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Pay vs Performance Disclosure - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 207.0	$ 179.1	$ 329.7	$ 321.7

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

ORGANIZATION AND BASIS OF PRESENTATION

6 Months Ended

Jun. 30, 2024

Accounting Policies [Abstract]

ORGANIZATION AND BASIS OF PRESENTATION

Organization

Evergy is a public utility holding company incorporated in 2017 and headquartered in Kansas City, Missouri. Evergy operates primarily through the following wholly-owned direct subsidiaries listed below.

•Evergy Kansas Central, Inc. (Evergy Kansas Central) is an integrated, regulated electric utility that provides electricity to customers in the state of Kansas. Evergy Kansas Central has one active wholly-owned subsidiary with significant operations, Evergy Kansas South, Inc. (Evergy Kansas South).

•Evergy Metro, Inc. (Evergy Metro) is an integrated, regulated electric utility that provides electricity to customers in the states of Missouri and Kansas.

•Evergy Missouri West, Inc. (Evergy Missouri West) is an integrated, regulated electric utility that provides electricity to customers in the state of Missouri.

•Evergy Transmission Company, LLC (Evergy Transmission Company) owns 13.5% of Transource Energy, LLC (Transource) with the remaining 86.5% owned by AEP Transmission Holding Company, LLC, a subsidiary of American Electric Power Company, Inc. (AEP). Transource is focused on the development of competitive electric transmission projects. Evergy Transmission Company accounts for its investment in Transource under the equity method.

Evergy Kansas Central also owns a 50% interest in Prairie Wind Transmission, LLC (Prairie Wind), which is a joint venture between Evergy Kansas Central and subsidiaries of AEP and Berkshire Hathaway Energy Company. Prairie Wind owns a 108-mile, 345 kilovolt (kV) double-circuit transmission line that provides transmission service in the Southwest Power Pool, Inc. (SPP). Evergy Kansas Central accounts for its investment in Prairie Wind under the equity method.

Evergy Kansas Central, Evergy Kansas South, Evergy Metro and Evergy Missouri West conduct business in their respective service territories using the name Evergy. Collectively, the Evergy Companies have approximately 15,800 megawatts (MWs) of owned generating capacity and renewable power purchase agreements and engage in the generation, transmission, distribution and sale of electricity to approximately 1.7 million customers in the states of Kansas and Missouri.

Basis of Presentation

These unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these unaudited consolidated financial statements do not include all of the information and notes required by GAAP for annual financial statements and should be read in conjunction with the consolidated financial statements in the Evergy Companies' combined 2023 Form 10-K.

These unaudited consolidated financial statements, in the opinion of management, reflect all normal recurring adjustments necessary to fairly present the unaudited consolidated financial statements for each of the Evergy Companies for these interim periods. In preparing financial statements that conform to GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses, and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.

Principles of Consolidation

Each of Evergy's, Evergy Kansas Central's and Evergy Metro's unaudited consolidated financial statements includes the accounts of their subsidiaries and the variable interest entities (VIE) of which Evergy and Evergy Kansas Central are the primary beneficiaries. Undivided interests in jointly-owned generation facilities are included on a proportionate basis. Intercompany transactions have been eliminated. The Evergy Companies assess financial performance and allocate resources on a consolidated basis (i.e., operate in one segment).

Cash, Cash Equivalents and Restricted Cash

Cash equivalents consists of highly liquid investments with original maturities of three months or less at acquisition. Evergy has restricted cash included in Other Current Assets and Other Non-current Assets on Evergy's consolidated balance sheet to facilitate the servicing of Evergy Missouri West Storm Funding I, LLC's (Evergy Missouri West Storm Funding) debt and the funding requirements for a jointly-owned generation facility. See Note 14 for additional information on the VIE. The following table summarizes the cash, cash equivalents and restricted cash included on Evergy's consolidated balance sheet.


	June 30 2024		December 31 2023
Evergy	(millions)
Current assets
Cash and cash equivalents	$	26.1	$	27.7
Other	7.7		—
Other assets
Other	1.7		—
Total cash, cash equivalents and restricted cash	$	35.5	$	27.7

Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost. The following table separately states the balances for fuel inventory and supplies.


	June 30 2024		December 31 2023
Evergy	(millions)
Fuel inventory	$	247.9	$	257.3
Supplies	558.8		518.9
Fuel inventory and supplies	$	806.7	$	776.2
Evergy Kansas Central
Fuel inventory	$	139.7	$	138.6
Supplies	291.1		273.3
Fuel inventory and supplies	$	430.8	$	411.9
Evergy Metro
Fuel inventory	$	71.5	$	81.5
Supplies	198.4		183.1
Fuel inventory and supplies	$	269.9	$	264.6

Property, Plant and Equipment

The following tables summarize the property, plant and equipment of Evergy, Evergy Kansas Central and Evergy Metro.


June 30, 2024	Evergy			Evergy Kansas Central			Evergy Metro
		(millions)
Electric plant in service		$	35,496.2		$	17,285.0		$	13,242.5
Electric plant acquisition adjustment		742.8			724.9			—
Accumulated depreciation		(13,738.4)			(6,690.7)			(5,578.1)
Plant in service, net		22,500.6			11,319.2			7,664.4
Construction work in progress		1,618.3			1,031.2			450.2
Nuclear fuel, net		181.8			90.6			91.2
Plant to be retired, net(b)		0.7			0.7			—
Property, plant and equipment, net		$	24,301.4		$	12,441.7		$	8,205.8

December 31, 2023	Evergy			Evergy Kansas Central			Evergy Metro
		(millions)
Electric plant in service(a)		$	34,558.1		$	16,858.7		$	13,005.5
Electric plant acquisition adjustment		724.9			724.9			—
Accumulated depreciation(a)		(13,301.6)			(6,502.7)			(5,404.9)
Plant in service, net(a)		21,981.4			11,080.9			7,600.6
Construction work in progress		1,543.5			939.1			428.7
Nuclear fuel, net		203.0			101.1			101.9
Plant to be retired, net(b)		0.8			0.8			—
Property, plant and equipment, net(a)		$	23,728.7		$	12,121.9		$	8,131.2

(a) As of June 30, 2024, Evergy and Evergy Kansas Central classified Property, Plant and Equipment of VIE, net as Property, Plant and Equipment, net. To conform with the current period presentation, amounts previously reported as Property, Plant and Equipment of VIE, net as of December 31, 2023, have been reclassified to Property, Plant and Equipment, net.

(b) As of June 30, 2024 and December 31, 2023, represents the planned retirement of Evergy Kansas Central analog meters prior to the end of their remaining useful lives.

Other Expense

The table below shows the detail of other expense for each of the Evergy Companies.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Evergy	(millions)
Non-service cost component of net benefit cost	$	(4.6)	$	(16.0)	$	(9.2)	$	(30.8)
Corporate-owned life insurance	(6.3)		(4.6)		(10.8)		(10.7)
Other	(0.5)		(0.4)		(0.9)		(0.8)
Other expense	$	(11.4)	$	(21.0)	$	(20.9)	$	(42.3)
Evergy Kansas Central
Non-service cost component of net benefit cost	$	0.6	$	(4.2)	$	1.1	$	(8.2)
Corporate-owned life insurance	(6.2)		(4.5)		(10.4)		(10.3)
Other	(0.2)		—		(0.2)		(0.1)
Other expense	$	(5.8)	$	(8.7)	$	(9.5)	$	(18.6)
Evergy Metro
Non-service cost component of net benefit cost	$	(3.1)	$	(9.2)	$	(6.1)	$	(17.9)
Corporate-owned life insurance	(0.1)		(0.1)		(0.4)		(0.4)
Other	(0.4)		(0.5)		(0.7)		(0.5)
Other expense	$	(3.6)	$	(9.8)	$	(7.2)	$	(18.8)

Earnings Per Share

To compute basic earnings per common share (EPS), Evergy divides net income attributable to Evergy, Inc. by the weighted average number of common shares outstanding. Diluted EPS includes the effect of issuable common shares resulting from restricted share units (RSUs), restricted stock, convertible notes and a warrant. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method, the contingently issuable share method or the if-converted method, as applicable.

The following table reconciles Evergy's basic and diluted EPS.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Income	(millions, except per share amounts)
Net income	$	210.1	$	182.2	$	335.9	$	327.9
Less: net income attributable to noncontrolling interests	3.1		3.1		6.2		6.2
Net income attributable to Evergy, Inc.	$	207.0	$	179.1	$	329.7	$	321.7
Common Shares Outstanding
Weighted average number of common shares outstanding - basic	230.3		230.1		230.2		230.0
Add: effect of dilutive securities	0.2		0.4		0.3		0.4
Diluted average number of common shares outstanding	230.5		230.5		230.5		230.4
Basic EPS	$	0.90	$	0.78	$	1.43	$	1.40
Diluted EPS	$	0.90	$	0.78	$	1.43	$	1.40

There were no anti-dilutive shares excluded from the computation of diluted EPS for the three months ended and year to date June 30, 2024. Anti-dilutive securities excluded from the computation of diluted EPS for the three months ended and year to date June 30, 2023 were 3,950,000 common shares issuable pursuant to a warrant. Also, there was no dilution resulting from Evergy's convertible notes for the three months ended and year to date June 30, 2024 and 2023.

Dividends Declared

In August 2024, Evergy's Board of Directors (Evergy Board) declared a quarterly dividend of $0.6425 per share on Evergy's common stock. The common dividend is payable on September 20, 2024, to shareholders of record as of August 20, 2024.

In August 2024, Evergy Kansas Central's Board of Directors declared a cash dividend to Evergy of up to $135.0 million, payable on or before September 19, 2024.

In August 2024, Evergy Metro's Board of Directors declared a cash dividend to Evergy of up to $110.0 million, payable on or before September 19, 2024.

Supplemental Cash Flow Information


Evergy
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	265.5	$	238.6

Income taxes, net of refunds	8.1		6.8
Right-of-use assets obtained in exchange for new operating lease liabilities	3.1		9.0
Right-of-use assets obtained in exchange for new finance lease liabilities	6.9		2.9
Non-cash investing transactions:
Property, plant and equipment additions	115.1		120.1


Evergy Kansas Central
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	108.1	$	95.1

Income taxes, net of refunds	7.3		52.2
Right-of-use assets obtained in exchange for new operating lease liabilities	1.3		4.6
Right-of-use assets obtained in exchange for new finance lease liabilities	4.9		2.9
Non-cash investing transactions:
Property, plant and equipment additions	72.5		58.6


Evergy Metro
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	71.7	$	64.4
Income taxes, net of refunds	3.5		(18.5)
Right-of-use assets obtained in exchange for new operating lease liabilities	1.6		4.2
Right-of-use assets obtained in exchange for new finance lease liabilities	2.0		—
Non-cash investing transactions:
Property, plant and equipment additions	25.9		41.5

Natural Gas Plant Investment

In April 2024, Evergy Missouri West purchased a 22% ownership interest representing approximately 145 MW in Dogwood Energy Center (Dogwood), an operational natural gas combined cycle facility located in Missouri, for approximately $60 million. The purchase was recorded as an asset acquisition to property, plant and equipment, net, on Evergy's consolidated balance sheet. The purchase was subject to terms and conditions listed in a stipulation and agreement approved by the Public Service Commission of the State of Missouri (MPSC) allowing Evergy Missouri West to recover in rates a return of and return on the original cost, net of accumulated depreciation, of

Dogwood. Evergy Missouri West shall also be allowed to recover in rates over two years a return of, but not a return on, the amount of the purchase price paid in excess of the original cost, net of accumulated depreciation, of Dogwood. In addition, net revenues generated from Evergy Missouri West's ownership of Dogwood from the date of closing to the date new rates become effective in Evergy Missouri West's current rate case shall not impact rates and shall be retained by Evergy Missouri West and reduce the amount of the purchase price paid in excess of the original cost, net of accumulated depreciation, of Dogwood to be recovered from customers.

VARIABLE INTEREST ENTITIES (Tables)

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Variable Interest Entities

The following table summarizes the impact of Evergy Missouri West Storm Funding on Evergy's consolidated balance sheet as of June 30, 2024. There was no impact on Evergy's consolidated balance sheet as of December 31, 2023.

June 30

2024

Evergy

(millions)

Current assets

Regulatory assets

15.4

Other

6.9

Other assets

Regulatory assets

302.6

Other

1.7

Current liabilities

Current maturities of long-term debt

19.5

Accrued interest

6.0

Long-term liabilities

Long-term debt, net

303.6

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Consolidated Balance Sheets - Evergy Kansas Central, Inc - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 26.1	$ 27.7
Receivables, net of allowance for credit losses of $8.8 and $11.6, respectively	429.3	256.9
Accounts receivable pledged as collateral	329.0	342.0
Fuel inventory and supplies	806.7	776.2
Income taxes receivable	0.0	11.5
Regulatory assets	252.0	292.1
Prepaid expenses	73.3	51.3
Other	47.6	31.4
Total Current Assets	1,964.0	1,789.1
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	24,301.4	23,728.7
OTHER ASSETS:
Regulatory assets	1,843.5	1,795.3
Nuclear decommissioning trust	827.7	766.4
Other	557.8	560.0
Total Other Assets	5,565.6	5,458.3
TOTAL ASSETS	31,831.0	30,976.1
CURRENT LIABILITIES:
Current maturities of long-term debt	819.5	800.0
Commercial paper	969.7	951.8
Collateralized note payable	329.0	342.0
Accounts payable	374.3	616.9
Accrued taxes	234.8	156.7
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	117.1	134.2
Regulatory liabilities	143.5	183.0
Asset retirement obligations	44.9	40.3
Accrued compensation and benefits	58.3	74.5
Other	219.7	213.2
Total Current Liabilities	3,310.8	3,512.6
LONG-TERM LIABILITIES:
Long-term debt, net	11,954.6	11,053.3
Deferred income taxes	2,146.1	2,097.9
Unamortized investment tax credits	166.4	170.0
Regulatory liabilities	2,486.7	2,542.5
Pension and post-retirement liability	486.6	464.1
Asset retirement obligations	1,252.4	1,162.8
Other	295.7	287.9
Total Long-Term Liabilities	18,788.5	17,778.5
Commitments and Contingencies (Note $12)
Evergy, Inc. Shareholders' Equity:
Common stock	7,239.2	7,234.9
Retained earnings	2,491.3	2,457.8
Total Evergy, Inc. Shareholders' Equity	9,703.6	9,663.1
Noncontrolling Interests	28.1	21.9
Total Equity	9,731.7	9,685.0
TOTAL LIABILITIES AND EQUITY	31,831.0	30,976.1
Evergy Kansas Central
CURRENT ASSETS:
Cash and cash equivalents	7.0	9.2
Receivables, net of allowance for credit losses of $8.8 and $11.6, respectively	238.0	171.8
Accounts receivable pledged as collateral	169.0	166.0
Fuel inventory and supplies	430.8	411.9
Income taxes receivable	0.0	11.5
Regulatory assets	113.3	127.7
Prepaid expenses	34.6	22.9
Other	11.9	13.2
Total Current Assets	1,021.8	945.8
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	12,441.7	12,121.9
OTHER ASSETS:
Regulatory assets	543.8	505.2
Nuclear decommissioning trust	387.6	365.1
Other	269.8	288.6
Total Other Assets	1,201.2	1,158.9
TOTAL ASSETS	14,664.7	14,226.6
CURRENT LIABILITIES:
Commercial paper	595.6	230.4
Collateralized note payable	169.0	166.0
Accounts payable	191.9	244.7
Accrued taxes	116.6	111.1
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	53.8	79.7
Regulatory liabilities	73.3	104.1
Asset retirement obligations	25.9	22.2
Accrued compensation and benefits	31.0	37.6
Other	143.3	142.4
Total Current Liabilities	1,594.1	1,432.6
LONG-TERM LIABILITIES:
Long-term debt, net	4,581.8	4,580.4
Deferred income taxes	852.1	844.2
Unamortized investment tax credits	54.3	56.2
Regulatory liabilities	1,400.9	1,432.4
Pension and post-retirement liability	265.9	256.3
Asset retirement obligations	630.1	577.1
Other	157.5	155.5
Total Long-Term Liabilities	7,942.6	7,902.1
Commitments and Contingencies (Note $12)
Evergy, Inc. Shareholders' Equity:
Common stock	2,737.6	2,737.6
Retained earnings	2,362.3	2,132.4
Total Evergy, Inc. Shareholders' Equity	5,099.9	4,870.0
Noncontrolling Interests	28.1	21.9
Total Equity	5,128.0	4,891.9
TOTAL LIABILITIES AND EQUITY	14,664.7	14,226.6
Related Party [Member] \| Evergy Kansas Central
CURRENT ASSETS:
Related party receivables	17.2	11.6
CURRENT LIABILITIES:
Accounts payable	193.7	294.4
Variable Interest Entities
CURRENT ASSETS:
Regulatory assets	15.4	0.0
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	130.0	133.6
OTHER ASSETS:
Regulatory assets	302.6	0.0
CURRENT LIABILITIES:
Current maturities of long-term debt	19.5	0.0
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	6.0	0.0
LONG-TERM LIABILITIES:
Long-term debt, net	303.6	0.0
Variable Interest Entities \| Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	$ 130.0	$ 133.6

FAIR VALUE MEASUREMENTS - Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	$ 21.5	$ 24.0	$ 50.9	$ 57.2
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment earnings (loss)
Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	22.0	25.2	$ 52.3	54.7
Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	(0.4)	(1.3)	(1.7)	0.8
Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	(0.1)	0.1	0.3	1.7
Evergy Kansas Central
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	12.0	8.1	$ 21.0	23.5
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment earnings (loss)
Evergy Kansas Central \| Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	12.0	7.9	$ 20.5	22.0
Evergy Kansas Central \| Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	0.0	0.2	0.5	1.5
Evergy Metro
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	9.6	16.0	$ 30.1	33.5
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Investment earnings (loss)
Evergy Metro \| Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	10.0	17.3	$ 31.8	32.7
Evergy Metro \| Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gains (losses)	$ (0.4)	$ (1.3)	$ (1.7)	$ 0.8

Derivative Instruments Offsetting Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
Derivative Liability, Current	$ 7.3	$ 11.6
Derivative Liability, Noncurrent	$ 36.0	$ 33.8
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other	Other
Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	$ 85.4	$ 128.8
Power commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	38.0	32.9
Commodity contract current
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	42.7	89.1
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	(35.4)	(77.5)
Commodity contract noncurrent
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	42.7	39.7
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	(6.7)	(5.9)
Power commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	13.5	21.0
Natural gas commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	29.2	68.1
Natural gas commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	4.7	6.8
Evergy Kansas Central
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
Derivative Liability, Current	7.4	6.9
Derivative Liability, Noncurrent	35.9	33.8
Evergy Kansas Central \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	83.6	121.0
Evergy Kansas Central \| Power commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	38.0	32.9
Evergy Kansas Central \| Commodity contract current
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	40.9	81.3
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	(33.5)	(74.4)
Evergy Kansas Central \| Commodity contract noncurrent
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	42.7	39.7
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	(6.8)	(5.9)
Evergy Kansas Central \| Power commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	11.7	14.3
Evergy Kansas Central \| Natural gas commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	29.2	67.0
Evergy Kansas Central \| Natural gas commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	4.7	6.8
Evergy Metro
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
Derivative Liability, Current	0.0	3.6
Derivative Liability, Noncurrent	0.0	0.0
Evergy Metro \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	1.0	5.7
Evergy Metro \| Commodity contract current
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	1.0	5.7
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	(1.0)	(2.1)
Evergy Metro \| Commodity contract noncurrent
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset [Abstract]
FIN 39 Derivative liability netting	0.0	0.0
Evergy Metro \| Natural gas commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative, Fair Value, Net [Abstract]
Derivative Liability, Fair Value, Gross Liability	$ 1.0	$ 5.7

TAXES

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

TAXES

Components of income tax expense are detailed in the following tables.


Evergy

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	0.7	$	5.6	$	10.9	$	10.6
State	9.2		7.2		17.3		11.9
Total	9.9		12.8		28.2		22.5
Deferred income taxes
Federal	6.7		5.5		4.2		13.2
State	(7.4)		(5.6)		(14.1)		(8.9)
Total	(0.7)		(0.1)		(9.9)		4.3







Investment tax credit amortization	(1.8)		(1.9)		(3.6)		(3.6)

Income tax expense	$	7.4	$	10.8	$	14.7	$	23.2


Evergy Kansas Central

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	10.2	$	3.4	$	14.5	$	21.5
State	4.2		2.9		7.3		4.9
Total	14.4		6.3		21.8		26.4
Deferred income taxes
Federal	(7.7)		(0.7)		(10.2)		(10.7)
State	(2.9)		(1.6)		(4.7)		(2.3)
Total	(10.6)		(2.3)		(14.9)		(13.0)






Investment tax credit amortization	(0.9)		(0.9)		(1.9)		(1.9)

Income tax expense	$	2.9	$	3.1	$	5.0	$	11.5


Evergy Metro

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	3.9	$	3.3	$	5.9	$	(1.8)
State	3.9		3.6		7.2		5.2
Total	7.8		6.9		13.1		3.4
Deferred income taxes
Federal	6.0		8.1		10.8		20.5
State	(3.3)		(2.4)		(6.2)		(3.6)
Total	2.7		5.7		4.6		16.9






Investment tax credit amortization	(0.8)		(0.9)		(1.6)		(1.7)

Income tax expense	$	9.7	$	11.7	$	16.1	$	18.6

Effective Income Tax Rates

Effective income tax rates reflected in the financial statements and the reasons for their differences from the statutory federal rates are detailed in the following tables.


Evergy

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(1.2)		(1.3)		(1.2)		(1.3)
State income taxes	0.5		—		0.5		0.2
Flow through depreciation for plant-related differences	(8.7)		(7.1)		(8.6)		(7.4)
Federal tax credits	(6.8)		(6.3)		(6.7)		(5.0)
Non-controlling interest	(0.3)		(0.3)		(0.3)		(0.3)
AFUDC equity	(0.4)		(0.6)		(0.3)		(0.6)
Amortization of federal investment tax credits	(0.6)		(0.6)		(0.6)		(0.6)


Valuation allowance	—		0.4		—		0.2

Officer compensation limitation	(0.3)		0.2		0.1		0.2
Other	0.2		0.2		0.3		0.2
Effective income tax rate	3.4	%	5.6	%	4.2	%	6.6	%


Evergy Kansas Central

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(1.9)		(2.3)		(1.9)		(2.4)
State income taxes	0.6		0.7		0.6		0.7
Flow through depreciation for plant-related differences	(5.8)		(2.6)		(5.6)		(3.4)
Federal tax credits	(10.5)		(12.3)		(10.7)		(9.0)
Non-controlling interest	(0.4)		(0.5)		(0.5)		(0.5)
AFUDC equity	(0.5)		(0.4)		(0.5)		(0.5)
Amortization of federal investment tax credits	(0.4)		(0.4)		(0.4)		(0.4)



Stock compensation	—		0.1		—		(0.1)

Other	0.2		0.1		0.1		0.2
Effective income tax rate	2.3	%	3.4	%	2.1	%	5.6	%


Evergy Metro

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(0.1)		(0.1)		(0.1)		(0.1)
State income taxes	0.6		1.0		0.7		0.9
Flow through depreciation for plant-related differences	(7.8)		(8.4)		(7.8)		(8.3)
Federal tax credits	(0.7)		(0.2)		(0.7)		(0.2)
AFUDC equity	(0.2)		(0.9)		(0.1)		(0.9)
Amortization of federal investment tax credits	(0.8)		(0.8)		(0.8)		(0.8)



Stock compensation	—		—		0.6		0.4
Officer compensation limitation	(0.4)		0.6		0.3		0.6
Other	—		(0.1)		—		(0.2)
Effective income tax rate	11.6	%	12.1	%	13.1	%	12.4	%

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//740/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-21

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482526/740-270-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-17

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

ORGANIZATION AND BASIS OF PRESENTATION - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 26.1	$ 27.7
Other	7.7	0.0
Other	1.7	0.0
Total cash, cash equivalents and restricted cash	35.5	$ 27.7	$ 31.4	$ 25.2
Variable Interest Entities
Restricted Cash and Cash Equivalents Items [Line Items]
Other	6.9
Other	$ 1.7

PENSION PLANS AND POST-RETIREMENT BENEFITS

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

PENSION PLANS AND POST-RETIREMENT BENEFITS

Evergy and certain of its subsidiaries maintain, and Evergy Kansas Central and Evergy Metro participate in, qualified non-contributory defined benefit pension plans covering the majority of Evergy Kansas Central's and Evergy Metro's employees as well as certain non-qualified plans covering certain active and retired officers. Evergy is also responsible for its indirect 94% ownership share of Wolf Creek defined benefit plans, consisting of Evergy Kansas South's and Evergy Metro's respective 47% ownership shares.

For the majority of employees, pension benefits under these plans reflect the employees' compensation, years of service and age at retirement. However, for the plan covering Evergy Kansas Central's employees, the benefits for non-union employees hired between 2002 and the second quarter of 2018 and union employees hired beginning in 2012 are derived from a cash balance account formula. The plan was closed to future non-union employees in 2018. For the plans covering Evergy Metro's employees, the benefits for union employees hired beginning in 2014 are derived from a cash balance account formula and the plans were closed to future non-union employees in 2014.

Evergy and its subsidiaries also provide certain post-retirement health care and life insurance benefits for substantially all retired employees of Evergy Kansas Central and Evergy Metro and their respective shares of Wolf Creek's post-retirement benefit plans.

The Evergy Companies record pension and post-retirement expense in accordance with rate orders from the KCC and MPSC that allow the difference between pension and post-retirement costs under GAAP and costs for ratemaking to be recognized as a regulatory asset or liability. This difference between financial and regulatory accounting methods is due to timing and will be eliminated over the life of the plans.

For the three months ended and year to date June 30, 2024, Evergy, Evergy Kansas Central and Evergy Metro recorded no pension settlement charges. For the three months ended June 30, 2023, Evergy, Evergy Kansas Central and Evergy Metro recorded pension settlement (gains) losses of ($2.0) million, $0.2 million and ($2.2) million, respectively. Year to date June 30, 2023, Evergy, Evergy Kansas Central and Evergy Metro recorded pension settlement (gains) losses of ($17.9) million, $0.6 million and ($18.5) million, respectively. These settlement charges were the result of accelerated distributions as a result of employee retirements for certain plan participants. Evergy, Evergy Kansas Central and Evergy Metro deferred substantially all of the charges to regulatory assets or regulatory liabilities and expect to recover these amounts over future periods pursuant to regulatory agreements.

The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.


	Pension Benefits						Post-Retirement Benefits
Three Months Ended June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	11.5	$	4.8	$	6.7	$	0.4	$	0.2	$	0.2
Interest cost	22.4		11.4		10.8		2.5		1.3		1.3
Expected return on plan assets	(21.7)		(10.8)		(11.0)		(2.9)		(1.5)		(1.3)
Prior service cost	0.5		0.5		—		—		—		(0.1)
Recognized net actuarial (gain) loss	(4.4)		0.2		(4.3)		(1.0)		(0.5)		(0.5)

Net periodic benefit costs before regulatory adjustment and intercompany allocations	8.3		6.1		2.2		(1.0)		(0.5)		(0.4)
Regulatory adjustment	6.9		(1.1)		7.8		—		0.2		(0.1)
Intercompany allocations	—		(0.6)		(0.6)		—		—		0.2
Net periodic benefit costs (income)	$	15.2	$	4.4	$	9.4	$	(1.0)	$	(0.3)	$	(0.3)


	Pension Benefits						Post-Retirement Benefits
Year to Date June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	23.0	$	9.5	$	13.5	$	0.8	$	0.4	$	0.4
Interest cost	44.8		22.8		21.5		5.0		2.6		2.5
Expected return on plan assets	(43.4)		(21.5)		(21.9)		(5.7)		(3.0)		(2.7)
Prior service cost	1.0		1.0		—		—		—		(0.2)
Recognized net actuarial (gain)/loss	(8.7)		0.4		(8.7)		(2.0)		(1.0)		(0.9)

Net periodic benefit costs before regulatory adjustment and intercompany allocations	16.7		12.2		4.4		(1.9)		(1.0)		(0.9)
Regulatory adjustment	12.6		(3.2)		15.5		—		0.4		(0.2)
Intercompany allocations	—		(1.0)		(1.1)		—		—		0.3
Net periodic benefit costs (income)	$	29.3	$	8.0	$	18.8	$	(1.9)	$	(0.6)	$	(0.8)


	Pension Benefits						Post-Retirement Benefits
Three Months Ended June 30, 2023	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	12.0	$	5.0	$	7.0	$	0.5	$	0.3	$	0.2
Interest cost	23.0		11.8		10.9		2.8		1.3		1.4
Expected return on plan assets	(22.1)		(11.2)		(10.9)		(3.0)		(1.5)		(1.4)
Prior service cost	0.5		0.5		—		—		—		(0.1)
Recognized net actuarial (gain)/loss	(3.9)		0.1		(3.8)		(1.1)		(0.5)		(0.5)
Settlement (gain) loss	(2.0)		0.2		(2.2)		—		—		—
Net periodic benefit costs before regulatory adjustment and intercompany allocations	7.5		6.4		1.0		(0.8)		(0.4)		(0.4)
Regulatory adjustment	22.0		6.9		15.1		(0.2)		(0.6)		0.4
Intercompany allocations	—		(0.6)		(0.3)		—		—		—
Net periodic benefit costs (income)	$	29.5	$	12.7	$	15.8	$	(1.0)	$	(1.0)	$	—


	Pension Benefits						Post-Retirement Benefits
Year to Date June 30, 2023	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	23.2	$	9.6	$	13.6	$	0.9	$	0.5	$	0.4
Interest cost	45.4		23.2		21.7		5.6		2.7		2.7
Expected return on plan assets	(43.9)		(22.2)		(21.7)		(6.0)		(3.0)		(2.8)
Prior service cost	1.0		1.0		—		—		—		(0.2)
Recognized net actuarial (gain)/loss	(9.5)		(0.7)		(8.4)		(2.1)		(1.0)		(1.0)
Settlement (gain) loss	(17.9)		0.6		(18.5)		—		—		—
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(1.7)		11.5		(13.3)		(1.6)		(0.8)		(0.9)
Regulatory adjustment	55.5		14.3		41.0		(0.3)		(1.2)		1.0
Intercompany allocations	—		(1.1)		(0.5)		—		0.1		—
Net periodic benefit costs (income)	$	53.8	$	24.7	$	27.2	$	(1.9)	$	(1.9)	$	0.1

The components of net periodic benefit costs other than the service cost component are included in other expense on the Evergy Companies' consolidated statements of income and comprehensive income.

Year to date June 30, 2024, Evergy, Evergy Kansas Central and Evergy Metro made no cash pension contributions. Evergy expects to make cash pension contributions of $36.8 million in 2024 to satisfy the Employee Retirement Income Security Act of 1974, as amended (ERISA) funding requirements and KCC and MPSC rate orders, of which $9.8 million is expected to be paid by Evergy Kansas Central and $27.0 million is expected to be paid by Evergy Metro.

Year to date June 30, 2024, Evergy, Evergy Kansas Central and Evergy Metro made post-retirement benefit contributions of $0.4 million, $0.2 million and $0.2 million, respectively. Evergy, Evergy Kansas Central and Evergy Metro expect to make additional contributions in 2024 of $0.2 million, $0.1 million and $0.1 million, respectively, to the post-retirement benefit plans.

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 70
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480794/715-70-50-1

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480482/715-20-55-17

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(03)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (q)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (l)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//715/tableOfContent

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(iii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (o)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (p)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (r)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (r)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480126/715-20-S99-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480266/715-60-50-3

+ Details

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT

Evergy's $2.5 billion master credit facility expires in 2027. Evergy, Evergy Kansas Central, Evergy Metro and Evergy Missouri West have borrowing capacity under the master credit facility with specific sublimits for each borrower. These sublimits can be unilaterally adjusted by Evergy for each borrower provided the sublimits remain within minimum and maximum sublimits as specified in the facility. The applicable interest rates and commitment fees of the facility are subject to upward or downward adjustments, within certain limitations, if Evergy achieves, or fails to achieve, certain sustainability-linked targets based on two key performance indicator metrics: (i) Non-Emitting Generation Capacity and (ii) Diverse Supplier Spend (as defined in the facility).

A default by any borrower under the facility or one of its significant subsidiaries on other indebtedness totaling more than $100.0 million constitutes a default by that borrower under the facility. Under the terms of this facility, each of Evergy, Evergy Kansas Central, Evergy Metro and Evergy Missouri West is required to maintain a total indebtedness to total capitalization ratio, as defined in the facility, of not greater than 0.65 to 1.00 at all times. As of June 30, 2024, Evergy, Evergy Kansas Central, Evergy Metro and Evergy Missouri West were in compliance with this covenant.

The following table summarizes the committed credit facilities (excluding receivable sale facilities discussed in Note 3) available to the Evergy Companies as of June 30, 2024 and December 31, 2023.


			Amounts Drawn
	Master Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
June 30, 2024	(millions)
Evergy, Inc.	$	200.0	$	—	$	0.7	$	—	$	199.3	—%
Evergy Kansas Central	750.0		595.6		1.0		—		153.4		5.53%
Evergy Metro	850.0		264.3		1.0		—		584.7		5.50%
Evergy Missouri West	700.0		109.8		—		—		590.2		5.49%
Evergy	$	2,500.0	$	969.7	$	2.7	$	—	$	1,527.6

December 31, 2023
Evergy, Inc.	$	300.0	$	—	$	0.7	$	—	$	299.3	—%
Evergy Kansas Central	750.0		230.4		1.0		—		518.6		5.56%
Evergy Metro	750.0		423.3		—		—		326.7		5.58%
Evergy Missouri West	700.0		298.1		—		—		401.9		5.66%
Evergy	$	2,500.0	$	951.8	$	1.7	$	—	$	1,546.5

REVENUE (Tables)

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Evergy's, Evergy Kansas Central's and Evergy Metro's revenues disaggregated by customer class are summarized in the following tables.


Evergy
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	536.7	$	492.7	$	1,015.7	$	951.3
Commercial	485.8		460.7		918.5		890.7
Industrial	174.7		157.3		335.1		316.4
Other retail	10.2		8.9		22.1		20.2
Total electric retail	$	1,207.4	$	1,119.6	$	2,291.4	$	2,178.6
Wholesale	73.3		83.1		144.3		153.5
Transmission	122.4		100.5		237.8		206.3
Industrial steam and other	4.0		5.8		14.2		17.5
Total revenue from contracts with customers	$	1,407.1	$	1,309.0	$	2,687.7	$	2,555.9
Other	40.4		45.2		90.8		95.1
Operating revenues	$	1,447.5	$	1,354.2	$	2,778.5	$	2,651.0


Evergy Kansas Central
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	233.7	$	192.3	$	448.0	$	384.4
Commercial	208.3		180.7		391.9		358.8
Industrial	114.2		98.2		220.2		206.7
Other retail	6.0		2.5		12.1		6.8
Total electric retail	$	562.2	$	473.7	$	1,072.2	$	956.7
Wholesale	47.7		58.8		115.8		126.4
Transmission	115.4		96.6		224.3		197.2
Other	—		—		1.8		1.7
Total revenue from contracts with customers	$	725.3	$	629.1	$	1,414.1	$	1,282.0
Other	2.0		10.5		6.4		36.2
Operating revenues	$	727.3	$	639.6	$	1,420.5	$	1,318.2


Evergy Metro
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	184.9	$	186.0	$	340.9	$	344.0
Commercial	185.0		197.3		356.2		373.2
Industrial	33.5		35.0		64.7		63.4
Other retail	2.3		3.4		5.5		6.1
Total electric retail	$	405.7	$	421.7	$	767.3	$	786.7
Wholesale	25.5		25.9		31.8		37.3
Transmission	4.9		3.3		9.8		7.1
Other	—		—		2.5		2.4
Total revenue from contracts with customers	$	436.1	$	450.9	$	811.4	$	833.5
Other	37.9		34.4		83.5		58.2
Operating revenues	$	474.0	$	485.3	$	894.9	$	891.7

Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The gross notional contract amount by commodity type for derivative instruments is summarized in the following table.

June 30

December 31

Non-hedging derivatives

Notional volume unit of measure

2024

2023

Evergy

(millions)

Commodity contracts

Power

MWhs

108.9

52.9

Natural gas

MMBtu

774.1

559.9

Evergy Kansas Central

Commodity contracts

Power

MWhs

63.2

32.1

Natural gas

MMBtu

774.1

558.7

Evergy Metro

Commodity contracts

Power

MWhs

34.6

15.1

Fair value of open derivative positions, gross values before netting agreements and netting of cash collateral [Table Text Block]

The fair values of Evergy's open derivative positions and balance sheet classifications are summarized in the following tables. The fair values below are gross values before netting agreements and netting of cash collateral.



		June 30		December 31
Evergy		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	23.7	$	23.2
	Other assets - long-term	40.5		35.7
Natural gas	Other assets - current	27.2		68.1
	Other assets - long-term	4.1		6.0
Total derivative assets		$	95.5	$	133.0
Commodity contracts
Power	Other liabilities - current	$	13.5	$	21.0
	Other liabilities - long-term	38.0		32.9
Natural gas	Other liabilities - current	29.2		68.1
	Other liabilities - long-term	4.7		6.8
Total derivative liabilities		$	85.4	$	128.8



		June 30		December 31
Evergy Kansas Central		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	13.4	$	18.3
	Other assets - long-term	40.5		35.7
Natural gas	Other assets - current	27.2		68.1
	Other assets - long-term	4.1		6.0
Total derivative assets		$	85.2	$	128.1
Commodity contracts
Power	Other liabilities - current	$	11.7	$	14.3
	Other liabilities - long-term	38.0		32.9
Natural gas	Other liabilities - current	29.2		67.0
	Other liabilities - long-term	4.7		6.8
Total derivative liabilities		$	83.6	$	121.0



		June 30		December 31
Evergy Metro		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	6.6	$	2.1



Total derivative assets		$	6.6	$	2.1
Commodity contracts
Power	Other liabilities - current	$	1.0	$	5.7



Total derivative liabilities		$	1.0	$	5.7

Offsetting Derivative Assets and Liabilities [Table Text Block]

The following tables present the line items on the Evergy Companies' consolidated balance sheets where derivative assets and liabilities are reported. The gross amounts offset in the tables below show the effect of master netting arrangements and include collateral posted to offset the net position.


June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro
Derivative Assets	(millions)
Current
Gross amounts recognized	$	50.9	$	40.6	$	6.6
Gross amounts offset	(36.9)		(35.1)		(1.0)
Net amounts presented in other assets - current	$	14.0	$	5.5	$	5.6
Long-Term
Gross amounts recognized	$	44.6	$	44.6	$	—
Gross amounts offset	(12.3)		(12.3)		—
Net amounts presented in other assets - long-term	$	32.3	$	32.3	$	—
Derivative Liabilities
Current
Gross amounts recognized	$	42.7	$	40.9	$	1.0
Gross amounts offset	(35.4)		(33.5)		(1.0)
Net amounts presented in other liabilities - current	$	7.3	$	7.4	$	—
Long-Term
Gross amounts recognized	$	42.7	$	42.7	$	—
Gross amounts offset	(6.7)		(6.8)		—
Net amounts presented in other liabilities - long-term	$	36.0	$	35.9	$	—


December 31, 2023	Evergy		Evergy Kansas Central		Evergy Metro

Derivative Assets	(millions)
Current
Gross amounts recognized	$	91.3	$	86.4	$	2.1
Gross amounts offset	(78.4)		(75.3)		(2.1)
Net amounts presented in other assets - current	$	12.9	$	11.1	$	—
Long-Term
Gross amounts recognized	$	41.7	$	41.7	$	—
Gross amounts offset	(11.9)		(11.9)		—
Net amounts presented in other assets - long-term	$	29.8	$	29.8	$	—
Derivative Liabilities
Current
Gross amounts recognized	$	89.1	$	81.3	$	5.7
Gross amounts offset	(77.5)		(74.4)		(2.1)
Net amounts presented in other liabilities - current	$	11.6	$	6.9	$	3.6
Long-Term
Gross amounts recognized	$	39.7	$	39.7	$	—
Gross amounts offset	(5.9)		(5.9)		—
Net amounts presented in other liabilities - long-term	$	33.8	$	33.8	$	—

Derivative Instruments, Gain (Loss) [Table Text Block]

The following table summarizes the amounts of gain (loss) recognized in income for the change in fair value of derivatives not designated as hedging instruments for the Evergy Companies.


		Three Months Ended June 30				Year to Date June 30

Location of gain (loss)	Contract type	2024		2023		2024		2023
Evergy		(millions)
Operating revenues	Commodity	$	(3.9)	$	2.7	$	(9.9)	$	17.6
Total		$	(3.9)	$	2.7	$	(9.9)	$	17.6
Evergy Kansas Central
Operating revenues	Commodity	$	(3.9)	$	2.7	$	(9.9)	$	17.6
Total		$	(3.9)	$	2.7	$	(9.9)	$	17.6

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.6425	$ 0.6425	$ 0.6125	$ 0.6125

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS

6 Months Ended

Jun. 30, 2024

In the normal course of business, Evergy Kansas Central, Evergy Metro and Evergy Missouri West engage in related party transactions with one another. A summary of these transactions and the amounts associated with them is provided below.

Jointly-Owned Plants and Shared Services

Employees of Evergy Kansas Central and Evergy Metro manage Evergy Missouri West's business and operate its facilities at cost, including Evergy Missouri West's 18% ownership interest in Evergy Metro's Iatan Nos. 1 and 2. Employees of Evergy Kansas Central manage Jeffrey Energy Center (JEC) and operate its facilities at cost, including Evergy Missouri West's 8% ownership interest in JEC. Employees of Evergy Metro manage La Cygne Station and operate its facilities at cost, including Evergy Kansas Central's 50% interest in La Cygne Station. Employees of Evergy Metro and Evergy Kansas Central also provide one another with shared service support, including costs related to human resources, information technology, accounting and legal services.

The operating expenses and capital costs billed for jointly-owned plants and shared services are detailed in the following table.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
	(millions)
Evergy Kansas Central billings to Evergy Missouri West	$	10.4	$	9.9	$	17.5	$	16.1
Evergy Metro billings to Evergy Missouri West	31.3		30.4		59.5		57.2
Evergy Kansas Central billings to Evergy Metro	12.3		12.0		23.6		22.9
Evergy Metro billings to Evergy Kansas Central	32.8		31.7		65.2		60.6

Related Party Net Receivables and Payables

The following table summarizes Evergy Kansas Central's and Evergy Metro's related party net receivables and payables.



	June 30		December 31
	2024		2023
Evergy Kansas Central	(millions)
Net payable to Evergy	$	(171.3)	$	(274.5)
Net payable to Evergy Metro	(22.4)		(19.6)
Net receivable from Evergy Missouri West	17.2		11.3

Evergy Metro
Net receivable from Evergy	$	17.9	$	15.9
Net receivable from Evergy Kansas Central	22.4		19.6
Net receivable from Evergy Missouri West	74.2		91.9

Money Pool

Evergy Kansas Central, Evergy Metro and Evergy Missouri West are authorized to participate in the Evergy, Inc. money pool, which is an internal financing arrangement in which funds may be lent on a short-term basis between Evergy Kansas Central, Evergy Metro, Evergy Missouri West and Evergy, Inc. Evergy, Inc. can lend but not borrow under the money pool.

As of June 30, 2024 and December 31, 2023, Evergy Metro had no outstanding receivables or payables under the money pool. As of June 30, 2024, Evergy Kansas Central had a $157.8 million outstanding payable to Evergy, Inc. under the money pool. As of December 31, 2023, Evergy Kansas Central had a $261.4 million outstanding payable to Evergy, Inc. under the money pool.

Tax Allocation Agreement

Evergy files a consolidated federal income tax return as well as unitary and combined income tax returns in several state jurisdictions with Kansas and Missouri being the most significant. Income taxes for consolidated or combined subsidiaries are allocated to the subsidiaries based on separate company computations of income or loss. The following table summarizes Evergy Kansas Central's and Evergy Metro's income taxes receivable from (payable to) Evergy.



	June 30		December 31
	2024		2023
Evergy Kansas Central	(millions)
Income taxes receivable from (payable to) Evergy	$	(2.9)	$	11.5

Evergy Metro
Income taxes payable to Evergy	$	(16.5)	$	(6.8)

- Definition

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-6

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(g)(3))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-07(2)(e))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//850/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-6

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483326/850-10-50-1

+ Details

TAXES (Tables)

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Components of income tax expense are detailed in the following tables.


Evergy

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	0.7	$	5.6	$	10.9	$	10.6
State	9.2		7.2		17.3		11.9
Total	9.9		12.8		28.2		22.5
Deferred income taxes
Federal	6.7		5.5		4.2		13.2
State	(7.4)		(5.6)		(14.1)		(8.9)
Total	(0.7)		(0.1)		(9.9)		4.3







Investment tax credit amortization	(1.8)		(1.9)		(3.6)		(3.6)

Income tax expense	$	7.4	$	10.8	$	14.7	$	23.2


Evergy Kansas Central

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	10.2	$	3.4	$	14.5	$	21.5
State	4.2		2.9		7.3		4.9
Total	14.4		6.3		21.8		26.4
Deferred income taxes
Federal	(7.7)		(0.7)		(10.2)		(10.7)
State	(2.9)		(1.6)		(4.7)		(2.3)
Total	(10.6)		(2.3)		(14.9)		(13.0)






Investment tax credit amortization	(0.9)		(0.9)		(1.9)		(1.9)

Income tax expense	$	2.9	$	3.1	$	5.0	$	11.5


Evergy Metro

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Current income taxes	(millions)
Federal	$	3.9	$	3.3	$	5.9	$	(1.8)
State	3.9		3.6		7.2		5.2
Total	7.8		6.9		13.1		3.4
Deferred income taxes
Federal	6.0		8.1		10.8		20.5
State	(3.3)		(2.4)		(6.2)		(3.6)
Total	2.7		5.7		4.6		16.9






Investment tax credit amortization	(0.8)		(0.9)		(1.6)		(1.7)

Income tax expense	$	9.7	$	11.7	$	16.1	$	18.6

Schedule of Effective Income Tax Rate Reconciliation

Effective income tax rates reflected in the financial statements and the reasons for their differences from the statutory federal rates are detailed in the following tables.


Evergy

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(1.2)		(1.3)		(1.2)		(1.3)
State income taxes	0.5		—		0.5		0.2
Flow through depreciation for plant-related differences	(8.7)		(7.1)		(8.6)		(7.4)
Federal tax credits	(6.8)		(6.3)		(6.7)		(5.0)
Non-controlling interest	(0.3)		(0.3)		(0.3)		(0.3)
AFUDC equity	(0.4)		(0.6)		(0.3)		(0.6)
Amortization of federal investment tax credits	(0.6)		(0.6)		(0.6)		(0.6)


Valuation allowance	—		0.4		—		0.2

Officer compensation limitation	(0.3)		0.2		0.1		0.2
Other	0.2		0.2		0.3		0.2
Effective income tax rate	3.4	%	5.6	%	4.2	%	6.6	%


Evergy Kansas Central

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(1.9)		(2.3)		(1.9)		(2.4)
State income taxes	0.6		0.7		0.6		0.7
Flow through depreciation for plant-related differences	(5.8)		(2.6)		(5.6)		(3.4)
Federal tax credits	(10.5)		(12.3)		(10.7)		(9.0)
Non-controlling interest	(0.4)		(0.5)		(0.5)		(0.5)
AFUDC equity	(0.5)		(0.4)		(0.5)		(0.5)
Amortization of federal investment tax credits	(0.4)		(0.4)		(0.4)		(0.4)



Stock compensation	—		0.1		—		(0.1)

Other	0.2		0.1		0.1		0.2
Effective income tax rate	2.3	%	3.4	%	2.1	%	5.6	%


Evergy Metro

	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Federal statutory income tax	21.0	%	21.0	%	21.0	%	21.0	%
COLI policies	(0.1)		(0.1)		(0.1)		(0.1)
State income taxes	0.6		1.0		0.7		0.9
Flow through depreciation for plant-related differences	(7.8)		(8.4)		(7.8)		(8.3)
Federal tax credits	(0.7)		(0.2)		(0.7)		(0.2)
AFUDC equity	(0.2)		(0.9)		(0.1)		(0.9)
Amortization of federal investment tax credits	(0.8)		(0.8)		(0.8)		(0.8)



Stock compensation	—		—		0.6		0.4
Officer compensation limitation	(0.4)		0.6		0.3		0.6
Other	—		(0.1)		—		(0.2)
Effective income tax rate	11.6	%	12.1	%	13.1	%	12.4	%

ASSET RETIREMENT OBLIGATIONS (Tables)

6 Months Ended

Jun. 30, 2024

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Change in Asset Retirement Obligation

The following table summarizes the change in the Evergy Companies' AROs for the periods ending June 30, 2024 and December 31, 2023.


	Evergy				Evergy Kansas Central				Evergy Metro
	2024		2023		2024		2023		2024		2023
	(millions)
Beginning balance January 1	$	1,203.1	$	1,153.2	$	599.3	$	565.1	$	460.4	$	444.2

Additions	72.8		9.7		44.8		9.7		24.1		—
Revision in timing and/or estimates	—		3.2		—		1.6		—		1.6
Settlements	(7.0)		(21.8)		(4.5)		(9.8)		(2.3)		(8.6)
Accretion	28.4		58.8		16.4		32.7		10.3		23.2
Ending balance	$	1,297.3	$	1,203.1	$	656.0	$	599.3	$	492.5	$	460.4
Less: current portion	(44.9)		(40.3)		(25.9)		(22.2)		(16.6)		(16.0)
Total noncurrent asset retirement obligation	$	1,252.4	$	1,162.8	$	630.1	$	577.1	$	475.9	$	444.4

Derivative Instruments Offsetting Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
FIN 39 Derivative asset netting
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Asset, Current	$ 14.0	$ 12.9
Derivative Asset, Noncurrent	$ 32.3	$ 29.8
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other	Other
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other	Other
Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 95.5	$ 133.0
Commodity contract current
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	50.9	91.3
FIN 39 Derivative asset netting
Gross amounts offset	(36.9)	(78.4)
Commodity contract noncurrent
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	44.6	41.7
FIN 39 Derivative asset netting
Gross amounts offset	(12.3)	(11.9)
Power commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	23.7	23.2
Power commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	40.5	35.7
Natural gas commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	27.2	68.1
Natural gas commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	4.1	6.0
Evergy Kansas Central
FIN 39 Derivative asset netting
Derivative Asset, Current	5.5	11.1
Derivative Asset, Noncurrent	32.3	29.8
Evergy Kansas Central \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	85.2	128.1
Evergy Kansas Central \| Commodity contract current
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	40.6	86.4
FIN 39 Derivative asset netting
Gross amounts offset	(35.1)	(75.3)
Evergy Kansas Central \| Commodity contract noncurrent
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	44.6	41.7
FIN 39 Derivative asset netting
Gross amounts offset	(12.3)	(11.9)
Evergy Kansas Central \| Power commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	13.4	18.3
Evergy Kansas Central \| Power commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	40.5	35.7
Evergy Kansas Central \| Natural gas commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	27.2	68.1
Evergy Kansas Central \| Natural gas commodity contract noncurrent \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	4.1	6.0
Evergy Metro
FIN 39 Derivative asset netting
Derivative Asset, Current	5.6	0.0
Derivative Asset, Noncurrent	0.0	0.0
Evergy Metro \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	6.6	2.1
Evergy Metro \| Commodity contract current
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	6.6	2.1
FIN 39 Derivative asset netting
Gross amounts offset	(1.0)	(2.1)
Evergy Metro \| Commodity contract noncurrent
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
FIN 39 Derivative asset netting
Gross amounts offset	0.0	0.0
Evergy Metro \| Power commodity contract current \| Not Designated as Hedging Instrument [Member]
Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 6.6	$ 2.1

Derivative Instruments and Hedging Activities - Narrative (Details) $ in Millions	Jun. 30, 2024 USD ($)
Derivative, Credit Risk Related Contingent Features [Abstract]
Derivative, Net Liability Position, Aggregate Fair Value	$ 40.0
Credit Derivatives [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	36.5
Additional Collateral, Aggregate Fair Value	37.4
Collateral Already Posted, Aggregate Fair Value	2.5
Credit Derivative, Maximum Exposure, After Master Netting and Collateral	26.7
Evergy Kansas Central
Credit Derivatives [Line Items]
Credit Derivative, Maximum Exposure, Undiscounted	36.5
Additional Collateral, Aggregate Fair Value	37.4
Collateral Already Posted, Aggregate Fair Value	2.5
Credit Derivative, Maximum Exposure, After Master Netting and Collateral	$ 26.7

Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2024	Jul. 31, 2024
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-38515
Entity Registrant Name	EVERGY, INC.
Entity Tax Identification Number	82-2733395
Entity Incorporation, State or Country Code	MO
Entity Address, Address Line One	1200 Main Street
Entity Address, City or Town	Kansas City
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	64105
City Area Code	816
Local Phone Number	556-2200
Title of 12(b) Security	Evergy, Inc. common stock
Trading Symbol	EVRG
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		229,958,436
Entity Central Index Key	0001711269
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Amendment Flag	false
Document Fiscal Year Focus	2024
Evergy Kansas Central
Entity Information [Line Items]
Entity File Number	001-03523
Entity Registrant Name	EVERGY KANSAS CENTRAL, INC.
Entity Tax Identification Number	48-0290150
Entity Incorporation, State or Country Code	KS
Entity Address, Address Line One	818 South Kansas Avenue
Entity Address, City or Town	Topeka
Entity Address, State or Province	KS
Entity Address, Postal Zip Code	66612
City Area Code	785
Local Phone Number	575-6300
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1
Entity Central Index Key	0000054507
Evergy Metro
Entity Information [Line Items]
Entity File Number	000-51873
Entity Registrant Name	EVERGY METRO, INC.
Entity Tax Identification Number	44-0308720
Entity Incorporation, State or Country Code	MO
Entity Address, Address Line One	1200 Main Street
Entity Address, City or Town	Kansas City
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	64105
City Area Code	816
Local Phone Number	556-2200
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		1
Entity Central Index Key	0000054476

PENSION PLANS AND POST-RETIREMENT BENEFITS - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss	$ 0	$ (2,000,000.0)	$ 0	$ (17,900,000)
Contributions by employer			0
Contributions to plans remainder of year	36,800,000		36,800,000
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss		0		0
Contributions by employer			400,000
Contributions to plans remainder of year	200,000		200,000
Evergy Kansas Central \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss	0	200,000	0	600,000
Contributions by employer			0
Contributions to plans remainder of year	9,800,000		9,800,000
Evergy Kansas Central \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss		0		0
Contributions by employer			200,000
Contributions to plans remainder of year	100,000		100,000
Evergy Metro \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss	0	(2,200,000)	0	(18,500,000)
Contributions by employer			0
Contributions to plans remainder of year	27,000,000		27,000,000
Evergy Metro \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Settlement and special termination (gain) loss		$ 0		$ 0
Contributions by employer			200,000
Contributions to plans remainder of year	$ 100,000		$ 100,000
Wolf Creek
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	94.00%		94.00%
Wolf Creek \| Evergy Kansas South Inc
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	47.00%		47.00%
Wolf Creek \| Evergy Metro
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	47.00%		47.00%

Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
OPERATING REVENUES	$ 1,447.5	$ 1,354.2	$ 2,778.5	$ 2,651.0
OPERATING EXPENSES:
Fuel and purchased power	359.0	344.8	735.4	699.0
SPP network transmission costs	100.0	75.4	172.7	156.6
Operating and maintenance	237.7	227.6	469.2	443.9
Depreciation and amortization	280.1	269.4	556.2	532.8
Taxes other than income tax	112.6	100.4	226.7	202.8
Total Operating Expenses	1,089.4	1,017.6	2,160.2	2,035.1
INCOME FROM OPERATIONS	358.1	336.6	618.3	615.9
OTHER INCOME (EXPENSE):
Investment earnings	2.6	6.7	7.9	15.8
Other income	9.8	2.6	18.3	14.8
Other expense	(11.4)	(21.0)	(20.9)	(42.3)
Total Other Income (Expense), Net	1.0	(11.7)	5.3	(11.7)
Interest expense	143.6	133.7	276.8	256.8
INCOME BEFORE INCOME TAXES	215.5	191.2	346.8	347.4
Income tax expense	7.4	10.8	14.7	23.2
Equity in earnings of equity method investees, net of income taxes	2.0	1.8	3.8	3.7
NET INCOME	210.1	182.2	335.9	327.9
Less: Net income attributable to noncontrolling interests	3.1	3.1	6.2	6.2
Net income attributable to Evergy, Inc.	$ 207.0	$ 179.1	$ 329.7	$ 321.7
BASIC AND DILUTED EARNINGS PER AVERAGE COMMON SHARE OUTSTANDING ATTRIBUTABLE TO EVERGY, INC. (see Note 1)
Basic earnings per common share (in dollars per share)	$ 0.90	$ 0.78	$ 1.43	$ 1.40
Diluted earnings per common share (in dollars per share)	$ 0.90	$ 0.78	$ 1.43	$ 1.40
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic (in shares)	230.3	230.1	230.2	230.0
Diluted (in shares)	230.5	230.5	230.5	230.4
COMPREHENSIVE INCOME
NET INCOME	$ 210.1	$ 182.2	$ 335.9	$ 327.9
Derivative hedging activity
Reclassification to expenses, net of tax	1.4	1.3	2.7	2.6
Derivative hedging activity, net of tax	1.4	1.3	2.7	2.6
Defined benefit pension plans
Total other comprehensive income	1.4	1.3	2.7	2.6
COMPREHENSIVE INCOME	211.5	183.5	338.6	330.5
Less: Comprehensive income attributable to noncontrolling interest	3.1	3.1	6.2	6.2
COMPREHENSIVE INCOME	$ 208.4	$ 180.4	$ 332.4	$ 324.3

Consolidated Statements of Income - Evergy Kansas Central, Inc - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
OPERATING REVENUES	$ 1,447.5	$ 1,354.2	$ 2,778.5	$ 2,651.0
OPERATING EXPENSES:
Fuel and purchased power	359.0	344.8	735.4	699.0
SPP network transmission costs	100.0	75.4	172.7	156.6
Operating and maintenance	237.7	227.6	469.2	443.9
Depreciation and amortization	280.1	269.4	556.2	532.8
Taxes other than income tax	112.6	100.4	226.7	202.8
Total Operating Expenses	1,089.4	1,017.6	2,160.2	2,035.1
INCOME FROM OPERATIONS	358.1	336.6	618.3	615.9
OTHER INCOME (EXPENSE):
Investment earnings (loss)	2.6	6.7	7.9	15.8
Other income	9.8	2.6	18.3	14.8
Other expense	(11.4)	(21.0)	(20.9)	(42.3)
Total Other Expense, Net	1.0	(11.7)	5.3	(11.7)
Interest expense	143.6	133.7	276.8	256.8
INCOME BEFORE INCOME TAXES	215.5	191.2	346.8	347.4
Income tax expense	7.4	10.8	14.7	23.2
Equity in earnings of equity method investees, net of income taxes	2.0	1.8	3.8	3.7
NET INCOME	210.1	182.2	335.9	327.9
Less: Net income attributable to noncontrolling interests	3.1	3.1	6.2	6.2
Net income attributable to Evergy, Inc.	207.0	179.1	329.7	321.7
Evergy Kansas Central
OPERATING REVENUES	727.3	639.6	1,420.5	1,318.2
OPERATING EXPENSES:
Fuel and purchased power	124.0	113.8	262.6	258.2
SPP network transmission costs	100.0	75.4	172.7	156.6
Operating and maintenance	117.3	115.6	233.6	223.2
Depreciation and amortization	140.6	128.7	279.7	252.8
Taxes other than income tax	62.7	54.5	125.9	110.2
Total Operating Expenses	544.6	488.0	1,074.5	1,001.0
INCOME FROM OPERATIONS	182.7	151.6	346.0	317.2
OTHER INCOME (EXPENSE):
Investment earnings (loss)	0.4	0.4	1.3	1.7
Other income	7.5	1.1	15.7	10.3
Other expense	(5.8)	(8.7)	(9.5)	(18.6)
Total Other Expense, Net	2.1	(7.2)	7.5	(6.6)
Interest expense	58.2	54.4	114.0	106.8
INCOME BEFORE INCOME TAXES	126.6	90.0	239.5	203.8
Income tax expense	2.9	3.1	5.0	11.5
Equity in earnings of equity method investees, net of income taxes	0.8	1.0	1.6	2.0
NET INCOME	124.5	87.9	236.1	194.3
Less: Net income attributable to noncontrolling interests	3.1	3.1	6.2	6.2
Net income attributable to Evergy, Inc.	$ 121.4	$ 84.8	$ 229.9	$ 188.1

LONG-TERM DEBT - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	May 31, 2024	Apr. 30, 2024	Feb. 28, 2024
Debt Instrument [Line Items]
Interest rate	5.06%
Evergy Metro \| Secured Debt \| MortgageBondsDue2034
Debt Instrument [Line Items]
Long-term debt gross			$ 300.0
Interest rate			5.40%
Evergy Missouri West \| SecuritizedBondsDue2040EMW [Member]
Debt Instrument [Line Items]
Long-term debt gross				$ 331.1
Evergy Missouri West \| Secured Debt \| Mortgage Bonds Due 2034 EMW
Debt Instrument [Line Items]
Long-term debt gross		$ 300.0
Interest rate		5.65%
Evergy Missouri West \| Securitized Bonds \| SecuritizedBondsDue2040EMW [Member]
Debt Instrument [Line Items]
Long-term debt gross				$ 331.1
Interest rate				5.10%

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Due to Related Party, Current	$ (374.3)		$ (374.3)		$ (616.9)
Evergy Metro
Related Party Transaction [Line Items]
Due to Related Party, Current	(148.9)		(148.9)		(272.5)
Evergy Metro \| Evergy Missouri West
Related Party Transaction [Line Items]
Due from Related Party, Current	(74.2)		(74.2)		(91.9)
Evergy Metro \| Evergy Missouri West \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	31.3	$ 30.4	59.5	$ 57.2
Evergy Metro \| Evergy Kansas Central
Related Party Transaction [Line Items]
Due from Related Party, Current	(22.4)		(22.4)		(19.6)
Evergy Metro \| Evergy Kansas Central \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	32.8	31.7	65.2	60.6
Evergy Metro \| Evergy
Related Party Transaction [Line Items]
Due from Related Party, Current	(17.9)		(17.9)		(15.9)
Evergy Metro \| Evergy \| Income Tax Receivable
Related Party Transaction [Line Items]
Due to Related Party, Current	(16.5)		(16.5)		(6.8)
Evergy Metro \| Related Party [Member]
Related Party Transaction [Line Items]
Due from Related Party, Current	(114.5)		(114.5)		(128.5)
Due to Related Party, Current	0.0		0.0		(1.1)
Evergy Metro \| Related Party [Member] \| Evergy Inc Money Pool
Related Party Transaction [Line Items]
Due from Related Party, Current	0.0		0.0		0.0
Due to Related Party, Current	0.0		0.0		0.0
Evergy Kansas Central
Related Party Transaction [Line Items]
Due to Related Party, Current	(191.9)		(191.9)		(244.7)
Evergy Kansas Central \| Evergy Missouri West
Related Party Transaction [Line Items]
Due from Related Party, Current	(17.2)		(17.2)		(11.3)
Evergy Kansas Central \| Evergy Missouri West \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	10.4	9.9	17.5	16.1
Evergy Kansas Central \| Evergy Metro
Related Party Transaction [Line Items]
Due to Related Party, Current	(22.4)		(22.4)		(19.6)
Evergy Kansas Central \| Evergy Metro \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	12.3	$ 12.0	23.6	$ 22.9
Evergy Kansas Central \| Evergy
Related Party Transaction [Line Items]
Due to Related Party, Current	(171.3)		(171.3)		(274.5)
Evergy Kansas Central \| Evergy \| Income Taxes Payable
Related Party Transaction [Line Items]
Due from Related Party, Current					(11.5)
Due to Related Party, Current	(2.9)		(2.9)
Evergy Kansas Central \| Related Party [Member]
Related Party Transaction [Line Items]
Due from Related Party, Current	(17.2)		(17.2)		(11.6)
Due to Related Party, Current	(193.7)		(193.7)		(294.4)
Evergy Kansas Central \| Related Party [Member] \| Evergy Inc Money Pool
Related Party Transaction [Line Items]
Due to Related Party, Current	$ (157.8)		$ (157.8)		$ (261.4)
Jointly Owned Electricity Generation Plant Iatan No 1 And 2 \| Evergy Missouri West
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	18.00%		18.00%
Jeffrey Energy Center \| Evergy Missouri West
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	8.00%		8.00%
La Cygne Station \| Evergy Kansas Central
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	50.00%		50.00%

ASSET RETIREMENT OBLIGATIONS

6 Months Ended

Jun. 30, 2024

Asset Retirement Obligation Disclosure [Abstract]

ASSET RETIREMENT OBLIGATIONS

Asset retirement obligations (AROs) associated with tangible long-lived assets are legal obligations that exist under enacted laws, statutes and written or oral contracts, including obligations arising under the doctrine of promissory estoppel. These liabilities are recognized at estimated fair value as incurred with a corresponding amount capitalized as part of the cost of the related long-lived assets and depreciated over their useful lives. Accretion of the liabilities due to the passage of time is recorded to a regulatory asset and/or liability. Changes in the estimated fair values of the liabilities are recognized when known.

Evergy Kansas Central, Evergy Metro and Evergy Missouri West have AROs related to asbestos abatement and the closure and post-closure care of ponds and landfills containing coal combustion residuals (CCRs). In addition, Evergy Kansas Central and Evergy Metro have AROs related to decommissioning Wolf Creek Generating Station (Wolf Creek) and the retirement of wind generation facilities.

The following table summarizes the change in the Evergy Companies' AROs for the periods ending June 30, 2024 and December 31, 2023.


	Evergy				Evergy Kansas Central				Evergy Metro
	2024		2023		2024		2023		2024		2023
	(millions)
Beginning balance January 1	$	1,203.1	$	1,153.2	$	599.3	$	565.1	$	460.4	$	444.2

Additions	72.8		9.7		44.8		9.7		24.1		—
Revision in timing and/or estimates	—		3.2		—		1.6		—		1.6
Settlements	(7.0)		(21.8)		(4.5)		(9.8)		(2.3)		(8.6)
Accretion	28.4		58.8		16.4		32.7		10.3		23.2
Ending balance	$	1,297.3	$	1,203.1	$	656.0	$	599.3	$	492.5	$	460.4
Less: current portion	(44.9)		(40.3)		(25.9)		(22.2)		(16.6)		(16.0)
Total noncurrent asset retirement obligation	$	1,252.4	$	1,162.8	$	630.1	$	577.1	$	475.9	$	444.4

In the second quarter of 2024, Evergy, Evergy Kansas Central and Evergy Metro recorded $72.8 million, $44.8 million and $24.1 million of ARO liabilities, respectively, related to the new Environmental Protection Agency (EPA) CCR regulation focused on legacy surface impoundments and historic placements of CCR. This regulation expands applicability of the 2015 CCR regulation to inactive landfills and beneficial use sites not previously regulated. Evergy recorded an equal and offsetting regulatory asset for each ARO liability. See Note 12 for additional information regarding the regulation of CCRs.

In the second quarter of 2023, Evergy and Evergy Kansas Central became contractually obligated to retire the wind facilities and remove the foundations at Persimmon Creek Wind Farm 1, LLC (Persimmon Creek) as part of the acquisition, resulting in a $9.7 million increase to their ARO liabilities.

COMMITMENTS AND CONTINGENCIES	6 Months Ended
COMMITMENTS AND CONTINGENCIES	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Environmental Matters Set forth below are descriptions of contingencies related to environmental matters that may impact the Evergy Companies' operations or their financial results. Management's assessment of these contingencies, which are based on federal and state statutes and regulations, and regulatory agency and judicial interpretations and actions, has evolved over time. These laws, regulations, interpretations and actions can also change, restrict or otherwise impact the Evergy Companies' operations or financial results. The failure to comply with these laws, regulations, interpretations and actions could result in the assessment of administrative, civil and criminal penalties and the imposition of remedial requirements. The Evergy Companies believe that all their operations are in substantial compliance with current federal, state and local environmental standards. There are a variety of final and proposed laws and regulations that could have a material adverse effect on the Evergy Companies' operations and consolidated financial results. Due in part to the complex nature of environmental laws and regulations, the Evergy Companies are unable to assess the impact of potential changes that may develop with respect to the environmental contingencies described below. Mercury and Air Toxics Standards (MATS) In April 2024, the EPA finalized a rule to tighten certain aspects of the MATS rule. The EPA is lowering the emission limit for particulate matter (PM), requiring the use of PM continuous emissions monitors (CEMS) and lowering the mercury emission limit for lignite coal-fired electric generating units (EGUs). The Evergy Companies' cost to comply is not expected to be material. Ozone Interstate Transport State Implementation Plans (ITSIP) In 2015, the EPA lowered the Ozone National Ambient Air Quality Standards (NAAQS) from 75 ppb to 70 ppb. Impacted states were required to submit ITSIPs in 2018 to comply with the "Good Neighbor Provision" of the Clean Air Act (CAA). The EPA did not act on these ITSIP submissions by the deadline established in the CAA and entered consent decrees establishing deadlines to take final action on various ITSIPs. In February 2022, the EPA published a proposed rule to disapprove the ITSIPs submitted by nineteen states including Missouri and Oklahoma. In April 2022, the EPA published a final approval of the Kansas ITSIP in the Federal Register. The Missouri Department of Natural Resources (MDNR) submitted a supplemental ITSIP to the EPA in November 2022. In February 2023, the EPA published a final rule disapproving the ITSIPs submitted by nineteen states, including the final disapproval of the Missouri and Oklahoma ITSIPs. In April 2023, the Attorneys General of Missouri and Oklahoma filed Petitions for Review in the U.S. Court of Appeals for the Eighth Circuit (Eighth Circuit) and the U.S. Court of Appeals for the Tenth Circuit (Tenth Circuit), respectively, challenging the EPA's disapproval. In May 2023, the Eighth Circuit granted a stay of the EPA's disapproval of the Missouri ITSIP. Similarly, in July 2023, the Tenth Circuit granted a stay of the EPA's disapproval of the Oklahoma ITSIP. In July 2024, the EPA signed a proposed rule to disapprove the supplemental ITSIP that Missouri submitted in November 2022. Due to uncertainty regarding the stays of the EPA's disapprovals of the Missouri and Oklahoma ITSIPs, the Evergy Companies are unable to accurately assess the impact on their operations or consolidated financial results, but the cost to comply could be material. In January 2024, the EPA proposed to disapprove the ITSIP for Kansas and four other states. The Kansas ITSIP was previously approved in April 2022. The impact of the EPA's disapproval of the Kansas ITSIP could have a material impact on the Evergy Companies' operations. Ozone Interstate Transport Federal Implementation Plans (ITFIP) In April 2022, the EPA published in the Federal Register the proposed ITFIP to resolve outstanding "Good Neighbor" obligations with respect to the 2015 Ozone NAAQS for twenty-six states including Missouri and Oklahoma. This ITFIP would establish a revised Cross-State Air Pollution Rule (CSAPR) ozone season nitrogen oxide (NOx) emissions trading program for EGUs beginning in 2023 and would limit ozone season NOx emissions from certain industrial stationary sources beginning in 2026. The proposed rule would also establish a new daily backstop NOx emissions rate limit for applicable coal-fired units larger than 100 MW, as well as unit-specific NOx emission rate limits for certain industrial emission units and would feature "dynamic" adjustments of emission budgets for EGUs beginning with ozone season 2025. The proposed ITFIP included reductions to the state ozone season NOx budgets for Missouri and Oklahoma beginning in 2023 with additional reductions in future years. The Evergy Companies provided formal comments as part of the rulemaking process. In March 2023, the EPA issued the final ITFIPs for twenty-three states, including Missouri and Oklahoma, which included reduced ozone season NOx budgets for EGUs in Missouri, Oklahoma and other states, and included other features and requirements that were in the proposed version of the rule. Because the EPA's authority to impose an ITFIP for a state is triggered by the state's failure to submit an ITSIP addressing NAAQS by the statutory deadline or disapproval of an ITSIP, the EPA lacks authority under the Clean Air Act to impose an ITFIP on a state for which state implementation plan (SIP) disapprovals have been stayed by the courts. Accordingly, the EPA issued interim final rules staying the effectiveness of the ITFIP in both Missouri and Oklahoma while the stays issued by the Eighth and Tenth Circuits in the ITSIP disapproval cases remain in place. During this time, both states will continue to operate under the existing CSAPR program. While Kansas was not originally included in the ITFIP, in January 2024, the EPA issued a proposal to include Kansas in the ITFIP. If finalized, the ITFIP for Kansas would become effective for the 2025 ozone season beginning in May 2025. In June 2024, the United States Supreme Court issued an order granting emergency motions for stay filed by state and industry petitioners of the final ITFIP pending further review of the ITFIP by the U.S. Court of Appeals for the D.C. Circuit (D.C. Circuit). Missouri, Kansas and Oklahoma are not named petitioners; therefore, the Evergy Companies are awaiting further guidance from the EPA regarding the status of the final ITFIP for Missouri and Oklahoma as well as the proposed ITFIP for Kansas. If the ITFIP ultimately takes effect for Missouri, Kansas and Oklahoma following the pending litigation, the impact on the Evergy Companies' operations and the cost to comply could be material. Particulate Matter National Ambient Air Quality Standards In March 2024, the EPA published in the Federal Register the final rule which strengthens the primary annual PM2.5 (particulate matter less than 2.5 microns in diameter) NAAQS. The EPA is lowering the primary annual PM2.5 NAAQS from 12.0 µg/m3 (micrograms per cubic meter) to 9.0 µg/m3. The final rule took effect in May 2024. The Evergy Companies are in the process of reviewing this final rule, however, due to uncertainty regarding the long-term implementation of this final rule, the Evergy Companies are unable to accurately assess the impacts on their operations or consolidated financial results, but the cost to comply with lower PM2.5 NAAQS could be material. Regional Haze Rule In 1999, the EPA finalized the Regional Haze Rule which aims to restore national parks and wilderness areas to pristine conditions. The rule requires states in coordination with the EPA, the National Park Service, the U.S. Fish and Wildlife Service, the U.S. Forest Service, and other interested parties to develop and implement air quality protection plans to reduce the pollution that causes visibility impairment. There are 156 "Class I" areas across the U.S. that must be restored to pristine conditions by the year 2064. There are no Class I areas in Kansas, whereas Missouri has two: the Hercules-Glades Wilderness Area and the Mingo Wilderness Area. States must submit revisions to their Regional Haze Rule SIPs every ten years and the first round was due in 2007. For the second ten-year implementation period, the EPA issued a final rule revision in 2017 that allowed states to submit their SIP revisions by July 2021. The Missouri SIP revision does not require any additional reductions from the Evergy Companies' generating units in the state. MDNR submitted the Missouri SIP revision to the EPA in August 2022, however, they failed to do so by the EPA's revised submittal deadline in August 2022. As a result, in August 2022, the EPA published "finding of failure" with respect to Missouri and fourteen other states for failing to submit their Regional Haze SIP revisions by the applicable deadline. This finding of failure established a two-year deadline for the EPA to issue a Regional Haze federal implementation plan (FIP) for each state unless the state submits and the EPA approves a revised SIP that meets all applicable requirements before the EPA issues the FIP. In July 2024, the EPA published in the Federal Register a proposal to partially approve and partially disapprove Missouri's Regional Haze SIP revision. The Kansas SIP revision requested no additional emission reductions by electric utilities based on the significant reductions that were achieved during the first implementation period. The Kansas Department of Health and Environment (KDHE) submitted the Kansas SIP revision in July 2021. In January 2024, the EPA issued a proposal to disapprove the Kansas SIP revision for failing to conduct a four-factor analysis for at least two emission sources in Kansas. If a Kansas generating unit of the Evergy Companies is selected for analysis, the possibility exists that the state or the EPA, through a revised SIP or a FIP, could determine that additional operational or physical modifications are required on the generating unit to further reduce emissions. In June 2024, the EPA entered into a consent decree to resolve a suit filed by several environmental organizations for the EPA's nation-wide failure to take final action to approve or disapprove Regional Haze SIP revisions. If finalized, the overall costs of implementing these proposed rules could be material to the Evergy Companies. Greenhouse Gases Burning coal and other fossil fuels releases carbon dioxide (CO2) and other gases referred to as greenhouse gases (GHG). Various regulations under the CAA limit CO2 and other GHG emissions, and in addition, other measures are being imposed or offered by individual states, municipalities and regional agreements with the goal of reducing GHG emissions. In April 2024, the EPA finalized the GHG regulations and GHG guidelines that apply to new and existing fossil fuel fired EGUs. The final GHG regulation establishes CO2 limitations on emissions from new and reconstructed stationary combustion turbines. The GHG guidelines set CO2 emission limitations for existing coal, oil and gas-fired steam generating units. For new and reconstructed stationary combustion turbines, the emission limitations were developed by applying the Best System of Emission Reduction (BSER) to three distinct subcategories (low load, intermediate load and base load) taking into consideration the annual capacity factor of the stationary combustion turbine. For intermediate and base load stationary combustion turbines, BSER is assumed to be the utilization of highly efficient combustion turbine technology. Base load stationary combustion turbines are also required to consider the emissions reduction associated with the application of carbon capture and sequestration (CCS) beginning in 2032. For existing coal-fired EGUs, the emission limitations were established by applying the BSER to two subcategories (medium and long-term). For medium-term existing coal-fired units, which are units retiring between 2032 and 2038, the BSER established emission limitation is based on co-firing natural gas beginning in 2030. For units operating in 2039 and after, BSER is the application of CCS starting in 2032. In July 2024, the D.C. Circuit denied motions of stay filed by various states, industry and trade organizations; however, the D.C. Circuit has ordered expedited review of the challenges to the final regulations and guidelines. The Evergy Companies are in the process of reviewing the final GHG regulation and guidelines however, due to uncertainty regarding the implementation of these final rules and ongoing judicial review, the Evergy Companies are unable to accurately assess the impacts on their operations or consolidated financial results, but the cost to comply could be material. Water The Evergy Companies discharge some of the water used in generation and other operations containing substances deemed to be pollutants. In April 2024, the EPA finalized an update to the Effluent Limitation Guidelines (ELG) for steam electric power generating facilities to address the vacated limitations and prior reviews of the existing rule by the current administration. Flue Gas Desulfurization (FGD) wastewater, bottom ash transport wastewater (BATW), coal residual leachate (CRL), and legacy wastewater are addressed in the rulemaking. FGD, BATW and CRL at operating facilities are required to achieve zero liquid discharge as soon as feasible and no later than December 2029. The Evergy Companies have reviewed the modifications to limitations on FGD wastewater and bottom ash transport water and the Evergy Companies do not believe the impact to be material. The Evergy Companies are reviewing the limitations on CRL, its impact on their operations and financial results and believe the cost to comply will not be material. In June 2024, multiple legal challenges to the ELG were consolidated in the Eighth Circuit that could impact the timing or cost to comply. Regulation of CCRs In the course of operating their coal generation plants, the Evergy Companies produce CCRs, including fly ash, gypsum and bottom ash. The EPA published a rule to regulate CCRs in April 2015 that requires additional CCR handling, processing and storage equipment and closure of certain ash disposal units. In January 2022, the EPA published proposed determinations for facilities that filed closure extensions for unlined or clay-lined CCR units. These proposed determinations include various interpretations of the CCR regulations and compliance expectations that may impact all owners of CCR units. These interpretations could require modified compliance plans such as different methods of CCR unit closure. Additionally, more stringent remediation requirements for units that are in corrective action or forced to go into corrective action are possible. In April 2022, the Utility Solid Waste Activities Group (USWAG) and other interested parties filed similar petitions in the D.C. Circuit challenging the EPA's legal positions regarding the CCR rule determinations proposed in January 2022. In June 2024, the D.C. Circuit dismissed these cases for lack of jurisdiction. Additional legal challenges on issues associated with the January 2022 determinations are expected. The cost to comply with these proposed determinations by the EPA could be material. In April 2024, the EPA finalized an expansion to the CCR regulations focused on legacy surface impoundments and historic placements of CCR. This regulation expands applicability of the 2015 CCR regulation to inactive landfills and beneficial use sites not previously regulated. The Evergy Companies have recorded AROs for their current estimates for the closure of ash disposal ponds and landfills and recorded additional ARO liabilities in the second quarter of 2024 related to the April 2024 CCR regulation. See Note 6 for additional information on AROs. The revision of these AROs may be required in the future due to information collected in the April 2024 CCR regulation's Facility Evaluation Reports (FERs), changes in existing CCR regulations, the results of groundwater monitoring of CCR units or changes in interpretation of existing CCR regulations or changes in the timing or cost to close ash disposal ponds and landfills. The revision of AROs for regulated operations has no income statement impact due to the deferral of the adjustments through a regulatory asset. If revisions to these AROs are necessary, the impact on the Evergy Companies' operations or consolidated financial results could be material.

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Tables)

6 Months Ended

Jun. 30, 2024

The operating expenses and capital costs billed for jointly-owned plants and shared services are detailed in the following table.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
	(millions)
Evergy Kansas Central billings to Evergy Missouri West	$	10.4	$	9.9	$	17.5	$	16.1
Evergy Metro billings to Evergy Missouri West	31.3		30.4		59.5		57.2
Evergy Kansas Central billings to Evergy Metro	12.3		12.0		23.6		22.9
Evergy Metro billings to Evergy Kansas Central	32.8		31.7		65.2		60.6

The following table summarizes Evergy Kansas Central's and Evergy Metro's related party net receivables and payables.



	June 30		December 31
	2024		2023
Evergy Kansas Central	(millions)
Net payable to Evergy	$	(171.3)	$	(274.5)
Net payable to Evergy Metro	(22.4)		(19.6)
Net receivable from Evergy Missouri West	17.2		11.3

Evergy Metro
Net receivable from Evergy	$	17.9	$	15.9
Net receivable from Evergy Kansas Central	22.4		19.6
Net receivable from Evergy Missouri West	74.2		91.9

The following table summarizes Evergy Kansas Central's and Evergy Metro's income taxes receivable from (payable to) Evergy.



	June 30		December 31
	2024		2023
Evergy Kansas Central	(millions)
Income taxes receivable from (payable to) Evergy	$	(2.9)	$	11.5

Evergy Metro
Income taxes payable to Evergy	$	(16.5)	$	(6.8)

ORGANIZATION AND BASIS OF PRESENTATION - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Aug. 08, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)		$ 0.6425	$ 0.6425	$ 0.6125	$ 0.6125
Subsequent Event \| Evergy Kansas Central
Dividends Payable [Line Items]
Dividends payable	$ 135.0
Subsequent Event \| Evergy Metro
Dividends Payable [Line Items]
Dividends payable	$ 110.0
Common Stock \| Subsequent Event
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)	$ 0.6425

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

RECEIVABLES (Tables)

6 Months Ended

Jun. 30, 2024

Receivables [Abstract]

Schedule of Receivables

The Evergy Companies' receivables are detailed in the following table.



	June 30		December 31
	2024		2023
Evergy	(millions)
Customer accounts receivable - billed	$	7.4	$	2.6
Customer accounts receivable - unbilled	279.5		109.1
Other receivables	160.4		169.4
Allowance for credit losses	(18.0)		(24.2)
Total	$	429.3	$	256.9
Evergy Kansas Central
Customer accounts receivable - billed	$	—	$	—
Customer accounts receivable - unbilled	112.4		39.9
Other receivables	134.4		143.5
Allowance for credit losses	(8.8)		(11.6)
Total	$	238.0	$	171.8
Evergy Metro
Customer accounts receivable - billed	$	—	$	—
Customer accounts receivable - unbilled	93.2		27.2
Other receivables	36.1		35.7
Allowance for credit losses	(6.3)		(7.9)
Total	$	123.0	$	55.0

The Evergy Companies' other receivables also included receivables from contracts with customers as summarized in the following table.


	June 30		December 31

	2024		2023
	(millions)
Evergy	$	85.1	$	61.5
Evergy Kansas Central	76.4		59.9
Evergy Metro	7.4		0.8

The Evergy Companies' accounts receivable pledged as collateral and the corresponding short-term collateralized note payable are summarized in the following table.


	June 30		December 31

	2024		2023
	(millions)
Evergy	$	329.0	$	342.0
Evergy Kansas Central	169.0		166.0
Evergy Metro	110.0		126.0

Summary of Bad Debt Expense

The change in the Evergy Companies' allowance for credit losses is summarized in the following table.


	2024		2023
Evergy	(millions)
Beginning balance January 1	$	24.2	$	31.4
Credit loss expense	2.0		0.6
Write-offs	(14.6)		(15.0)
Recoveries of prior write-offs	6.4		5.6
Ending balance June 30	$	18.0	$	22.6
Evergy Kansas Central
Beginning balance January 1	$	11.6	$	16.9
Credit loss expense (income)	1.4		(0.2)
Write-offs	(7.1)		(8.0)
Recoveries of prior write-offs	2.9		2.4
Ending balance June 30	$	8.8	$	11.1
Evergy Metro
Beginning balance January 1	$	7.9	$	9.3
Credit loss expense	1.1		0.6
Write-offs	(5.1)		(4.7)
Recoveries of prior write-offs	2.4		2.1
Ending balance June 30	$	6.3	$	7.3

ORGANIZATION AND BASIS OF PRESENTATION - Fuel Inventory and Supplies (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Inventory [Line Items]
Fuel inventory	$ 247.9	$ 257.3
Supplies	558.8	518.9
Fuel inventory and supplies	806.7	776.2
Evergy Kansas Central
Inventory [Line Items]
Fuel inventory	139.7	138.6
Supplies	291.1	273.3
Fuel inventory and supplies	430.8	411.9
Evergy Metro
Inventory [Line Items]
Fuel inventory	71.5	81.5
Supplies	198.4	183.1
Fuel inventory and supplies	$ 269.9	$ 264.6

Consolidated Balance Sheets - Evergy Metro, Inc - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 26.1	$ 27.7
Receivables, net of allowance for credit losses of $6.3 and $7.9, respectively	429.3	256.9
Accounts receivable pledged as collateral	329.0	342.0
Fuel inventory and supplies	806.7	776.2
Income taxes receivable	0.0	11.5
Regulatory assets	252.0	292.1
Other	47.6	31.4
Total Current Assets	1,964.0	1,789.1
Property, plant and equipment, net	24,301.4	23,728.7
OTHER ASSETS:
Regulatory assets	1,843.5	1,795.3
Nuclear decommissioning trust	827.7	766.4
Other	557.8	560.0
Total Other Assets	5,565.6	5,458.3
TOTAL ASSETS	31,831.0	30,976.1
CURRENT LIABILITIES:
Current maturities of long-term debt	819.5	800.0
Commercial paper	969.7	951.8
Collateralized note payable	329.0	342.0
Accounts payable	374.3	616.9
Accrued taxes	234.8	156.7
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	117.1	134.2
Regulatory liabilities	143.5	183.0
Asset retirement obligations	44.9	40.3
Accrued compensation and benefits	58.3	74.5
Other	219.7	213.2
Total Current Liabilities	3,310.8	3,512.6
LONG-TERM LIABILITIES:
Long-term debt, net	11,954.6	11,053.3
Deferred income taxes	2,146.1	2,097.9
Unamortized investment tax credits	166.4	170.0
Regulatory liabilities	2,486.7	2,542.5
Pension and post-retirement liability	486.6	464.1
Asset retirement obligations	1,252.4	1,162.8
Other	295.7	287.9
Total Long-Term Liabilities	18,788.5	17,778.5
Commitments and Contingencies (Note $12)
EQUITY:
Common stock	7,239.2	7,234.9
Retained earnings	2,491.3	2,457.8
Accumulated other comprehensive loss	(26.9)	(29.6)
Total Evergy, Inc. Shareholders' Equity	9,703.6	9,663.1
TOTAL LIABILITIES AND EQUITY	31,831.0	30,976.1
Evergy Metro
CURRENT ASSETS:
Cash and cash equivalents	2.6	3.3
Receivables, net of allowance for credit losses of $6.3 and $7.9, respectively	123.0	55.0
Accounts receivable pledged as collateral	110.0	126.0
Fuel inventory and supplies	269.9	264.6
Regulatory assets	52.0	53.2
Prepaid expenses	28.1	20.9
Other	22.3	14.7
Total Current Assets	722.4	666.2
Property, plant and equipment, net	8,205.8	8,131.2
OTHER ASSETS:
Regulatory assets	423.4	380.8
Nuclear decommissioning trust	440.1	401.3
Other	83.8	77.0
Total Other Assets	947.3	859.1
TOTAL ASSETS	9,875.5	9,656.5
CURRENT LIABILITIES:
Commercial paper	264.3	423.3
Collateralized note payable	110.0	126.0
Accounts payable	148.9	272.5
Accrued taxes	94.8	45.7
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	30.3	27.4
Regulatory liabilities	34.1	43.0
Asset retirement obligations	16.6	16.0
Accrued compensation and benefits	27.4	36.9
Other	60.8	58.3
Total Current Liabilities	787.2	1,050.2
LONG-TERM LIABILITIES:
Long-term debt, net	3,222.5	2,924.4
Deferred income taxes	823.4	797.2
Unamortized investment tax credits	109.7	111.3
Regulatory liabilities	866.4	860.2
Pension and post-retirement liability	203.3	190.8
Asset retirement obligations	475.9	444.4
Other	87.0	85.0
Total Long-Term Liabilities	5,788.2	5,413.3
Commitments and Contingencies (Note $12)
EQUITY:
Common stock	1,563.1	1,563.1
Retained earnings	1,733.5	1,626.2
Accumulated other comprehensive loss	3.5	3.7
Total Evergy, Inc. Shareholders' Equity	3,300.1	3,193.0
TOTAL LIABILITIES AND EQUITY	9,875.5	9,656.5
Related Party [Member] \| Evergy Metro
CURRENT ASSETS:
Related party receivables	114.5	128.5
CURRENT LIABILITIES:
Accounts payable	$ 0.0	$ 1.1

TAXES - Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 0.7	$ 5.6	$ 10.9	$ 10.6
Current State and Local Tax Expense (Benefit)	9.2	7.2	17.3	11.9
Current Income Tax Expense (Benefit), Total	9.9	12.8	28.2	22.5
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	6.7	5.5	4.2	13.2
Deferred State and Local Income Tax Expense (Benefit)	(7.4)	(5.6)	(14.1)	(8.9)
Deferred Income Tax Expense (Benefit), Total	(0.7)	(0.1)	(9.9)	4.3
Investment Tax Credits
Investment tax credit amortization	(1.8)	(1.9)	(3.6)	(3.6)
Income Tax Expense (Benefit), Total	$ 7.4	$ 10.8	$ 14.7	$ 23.2
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%	21.00%
Effect Of [Abstract]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent	(1.20%)	(1.30%)	(1.20%)	(1.30%)
State income taxes	0.50%	0.00%	0.50%	0.20%
Flow through depreciation for plant-related differences	(8.70%)	(7.10%)	(8.60%)	(7.40%)
Federal tax credits	(6.80%)	(6.30%)	(6.70%)	(5.00%)
Non-controlling interest	(0.30%)	(0.30%)	(0.30%)	(0.30%)
AFUDC equity	(0.40%)	(0.60%)	(0.30%)	(0.60%)
Amortization of federal investment tax credits	(0.60%)	(0.60%)	(0.60%)	(0.60%)
Valuation allowance	0.00%	0.40%	0.00%	0.20%
Officer compensation limitation	(0.30%)	0.20%	0.10%	0.20%
Other	0.20%	0.20%	0.30%	0.20%
Effective Income Tax Rate Reconciliation, Percent, Total	3.40%	5.60%	4.20%	6.60%
Evergy Kansas Central
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 10.2	$ 3.4	$ 14.5	$ 21.5
Current State and Local Tax Expense (Benefit)	4.2	2.9	7.3	4.9
Current Income Tax Expense (Benefit), Total	14.4	6.3	21.8	26.4
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	(7.7)	(0.7)	(10.2)	(10.7)
Deferred State and Local Income Tax Expense (Benefit)	(2.9)	(1.6)	(4.7)	(2.3)
Deferred Income Tax Expense (Benefit), Total	(10.6)	(2.3)	(14.9)	(13.0)
Investment Tax Credits
Investment tax credit amortization	(0.9)	(0.9)	(1.9)	(1.9)
Income Tax Expense (Benefit), Total	$ 2.9	$ 3.1	$ 5.0	$ 11.5
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%	21.00%
Effect Of [Abstract]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent	(1.90%)	(2.30%)	(1.90%)	(2.40%)
State income taxes	0.60%	0.70%	0.60%	0.70%
Flow through depreciation for plant-related differences	(5.80%)	(2.60%)	(5.60%)	(3.40%)
Federal tax credits	(10.50%)	(12.30%)	(10.70%)	(9.00%)
Non-controlling interest	(0.40%)	(0.50%)	(0.50%)	(0.50%)
AFUDC equity	(0.50%)	(0.40%)	(0.50%)	(0.50%)
Amortization of federal investment tax credits	(0.40%)	(0.40%)	(0.40%)	(0.40%)
Stock compensation	0.00%	0.10%	0.00%	(0.10%)
Other	0.20%	0.10%	0.10%	0.20%
Effective Income Tax Rate Reconciliation, Percent, Total	2.30%	3.40%	2.10%	5.60%
Evergy Metro
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	$ 3.9	$ 3.3	$ 5.9	$ (1.8)
Current State and Local Tax Expense (Benefit)	3.9	3.6	7.2	5.2
Current Income Tax Expense (Benefit), Total	7.8	6.9	13.1	3.4
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	6.0	8.1	10.8	20.5
Deferred State and Local Income Tax Expense (Benefit)	(3.3)	(2.4)	(6.2)	(3.6)
Deferred Income Tax Expense (Benefit), Total	2.7	5.7	4.6	16.9
Investment Tax Credits
Investment tax credit amortization	(0.8)	(0.9)	(1.6)	(1.7)
Income Tax Expense (Benefit), Total	$ 9.7	$ 11.7	$ 16.1	$ 18.6
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%	21.00%
Effect Of [Abstract]
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent	(0.10%)	(0.10%)	(0.10%)	(0.10%)
State income taxes	0.60%	1.00%	0.70%	0.90%
Flow through depreciation for plant-related differences	(7.80%)	(8.40%)	(7.80%)	(8.30%)
Federal tax credits	(0.70%)	(0.20%)	(0.70%)	(0.20%)
AFUDC equity	(0.20%)	(0.90%)	(0.10%)	(0.90%)
Amortization of federal investment tax credits	(0.80%)	(0.80%)	(0.80%)	(0.80%)
Stock compensation	0.00%	0.00%	0.60%	0.40%
Officer compensation limitation	(0.40%)	0.60%	0.30%	0.60%
Other	0.00%	(0.10%)	0.00%	(0.20%)
Effective Income Tax Rate Reconciliation, Percent, Total	11.60%	12.10%	13.10%	12.40%

Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Common Stock	Retained earnings	AOCI	Non-controlling interests
Beginning balance (in shares) at Dec. 31, 2022		229,546,105
Beginning balance at Dec. 31, 2022	$ 9,493.3	$ 7,219.7	$ 2,298.5	$ (34.5)	$ 9.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	145.7		142.6		3.1
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		130,594
Issuance of stock, net issuance costs	(2.4)	$ (2.4)
Dividends declared on common stock	(140.7)		(140.7)
Dividend equivalents declared	(0.4)		(0.4)
Stock compensation expense	4.7	4.7
Unearned compensation
Compensation expense recognized	0.1	0.1
Derivative hedging activity, net of tax	1.3			1.3
Other	0.1	$ 0.1
Ending balance (in shares) at Mar. 31, 2023		229,676,699
Ending balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	(33.2)	12.7
Beginning balance (in shares) at Dec. 31, 2022		229,546,105
Beginning balance at Dec. 31, 2022	9,493.3	$ 7,219.7	2,298.5	(34.5)	9.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	327.9
Unearned compensation
Derivative hedging activity, net of tax	2.6
Ending balance (in shares) at Jun. 30, 2023		229,701,709
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	(31.9)	15.8
Beginning balance (in shares) at Mar. 31, 2023		229,676,699
Beginning balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	(33.2)	12.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	182.2		179.1		3.1
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		25,010
Issuance of stock, net issuance costs	0.0	$ 0.0
Dividends declared on common stock	(140.7)		(140.7)
Dividend equivalents declared	(0.6)		(0.6)
Stock compensation expense	6.6	6.6
Unearned compensation
Compensation expense recognized	0.1	0.1
Derivative hedging activity, net of tax	1.3			1.3
Other	0.1	$ 0.1
Ending balance (in shares) at Jun. 30, 2023		229,701,709
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	(31.9)	15.8
Beginning balance (in shares) at Dec. 31, 2023		229,729,296
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	(29.6)	21.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	125.8		122.7		3.1
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		193,042
Issuance of stock, net issuance costs	(4.0)	$ (4.0)
Dividends declared on common stock	(147.7)		(147.7)
Dividend equivalents declared	(0.4)		(0.4)
Stock compensation expense	3.9	3.9
Unearned compensation
Derivative hedging activity, net of tax	1.3			1.3
Other	0.2	$ 0.2
Ending balance (in shares) at Mar. 31, 2024		229,922,338
Ending balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	(28.3)	25.0
Beginning balance (in shares) at Dec. 31, 2023		229,729,296
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	(29.6)	21.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	335.9
Unearned compensation
Derivative hedging activity, net of tax	2.7
Ending balance (in shares) at Jun. 30, 2024		229,954,524
Ending balance at Jun. 30, 2024	9,731.7	$ 7,239.2	2,491.3	(26.9)	28.1
Beginning balance (in shares) at Mar. 31, 2024		229,922,338
Beginning balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	(28.3)	25.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	210.1		207.0		3.1
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		32,186
Issuance of stock, net issuance costs	(0.1)	$ (0.1)
Dividends declared on common stock	(147.7)		(147.7)
Dividend equivalents declared	(0.4)		(0.4)
Stock compensation expense	4.2	4.2
Unearned compensation
Derivative hedging activity, net of tax	1.4			1.4
Other	0.1	$ 0.1
Ending balance (in shares) at Jun. 30, 2024		229,954,524
Ending balance at Jun. 30, 2024	$ 9,731.7	$ 7,239.2	$ 2,491.3	$ (26.9)	$ 28.1

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Schedule of Short Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Master Credit Facility	$ 2,500.0	$ 2,500.0
Available Borrowings	1,527.6	1,546.5
Evergy, Inc.
Short-term Debt [Line Items]
Master Credit Facility	200.0	300.0
Available Borrowings	$ 199.3	$ 299.3
Weighted Average Interest Rate on Short-Term Borrowings	0.00%	0.00%
Evergy Kansas Central
Short-term Debt [Line Items]
Master Credit Facility	$ 750.0	$ 750.0
Available Borrowings	$ 153.4	$ 518.6
Weighted Average Interest Rate on Short-Term Borrowings	5.53%	5.56%
Evergy Metro
Short-term Debt [Line Items]
Master Credit Facility	$ 850.0	$ 750.0
Available Borrowings	$ 584.7	$ 326.7
Weighted Average Interest Rate on Short-Term Borrowings	5.50%	5.58%
Evergy Missouri West
Short-term Debt [Line Items]
Master Credit Facility	$ 700.0	$ 700.0
Available Borrowings	$ 590.2	$ 401.9
Weighted Average Interest Rate on Short-Term Borrowings	5.49%	5.66%
Commercial Paper
Short-term Debt [Line Items]
Line of credit	$ 969.7	$ 951.8
Commercial Paper \| Evergy, Inc.
Short-term Debt [Line Items]
Line of credit	0.0	0.0
Commercial Paper \| Evergy Kansas Central
Short-term Debt [Line Items]
Line of credit	595.6	230.4
Commercial Paper \| Evergy Metro
Short-term Debt [Line Items]
Line of credit	264.3	423.3
Commercial Paper \| Evergy Missouri West
Short-term Debt [Line Items]
Line of credit	109.8	298.1
Letters of Credit
Short-term Debt [Line Items]
Letters of Credit	2.7	1.7
Letters of Credit \| Evergy, Inc.
Short-term Debt [Line Items]
Letters of Credit	0.7	0.7
Letters of Credit \| Evergy Kansas Central
Short-term Debt [Line Items]
Letters of Credit	1.0	1.0
Letters of Credit \| Evergy Metro
Short-term Debt [Line Items]
Letters of Credit	1.0	0.0
Letters of Credit \| Evergy Missouri West
Short-term Debt [Line Items]
Letters of Credit	0.0	0.0
Cash Borrowings
Short-term Debt [Line Items]
Line of credit	0.0	0.0
Cash Borrowings \| Evergy, Inc.
Short-term Debt [Line Items]
Line of credit	0.0	0.0
Cash Borrowings \| Evergy Kansas Central
Short-term Debt [Line Items]
Line of credit	0.0	0.0
Cash Borrowings \| Evergy Metro
Short-term Debt [Line Items]
Line of credit	0.0	0.0
Cash Borrowings \| Evergy Missouri West
Short-term Debt [Line Items]
Line of credit	$ 0.0	$ 0.0

ORGANIZATION AND BASIS OF PRESENTATION (Policies)

6 Months Ended

Jun. 30, 2024

Accounting Policies [Abstract]

Basis of Presentation

Principles of Consolidation

Cash and Cash Equivalents

Cash, Cash Equivalents and Restricted Cash


	June 30 2024		December 31 2023
Evergy	(millions)
Current assets
Cash and cash equivalents	$	26.1	$	27.7
Other	7.7		—
Other assets
Other	1.7		—
Total cash, cash equivalents and restricted cash	$	35.5	$	27.7

Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost.

Earnings Per Share

- Definition

Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.

+ References + Details

LONG-TERM DEBT	6 Months Ended
LONG-TERM DEBT	Jun. 30, 2024
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT Mortgage Bonds In April 2024, Evergy Metro issued, at a discount, $300.0 million of 5.40% Mortgage Bonds, maturing in 2034. Proceeds were used to pay down commercial paper and for general corporate purposes. In May 2024, Evergy Missouri West issued, at a discount, $300.0 million of 5.65% First Mortgage Bonds (FMBs), maturing in 2034. Proceeds were used to pay down commercial paper and for general corporate purposes. Securitized Bonds In 2022, Evergy Missouri West created a special purpose subsidiary, Evergy Missouri West Storm Funding, a wholly-owned, bankruptcy remote entity solely for the purpose of recovering extraordinary fuel and purchased power costs incurred as part of the February 2021 winter weather event. In February 2024, Evergy Missouri West Storm Funding issued, at a discount, $331.1 million of 5.10% Securitized Utility Tariff Bonds (Securitized Bonds) with a final payment scheduled for 2038, maturing in 2040. The obligations of Evergy Missouri West Storm Funding's Securitized Bonds are repaid through charges imposed on customers in Evergy Missouri West's service territory. Creditors of Evergy Missouri West have no recourse to any assets or revenues of Evergy Missouri West Storm Funding, and the bondholders have no recourse to the general credit of Evergy Missouri West. See Note 4 for additional information regarding the February 2021 winter weather event securitization.

GOODWILL	6 Months Ended
GOODWILL	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL	GOODWILL GAAP requires goodwill to be tested for impairment annually and when an event occurs indicating the possibility that an impairment exists. Evergy's impairment test for the $2,336.6 million of goodwill that was recorded as a result of the Great Plains Energy, Inc. (Great Plains Energy) and Evergy Kansas Central merger was conducted as of May 1, 2024. The goodwill impairment test consists of comparing the fair value of a reporting unit to its carrying amount, including goodwill, to identify potential impairment. In the event that the carrying amount exceeds the fair value of the reporting unit, an impairment loss is recognized for the difference between the carrying amount of the reporting unit and its fair value. Evergy's consolidated operations are considered one reporting unit for assessment of impairment, as management assesses financial performance and allocates resources on a consolidated basis. The determination of fair value of the reporting unit consisted of two valuation techniques: an income approach consisting of a discounted cash flow analysis and a market approach consisting of a determination of reporting unit invested capital using a market multiple derived from the historical earnings before interest, income taxes, depreciation and amortization and market prices of the stock of peer companies. The results of the two techniques were evaluated and weighted to determine a point within the range that management considered representative of fair value for the reporting unit. The fair value of the reporting unit exceeded the carrying amount, including goodwill. As a result, there was no impairment of goodwill.

RECEIVABLES - Pledged as Collateral (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 329.0	$ 342.0
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	169.0	166.0
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 110.0	$ 126.0

REVENUE

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

REVENUE

Evergy's, Evergy Kansas Central's and Evergy Metro's revenues disaggregated by customer class are summarized in the following tables.


Evergy
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	536.7	$	492.7	$	1,015.7	$	951.3
Commercial	485.8		460.7		918.5		890.7
Industrial	174.7		157.3		335.1		316.4
Other retail	10.2		8.9		22.1		20.2
Total electric retail	$	1,207.4	$	1,119.6	$	2,291.4	$	2,178.6
Wholesale	73.3		83.1		144.3		153.5
Transmission	122.4		100.5		237.8		206.3
Industrial steam and other	4.0		5.8		14.2		17.5
Total revenue from contracts with customers	$	1,407.1	$	1,309.0	$	2,687.7	$	2,555.9
Other	40.4		45.2		90.8		95.1
Operating revenues	$	1,447.5	$	1,354.2	$	2,778.5	$	2,651.0


Evergy Kansas Central
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	233.7	$	192.3	$	448.0	$	384.4
Commercial	208.3		180.7		391.9		358.8
Industrial	114.2		98.2		220.2		206.7
Other retail	6.0		2.5		12.1		6.8
Total electric retail	$	562.2	$	473.7	$	1,072.2	$	956.7
Wholesale	47.7		58.8		115.8		126.4
Transmission	115.4		96.6		224.3		197.2
Other	—		—		1.8		1.7
Total revenue from contracts with customers	$	725.3	$	629.1	$	1,414.1	$	1,282.0
Other	2.0		10.5		6.4		36.2
Operating revenues	$	727.3	$	639.6	$	1,420.5	$	1,318.2


Evergy Metro
	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Revenues	(millions)
Residential	$	184.9	$	186.0	$	340.9	$	344.0
Commercial	185.0		197.3		356.2		373.2
Industrial	33.5		35.0		64.7		63.4
Other retail	2.3		3.4		5.5		6.1
Total electric retail	$	405.7	$	421.7	$	767.3	$	786.7
Wholesale	25.5		25.9		31.8		37.3
Transmission	4.9		3.3		9.8		7.1
Other	—		—		2.5		2.4
Total revenue from contracts with customers	$	436.1	$	450.9	$	811.4	$	833.5
Other	37.9		34.4		83.5		58.2
Operating revenues	$	474.0	$	485.3	$	894.9	$	891.7

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Consolidated Statements of Cash Flows - Evergy Kansas Central, Inc - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 335.9	$ 327.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	556.2	532.8
Amortization of nuclear fuel	24.4	30.6
Amortization of deferred refueling outage	9.3	9.1
Amortization of corporate-owned life insurance	11.9	12.5
Stock compensation	8.1	11.5
Net deferred income taxes and credits	(13.5)	0.7
Allowance for equity funds used during construction	(7.8)	(4.7)
Payments for asset retirement obligations	(7.0)	(4.8)
Equity in earnings of equity method investees, net of income taxes	(3.8)	(3.7)
Income from corporate-owned life insurance	(11.4)	(9.0)
Other	(0.7)	0.8
Changes in working capital items:
Accounts receivable	(132.0)	5.6
Accounts receivable pledged as collateral	13.0	12.0
Fuel inventory and supplies	(28.7)	(55.9)
Prepaid expenses and other current assets	62.0	48.3
Accounts payable	(129.9)	(196.9)
Accrued taxes	89.6	79.8
Other current liabilities	(118.6)	(77.9)
Changes in other assets	(9.6)	13.5
Changes in other liabilities	(12.6)	(17.0)
Cash Flows from Operating Activities	634.8	715.2
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,296.1)	(1,104.2)
Acquisition of Persimmon Creek, net of cash acquired	0.0	(217.9)
Purchase of securities - trusts	(60.8)	(22.0)
Sale of securities - trusts	56.9	15.3
Investment in corporate-owned life insurance	(15.1)	(15.7)
Proceeds from investment in corporate-owned life insurance	44.1	42.4
Other investing activities	0.9	(5.3)
Cash Flows used in Investing Activities	(1,270.1)	(1,307.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	17.9	537.4
Collateralized short-term debt, net	(13.0)	(12.0)
Proceeds from long-term debt	920.7	690.5
Retirements of long-term debt	0.0	(350.0)
Borrowings against cash surrender value of corporate-owned life insurance	49.1	51.0
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(29.6)	(32.6)
Cash dividends paid	(295.4)	(281.3)
Other financing activities	(6.6)	(4.6)
Cash Flows from Financing Activities	643.1	598.4
NET CHANGE IN CASH AND CASH EQUIVALENTS	7.8	6.2
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	27.7	25.2
End of period	35.5	31.4
Evergy Kansas Central
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	236.1	194.3
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	279.7	252.8
Amortization of nuclear fuel	12.2	15.2
Amortization of deferred refueling outage	4.7	4.6
Amortization of corporate-owned life insurance	11.9	12.5
Net deferred income taxes and credits	(16.8)	(15.0)
Allowance for equity funds used during construction	(6.7)	(1.2)
Payments for asset retirement obligations	(4.5)	(3.9)
Equity in earnings of equity method investees, net of income taxes	(1.6)	(2.0)
Income from corporate-owned life insurance	(11.4)	(9.0)
Other	(2.7)	(2.7)
Changes in working capital items:
Accounts receivable	(43.7)	55.2
Accounts receivable pledged as collateral	(3.0)	13.0
Fuel inventory and supplies	(18.7)	(40.8)
Prepaid expenses and other current assets	27.3	15.9
Accounts payable	(2.8)	(42.8)
Accrued taxes	17.0	(25.2)
Other current liabilities	(110.3)	(52.3)
Changes in other assets	(11.0)	9.6
Changes in other liabilities	(7.8)	12.2
Cash Flows from Operating Activities	347.9	390.4
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(657.2)	(579.9)
Acquisition of Persimmon Creek, net of cash acquired	0.0	(217.9)
Purchase of securities - trusts	(7.2)	(6.5)
Sale of securities - trusts	6.8	4.9
Investment in corporate-owned life insurance	(15.1)	(15.7)
Proceeds from investment in corporate-owned life insurance	44.1	42.4
Other investing activities	(1.1)	0.3
Cash Flows used in Investing Activities	(629.7)	(772.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	365.2	41.0
Collateralized short-term debt, net	3.0	(13.0)
Proceeds from long-term debt	0.0	393.3
Retirements of long-term debt	0.0	(50.0)
Net money pool borrowings	(103.6)	0.0
Borrowings against cash surrender value of corporate-owned life insurance	45.9	48.0
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(29.6)	(32.6)
Other financing activities	(1.3)	(1.2)
Cash Flows from Financing Activities	279.6	385.5
NET CHANGE IN CASH AND CASH EQUIVALENTS	(2.2)	3.5
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	9.2	8.7
End of period	$ 7.0	$ 12.2

Derivative Instruments Gain and Losses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (3.9)	$ 2.7	$ (9.9)	$ 17.6
Commodity Contract [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(3.9)	2.7	(9.9)	17.6
Evergy Kansas Central
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(3.9)	2.7	(9.9)	17.6
Evergy Kansas Central \| Commodity Contract [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (3.9)	$ 2.7	$ (9.9)	$ 17.6

VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Feb. 28, 2024
Variable Interest Entity [Line Items]
Interest rate	5.06%
Evergy Missouri West \| SecuritizedBondsDue2040EMW [Member]
Variable Interest Entity [Line Items]
Long-term debt gross		$ 331.1
Evergy Missouri West \| SecuritizedBondsDue2040EMW [Member] \| Securitized Bonds
Variable Interest Entity [Line Items]
Long-term debt gross		$ 331.1
Interest rate		5.10%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

DERIVATIVE INSTRUMENTS

6 Months Ended

Jun. 30, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVE INSTRUMENTS

The Evergy Companies engage in the wholesale and retail sale of electricity as part of their regulated electric operations, in addition to limited non-regulated energy marketing activities. These activities expose the Evergy Companies to market risks associated with the price of electricity, natural gas and other energy-related products. Management has established risk management policies and strategies to reduce the potentially adverse effects that the volatility of the markets may have on the Evergy Companies' operating results. The Evergy Companies' commodity risk management activities, which are subject to the management, direction and control of an internal risk management committee, utilize derivative instruments to reduce the effects of fluctuations in wholesale sales and fuel and purchased power expense caused by commodity price volatility.

The Evergy Companies are also exposed to market risks arising from changes in interest rates and may use derivative instruments to manage these risks. The Evergy Companies' interest rate risk management activities have included using derivative instruments to hedge against future interest rate fluctuations on anticipated debt issuances.

The Evergy Companies also engage in non-regulated energy marketing activity for trading purposes, primarily at Evergy Kansas Central, which focuses on seizing market opportunities to create value driven by expected changes in the market prices of commodities, primarily electricity and natural gas.

The Evergy Companies consider various qualitative factors, such as contract and marketplace attributes, in designating derivative instruments at inception. The Evergy Companies may elect the normal purchases and normal sales (NPNS) exception, which requires the effects of the derivative to be recorded when the underlying contract settles under accrual accounting. The Evergy Companies account for derivative instruments that are not designated as NPNS primarily as either economic hedges or trading contracts (non-hedging derivatives) which are recorded as assets or liabilities on the consolidated balance sheets at fair value. See Note 11 for additional information on the Evergy Companies' methods for assessing the fair value of derivative instruments. Changes in the fair value of non-hedging derivatives that are related to the Evergy Companies' regulated operations are deferred to a regulatory asset or regulatory liability when determined to be probable of future recovery or refund from customers. Recovery of the actual costs incurred by regulated activities will not impact earnings but will impact cash flows due to the timing of the recovery mechanism. Cash flows for all derivative instruments are classified as operating activities on the Evergy Companies' statements of cash flows, with the exception of cash flows for interest rate swap agreements accounted for as cash flows hedges of forecasted debt transactions, which are recorded as financing activities. Changes in the fair value of non-hedging derivatives that are not related to the Evergy Companies' regulated operations are recorded in operating revenues on the Evergy Companies' statements of income and comprehensive income.

The Evergy Companies offset fair value amounts recognized for derivative instruments under master netting arrangements, which include rights to reclaim cash collateral (a receivable), or the obligation to return cash collateral (a payable).

The gross notional contract amount by commodity type for derivative instruments is summarized in the following table.

June 30

December 31

Non-hedging derivatives

Notional volume unit of measure

2024

2023

Evergy

(millions)

Commodity contracts

Power

MWhs

108.9

52.9

Natural gas

MMBtu

774.1

559.9

Evergy Kansas Central

Commodity contracts

Power

MWhs

63.2

32.1

Natural gas

MMBtu

774.1

558.7

Evergy Metro

Commodity contracts

Power

MWhs

34.6

15.1



		June 30		December 31
Evergy		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	23.7	$	23.2
	Other assets - long-term	40.5		35.7
Natural gas	Other assets - current	27.2		68.1
	Other assets - long-term	4.1		6.0
Total derivative assets		$	95.5	$	133.0
Commodity contracts
Power	Other liabilities - current	$	13.5	$	21.0
	Other liabilities - long-term	38.0		32.9
Natural gas	Other liabilities - current	29.2		68.1
	Other liabilities - long-term	4.7		6.8
Total derivative liabilities		$	85.4	$	128.8



		June 30		December 31
Evergy Kansas Central		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	13.4	$	18.3
	Other assets - long-term	40.5		35.7
Natural gas	Other assets - current	27.2		68.1
	Other assets - long-term	4.1		6.0
Total derivative assets		$	85.2	$	128.1
Commodity contracts
Power	Other liabilities - current	$	11.7	$	14.3
	Other liabilities - long-term	38.0		32.9
Natural gas	Other liabilities - current	29.2		67.0
	Other liabilities - long-term	4.7		6.8
Total derivative liabilities		$	83.6	$	121.0



		June 30		December 31
Evergy Metro		2024		2023
Non-hedging derivatives	Balance sheet location
Commodity contracts		(millions)
Power	Other assets - current	$	6.6	$	2.1



Total derivative assets		$	6.6	$	2.1
Commodity contracts
Power	Other liabilities - current	$	1.0	$	5.7



Total derivative liabilities		$	1.0	$	5.7


June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro
Derivative Assets	(millions)
Current
Gross amounts recognized	$	50.9	$	40.6	$	6.6
Gross amounts offset	(36.9)		(35.1)		(1.0)
Net amounts presented in other assets - current	$	14.0	$	5.5	$	5.6
Long-Term
Gross amounts recognized	$	44.6	$	44.6	$	—
Gross amounts offset	(12.3)		(12.3)		—
Net amounts presented in other assets - long-term	$	32.3	$	32.3	$	—
Derivative Liabilities
Current
Gross amounts recognized	$	42.7	$	40.9	$	1.0
Gross amounts offset	(35.4)		(33.5)		(1.0)
Net amounts presented in other liabilities - current	$	7.3	$	7.4	$	—
Long-Term
Gross amounts recognized	$	42.7	$	42.7	$	—
Gross amounts offset	(6.7)		(6.8)		—
Net amounts presented in other liabilities - long-term	$	36.0	$	35.9	$	—


December 31, 2023	Evergy		Evergy Kansas Central		Evergy Metro

Derivative Assets	(millions)
Current
Gross amounts recognized	$	91.3	$	86.4	$	2.1
Gross amounts offset	(78.4)		(75.3)		(2.1)
Net amounts presented in other assets - current	$	12.9	$	11.1	$	—
Long-Term
Gross amounts recognized	$	41.7	$	41.7	$	—
Gross amounts offset	(11.9)		(11.9)		—
Net amounts presented in other assets - long-term	$	29.8	$	29.8	$	—
Derivative Liabilities
Current
Gross amounts recognized	$	89.1	$	81.3	$	5.7
Gross amounts offset	(77.5)		(74.4)		(2.1)
Net amounts presented in other liabilities - current	$	11.6	$	6.9	$	3.6
Long-Term
Gross amounts recognized	$	39.7	$	39.7	$	—
Gross amounts offset	(5.9)		(5.9)		—
Net amounts presented in other liabilities - long-term	$	33.8	$	33.8	$	—

The following table summarizes the amounts of gain (loss) recognized in income for the change in fair value of derivatives not designated as hedging instruments for the Evergy Companies.


		Three Months Ended June 30				Year to Date June 30

Location of gain (loss)	Contract type	2024		2023		2024		2023
Evergy		(millions)
Operating revenues	Commodity	$	(3.9)	$	2.7	$	(9.9)	$	17.6
Total		$	(3.9)	$	2.7	$	(9.9)	$	17.6
Evergy Kansas Central
Operating revenues	Commodity	$	(3.9)	$	2.7	$	(9.9)	$	17.6
Total		$	(3.9)	$	2.7	$	(9.9)	$	17.6

Credit risk of the Evergy Companies' derivative instruments relates to the potential adverse financial impact resulting from non-performance by a counterparty of its contractual obligations. The Evergy Companies maintain credit policies and employ credit risk mitigation, such as collateral requirements or letters of credit, when necessary to minimize their overall credit risk and monitor exposure. Substantially all of the Evergy Companies' counterparty credit risk associated with derivative instruments relates to Evergy Kansas Central's non-regulated energy marketing activities. As of June 30, 2024, if counterparty groups completely failed to perform on contracts, Evergy's and Evergy Kansas Central's maximum exposure related to derivative assets was $36.5 million. As of June 30, 2024, the potential loss after the consideration of applicable master netting arrangements and collateral received for Evergy and Evergy Kansas Central was $26.7 million.

Certain of the Evergy Companies' derivative instruments contain collateral provisions that are tied to the Evergy Companies' credit ratings and may require the posting of collateral for various reasons, including if the Evergy Companies' credit ratings were to fall below investment grade. Substantially all of these derivative instruments relate to Evergy Kansas Central's non-regulated energy marketing activities. The aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a liability position as of June 30, 2024, was $40.0 million for which Evergy and Evergy Kansas Central have posted $2.5 million collateral in the normal course of business. If the credit-risk-related contingent features underlying these agreements were triggered as of June 30, 2024, Evergy and Evergy Kansas Central could be required to post an additional $37.4 million of collateral to their counterparties.

FAIR VALUE MEASUREMENTS

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

Values of Financial Instruments

GAAP establishes a hierarchical framework for disclosing the transparency of the inputs utilized in measuring assets and liabilities at fair value. Management's assessment of the significance of a particular input to the fair value measurement requires judgment and may affect the classification of assets and liabilities within the fair value hierarchy levels. In addition, the Evergy Companies measure certain investments that do not have a readily determinable fair value at net asset value (NAV), which are not included in the fair value hierarchy. Further explanation of these levels and NAV is summarized below.

Level 1 – Quoted prices are available in active markets for identical assets or liabilities. The types of assets and liabilities included in Level 1 are highly liquid and actively traded instruments with quoted prices, such as equities listed on public exchanges or exchange-traded derivative instruments.

Level 2 – Pricing inputs are not quoted prices in active markets but are either directly or indirectly observable. The types of assets and liabilities included in Level 2 are certain marketable debt securities, financial instruments traded in less than active markets, non-exchange traded derivative instruments with observable forward curves and options contracts.

Level 3 – Significant inputs to pricing have little or no transparency. The types of assets and liabilities included in Level 3 are those with inputs requiring significant management judgment or estimation. The types of assets and liabilities included in Level 3 are non-exchange traded derivative instruments for which observable market data is not available to corroborate the valuation inputs and transmission congestion rights (TCRs) in the SPP Integrated Marketplace.

NAV - Investments that do not have a readily determinable fair value are measured at NAV. These investments do not consider the observability of inputs and, therefore, they are not included within the fair value hierarchy. The Evergy Companies include in this category investments in private equity, real estate and alternative investment funds that do not have a readily determinable fair value. The underlying alternative investments include collateralized debt obligations, mezzanine debt and a variety of other investments.

The Evergy Companies record cash and cash equivalents, accounts receivable and short-term borrowings on their consolidated balance sheets at cost, which approximates fair value due to the short-term nature of these instruments.

Fair Value of Long-Term Debt

The Evergy Companies measure the fair value of long-term debt using Level 2 measurements available as of the measurement date. The book value and fair value of the Evergy Companies' long-term debt are summarized in the following table.



	June 30, 2024				December 31, 2023
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt(a)	(millions)
Evergy(b)	$	12,774.1	$	11,699.3	$	11,853.3	$	11,044.9
Evergy Kansas Central	4,581.8		4,031.8		4,580.4		4,176.6
Evergy Metro	3,222.5		2,958.8		2,924.4		2,738.8

(a) Includes current maturities.

(b) Book value as of June 30, 2024 and December 31, 2023, includes $84.3 million and $87.0 million, respectively, of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Evergy Kansas Central merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument.

Recurring Fair Value Measurements

The following tables include balances of financial assets and liabilities measured at fair value on a recurring basis.


Description	June 30, 2024			Netting		Level 1		Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets




Nuclear decommissioning trust(a)
Domestic equity funds		$	143.8	$	—	$	134.1		$	—		$	—		$	9.7
International equity funds		77.4		—		77.4			—			—			—
Core bond fund		57.8		—		57.8			—			—			—
High-yield bond fund		30.4		—		30.4			—			—			—
Emerging markets bond fund		18.5		—		18.5			—			—			—

Alternative investments fund		42.9		—		—			—			—			42.9
Real estate securities fund		16.3		—		—			—			—			16.3
Cash equivalents		0.5		—		0.5			—			—			—

Total nuclear decommissioning trust		387.6		—		318.7			—			—			68.9
Rabbi trust
Fixed income funds		14.6		—		14.6			—			—			—
Equity funds		7.0		—		7.0			—			—			—
Combination debt/equity/other fund		1.7		—		1.7			—			—			—
Cash equivalents		0.2		—		0.2			—			—			—
Total rabbi trust		23.5		—		23.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		37.0		(16.9)		15.9			36.4			1.6			—
Natural gas		0.8		(30.5)		25.2			6.1			—			—
Total derivative assets		37.8		(47.4)		41.1			42.5			1.6			—
Total assets		448.9		(47.4)		383.3			42.5			1.6			68.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		39.9		(9.8)		8.1			40.0			1.6			—
Natural gas		3.4		(30.5)		27.7			6.2			—			—
Total derivative liabilities		43.3		(40.3)		35.8			46.2			1.6			—
Total liabilities		$	43.3	$	(40.3)	$	35.8		$	46.2		$	1.6		$	—
Evergy Metro
Assets
Nuclear decommissioning trust(a)
Equity securities		$	340.6	$	—	$	340.6		$	—		$	—		$	—
Debt securities
U.S. Treasury		47.0		—		47.0			—			—			—

State and local obligations		2.2		—		—			2.2			—			—
Corporate bonds		46.8		—		—			46.8			—			—
Foreign governments		0.1		—		—			0.1			—			—
Cash equivalents		3.4		—		3.4			—			—			—

Total nuclear decommissioning trust		440.1		—		391.0			49.1			—			—
Self-insured health plan trust(c)
Equity securities		2.2		—		2.2			—			—			—
Debt securities		11.4		—		2.6			8.8			—			—
Cash and cash equivalents		3.3		—		3.3			—			—			—
Total self-insured health plan trust		16.9		—		8.1			8.8			—			—
Derivative instruments - commodity contracts(b)
Power		5.6		(1.0)		—			—			6.6			—

Total derivative assets		5.6		(1.0)		—			—			6.6			—
Total assets		462.6		(1.0)		399.1			57.9			6.6			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(1.0)		—			—			1.0			—

Total derivative liabilities		—		(1.0)		—			—			1.0			—
Total liabilities		$	—	$	(1.0)	$	—		$	—		$	1.0		$	—


Description	June 30, 2024			Netting		Level 1		Level 2			Level 3			NAV
Other Evergy		(millions)
Assets

Rabbi trusts
Core bond fund		$	8.5	$	—	$	8.5		$	—		$	—		$	—

Total rabbi trusts		8.5		—		8.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		2.9		(0.8)		—			—			3.7			—

Total derivative assets		2.9		(0.8)		—			—			3.7			—
Total assets		11.4		(0.8)		8.5			—			3.7			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(0.8)		—			—			0.8			—

Total derivative liabilities		—		(0.8)		—			—			0.8			—
Total liabilities		$	—	$	(0.8)	$	—		$	—		$	0.8		$	—
Evergy
Assets
Nuclear decommissioning trust(a)		$	827.7	$	—	$	709.7		$	49.1		$	—		$	68.9
Rabbi trusts		32.0		—		32.0			—			—			—
Self-insured health plan trust(c)		16.9		—		8.1			8.8			—			—

Derivative instruments - commodity contracts(b)
Power		45.5		(18.7)		15.9			36.4			11.9			—
Natural gas		0.8		(30.5)		25.2			6.1			—			—
Total derivative assets		46.3		(49.2)		41.1			42.5			11.9			—
Total assets		922.9		(49.2)		790.9			100.4			11.9			68.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		39.9		(11.6)		8.1			40.0			3.4			—
Natural gas		3.4		(30.5)		27.7			6.2			—			—
Total derivative liabilities		43.3		(42.1)		35.8			46.2			3.4			—
Total liabilities		$	43.3	$	(42.1)	$	35.8		$	46.2		$	3.4		$	—


Description	December 31, 2023			Netting		Level 1			Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust(a)
Domestic equity funds		$	133.1	$	—		$	123.3		$	—		$	—		$	9.8
International equity funds		72.6		—			72.6			—			—			—
Core bond fund		56.2		—			56.2			—			—			—
High-yield bond fund		29.1		—			29.1			—			—			—
Emerging markets bond fund		18.3		—			18.3			—			—			—

Alternative investments fund		37.9		—			—			—			—			37.9
Real estate securities fund		17.2		—			—			—			—			17.2
Cash equivalents		0.7		—			0.7			—			—			—
Total nuclear decommissioning trust		365.1		—			300.2			—			—			64.9
Rabbi trust
Fixed income funds		15.2		—			15.2			—			—			—
Equity funds		7.4		—			7.4			—			—			—
Combination debt/equity/other fund		1.7		—			1.7			—			—			—
Cash equivalents		0.2		—			0.2			—			—			—
Total rabbi trust		24.5		—			24.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		40.2		(13.8)			16.3			32.2			5.5			—
Natural gas		0.7		(73.4)			72.7			1.4			—			—
Total derivative assets		40.9		(87.2)			89.0			33.6			5.5			—
Total assets		430.5		(87.2)			413.7			33.6			5.5			64.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		40.3		(6.9)			9.4			34.6			3.2			—
Natural gas		0.4		(73.4)			72.6			1.2			—			—
Total derivative liabilities		40.7		(80.3)			82.0			35.8			3.2			—
Total liabilities		$	40.7	$	(80.3)		$	82.0		$	35.8		$	3.2		$	—
Evergy Metro
Assets
Nuclear decommissioning trust(a)
Equity securities		$	302.4	$	—		$	302.4		$	—		$	—		$	—
Debt securities
U.S. Treasury		47.9		—			47.9			—			—			—

State and local obligations		3.8		—			—			3.8			—			—
Corporate bonds		43.9		—			—			43.9			—			—
Foreign governments		0.1		—			—			0.1			—			—
Cash equivalents		3.2		—			3.2			—			—			—

Total nuclear decommissioning trust		401.3		—			353.5			47.8			—			—
Self-insured health plan trust(c)
Equity securities		2.0		—			2.0			—			—			—
Debt securities		9.4		—			2.5			6.9			—			—
Cash and cash equivalents		4.3		—			4.3			—			—			—
Total self-insured health plan trust		15.7		—			8.8			6.9			—			—
Derivative instruments - commodity contracts(b)
Power		—		(2.1)			—			—			2.1			—

Total derivative assets		—		(2.1)			—			—			2.1			—
Total assets		417.0		(2.1)			362.3			54.7			2.1			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		3.6		(2.1)			—			—			5.7			—

Total derivative liabilities		3.6		(2.1)			—			—			5.7			—
Total liabilities		$	3.6	$	(2.1)		$	—		$	—		$	5.7		$	—


Description	December 31, 2023			Netting		Level 1			Level 2			Level 3			NAV
Other Evergy		(millions)
Assets



Rabbi trusts
Core bond fund		$	8.8	$	—		$	8.8		$	—		$	—		$	—
Total rabbi trusts		8.8		—			8.8			—			—			—
Derivative instruments - commodity contracts(b)
Power		1.8		(1.0)			—			—			2.8			—

Total derivative assets		1.8		(1.0)			—			—			2.8			—
Total assets		10.6		(1.0)			8.8			—			2.8			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(1.0)			—			—			1.0			—
Natural gas		1.1		—			—			1.1			—			—
Total derivative liabilities		1.1		(1.0)			—			1.1			1.0			—
Total liabilities		$	1.1	$	(1.0)		$	—		$	1.1		$	1.0		$	—
Evergy
Assets
Nuclear decommissioning trust(a)		$	766.4	$	—		$	653.7		$	47.8		$	—		$	64.9
Rabbi trusts		33.3		—			33.3			—			—			—
Self-insured health plan trust(c)		15.7		—			8.8			6.9			—			—

Derivative instruments - commodity contracts(b)
Power		42.0		(16.9)			16.3			32.2			10.4			—
Natural gas		0.7		(73.4)			72.7			1.4			—			—
Total derivative assets		42.7		(90.3)			89.0			33.6			10.4			—
Total assets		858.1		(90.3)			784.8			88.3			10.4			64.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		43.9		(10.0)			9.4			34.6			9.9			—
Natural gas		1.5		(73.4)			72.6			2.3			—			—
Total derivative liabilities		45.4		(83.4)			82.0			36.9			9.9			—
Total liabilities		$	45.4	$	(83.4)		$	82.0		$	36.9		$	9.9		$	—

(a)With the exception of investments measured at NAV, fair value is based on quoted market prices of the investments held by the trust and/or valuation models.

(b)Derivative instruments classified as Level 1 consist of exchange-traded derivative instruments with fair value based on quoted market prices. Derivative instruments classified as Level 2 consist of non-exchange traded derivative instruments with observable forward curves and option contracts priced with models using observable inputs. Derivative instruments classified as Level 3 consist of non-exchange traded derivative instruments for which observable market data is not available to corroborate the valuation inputs and TCRs valued at the most recent auction price in the SPP Integrated Marketplace.

(c)Fair value is based on quoted market prices of the investments held by the trust. Debt securities classified as Level 1 are comprised of U.S. Treasury securities. Debt securities classified as Level 2 are comprised of corporate bonds, U.S. Agency, state and local obligations, and other asset-backed securities.

Certain Evergy and Evergy Kansas Central investments included in the table above are measured at NAV as they do not have readily determinable fair values. In certain situations, these investments may have redemption restrictions. The following table provides additional information on these Evergy and Evergy Kansas Central investments.


	June 30, 2024				December 31, 2023				June 30, 2024
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Evergy Kansas Central	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	9.7	$	1.4	$	9.8	$	1.4	(a)	(a)
Alternative investments fund(b)	42.9		—		37.9		—		Quarterly	65 days
Real estate securities fund(b)	16.3		—		17.2		—		Quarterly	65 days








Total Evergy investments at NAV	$	68.9	$	1.4	$	64.9	$	1.4

(a)This investment is in five long-term private equity funds that do not permit early withdrawal. Investments in these funds cannot be distributed until the underlying investments have been liquidated, which may take years from the date of initial liquidation. All funds have begun to make distributions.

(b)There is a holdback on final redemptions.

The Evergy Companies hold equity and debt investments classified as securities in various trusts including for the purposes of funding the decommissioning of Wolf Creek and for the benefit of certain retired executive officers of Evergy Kansas Central. The Evergy Companies record net realized and unrealized gains and losses on the nuclear decommissioning trusts in regulatory liabilities on their consolidated balance sheets and record net realized and unrealized gains and losses on the Evergy Companies' rabbi trusts in the consolidated statements of income and comprehensive income.

The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Evergy	(millions)
Nuclear decommissioning trust - equity securities	$	22.0	$	25.2	$	52.3	$	54.7
Nuclear decommissioning trust - debt securities	(0.4)		(1.3)		(1.7)		0.8
Rabbi trusts - equity securities	(0.1)		0.1		0.3		1.7
Total	$	21.5	$	24.0	$	50.9	$	57.2
Evergy Kansas Central
Nuclear decommissioning trust - equity securities	$	12.0	$	7.9	$	20.5	$	22.0
Rabbi trust - equity securities	—		0.2		0.5		1.5
Total	$	12.0	$	8.1	$	21.0	$	23.5
Evergy Metro
Nuclear decommissioning trust - equity securities	$	10.0	$	17.3	$	31.8	$	32.7
Nuclear decommissioning trust - debt securities	(0.4)		(1.3)		(1.7)		0.8
Total	$	9.6	$	16.0	$	30.1	$	33.5

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

RECEIVABLES - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	$ 185.0
Additional Amount of Outstanding Principal Under Receivables Agreement	65.0
Evergy Metro
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	130.0	$ 130.0
Additional Amount of Outstanding Principal Under Receivables Agreement	70.0
Evergy Missouri West
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	50.0
Additional Amount of Outstanding Principal Under Receivables Agreement	$ 65.0
Borrowings from mid November through mid July \| Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement		185.0
Borrowings from mid November through mid July \| Evergy Missouri West
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement		50.0
Borrowings from mid July through mid November \| Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement		200.0
Borrowings from mid July through mid November \| Evergy Missouri West
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement		$ 65.0

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Allowance for credit losses	$ 18.0	$ 24.2
Regulatory assets	252.0	292.1
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	24,301.4	23,728.7
Current maturities of long-term debt	819.5	800.0
Long-term debt, net	$ 11,954.6	$ 11,053.3
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	229,954,524	229,729,296
Variable Interest Entities
Regulatory assets	$ 15.4	$ 0.0
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	130.0	133.6
Current maturities of long-term debt	19.5	0.0
Long-term debt, net	$ 303.6	$ 0.0

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of Short-term Debt

The following table summarizes the committed credit facilities (excluding receivable sale facilities discussed in Note 3) available to the Evergy Companies as of June 30, 2024 and December 31, 2023.


			Amounts Drawn
	Master Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
June 30, 2024	(millions)
Evergy, Inc.	$	200.0	$	—	$	0.7	$	—	$	199.3	—%
Evergy Kansas Central	750.0		595.6		1.0		—		153.4		5.53%
Evergy Metro	850.0		264.3		1.0		—		584.7		5.50%
Evergy Missouri West	700.0		109.8		—		—		590.2		5.49%
Evergy	$	2,500.0	$	969.7	$	2.7	$	—	$	1,527.6

December 31, 2023
Evergy, Inc.	$	300.0	$	—	$	0.7	$	—	$	299.3	—%
Evergy Kansas Central	750.0		230.4		1.0		—		518.6		5.56%
Evergy Metro	750.0		423.3		—		—		326.7		5.58%
Evergy Missouri West	700.0		298.1		—		—		401.9		5.66%
Evergy	$	2,500.0	$	951.8	$	1.7	$	—	$	1,546.5

ORGANIZATION AND BASIS OF PRESENTATION - Organization (Details) customer in Millions, $ in Millions	1 Months Ended	6 Months Ended
	Apr. 30, 2024 USD ($) MW	Jun. 30, 2024 subsidiary kilovolt_line customer segment mi MW
Summary Of Accounting Policies [Line Items]
Owned generating capacity and renewable purchased power		15,800
Number of customers served \| customer		1.7
Number of segments \| segment		1
2024 Natural Gas Plant Purchase
Summary Of Accounting Policies [Line Items]
Jointly owned utility plant, proportionate ownership share	22.00%
ApproximateMWNameplateCapacity	145
Asset Acquisition, Consideration Transferred \| $	$ 60.0
Dogwood costs recovery period	2 years
Prairie Wind Transmission, LLC
Summary Of Accounting Policies [Line Items]
Transmission line length \| mi		108
Transmission line electrical potential \| kilovolt_line		345
Evergy Kansas South Inc \| Evergy Kansas Central
Summary Of Accounting Policies [Line Items]
Number of active wholly owned subsidiaries \| subsidiary		1
Transource Energy, LLC \| Evergy Transmission Company LLC
Summary Of Accounting Policies [Line Items]
Ownership percentage		13.50%
Transource Energy, LLC \| AEP Transmission Holding Company, LLC
Summary Of Accounting Policies [Line Items]
Ownership interest		86.50%
Prairie Wind Transmission, LLC \| Evergy Kansas Central
Summary Of Accounting Policies [Line Items]
Ownership percentage		50.00%

VARIABLE INTEREST ENTITIES

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

VARIABLE INTEREST ENTITIES

In determining the primary beneficiary of a VIE, the Evergy Companies assess the entity's purpose and design, including the nature of the entity's activities and the risks that the entity was designed to create and pass through to its variable interest holders. A reporting enterprise is deemed to be the primary beneficiary of a VIE if it has (a) the power to direct the activities of the VIE that most significantly impact the VIE's economic performance and (b) the obligation to absorb losses or right to receive benefits from the VIE that could potentially be significant to the VIE. The primary beneficiary of a VIE is required to consolidate the VIE.

All involvement with entities by the Evergy Companies is assessed to determine whether such entities are VIEs and, if so, whether or not the Evergy Companies are the primary beneficiaries of the entities. The Evergy Companies

also continuously assess whether they are the primary beneficiary of the VIE with which they are involved. Prospective changes in facts and circumstances may cause identification of the primary beneficiary to be reconsidered.

Evergy Missouri West Storm Funding

In 2022, Evergy Missouri West created Evergy Missouri West Storm Funding solely for the purpose of recovering extraordinary fuel and purchased power costs incurred as part of the February 2021 winter weather event. In February 2024, Evergy Missouri West Storm Funding issued, at a discount, $331.1 million of 5.10% Securitized Bonds with a final payment scheduled for 2038, maturing in 2040. The obligations of Evergy Missouri West Storm Funding's Securitized Bonds are repaid through charges imposed on customers in Evergy Missouri West's service territory and collected by Evergy Missouri West on behalf of Evergy Missouri West Storm Funding. Creditors of Evergy Missouri West have no recourse to any assets or revenues of Evergy Missouri West Storm Funding, and the bondholders have no recourse to the general credit of Evergy Missouri West. See Note 4 for additional information regarding the February 2021 winter weather event securitization.

Evergy Missouri West Storm Funding is considered a VIE. Evergy Missouri West is the primary beneficiary of the VIE primarily because, as described above, Evergy Missouri West has the power to direct the activities of Evergy Missouri West Storm Funding that most significantly impact economic performance and Evergy Missouri West has the obligation to absorb losses or the right to receive benefits from Evergy Missouri West Storm Funding that could potentially be significant. Therefore, Evergy Missouri West consolidates Evergy Missouri West Storm Funding.

June 30

2024

Evergy

(millions)

Current assets

Regulatory assets

15.4

Other

6.9

Other assets

Regulatory assets

302.6

Other

1.7

Current liabilities

Current maturities of long-term debt

19.5

Accrued interest

6.0

Long-term liabilities

Long-term debt, net

303.6

ORGANIZATION AND BASIS OF PRESENTATION (Tables)

6 Months Ended

Jun. 30, 2024

Accounting Policies [Abstract]

Restrictions on Cash and Cash Equivalents

The following table summarizes the cash, cash equivalents and restricted cash included on Evergy's consolidated balance sheet.


	June 30 2024		December 31 2023
Evergy	(millions)
Current assets
Cash and cash equivalents	$	26.1	$	27.7
Other	7.7		—
Other assets
Other	1.7		—
Total cash, cash equivalents and restricted cash	$	35.5	$	27.7

Schedule of Fuel Inventory and Supplies

The Evergy Companies record fuel inventory and supplies at average cost. The following table separately states the balances for fuel inventory and supplies.


	June 30 2024		December 31 2023
Evergy	(millions)
Fuel inventory	$	247.9	$	257.3
Supplies	558.8		518.9
Fuel inventory and supplies	$	806.7	$	776.2
Evergy Kansas Central
Fuel inventory	$	139.7	$	138.6
Supplies	291.1		273.3
Fuel inventory and supplies	$	430.8	$	411.9
Evergy Metro
Fuel inventory	$	71.5	$	81.5
Supplies	198.4		183.1
Fuel inventory and supplies	$	269.9	$	264.6

Summary of Property, Plant and Equipment

The following tables summarize the property, plant and equipment of Evergy, Evergy Kansas Central and Evergy Metro.


June 30, 2024	Evergy			Evergy Kansas Central			Evergy Metro
		(millions)
Electric plant in service		$	35,496.2		$	17,285.0		$	13,242.5
Electric plant acquisition adjustment		742.8			724.9			—
Accumulated depreciation		(13,738.4)			(6,690.7)			(5,578.1)
Plant in service, net		22,500.6			11,319.2			7,664.4
Construction work in progress		1,618.3			1,031.2			450.2
Nuclear fuel, net		181.8			90.6			91.2
Plant to be retired, net(b)		0.7			0.7			—
Property, plant and equipment, net		$	24,301.4		$	12,441.7		$	8,205.8

December 31, 2023	Evergy			Evergy Kansas Central			Evergy Metro
		(millions)
Electric plant in service(a)		$	34,558.1		$	16,858.7		$	13,005.5
Electric plant acquisition adjustment		724.9			724.9			—
Accumulated depreciation(a)		(13,301.6)			(6,502.7)			(5,404.9)
Plant in service, net(a)		21,981.4			11,080.9			7,600.6
Construction work in progress		1,543.5			939.1			428.7
Nuclear fuel, net		203.0			101.1			101.9
Plant to be retired, net(b)		0.8			0.8			—
Property, plant and equipment, net(a)		$	23,728.7		$	12,121.9		$	8,131.2

(b) As of June 30, 2024 and December 31, 2023, represents the planned retirement of Evergy Kansas Central analog meters prior to the end of their remaining useful lives.

Schedule of Other Nonoperating Income (Expense)

The table below shows the detail of other expense for each of the Evergy Companies.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Evergy	(millions)
Non-service cost component of net benefit cost	$	(4.6)	$	(16.0)	$	(9.2)	$	(30.8)
Corporate-owned life insurance	(6.3)		(4.6)		(10.8)		(10.7)
Other	(0.5)		(0.4)		(0.9)		(0.8)
Other expense	$	(11.4)	$	(21.0)	$	(20.9)	$	(42.3)
Evergy Kansas Central
Non-service cost component of net benefit cost	$	0.6	$	(4.2)	$	1.1	$	(8.2)
Corporate-owned life insurance	(6.2)		(4.5)		(10.4)		(10.3)
Other	(0.2)		—		(0.2)		(0.1)
Other expense	$	(5.8)	$	(8.7)	$	(9.5)	$	(18.6)
Evergy Metro
Non-service cost component of net benefit cost	$	(3.1)	$	(9.2)	$	(6.1)	$	(17.9)
Corporate-owned life insurance	(0.1)		(0.1)		(0.4)		(0.4)
Other	(0.4)		(0.5)		(0.7)		(0.5)
Other expense	$	(3.6)	$	(9.8)	$	(7.2)	$	(18.8)

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles Evergy's basic and diluted EPS.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Income	(millions, except per share amounts)
Net income	$	210.1	$	182.2	$	335.9	$	327.9
Less: net income attributable to noncontrolling interests	3.1		3.1		6.2		6.2
Net income attributable to Evergy, Inc.	$	207.0	$	179.1	$	329.7	$	321.7
Common Shares Outstanding
Weighted average number of common shares outstanding - basic	230.3		230.1		230.2		230.0
Add: effect of dilutive securities	0.2		0.4		0.3		0.4
Diluted average number of common shares outstanding	230.5		230.5		230.5		230.4
Basic EPS	$	0.90	$	0.78	$	1.43	$	1.40
Diluted EPS	$	0.90	$	0.78	$	1.43	$	1.40

Supplemental Cash Flow Information


Evergy
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	265.5	$	238.6

Income taxes, net of refunds	8.1		6.8
Right-of-use assets obtained in exchange for new operating lease liabilities	3.1		9.0
Right-of-use assets obtained in exchange for new finance lease liabilities	6.9		2.9
Non-cash investing transactions:
Property, plant and equipment additions	115.1		120.1


Evergy Kansas Central
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	108.1	$	95.1

Income taxes, net of refunds	7.3		52.2
Right-of-use assets obtained in exchange for new operating lease liabilities	1.3		4.6
Right-of-use assets obtained in exchange for new finance lease liabilities	4.9		2.9
Non-cash investing transactions:
Property, plant and equipment additions	72.5		58.6


Evergy Metro
Year to Date June 30	2024		2023
Cash paid for (received from):	(millions)
Interest, net of amount capitalized	$	71.7	$	64.4
Income taxes, net of refunds	3.5		(18.5)
Right-of-use assets obtained in exchange for new operating lease liabilities	1.6		4.2
Right-of-use assets obtained in exchange for new finance lease liabilities	2.0		—
Non-cash investing transactions:
Property, plant and equipment additions	25.9		41.5

VARIABLE INTEREST ENTITIES - Assets and Liabilities Related to VIE (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Assets:
Property, plant and equipment, net	$ 24,301.4	$ 23,728.7
Regulatory assets, includes $15.4 and $— related to variable interest entity, respectively	252.0	292.1
Other	7.7	0.0
Regulatory assets	1,843.5	1,795.3
Other	1.7	0.0
Liabilities:
Current maturities of long-term debt	819.5	800.0
Accrued interest	117.1	134.2
Long-term debt, net	11,954.6	11,053.3
Variable Interest Entities
Assets:
Property, plant and equipment, net	130.0	133.6
Regulatory assets, includes $15.4 and $— related to variable interest entity, respectively	15.4	0.0
Other	6.9
Regulatory assets	302.6	0.0
Other	1.7
Liabilities:
Current maturities of long-term debt	19.5	0.0
Accrued interest	6.0	0.0
Long-term debt, net	303.6	0.0
Evergy Kansas Central
Assets:
Property, plant and equipment, net	12,441.7	12,121.9
Regulatory assets, includes $15.4 and $— related to variable interest entity, respectively	113.3	127.7
Regulatory assets	543.8	505.2
Liabilities:
Accrued interest	53.8	79.7
Long-term debt, net	4,581.8	4,580.4
Evergy Kansas Central \| Variable Interest Entities
Assets:
Property, plant and equipment, net	$ 130.0	$ 133.6

RECEIVABLES - Other Receivables (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 85.1	$ 61.5
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	76.4	59.9
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 7.4	$ 0.8

Consolidated Balance Sheets - Evergy Kansas Central, Inc (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Allowance for credit losses	$ 18.0	$ 24.2
Property, plant and equipment, net	$ 24,301.4	$ 23,728.7
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	229,954,524	229,729,296
Evergy Kansas Central
Allowance for credit losses	$ 8.8	$ 11.6
Property, plant and equipment, net	$ 12,441.7	$ 12,121.9
Common stock - shares authorized (in shares)	1,000	1,000
Common stock - par value (in dollars per share)	$ 0.01	$ 0.01
Common stock - shares issued (in shares)	1	1

ORGANIZATION AND BASIS OF PRESENTATION - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 24,301.4	$ 23,728.7
Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	35,496.2	34,558.1
Property, plant and equipment, adjustment	742.8	724.9
Accumulated depreciation	(13,738.4)	(13,301.6)
Property, plant and equipment, net	22,500.6	21,981.4
Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	1,618.3	1,543.5
Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	181.8	203.0
Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.7	0.8
Evergy Kansas Central
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	12,441.7	12,121.9
Evergy Kansas Central \| Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17,285.0	16,858.7
Property, plant and equipment, adjustment	724.9	724.9
Accumulated depreciation	(6,690.7)	(6,502.7)
Property, plant and equipment, net	11,319.2	11,080.9
Evergy Kansas Central \| Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	1,031.2	939.1
Evergy Kansas Central \| Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	90.6	101.1
Evergy Kansas Central \| Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.7	0.8
Evergy Metro
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	8,205.8	8,131.2
Evergy Metro \| Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,242.5	13,005.5
Property, plant and equipment, adjustment	0.0	0.0
Accumulated depreciation	(5,578.1)	(5,404.9)
Property, plant and equipment, net	7,664.4	7,600.6
Evergy Metro \| Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	450.2	428.7
Evergy Metro \| Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	91.2	101.9
Evergy Metro \| Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 0.0	$ 0.0

RECEIVABLES

6 Months Ended

Jun. 30, 2024

Receivables [Abstract]

RECEIVABLES

The Evergy Companies' receivables are detailed in the following table.



	June 30		December 31
	2024		2023
Evergy	(millions)
Customer accounts receivable - billed	$	7.4	$	2.6
Customer accounts receivable - unbilled	279.5		109.1
Other receivables	160.4		169.4
Allowance for credit losses	(18.0)		(24.2)
Total	$	429.3	$	256.9
Evergy Kansas Central
Customer accounts receivable - billed	$	—	$	—
Customer accounts receivable - unbilled	112.4		39.9
Other receivables	134.4		143.5
Allowance for credit losses	(8.8)		(11.6)
Total	$	238.0	$	171.8
Evergy Metro
Customer accounts receivable - billed	$	—	$	—
Customer accounts receivable - unbilled	93.2		27.2
Other receivables	36.1		35.7
Allowance for credit losses	(6.3)		(7.9)
Total	$	123.0	$	55.0

The Evergy Companies' other receivables as of June 30, 2024 and December 31, 2023, consisted primarily of receivables from partners in jointly-owned electric utility plants, wholesale sales receivables and receivables related to alternative revenue programs. The Evergy Companies' other receivables also included receivables from contracts with customers as summarized in the following table.


	June 30		December 31

	2024		2023
	(millions)
Evergy	$	85.1	$	61.5
Evergy Kansas Central	76.4		59.9
Evergy Metro	7.4		0.8

The change in the Evergy Companies' allowance for credit losses is summarized in the following table.


	2024		2023
Evergy	(millions)
Beginning balance January 1	$	24.2	$	31.4
Credit loss expense	2.0		0.6
Write-offs	(14.6)		(15.0)
Recoveries of prior write-offs	6.4		5.6
Ending balance June 30	$	18.0	$	22.6
Evergy Kansas Central
Beginning balance January 1	$	11.6	$	16.9
Credit loss expense (income)	1.4		(0.2)
Write-offs	(7.1)		(8.0)
Recoveries of prior write-offs	2.9		2.4
Ending balance June 30	$	8.8	$	11.1
Evergy Metro
Beginning balance January 1	$	7.9	$	9.3
Credit loss expense	1.1		0.6
Write-offs	(5.1)		(4.7)
Recoveries of prior write-offs	2.4		2.1
Ending balance June 30	$	6.3	$	7.3

Sale of Accounts Receivable

Evergy Kansas Central, Evergy Metro and Evergy Missouri West sell an undivided percentage ownership interest in their retail electric accounts receivable to independent outside investors. These sales are accounted for as secured borrowings with accounts receivable pledged as collateral and a corresponding short-term collateralized note payable recognized on the balance sheets. The Evergy Companies' accounts receivable pledged as collateral and the corresponding short-term collateralized note payable are summarized in the following table.


	June 30		December 31

	2024		2023
	(millions)
Evergy	$	329.0	$	342.0
Evergy Kansas Central	169.0		166.0
Evergy Metro	110.0		126.0

In February 2024, Evergy Kansas Central, Evergy Metro and Evergy Missouri West amended the terms of their receivable sale facilities, including extending the expiration of each receivable sale facility from 2024 to 2025.

Prior to the amendment to Evergy Kansas Central's facility, it allowed for $185.0 million in aggregate outstanding principal amount of borrowings from mid-November through mid-July and then $200.0 million from mid-July through mid-November. Prior to the amendment to Evergy Metro's facility, it allowed for $130.0 million in aggregate outstanding principal amount of borrowings at any time. Prior to the amendment to Evergy Missouri West's facility, it allowed for $50.0 million in aggregate outstanding principal amount of borrowings from mid-November through mid-July and then $65.0 million from mid-July through mid-November.

Under the amended terms, effective in March 2024, Evergy Kansas Central's facility allows up to $185.0 million in aggregate outstanding principal amount to be borrowed at any time. To the extent Evergy Kansas Central has qualifying accounts receivable and subject to the bank's discretion, Evergy Kansas Central's facility allows for an additional $65.0 million in aggregate outstanding principal amount to be borrowed at any time. Evergy Metro's facility allows up to $130.0 million in aggregate outstanding principal amount to be borrowed at any time. To the extent Evergy Metro has qualifying accounts receivable and subject to the bank's discretion, Evergy Metro's facility allows for an additional $70.0 million in aggregate outstanding principal amount to be borrowed at any time. Evergy Missouri West's facility allows up to $50.0 million in aggregate outstanding principal amount to be borrowed at any time. To the extent Evergy Missouri West has qualifying accounts receivable and subject to the bank's discretion, Evergy Missouri West's facility allows for an additional $65.0 million in aggregate outstanding principal amount to be borrowed at any time.

RATE MATTERS AND REGULATION	6 Months Ended
RATE MATTERS AND REGULATION	Jun. 30, 2024
Regulated Operations [Abstract]
RATE MATTERS AND REGULATION	RATE MATTERS AND REGULATION State Corporation Commission of the State of Kansas (KCC) Proceedings Evergy Kansas Central 2024 Transmission Delivery Charge (TDC) In April 2024, the KCC issued an order adjusting Evergy Kansas Central's retail prices to include updated transmission costs as reflected in the Federal Energy Regulatory Commission (FERC) transmission formula rate (TFR). The new prices were effective in May 2024 and are expected to increase Evergy Kansas Central's annual retail revenues by $80.1 million when compared to 2023. Evergy Metro 2024 TDC In April 2024, the KCC issued an order adjusting Evergy Metro's retail prices to include updated transmission costs as reflected in the FERC TFR. The new prices were effective in May 2024 and are expected to increase Evergy Metro's annual retail revenues by $7.1 million when compared to 2023. MPSC Proceedings Evergy Missouri West's 2024 Rate Case Proceeding In February 2024, Evergy Missouri West filed an application with the MPSC to request an increase to its retail revenues of approximately $104 million. Evergy Missouri West's request reflected a return on equity of 10.5% (with a capital structure composed of 52% equity) and increases related to the recovery of infrastructure investments made to improve reliability and enhance customer service and the inclusion of certain costs related to Dogwood and Crossroads Energy Center (Crossroads), two natural gas plants. An evidentiary hearing in the case is scheduled to occur beginning in late September 2024 and new rates are expected to be effective in January 2025. Evergy Missouri West February 2021 Winter Weather Event Securitization In February 2021, much of the central and southern United States, including the service territories of the Evergy Companies, experienced a significant winter weather event that resulted in extremely cold temperatures over a multi-day period (February 2021 winter weather event). In November 2022, the MPSC issued a revised financing order authorizing Evergy Missouri West to issue securitized bonds to recover its extraordinary fuel and purchased power costs incurred as part of the February 2021 winter weather event. As part of the order, the MPSC found that Evergy Missouri West's costs were prudently incurred, that it should only be allowed to recover 95% of its extraordinary fuel and purchased power costs consistent with the 5% sharing provision of its fuel recovery mechanism, that it should be allowed to recover carrying costs incurred since February 2021 at Evergy Missouri West's long-term debt rate of 5.06% and approved a 15 year repayment period for the bonds with a 17 year legal maturity. Evergy Missouri West continued to record carrying charges on its February 2021 winter weather event regulatory asset until it issued the securitized bonds in February 2024. See Note 9 for additional information regarding the issuance of the securitized bonds. FERC Proceedings In October of each year, Evergy Kansas Central and Evergy Metro post an updated TFR that includes projected transmission capital expenditures and operating costs for the following year. This rate is the most significant component in the retail rate calculation for Evergy Kansas Central's and Evergy Metro's annual request with the KCC to adjust retail prices to include updated transmission costs through the TDC. Evergy Kansas Central TFR Annual Update In the most recent two years, the updated TFR was expected to adjust Evergy Kansas Central's annual transmission revenues by approximately: •$115.8 million increase effective in January 2024; and •$21.7 million decrease effective in March 2023. See "Evergy Kansas Central TFR Formal Challenge" within this Note 4 for additional information regarding the March 2023 adjustment. Evergy Kansas Central TFR Formal Challenge In March 2022, certain Evergy Kansas Central TFR customers submitted a formal challenge regarding the implementation of Evergy Kansas Central's TFR, specifically with regard to how Evergy Kansas Central's capital structure was calculated as part of determining the Annual Transmission Revenue Requirement (ATRR). As part of this challenge, the customers requested that Evergy Kansas Central make refunds for over-collections in rate years 2018 through 2022 as a result of the calculation of its capital structure included in the TFR. Evergy Kansas Central disputed that any refunds for 2018 through 2022 were required because Evergy Kansas Central was following its approved TFR formula. In December 2022, FERC issued an order addressing the challenge to the 2020 through 2022 over-collections which were refunded to customers as part of Evergy Kansas Central's 2023 TFR effective in March 2023. In February 2023, certain Evergy Kansas Central TFR customers submitted a formal complaint with FERC requesting the refund of over-collections related to the 2018 and 2019 rate years. As of June 30, 2024 and December 31, 2023, Evergy and Evergy Kansas Central had recorded a $7.1 million regulatory liability related to the 2018 and 2019 rate year refund request. A decision from FERC regarding this complaint is expected in 2024. Evergy Metro TFR Annual Update In the most recent two years, the updated TFR was expected to adjust Evergy Metro's annual transmission revenues by approximately: •$23.7 million increase effective in January 2024; and •$8.6 million increase effective in January 2023.

ASSET RETIREMENT OBLIGATIONS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Jointly Owned Utility Plant Interests [Line Items]
Liabilities incurred during the year	$ 72.8	$ 9.7	$ 72.8	$ 9.7
Wolf Creek Unit
Jointly Owned Utility Plant Interests [Line Items]
Jointly owned utility plant, proportionate ownership share	94.00%		94.00%
Evergy Kansas Central
Jointly Owned Utility Plant Interests [Line Items]
Liabilities incurred during the year	$ 44.8		$ 44.8	9.7
Evergy Metro
Jointly Owned Utility Plant Interests [Line Items]
Liabilities incurred during the year	$ 24.1		$ 24.1	$ 0.0
Evergy Metro \| Wolf Creek Unit
Jointly Owned Utility Plant Interests [Line Items]
Jointly owned utility plant, proportionate ownership share	47.00%		47.00%

Consolidated Statements of Cash Flows - Evergy Metro, Inc - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 335.9	$ 327.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	556.2	532.8
Amortization of nuclear fuel	24.4	30.6
Amortization of deferred refueling outage	9.3	9.1
Net deferred income taxes and credits	(13.5)	0.7
Allowance for equity funds used during construction	(7.8)	(4.7)
Payments for asset retirement obligations	(7.0)	(4.8)
Other	(0.7)	0.8
Changes in working capital items:
Accounts receivable	(132.0)	5.6
Accounts receivable pledged as collateral	13.0	12.0
Fuel inventory and supplies	(28.7)	(55.9)
Prepaid expenses and other current assets	62.0	48.3
Accounts payable	(129.9)	(196.9)
Accrued taxes	89.6	79.8
Other current liabilities	(118.6)	(77.9)
Changes in other assets	(9.6)	13.5
Changes in other liabilities	(12.6)	(17.0)
Cash Flows from Operating Activities	634.8	715.2
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,296.1)	(1,104.2)
Purchase of securities - trusts	(60.8)	(22.0)
Sale of securities - trusts	56.9	15.3
Other investing activities	0.9	(5.3)
Cash Flows used in Investing Activities	(1,270.1)	(1,307.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	17.9	537.4
Collateralized short-term debt, net	(13.0)	(12.0)
Proceeds from long-term debt	920.7	690.5
Retirements of long-term debt	0.0	(350.0)
Cash dividends paid	(295.4)	(281.3)
Other financing activities	(6.6)	(4.6)
Cash Flows from Financing Activities	643.1	598.4
NET CHANGE IN CASH AND CASH EQUIVALENTS	7.8	6.2
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	27.7	25.2
End of period	35.5	31.4
Evergy Metro
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	107.3	131.6
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	202.4	207.8
Amortization of nuclear fuel	12.3	15.4
Amortization of deferred refueling outage	4.7	4.6
Net deferred income taxes and credits	3.0	15.2
Allowance for equity funds used during construction	(1.1)	(3.4)
Payments for asset retirement obligations	(2.3)	(0.6)
Other	(0.2)	(0.2)
Changes in working capital items:
Accounts receivable	(42.7)	(11.8)
Accounts receivable pledged as collateral	16.0	(1.0)
Fuel inventory and supplies	(5.3)	(1.2)
Prepaid expenses and other current assets	(10.9)	(17.1)
Accounts payable	(77.1)	(89.5)
Accrued taxes	49.1	59.0
Other current liabilities	(14.7)	(27.8)
Changes in other assets	(10.2)	8.1
Changes in other liabilities	8.7	(8.4)
Cash Flows from Operating Activities	239.0	280.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(362.3)	(359.4)
Purchase of securities - trusts	(53.6)	(15.5)
Sale of securities - trusts	50.0	10.4
Net money pool lending	0.0	31.0
Other investing activities	1.2	2.8
Cash Flows used in Investing Activities	(364.7)	(330.7)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(159.0)	200.5
Collateralized short-term debt, net	(16.0)	1.0
Proceeds from long-term debt	297.0	297.2
Retirements of long-term debt	0.0	(300.0)
Cash dividends paid	0.0	(150.0)
Other financing activities	3.0	2.7
Cash Flows from Financing Activities	125.0	51.4
NET CHANGE IN CASH AND CASH EQUIVALENTS	(0.7)	1.4
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	3.3	3.1
End of period	$ 2.6	$ 4.5

GOODWILL (Details) $ in Millions	6 Months Ended
GOODWILL (Details) $ in Millions	Jun. 30, 2024 USD ($) reporting_unit	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill \| $	$ 2,336.6	$ 2,336.6
Number of reporting units \| reporting_unit	1

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Narrative (Details) $ in Millions	Jun. 30, 2024 USD ($)
Short-term Debt [Line Items]
Interest rate	5.06%
Cash Borrowings
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity	$ 2,500.0
Debt instrument, debt default, threshold	$ 100.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Kansas Central \| Cash Borrowings
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Metro \| Cash Borrowings
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Missouri West \| Cash Borrowings
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 335.9	$ 327.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	556.2	532.8
Amortization of nuclear fuel	24.4	30.6
Amortization of deferred refueling outage	9.3	9.1
Amortization of corporate-owned life insurance	11.9	12.5
Stock compensation	8.1	11.5
Net deferred income taxes and credits	(13.5)	0.7
Allowance for equity funds used during construction	(7.8)	(4.7)
Payments for asset retirement obligations	(7.0)	(4.8)
Equity in earnings of equity method investees, net of income taxes	(3.8)	(3.7)
Income from corporate-owned life insurance	(11.4)	(9.0)
Other	(0.7)	0.8
Changes in working capital items:
Accounts receivable	(132.0)	5.6
Accounts receivable pledged as collateral	13.0	12.0
Fuel inventory and supplies	(28.7)	(55.9)
Prepaid expenses and other current assets	62.0	48.3
Accounts payable	(129.9)	(196.9)
Accrued taxes	89.6	79.8
Other current liabilities	(118.6)	(77.9)
Changes in other assets	(9.6)	13.5
Changes in other liabilities	(12.6)	(17.0)
Cash Flows from Operating Activities	634.8	715.2
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,296.1)	(1,104.2)
Acquisition of Persimmon Creek, net of cash acquired	0.0	(217.9)
Purchase of securities - trusts	(60.8)	(22.0)
Sale of securities - trusts	56.9	15.3
Investment in corporate-owned life insurance	(15.1)	(15.7)
Proceeds from investment in corporate-owned life insurance	44.1	42.4
Other investing activities	0.9	(5.3)
Cash Flows used in Investing Activities	(1,270.1)	(1,307.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	17.9	537.4
Collateralized short-term borrowings, net	(13.0)	(12.0)
Proceeds from long-term debt	920.7	690.5
Retirements of long-term debt	0.0	(350.0)
Borrowings against cash surrender value of corporate-owned life insurance	49.1	51.0
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(29.6)	(32.6)
Cash dividends paid	(295.4)	(281.3)
Other financing activities	(6.6)	(4.6)
Cash Flows from Financing Activities	643.1	598.4
NET CHANGE IN CASH AND CASH EQUIVALENTS	7.8	6.2
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	27.7	25.2
End of period	$ 35.5	$ 31.4

RATE MATTERS AND REGULATION - Narrative (Details) $ in Millions	1 Months Ended		6 Months Ended
	May 31, 2024 USD ($)	Feb. 28, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Regulatory Proceedings [Line Items]
Interest rate			5.06%
Evergy Metro \| Missouri Public Service Commission
Regulatory Proceedings [Line Items]
Public Utilities, Recovery Mechanism's Sharing Percentage for Fuel Cost			0.05
Evergy Missouri West
Regulatory Proceedings [Line Items]
Regulatory Asset, Amortization Period			15 years
Evergy Missouri West \| Missouri Public Service Commission
Regulatory Proceedings [Line Items]
Public Utilities, Recovery Mechanism Percent for Fuel Cost			0.95
Transmission delivery charge \| Evergy Kansas Central \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount	$ 80.1
Transmission delivery charge \| Evergy Metro \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount	$ 7.1
2024 Rate case proceedings \| Evergy Kansas Central \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of increase (decrease) over prior year			$ 115.8
2024 Rate case proceedings \| Evergy Missouri West
Regulatory Proceedings [Line Items]
Annual revenue rate increase (decrease), requested		$ 104.0
Return on equity, requested		10.50%
Rate-making equity ratio, requested		52.00%
FERC 2024 TFR Proceeding \| Evergy Metro \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of increase (decrease) over prior year			23.7
FERC 2023 TFR Proceeding \| TFR Refund
Regulatory Proceedings [Line Items]
Regulatory liabilities			7.1		$ 7.1
FERC 2023 TFR Proceeding \| Evergy Kansas Central \| TFR Refund
Regulatory Proceedings [Line Items]
Regulatory liabilities			$ 7.1		$ 7.1
FERC 2023 TFR Proceeding \| Evergy Kansas Central \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of increase (decrease) over prior year				$ (21.7)
FERC 2023 TFR Proceeding \| Evergy Metro \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of increase (decrease) over prior year				$ 8.6
2021 MPSC Winter Weather Qualified Extraordinary Costs Securitization \| Evergy Missouri West \| Maximum
Regulatory Proceedings [Line Items]
Regulatory Asset, Amortization Period			17 years

ORGANIZATION AND BASIS OF PRESENTATION - Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	0		0
Warrant \| Maximum
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		3,950,000		3,950,000
Convertible note
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	0	0	0	0

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
REVENUE (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,407.1	$ 1,309.0	$ 2,687.7	$ 2,555.9
Other	40.4	45.2	90.8	95.1
Revenues	1,447.5	1,354.2	2,778.5	2,651.0
Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	725.3	629.1	1,414.1	1,282.0
Other	2.0	10.5	6.4	36.2
Revenues	727.3	639.6	1,420.5	1,318.2
Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	436.1	450.9	811.4	833.5
Other	37.9	34.4	83.5	58.2
Revenues	474.0	485.3	894.9	891.7
Residential
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	536.7	492.7	1,015.7	951.3
Residential \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	233.7	192.3	448.0	384.4
Residential \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	184.9	186.0	340.9	344.0
Commercial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	485.8	460.7	918.5	890.7
Commercial \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	208.3	180.7	391.9	358.8
Commercial \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	185.0	197.3	356.2	373.2
Industrial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	174.7	157.3	335.1	316.4
Industrial \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	114.2	98.2	220.2	206.7
Industrial \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	33.5	35.0	64.7	63.4
Other retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	10.2	8.9	22.1	20.2
Other retail \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	6.0	2.5	12.1	6.8
Other retail \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2.3	3.4	5.5	6.1
Total electric retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,207.4	1,119.6	2,291.4	2,178.6
Total electric retail \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	562.2	473.7	1,072.2	956.7
Total electric retail \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	405.7	421.7	767.3	786.7
Wholesale
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	73.3	83.1	144.3	153.5
Wholesale \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	47.7	58.8	115.8	126.4
Wholesale \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	25.5	25.9	31.8	37.3
Transmission
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	122.4	100.5	237.8	206.3
Transmission \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	115.4	96.6	224.3	197.2
Transmission \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4.9	3.3	9.8	7.1
Industrial steam and other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4.0	5.8	14.2	17.5
Industrial steam and other \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0.0	0.0	1.8	1.7
Industrial steam and other \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 0.0	$ 0.0	$ 2.5	$ 2.4

FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Carrying Value and Fair Value of Debt Instruments

The book value and fair value of the Evergy Companies' long-term debt are summarized in the following table.



	June 30, 2024				December 31, 2023
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt(a)	(millions)
Evergy(b)	$	12,774.1	$	11,699.3	$	11,853.3	$	11,044.9
Evergy Kansas Central	4,581.8		4,031.8		4,580.4		4,176.6
Evergy Metro	3,222.5		2,958.8		2,924.4		2,738.8

(a) Includes current maturities.

Schedule of Fair Value of Assets and Liabilities

The following tables include balances of financial assets and liabilities measured at fair value on a recurring basis.


Description	June 30, 2024			Netting		Level 1		Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets




Nuclear decommissioning trust(a)
Domestic equity funds		$	143.8	$	—	$	134.1		$	—		$	—		$	9.7
International equity funds		77.4		—		77.4			—			—			—
Core bond fund		57.8		—		57.8			—			—			—
High-yield bond fund		30.4		—		30.4			—			—			—
Emerging markets bond fund		18.5		—		18.5			—			—			—

Alternative investments fund		42.9		—		—			—			—			42.9
Real estate securities fund		16.3		—		—			—			—			16.3
Cash equivalents		0.5		—		0.5			—			—			—

Total nuclear decommissioning trust		387.6		—		318.7			—			—			68.9
Rabbi trust
Fixed income funds		14.6		—		14.6			—			—			—
Equity funds		7.0		—		7.0			—			—			—
Combination debt/equity/other fund		1.7		—		1.7			—			—			—
Cash equivalents		0.2		—		0.2			—			—			—
Total rabbi trust		23.5		—		23.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		37.0		(16.9)		15.9			36.4			1.6			—
Natural gas		0.8		(30.5)		25.2			6.1			—			—
Total derivative assets		37.8		(47.4)		41.1			42.5			1.6			—
Total assets		448.9		(47.4)		383.3			42.5			1.6			68.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		39.9		(9.8)		8.1			40.0			1.6			—
Natural gas		3.4		(30.5)		27.7			6.2			—			—
Total derivative liabilities		43.3		(40.3)		35.8			46.2			1.6			—
Total liabilities		$	43.3	$	(40.3)	$	35.8		$	46.2		$	1.6		$	—
Evergy Metro
Assets
Nuclear decommissioning trust(a)
Equity securities		$	340.6	$	—	$	340.6		$	—		$	—		$	—
Debt securities
U.S. Treasury		47.0		—		47.0			—			—			—

State and local obligations		2.2		—		—			2.2			—			—
Corporate bonds		46.8		—		—			46.8			—			—
Foreign governments		0.1		—		—			0.1			—			—
Cash equivalents		3.4		—		3.4			—			—			—

Total nuclear decommissioning trust		440.1		—		391.0			49.1			—			—
Self-insured health plan trust(c)
Equity securities		2.2		—		2.2			—			—			—
Debt securities		11.4		—		2.6			8.8			—			—
Cash and cash equivalents		3.3		—		3.3			—			—			—
Total self-insured health plan trust		16.9		—		8.1			8.8			—			—
Derivative instruments - commodity contracts(b)
Power		5.6		(1.0)		—			—			6.6			—

Total derivative assets		5.6		(1.0)		—			—			6.6			—
Total assets		462.6		(1.0)		399.1			57.9			6.6			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(1.0)		—			—			1.0			—

Total derivative liabilities		—		(1.0)		—			—			1.0			—
Total liabilities		$	—	$	(1.0)	$	—		$	—		$	1.0		$	—


Description	June 30, 2024			Netting		Level 1		Level 2			Level 3			NAV
Other Evergy		(millions)
Assets

Rabbi trusts
Core bond fund		$	8.5	$	—	$	8.5		$	—		$	—		$	—

Total rabbi trusts		8.5		—		8.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		2.9		(0.8)		—			—			3.7			—

Total derivative assets		2.9		(0.8)		—			—			3.7			—
Total assets		11.4		(0.8)		8.5			—			3.7			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(0.8)		—			—			0.8			—

Total derivative liabilities		—		(0.8)		—			—			0.8			—
Total liabilities		$	—	$	(0.8)	$	—		$	—		$	0.8		$	—
Evergy
Assets
Nuclear decommissioning trust(a)		$	827.7	$	—	$	709.7		$	49.1		$	—		$	68.9
Rabbi trusts		32.0		—		32.0			—			—			—
Self-insured health plan trust(c)		16.9		—		8.1			8.8			—			—

Derivative instruments - commodity contracts(b)
Power		45.5		(18.7)		15.9			36.4			11.9			—
Natural gas		0.8		(30.5)		25.2			6.1			—			—
Total derivative assets		46.3		(49.2)		41.1			42.5			11.9			—
Total assets		922.9		(49.2)		790.9			100.4			11.9			68.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		39.9		(11.6)		8.1			40.0			3.4			—
Natural gas		3.4		(30.5)		27.7			6.2			—			—
Total derivative liabilities		43.3		(42.1)		35.8			46.2			3.4			—
Total liabilities		$	43.3	$	(42.1)	$	35.8		$	46.2		$	3.4		$	—


Description	December 31, 2023			Netting		Level 1			Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust(a)
Domestic equity funds		$	133.1	$	—		$	123.3		$	—		$	—		$	9.8
International equity funds		72.6		—			72.6			—			—			—
Core bond fund		56.2		—			56.2			—			—			—
High-yield bond fund		29.1		—			29.1			—			—			—
Emerging markets bond fund		18.3		—			18.3			—			—			—

Alternative investments fund		37.9		—			—			—			—			37.9
Real estate securities fund		17.2		—			—			—			—			17.2
Cash equivalents		0.7		—			0.7			—			—			—
Total nuclear decommissioning trust		365.1		—			300.2			—			—			64.9
Rabbi trust
Fixed income funds		15.2		—			15.2			—			—			—
Equity funds		7.4		—			7.4			—			—			—
Combination debt/equity/other fund		1.7		—			1.7			—			—			—
Cash equivalents		0.2		—			0.2			—			—			—
Total rabbi trust		24.5		—			24.5			—			—			—
Derivative instruments - commodity contracts(b)
Power		40.2		(13.8)			16.3			32.2			5.5			—
Natural gas		0.7		(73.4)			72.7			1.4			—			—
Total derivative assets		40.9		(87.2)			89.0			33.6			5.5			—
Total assets		430.5		(87.2)			413.7			33.6			5.5			64.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		40.3		(6.9)			9.4			34.6			3.2			—
Natural gas		0.4		(73.4)			72.6			1.2			—			—
Total derivative liabilities		40.7		(80.3)			82.0			35.8			3.2			—
Total liabilities		$	40.7	$	(80.3)		$	82.0		$	35.8		$	3.2		$	—
Evergy Metro
Assets
Nuclear decommissioning trust(a)
Equity securities		$	302.4	$	—		$	302.4		$	—		$	—		$	—
Debt securities
U.S. Treasury		47.9		—			47.9			—			—			—

State and local obligations		3.8		—			—			3.8			—			—
Corporate bonds		43.9		—			—			43.9			—			—
Foreign governments		0.1		—			—			0.1			—			—
Cash equivalents		3.2		—			3.2			—			—			—

Total nuclear decommissioning trust		401.3		—			353.5			47.8			—			—
Self-insured health plan trust(c)
Equity securities		2.0		—			2.0			—			—			—
Debt securities		9.4		—			2.5			6.9			—			—
Cash and cash equivalents		4.3		—			4.3			—			—			—
Total self-insured health plan trust		15.7		—			8.8			6.9			—			—
Derivative instruments - commodity contracts(b)
Power		—		(2.1)			—			—			2.1			—

Total derivative assets		—		(2.1)			—			—			2.1			—
Total assets		417.0		(2.1)			362.3			54.7			2.1			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		3.6		(2.1)			—			—			5.7			—

Total derivative liabilities		3.6		(2.1)			—			—			5.7			—
Total liabilities		$	3.6	$	(2.1)		$	—		$	—		$	5.7		$	—


Description	December 31, 2023			Netting		Level 1			Level 2			Level 3			NAV
Other Evergy		(millions)
Assets



Rabbi trusts
Core bond fund		$	8.8	$	—		$	8.8		$	—		$	—		$	—
Total rabbi trusts		8.8		—			8.8			—			—			—
Derivative instruments - commodity contracts(b)
Power		1.8		(1.0)			—			—			2.8			—

Total derivative assets		1.8		(1.0)			—			—			2.8			—
Total assets		10.6		(1.0)			8.8			—			2.8			—
Liabilities
Derivative instruments - commodity contracts(b)
Power		—		(1.0)			—			—			1.0			—
Natural gas		1.1		—			—			1.1			—			—
Total derivative liabilities		1.1		(1.0)			—			1.1			1.0			—
Total liabilities		$	1.1	$	(1.0)		$	—		$	1.1		$	1.0		$	—
Evergy
Assets
Nuclear decommissioning trust(a)		$	766.4	$	—		$	653.7		$	47.8		$	—		$	64.9
Rabbi trusts		33.3		—			33.3			—			—			—
Self-insured health plan trust(c)		15.7		—			8.8			6.9			—			—

Derivative instruments - commodity contracts(b)
Power		42.0		(16.9)			16.3			32.2			10.4			—
Natural gas		0.7		(73.4)			72.7			1.4			—			—
Total derivative assets		42.7		(90.3)			89.0			33.6			10.4			—
Total assets		858.1		(90.3)			784.8			88.3			10.4			64.9
Liabilities
Derivative instruments - commodity contracts(b)
Power		43.9		(10.0)			9.4			34.6			9.9			—
Natural gas		1.5		(73.4)			72.6			2.3			—			—
Total derivative liabilities		45.4		(83.4)			82.0			36.9			9.9			—
Total liabilities		$	45.4	$	(83.4)		$	82.0		$	36.9		$	9.9		$	—

(a)With the exception of investments measured at NAV, fair value is based on quoted market prices of the investments held by the trust and/or valuation models.

Schedule of Fair Value Investments, Entities that Calculate NAV

The following table provides additional information on these Evergy and Evergy Kansas Central investments.


	June 30, 2024				December 31, 2023				June 30, 2024
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Evergy Kansas Central	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	9.7	$	1.4	$	9.8	$	1.4	(a)	(a)
Alternative investments fund(b)	42.9		—		37.9		—		Quarterly	65 days
Real estate securities fund(b)	16.3		—		17.2		—		Quarterly	65 days








Total Evergy investments at NAV	$	68.9	$	1.4	$	64.9	$	1.4

(b)There is a holdback on final redemptions.

Schedule of Fair Value Recurring Gain (Loss) Included in Earnings

The following table summarizes the net unrealized gains (losses) for the Evergy Companies' nuclear decommissioning trusts and rabbi trusts.


	Three Months Ended June 30				Year to Date June 30
	2024		2023		2024		2023
Evergy	(millions)
Nuclear decommissioning trust - equity securities	$	22.0	$	25.2	$	52.3	$	54.7
Nuclear decommissioning trust - debt securities	(0.4)		(1.3)		(1.7)		0.8
Rabbi trusts - equity securities	(0.1)		0.1		0.3		1.7
Total	$	21.5	$	24.0	$	50.9	$	57.2
Evergy Kansas Central
Nuclear decommissioning trust - equity securities	$	12.0	$	7.9	$	20.5	$	22.0
Rabbi trust - equity securities	—		0.2		0.5		1.5
Total	$	12.0	$	8.1	$	21.0	$	23.5
Evergy Metro
Nuclear decommissioning trust - equity securities	$	10.0	$	17.3	$	31.8	$	32.7
Nuclear decommissioning trust - debt securities	(0.4)		(1.3)		(1.7)		0.8
Total	$	9.6	$	16.0	$	30.1	$	33.5

ORGANIZATION AND BASIS OF PRESENTATION - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash paid for (received from):
Interest, net of amount capitalized	$ 265.5	$ 238.6
Income taxes, net of refunds	8.1	6.8
Right-of-use assets obtained in exchange for new operating lease liabilities	3.1	9.0
Right-of-use assets obtained in exchange for new finance lease liabilities	6.9	2.9
Non-cash investing transactions:
Property, plant and equipment additions	115.1	120.1
Evergy Kansas Central
Cash paid for (received from):
Interest, net of amount capitalized	108.1	95.1
Income taxes, net of refunds	7.3	52.2
Right-of-use assets obtained in exchange for new operating lease liabilities	1.3	4.6
Right-of-use assets obtained in exchange for new finance lease liabilities	4.9	2.9
Non-cash investing transactions:
Property, plant and equipment additions	72.5	58.6
Evergy Metro
Cash paid for (received from):
Interest, net of amount capitalized	71.7	64.4
Income taxes, net of refunds	3.5	(18.5)
Right-of-use assets obtained in exchange for new operating lease liabilities	1.6	4.2
Right-of-use assets obtained in exchange for new finance lease liabilities	2.0	0.0
Non-cash investing transactions:
Property, plant and equipment additions	$ 25.9	$ 41.5

PENSION PLANS AND POST-RETIREMENT BENEFITS PENSION PLANS AND POST-RETIREMENT BENEFITS - Schedule of Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax [Abstract]
Total recognized in OCI or regulatory asset/liability	$ (1.4)	$ (1.3)	$ (2.7)	$ (2.6)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	11.5	12.0	23.0	23.2
Interest cost	22.4	23.0	44.8	45.4
Expected return on plan assets	(21.7)	(22.1)	(43.4)	(43.9)
Prior service cost	0.5	0.5	1.0	1.0
Recognized net actuarial (gain) loss	(4.4)	(3.9)	(8.7)	(9.5)
Settlement and special termination (gain) loss	0.0	(2.0)	0.0	(17.9)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	8.3	7.5	16.7	(1.7)
Regulatory adjustment	6.9	22.0	12.6	55.5
Intercompany allocations	0.0	0.0	0.0	0.0
Net periodic benefit costs (income)	15.2	29.5	29.3	53.8
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.4	0.5	0.8	0.9
Interest cost	2.5	2.8	5.0	5.6
Expected return on plan assets	(2.9)	(3.0)	(5.7)	(6.0)
Prior service cost	0.0	0.0	0.0	0.0
Recognized net actuarial (gain) loss	(1.0)	(1.1)	(2.0)	(2.1)
Settlement and special termination (gain) loss		0.0		0.0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(1.0)	(0.8)	(1.9)	(1.6)
Regulatory adjustment	0.0	(0.2)	0.0	(0.3)
Intercompany allocations	0.0	0.0	0.0	0.0
Net periodic benefit costs (income)	(1.0)	(1.0)	(1.9)	(1.9)
Evergy Kansas Central \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	4.8	5.0	9.5	9.6
Interest cost	11.4	11.8	22.8	23.2
Expected return on plan assets	(10.8)	(11.2)	(21.5)	(22.2)
Prior service cost	0.5	0.5	1.0	1.0
Recognized net actuarial (gain) loss	0.2	0.1	0.4	(0.7)
Settlement and special termination (gain) loss	0.0	0.2	0.0	0.6
Net periodic benefit costs before regulatory adjustment and intercompany allocations	6.1	6.4	12.2	11.5
Regulatory adjustment	(1.1)	6.9	(3.2)	14.3
Intercompany allocations	(0.6)	(0.6)	(1.0)	(1.1)
Net periodic benefit costs (income)	4.4	12.7	8.0	24.7
Evergy Kansas Central \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.3	0.4	0.5
Interest cost	1.3	1.3	2.6	2.7
Expected return on plan assets	(1.5)	(1.5)	(3.0)	(3.0)
Prior service cost	0.0	0.0	0.0	0.0
Recognized net actuarial (gain) loss	(0.5)	(0.5)	(1.0)	(1.0)
Settlement and special termination (gain) loss		0.0		0.0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(0.5)	(0.4)	(1.0)	(0.8)
Regulatory adjustment	0.2	(0.6)	0.4	(1.2)
Intercompany allocations	0.0	0.0	0.0	0.1
Net periodic benefit costs (income)	(0.3)	(1.0)	(0.6)	(1.9)
Evergy Metro
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax [Abstract]
Total recognized in OCI or regulatory asset/liability	0.1	0.0	0.2	0.1
Evergy Metro \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	6.7	7.0	13.5	13.6
Interest cost	10.8	10.9	21.5	21.7
Expected return on plan assets	(11.0)	(10.9)	(21.9)	(21.7)
Prior service cost	0.0	0.0	0.0	0.0
Recognized net actuarial (gain) loss	(4.3)	(3.8)	(8.7)	(8.4)
Settlement and special termination (gain) loss	0.0	(2.2)	0.0	(18.5)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	2.2	1.0	4.4	(13.3)
Regulatory adjustment	7.8	15.1	15.5	41.0
Intercompany allocations	(0.6)	(0.3)	(1.1)	(0.5)
Net periodic benefit costs (income)	9.4	15.8	18.8	27.2
Evergy Metro \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.2	0.4	0.4
Interest cost	1.3	1.4	2.5	2.7
Expected return on plan assets	(1.3)	(1.4)	(2.7)	(2.8)
Prior service cost	(0.1)	(0.1)	(0.2)	(0.2)
Recognized net actuarial (gain) loss	(0.5)	(0.5)	(0.9)	(1.0)
Settlement and special termination (gain) loss		0.0		0.0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(0.4)	(0.4)	(0.9)	(0.9)
Regulatory adjustment	(0.1)	0.4	(0.2)	1.0
Intercompany allocations	0.2	0.0	0.3	0.0
Net periodic benefit costs (income)	$ (0.3)	$ 0.0	$ (0.8)	$ 0.1

PENSION PLANS AND POST-RETIREMENT BENEFITS (Tables)

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants.


	Pension Benefits						Post-Retirement Benefits
Three Months Ended June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	11.5	$	4.8	$	6.7	$	0.4	$	0.2	$	0.2
Interest cost	22.4		11.4		10.8		2.5		1.3		1.3
Expected return on plan assets	(21.7)		(10.8)		(11.0)		(2.9)		(1.5)		(1.3)
Prior service cost	0.5		0.5		—		—		—		(0.1)
Recognized net actuarial (gain) loss	(4.4)		0.2		(4.3)		(1.0)		(0.5)		(0.5)

Net periodic benefit costs before regulatory adjustment and intercompany allocations	8.3		6.1		2.2		(1.0)		(0.5)		(0.4)
Regulatory adjustment	6.9		(1.1)		7.8		—		0.2		(0.1)
Intercompany allocations	—		(0.6)		(0.6)		—		—		0.2
Net periodic benefit costs (income)	$	15.2	$	4.4	$	9.4	$	(1.0)	$	(0.3)	$	(0.3)


	Pension Benefits						Post-Retirement Benefits
Year to Date June 30, 2024	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	23.0	$	9.5	$	13.5	$	0.8	$	0.4	$	0.4
Interest cost	44.8		22.8		21.5		5.0		2.6		2.5
Expected return on plan assets	(43.4)		(21.5)		(21.9)		(5.7)		(3.0)		(2.7)
Prior service cost	1.0		1.0		—		—		—		(0.2)
Recognized net actuarial (gain)/loss	(8.7)		0.4		(8.7)		(2.0)		(1.0)		(0.9)

Net periodic benefit costs before regulatory adjustment and intercompany allocations	16.7		12.2		4.4		(1.9)		(1.0)		(0.9)
Regulatory adjustment	12.6		(3.2)		15.5		—		0.4		(0.2)
Intercompany allocations	—		(1.0)		(1.1)		—		—		0.3
Net periodic benefit costs (income)	$	29.3	$	8.0	$	18.8	$	(1.9)	$	(0.6)	$	(0.8)


	Pension Benefits						Post-Retirement Benefits
Three Months Ended June 30, 2023	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	12.0	$	5.0	$	7.0	$	0.5	$	0.3	$	0.2
Interest cost	23.0		11.8		10.9		2.8		1.3		1.4
Expected return on plan assets	(22.1)		(11.2)		(10.9)		(3.0)		(1.5)		(1.4)
Prior service cost	0.5		0.5		—		—		—		(0.1)
Recognized net actuarial (gain)/loss	(3.9)		0.1		(3.8)		(1.1)		(0.5)		(0.5)
Settlement (gain) loss	(2.0)		0.2		(2.2)		—		—		—
Net periodic benefit costs before regulatory adjustment and intercompany allocations	7.5		6.4		1.0		(0.8)		(0.4)		(0.4)
Regulatory adjustment	22.0		6.9		15.1		(0.2)		(0.6)		0.4
Intercompany allocations	—		(0.6)		(0.3)		—		—		—
Net periodic benefit costs (income)	$	29.5	$	12.7	$	15.8	$	(1.0)	$	(1.0)	$	—


	Pension Benefits						Post-Retirement Benefits
Year to Date June 30, 2023	Evergy		Evergy Kansas Central		Evergy Metro		Evergy		Evergy Kansas Central		Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	23.2	$	9.6	$	13.6	$	0.9	$	0.5	$	0.4
Interest cost	45.4		23.2		21.7		5.6		2.7		2.7
Expected return on plan assets	(43.9)		(22.2)		(21.7)		(6.0)		(3.0)		(2.8)
Prior service cost	1.0		1.0		—		—		—		(0.2)
Recognized net actuarial (gain)/loss	(9.5)		(0.7)		(8.4)		(2.1)		(1.0)		(1.0)
Settlement (gain) loss	(17.9)		0.6		(18.5)		—		—		—
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(1.7)		11.5		(13.3)		(1.6)		(0.8)		(0.9)
Regulatory adjustment	55.5		14.3		41.0		(0.3)		(1.2)		1.0
Intercompany allocations	—		(1.1)		(0.5)		—		0.1		—
Net periodic benefit costs (income)	$	53.8	$	24.7	$	27.2	$	(1.9)	$	(1.9)	$	0.1

Consolidated Balance Sheets - Evergy Metro, Inc (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Allowance for credit losses	$ 18.0	$ 24.2
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	229,954,524	229,729,296
Evergy Metro
Allowance for credit losses	$ 6.3	$ 7.9
Common stock - shares authorized (in shares)	1,000	1,000
Common stock - shares issued (in shares)	1	1

ASSET RETIREMENT OBLIGATIONS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1			$ 1,203.1	$ 1,153.2
Liabilities incurred during the year	$ 72.8	$ 9.7	72.8	9.7
Revision in timing and/or estimates			0.0	3.2
Settlements			(7.0)	(21.8)
Accretion			28.4	58.8
Ending balance	1,297.3		1,297.3	1,203.1
Less: current portion	(44.9)		(44.9)	(40.3)
Asset retirement obligations	1,252.4		1,252.4	1,162.8
Evergy Kansas Central
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1			599.3	565.1
Liabilities incurred during the year	44.8		44.8	9.7
Revision in timing and/or estimates			0.0	1.6
Settlements			(4.5)	(9.8)
Accretion			16.4	32.7
Ending balance	656.0		656.0	599.3
Less: current portion	(25.9)		(25.9)	(22.2)
Asset retirement obligations	630.1		630.1	577.1
Evergy Metro
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1			460.4	444.2
Liabilities incurred during the year	24.1		24.1	0.0
Revision in timing and/or estimates			0.0	1.6
Settlements			(2.3)	(8.6)
Accretion			10.3	23.2
Ending balance	492.5		492.5	460.4
Less: current portion	(16.6)		(16.6)	(16.0)
Asset retirement obligations	$ 475.9		$ 475.9	$ 444.4

FAIR VALUE MEASUREMENTS - NAV (Details) $ in Millions	6 Months Ended
FAIR VALUE MEASUREMENTS - NAV (Details) $ in Millions	Jun. 30, 2024 USD ($) fund	Dec. 31, 2023 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 1.4	$ 1.4
Evergy Kansas Central \| Alternative investments fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0.0	0.0
Evergy Kansas Central \| Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0.0	0.0
Domestic \| Evergy Kansas Central \| Equity securities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 1.4	1.4
NAV, number of funds \| fund	5
Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 827.7	766.4
Total rabbi trust	32.0	33.3
Total Assets	922.9	858.1
Fair Value, Measurements, Recurring \| Evergy Kansas Central
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	387.6	365.1
Total rabbi trust	23.5	24.5
Total Assets	448.9	430.5
Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Alternative investments fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	42.9	37.9
Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	16.3	17.2
Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	57.8	56.2
Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Combination debt/equity/other fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	1.7	1.7
Fair Value, Measurements, Recurring \| Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	8.5	8.8
Total Assets	11.4	10.6
Fair Value, Measurements, Recurring \| Other Evergy \| Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	8.5	8.8
Fair Value, Measurements, Recurring \| Domestic \| Evergy Kansas Central \| Equity securities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	143.8	133.1
NAV \| Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	68.9	64.9
Total rabbi trust	0.0	0.0
Total Assets	68.9	64.9
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	68.9	64.9
Total rabbi trust	0.0	0.0
Total Assets	68.9	64.9
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Alternative investments fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 42.9	37.9
Length of Settlement	65 days
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 16.3	17.2
Length of Settlement	65 days
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 0.0	0.0
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Combination debt/equity/other fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	0.0	0.0
NAV \| Fair Value, Measurements, Recurring \| Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	0.0	0.0
Total Assets	0.0	0.0
NAV \| Fair Value, Measurements, Recurring \| Other Evergy \| Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	0.0	0.0
NAV \| Fair Value, Measurements, Recurring \| Domestic \| Evergy Kansas Central \| Equity securities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 9.7	$ 9.8

FAIR VALUE MEASUREMENTS - Recurring (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Assets
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Fair Value, Measurements, Recurring
Assets
Total nuclear decommissioning trust	$ 827.7	$ 766.4
Total rabbi trust	32.0	33.3
Derivative Asset	46.3	42.7
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(49.2)	(90.3)
Total self-insured health plan trust	16.9	15.7
Total Assets	922.9	858.1
Derivative Liability	43.3	45.4
FIN 39 Derivative liability netting	(42.1)	(83.4)
Total Liabilities	43.3	45.4
Fair Value, Measurements, Recurring \| Level 1
Assets
Total nuclear decommissioning trust	709.7	653.7
Total rabbi trust	32.0	33.3
Derivative Asset, Fair Value, Gross Asset	41.1	89.0
Total self-insured health plan trust	8.1	8.8
Total Assets	790.9	784.8
Derivative Liability, Fair Value, Gross Liability	35.8	82.0
Total Liabilities	35.8	82.0
Fair Value, Measurements, Recurring \| Level 2
Assets
Total nuclear decommissioning trust	49.1	47.8
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	42.5	33.6
Total self-insured health plan trust	8.8	6.9
Total Assets	100.4	88.3
Derivative Liability, Fair Value, Gross Liability	46.2	36.9
Total Liabilities	46.2	36.9
Fair Value, Measurements, Recurring \| Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	11.9	10.4
Total self-insured health plan trust	0.0	0.0
Total Assets	11.9	10.4
Derivative Liability, Fair Value, Gross Liability	3.4	9.9
Total Liabilities	3.4	9.9
Fair Value, Measurements, Recurring \| NAV
Assets
Total nuclear decommissioning trust	68.9	64.9
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total Assets	68.9	64.9
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Fair Value, Measurements, Recurring \| Power commodity contract
Assets
Derivative Asset	45.5	42.0
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(18.7)	(16.9)
Derivative Liability	39.9	43.9
FIN 39 Derivative liability netting	(11.6)	(10.0)
Fair Value, Measurements, Recurring \| Power commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	15.9	16.3
Derivative Liability, Fair Value, Gross Liability	8.1	9.4
Fair Value, Measurements, Recurring \| Power commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	36.4	32.2
Derivative Liability, Fair Value, Gross Liability	40.0	34.6
Fair Value, Measurements, Recurring \| Power commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	11.9	10.4
Derivative Liability, Fair Value, Gross Liability	3.4	9.9
Fair Value, Measurements, Recurring \| Power commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Fair Value, Measurements, Recurring \| Natural gas commodity contract
Assets
Derivative Asset	0.8	0.7
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(30.5)	(73.4)
Derivative Liability	3.4	1.5
FIN 39 Derivative liability netting	(30.5)	(73.4)
Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	25.2	72.7
Derivative Liability, Fair Value, Gross Liability	27.7	72.6
Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	6.1	1.4
Derivative Liability, Fair Value, Gross Liability	6.2	2.3
Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Fair Value, Measurements, Recurring \| Natural gas commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	$ 0.0	$ 0.0
Evergy Kansas Central
Assets
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Evergy Kansas Central \| Fair Value, Measurements, Recurring
Assets
Total nuclear decommissioning trust	$ 387.6	$ 365.1
Total rabbi trust	23.5	24.5
Derivative Asset	37.8	40.9
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(47.4)	(87.2)
Total Assets	448.9	430.5
Derivative Liability	43.3	40.7
FIN 39 Derivative liability netting	(40.3)	(80.3)
Total Liabilities	43.3	40.7
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Core bond fund
Assets
Total nuclear decommissioning trust	57.8	56.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| High-yield bond fund
Assets
Total nuclear decommissioning trust	30.4	29.1
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.5	18.3
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Combination debt/equity/other fund
Assets
Total rabbi trust	1.7	1.7
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Alternative investments fund
Assets
Total nuclear decommissioning trust	42.9	37.9
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Real estate securities fund
Assets
Total nuclear decommissioning trust	16.3	17.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.5	0.7
Total rabbi trust	0.2	0.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Equity funds
Assets
Total rabbi trust	7.0	7.4
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Fixed income funds
Assets
Total rabbi trust	14.6	15.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1
Assets
Total nuclear decommissioning trust	318.7	300.2
Total rabbi trust	23.5	24.5
Derivative Asset, Fair Value, Gross Asset	41.1	89.0
Total Assets	383.3	413.7
Derivative Liability, Fair Value, Gross Liability	35.8	82.0
Total Liabilities	35.8	82.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Core bond fund
Assets
Total nuclear decommissioning trust	57.8	56.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	30.4	29.1
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.5	18.3
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Combination debt/equity/other fund
Assets
Total rabbi trust	1.7	1.7
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.5	0.7
Total rabbi trust	0.2	0.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Equity funds
Assets
Total rabbi trust	7.0	7.4
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 1 \| Fixed income funds
Assets
Total rabbi trust	14.6	15.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	42.5	33.6
Total Assets	42.5	33.6
Derivative Liability, Fair Value, Gross Liability	46.2	35.8
Total Liabilities	46.2	35.8
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Combination debt/equity/other fund
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Equity funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 2 \| Fixed income funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	1.6	5.5
Total Assets	1.6	5.5
Derivative Liability, Fair Value, Gross Liability	1.6	3.2
Total Liabilities	1.6	3.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Combination debt/equity/other fund
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Equity funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Level 3 \| Fixed income funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV
Assets
Total nuclear decommissioning trust	68.9	64.9
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total Assets	68.9	64.9
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Combination debt/equity/other fund
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Alternative investments fund
Assets
Total nuclear decommissioning trust	42.9	37.9
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Real estate securities fund
Assets
Total nuclear decommissioning trust	16.3	17.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Equity funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| NAV \| Fixed income funds
Assets
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Power commodity contract
Assets
Derivative Asset	37.0	40.2
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(16.9)	(13.8)
Derivative Liability	39.9	40.3
FIN 39 Derivative liability netting	(9.8)	(6.9)
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	15.9	16.3
Derivative Liability, Fair Value, Gross Liability	8.1	9.4
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	36.4	32.2
Derivative Liability, Fair Value, Gross Liability	40.0	34.6
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	1.6	5.5
Derivative Liability, Fair Value, Gross Liability	1.6	3.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Power commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Natural gas commodity contract
Assets
Derivative Asset	0.8	0.7
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(30.5)	(73.4)
Derivative Liability	3.4	0.4
FIN 39 Derivative liability netting	(30.5)	(73.4)
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	25.2	72.7
Derivative Liability, Fair Value, Gross Liability	27.7	72.6
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	6.1	1.4
Derivative Liability, Fair Value, Gross Liability	6.2	1.2
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Evergy Kansas Central \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Evergy Kansas Central \| Domestic \| Fair Value, Measurements, Recurring \| Equity securities
Assets
Total nuclear decommissioning trust	143.8	133.1
Evergy Kansas Central \| Domestic \| Fair Value, Measurements, Recurring \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	134.1	123.3
Evergy Kansas Central \| Domestic \| Fair Value, Measurements, Recurring \| Level 2 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Domestic \| Fair Value, Measurements, Recurring \| Level 3 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Domestic \| Fair Value, Measurements, Recurring \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	9.7	9.8
Evergy Kansas Central \| International \| Fair Value, Measurements, Recurring \| Equity securities
Assets
Total nuclear decommissioning trust	77.4	72.6
Evergy Kansas Central \| International \| Fair Value, Measurements, Recurring \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	77.4	72.6
Evergy Kansas Central \| International \| Fair Value, Measurements, Recurring \| Level 2 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| International \| Fair Value, Measurements, Recurring \| Level 3 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| International \| Fair Value, Measurements, Recurring \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	$ 0.0	$ 0.0
Evergy Metro
Assets
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Evergy Metro \| Fair Value, Measurements, Recurring
Assets
Total nuclear decommissioning trust	$ 440.1	$ 401.3
Derivative Asset	5.6	0.0
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(1.0)	(2.1)
Total self-insured health plan trust	16.9	15.7
Total Assets	462.6	417.0
Derivative Liability	0.0	3.6
FIN 39 Derivative liability netting	(1.0)	(2.1)
Total Liabilities	0.0	3.6
Evergy Metro \| Fair Value, Measurements, Recurring \| Equity securities
Assets
Total nuclear decommissioning trust	340.6	302.4
Total self-insured health plan trust	2.2	2.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Cash equivalents
Assets
Total nuclear decommissioning trust	3.4	3.2
Evergy Metro \| Fair Value, Measurements, Recurring \| U.S. Treasury
Assets
Total nuclear decommissioning trust	47.0	47.9
Evergy Metro \| Fair Value, Measurements, Recurring \| State and local obligations
Assets
Total nuclear decommissioning trust	2.2	3.8
Evergy Metro \| Fair Value, Measurements, Recurring \| Corporate bonds
Assets
Total nuclear decommissioning trust	46.8	43.9
Evergy Metro \| Fair Value, Measurements, Recurring \| Foreign governments
Assets
Total nuclear decommissioning trust	0.1	0.1
Evergy Metro \| Fair Value, Measurements, Recurring \| Debt securities
Assets
Total self-insured health plan trust	11.4	9.4
Evergy Metro \| Fair Value, Measurements, Recurring \| Cash and cash equivalents
Assets
Total self-insured health plan trust	3.3	4.3
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1
Assets
Total nuclear decommissioning trust	391.0	353.5
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total self-insured health plan trust	8.1	8.8
Total Assets	399.1	362.3
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	340.6	302.4
Total self-insured health plan trust	2.2	2.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Cash equivalents
Assets
Total nuclear decommissioning trust	3.4	3.2
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	47.0	47.9
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Debt securities
Assets
Total self-insured health plan trust	2.6	2.5
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 1 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	3.3	4.3
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2
Assets
Total nuclear decommissioning trust	49.1	47.8
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total self-insured health plan trust	8.8	6.9
Total Assets	57.9	54.7
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| State and local obligations
Assets
Total nuclear decommissioning trust	2.2	3.8
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Corporate bonds
Assets
Total nuclear decommissioning trust	46.8	43.9
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.1	0.1
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Debt securities
Assets
Total self-insured health plan trust	8.8	6.9
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 2 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	6.6	2.1
Total self-insured health plan trust	0.0	0.0
Total Assets	6.6	2.1
Derivative Liability, Fair Value, Gross Liability	1.0	5.7
Total Liabilities	1.0	5.7
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Debt securities
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Level 3 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV
Assets
Total nuclear decommissioning trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Debt securities
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| NAV \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Power commodity contract
Assets
Derivative Asset	5.6	0.0
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(1.0)	(2.1)
Derivative Liability	0.0	3.6
FIN 39 Derivative liability netting	(1.0)	(2.1)
Evergy Metro \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Evergy Metro \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	6.6	2.1
Derivative Liability, Fair Value, Gross Liability	1.0	5.7
Evergy Metro \| Fair Value, Measurements, Recurring \| Power commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	$ 0.0	$ 0.0
Other Evergy
Assets
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other, Other	Other, Other
Other Evergy \| Fair Value, Measurements, Recurring
Assets
Total rabbi trust	$ 8.5	$ 8.8
Derivative Asset	2.9	1.8
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(0.8)	(1.0)
Total Assets	11.4	10.6
Derivative Liability	0.0	1.1
FIN 39 Derivative liability netting	(0.8)	(1.0)
Total Liabilities	0.0	1.1
Other Evergy \| Fair Value, Measurements, Recurring \| Core bond fund
Assets
Total rabbi trust	8.5	8.8
Other Evergy \| Fair Value, Measurements, Recurring \| Level 1
Assets
Total rabbi trust	8.5	8.8
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total Assets	8.5	8.8
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Level 1 \| Core bond fund
Assets
Total rabbi trust	8.5	8.8
Other Evergy \| Fair Value, Measurements, Recurring \| Level 2
Assets
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	1.1
Total Liabilities	0.0	1.1
Other Evergy \| Fair Value, Measurements, Recurring \| Level 2 \| Core bond fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Level 3
Assets
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	3.7	2.8
Total Assets	3.7	2.8
Derivative Liability, Fair Value, Gross Liability	0.8	1.0
Total Liabilities	0.8	1.0
Other Evergy \| Fair Value, Measurements, Recurring \| Level 3 \| Core bond fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| NAV
Assets
Total rabbi trust	0.0	0.0
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Total Assets	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Total Liabilities	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| NAV \| Core bond fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Power commodity contract
Assets
Derivative Asset	2.9	1.8
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(0.8)	(1.0)
Derivative Liability	0.0	0.0
FIN 39 Derivative liability netting	(0.8)	(1.0)
Other Evergy \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 1
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 2
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Power commodity contract \| Level 3
Assets
Derivative Asset, Fair Value, Gross Asset	3.7	2.8
Derivative Liability, Fair Value, Gross Liability	0.8	1.0
Other Evergy \| Fair Value, Measurements, Recurring \| Power commodity contract \| NAV
Assets
Derivative Asset, Fair Value, Gross Asset	0.0	0.0
Derivative Liability, Fair Value, Gross Liability	$ 0.0	0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Natural gas commodity contract
Assets
Derivative Liability		1.1
FIN 39 Derivative liability netting		0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 1
Assets
Derivative Liability, Fair Value, Gross Liability		0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 2
Assets
Derivative Liability, Fair Value, Gross Liability		1.1
Other Evergy \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| Level 3
Assets
Derivative Liability, Fair Value, Gross Liability		0.0
Other Evergy \| Fair Value, Measurements, Recurring \| Natural gas commodity contract \| NAV
Assets
Derivative Liability, Fair Value, Gross Liability		$ 0.0

Derivative Instruments - Notional Amounts (Details) - Not Designated as Hedging Instrument [Member] MWh in Millions, MMBTU in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2024 MWh MMBTU	Dec. 31, 2023 MWh MMBTU
Natural gas commodity contract
Price Risk Derivatives [Abstract]
Derivative, Nonmonetary Notional Amount, Energy Measure \| MMBTU	774.1	559.9
Power commodity contract
Price Risk Derivatives [Abstract]
Derivative, Nonmonetary Notional Amount, Energy Measure	108.9	52.9
Evergy Kansas Central \| Natural gas commodity contract
Price Risk Derivatives [Abstract]
Derivative, Nonmonetary Notional Amount, Energy Measure \| MMBTU	774.1	558.7
Evergy Kansas Central \| Power commodity contract
Price Risk Derivatives [Abstract]
Derivative, Nonmonetary Notional Amount, Energy Measure	63.2	32.1
Evergy Metro \| Power commodity contract
Price Risk Derivatives [Abstract]
Derivative, Nonmonetary Notional Amount, Energy Measure	34.6	15.1

RECEIVABLES (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 160.4	$ 169.4
Allowance for credit losses	(18.0)	(24.2)
Total	429.3	256.9
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	134.4	143.5
Allowance for credit losses	(8.8)	(11.6)
Total	238.0	171.8
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	36.1	35.7
Allowance for credit losses	(6.3)	(7.9)
Total	123.0	55.0
Customer accounts receivable \| Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	7.4	2.6
Customer accounts receivable \| Billed \| Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	0.0	0.0
Customer accounts receivable \| Billed \| Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	0.0	0.0
Customer accounts receivable \| Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	279.5	109.1
Customer accounts receivable \| Unbilled \| Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	112.4	39.9
Customer accounts receivable \| Unbilled \| Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable from subsidiaries	$ 93.2	$ 27.2

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 26.1		$ 27.7
Receivables, net of allowance for credit losses of $18.0 and $24.2, respectively	429.3		256.9
Accounts receivable pledged as collateral	329.0		342.0
Fuel inventory and supplies	806.7		776.2
Income taxes receivable	0.0		11.5
Regulatory assets, includes $15.4 and $— related to variable interest entity, respectively	252.0		292.1
Prepaid expenses	73.3		51.3
Other	47.6		31.4
Total Current Assets	1,964.0		1,789.1
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	24,301.4		23,728.7
OTHER ASSETS:
Regulatory assets, includes $302.6 and $— related to variable interest entity, respectively	1,843.5		1,795.3
Nuclear decommissioning trust	827.7		766.4
Goodwill	2,336.6		2,336.6
Other	557.8		560.0
Total Other Assets	5,565.6		5,458.3
TOTAL ASSETS	31,831.0		30,976.1
CURRENT LIABILITIES:
Current maturities of long-term debt, includes $19.5 and $— related to variable interest entity, respectively	819.5		800.0
Commercial paper	969.7		951.8
Collateralized note payable	329.0		342.0
Accounts payable	374.3		616.9
Accrued taxes	234.8		156.7
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	117.1		134.2
Regulatory liabilities	143.5		183.0
Asset retirement obligations	44.9		40.3
Accrued compensation and benefits	58.3		74.5
Other	219.7		213.2
Total Current Liabilities	3,310.8		3,512.6
LONG-TERM LIABILITIES:
Long-term debt, net, includes $303.6 and $— related to variable interest entity, respectively	11,954.6		11,053.3
Deferred income taxes	2,146.1		2,097.9
Unamortized investment tax credits	166.4		170.0
Regulatory liabilities	2,486.7		2,542.5
Pension and post-retirement liability	486.6		464.1
Asset retirement obligations	1,252.4		1,162.8
Other	295.7		287.9
Total Long-Term Liabilities	18,788.5		17,778.5
Evergy, Inc. Shareholders' Equity:
Common stock	7,239.2		7,234.9
Retained earnings	2,491.3		2,457.8
Accumulated other comprehensive loss	(26.9)		(29.6)
Total Evergy, Inc. Shareholders' Equity	9,703.6		9,663.1
Noncontrolling Interests	28.1		21.9
Total Equity	9,731.7	$ 9,664.1	9,685.0	$ 9,550.7	$ 9,501.7	$ 9,493.3
TOTAL LIABILITIES AND EQUITY	31,831.0		30,976.1
Variable Interest Entities
CURRENT ASSETS:
Regulatory assets, includes $15.4 and $— related to variable interest entity, respectively	15.4		0.0
PROPERTY, PLANT AND EQUIPMENT, NET, includes $130.0 and $133.6 related to variable interest entity, respectively	130.0		133.6
OTHER ASSETS:
Regulatory assets, includes $302.6 and $— related to variable interest entity, respectively	302.6		0.0
CURRENT LIABILITIES:
Current maturities of long-term debt, includes $19.5 and $— related to variable interest entity, respectively	19.5		0.0
Accrued interest, includes $6.0 and $— related to variable interest entity, respectively	6.0		0.0
LONG-TERM LIABILITIES:
Long-term debt, net, includes $303.6 and $— related to variable interest entity, respectively	$ 303.6		$ 0.0

Consolidated Statements of Comprehensive Income - Evergy Metro, Inc - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
OPERATING REVENUES	$ 1,447.5	$ 1,354.2	$ 2,778.5	$ 2,651.0
OPERATING EXPENSES:
Fuel and purchased power	359.0	344.8	735.4	699.0
Operating and maintenance	237.7	227.6	469.2	443.9
Depreciation and amortization	280.1	269.4	556.2	532.8
Taxes other than income tax	112.6	100.4	226.7	202.8
Total Operating Expenses	1,089.4	1,017.6	2,160.2	2,035.1
INCOME FROM OPERATIONS	358.1	336.6	618.3	615.9
OTHER INCOME (EXPENSE):
Investment earnings	2.6	6.7	7.9	15.8
Other income	9.8	2.6	18.3	14.8
Other expense	(11.4)	(21.0)	(20.9)	(42.3)
Total Other Expense, Net	1.0	(11.7)	5.3	(11.7)
Interest expense	143.6	133.7	276.8	256.8
INCOME BEFORE INCOME TAXES	215.5	191.2	346.8	347.4
Income tax expense	7.4	10.8	14.7	23.2
Net income attributable to Evergy, Inc.	207.0	179.1	329.7	321.7
Derivative hedging activity
Reclassification to expenses, net of tax	1.4	1.3	2.7	2.6
Derivative hedging activity, net of tax	1.4	1.3	2.7	2.6
Total other comprehensive income	1.4	1.3	2.7	2.6
COMPREHENSIVE INCOME	208.4	180.4	332.4	324.3
Evergy Metro
OPERATING REVENUES	474.0	485.3	894.9	891.7
OPERATING EXPENSES:
Fuel and purchased power	145.5	142.0	282.1	257.4
Operating and maintenance	67.6	66.8	135.5	132.1
Depreciation and amortization	101.9	105.4	202.4	207.8
Taxes other than income tax	36.2	32.2	73.5	65.7
Total Operating Expenses	351.2	346.4	693.5	663.0
INCOME FROM OPERATIONS	122.8	138.9	201.4	228.7
OTHER INCOME (EXPENSE):
Investment earnings	1.2	1.0	2.8	1.7
Other income	2.3	1.4	2.4	4.2
Other expense	(3.6)	(9.8)	(7.2)	(18.8)
Total Other Expense, Net	(0.1)	(7.4)	(2.0)	(12.9)
Interest expense	38.4	35.0	76.0	65.6
INCOME BEFORE INCOME TAXES	84.3	96.5	123.4	150.2
Income tax expense	9.7	11.7	16.1	18.6
Net income attributable to Evergy, Inc.	74.6	84.8	107.3	131.6
Derivative hedging activity
Reclassification to expenses, net of tax	(0.1)	0.0	(0.2)	(0.1)
Derivative hedging activity, net of tax	(0.1)	0.0	(0.2)	(0.1)
Total other comprehensive income	(0.1)	0.0	(0.2)	(0.1)
COMPREHENSIVE INCOME	$ 74.5	$ 84.8	$ 107.1	$ 131.5

ORGANIZATION AND BASIS OF PRESENTATION - Other Income And Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Entity Information [Line Items]
Non-service cost component of net benefit cost	$ (4.6)	$ (16.0)	$ (9.2)	$ (30.8)
Corporate-owned life insurance	(6.3)	(4.6)	(10.8)	(10.7)
Other	(0.5)	(0.4)	(0.9)	(0.8)
Other expense	(11.4)	(21.0)	(20.9)	(42.3)
Evergy Kansas Central
Entity Information [Line Items]
Non-service cost component of net benefit cost	0.6	(4.2)	1.1	(8.2)
Corporate-owned life insurance	(6.2)	(4.5)	(10.4)	(10.3)
Other	(0.2)	0.0	(0.2)	(0.1)
Other expense	(5.8)	(8.7)	(9.5)	(18.6)
Evergy Metro
Entity Information [Line Items]
Non-service cost component of net benefit cost	(3.1)	(9.2)	(6.1)	(17.9)
Corporate-owned life insurance	(0.1)	(0.1)	(0.4)	(0.4)
Other	(0.4)	(0.5)	(0.7)	(0.5)
Other expense	$ (3.6)	$ (9.8)	$ (7.2)	$ (18.8)

ORGANIZATION AND BASIS OF PRESENTATION - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Income
Net income	$ 210.1	$ 125.8	$ 182.2	$ 145.7	$ 335.9	$ 327.9
Less: Net income attributable to noncontrolling interests	3.1		3.1		6.2	6.2
Net income attributable to Evergy, Inc.	$ 207.0		$ 179.1		$ 329.7	$ 321.7
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic (in shares)	230.3		230.1		230.2	230.0
Add: effect of dilutive securities (in shares)	0.2		0.4		0.3	0.4
Diluted average number of common shares outstanding (in shares)	230.5		230.5		230.5	230.4
Earnings Per Share, Basic	$ 0.90		$ 0.78		$ 1.43	$ 1.40
Earnings Per Share, Diluted	$ 0.90		$ 0.78		$ 1.43	$ 1.40

RECEIVABLES - Allowance for Credit Loses (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	$ 24.2	$ 31.4
Credit loss expense	2.0	0.6
Write-offs	(14.6)	(15.0)
Recoveries of prior write-offs	6.4	5.6
Ending balance June 30	18.0	22.6
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	11.6	16.9
Credit loss expense	1.4	(0.2)
Write-offs	(7.1)	(8.0)
Recoveries of prior write-offs	2.9	2.4
Ending balance June 30	8.8	11.1
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	7.9	9.3
Credit loss expense	1.1	0.6
Write-offs	(5.1)	(4.7)
Recoveries of prior write-offs	2.4	2.1
Ending balance June 30	$ 6.3	$ 7.3

FAIR VALUE MEASUREMENTS - Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 12,774.1	$ 11,853.3
Fair Value \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	11,699.3	11,044.9
Evergy Kansas Central \| Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	4,581.8	4,580.4
Evergy Kansas Central \| Fair Value \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	4,031.8	4,176.6
Evergy Metro \| Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	3,222.5	2,924.4
Evergy Metro \| Fair Value \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	2,958.8	2,738.8
Long-Term debt fair value adjustment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt gross	$ 84.3	$ 87.0

Consolidated Statements of Changes in Equity - Evergy Kansas Central, Inc - USD ($) $ in Millions	Total	Common Stock	Retained earnings	Non-controlling interests	Evergy Kansas Central	Evergy Kansas Central Common Stock	Evergy Kansas Central Retained earnings	Evergy Kansas Central Non-controlling interests
Beginning balance (in shares) at Dec. 31, 2022		229,546,105				1
Beginning balance at Dec. 31, 2022	$ 9,493.3	$ 7,219.7	$ 2,298.5	$ 9.6	$ 4,507.4	$ 2,737.6	$ 1,760.2	$ 9.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	145.7		142.6	3.1	106.4		103.3	3.1
Dividends declared on common stock	(140.7)		(140.7)
Ending balance (in shares) at Mar. 31, 2023		229,676,699				1
Ending balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	12.7	4,613.8	$ 2,737.6	1,863.5	12.7
Beginning balance (in shares) at Dec. 31, 2022		229,546,105				1
Beginning balance at Dec. 31, 2022	9,493.3	$ 7,219.7	2,298.5	9.6	4,507.4	$ 2,737.6	1,760.2	9.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	327.9				194.3
Ending balance (in shares) at Jun. 30, 2023		229,701,709				1
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	15.8	4,701.7	$ 2,737.6	1,948.3	15.8
Beginning balance (in shares) at Mar. 31, 2023		229,676,699				1
Beginning balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	12.7	4,613.8	$ 2,737.6	1,863.5	12.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	182.2		179.1	3.1	87.9		84.8	3.1
Dividends declared on common stock	(140.7)		(140.7)
Ending balance (in shares) at Jun. 30, 2023		229,701,709				1
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	15.8	4,701.7	$ 2,737.6	1,948.3	15.8
Beginning balance (in shares) at Dec. 31, 2023		229,729,296				1
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	21.9	4,891.9	$ 2,737.6	2,132.4	21.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	125.8		122.7	3.1	111.6		108.5	3.1
Dividends declared on common stock	(147.7)		(147.7)
Ending balance (in shares) at Mar. 31, 2024		229,922,338				1
Ending balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	25.0	5,003.5	$ 2,737.6	2,240.9	25.0
Beginning balance (in shares) at Dec. 31, 2023		229,729,296				1
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	21.9	4,891.9	$ 2,737.6	2,132.4	21.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	335.9				236.1
Ending balance (in shares) at Jun. 30, 2024		229,954,524				1
Ending balance at Jun. 30, 2024	9,731.7	$ 7,239.2	2,491.3	28.1	5,128.0	$ 2,737.6	2,362.3	28.1
Beginning balance (in shares) at Mar. 31, 2024		229,922,338				1
Beginning balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	25.0	5,003.5	$ 2,737.6	2,240.9	25.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	210.1		207.0	3.1	124.5		121.4	3.1
Dividends declared on common stock	(147.7)		(147.7)
Ending balance (in shares) at Jun. 30, 2024		229,954,524				1
Ending balance at Jun. 30, 2024	$ 9,731.7	$ 7,239.2	$ 2,491.3	$ 28.1	$ 5,128.0	$ 2,737.6	$ 2,362.3	$ 28.1

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-28

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483443/250-10-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 65
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480175/815-40-65-1

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 250
-SubTopic 10
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+ Details

- Definition

Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

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+ Details

Consolidated Statements of Changes in Equity - Evergy Metro, Inc - USD ($) $ in Millions	Total	Common Stock	Retained earnings	Evergy Metro	Evergy Metro Common Stock	Evergy Metro Retained earnings	Evergy Metro AOCI - Net gains (losses) on cash flow hedges
Beginning balance (in shares) at Dec. 31, 2022		229,546,105			1
Beginning balance at Dec. 31, 2022	$ 9,493.3	$ 7,219.7	$ 2,298.5	$ 3,186.3	$ 1,563.1	$ 1,619.2	$ 4.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	145.7		142.6	46.8		46.8
Dividends declared on common stock	(140.7)		(140.7)
Derivative hedging activity, net of tax	1.3			(0.1)			(0.1)
Ending balance (in shares) at Mar. 31, 2023		229,676,699			1
Ending balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	3,233.0	$ 1,563.1	1,666.0	3.9
Beginning balance (in shares) at Dec. 31, 2022		229,546,105			1
Beginning balance at Dec. 31, 2022	9,493.3	$ 7,219.7	2,298.5	3,186.3	$ 1,563.1	1,619.2	4.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	327.9			131.6
Derivative hedging activity, net of tax	2.6			(0.1)
Ending balance (in shares) at Jun. 30, 2023		229,701,709			1
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	3,167.8	$ 1,563.1	1,600.8	3.9
Beginning balance (in shares) at Mar. 31, 2023		229,676,699			1
Beginning balance at Mar. 31, 2023	9,501.7	$ 7,222.2	2,300.0	3,233.0	$ 1,563.1	1,666.0	3.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	182.2		179.1	84.8		84.8
Dividends declared on common stock	(140.7)		(140.7)	(150.0)		(150.0)
Derivative hedging activity, net of tax	1.3			0.0
Ending balance (in shares) at Jun. 30, 2023		229,701,709			1
Ending balance at Jun. 30, 2023	9,550.7	$ 7,229.0	2,337.8	3,167.8	$ 1,563.1	1,600.8	3.9
Beginning balance (in shares) at Dec. 31, 2023		229,729,296			1
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	3,193.0	$ 1,563.1	1,626.2	3.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	125.8		122.7	32.7		32.7
Dividends declared on common stock	(147.7)		(147.7)
Derivative hedging activity, net of tax	1.3			(0.1)			(0.1)
Ending balance (in shares) at Mar. 31, 2024		229,922,338			1
Ending balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	3,225.6	$ 1,563.1	1,658.9	3.6
Beginning balance (in shares) at Dec. 31, 2023		229,729,296			1
Beginning balance at Dec. 31, 2023	9,685.0	$ 7,234.9	2,457.8	3,193.0	$ 1,563.1	1,626.2	3.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	335.9			107.3
Derivative hedging activity, net of tax	2.7			(0.2)
Ending balance (in shares) at Jun. 30, 2024		229,954,524			1
Ending balance at Jun. 30, 2024	9,731.7	$ 7,239.2	2,491.3	3,300.1	$ 1,563.1	1,733.5	3.5
Beginning balance (in shares) at Mar. 31, 2024		229,922,338			1
Beginning balance at Mar. 31, 2024	9,664.1	$ 7,235.0	2,432.4	3,225.6	$ 1,563.1	1,658.9	3.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	210.1		207.0	74.6		74.6
Dividends declared on common stock	(147.7)		(147.7)
Derivative hedging activity, net of tax	1.4			(0.1)			(0.1)
Ending balance (in shares) at Jun. 30, 2024		229,954,524			1
Ending balance at Jun. 30, 2024	$ 9,731.7	$ 7,239.2	$ 2,491.3	$ 3,300.1	$ 1,563.1	$ 1,733.5	$ 3.5

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

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+ Details

- Definition

Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity.

+ References

+ Details