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Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2020	May 01, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
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	NYSE
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		226,740,469
Entity Central Index Key	0001711269
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q1
Amendment Flag	false
Document Fiscal Year Focus	2020
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

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 304.4	$ 23.2
Receivables, net of allowance for credit losses	189.2	228.5
Accounts receivable pledged as collateral	322.0	339.0
Fuel inventory and supplies	498.9	481.6
Income taxes receivable	110.5	85.5
Regulatory assets	228.2	231.7
Prepaid expenses and other assets	79.6	78.2
Total Current Assets	1,732.8	1,467.7
OTHER ASSETS:
Regulatory assets	1,714.5	1,740.5
Nuclear decommissioning trust fund	497.4	573.2
Goodwill	2,336.6	2,336.6
Other	519.9	511.5
Total Other Assets	5,068.4	5,161.8
TOTAL ASSETS	26,184.7	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	1,055.0	561.9
Collateralized note payable	322.0	339.0
Accounts payable	298.1	528.8
Accrued taxes	226.3	145.1
Accrued interest	137.3	122.3
Regulatory liabilities	56.4	63.3
Asset retirement obligations	69.0	71.3
Accrued compensation and benefits	71.4	59.2
Other	142.3	161.6
Total Current Liabilities	2,397.7	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,796.7	1,744.4
Unamortized investment tax credits	373.2	375.4
Regulatory liabilities	2,156.1	2,248.3
Pension and post-retirement liability	1,012.6	1,017.6
Asset retirement obligations	611.6	602.8
Other	337.9	340.7
Total Long-Term Liabilities	15,281.6	15,094.7
Commitments and Contingencies (Note 9)
Evergy, Inc. Shareholders' Equity:
Common stock - 600,000,000 shares authorized, without par value 226,738,748 and 226,641,443 shares issued, stated value	7,072.2	7,070.4
Retained earnings	1,505.7	1,551.5
Accumulated other comprehensive loss	(48.7)	(50.0)
Total Evergy, Inc. Shareholders' Equity	8,529.2	8,571.9
Noncontrolling Interests	(23.8)	(26.6)
Total Equity	8,505.4	8,545.3
TOTAL LIABILITIES AND EQUITY	26,184.7	25,975.9
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	19,223.2	19,184.4
CURRENT LIABILITIES:
Current maturities of long-term debt	1.1	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	8,993.5	8,746.7
Variable Interest Entities
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	160.3	162.0
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	$ 0.0	$ 18.8

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 11.5	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,738,748	226,641,443

Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
OPERATING REVENUES	$ 1,116.7	$ 1,216.9
OPERATING EXPENSES:
Fuel and purchased power	258.2	330.0
SPP network transmission costs	62.0	63.5
Operating and maintenance	288.2	306.9
Depreciation and amortization	218.5	213.6
Taxes other than income tax	92.3	93.3
Total Operating Expenses	919.2	1,007.3
INCOME FROM OPERATIONS	197.5	209.6
OTHER INCOME (EXPENSE):
Investment earnings (loss)	(0.8)	3.2
Other income	2.3	8.2
Other expense	(22.7)	(19.4)
Total Other Expense, Net	(21.2)	(8.0)
Interest expense	96.2	91.1
INCOME BEFORE INCOME TAXES	80.1	110.5
Income tax expense	10.1	9.3
Equity in earnings of equity method investees, net of income taxes	2.2	2.2
NET INCOME	72.2	103.4
Less: Net income attributable to noncontrolling interests	2.8	3.9
Net income attributable to Evergy, Inc.	$ 69.4	$ 99.5
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)	$ 0.31	$ 0.39
Diluted earnings per common share (in dollars per share)	$ 0.31	$ 0.39
AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	227.1	252.8
Diluted (in shares)	227.5	253.0
COMPREHENSIVE INCOME
Net income	$ 72.2	$ 103.4
Derivative hedging activity
Loss on derivative hedging instruments	0.0	(13.8)
Income tax benefit	0.0	3.6
Net loss on derivative hedging instruments	0.0	(10.2)
Reclassification to expenses, net of tax	1.3	0.0
Derivative hedging activity, net of tax	1.3	(10.2)
Total other comprehensive income (loss)	1.3	(10.2)
Comprehensive income	73.5	93.2
Less: comprehensive income attributable to noncontrolling interest	2.8	3.9
COMPREHENSIVE INCOME (LOSS)	$ 70.7	$ 89.3

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 72.2	$ 103.4
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	218.5	213.6
Amortization of nuclear fuel	14.4	14.6
Amortization of deferred refueling outage	6.3	6.5
Amortization of corporate-owned life insurance	6.5	6.6
Non-cash compensation	4.6	5.4
Net deferred income taxes and credits	8.1	(2.0)
Allowance for equity funds used during construction	(1.8)	(0.2)
Payments for asset retirement obligations	(3.1)	(1.2)
Equity in earnings of equity method investees, net of income taxes	(2.2)	(2.2)
Income from corporate-owned life insurance	(1.9)	(9.9)
Other	0.3	(1.3)
Changes in working capital items:
Accounts receivable	42.6	26.6
Accounts receivable pledged as collateral	17.0	6.0
Fuel inventory and supplies	(17.1)	44.6
Prepaid expenses and other current assets	0.4	35.5
Accounts payable	(153.4)	(119.4)
Accrued taxes	83.0	100.2
Other current liabilities	(9.4)	(74.7)
Changes in other assets	39.4	12.8
Changes in other liabilities	(3.8)	(2.8)
Cash Flows from Operating Activities	320.6	362.1
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(354.4)	(309.0)
Purchase of securities - trusts	(18.8)	(17.9)
Sale of securities - trusts	15.0	15.4
Investment in corporate-owned life insurance	(2.0)	(2.1)
Proceeds from investment in corporate-owned life insurance	30.8	40.9
Other investing activities	(4.0)	1.3
Cash Flows used in Investing Activities	(333.4)	(271.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	493.1	572.4
Collateralized short-term borrowings, net	(17.0)	(6.0)
Proceeds from long-term debt	0.0	494.0
Retirements of long-term debt	(1.1)	(1.1)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	0.0	0.6
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(27.8)	(30.1)
Cash dividends paid	(114.5)	(119.8)
Repurchase of common stock under repurchase plan	0.0	(578.3)
Other financing activities	(6.4)	(4.5)
Cash Flows used in Financing Activities	294.0	296.9
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	281.2	387.6
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	$ 304.4	$ 547.9

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Restricted cash	$ 0.0	$ 0.0	$ 414.3	$ 0.0

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, 2018		255,326,252
Beginning balance at Dec. 31, 2018	$ 9,990.7	$ 8,685.2	$ 1,346.0	$ (3.0)	$ (37.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	103.4		99.5		3.9
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		60,594
Issuance of stock compensation and reinvested dividends, net of tax withholding	(1.6)	$ (1.6)
Dividends declared on common stock	(119.8)		(119.8)
Stock compensation expense	5.4	$ 5.4
Repurchase of common stock (in shares)		(10,548,060)
Repurchase of common stock	(578.3)	$ (578.3)
Consolidation of noncontrolling interests	3.8				3.8
Distributions to shareholders of noncontrolling interests	(1.4)				(1.4)
Derivative hedging activity, net of tax	(10.2)			(10.2)
Other	(0.3)	$ (0.3)
Ending balance (in shares) at Mar. 31, 2019		244,838,786
Ending balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	(13.2)	(31.2)
Beginning balance (in shares) at Dec. 31, 2019		226,641,443
Beginning balance at Dec. 31, 2019	8,545.3	$ 7,070.4	1,551.5	(50.0)	(26.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	72.2		69.4		2.8
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		97,305
Issuance of stock compensation and reinvested dividends, net of tax withholding	(3.0)	$ (3.0)
Dividends declared on common stock	(114.5)		(114.5)
Dividend equivalents declared	(0.7)		(0.7)
Stock compensation expense	4.6	4.6
Derivative hedging activity, net of tax	1.3			1.3
Other	0.2	$ 0.2
Ending balance (in shares) at Mar. 31, 2020		226,738,748
Ending balance at Mar. 31, 2020	$ 8,505.4	$ 7,072.2	$ 1,505.7	$ (48.7)	$ (23.8)

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.505	$ 0.475

Consolidated Balance Sheets - Evergy Kansas Central, Inc - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 304.4	$ 23.2
Receivables, net of allowance for credit losses	189.2	228.5
Accounts receivable pledged as collateral	322.0	339.0
Fuel inventory and supplies	498.9	481.6
Income taxes receivable	110.5	85.5
Regulatory assets	228.2	231.7
Prepaid expenses and other assets	79.6	78.2
Total Current Assets	1,732.8	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,223.2	19,184.4
OTHER ASSETS:
Regulatory assets	1,714.5	1,740.5
Nuclear decommissioning trust fund	497.4	573.2
Other	519.9	511.5
Total Other Assets	5,068.4	5,161.8
TOTAL ASSETS	26,184.7	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	1,055.0	561.9
Collateralized note payable	322.0	339.0
Accounts payable	298.1	528.8
Accrued taxes	226.3	145.1
Accrued interest	137.3	122.3
Regulatory liabilities	56.4	63.3
Asset retirement obligations	69.0	71.3
Other	142.3	161.6
Total Current Liabilities	2,397.7	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,796.7	1,744.4
Unamortized investment tax credits	373.2	375.4
Regulatory liabilities	2,156.1	2,248.3
Pension and post-retirement liability	1,012.6	1,017.6
Asset retirement obligations	611.6	602.8
Other	337.9	340.7
Total Long-Term Liabilities	15,281.6	15,094.7
Commitments and Contingencies (Note 9)
Evergy, Inc. Shareholders' Equity:
Common stock - 1,000 shares authorized, $0.01 par value, 1 share issued	7,072.2	7,070.4
Retained earnings	1,505.7	1,551.5
Total Evergy, Inc. Shareholders' Equity	8,529.2	8,571.9
Noncontrolling Interests	(23.8)	(26.6)
Total Equity	8,505.4	8,545.3
TOTAL LIABILITIES AND EQUITY	26,184.7	25,975.9
Evergy Kansas Central
CURRENT ASSETS:
Cash and cash equivalents	73.0	5.2
Receivables, net of allowance for credit losses	142.4	140.4
Related party receivables	1.3	9.9
Accounts receivable pledged as collateral	159.0	171.0
Fuel inventory and supplies	270.9	266.4
Income taxes receivable	33.6	30.4
Regulatory assets	95.2	93.3
Prepaid expenses and other assets	35.8	34.3
Total Current Assets	811.2	750.9
PROPERTY, PLANT AND EQUIPMENT, NET	9,852.0	9,864.9
OTHER ASSETS:
Regulatory assets	721.7	730.4
Nuclear decommissioning trust fund	240.2	272.5
Other	273.2	266.0
Total Other Assets	1,235.1	1,268.9
TOTAL ASSETS	12,058.6	12,046.7
CURRENT LIABILITIES:
Notes payable and commercial paper	370.0	249.2
Collateralized note payable	159.0	171.0
Accounts payable	125.7	200.5
Related party payables	16.8	14.8
Accrued taxes	143.6	98.7
Accrued interest	85.1	74.2
Regulatory liabilities	41.1	42.3
Asset retirement obligations	23.3	23.3
Other	123.1	130.2
Total Current Liabilities	1,106.5	1,286.5
LONG-TERM LIABILITIES:
Deferred income taxes	832.5	817.7
Unamortized investment tax credits	251.2	253.2
Regulatory liabilities	1,091.0	1,132.5
Pension and post-retirement liability	481.8	495.5
Asset retirement obligations	254.2	249.6
Other	154.5	151.8
Total Long-Term Liabilities	6,751.9	6,555.2
Commitments and Contingencies (Note 9)
Evergy, Inc. Shareholders' Equity:
Common stock - 1,000 shares authorized, $0.01 par value, 1 share issued	2,737.6	2,737.6
Retained earnings	1,486.4	1,494.0
Total Evergy, Inc. Shareholders' Equity	4,224.0	4,231.6
Noncontrolling Interests	(23.8)	(26.6)
Total Equity	4,200.2	4,205.0
TOTAL LIABILITIES AND EQUITY	12,058.6	12,046.7
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT LIABILITIES:
Current maturities of long-term debt	1.1	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	8,993.5	8,746.7
Consolidated Entity Excluding Variable Interest Entities (VIE) \| Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	9,852.0	9,864.9
CURRENT LIABILITIES:
Current maturities of long-term debt	0.0	250.0
LONG-TERM LIABILITIES:
Long-term debt, net	3,686.7	3,436.1
Variable Interest Entities
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	0.0	18.8
Variable Interest Entities \| Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	160.3	162.0
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	$ 0.0	$ 18.8

Consolidated Balance Sheets - Evergy Kansas Central, Inc (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Allowance for credit losses	$ 11.5	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,738,748	226,641,443
Evergy Kansas Central
Allowance for credit losses	$ 4.1	$ 3.8
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

Consolidated Statements of Income - Evergy Kansas Central, Inc - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING REVENUES	$ 1,116.7	$ 1,216.9
OPERATING EXPENSES:
Fuel and purchased power	258.2	330.0
SPP network transmission costs	62.0	63.5
Operating and maintenance	288.2	306.9
Depreciation and amortization	218.5	213.6
Taxes other than income tax	92.3	93.3
Total Operating Expenses	919.2	1,007.3
INCOME FROM OPERATIONS	197.5	209.6
OTHER INCOME (EXPENSE):
Investment earnings (loss)	(0.8)	3.2
Other income	2.3	8.2
Other expense	(22.7)	(19.4)
Total Other Expense, Net	(21.2)	(8.0)
Interest expense	96.2	91.1
INCOME BEFORE INCOME TAXES	80.1	110.5
Income tax expense (benefit)	10.1	9.3
Equity in earnings of equity method investees, net of income taxes	2.2	2.2
NET INCOME	72.2	103.4
Less: Net income attributable to noncontrolling interests	2.8	3.9
Net income attributable to Evergy, Inc.	69.4	99.5
Evergy Kansas Central
OPERATING REVENUES	560.1	596.8
OPERATING EXPENSES:
Fuel and purchased power	99.2	122.7
SPP network transmission costs	62.0	63.5
Operating and maintenance	123.7	128.6
Depreciation and amortization	112.1	109.8
Taxes other than income tax	48.6	47.9
Total Operating Expenses	445.6	472.5
INCOME FROM OPERATIONS	114.5	124.3
OTHER INCOME (EXPENSE):
Investment earnings (loss)	(1.7)	1.5
Other income	2.1	7.3
Other expense	(11.5)	(10.6)
Total Other Expense, Net	(11.1)	(1.8)
Interest expense	41.6	44.9
INCOME BEFORE INCOME TAXES	61.8	77.6
Income tax expense (benefit)	7.8	10.5
Equity in earnings of equity method investees, net of income taxes	1.2	1.2
NET INCOME	55.2	68.3
Less: Net income attributable to noncontrolling interests	2.8	3.9
Net income attributable to Evergy, Inc.	$ 52.4	$ 64.4

Consolidated Statements of Cash Flows - Evergy Kansas Central, Inc - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 72.2	$ 103.4
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	218.5	213.6
Amortization of nuclear fuel	14.4	14.6
Amortization of deferred refueling outage	6.3	6.5
Amortization of corporate-owned life insurance	6.5	6.6
Net deferred income taxes and credits	8.1	(2.0)
Allowance for equity funds used during construction	(1.8)	(0.2)
Payments for asset retirement obligations	(3.1)	(1.2)
Equity in earnings of equity method investees, net of income taxes	(2.2)	(2.2)
Income from corporate-owned life insurance	(1.9)	(9.9)
Other	0.3	(1.3)
Changes in working capital items:
Accounts receivable	42.6	26.6
Accounts receivable pledged as collateral	17.0	6.0
Fuel inventory and supplies	(17.1)	44.6
Prepaid expenses and other current assets	0.4	35.5
Accounts payable	(153.4)	(119.4)
Accrued taxes	83.0	100.2
Other current liabilities	(9.4)	(74.7)
Changes in other assets	39.4	12.8
Changes in other liabilities	(3.8)	(2.8)
Cash Flows from Operating Activities	320.6	362.1
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(354.4)	(309.0)
Purchase of securities - trusts	(18.8)	(17.9)
Sale of securities - trusts	15.0	15.4
Investment in corporate-owned life insurance	(2.0)	(2.1)
Proceeds from investment in corporate-owned life insurance	30.8	40.9
Other investing activities	(4.0)	1.3
Cash Flows used in Investing Activities	(333.4)	(271.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	493.1	572.4
Collateralized short-term debt, net	(17.0)	(6.0)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	0.0	0.6
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(27.8)	(30.1)
Cash dividends paid	(114.5)	(119.8)
Other financing activities	(6.4)	(4.5)
Cash Flows used in Financing Activities	294.0	296.9
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	281.2	387.6
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	304.4	547.9
Evergy Kansas Central
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	55.2	68.3
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	112.1	109.8
Amortization of nuclear fuel	7.2	7.3
Amortization of deferred refueling outage	3.1	3.2
Amortization of corporate-owned life insurance	6.5	6.6
Net deferred income taxes and credits	(16.0)	(0.3)
Allowance for equity funds used during construction	(1.9)	0.0
Payments for asset retirement obligations	(0.2)	(0.3)
Equity in earnings of equity method investees, net of income taxes	(1.2)	(1.2)
Income from corporate-owned life insurance	(1.9)	(9.3)
Other	(1.4)	(1.4)
Changes in working capital items:
Accounts receivable	9.1	(7.9)
Accounts receivable pledged as collateral	12.0	0.0
Fuel inventory and supplies	(4.3)	21.9
Prepaid expenses and other current assets	(1.2)	14.8
Accounts payable	(26.3)	(7.2)
Accrued taxes	68.4	59.5
Other current liabilities	(11.0)	(18.9)
Changes in other assets	13.9	4.6
Changes in other liabilities	(10.5)	(7.0)
Cash Flows from Operating Activities	211.6	242.5
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(158.2)	(151.7)
Purchase of securities - trusts	(6.0)	(7.5)
Sale of securities - trusts	4.4	7.2
Investment in corporate-owned life insurance	(2.0)	(2.1)
Proceeds from investment in corporate-owned life insurance	30.8	40.3
Other investing activities	0.2	(0.1)
Cash Flows used in Investing Activities	(130.8)	(113.9)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	120.8	2.1
Collateralized short-term debt, net	(12.0)	0.0
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	0.0	0.6
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(27.8)	(30.1)
Cash dividends paid	(60.0)	(110.0)
Other financing activities	(1.7)	(2.4)
Cash Flows used in Financing Activities	(13.0)	(170.1)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	67.8	(41.5)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	5.2	44.5
End of period	$ 73.0	$ 3.0

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, 2018		255,326,252				1
Beginning balance at Dec. 31, 2018	$ 9,990.7	$ 8,685.2	$ 1,346.0	$ (37.5)	$ 3,960.7	$ 2,737.6	$ 1,260.6	$ (37.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	103.4		99.5	3.9	68.3		64.4	3.9
Dividends declared on common stock	(119.8)		(119.8)		(110.0)		(110.0)
Consolidation of noncontrolling interests	5.4	5.4			3.8			3.8
Distributions to shareholders of noncontrolling interests	(0.3)	$ (0.3)			(1.4)			1.4
Ending balance (in shares) at Mar. 31, 2019		244,838,786				1
Ending balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	(31.2)	3,921.4	$ 2,737.6	1,215.0	(31.2)
Beginning balance (in shares) at Dec. 31, 2019		226,641,443				1
Beginning balance at Dec. 31, 2019	8,545.3	$ 7,070.4	1,551.5	(26.6)	4,205.0	$ 2,737.6	1,494.0	(26.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	72.2		69.4	2.8	55.2		52.4	2.8
Dividends declared on common stock	(114.5)		(114.5)		(60.0)		(60.0)
Consolidation of noncontrolling interests	4.6	4.6
Distributions to shareholders of noncontrolling interests	0.2	$ 0.2
Ending balance (in shares) at Mar. 31, 2020		226,738,748				1
Ending balance at Mar. 31, 2020	$ 8,505.4	$ 7,072.2	$ 1,505.7	$ (23.8)	$ 4,200.2	$ 2,737.6	$ 1,486.4	$ (23.8)

- 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
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Consolidated Balance Sheets - Evergy Metro, Inc - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 304.4	$ 23.2
Receivables, net of allowance for credit losses	189.2	228.5
Accounts receivable pledged as collateral	322.0	339.0
Fuel inventory and supplies	498.9	481.6
Income taxes receivable	110.5	85.5
Regulatory assets	228.2	231.7
Total Current Assets	1,732.8	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,223.2	19,184.4
OTHER ASSETS:
Regulatory assets	1,714.5	1,740.5
Nuclear decommissioning trust fund	497.4	573.2
Other	519.9	511.5
Total Other Assets	5,068.4	5,161.8
TOTAL ASSETS	26,184.7	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	1,055.0	561.9
Collateralized note payable	322.0	339.0
Accounts payable	298.1	528.8
Accrued taxes	226.3	145.1
Accrued interest	137.3	122.3
Regulatory liabilities	56.4	63.3
Asset retirement obligations	69.0	71.3
Accrued compensation and benefits	71.4	59.2
Other	142.3	161.6
Total Current Liabilities	2,397.7	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,796.7	1,744.4
Unamortized investment tax credits	373.2	375.4
Regulatory liabilities	2,156.1	2,248.3
Pension and post-retirement liability	1,012.6	1,017.6
Asset retirement obligations	611.6	602.8
Other	337.9	340.7
Total Long-Term Liabilities	15,281.6	15,094.7
Commitments and Contingencies (Note 9)
EQUITY:
Common stock - 1,000 shares authorized, $0.01 par value, 1 share issued	7,072.2	7,070.4
Retained earnings	1,505.7	1,551.5
Accumulated other comprehensive loss	(48.7)	(50.0)
Total Evergy, Inc. Shareholders' Equity	8,529.2	8,571.9
TOTAL LIABILITIES AND EQUITY	26,184.7	25,975.9
Evergy Metro
CURRENT ASSETS:
Cash and cash equivalents	125.1	2.0
Receivables, net of allowance for credit losses	33.4	48.1
Related party receivables	129.3	93.9
Accounts receivable pledged as collateral	113.0	118.0
Fuel inventory and supplies	175.1	163.0
Income taxes receivable	0.0	8.7
Regulatory assets	100.4	95.4
Prepaid expenses	22.1	22.8
Other assets	16.8	15.0
Total Current Assets	715.2	566.9
PROPERTY, PLANT AND EQUIPMENT, NET	6,864.0	6,839.0
OTHER ASSETS:
Regulatory assets	448.3	464.4
Nuclear decommissioning trust fund	257.2	300.7
Other	131.5	134.1
Total Other Assets	837.0	899.2
TOTAL ASSETS	8,416.2	8,305.1
CURRENT LIABILITIES:
Notes payable and commercial paper	460.0	199.3
Collateralized note payable	113.0	118.0
Accounts payable	135.2	233.6
Related party payables	1.5	4.6
Accrued taxes	69.1	38.8
Accrued interest	36.1	26.7
Regulatory liabilities	7.0	11.4
Asset retirement obligations	34.8	36.1
Accrued compensation and benefits	47.7	45.1
Other	32.2	34.0
Total Current Liabilities	936.6	747.6
LONG-TERM LIABILITIES:
Long-term debt, net	2,525.4	2,525.0
Deferred income taxes	642.8	642.8
Unamortized investment tax credits	119.3	119.6
Regulatory liabilities	739.7	792.2
Pension and post-retirement liability	508.0	499.7
Asset retirement obligations	221.4	217.5
Other	176.8	180.0
Total Long-Term Liabilities	4,933.4	4,976.8
Commitments and Contingencies (Note 9)
EQUITY:
Common stock - 1,000 shares authorized, $0.01 par value, 1 share issued	1,563.1	1,563.1
Retained earnings	978.4	1,012.8
Accumulated other comprehensive loss	4.7	4.8
Total Evergy, Inc. Shareholders' Equity	2,546.2	2,580.7
TOTAL LIABILITIES AND EQUITY	$ 8,416.2	$ 8,305.1

Consolidated Balance Sheets - Evergy Metro, Inc (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Allowance for credit losses	$ 11.5	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,738,748	226,641,443
Evergy Metro
Allowance for credit losses	$ 5.2	$ 4.6
Common stock - shares authorized (in shares)	1,000	1,000
Common stock - shares issued (in shares)	1	1

Consolidated Statements of Comprehensive Income - Evergy Metro, Inc - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
OPERATING REVENUES	$ 1,116.7	$ 1,216.9
OPERATING EXPENSES:
Fuel and purchased power	258.2	330.0
Operating and maintenance	288.2	306.9
Depreciation and amortization	218.5	213.6
Taxes other than income tax	92.3	93.3
Total Operating Expenses	919.2	1,007.3
INCOME FROM OPERATIONS	197.5	209.6
OTHER INCOME (EXPENSE):
Investment earnings (loss)	(0.8)	3.2
Other income	2.3	8.2
Other expense	(22.7)	(19.4)
Total Other Expense, Net	(21.2)	(8.0)
Interest expense	96.2	91.1
INCOME BEFORE INCOME TAXES	80.1	110.5
Income tax expense	10.1	9.3
Net income attributable to Evergy, Inc.	69.4	99.5
Derivative hedging activity
Reclassification to expenses, net of tax:	(1.3)	0.0
Derivative hedging activity, net of tax	1.3	(10.2)
Total other comprehensive income (loss)	1.3	(10.2)
COMPREHENSIVE INCOME (LOSS)	70.7	89.3
Evergy Metro
OPERATING REVENUES	375.5	425.4
OPERATING EXPENSES:
Fuel and purchased power	92.5	134.9
Operating and maintenance	105.9	122.0
Depreciation and amortization	81.4	78.9
Taxes other than income tax	32.0	32.7
Total Operating Expenses	311.8	368.5
INCOME FROM OPERATIONS	63.7	56.9
OTHER INCOME (EXPENSE):
Investment earnings (loss)	0.5	0.8
Other income	0.0	0.8
Other expense	(7.4)	(5.0)
Total Other Expense, Net	(6.9)	(3.4)
Interest expense	28.6	33.8
INCOME BEFORE INCOME TAXES	28.2	19.7
Income tax expense	2.6	3.7
Net income attributable to Evergy, Inc.	25.6	16.0
Derivative hedging activity
Reclassification to expenses, net of tax:	(0.1)	0.9
Derivative hedging activity, net of tax	(0.1)	0.9
Total other comprehensive income (loss)	(0.1)	0.9
COMPREHENSIVE INCOME (LOSS)	$ 25.5	$ 16.9

Consolidated Statements of Cash Flows - Evergy Metro, Inc - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 72.2	$ 103.4
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	218.5	213.6
Amortization of nuclear fuel	14.4	14.6
Amortization of deferred refueling outage	6.3	6.5
Net deferred income taxes and credits	8.1	(2.0)
Allowance for equity funds used during construction	(1.8)	(0.2)
Payments for asset retirement obligations	(3.1)	(1.2)
Other	0.3	(1.3)
Changes in working capital items:
Accounts receivable	42.6	26.6
Accounts receivable pledged as collateral	17.0	6.0
Fuel inventory and supplies	(17.1)	44.6
Prepaid expenses and other current assets	0.4	35.5
Accounts payable	(153.4)	(119.4)
Accrued taxes	83.0	100.2
Other current liabilities	(9.4)	(74.7)
Changes in other assets	39.4	12.8
Changes in other liabilities	(3.8)	(2.8)
Cash Flows from Operating Activities	320.6	362.1
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(354.4)	(309.0)
Purchase of securities - trusts	(18.8)	(17.9)
Sale of securities - trusts	15.0	15.4
Other investing activities	(4.0)	1.3
Cash Flows used in Investing Activities	(333.4)	(271.4)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	493.1	572.4
Collateralized short-term debt, net	(17.0)	(6.0)
Proceeds from long-term debt	0.0	494.0
Cash dividends paid	(114.5)	(119.8)
Cash Flows used in Financing Activities	294.0	296.9
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	281.2	387.6
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	304.4	547.9
Evergy Metro
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	25.6	16.0
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	81.4	78.9
Amortization of nuclear fuel	7.2	7.4
Amortization of deferred refueling outage	3.2	3.2
Net deferred income taxes and credits	(10.2)	(5.0)
Allowance for equity funds used during construction	0.1	(0.2)
Payments for asset retirement obligations	(1.3)	(0.8)
Other	(0.1)	0.6
Changes in working capital items:
Accounts receivable	(22.3)	41.9
Accounts receivable pledged as collateral	5.0	6.0
Fuel inventory and supplies	(12.1)	18.3
Prepaid expenses and other current assets	(8.2)	19.2
Accounts payable	(76.0)	(66.8)
Accrued taxes	39.0	37.4
Other current liabilities	8.3	(31.9)
Changes in other assets	17.7	8.9
Changes in other liabilities	7.9	9.2
Cash Flows from Operating Activities	65.2	142.3
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(135.7)	(114.7)
Purchase of securities - trusts	(12.8)	(10.3)
Sale of securities - trusts	10.6	8.2
Other investing activities	0.1	1.9
Cash Flows used in Investing Activities	(137.8)	(114.9)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short term debt, net	260.7	(0.9)
Collateralized short-term debt, net	(5.0)	(6.0)
Proceeds from long-term debt	0.0	394.0
Cash dividends paid	(60.0)	0.0
Cash Flows used in Financing Activities	195.7	387.1
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	123.1	414.5
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	2.0	2.6
End of period	$ 125.1	$ 417.1

Consolidated Statements of Cash Flows - Evergy Metro, Inc (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Restricted cash	$ 0.0	$ 0.0	$ 414.3	$ 0.0
Evergy Metro
Restricted cash	$ 0.0	$ 0.0	$ 414.3	$ 0.0

Consolidated Statements of Changes in Equity - Evergy Metro, Inc - USD ($) $ in Millions	Total	Common Stock	Retained earnings	Evergy Metro Inc	Evergy Metro Inc Common Stock	Evergy Metro Inc Retained earnings	Evergy Metro Inc AOCI - Net gains (losses) on cash flow hedges
Beginning balance (in shares) at Dec. 31, 2018		255,326,252			1
Beginning balance at Dec. 31, 2018	$ 9,990.7	$ 8,685.2	$ 1,346.0	$ 2,499.8	$ 1,563.1	$ 932.6	$ 4.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	103.4		99.5	16.0		16.0
Dividends declared on common stock	(119.8)		(119.8)
Derivative hedging activity, net of tax	(10.2)			0.9			0.9
Ending balance (in shares) at Mar. 31, 2019		244,838,786			1
Ending balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	2,516.7	$ 1,563.1	948.6	5.0
Beginning balance (in shares) at Dec. 31, 2019		226,641,443			1
Beginning balance at Dec. 31, 2019	8,545.3	$ 7,070.4	1,551.5	2,580.7	$ 1,563.1	1,012.8	4.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	72.2		69.4	25.6		25.6
Dividends declared on common stock	(114.5)		(114.5)	(60.0)		(60.0)
Derivative hedging activity, net of tax	1.3			(0.1)			(0.1)
Ending balance (in shares) at Mar. 31, 2020		226,738,748			1
Ending balance at Mar. 31, 2020	$ 8,505.4	$ 7,072.2	$ 1,505.7	$ 2,546.2	$ 1,563.1	$ 978.4	$ 4.7

- Definition

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

+ References

+ Details

ORGANIZATION AND BASIS OF PRESENTATION

3 Months Ended

Mar. 31, 2020

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 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 14,700 MWs of owned generating capacity and renewable purchased power agreements and engage in the generation, transmission, distribution and sale of electricity to approximately 1.6 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 2019 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 variable interest entities (VIEs) of which they are the primary beneficiary. 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).

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.



	March 31 2020		December 31 2019
Evergy	(millions)
Fuel inventory	$	166.4	$	146.4
Supplies	332.5		335.2
Fuel inventory and supplies	$	498.9	$	481.6
Evergy Kansas Central
Fuel inventory	$	87.6	$	80.2
Supplies	183.3		186.2
Fuel inventory and supplies	$	270.9	$	266.4
Evergy Metro
Fuel inventory	$	57.9	$	46.1
Supplies	117.2		116.9
Fuel inventory and supplies	$	175.1	$	163.0

Property, Plant and Equipment

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



March 31, 2020	Evergy				Evergy Kansas Central				Evergy Metro
		(millions)
Electric plant in service		$	27,995.1			$	13,634.9			$	10,865.3
Electric plant acquisition adjustment		740.6				740.6				—
Accumulated depreciation		(10,460.3		)		(5,034.6		)		(4,340.8		)
Plant in service, net		18,275.4				9,340.9				6,524.5
Construction work in progress		831.0				452.6				281.2
Nuclear fuel, net		115.9				57.6				58.3
Plant to be retired, net^(a)		0.9				0.9				—
Property, plant and equipment, net		$	19,223.2			$	9,852.0			$	6,864.0

December 31, 2019	Evergy				Evergy Kansas Central				Evergy Metro
		(millions)
Electric plant in service		$	27,768.8			$	13,538.1			$	10,776.5
Electric plant acquisition adjustment		740.6				740.6				—
Accumulated depreciation		(10,293.7		)		(4,951.5		)		(4,272.0		)
Plant in service, net		18,215.7				9,327.2				6,504.5
Construction work in progress		839.2				472.8				269.9
Nuclear fuel, net		128.5				63.9				64.6
Plant to be retired, net^(a)		1.0				1.0				—
Property, plant and equipment, net		$	19,184.4			$	9,864.9			$	6,839.0

^(a) As of March 31, 2020, and December 31, 2019, represents the planned retirement of Evergy Kansas Central analog meters prior to the end of their remaining useful lives.

Other Income (Expense), Net

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



Three Months Ended March 31	2020			2019
Evergy	(millions)
Non-service cost component of net benefit cost	$	(16.2	)	$	(13.1	)
Other	(6.5		)	(6.3		)
Other expense	$	(22.7	)	$	(19.4	)
Evergy Kansas Central
Non-service cost component of net benefit cost	$	(5.6	)	$	(4.4	)
Other	(5.9		)	(6.2		)
Other expense	$	(11.5	)	$	(10.6	)
Evergy Metro
Non-service cost component of net benefit cost	$	(6.9	)	$	(5.1	)
Other	(0.5		)	0.1
Other expense	$	(7.4	)	$	(5.0	)

Earnings Per Share

To compute basic earnings per 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), performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

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



Three Months Ended March 31	2020		2019
Income	(millions, except per share amounts)
Net income	$	72.2	$	103.4
Less: Net income attributable to noncontrolling interests	2.8		3.9
Net income attributable to Evergy, Inc.	$	69.4	$	99.5
Common Shares Outstanding
Weighted average number of common shares outstanding - basic	227.1		252.8
Add: Effect of dilutive securities	0.4		0.2
Weighted average number of common shares outstanding - dilutive	227.5		253.0
Basic and Diluted EPS	$	0.31	$	0.39

Anti-dilutive shares excluded from the computation of diluted EPS for the three months ended March 31, 2020 were 175,991 RSUs with performance measures and 58,714 RSUs with only service requirements. There were no anti-dilutive securities excluded from the computation of diluted EPS for the three months ended March 31, 2019.

Dividends Declared

In May 2020, Evergy's Board of Directors (Evergy Board) declared a quarterly dividend of $0.505 per share on Evergy's common stock. The common dividend is payable June 19, 2020, to shareholders of record as of May 20, 2020.

In May 2020, Evergy Kansas Central's Board of Directors declared a cash dividend payable to Evergy of $60.0 million, payable on June 18, 2020.

In May 2020, Evergy Metro's Board of Directors declared a cash dividend payable to Evergy of $20.0 million, payable on June 18, 2020.

Supplemental Cash Flow Information



Evergy
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	86.5	$	59.3
Interest of VIEs	0.6		1.0
Income taxes, net of refunds	0.2		(0.1		)
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6		2.2
Non-cash investing transactions:
Property, plant and equipment additions	75.7		47.1
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.9		0.5
Right-of-use assets obtained in exchange for new finance lease liabilities	3.1		2.3



Evergy Kansas Central
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	37.4	$	32.6
Interest of VIEs	0.6		1.0
Income taxes, net of refunds	0.2		—
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6		—
Non-cash investing transactions:
Property, plant and equipment additions	52.5		27.1
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	1.9		2.3



Evergy Metro
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	18.7	$	19.6
Right-of-use assets obtained in exchange for new operating lease liabilities	—		2.2
Non-cash investing transactions:
Property, plant and equipment additions	17.8		15.9
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	1.2		—

REVENUE

3 Months Ended

Mar. 31, 2020

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.



Three Months Ended March 31, 2020	Evergy			Evergy Kansas Central			Evergy Metro
Revenues		(millions)
Residential		$	402.5		$	167.8		$	147.4
Commercial		384.7			151.1			172.1
Industrial		140.6			92.1			30.1
Other retail		10.6			4.7			3.5
Total electric retail		$	938.4		$	415.7		$	353.1
Wholesale		63.5			54.8			6.8
Transmission		75.6			68.2			3.1
Industrial steam and other		8.4			3.5			0.4
Total revenue from contracts with customers		$	1,085.9		$	542.2		$	363.4
Other		30.8			17.9			12.1
Operating revenues		$	1,116.7		$	560.1		$	375.5



Three Months Ended March 31, 2019	Evergy			Evergy Kansas Central			Evergy Metro
Revenues		(millions)
Residential		$	451.7		$	192.3		$	164.2
Commercial		413.5			164.3			183.8
Industrial		147.0			98.4			29.7
Other retail		9.8			5.1			2.6
Total electric retail		$	1,022.0		$	460.1		$	380.3
Wholesale		83.1			61.3			18.1
Transmission		76.7			69.2			3.1
Industrial steam and other		3.3			1.7			1.4
Total revenue from contracts with customers		$	1,185.1		$	592.3		$	402.9
Other		31.8			4.5			22.5
Operating revenues		$	1,216.9		$	596.8		$	425.4

RECEIVABLES

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

RECEIVABLES

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



	March 31 2020			December 31 2019
Evergy	(millions)
Customer accounts receivable - billed	$	3.9		$	7.2
Customer accounts receivable - unbilled	63.6			104.0
Other receivables	133.2			127.8
Allowance for credit losses	(11.5		)	(10.5		)
Total	$	189.2		$	228.5
Evergy Kansas Central
Customer accounts receivable - billed	$	—		$	—
Customer accounts receivable - unbilled	26.1			49.7
Other receivables	120.4			94.5
Allowance for credit losses	(4.1		)	(3.8		)
Total	$	142.4		$	140.4
Evergy Metro
Customer accounts receivable - billed	$	3.3		$	3.1
Customer accounts receivable - unbilled	16.9			26.5
Other receivables	18.4			23.1
Allowance for credit losses	(5.2		)	(4.6		)
Total	$	33.4		$	48.1

Evergy's, Evergy Kansas Central's and Evergy Metro's other receivables at March 31, 2020 and December 31, 2019, 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.



	March 31 2020		December 31 2019
	(millions)
Evergy	$	45.8	$	42.0
Evergy Kansas Central	43.9		37.7
Evergy Metro	1.3		1.2

Allowance for Credit Losses

Historical loss information generally provides the basis for the Evergy Companies' assessment of expected credit losses. The Evergy Companies use an aging of accounts receivable method to assess historical loss information. When historical experience may not fully reflect the Evergy Companies' expectations about the future, the Evergy Companies will adjust historical loss information, as necessary, to reflect the current conditions and reasonable and supportable forecasts not already reflected in the historical loss information. The Evergy Companies have made an insignificant adjustment to their allowance for credit losses as of March 31, 2020 to reflect their belief that historical loss information does not reflect current conditions that have resulted from the economic slowdown resulting from the Coronavirus (COVID-19) pandemic.

Receivables are charged off when they are deemed uncollectible, which is based on a number of factors including specific facts surrounding an account and management's judgment.

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



Three Months Ended March 31	2020			2019
Evergy	(millions)
Beginning balance	$	10.5		$	9.2
Credit loss expense	2.7			3.8
Write-offs	(5.0		)	(6.5		)
Recoveries of prior write-offs	3.3			3.3
Ending balance	$	11.5		$	9.8
Evergy Kansas Central
Beginning balance	$	3.8		$	3.9
Credit loss expense	0.8			(0.5		)
Write-offs	(1.2		)	(0.2		)
Recoveries of prior write-offs	0.7			1.0
Ending balance	$	4.1		$	4.2
Evergy Metro
Beginning balance	$	4.6		$	3.8
Credit loss expense	1.4			2.8
Write-offs	(2.6		)	(4.2		)
Recoveries of prior write-offs	1.8			1.6
Ending balance	$	5.2		$	4.0

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.



	March 31 2020		December 31 2019
	(millions)
Evergy	$	322.0	$	339.0
Evergy Kansas Central	159.0		171.0
Evergy Metro	113.0		118.0

Each receivable sale facility expires in September 2020. Evergy Kansas Central's facility allows for $185.0 million in aggregate outstanding principal amount of borrowings from mid-October through mid-June and then $200.0 million from mid-June through the expiration date of the facility. Evergy Metro's facility allows for $130.0 million in aggregate outstanding principal amount of borrowings at any time. Evergy Missouri West's facility allows for $50.0 million in aggregate outstanding principal amount of borrowings from mid-November through mid-June and then $65.0 million from mid-June through the expiration date of the facility.

RATE MATTERS AND REGULATION	3 Months Ended
RATE MATTERS AND REGULATION	Mar. 31, 2020
Regulated Operations [Abstract]
RATE MATTERS AND REGULATION	RATE MATTERS AND REGULATION KCC Proceedings Evergy Kansas Central 2020 Transmission Delivery Charge (TDC) In March 2020, the State Corporation Commission of the State of Kansas (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 April 2020 and are expected to increase Evergy Kansas Central's annual retail revenues by $3.5 million. Evergy Metro 2020 TDC In April 2020, 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 2020 and are expected to decrease Evergy Metro's annual retail revenues by $2.7 million. Evergy Kansas Central and Evergy Metro Earnings Review and Sharing Plan (ERSP) As part of their merger settlement agreement with the KCC, Evergy Kansas Central and Evergy Metro agreed to participate in an ERSP for the years 2019 through 2022. Under the ERSP, Evergy Kansas Central's and Evergy Metro's Kansas jurisdiction are required to refund to customers 50% of annual earnings in excess of their authorized return on equity of 9.3% to the extent the excess earnings exceed the amount of Evergy Kansas Central's and Evergy Metro's annual merger bill credits for the year being measured. Evergy Kansas Central's and Evergy Metro's 2019 calculations of annual earnings did not exceed their authorized return on equity of 9.3% and therefore did not result in any customer refund obligations. These calculations were filed with the KCC in April 2020. As of March 31, 2020, Evergy Kansas Central and Evergy Metro estimate their 2020 annual earnings will not result in a refund obligation. The final refund obligations for 2019 and 2020, if any, will be decided by the KCC and could vary from the current estimates. Evergy Kansas Central and Evergy Metro COVID-19 Accounting Authority Order (AAO) Request In May 2020, Evergy Kansas Central and Evergy Metro filed a request for an AAO with the KCC that would allow for the extraordinary costs and financial impacts incurred by the companies as a result of the COVID-19 pandemic to be considered for future recovery from customers as part of their next rate case. A decision by the KCC regarding the AAO request is expected in the second half of 2020. MPSC Proceedings Evergy Missouri West Other Proceedings In December 2018, the Office of the Public Counsel (OPC) and the Midwest Energy Consumers Group (MECG) filed a petition with the Public Service Commission of the State of Missouri (MPSC) requesting an AAO that would require Evergy Missouri West to record a regulatory liability for all revenues collected from customers for return on investment, non-fuel operations and maintenance costs, taxes including accumulated deferred income taxes, and all other costs associated with Sibley Station following the station’s retirement in November 2018. In October 2019, the MPSC granted OPC's and MECG's request for an AAO and required Evergy Missouri West to record to a regulatory liability the revenues discussed above for consideration in Evergy Missouri West's next rate case, which is expected to be completed no later than 2022. Depending on the MPSC's decision in this next rate case, Evergy Missouri West could be required to refund to customers all or a portion of amounts collected in revenue for Sibley Station since December 2018 or, alternatively, could be required to make no refunds. As a result of the MPSC order, Evergy has recorded a regulatory liability of $12.9 million as of March 31, 2020 for the estimated amount of revenues that Evergy Missouri West has collected from customers for Sibley Station since December 2018 that Evergy has determined is probable of refund. Evergy expects that it will continue to defer such amounts as collected from customers until new rates become effective in Evergy Missouri West's next rate case. The accrual for this estimated amount does not include certain revenues collected related to Sibley Station that Evergy has determined to not be probable of refund in the next rate case based on the relevant facts and circumstances. While Evergy has determined these additional revenues to not be probable of refund, the ultimate resolution of this matter in Evergy Missouri West's next rate case is uncertain and could result in an estimated loss of up to approximately $12 million per year in excess of the amount accrued until Evergy Missouri West's new rates become effective. Evergy's regulatory liability for probable refunds as of March 31, 2020 and estimated loss in excess of the amount accrued represent estimates that could change significantly based on ongoing developments including as a result of an appeal of the MPSC order, decisions in other regulatory proceedings that establish precedent applicable to this matter and positions of parties on this issue in a future Evergy Missouri West rate case. Evergy Metro and Evergy Missouri West COVID-19 AAO Request In May 2020, Evergy Metro and Evergy Missouri West filed a request for an AAO with the MPSC that would allow for the extraordinary costs and financial impacts incurred by the companies as a result of the COVID-19 pandemic to be considered for future recovery from customers as part of their next rate case. A decision by the MPSC regarding the AAO request is expected in the second half of 2020. FERC Proceedings Evergy Kansas Central TFR Evergy Kansas Central's TFR, effective in January 2020, includes projected 2020 transmission capital expenditures and operating costs and is expected to increase annual transmission revenues by $6.8 million when compared to 2019. This rate is the most material and significant component in the retail rate calculation for Evergy Kansas Central's annual request with the KCC to adjust retail prices to include updated transmission costs through the TDC. Evergy Metro TFR Evergy Metro's TFR, effective in January 2020, includes projected 2020 transmission capital expenditures and operating costs and is expected to decrease annual transmission revenues by $1.7 million when compared to 2019. This rate is the most material and significant component in the retail rate calculation for Evergy Metro's annual request with the KCC to adjust retail prices to include updated transmission costs through the TDC.

PENSION PLANS AND POST-RETIREMENT BENEFITS

3 Months Ended

Mar. 31, 2020

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 Generating Station's (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.

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 March 31, 2020	Evergy			Evergy Kansas Central			Evergy Metro			Evergy			Evergy Kansas Central			Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	19.6		$	6.8		$	12.8		$	0.7		$	0.3		$	0.4
Interest cost	24.4			11.8			12.6			2.3			1.2			1.1
Expected return on plan assets	(26.7		)	(13.3		)	(14.1		)	(2.3		)	(1.7		)	(0.7		)
Prior service cost	0.4			0.4			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	11.4			8.4			11.3			0.1			—			(0.1		)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	29.1			14.1			22.8			0.9			(0.1		)	0.7
Regulatory adjustment	9.9			0.4			1.4			(0.9		)	(0.7		)	—
Intercompany allocations	—			—			(6.2		)	—			—			0.2
Net periodic benefit costs (income)	$	39.0		$	14.5		$	18.0		$	—		$	(0.8	)	$	0.9



	Pension Benefits									Post-Retirement Benefits
Three Months Ended March 31, 2019	Evergy			Evergy Kansas Central			Evergy Metro			Evergy			Evergy Kansas Central			Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	19.1		$	7.3		$	11.8		$	0.6		$	0.3		$	0.3
Interest cost	27.5			13.4			14.1			2.6			1.4			1.2
Expected return on plan assets	(27.1		)	(13.7		)	(12.3		)	(2.4		)	(1.7		)	(0.7		)
Prior service cost	0.5			0.4			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	6.9			6.4			12.2			(0.3		)	(0.1		)	(0.4		)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	26.9			13.8			26.0			0.6			—			0.4
Regulatory adjustment	(0.1		)	0.5			(0.6		)	(0.7		)	(0.8		)	0.1
Intercompany allocations	—			—			(6.9		)	—			—			(0.1		)
Net periodic benefit costs (income)	$	26.8		$	14.3		$	18.5		$	(0.1	)	$	(0.8	)	$	0.4

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.

For the three months ended March 31, 2020, Evergy, Evergy Kansas Central and Evergy Metro made pension contributions of $21.4 million, $18.0 million and $3.4 million, respectively. Evergy expects to make additional pension contributions of $106.7 million in 2020 to satisfy the Employee Retirement Income Security Act of 1974, as amended (ERISA) funding requirements and KCC and MPSC rate orders, of which $27.5 million is expected to be paid by Evergy Kansas Central and $79.2 million is expected to be paid by Evergy Metro. Also in 2020, Evergy, Evergy Kansas Central and Evergy Metro expect to make contributions of $3.8 million, $0.8 million and $3.0 million, respectively, to the post-retirement benefit plans.

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

3 Months Ended

Mar. 31, 2020

Debt Disclosure [Abstract]

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

Evergy's $2.5 billion master credit facility expires in 2023. 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. 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 March 31, 2020, 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 March 31, 2020 and December 31, 2019.



			Amounts Drawn
	Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
March 31, 2020	(millions)
Evergy, Inc.	$	450.0	n/a		$	0.7	$	55.0	$	394.3	1.98%
Evergy Kansas Central	1,000.0		—		24.5		370.0		605.5		2.09%
Evergy Metro	600.0		—		—		460.0		140.0		1.96%
Evergy Missouri West	450.0		—		2.1		170.0		277.9		2.22%
Evergy	$	2,500.0	$	—	$	27.3	$	1,055.0	$	1,417.7

December 31, 2019
Evergy, Inc.	$	450.0	n/a		$	0.7	$	20.0	$	429.3	2.99%
Evergy Kansas Central	1,000.0		249.2		14.2		—		736.6		2.07%
Evergy Metro	600.0		199.3		—		—		400.7		2.02%
Evergy Missouri West	450.0		93.4		2.1		—		354.5		2.02%
Evergy	$	2,500.0	$	541.9	$	17.0	$	20.0	$	1,921.1

LONG-TERM DEBT	3 Months Ended
LONG-TERM DEBT	Mar. 31, 2020
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT Mortgage Bonds In April 2020, Evergy Kansas Central issued, at a discount, $500.0 million of 3.45% First Mortgage Bonds (FMBs), maturing in 2050 and issued a notice of redemption for its $250.0 million of 5.10% FMBs, which had an original maturity date of July 2020. The proceeds from the issuance of Evergy Kansas Central's $500.0 million of 3.45% FMBs will be used to redeem the $250.0 million of 5.10% FMBs in May 2020 and for general corporate purposes. As a result of the issuance of the $500.0 million of 3.45% FMBs discussed above, Evergy Kansas Central has the intent and ability to refinance its $250.0 million of 5.10% FMBs and has reflected this issuance within long-term debt, net rather than current maturities of long-term debt on Evergy's and Evergy Kansas Central's consolidated balance sheets as of March 31, 2020.

FAIR VALUE MEASUREMENTS

3 Months Ended

Mar. 31, 2020

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.

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 or other financial instruments priced with models using highly observable inputs.

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.

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.

Interest Rate Derivatives

The Evergy Companies are exposed to market risks arising from changes in interest rates and may use derivative instruments to manage these risks. From time to time, risk management activities may include entering into interest rate swap agreements to protect against unfavorable interest rate changes relating to forecasted debt transactions. These interest rate swap agreements can be designated as cash flow hedges, in which case gains and losses on the interest rate swaps are deferred in other comprehensive income to be recognized as an adjustment to interest expense over the same period that the hedged interest payments affect earnings. The Evergy Companies classify all cash inflows and outflows for interest rate swap agreements accounted for as cash flow hedges of forecasted debt transactions as financing activities on their consolidated statements of cash flows.

In September 2019, Evergy issued $800.0 million of 2.90% Senior Notes maturing in 2029 and paid $69.8 million to settle an interest rate swap agreement with a notional amount of $500.0 million that was designated as a cash flow hedge of interest payments on the debt issuance. The $69.8 million pre-tax loss was recorded in accumulated other comprehensive loss on Evergy's consolidated balance sheet and is being reclassified to interest expense over the ten-year term of the debt. For the three months ended March 31, 2020, $1.7 million and ($0.4) million were reclassified from accumulated other comprehensive loss to interest expense and income tax expense, respectively, on Evergy's consolidated statements of comprehensive income. As of March 31, 2020, Evergy expects to amortize $5.2 million to earnings from accumulated other comprehensive loss over the next twelve months.

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 and long-term debt of variable interest entities is summarized in the following table.



	March 31, 2020				December 31, 2019
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt^(a)	(millions)
Evergy^(b)	$	8,994.6	$	9,438.8	$	8,997.8	$	9,750.2
Evergy Kansas Central	3,686.7		4,188.7		3,686.1		4,078.8
Evergy Metro	2,525.4		2,613.8		2,525.0		2,932.2
Long-term debt of variable interest entities^(a)
Evergy	$	18.8	$	18.9	$	51.1	$	51.5
Evergy Kansas Central	18.8		18.9		51.1		51.5

^(a)Includes current maturities.

^(b)Book value as of March 31, 2020 and December 31, 2019, includes $121.7 million and $125.5 million, respectively, of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy Incorporated (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 the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis.



Description	March 31, 2020			Level 1		Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust^(a)
Domestic equity funds		$	70.7	$	63.5		$	—		$	—		$	7.2
International equity funds		41.9		41.9			—			—			—
Core bond fund		37.9		37.9			—			—			—
High-yield bond fund		18.8		18.8			—			—			—
Emerging markets bond fund		16.3		16.3			—			—			—
Combination debt/equity/other fund		13.9		13.9			—			—			—
Alternative investments fund		25.3		—			—			—			25.3
Real estate securities fund		12.8		—			—			—			12.8
Cash equivalents		2.6		2.6			—			—			—
Total nuclear decommissioning trust		240.2		194.9			—			—			45.3
Rabbi trust
Core bond fund		23.4		—			—			—			23.4
Combination debt/equity/other fund		5.9		—			—			—			5.9
Cash equivalents		0.1		0.1			—			—			—
Total rabbi trust		29.4		0.1			—			—			29.3
Total		$	269.6	$	195.0		$	—		$	—		$	74.6
Evergy Metro
Assets
Nuclear decommissioning trust^(a)
Equity securities		$	161.2	$	161.2		$	—		$	—		$	—
Debt securities
U.S. Treasury		53.2		53.2			—			—			—
U.S. Agency		0.5		—			0.5			—			—
State and local obligations		2.1		—			2.1			—			—
Corporate bonds		35.7		—			35.7			—			—
Foreign governments		0.1		—			0.1			—			—
Cash equivalents		3.7		3.7			—			—			—
Other		0.7		—			0.7			—			—
Total nuclear decommissioning trust		257.2		218.1			39.1			—			—
Self-insured health plan trust^(b)
Equity securities		0.4		0.4			—			—			—
Debt securities		6.5		1.4			5.1			—			—
Cash and cash equivalents		5.0		5.0			—			—			—
Total self-insured health plan trust		11.9		6.8			5.1			—			—
Total		$	269.1	$	224.9		$	44.2		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.2	$	—		$	—		$	—		$	13.2
Cash and cash equivalents		0.5		0.5			—			—			—
Total rabbi trusts		$	13.7	$	0.5		$	—		$	—		$	13.2
Evergy
Assets
Nuclear decommissioning trust^(a)		$	497.4	$	413.0		$	39.1		$	—		$	45.3
Rabbi trusts		43.1		0.6			—			—			42.5
Self-insured health plan trust^(b)		11.9		6.8			5.1			—			—
Total		$	552.4	$	420.4		$	44.2		$	—		$	87.8



Description	December 31, 2019			Level 1			Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust^(a)
Domestic equity funds		$	86.1		$	78.6		$	—		$	—		$	7.5
International equity funds		52.0			52.0			—			—			—
Core bond fund		39.3			39.3			—			—			—
High-yield bond fund		22.3			22.3			—			—			—
Emerging markets bond fund		19.4			19.4			—			—			—
Combination debt/equity/other fund		16.4			16.4			—			—			—
Alternative investments fund		23.9			—			—			—			23.9
Real estate securities fund		12.6			—			—			—			12.6
Cash equivalents		0.5			0.5			—			—			—
Total nuclear decommissioning trust		272.5			228.5			—			—			44.0
Rabbi trust
Core bond fund		25.3			—			—			—			25.3
Combination debt/equity/other fund		6.3			—			—			—			6.3
Cash equivalents		0.1			0.1			—			—			—
Total rabbi trust		31.7			0.1			—			—			31.6
Total		$	304.2		$	228.6		$	—		$	—		$	75.6
Evergy Metro
Assets
Nuclear decommissioning trust^(a)
Equity securities		$	211.1		$	211.1		$	—		$	—		$	—
Debt securities
U.S. Treasury		50.3			50.3			—			—			—
U.S. Agency		0.4			—			0.4			—			—
State and local obligations		2.2			—			2.2			—			—
Corporate bonds		33.2			—			33.2			—			—
Foreign governments		0.1			—			0.1			—			—
Cash equivalents		3.1			3.1			—			—			—
Other		0.3			—			0.3			—			—
Total nuclear decommissioning trust		300.7			264.5			36.2			—			—
Self-insured health plan trust^(b)
Equity securities		0.5			0.5			—			—			—
Debt securities		6.7			1.4			5.3			—			—
Cash and cash equivalents		2.7			2.7			—			—			—
Total self-insured health plan trust		9.9			4.6			5.3			—			—
Total		$	310.6		$	269.1		$	41.5		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.3		$	—		$	—		$	—		$	13.3
Cash and cash equivalents		0.5			0.5			—			—			—
Total rabbi trusts		$	13.8		$	0.5		$	—		$	—		$	13.3
Evergy
Assets
Nuclear decommissioning trust^(a)		$	573.2		$	493.0		$	36.2		$	—		$	44.0
Rabbi trust		45.5			0.6			—			—			44.9
Self-insured health plan trust^(b)		9.9			4.6			5.3			—			—
Total		$	628.6		$	498.2		$	41.5		$	—		$	88.9


^(a)	Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.


^(b)	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.



	March 31, 2020				December 31, 2019				March 31, 2020
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Evergy Kansas Central	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	7.2	$	3.2	$	7.5	$	3.3	(a)	(a)
Alternative investments fund^(b)	25.3		—		23.9		—		Quarterly	65 days
Real estate securities fund^(b)	12.8		—		12.6		—		Quarterly	65 days
Total	$	45.3	$	3.2	$	44.0	$	3.3
Rabbi trust:
Core bond fund	$	23.4	$	—	$	25.3	$	—	(c)	(c)
Combination debt/equity/other fund	5.9		—		6.3		—		(c)	(c)
Total	$	29.3	$	—	$	31.6	$	—
Other Evergy
Rabbi trusts:
Fixed income fund	$	13.2	$	—	$	13.3	$	—	(c)	(c)
Total Evergy investments at NAV	$	87.8	$	3.2	$	88.9	$	3.3

^(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. Three funds have begun to make distributions. The initial investment in the fourth and fifth fund occurred in 2016 and 2018, respectively. The fourth fund's term is 15 years, subject to the general partner's right to extend the term for up to three additional one-year periods. The fifth fund's term will be 15 years after the initial closing date, subject to additional extensions approved by a fund advisory committee to provide for an orderly liquidation of fund investments and dissolution of the fund.


^(b)	There is a holdback on final redemptions.


^(c)	This investment can be redeemed immediately and is not subject to any restrictions on 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 March 31	2020			2019
Evergy	(millions)
Nuclear decommissioning trust - equity securities	$	(89.3	)	$	37.9
Nuclear decommissioning trust - debt securities	3.0			2.1
Rabbi trusts - equity securities	(2.0		)	0.5
Total	$	(88.3	)	$	40.5
Evergy Kansas Central
Nuclear decommissioning trust - equity securities	$	(38.1	)	$	17.2
Rabbi trusts - equity securities	(2.1		)	1.3
Total	$	(40.2	)	$	18.5
Evergy Metro
Nuclear decommissioning trust - equity securities	$	(51.2	)	$	20.7
Nuclear decommissioning trust - debt securities	3.0			2.1
Total	$	(48.2	)	$	22.8

- 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

COMMITMENTS AND CONTINGENCIES	3 Months Ended
COMMITMENTS AND CONTINGENCIES	Mar. 31, 2020
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 and regulations can also change, restrict or otherwise impact the Evergy Companies' operations or financial results in many ways, including the handling or disposal of waste material and the planning for future construction activities. The failure to comply with these laws and regulations could result in the assessment of administrative, civil and criminal penalties and/or the imposition of remedial requirements. The Evergy Companies believe that all of 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. Cross-State Air Pollution Update Rule In September 2016, the Environmental Protection Agency (EPA) finalized the Cross-State Air Pollution (CSAPR) Update Rule. The final rule addresses interstate transport of nitrogen oxides emissions in 22 states including Kansas, Missouri and Oklahoma during the ozone season and the impact from the formation of ozone on downwind states with respect to the 2008 ozone National Ambient Air Quality Standards (NAAQS). In December 2018, the EPA finalized a determination, known as the CSAPR Close-Out Rule, demonstrating the CSAPR Update Rule fully addressed certain upwind states' 2008 ozone NAAQS interstate transport obligations. Various states and others have challenged both the CSAPR Update Rule and the CSAPR Close-Out Rule in the U.S. Court of Appeals for the D.C. Circuit (D.C. Circuit). In the fourth quarter of 2019, the D.C. Circuit granted these petitions and remanded a portion of the CSAPR Update Rule back to the EPA and vacated the CSAPR Close-Out Rule in its entirety. The impact of any future CSAPR Rules on the Evergy Companies' operations or consolidated financial results cannot be determined and could be material. 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 federal Clean Air Act Amendments of 1990 (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 August 2018, the EPA published in the Federal Register proposed regulations, which contained (1) emission guidelines for GHG emissions from existing electric utility generating units (EGUs), (2) revisions to emission guideline implementing regulations and (3) revisions to the new source review (NSR) program. These emission guidelines are better known as the Affordable Clean Energy (ACE) Rule. In July 2019, the EPA published in the Federal Register the final ACE Rule with one significant change from the proposal. The NSR program revisions were not included in the final version of the ACE Rule and are expected to be addressed in a future rulemaking. The ACE Rule establishes emission guidelines for states to use in the development of plans to reduce GHG emissions from existing coal-fired EGUs. This rule defines the "best system of emission reduction" (BSER) for GHG emissions from existing coal-fired EGUs as on-site, heat-rate efficiency improvements. The final rule also provides states with a list of candidate technologies that can be used to establish standards of performance and incorporate these performance standards into state plans. In order for the states to be able to effectively implement the emission guidelines contained in the ACE Rule, the EPA is finalizing new regulations under Section 111(d) of the CAA to help clarify this process. The ACE Rule became effective in September 2019. In conjunction with the finalization of the ACE Rule, the EPA repealed its previously adopted Clean Power Plan (CPP). Also, in September 2019, the D.C. Circuit granted motions to dismiss challenges to the CPP and challenges to EPA's denial of reconsideration of the CPP. Due to uncertainty regarding what future state implementation plans will require for compliance with the ACE Rule as well as legal challenges that have been filed, the Evergy Companies cannot determine the impact of the rule on their operations or consolidated financial results, but the cost to comply with the ACE Rule, should it be upheld and implemented in its current or a substantially similar form, could be material. Water The Evergy Companies discharge some of the water used in generation and other operations containing substances deemed to be pollutants. A November 2015 EPA rule establishes effluent limitations guidelines (ELG) and standards for wastewater discharges, including limits on the amount of toxic metals and other pollutants that can be discharged. Implementation timelines for this 2015 rule vary from 2018 to 2023. In April 2019, the U.S. Court of Appeals for the 5th Circuit (5th Circuit) issued a ruling that vacates and remands portions of the original ELG rule. Due to this ruling, future ELG modifications for the best available technology economically achievable for the legacy wastewater and leachate are likely. In November 2019, the EPA published a proposed modification to the ELG rule. The proposed rule modifies numeric limits for flue gas desulfurization (FGD) wastewater and added a 10% volumetric purge limit for bottom ash transport water. The timeline for final FGD wastewater compliance was also delayed by two years to December 31, 2025. The Evergy Companies are in the process of reviewing the proposed rule and the costs to comply with these changes could be material. In October 2014, the EPA's final standards for cooling water intake structures at power plants to protect aquatic life took effect. The standards, based on Section 316(b) of the federal Clean Water Act (CWA), require subject facilities to choose among seven best available technology options to reduce fish impingement. In addition, some facilities must conduct studies to assist permitting authorities to determine whether and what site-specific controls, if any, would be required to reduce entrainment of aquatic organisms. The Evergy Companies' current analysis indicates this rule will not have a significant impact on their coal plants that employ cooling towers or cooling lakes that can be classified as closed cycle cooling and do not expect the impact from this rule to be material. Plants without closed cycle cooling are under evaluation for compliance with these standards and may require additional controls, the costs of which could be material. Evergy Metro holds a permit from the Missouri Department of Natural Resources (MDNR) covering water discharge from its Hawthorn Station. The permit authorizes Evergy Metro to, among other things, withdraw water from the Missouri River for cooling purposes and return the heated water to the Missouri River. Evergy Metro has applied for a renewal of this permit and the EPA has submitted an interim objection letter regarding the allowable amount of heat that can be contained in the returned water. Until this matter is resolved, Evergy Metro continues to operate under its current permit. Evergy and Evergy Metro cannot predict the outcome of this matter; however, while less significant outcomes are possible, this matter may require a reduction in generation, installation of cooling towers or other technology to cool the water, or both, any of which could have a material impact on Evergy's and Evergy Metro's operations and consolidated financial results. In April 2020, the U.S. District Court for the District of Montana (District Court of Montana) ruled that the U.S. Army Corps of Engineers' (Corps) reissuance of Nationwide Permit 12 (NWP 12) in 2017 violated the Endangered Species Act (ESA). The District Court of Montana determined that the Corps failed to initiate consultation under ESA to ensure that discharge activities under NWP 12 complied with the ESA. As a result, the District Court of Montana remanded NWP 12 to the Corps, vacated NWP 12 pending completion of the ESA consultation process and enjoined the Corps from authorizing any dredge or fill activities under NWP 12. The Evergy Companies utilize NWP 12 in the regulatory approval of various types of projects. The Evergy Companies are in the process of reviewing the ruling and resulting actions of the Corps and the impact to the Evergy Companies' operations and consolidated financial results could be material. Regulation of Coal Combustion Residuals In the course of operating their coal generation plants, the Evergy Companies produce coal combustion residuals (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 March 2019, the D.C. Circuit issued a ruling to grant the EPA's request to remand the Phase I, Part I CCR rule. This was in response to a prior court ruling requiring the EPA to address un-lined surface impoundment closure requirements. On December 2, 2019, the EPA published a proposed rule called the Part A CCR Rule. This proposal reclassifies clay-lined surface impoundments from "lined" to "unlined" and establishes a deadline of August 31, 2020 to initiate closure. The prior rule included a deadline of October 31, 2020 for unlined impoundments to initiate closure. In March 2020, the EPA published a proposed rule called the Part B CCR Rule. This proposal includes a process to allow unlined impoundments to continue to operate if a demonstration is made to prove that they are not adversely impacting groundwater, human health or the environment. The proposal also includes clarification regarding ash used in the closure of landfills and surface impoundments. The Evergy Companies are in the process of reviewing these proposed rules and the costs to comply with these changes could be material. The Evergy Companies have recorded asset retirement obligations (AROs) for their current estimates for the closure of ash disposal ponds, but the revision of these AROs may be required in the future due to 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. If revisions to these AROs are necessary, the impact on the Evergy Companies' operations or consolidated financial results could be material. Storage of Spent Nuclear Fuel Under the Nuclear Waste Policy Act of 1982, the Department of Energy (DOE) is responsible for the permanent disposal of spent nuclear fuel. In 2010, the DOE filed a motion with the Nuclear Regulatory Commission (NRC) to withdraw its application to construct a national repository for the disposal of spent nuclear fuel and high-level radioactive waste at Yucca Mountain, Nevada. The NRC has not yet issued a final decision on the matter. Wolf Creek has elected to build a dry cask storage facility to expand its existing on-site spent nuclear fuel storage, which is expected to provide additional capacity prior to 2022. The Evergy Companies expect that the majority of the costs to construct the dry cask storage facility that would not have otherwise been incurred had the DOE begun accepting spent nuclear fuel will be reimbursed by the DOE. The Evergy Companies cannot predict, when, or if, an off-site storage site or alternative disposal site will be available to receive Wolf Creek's spent nuclear fuel and will continue to monitor this activity.

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS

3 Months Ended

Mar. 31, 2020

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

Evergy Metro employees 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. Evergy Kansas Central employees manage Jeffrey Energy Center (JEC) and operate its facilities at cost, including Evergy Missouri West's 8% ownership interest in JEC. Evergy Metro employees manage La Cygne Station and operate its facilities at cost, including Evergy Kansas Central's 50% interest in La Cygne Station. Evergy Metro and Evergy Kansas Central employees 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 March 31	2020		2019
	(millions)
Evergy Metro billings to Evergy Missouri West	$	39.3	$	42.0
Evergy Kansas Central billings to Evergy Missouri West	4.3		6.3
Evergy Metro billings to Evergy Kansas Central	48.1		31.5
Evergy Kansas Central billings to Evergy Metro	15.0		7.4

Money Pool

Evergy Metro and Evergy Missouri West are also 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 to Evergy Metro and Evergy Missouri West from Evergy, Inc. and between Evergy Metro and Evergy Missouri West. At March 31, 2020 and December 31, 2019, Evergy Metro had no outstanding receivables or payables under the money pool.

Related Party Net Receivables and Payables

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



	March 31			December 31
	2020			2019
Evergy Kansas Central	(millions)
Net receivable from Evergy Missouri West	$	1.3		$	3.1
Net payable to Evergy Metro	(16.1		)	(14.9		)
Net receivable from (payable to) Evergy	(0.7		)	6.9

Evergy Metro
Net receivable from Evergy Missouri West	$	85.2		$	78.7
Net receivable from Evergy Kansas Central	16.1			14.9
Net receivable from (payable to) Evergy	26.5			(4.3		)

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. As of March 31, 2020 and December 31, 2019, Evergy Kansas Central had income taxes receivable from Evergy of $33.6

million and $37.9 million, respectively. As of March 31, 2020 and December 31, 2019, Evergy Metro had income taxes payable to Evergy of $4.2 million and $14.1 million, respectively.

Leases

Evergy Metro leases certain transmission equipment from Evergy Kansas Central. This lease was entered into prior to the merger in an arms-length transaction and is accounted for as an operating lease. The right-of-use asset related to this lease is recorded within other long-term assets and the current and long-term lease liabilities are recorded within other current liabilities and other long-term liabilities, respectively, on the consolidated balance sheet. The assets and liabilities related to this lease between Evergy Kansas Central and Evergy Metro are eliminated at consolidated Evergy. As of March 31, 2020, Evergy Metro had a right-of-use asset of $29.3 million, a current lease liability of $0.7 million and a long-term lease liability of $28.6 million on its consolidated balance sheet related to this lease. As of December 31, 2019, Evergy Metro had a right-of-use asset of $29.5 million, a current lease liability of $0.6 million and a long-term lease liability of $28.9 million on its consolidated balance sheet related to this lease.

TAXES

3 Months Ended

Mar. 31, 2020

Income Tax Disclosure [Abstract]

TAXES

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



Evergy
Three Months Ended March 31	2020			2019
Current income taxes	(millions)
Federal	$	2.4		$	11.9
State	(0.4		)	(0.6		)
Total	2.0			11.3
Deferred income taxes
Federal	6.0			(7.3		)
State	2.8			6.3
Total	8.8			(1.0		)
Investment tax credit amortization	(0.7		)	(1.0		)
Income tax expense	$	10.1		$	9.3



Evergy Kansas Central
Three Months Ended March 31	2020			2019
Current income taxes	(millions)
Federal	$	24.2		$	10.4
State	(0.4		)	0.4
Total	23.8			10.8
Deferred income taxes
Federal	(18.2		)	(3.2		)
State	2.6			3.6
Total	(15.6		)	0.4
Investment tax credit amortization	(0.4		)	(0.7		)
Income tax expense	$	7.8		$	10.5



Evergy Metro
Three Months Ended March 31	2020			2019
Current income taxes	(millions)
Federal	$	11.6		$	7.9
State	1.2			0.8
Total	12.8			8.7
Deferred income taxes
Federal	(9.5		)	(5.2		)
State	(0.4		)	0.4
Total	(9.9		)	(4.8		)
Investment tax credit amortization	(0.3		)	(0.2		)
Income tax expense	$	2.6		$	3.7

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 March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	(1.6	)	(1.8	)
State income taxes	2.3		4.6
Flow through depreciation for plant-related differences	(3.9	)	(4.4	)
Federal tax credits	(4.5	)	(3.9	)
Non-controlling interest	(0.3	)	(0.3	)
AFUDC equity	(0.3	)	—
Amortization of federal investment tax credits	(0.5	)	(0.5	)
Valuation allowance	—		(7.0	)
Stock compensation	0.1		0.1
Officer compensation limitation	0.1		0.2
Other	(0.2	)	0.2
Effective income tax rate	12.2	%	8.2	%



Evergy Kansas Central
Three Months Ended March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	(3.1	)	(3.2	)
State income taxes	2.7		5.0
Flow through depreciation for plant-related differences	—		(0.1	)
Federal tax credits	(6.6	)	(6.1	)
Non-controlling interest	(0.6	)	(0.6	)
AFUDC equity	(0.4	)	(0.1	)
Amortization of federal investment tax credits	(0.7	)	(0.7	)
Valuation allowance	—		(2.1	)
Stock compensation	(0.1	)	(0.1	)
Other	0.1		0.3
Effective income tax rate	12.3	%	13.3	%



Evergy Metro
Three Months Ended March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	—		(0.1	)
State income taxes	2.2		4.9
Flow through depreciation for plant-related differences	(7.7	)	(7.2	)
Federal tax credits	(2.4	)	(1.5	)
AFUDC equity	(0.2	)	—
Amortization of federal investment tax credits	(0.4	)	(0.3	)
Stock compensation	(3.6	)	1.0
Officer compensation limitation	—		0.3
Other	0.4		0.3
Effective income tax rate	9.3	%	18.4	%

ORGANIZATION AND BASIS OF PRESENTATION (Policies)	3 Months Ended
ORGANIZATION AND BASIS OF PRESENTATION (Policies)	Mar. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	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 2019 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	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 variable interest entities (VIEs) of which they are the primary beneficiary. 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).
Fuel Inventory and Supplies	Fuel Inventory and Supplies The Evergy Companies record fuel inventory and supplies at average cost.
Earnings Per Share	Earnings Per Share To compute basic earnings per 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), performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

ORGANIZATION AND BASIS OF PRESENTATION (Tables)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

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.



	March 31 2020		December 31 2019
Evergy	(millions)
Fuel inventory	$	166.4	$	146.4
Supplies	332.5		335.2
Fuel inventory and supplies	$	498.9	$	481.6
Evergy Kansas Central
Fuel inventory	$	87.6	$	80.2
Supplies	183.3		186.2
Fuel inventory and supplies	$	270.9	$	266.4
Evergy Metro
Fuel inventory	$	57.9	$	46.1
Supplies	117.2		116.9
Fuel inventory and supplies	$	175.1	$	163.0

Summary of Property, Plant and Equipment

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



March 31, 2020	Evergy				Evergy Kansas Central				Evergy Metro
		(millions)
Electric plant in service		$	27,995.1			$	13,634.9			$	10,865.3
Electric plant acquisition adjustment		740.6				740.6				—
Accumulated depreciation		(10,460.3		)		(5,034.6		)		(4,340.8		)
Plant in service, net		18,275.4				9,340.9				6,524.5
Construction work in progress		831.0				452.6				281.2
Nuclear fuel, net		115.9				57.6				58.3
Plant to be retired, net^(a)		0.9				0.9				—
Property, plant and equipment, net		$	19,223.2			$	9,852.0			$	6,864.0

December 31, 2019	Evergy				Evergy Kansas Central				Evergy Metro
		(millions)
Electric plant in service		$	27,768.8			$	13,538.1			$	10,776.5
Electric plant acquisition adjustment		740.6				740.6				—
Accumulated depreciation		(10,293.7		)		(4,951.5		)		(4,272.0		)
Plant in service, net		18,215.7				9,327.2				6,504.5
Construction work in progress		839.2				472.8				269.9
Nuclear fuel, net		128.5				63.9				64.6
Plant to be retired, net^(a)		1.0				1.0				—
Property, plant and equipment, net		$	19,184.4			$	9,864.9			$	6,839.0

^(a) As of March 31, 2020, and December 31, 2019, 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 March 31	2020			2019
Evergy	(millions)
Non-service cost component of net benefit cost	$	(16.2	)	$	(13.1	)
Other	(6.5		)	(6.3		)
Other expense	$	(22.7	)	$	(19.4	)
Evergy Kansas Central
Non-service cost component of net benefit cost	$	(5.6	)	$	(4.4	)
Other	(5.9		)	(6.2		)
Other expense	$	(11.5	)	$	(10.6	)
Evergy Metro
Non-service cost component of net benefit cost	$	(6.9	)	$	(5.1	)
Other	(0.5		)	0.1
Other expense	$	(7.4	)	$	(5.0	)

Schedule of Earnings Per Share, Basic and Diluted

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



Three Months Ended March 31	2020		2019
Income	(millions, except per share amounts)
Net income	$	72.2	$	103.4
Less: Net income attributable to noncontrolling interests	2.8		3.9
Net income attributable to Evergy, Inc.	$	69.4	$	99.5
Common Shares Outstanding
Weighted average number of common shares outstanding - basic	227.1		252.8
Add: Effect of dilutive securities	0.4		0.2
Weighted average number of common shares outstanding - dilutive	227.5		253.0
Basic and Diluted EPS	$	0.31	$	0.39

Supplemental Cash Flow Information



Evergy
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	86.5	$	59.3
Interest of VIEs	0.6		1.0
Income taxes, net of refunds	0.2		(0.1		)
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6		2.2
Non-cash investing transactions:
Property, plant and equipment additions	75.7		47.1
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.9		0.5
Right-of-use assets obtained in exchange for new finance lease liabilities	3.1		2.3



Evergy Kansas Central
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	37.4	$	32.6
Interest of VIEs	0.6		1.0
Income taxes, net of refunds	0.2		—
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6		—
Non-cash investing transactions:
Property, plant and equipment additions	52.5		27.1
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	1.9		2.3



Evergy Metro
Three Months Ended March 31	2020		2019
Cash paid for (received from):	(millions)
Interest, net of amounts capitalized	$	18.7	$	19.6
Right-of-use assets obtained in exchange for new operating lease liabilities	—		2.2
Non-cash investing transactions:
Property, plant and equipment additions	17.8		15.9
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	1.2		—

REVENUE (Tables)

3 Months Ended

Mar. 31, 2020

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.



Three Months Ended March 31, 2020	Evergy			Evergy Kansas Central			Evergy Metro
Revenues		(millions)
Residential		$	402.5		$	167.8		$	147.4
Commercial		384.7			151.1			172.1
Industrial		140.6			92.1			30.1
Other retail		10.6			4.7			3.5
Total electric retail		$	938.4		$	415.7		$	353.1
Wholesale		63.5			54.8			6.8
Transmission		75.6			68.2			3.1
Industrial steam and other		8.4			3.5			0.4
Total revenue from contracts with customers		$	1,085.9		$	542.2		$	363.4
Other		30.8			17.9			12.1
Operating revenues		$	1,116.7		$	560.1		$	375.5



Three Months Ended March 31, 2019	Evergy			Evergy Kansas Central			Evergy Metro
Revenues		(millions)
Residential		$	451.7		$	192.3		$	164.2
Commercial		413.5			164.3			183.8
Industrial		147.0			98.4			29.7
Other retail		9.8			5.1			2.6
Total electric retail		$	1,022.0		$	460.1		$	380.3
Wholesale		83.1			61.3			18.1
Transmission		76.7			69.2			3.1
Industrial steam and other		3.3			1.7			1.4
Total revenue from contracts with customers		$	1,185.1		$	592.3		$	402.9
Other		31.8			4.5			22.5
Operating revenues		$	1,216.9		$	596.8		$	425.4

RECEIVABLES (Tables)

3 Months Ended

Mar. 31, 2020

Receivables [Abstract]

Schedule of Receivables

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



	March 31 2020		December 31 2019
	(millions)
Evergy	$	45.8	$	42.0
Evergy Kansas Central	43.9		37.7
Evergy Metro	1.3		1.2

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



	March 31 2020			December 31 2019
Evergy	(millions)
Customer accounts receivable - billed	$	3.9		$	7.2
Customer accounts receivable - unbilled	63.6			104.0
Other receivables	133.2			127.8
Allowance for credit losses	(11.5		)	(10.5		)
Total	$	189.2		$	228.5
Evergy Kansas Central
Customer accounts receivable - billed	$	—		$	—
Customer accounts receivable - unbilled	26.1			49.7
Other receivables	120.4			94.5
Allowance for credit losses	(4.1		)	(3.8		)
Total	$	142.4		$	140.4
Evergy Metro
Customer accounts receivable - billed	$	3.3		$	3.1
Customer accounts receivable - unbilled	16.9			26.5
Other receivables	18.4			23.1
Allowance for credit losses	(5.2		)	(4.6		)
Total	$	33.4		$	48.1

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



	March 31 2020		December 31 2019
	(millions)
Evergy	$	322.0	$	339.0
Evergy Kansas Central	159.0		171.0
Evergy Metro	113.0		118.0

Summary of Bad Debt Expense

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



Three Months Ended March 31	2020			2019
Evergy	(millions)
Beginning balance	$	10.5		$	9.2
Credit loss expense	2.7			3.8
Write-offs	(5.0		)	(6.5		)
Recoveries of prior write-offs	3.3			3.3
Ending balance	$	11.5		$	9.8
Evergy Kansas Central
Beginning balance	$	3.8		$	3.9
Credit loss expense	0.8			(0.5		)
Write-offs	(1.2		)	(0.2		)
Recoveries of prior write-offs	0.7			1.0
Ending balance	$	4.1		$	4.2
Evergy Metro
Beginning balance	$	4.6		$	3.8
Credit loss expense	1.4			2.8
Write-offs	(2.6		)	(4.2		)
Recoveries of prior write-offs	1.8			1.6
Ending balance	$	5.2		$	4.0

PENSION PLANS AND POST-RETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31, 2020	Evergy			Evergy Kansas Central			Evergy Metro			Evergy			Evergy Kansas Central			Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	19.6		$	6.8		$	12.8		$	0.7		$	0.3		$	0.4
Interest cost	24.4			11.8			12.6			2.3			1.2			1.1
Expected return on plan assets	(26.7		)	(13.3		)	(14.1		)	(2.3		)	(1.7		)	(0.7		)
Prior service cost	0.4			0.4			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	11.4			8.4			11.3			0.1			—			(0.1		)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	29.1			14.1			22.8			0.9			(0.1		)	0.7
Regulatory adjustment	9.9			0.4			1.4			(0.9		)	(0.7		)	—
Intercompany allocations	—			—			(6.2		)	—			—			0.2
Net periodic benefit costs (income)	$	39.0		$	14.5		$	18.0		$	—		$	(0.8	)	$	0.9



	Pension Benefits									Post-Retirement Benefits
Three Months Ended March 31, 2019	Evergy			Evergy Kansas Central			Evergy Metro			Evergy			Evergy Kansas Central			Evergy Metro
Components of net periodic benefit costs	(millions)
Service cost	$	19.1		$	7.3		$	11.8		$	0.6		$	0.3		$	0.3
Interest cost	27.5			13.4			14.1			2.6			1.4			1.2
Expected return on plan assets	(27.1		)	(13.7		)	(12.3		)	(2.4		)	(1.7		)	(0.7		)
Prior service cost	0.5			0.4			0.2			0.1			0.1			—
Recognized net actuarial (gain)/loss	6.9			6.4			12.2			(0.3		)	(0.1		)	(0.4		)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	26.9			13.8			26.0			0.6			—			0.4
Regulatory adjustment	(0.1		)	0.5			(0.6		)	(0.7		)	(0.8		)	0.1
Intercompany allocations	—			—			(6.9		)	—			—			(0.1		)
Net periodic benefit costs (income)	$	26.8		$	14.3		$	18.5		$	(0.1	)	$	(0.8	)	$	0.4

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

3 Months Ended

Mar. 31, 2020

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 March 31, 2020 and December 31, 2019.



			Amounts Drawn
	Credit Facility		Commercial Paper		Letters of Credit		Cash Borrowings		Available Borrowings		Weighted Average Interest Rate on Short-Term Borrowings
March 31, 2020	(millions)
Evergy, Inc.	$	450.0	n/a		$	0.7	$	55.0	$	394.3	1.98%
Evergy Kansas Central	1,000.0		—		24.5		370.0		605.5		2.09%
Evergy Metro	600.0		—		—		460.0		140.0		1.96%
Evergy Missouri West	450.0		—		2.1		170.0		277.9		2.22%
Evergy	$	2,500.0	$	—	$	27.3	$	1,055.0	$	1,417.7

December 31, 2019
Evergy, Inc.	$	450.0	n/a		$	0.7	$	20.0	$	429.3	2.99%
Evergy Kansas Central	1,000.0		249.2		14.2		—		736.6		2.07%
Evergy Metro	600.0		199.3		—		—		400.7		2.02%
Evergy Missouri West	450.0		93.4		2.1		—		354.5		2.02%
Evergy	$	2,500.0	$	541.9	$	17.0	$	20.0	$	1,921.1

FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2020

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 and long-term debt of variable interest entities is summarized in the following table.



	March 31, 2020				December 31, 2019
	Book Value		Fair Value		Book Value		Fair Value
Long-term debt^(a)	(millions)
Evergy^(b)	$	8,994.6	$	9,438.8	$	8,997.8	$	9,750.2
Evergy Kansas Central	3,686.7		4,188.7		3,686.1		4,078.8
Evergy Metro	2,525.4		2,613.8		2,525.0		2,932.2
Long-term debt of variable interest entities^(a)
Evergy	$	18.8	$	18.9	$	51.1	$	51.5
Evergy Kansas Central	18.8		18.9		51.1		51.5

^(a)Includes current maturities.

Schedule of Fair Value of Assets and Liabilities

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



Description	March 31, 2020			Level 1		Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust^(a)
Domestic equity funds		$	70.7	$	63.5		$	—		$	—		$	7.2
International equity funds		41.9		41.9			—			—			—
Core bond fund		37.9		37.9			—			—			—
High-yield bond fund		18.8		18.8			—			—			—
Emerging markets bond fund		16.3		16.3			—			—			—
Combination debt/equity/other fund		13.9		13.9			—			—			—
Alternative investments fund		25.3		—			—			—			25.3
Real estate securities fund		12.8		—			—			—			12.8
Cash equivalents		2.6		2.6			—			—			—
Total nuclear decommissioning trust		240.2		194.9			—			—			45.3
Rabbi trust
Core bond fund		23.4		—			—			—			23.4
Combination debt/equity/other fund		5.9		—			—			—			5.9
Cash equivalents		0.1		0.1			—			—			—
Total rabbi trust		29.4		0.1			—			—			29.3
Total		$	269.6	$	195.0		$	—		$	—		$	74.6
Evergy Metro
Assets
Nuclear decommissioning trust^(a)
Equity securities		$	161.2	$	161.2		$	—		$	—		$	—
Debt securities
U.S. Treasury		53.2		53.2			—			—			—
U.S. Agency		0.5		—			0.5			—			—
State and local obligations		2.1		—			2.1			—			—
Corporate bonds		35.7		—			35.7			—			—
Foreign governments		0.1		—			0.1			—			—
Cash equivalents		3.7		3.7			—			—			—
Other		0.7		—			0.7			—			—
Total nuclear decommissioning trust		257.2		218.1			39.1			—			—
Self-insured health plan trust^(b)
Equity securities		0.4		0.4			—			—			—
Debt securities		6.5		1.4			5.1			—			—
Cash and cash equivalents		5.0		5.0			—			—			—
Total self-insured health plan trust		11.9		6.8			5.1			—			—
Total		$	269.1	$	224.9		$	44.2		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.2	$	—		$	—		$	—		$	13.2
Cash and cash equivalents		0.5		0.5			—			—			—
Total rabbi trusts		$	13.7	$	0.5		$	—		$	—		$	13.2
Evergy
Assets
Nuclear decommissioning trust^(a)		$	497.4	$	413.0		$	39.1		$	—		$	45.3
Rabbi trusts		43.1		0.6			—			—			42.5
Self-insured health plan trust^(b)		11.9		6.8			5.1			—			—
Total		$	552.4	$	420.4		$	44.2		$	—		$	87.8



Description	December 31, 2019			Level 1			Level 2			Level 3			NAV
Evergy Kansas Central		(millions)
Assets
Nuclear decommissioning trust^(a)
Domestic equity funds		$	86.1		$	78.6		$	—		$	—		$	7.5
International equity funds		52.0			52.0			—			—			—
Core bond fund		39.3			39.3			—			—			—
High-yield bond fund		22.3			22.3			—			—			—
Emerging markets bond fund		19.4			19.4			—			—			—
Combination debt/equity/other fund		16.4			16.4			—			—			—
Alternative investments fund		23.9			—			—			—			23.9
Real estate securities fund		12.6			—			—			—			12.6
Cash equivalents		0.5			0.5			—			—			—
Total nuclear decommissioning trust		272.5			228.5			—			—			44.0
Rabbi trust
Core bond fund		25.3			—			—			—			25.3
Combination debt/equity/other fund		6.3			—			—			—			6.3
Cash equivalents		0.1			0.1			—			—			—
Total rabbi trust		31.7			0.1			—			—			31.6
Total		$	304.2		$	228.6		$	—		$	—		$	75.6
Evergy Metro
Assets
Nuclear decommissioning trust^(a)
Equity securities		$	211.1		$	211.1		$	—		$	—		$	—
Debt securities
U.S. Treasury		50.3			50.3			—			—			—
U.S. Agency		0.4			—			0.4			—			—
State and local obligations		2.2			—			2.2			—			—
Corporate bonds		33.2			—			33.2			—			—
Foreign governments		0.1			—			0.1			—			—
Cash equivalents		3.1			3.1			—			—			—
Other		0.3			—			0.3			—			—
Total nuclear decommissioning trust		300.7			264.5			36.2			—			—
Self-insured health plan trust^(b)
Equity securities		0.5			0.5			—			—			—
Debt securities		6.7			1.4			5.3			—			—
Cash and cash equivalents		2.7			2.7			—			—			—
Total self-insured health plan trust		9.9			4.6			5.3			—			—
Total		$	310.6		$	269.1		$	41.5		$	—		$	—
Other Evergy
Assets
Rabbi trusts
Fixed income fund		$	13.3		$	—		$	—		$	—		$	13.3
Cash and cash equivalents		0.5			0.5			—			—			—
Total rabbi trusts		$	13.8		$	0.5		$	—		$	—		$	13.3
Evergy
Assets
Nuclear decommissioning trust^(a)		$	573.2		$	493.0		$	36.2		$	—		$	44.0
Rabbi trust		45.5			0.6			—			—			44.9
Self-insured health plan trust^(b)		9.9			4.6			5.3			—			—
Total		$	628.6		$	498.2		$	41.5		$	—		$	88.9


^(a)	Fair value is based on quoted market prices of the investments held by the trust and/or valuation models.

^(b)

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.

Schedule of Fair Value Investments, Entities that Calculate NAV

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



	March 31, 2020				December 31, 2019				March 31, 2020
	Fair		Unfunded		Fair		Unfunded		Redemption	Length of
	Value		Commitments		Value		Commitments		Frequency	Settlement
Evergy Kansas Central	(millions)
Nuclear decommissioning trust:
Domestic equity funds	$	7.2	$	3.2	$	7.5	$	3.3	(a)	(a)
Alternative investments fund^(b)	25.3		—		23.9		—		Quarterly	65 days
Real estate securities fund^(b)	12.8		—		12.6		—		Quarterly	65 days
Total	$	45.3	$	3.2	$	44.0	$	3.3
Rabbi trust:
Core bond fund	$	23.4	$	—	$	25.3	$	—	(c)	(c)
Combination debt/equity/other fund	5.9		—		6.3		—		(c)	(c)
Total	$	29.3	$	—	$	31.6	$	—
Other Evergy
Rabbi trusts:
Fixed income fund	$	13.2	$	—	$	13.3	$	—	(c)	(c)
Total Evergy investments at NAV	$	87.8	$	3.2	$	88.9	$	3.3

^(a)


^(b)	There is a holdback on final redemptions.

^(c)

This investment can be redeemed immediately and is not subject to any restrictions on 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 March 31	2020			2019
Evergy	(millions)
Nuclear decommissioning trust - equity securities	$	(89.3	)	$	37.9
Nuclear decommissioning trust - debt securities	3.0			2.1
Rabbi trusts - equity securities	(2.0		)	0.5
Total	$	(88.3	)	$	40.5
Evergy Kansas Central
Nuclear decommissioning trust - equity securities	$	(38.1	)	$	17.2
Rabbi trusts - equity securities	(2.1		)	1.3
Total	$	(40.2	)	$	18.5
Evergy Metro
Nuclear decommissioning trust - equity securities	$	(51.2	)	$	20.7
Nuclear decommissioning trust - debt securities	3.0			2.1
Total	$	(48.2	)	$	22.8

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Tables)

3 Months Ended

Mar. 31, 2020

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



	March 31			December 31
	2020			2019
Evergy Kansas Central	(millions)
Net receivable from Evergy Missouri West	$	1.3		$	3.1
Net payable to Evergy Metro	(16.1		)	(14.9		)
Net receivable from (payable to) Evergy	(0.7		)	6.9

Evergy Metro
Net receivable from Evergy Missouri West	$	85.2		$	78.7
Net receivable from Evergy Kansas Central	16.1			14.9
Net receivable from (payable to) Evergy	26.5			(4.3		)

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



Three Months Ended March 31	2020		2019
	(millions)
Evergy Metro billings to Evergy Missouri West	$	39.3	$	42.0
Evergy Kansas Central billings to Evergy Missouri West	4.3		6.3
Evergy Metro billings to Evergy Kansas Central	48.1		31.5
Evergy Kansas Central billings to Evergy Metro	15.0		7.4

TAXES (Tables)

3 Months Ended

Mar. 31, 2020

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 March 31	2020			2019
Current income taxes	(millions)
Federal	$	2.4		$	11.9
State	(0.4		)	(0.6		)
Total	2.0			11.3
Deferred income taxes
Federal	6.0			(7.3		)
State	2.8			6.3
Total	8.8			(1.0		)
Investment tax credit amortization	(0.7		)	(1.0		)
Income tax expense	$	10.1		$	9.3



Evergy Kansas Central
Three Months Ended March 31	2020			2019
Current income taxes	(millions)
Federal	$	24.2		$	10.4
State	(0.4		)	0.4
Total	23.8			10.8
Deferred income taxes
Federal	(18.2		)	(3.2		)
State	2.6			3.6
Total	(15.6		)	0.4
Investment tax credit amortization	(0.4		)	(0.7		)
Income tax expense	$	7.8		$	10.5



Evergy Metro
Three Months Ended March 31	2020			2019
Current income taxes	(millions)
Federal	$	11.6		$	7.9
State	1.2			0.8
Total	12.8			8.7
Deferred income taxes
Federal	(9.5		)	(5.2		)
State	(0.4		)	0.4
Total	(9.9		)	(4.8		)
Investment tax credit amortization	(0.3		)	(0.2		)
Income tax expense	$	2.6		$	3.7

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 March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	(1.6	)	(1.8	)
State income taxes	2.3		4.6
Flow through depreciation for plant-related differences	(3.9	)	(4.4	)
Federal tax credits	(4.5	)	(3.9	)
Non-controlling interest	(0.3	)	(0.3	)
AFUDC equity	(0.3	)	—
Amortization of federal investment tax credits	(0.5	)	(0.5	)
Valuation allowance	—		(7.0	)
Stock compensation	0.1		0.1
Officer compensation limitation	0.1		0.2
Other	(0.2	)	0.2
Effective income tax rate	12.2	%	8.2	%



Evergy Kansas Central
Three Months Ended March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	(3.1	)	(3.2	)
State income taxes	2.7		5.0
Flow through depreciation for plant-related differences	—		(0.1	)
Federal tax credits	(6.6	)	(6.1	)
Non-controlling interest	(0.6	)	(0.6	)
AFUDC equity	(0.4	)	(0.1	)
Amortization of federal investment tax credits	(0.7	)	(0.7	)
Valuation allowance	—		(2.1	)
Stock compensation	(0.1	)	(0.1	)
Other	0.1		0.3
Effective income tax rate	12.3	%	13.3	%



Evergy Metro
Three Months Ended March 31	2020		2019
Federal statutory income tax rate	21.0	%	21.0	%
Effect of:
COLI policies	—		(0.1	)
State income taxes	2.2		4.9
Flow through depreciation for plant-related differences	(7.7	)	(7.2	)
Federal tax credits	(2.4	)	(1.5	)
AFUDC equity	(0.2	)	—
Amortization of federal investment tax credits	(0.4	)	(0.3	)
Stock compensation	(3.6	)	1.0
Officer compensation limitation	—		0.3
Other	0.4		0.3
Effective income tax rate	9.3	%	18.4	%

ORGANIZATION AND BASIS OF PRESENTATION - Organization (Details) customer in Millions	3 Months Ended
	Mar. 31, 2020 subsidiary kilovolt_line customer segment mi MW
Summary Of Accounting Policies [Line Items]
Owned generating capacity and renewable purchased power \| MW	14,700
Number of customers served \| customer	1.6
Number of segments \| segment	1
Prairie Wind Transmission, LLC
Summary Of Accounting Policies [Line Items]
Transmission line length \| mi	108
Transmission line electrical potential \| kilovolt_line	345
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%

ORGANIZATION AND BASIS OF PRESENTATION - Fuel Inventory and Supplies (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Inventory [Line Items]
Fuel inventory	$ 166.4	$ 146.4
Supplies	332.5	335.2
Fuel inventory and supplies	498.9	481.6
Evergy Kansas Central
Inventory [Line Items]
Fuel inventory	87.6	80.2
Supplies	183.3	186.2
Fuel inventory and supplies	270.9	266.4
Evergy Metro
Inventory [Line Items]
Fuel inventory	57.9	46.1
Supplies	117.2	116.9
Fuel inventory and supplies	$ 175.1	$ 163.0

ORGANIZATION AND BASIS OF PRESENTATION - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 19,223.2	$ 19,184.4
Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	27,995.1	27,768.8
Property, plant and equipment, adjustment	740.6	740.6
Accumulated depreciation	(10,460.3)	(10,293.7)
Property, plant and equipment, net	18,275.4	18,215.7
Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	831.0	839.2
Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	115.9	128.5
Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.9	1.0
Evergy Kansas Central
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	9,852.0	9,864.9
Evergy Kansas Central \| Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,634.9	13,538.1
Property, plant and equipment, adjustment	740.6	740.6
Accumulated depreciation	(5,034.6)	(4,951.5)
Property, plant and equipment, net	9,340.9	9,327.2
Evergy Kansas Central \| Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	452.6	472.8
Evergy Kansas Central \| Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	57.6	63.9
Evergy Kansas Central \| Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.9	1.0
Evergy Metro
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	6,864.0	6,839.0
Evergy Metro \| Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,865.3	10,776.5
Property, plant and equipment, adjustment	0.0	0.0
Accumulated depreciation	(4,340.8)	(4,272.0)
Property, plant and equipment, net	6,524.5	6,504.5
Evergy Metro \| Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	281.2	269.9
Evergy Metro \| Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	58.3	64.6
Evergy Metro \| Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 0.0	$ 0.0

ORGANIZATION AND BASIS OF PRESENTATION - Other Income And Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Entity Information [Line Items]
Non-service cost component of net benefit cost	$ (16.2)	$ (13.1)
Other	(6.5)	(6.3)
Other expense	(22.7)	(19.4)
Evergy Kansas Central
Entity Information [Line Items]
Non-service cost component of net benefit cost	(5.6)	(4.4)
Other	(5.9)	(6.2)
Other expense	(11.5)	(10.6)
Evergy Metro
Entity Information [Line Items]
Non-service cost component of net benefit cost	(6.9)	(5.1)
Other	(0.5)	0.1
Other expense	$ (7.4)	$ (5.0)

ORGANIZATION AND BASIS OF PRESENTATION - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income
Net income	$ 72.2	$ 103.4
Less: Net income attributable to noncontrolling interests	2.8	3.9
Net income attributable to Evergy, Inc.	$ 69.4	$ 99.5
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic (in shares)	227.1	252.8
Add: effect of dilutive securities (in shares)	0.4	0.2
Diluted average number of common shares outstanding (in shares)	227.5	253.0
Basic and diluted earnings per common share (in dollars per share)	$ 0.31	$ 0.39

- Definition

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

+ References + Details

- Definition

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

+ References

+ Details

ORGANIZATION AND BASIS OF PRESENTATION - Antidilutive Securities (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		0
RSU With Performance Measures
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	175,991
Restricted Stock Units (RSUs), Service Requirements
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount	58,714

ORGANIZATION AND BASIS OF PRESENTATION - Dividends Declared (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	May 07, 2020	Mar. 31, 2020	Mar. 31, 2019
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)		$ 0.505	$ 0.475
Subsequent Event \| Evergy Kansas Central
Dividends Payable [Line Items]
Dividends payable	$ 60.0
Subsequent Event \| Evergy Metro
Dividends Payable [Line Items]
Dividends payable	$ 20.0
Common Stock \| Subsequent Event
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)	$ 0.505

ORGANIZATION AND BASIS OF PRESENTATION - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for (received from):
Interest, net of amount capitalized	$ 86.5	$ 59.3
Income taxes, net of refunds	0.2	(0.1)
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6	2.2
Non-cash investing transactions:
Property, plant and equipment additions	75.7	47.1
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.9	0.5
Right-of-use assets obtained in exchange for new finance lease liabilities	3.1	2.3
Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.6	1.0
Evergy Kansas Central
Cash paid for (received from):
Interest, net of amount capitalized	37.4	32.6
Income taxes, net of refunds	0.2	0.0
Right-of-use assets obtained in exchange for new operating lease liabilities	2.6	0.0
Non-cash investing transactions:
Property, plant and equipment additions	52.5	27.1
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	1.9	2.3
Evergy Kansas Central \| Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.6	1.0
Evergy Metro
Cash paid for (received from):
Interest, net of amount capitalized	18.7	19.6
Right-of-use assets obtained in exchange for new operating lease liabilities	0.0	2.2
Non-cash investing transactions:
Property, plant and equipment additions	17.8	15.9
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 1.2	$ 0.0

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended
REVENUE (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,085.9	$ 1,185.1
Other	30.8	31.8
Operating revenues	1,116.7	1,216.9
Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	542.2	592.3
Other	17.9	4.5
Operating revenues	560.1	596.8
Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	363.4	402.9
Other	12.1	22.5
Operating revenues	375.5	425.4
Residential
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	402.5	451.7
Residential \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	167.8	192.3
Residential \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	147.4	164.2
Commercial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	384.7	413.5
Commercial \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	151.1	164.3
Commercial \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	172.1	183.8
Industrial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	140.6	147.0
Industrial \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	92.1	98.4
Industrial \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	30.1	29.7
Other retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	10.6	9.8
Other retail \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4.7	5.1
Other retail \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.5	2.6
Total electric retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	938.4	1,022.0
Total electric retail \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	415.7	460.1
Total electric retail \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	353.1	380.3
Wholesale
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	63.5	83.1
Wholesale \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	54.8	61.3
Wholesale \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	6.8	18.1
Transmission
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	75.6	76.7
Transmission \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	68.2	69.2
Transmission \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.1	3.1
Industrial steam and other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	8.4	3.3
Industrial steam and other \| Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.5	1.7
Industrial steam and other \| Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 0.4	$ 1.4

RECEIVABLES (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 133.2	$ 127.8
Allowance for credit losses	(11.5)	(10.5)
Total	189.2	228.5
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	120.4	94.5
Allowance for credit losses	(4.1)	(3.8)
Total	142.4	140.4
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	18.4	23.1
Allowance for credit losses	(5.2)	(4.6)
Total	33.4	48.1
Customer accounts receivable \| Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	3.9	7.2
Customer accounts receivable \| Billed \| Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	0.0	0.0
Customer accounts receivable \| Billed \| Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	3.3	3.1
Customer accounts receivable \| Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	63.6	104.0
Customer accounts receivable \| Unbilled \| Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	26.1	49.7
Customer accounts receivable \| Unbilled \| Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	$ 16.9	$ 26.5

RECEIVABLES - Narrative (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Entity Information [Line Items]
Other receivables, contracts with customers	$ 45,800,000	$ 42,000,000.0
Accounts receivable pledged as collateral	322,000,000.0	339,000,000.0
Evergy Kansas Central
Entity Information [Line Items]
Other receivables, contracts with customers	43,900,000	37,700,000
Accounts receivable pledged as collateral	159,000,000.0	171,000,000.0
Evergy Metro
Entity Information [Line Items]
Other receivables, contracts with customers	1,300,000	1,200,000
Accounts receivable pledged as collateral	113,000,000.0	$ 118,000,000.0
Maximum amount of outstanding principal under receivables agreement	130,000,000.0
Borrowings From Mid October Through Mid June \| Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	185,000,000.0
Borrowing From Mid June Through Expiration \| Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	200,000,000.0
Borrowing From Mid June Through Expiration \| Evergy Missouri West Inc
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	65,000,000.0
Borrowings From Mid-November Through Mid-June \| Evergy Missouri West Inc
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	$ 50,000,000.0

RECEIVABLES - Allowance for Credit Loses (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	$ 10.5	$ 9.2
Credit loss expense	2.7	3.8
Write-offs	(5.0)	(6.5)
Recoveries of prior write-offs	3.3	3.3
Ending balance	11.5	9.8
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	3.8	3.9
Credit loss expense	0.8	(0.5)
Write-offs	(1.2)	(0.2)
Recoveries of prior write-offs	0.7	1.0
Ending balance	4.1	4.2
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance	4.6	3.8
Credit loss expense	1.4	2.8
Write-offs	(2.6)	(4.2)
Recoveries of prior write-offs	1.8	1.6
Ending balance	$ 5.2	$ 4.0

RECEIVABLES - Other Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 45.8	$ 42.0
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	43.9	37.7
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 1.3	$ 1.2

RECEIVABLES - Pledged as Collateral (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 322.0	$ 339.0
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	159.0	171.0
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 113.0	$ 118.0

RATE MATTERS AND REGULATION - Narrative (Details) $ in Millions		1 Months Ended	3 Months Ended
	May 07, 2020 USD ($)	Apr. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)
2018 Rate Case Proceedings \| Evergy Kansas Central \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Refund percent on earnings over approved return on equity			0.50
Approved return on equity, percentage			9.30%
2018 Rate Case Proceedings \| Evergy Metro \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Refund percent on earnings over approved return on equity			0.5
Approved return on equity, percentage			9.30%
FERC 2020 TFR Proceeding \| Evergy Kansas Central \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of decrease over prior year			$ 6.8
FERC 2020 TFR Proceeding \| Evergy Metro \| Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of decrease over prior year			(1.7)
2018 MPSC OPC MECG Petition
Regulatory Proceedings [Line Items]
Annual estimated loss contingency portion not accrued (up to)			12.0
2018 MPSC OPC MECG Petition \| Revenues Probable Of Refund
Regulatory Proceedings [Line Items]
Regulatory liabilities			$ 12.9
Subsequent Event \| Transmission delivery charge \| Evergy Kansas Central \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Annual revenue decrease approved		$ 3.5
Subsequent Event \| Transmission delivery charge \| Evergy Metro \| Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Annual revenue decrease approved	$ 2.7

PENSION PLANS AND POST-RETIREMENT BENEFITS - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	$ 21.4
Contributions to plans remainder of year	106.7
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions to plans remainder of year	3.8
Evergy Kansas Central \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	18.0
Contributions to plans remainder of year	27.5
Evergy Kansas Central \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions to plans remainder of year	0.8
Evergy Metro \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	3.4
Contributions to plans remainder of year	79.2
Evergy Metro \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions to plans remainder of year	$ 3.0
Wolf Creek
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	94.00%
Wolf Creek \| Evergy Kansas South Inc
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	47.00%
Wolf Creek \| Evergy Metro
Defined Benefit Plan Disclosure [Line Items]
Jointly owned utility plant, proportionate ownership share	47.00%

PENSION PLANS AND POST-RETIREMENT BENEFITS - Schedule of Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 19.6	$ 19.1
Interest cost	24.4	27.5
Expected return on plan assets	(26.7)	(27.1)
Prior service cost	0.4	0.5
Recognized net actuarial (gain) loss	11.4	6.9
Net periodic benefit costs before regulatory adjustment and intercompany allocations	29.1	26.9
Regulatory adjustment	9.9	(0.1)
Intercompany allocations	0.0	0.0
Net periodic benefit costs	39.0	26.8
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.7	0.6
Interest cost	2.3	2.6
Expected return on plan assets	(2.3)	(2.4)
Prior service cost	0.1	0.1
Recognized net actuarial (gain) loss	0.1	(0.3)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.9	0.6
Regulatory adjustment	(0.9)	(0.7)
Intercompany allocations	0.0	0.0
Net periodic benefit costs	0.0	(0.1)
Evergy Kansas Central \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	6.8	7.3
Interest cost	11.8	13.4
Expected return on plan assets	(13.3)	(13.7)
Prior service cost	0.4	0.4
Recognized net actuarial (gain) loss	8.4	6.4
Net periodic benefit costs before regulatory adjustment and intercompany allocations	14.1	13.8
Regulatory adjustment	0.4	0.5
Intercompany allocations	0.0	0.0
Net periodic benefit costs	14.5	14.3
Evergy Kansas Central \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.3	0.3
Interest cost	1.2	1.4
Expected return on plan assets	(1.7)	(1.7)
Prior service cost	0.1	0.1
Recognized net actuarial (gain) loss	0.0	(0.1)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(0.1)	0.0
Regulatory adjustment	(0.7)	(0.8)
Intercompany allocations	0.0	0.0
Net periodic benefit costs	(0.8)	(0.8)
Evergy Metro \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	12.8	11.8
Interest cost	12.6	14.1
Expected return on plan assets	(14.1)	(12.3)
Prior service cost	0.2	0.2
Recognized net actuarial (gain) loss	11.3	12.2
Net periodic benefit costs before regulatory adjustment and intercompany allocations	22.8	26.0
Regulatory adjustment	1.4	(0.6)
Intercompany allocations	(6.2)	(6.9)
Net periodic benefit costs	18.0	18.5
Evergy Metro \| Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.4	0.3
Interest cost	1.1	1.2
Expected return on plan assets	(0.7)	(0.7)
Prior service cost	0.0	0.0
Recognized net actuarial (gain) loss	(0.1)	(0.4)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.7	0.4
Regulatory adjustment	0.0	0.1
Intercompany allocations	0.2	(0.1)
Net periodic benefit costs	$ 0.9	$ 0.4

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Narrative (Details) - Cash Borrowings	Mar. 31, 2020 USD ($)
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity	$ 2,500,000,000
Debt instrument, debt default, threshold	$ 100,000,000.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Kansas Central
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100,000,000.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Metro
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100,000,000.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%
Evergy Missouri West Inc
Short-term Debt [Line Items]
Debt instrument, debt default, threshold	$ 100,000,000.0
Debt Instrument, debt to capitalization ratio (no more than)	65.00%

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Schedule of Short Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Credit Facility	$ 2,500.0	$ 2,500.0
Available Borrowings	1,417.7	1,921.1
Evergy, Inc.
Short-term Debt [Line Items]
Credit Facility	450.0	450.0
Available Borrowings	$ 394.3	$ 429.3
Weighted Average Interest Rate on Short-Term Borrowings	1.98%	2.99%
Evergy Kansas Central
Short-term Debt [Line Items]
Credit Facility	$ 1,000.0	$ 1,000.0
Available Borrowings	$ 605.5	$ 736.6
Weighted Average Interest Rate on Short-Term Borrowings	2.09%	2.07%
Evergy Metro Inc
Short-term Debt [Line Items]
Credit Facility	$ 600.0	$ 600.0
Available Borrowings	$ 140.0	$ 400.7
Weighted Average Interest Rate on Short-Term Borrowings	1.96%	2.02%
Evergy Missouri West Inc
Short-term Debt [Line Items]
Credit Facility	$ 450.0	$ 450.0
Available Borrowings	$ 277.9	$ 354.5
Weighted Average Interest Rate on Short-Term Borrowings	2.22%	2.02%
Commercial Paper
Short-term Debt [Line Items]
Long-term line of credit	$ 0.0	$ 541.9
Commercial Paper \| Evergy Kansas Central
Short-term Debt [Line Items]
Long-term line of credit	0.0	249.2
Commercial Paper \| Evergy Metro Inc
Short-term Debt [Line Items]
Long-term line of credit	0.0	199.3
Commercial Paper \| Evergy Missouri West Inc
Short-term Debt [Line Items]
Long-term line of credit	0.0	93.4
Letters of Credit
Short-term Debt [Line Items]
Letters of Credit	27.3	17.0
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	24.5	14.2
Letters of Credit \| Evergy Metro Inc
Short-term Debt [Line Items]
Letters of Credit	0.0	0.0
Letters of Credit \| Evergy Missouri West Inc
Short-term Debt [Line Items]
Letters of Credit	2.1	2.1
Cash Borrowings
Short-term Debt [Line Items]
Long-term line of credit	1,055.0	20.0
Cash Borrowings \| Evergy, Inc.
Short-term Debt [Line Items]
Long-term line of credit	55.0	20.0
Cash Borrowings \| Evergy Kansas Central
Short-term Debt [Line Items]
Long-term line of credit	370.0	0.0
Cash Borrowings \| Evergy Metro Inc
Short-term Debt [Line Items]
Long-term line of credit	460.0	0.0
Cash Borrowings \| Evergy Missouri West Inc
Short-term Debt [Line Items]
Long-term line of credit	$ 170.0	$ 0.0

LONG-TERM DEBT - Narrative (Details) - Subsequent Event - Evergy Kansas Central - Secured Debt $ in Millions	Apr. 30, 2020 USD ($)
Mortgage Bonds Due 2050 EKC
Debt Instrument [Line Items]
Long-term debt gross	$ 500.0
Interest rate	3.45%
Mortgage Bonds Due 2020 EKC
Debt Instrument [Line Items]
Long-term debt gross	$ 250.0
Interest rate	5.10%

FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		10 Months Ended
FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment for settlement of interest rate swap accounted for as a cash flow hedge	$ 69,800,000
Notional amount	500,000,000.0			$ 500,000,000.0
Other comprehensive loss	69,800,000	$ 0	$ 13,800,000
Interest expense		(96,200,000)	(91,100,000)
Income tax expense (benefit)		10,100,000	$ 9,300,000
Accumulated other comprehensive loss over the next twelve months		5,200,000
Senior Notes Due 2029 Evergy \| Senior Notes
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt issued	$ 800,000,000.0			$ 800,000,000.0
Interest rate	2.90%			2.90%
Debt instrument, term				10 years
Reclassification out of Accumulated Other Comprehensive Income \| Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Interest expense		1,700,000
Income tax expense (benefit)		$ 400,000

FAIR VALUE MEASUREMENTS - Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	$ 8,994.6	$ 8,997.8
Fair Value \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	9,438.8	9,750.2
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	3,686.7	3,686.1
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	4,188.7	4,078.8
Evergy Metro \| Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	2,525.4	2,525.0
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	2,613.8	2,932.2
Long-Term debt fair value adjustment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt gross	121.7	125.5
Variable Interest Entities \| Book Value \| Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	18.8	51.1
Variable Interest Entities \| Fair Value \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	18.9	51.5
Variable Interest Entities \| 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	18.8	51.1
Variable Interest Entities \| 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	$ 18.9	$ 51.5

FAIR VALUE MEASUREMENTS - Recurring (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Total nuclear decommissioning trust	$ 497.4	$ 573.2
Total rabbi trust	43.1	45.5
Total self-insured health plan trust	11.9	9.9
Total Assets	552.4	628.6
Level 1
Assets
Total nuclear decommissioning trust	413.0	493.0
Total rabbi trust	0.6	0.6
Total self-insured health plan trust	6.8	4.6
Total Assets	420.4	498.2
Level 2
Assets
Total nuclear decommissioning trust	39.1	36.2
Total rabbi trust	0.0	0.0
Total self-insured health plan trust	5.1	5.3
Total Assets	44.2	41.5
Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total Assets	0.0	0.0
NAV
Assets
Total nuclear decommissioning trust	45.3	44.0
Total rabbi trust	42.5	44.9
Total self-insured health plan trust	0.0	0.0
Total Assets	87.8	88.9
Evergy Kansas Central
Assets
Total nuclear decommissioning trust	240.2	272.5
Total rabbi trust	29.4	31.7
Total Assets	269.6	304.2
Evergy Kansas Central \| Core bond fund
Assets
Total nuclear decommissioning trust	37.9	39.3
Total rabbi trust	23.4	25.3
Evergy Kansas Central \| High-yield bond fund
Assets
Total nuclear decommissioning trust	18.8	22.3
Evergy Kansas Central \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	16.3	19.4
Evergy Kansas Central \| Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	13.9	16.4
Total rabbi trust	5.9	6.3
Evergy Kansas Central \| Alternative investments fund
Assets
Total nuclear decommissioning trust	25.3	23.9
Evergy Kansas Central \| Real estate securities fund
Assets
Total nuclear decommissioning trust	12.8	12.6
Evergy Kansas Central \| Cash equivalents
Assets
Total nuclear decommissioning trust	2.6	0.5
Total rabbi trust	0.1	0.1
Evergy Kansas Central \| Level 1
Assets
Total nuclear decommissioning trust	194.9	228.5
Total rabbi trust	0.1	0.1
Total Assets	195.0	228.6
Evergy Kansas Central \| Level 1 \| Core bond fund
Assets
Total nuclear decommissioning trust	37.9	39.3
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 1 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	18.8	22.3
Evergy Kansas Central \| Level 1 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	16.3	19.4
Evergy Kansas Central \| Level 1 \| Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	13.9	16.4
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 1 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 1 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 1 \| Cash equivalents
Assets
Total nuclear decommissioning trust	2.6	0.5
Total rabbi trust	0.1	0.1
Evergy Kansas Central \| Level 2
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Total Assets	0.0	0.0
Evergy Kansas Central \| Level 2 \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 2 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Total Assets	0.0	0.0
Evergy Kansas Central \| Level 3 \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| Alternative investments fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| Real estate securities fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Level 3 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| NAV
Assets
Total nuclear decommissioning trust	45.3	44.0
Total rabbi trust	29.3	31.6
Total Assets	74.6	75.6
Evergy Kansas Central \| NAV \| Core bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	23.4	25.3
Evergy Kansas Central \| NAV \| High-yield bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| NAV \| Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| NAV \| Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	5.9	6.3
Evergy Kansas Central \| NAV \| Alternative investments fund
Assets
Total nuclear decommissioning trust	25.3	23.9
Evergy Kansas Central \| NAV \| Real estate securities fund
Assets
Total nuclear decommissioning trust	12.8	12.6
Evergy Kansas Central \| NAV \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Total rabbi trust	0.0	0.0
Evergy Kansas Central \| Domestic \| Equity securities
Assets
Total nuclear decommissioning trust	70.7	86.1
Evergy Kansas Central \| Domestic \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	63.5	78.6
Evergy Kansas Central \| Domestic \| Level 2 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Domestic \| Level 3 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| Domestic \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	7.2	7.5
Evergy Kansas Central \| International \| Equity securities
Assets
Total nuclear decommissioning trust	41.9	52.0
Evergy Kansas Central \| International \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	41.9	52.0
Evergy Kansas Central \| International \| Level 2 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| International \| Level 3 \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Kansas Central \| International \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro
Assets
Total nuclear decommissioning trust	257.2	300.7
Total self-insured health plan trust	11.9	9.9
Total Assets	269.1	310.6
Evergy Metro \| Equity securities
Assets
Total nuclear decommissioning trust	161.2	211.1
Total self-insured health plan trust	0.4	0.5
Evergy Metro \| Cash equivalents
Assets
Total nuclear decommissioning trust	3.7	3.1
Evergy Metro \| U.S. Treasury
Assets
Total nuclear decommissioning trust	53.2	50.3
Evergy Metro \| U.S. Agency
Assets
Total nuclear decommissioning trust	0.5	0.4
Evergy Metro \| State and local obligations
Assets
Total nuclear decommissioning trust	2.1	2.2
Evergy Metro \| Corporate bonds
Assets
Total nuclear decommissioning trust	35.7	33.2
Evergy Metro \| Foreign governments
Assets
Total nuclear decommissioning trust	0.1	0.1
Evergy Metro \| Other
Assets
Total nuclear decommissioning trust	0.7	0.3
Evergy Metro \| Debt securities
Assets
Total self-insured health plan trust	6.5	6.7
Evergy Metro \| Cash and cash equivalents
Assets
Total self-insured health plan trust	5.0	2.7
Evergy Metro \| Level 1
Assets
Total nuclear decommissioning trust	218.1	264.5
Total self-insured health plan trust	6.8	4.6
Total Assets	224.9	269.1
Evergy Metro \| Level 1 \| Equity securities
Assets
Total nuclear decommissioning trust	161.2	211.1
Total self-insured health plan trust	0.4	0.5
Evergy Metro \| Level 1 \| Cash equivalents
Assets
Total nuclear decommissioning trust	3.7	3.1
Evergy Metro \| Level 1 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	53.2	50.3
Evergy Metro \| Level 1 \| U.S. Agency
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 1 \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 1 \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 1 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 1 \| Other
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 1 \| Debt securities
Assets
Total self-insured health plan trust	1.4	1.4
Evergy Metro \| Level 1 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	5.0	2.7
Evergy Metro \| Level 2
Assets
Total nuclear decommissioning trust	39.1	36.2
Total self-insured health plan trust	5.1	5.3
Total Assets	44.2	41.5
Evergy Metro \| 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 \| Level 2 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 2 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 2 \| U.S. Agency
Assets
Total nuclear decommissioning trust	0.5	0.4
Evergy Metro \| Level 2 \| State and local obligations
Assets
Total nuclear decommissioning trust	2.1	2.2
Evergy Metro \| Level 2 \| Corporate bonds
Assets
Total nuclear decommissioning trust	35.7	33.2
Evergy Metro \| Level 2 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.1	0.1
Evergy Metro \| Level 2 \| Other
Assets
Total nuclear decommissioning trust	0.7	0.3
Evergy Metro \| Level 2 \| Debt securities
Assets
Total self-insured health plan trust	5.1	5.3
Evergy Metro \| Level 2 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Level 3
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total Assets	0.0	0.0
Evergy Metro \| 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 \| Level 3 \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| U.S. Agency
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| Other
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| Level 3 \| Debt securities
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| Level 3 \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| NAV
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Total Assets	0.0	0.0
Evergy Metro \| NAV \| Equity securities
Assets
Total nuclear decommissioning trust	0.0	0.0
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| NAV \| Cash equivalents
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| U.S. Treasury
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| U.S. Agency
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| State and local obligations
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| Corporate bonds
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| Foreign governments
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| Other
Assets
Total nuclear decommissioning trust	0.0	0.0
Evergy Metro \| NAV \| Debt securities
Assets
Total self-insured health plan trust	0.0	0.0
Evergy Metro \| NAV \| Cash and cash equivalents
Assets
Total self-insured health plan trust	0.0	0.0
Other Evergy
Assets
Total rabbi trust	13.7	13.8
Other Evergy \| Fixed income fund
Assets
Total rabbi trust	13.2	13.3
Other Evergy \| Cash and cash equivalents
Assets
Total rabbi trust	0.5	0.5
Other Evergy \| Level 1
Assets
Total rabbi trust	0.5	0.5
Other Evergy \| Level 1 \| Fixed income fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 1 \| Cash and cash equivalents
Assets
Total rabbi trust	0.5	0.5
Other Evergy \| Level 2
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 2 \| Fixed income fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 2 \| Cash and cash equivalents
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 3
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 3 \| Fixed income fund
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| Level 3 \| Cash and cash equivalents
Assets
Total rabbi trust	0.0	0.0
Other Evergy \| NAV
Assets
Total rabbi trust	13.2	13.3
Other Evergy \| NAV \| Fixed income fund
Assets
Total rabbi trust	13.2	13.3
Other Evergy \| NAV \| Cash and cash equivalents
Assets
Total rabbi trust	$ 0.0	$ 0.0

FAIR VALUE MEASUREMENTS - NAV (Details) $ in Millions	3 Months Ended
FAIR VALUE MEASUREMENTS - NAV (Details) $ in Millions	Mar. 31, 2020 USD ($) extension fund	Dec. 31, 2019 USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 3.2	$ 3.3
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
Evergy Kansas Central \| Nuclear decommissioning trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	45.3
Unfunded Commitments	3.2	3.3
Evergy Kansas Central \| Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0.0	0.0
Evergy Kansas Central \| Combination debt/equity/other fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0.0	0.0
Evergy Kansas Central \| Rabbi trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0.0	0.0
Other Evergy
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	$ 3.2	3.3
NAV, number of funds \| fund	5
NAV, number of funds making distributions \| fund	3
Domestic \| Evergy Kansas Central \| Equity Securities - Fourth Fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Length of settlement	15 years
NAV, number of extensions \| extension	3
NAV, extension term	1 year
Domestic \| Evergy Kansas Central \| Equity Securities - Fifth Fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Length of settlement	15 years
Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 497.4	573.2
Total rabbi trust	43.1	45.5
Total Assets	552.4	628.6
Fair Value, Measurements, Recurring \| Evergy Kansas Central
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	240.2	272.5
Total rabbi trust	29.4	31.7
Total Assets	269.6	304.2
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	25.3	23.9
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	12.8	12.6
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	37.9	39.3
Total rabbi trust	23.4	25.3
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 nuclear decommissioning trust	13.9	16.4
Total rabbi trust	5.9	6.3
Fair Value, Measurements, Recurring \| Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	13.7	13.8
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	70.7	86.1
NAV \| Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	45.3	44.0
Total rabbi trust	42.5	44.9
Total Assets	87.8	88.9
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	45.3	44.0
Total rabbi trust	29.3	31.6
Total Assets	74.6	75.6
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	$ 25.3	23.9
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	$ 12.8	12.6
Length of Settlement	65 days
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Nuclear decommissioning trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust		44.0
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
Total rabbi trust	23.4	25.3
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 nuclear decommissioning trust	0.0	0.0
Total rabbi trust	5.9	6.3
NAV \| Fair Value, Measurements, Recurring \| Evergy Kansas Central \| Rabbi trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	29.3	31.6
NAV \| Fair Value, Measurements, Recurring \| Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	13.2	13.3
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	$ 7.2	$ 7.5

FAIR VALUE MEASUREMENTS - Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ (88.3)	$ 40.5
Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(89.3)	37.9
Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	3.0	2.1
Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(2.0)	0.5
Evergy Kansas Central
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(40.2)	18.5
Evergy Kansas Central \| Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(38.1)	17.2
Evergy Kansas Central \| Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(2.1)	1.3
Evergy Metro
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(48.2)	22.8
Evergy Metro \| Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	(51.2)	20.7
Evergy Metro \| Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 3.0	$ 2.1

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Evergy Metro \| Money Pool
Related Party Transaction [Line Items]
Due from (to) related parties	$ 0		$ 0
Evergy Metro \| Evergy Missouri West Inc
Related Party Transaction [Line Items]
Due from (to) related parties	85,200,000		78,700,000
Evergy Metro \| Evergy Missouri West Inc \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	39,300,000	$ 42,000,000.0
Evergy Metro \| Evergy Kansas Central
Related Party Transaction [Line Items]
Due from (to) related parties	16,100,000		14,900,000
Evergy Metro \| Evergy Kansas Central \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	48,100,000	31,500,000
Evergy Metro \| Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	26,500,000		(4,300,000)
Evergy Metro \| Evergy \| Income Taxes Payable
Related Party Transaction [Line Items]
Due from (to) related parties	4,200,000		14,100,000
Evergy Kansas Central \| Evergy Missouri West Inc
Related Party Transaction [Line Items]
Due from (to) related parties	1,300,000		3,100,000
Evergy Kansas Central \| Evergy Missouri West Inc \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	4,300,000	6,300,000
Evergy Kansas Central \| Evergy Metro
Related Party Transaction [Line Items]
Due from (to) related parties	(16,100,000)		(14,900,000)
Evergy Kansas Central \| Evergy Metro \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	15,000,000.0	$ 7,400,000
Evergy Kansas Central \| Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	(700,000)		6,900,000
Evergy Kansas Central \| Evergy \| Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	(33,600,000)		(37,900,000)
Evergy Kansas Central \| Evergy Metro \| Subsidiary of Common Parent
Related Party Transaction [Line Items]
Right-of-use assets under operating leases	29,300,000		29,500,000
Lease liability recorded in other current liabilities	700,000		600,000
Total long-term obligations under operating leases	$ 28,600,000		$ 28,900,000
Jointly Owned Electricity Generation Plant Iatan No 1 And 2 \| Evergy Missouri West Inc
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	18.00%
Jeffrey Energy Center \| Evergy Missouri West Inc
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	8.00%
La Cygne Station \| Evergy Kansas Central
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	50.00%

TAXES - Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Current income taxes
Federal	$ 2.4	$ 11.9
State	(0.4)	(0.6)
Total	2.0	11.3
Deferred income taxes
Federal	6.0	(7.3)
State	2.8	6.3
Total	8.8	(1.0)
Investment tax credit amortization	(0.7)	(1.0)
Income tax expense	$ 10.1	$ 9.3
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effect of:
COLI policies	(1.60%)	(1.80%)
State income taxes	2.30%	4.60%
Flow through depreciation for plant-related differences	(3.90%)	(4.40%)
Federal tax credits	(4.50%)	(3.90%)
Non-controlling interest	(0.30%)	(0.30%)
AFUDC equity	(0.30%)	0.00%
Amortization of federal investment tax credits	(0.50%)	(0.50%)
Valuation allowance	0.00%	(7.00%)
Stock compensation	0.10%	0.10%
Officer compensation limitation	0.10%	0.20%
Other	(0.20%)	0.20%
Effective income tax rate	12.20%	8.20%
Evergy Kansas Central
Current income taxes
Federal	$ 24.2	$ 10.4
State	(0.4)	0.4
Total	23.8	10.8
Deferred income taxes
Federal	(18.2)	(3.2)
State	2.6	3.6
Total	(15.6)	0.4
Investment tax credit amortization	(0.4)	(0.7)
Income tax expense	$ 7.8	$ 10.5
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effect of:
COLI policies	(3.10%)	(3.20%)
State income taxes	2.70%	5.00%
Flow through depreciation for plant-related differences	0.00%	(0.10%)
Federal tax credits	(6.60%)	(6.10%)
Non-controlling interest	(0.60%)	(0.60%)
AFUDC equity	(0.40%)	(0.10%)
Amortization of federal investment tax credits	(0.70%)	(0.70%)
Valuation allowance	0.00%	(2.10%)
Stock compensation	(0.10%)	(0.10%)
Other	0.10%	0.30%
Effective income tax rate	12.30%	13.30%
Evergy Metro
Current income taxes
Federal	$ 11.6	$ 7.9
State	1.2	0.8
Total	12.8	8.7
Deferred income taxes
Federal	(9.5)	(5.2)
State	(0.4)	0.4
Total	(9.9)	(4.8)
Investment tax credit amortization	(0.3)	(0.2)
Income tax expense	$ 2.6	$ 3.7
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%
Effect of:
COLI policies	0.00%	(0.10%)
State income taxes	2.20%	4.90%
Flow through depreciation for plant-related differences	(7.70%)	(7.20%)
Federal tax credits	(2.40%)	(1.50%)
AFUDC equity	(0.20%)	0.00%
Amortization of federal investment tax credits	(0.40%)	(0.30%)
Stock compensation	(3.60%)	1.00%
Officer compensation limitation	0.00%	0.30%
Other	0.40%	0.30%
Effective income tax rate	9.30%	18.40%