Evergy Kansas Central 10-Q 5 Aug 20 2020 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 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		226,827,540
Entity Central Index Key	0001711269
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
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

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 176.2	$ 23.2
Receivables, net of allowance for credit losses of $18.0 and $10.5 respectively	396	228.5
Accounts receivable pledged as collateral	297	339
Fuel inventory and supplies	520.3	481.6
Income taxes receivable	112.7	85.5
Regulatory assets	207.7	231.7
Prepaid expenses and other assets	80.5	78.2
Total Current Assets	1,790.4	1,467.7
OTHER ASSETS:
Regulatory assets	1,714.6	1,740.5
Nuclear decommissioning trust fund	557.4	573.2
Goodwill	2,336.6	2,336.6
Other	501.1	511.5
Total Other Assets	5,109.7	5,161.8
TOTAL ASSETS	26,250.4	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	467	561.9
Collateralized note payable	297	339
Accounts payable	332.8	528.8
Accrued taxes	200.2	145.1
Accrued interest	92.8	122.3
Regulatory liabilities	51.7	63.3
Asset retirement obligations	66.7	71.3
Accrued compensation and benefits	61.1	59.2
Other	147.2	161.6
Total Current Liabilities	2,086.1	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,602.2	1,744.4
Unamortized investment tax credits	188.2	375.4
Regulatory liabilities	2,581.2	2,248.3
Pension and post-retirement liability	1,007.6	1,017.6
Asset retirement obligations	619.1	602.8
Other	357.9	340.7
Total Long-Term Liabilities	15,637.4	15,094.7
Commitments and Contingencies (Note 10)
Evergy, Inc. Shareholders' Equity:
Common stock - 600,000,000 shares authorized, without par value 226,825,105 and 226,641,443 shares issued, stated value	7,073.5	7,070.4
Retained earnings	1,524.1	1,551.5
Accumulated other comprehensive loss	(49.8)	(50)
Total Evergy, Inc. Shareholders' Equity	8,547.8	8,571.9
Noncontrolling Interests	(20.9)	(26.6)
Total Equity	8,526.9	8,545.3
TOTAL LIABILITIES AND EQUITY	26,250.4	25,975.9
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	19,191.8	19,184.4
CURRENT LIABILITIES:
Current maturities of long-term debt	350.8	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	9,281.2	8,746.7
Variable Interest Entities
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	158.5	162
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	$ 0	$ 18.8

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 18	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,825,105	226,641,443

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
OPERATING REVENUES	$ 1,184.7	$ 1,221.7	$ 2,301.4	$ 2,438.6
OPERATING EXPENSES:
Fuel and purchased power	258.1	291.6	516.3	621.6
SPP network transmission costs	69.7	62.8	131.7	126.3
Operating and maintenance	272.7	288.6	560.9	595.5
Depreciation and amortization	221.6	215.4	440.1	429
Taxes other than income tax	90.9	91.6	183.2	184.9
Total Operating Expenses	913	950	1,832.2	1,957.3
INCOME FROM OPERATIONS	271.7	271.7	469.2	481.3
OTHER INCOME (EXPENSE):
Investment earnings	3.1	2.6	2.3	5.8
Other income	7.6	6.1	9.9	14.3
Other expense	(14.9)	(18.1)	(37.6)	(37.5)
Total Other Expense, Net	(4.2)	(9.4)	(25.4)	(17.4)
Interest expense	99.5	95.4	195.7	186.5
INCOME BEFORE INCOME TAXES	168	166.9	248.1	277.4
Income tax expense	33.7	24.4	43.8	33.7
Equity in earnings of equity method investees, net of income taxes	2	2.1	4.2	4.3
NET INCOME	136.3	144.6	208.5	248
Less: Net income attributable to noncontrolling interests	2.9	4.9	5.7	8.8
Net income attributable to Evergy, Inc.	$ 133.4	$ 139.7	$ 202.8	$ 239.2
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)	$ 0.59	$ 0.57	$ 0.89	$ 0.96
Diluted earnings per common share (in dollars per share)	$ 0.59	$ 0.57	$ 0.89	$ 0.96
AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	227.2	243.2	227.1	248
Diluted (in shares)	227.6	243.4	227.6	248.2
COMPREHENSIVE INCOME
Net income	$ 136.3	$ 144.6	$ 208.5	$ 248
Derivative hedging activity
Loss on derivative hedging instruments	0	(21.2)	0	(35)
Income tax benefit	0	5.4	0	9
Net loss on derivative hedging instruments	0	(15.8)	0	(26)
Reclassification to expenses, net of tax	(1)	0	0.3	0
Derivative hedging activity, net of tax	(1)	(15.8)	0.3	(26)
Defined benefit pension plans
Amortization of net losses included in net periodic benefit costs, net of tax	(0.1)	0	(0.1)	0
Change in unrecognized pension expense, net of tax	(0.1)	0	(0.1)	0
Total other comprehensive income (loss)	(1.1)	(15.8)	0.2	(26)
COMPREHENSIVE INCOME	135.2	128.8	208.7	222
Less: comprehensive income attributable to noncontrolling interest	2.9	4.9	5.7	8.8
COMPREHENSIVE INCOME	$ 132.3	$ 123.9	$ 203	$ 213.2

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 208.5	$ 248
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	440.1	429
Amortization of nuclear fuel	29	29.4
Amortization of deferred refueling outage	12.8	12.9
Amortization of corporate-owned life insurance	8.5	9.9
Non-cash compensation	8.7	9.4
Net deferred income taxes and credits	69.7	13.9
Allowance for equity funds used during construction	(4.6)	(0.4)
Payments for asset retirement obligations	(4)	(9.9)
Equity in earnings of equity method investees, net of income taxes	(4.2)	(4.3)
Income from corporate-owned life insurance	(6.3)	(15.1)
Other	0.5	(2.4)
Changes in working capital items:
Accounts receivable	(115.4)	(78.3)
Accounts receivable pledged as collateral	42	53
Fuel inventory and supplies	(38.4)	22.5
Prepaid expenses and other current assets	13.9	36.2
Accounts payable	(123.6)	(136)
Accrued taxes	27.9	99.9
Other current liabilities	(84.4)	(121.1)
Changes in other assets	66	41.1
Changes in other liabilities	(24.2)	(4)
Cash Flows from Operating Activities	522.5	633.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(635.6)	(572.4)
Purchase of securities - trusts	(36.9)	(27)
Sale of securities - trusts	30.3	24.5
Investment in corporate-owned life insurance	(16.1)	(17)
Proceeds from investment in corporate-owned life insurance	58.6	68.4
Other investing activities	(1.5)	(6)
Cash Flows used in Investing Activities	(601.2)	(529.5)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(94.9)	1,500.5
Collateralized short-term borrowings, net	(42)	(53)
Proceeds from long-term debt	889.5	493.3
Retirements of long-term debt	(251.1)	(701.1)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	53.4	56.1
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(51.1)	(51.4)
Cash dividends paid	(229)	(235.6)
Repurchase of common stock under repurchase plan	0	(1,128.7)
Other financing activities	(10.8)	(7.3)
Cash Flows from (used in) Financing Activities	231.7	(157.5)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	153	(53.3)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	$ 176.2	$ 107

Consolidated Statements of Chan

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	$ (3)	$ (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, 2018		255,326,252
Beginning balance at Dec. 31, 2018	9,990.7	$ 8,685.2	1,346	(3)	(37.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	248
Derivative hedging activity, net of tax	(26)
Change in unrecognized pension expense, net of tax	0
Ending balance (in shares) at Jun. 30, 2019		235,465,848
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	(29)	(28.4)
Beginning balance (in shares) at Mar. 31, 2019		244,838,786
Beginning balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	(13.2)	(31.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144.6		139.7		4.9
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		41,982
Issuance of stock compensation and reinvested dividends, net of tax withholding	(0.7)	$ (0.7)
Dividends declared on common stock	(115.8)		(115.8)
Dividend equivalents declared	(0.5)		(0.5)
Stock compensation expense	$ 4	4
Repurchase of common stock (in shares)	(9,414,920)
Repurchase of common stock	$ (550.4)	(550.4)
Distributions to shareholders of noncontrolling interests	(2.1)				(2.1)
Derivative hedging activity, net of tax	(15.8)			(15.8)
Change in unrecognized pension expense, net of tax	0
Other	(0.3)	$ (0.3)
Ending balance (in shares) at Jun. 30, 2019		235,465,848
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	(29)	(28.4)
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)	(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)	$ (3)
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)
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)	(26.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	208.5
Derivative hedging activity, net of tax	0.3
Change in unrecognized pension expense, net of tax	(0.1)
Ending balance (in shares) at Jun. 30, 2020		226,825,105
Ending balance at Jun. 30, 2020	8,526.9	$ 7,073.5	1,524.1	(49.8)	(20.9)
Beginning balance (in shares) at Mar. 31, 2020		226,738,748
Beginning balance at Mar. 31, 2020	8,505.4	$ 7,072.2	1,505.7	(48.7)	(23.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	136.3		133.4		2.9
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		86,357
Issuance of stock compensation and reinvested dividends, net of tax withholding	(2.9)	$ (2.9)
Dividends declared on common stock	(114.6)		(114.6)
Dividend equivalents declared	(0.4)		(0.4)
Stock compensation expense	4.1	4.1
Derivative hedging activity, net of tax	(1)			(1)
Change in unrecognized pension expense, net of tax	(0.1)			(0.1)
Other	0.1	$ 0.1
Ending balance (in shares) at Jun. 30, 2020		226,825,105
Ending balance at Jun. 30, 2020	$ 8,526.9	$ 7,073.5	$ 1,524.1	$ (49.8)	$ (20.9)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.505	$ 0.505	$ 0.475	$ 0.475

Consolidated Balance Sheets - E

Consolidated Balance Sheets - Evergy Kansas Central, Inc - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 176.2	$ 23.2
Receivables, net of allowance for credit losses, $4.9 and $3.8 respectively	396	228.5
Accounts receivable pledged as collateral	297	339
Fuel inventory and supplies	520.3	481.6
Income taxes receivable	112.7	85.5
Regulatory assets	207.7	231.7
Prepaid expenses and other assets	80.5	78.2
Total Current Assets	1,790.4	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,191.8	19,184.4
OTHER ASSETS:
Regulatory assets	1,714.6	1,740.5
Nuclear decommissioning trust fund	557.4	573.2
Other	501.1	511.5
Total Other Assets	5,109.7	5,161.8
TOTAL ASSETS	26,250.4	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	467	561.9
Collateralized note payable	297	339
Accounts payable	332.8	528.8
Accrued taxes	200.2	145.1
Accrued interest	92.8	122.3
Regulatory liabilities	51.7	63.3
Asset retirement obligations	66.7	71.3
Other	147.2	161.6
Total Current Liabilities	2,086.1	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,602.2	1,744.4
Unamortized investment tax credits	188.2	375.4
Regulatory liabilities	2,581.2	2,248.3
Pension and post-retirement liability	1,007.6	1,017.6
Asset retirement obligations	619.1	602.8
Other	357.9	340.7
Total Long-Term Liabilities	15,637.4	15,094.7
Commitments and Contingencies (Note 10)
Evergy, Inc. Shareholders' Equity:
Common stock	7,073.5	7,070.4
Retained earnings	1,524.1	1,551.5
Total Evergy, Inc. Shareholders' Equity	8,547.8	8,571.9
Noncontrolling Interests	(20.9)	(26.6)
Total Equity	8,526.9	8,545.3
TOTAL LIABILITIES AND EQUITY	26,250.4	25,975.9
Evergy Kansas Central
CURRENT ASSETS:
Cash and cash equivalents	52.2	5.2
Receivables, net of allowance for credit losses, $4.9 and $3.8 respectively	265.6	140.4
Related party receivables	15.4	9.9
Accounts receivable pledged as collateral	146	171
Fuel inventory and supplies	281.4	266.4
Income taxes receivable	26.6	30.4
Regulatory assets	93	93.3
Prepaid expenses and other assets	34.3	34.3
Total Current Assets	914.5	750.9
PROPERTY, PLANT AND EQUIPMENT, NET	9,833.5	9,864.9
OTHER ASSETS:
Regulatory assets	710.2	730.4
Nuclear decommissioning trust fund	263.2	272.5
Other	256.3	266
Total Other Assets	1,229.7	1,268.9
TOTAL ASSETS	12,136.2	12,046.7
CURRENT LIABILITIES:
Notes payable and commercial paper	215	249.2
Collateralized note payable	146	171
Accounts payable	159.8	200.5
Related party payables	17.7	14.8
Accrued taxes	105	98.7
Accrued interest	45	74.2
Regulatory liabilities	40	42.3
Asset retirement obligations	23.3	23.3
Other	132.7	130.2
Total Current Liabilities	903.3	1,286.5
LONG-TERM LIABILITIES:
Deferred income taxes	819.3	817.7
Unamortized investment tax credits	66.6	253.2
Regulatory liabilities	1,402	1,132.5
Pension and post-retirement liability	467.7	495.5
Asset retirement obligations	258.7	249.6
Other	185.6	151.8
Total Long-Term Liabilities	7,130.3	6,555.2
Commitments and Contingencies (Note 10)
Evergy, Inc. Shareholders' Equity:
Common stock	2,737.6	2,737.6
Retained earnings	1,385.9	1,494
Total Evergy, Inc. Shareholders' Equity	4,123.5	4,231.6
Noncontrolling Interests	(20.9)	(26.6)
Total Equity	4,102.6	4,205
TOTAL LIABILITIES AND EQUITY	12,136.2	12,046.7
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT LIABILITIES:
Current maturities of long-term debt	350.8	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	9,281.2	8,746.7
Consolidated Entity Excluding Variable Interest Entities (VIE) | Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	9,833.5	9,864.9
CURRENT LIABILITIES:
Current maturities of long-term debt	0	250
LONG-TERM LIABILITIES:
Long-term debt, net	3,930.4	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	18.8
Variable Interest Entities | Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	158.5	162
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	$ 0	$ 18.8

Consolidated Balance Sheets -_2

Consolidated Balance Sheets - Evergy Kansas Central, Inc (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Allowance for credit losses	$ 18	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,825,105	226,641,443
Evergy Kansas Central
Allowance for credit losses	$ 4.9	$ 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 Inco

Consolidated Statements of Income - Evergy Kansas Central, Inc - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
OPERATING REVENUES	$ 1,184.7	$ 1,221.7	$ 2,301.4	$ 2,438.6
OPERATING EXPENSES:
Fuel and purchased power	258.1	291.6	516.3	621.6
SPP network transmission costs	69.7	62.8	131.7	126.3
Operating and maintenance	272.7	288.6	560.9	595.5
Depreciation and amortization	221.6	215.4	440.1	429
Taxes other than income tax	90.9	91.6	183.2	184.9
Total Operating Expenses	913	950	1,832.2	1,957.3
INCOME FROM OPERATIONS	271.7	271.7	469.2	481.3
OTHER INCOME (EXPENSE):
Investment earnings	3.1	2.6	2.3	5.8
Other income	7.6	6.1	9.9	14.3
Other expense	(14.9)	(18.1)	(37.6)	(37.5)
Total Other Income (Expense), Net	4.2	9.4	25.4	17.4
Interest expense	99.5	95.4	195.7	186.5
INCOME BEFORE INCOME TAXES	168	166.9	248.1	277.4
Income tax expense	33.7	24.4	43.8	33.7
Equity in earnings of equity method investees, net of income taxes	2	2.1	4.2	4.3
NET INCOME (LOSS)	136.3	144.6	208.5	248
Less: Net income attributable to noncontrolling interests	2.9	4.9	5.7	8.8
Net income (loss) attributable to Evergy, Inc.	133.4	139.7	202.8	239.2
Evergy Kansas Central
OPERATING REVENUES	570.8	585.5	1,130.9	1,182.3
OPERATING EXPENSES:
Fuel and purchased power	102.1	107.7	201.3	230.4
SPP network transmission costs	69.7	62.8	131.7	126.3
Operating and maintenance	115.2	127.4	238.9	256
Depreciation and amortization	113.5	110.6	225.6	220.4
Taxes other than income tax	49.1	49.4	97.7	97.3
Total Operating Expenses	449.6	457.9	895.2	930.4
INCOME FROM OPERATIONS	121.2	127.6	235.7	251.9
OTHER INCOME (EXPENSE):
Investment earnings	4.1	0.9	2.4	2.4
Other income	6.5	3.4	8.6	10.7
Other expense	(5.7)	(8.5)	(17.2)	(19.1)
Total Other Income (Expense), Net	(4.9)	4.2	6.2	6
Interest expense	45.8	47.5	87.4	92.4
INCOME BEFORE INCOME TAXES	80.3	75.9	142.1	153.5
Income tax expense	118.9	9.9	126.7	20.4
Equity in earnings of equity method investees, net of income taxes	1	1.2	2.2	2.4
NET INCOME (LOSS)	(37.6)	67.2	17.6	135.5
Less: Net income attributable to noncontrolling interests	2.9	4.9	5.7	8.8
Net income (loss) attributable to Evergy, Inc.	$ (40.5)	$ 62.3	$ 11.9	$ 126.7

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - Evergy Kansas Central, Inc - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 208.5	$ 248
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	440.1	429
Amortization of nuclear fuel	29	29.4
Amortization of deferred refueling outage	12.8	12.9
Amortization of corporate-owned life insurance	8.5	9.9
Net deferred income taxes and credits	69.7	13.9
Allowance for equity funds used during construction	(4.6)	(0.4)
Payments for asset retirement obligations	(4)	(9.9)
Equity in earnings of equity method investees, net of income taxes	(4.2)	(4.3)
Income from corporate-owned life insurance	(6.3)	(15.1)
Other	0.5	(2.4)
Changes in working capital items:
Accounts receivable	(115.4)	(78.3)
Accounts receivable pledged as collateral	42	53
Fuel inventory and supplies	(38.4)	22.5
Prepaid expenses and other current assets	13.9	36.2
Accounts payable	(123.6)	(136)
Accrued taxes	27.9	99.9
Other current liabilities	(84.4)	(121.1)
Changes in other assets	66	41.1
Changes in other liabilities	(24.2)	(4)
Cash Flows from Operating Activities	522.5	633.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(635.6)	(572.4)
Purchase of securities - trusts	(36.9)	(27)
Sale of securities - trusts	30.3	24.5
Investment in corporate-owned life insurance	(16.1)	(17)
Proceeds from investment in corporate-owned life insurance	58.6	68.4
Other investing activities	(1.5)	(6)
Cash Flows used in Investing Activities	(601.2)	(529.5)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(94.9)	1,500.5
Collateralized short-term debt, net	(42)	(53)
Proceeds from long-term debt	889.5	493.3
Repayments of Long-term Debt	(251.1)	(701.1)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	53.4	56.1
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(51.1)	(51.4)
Cash dividends paid	(229)	(235.6)
Other financing activities	(10.8)	(7.3)
Cash Flows from (used in) Financing Activities	231.7	(157.5)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	153	(53.3)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	176.2	107
Evergy Kansas Central
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	17.6	135.5
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	225.6	220.4
Amortization of nuclear fuel	14.5	14.7
Amortization of deferred refueling outage	6.4	6.5
Amortization of corporate-owned life insurance	8.5	9.9
Net deferred income taxes and credits	121.5	(6.3)
Allowance for equity funds used during construction	(3.9)	(0.1)
Payments for asset retirement obligations	(0.4)	(8.2)
Equity in earnings of equity method investees, net of income taxes	(2.2)	(2.4)
Income from corporate-owned life insurance	(6.3)	(14.4)
Other	(2.7)	(2.7)
Changes in working capital items:
Accounts receivable	(79.3)	(49.5)
Accounts receivable pledged as collateral	25	33
Fuel inventory and supplies	(14.7)	8.8
Prepaid expenses and other current assets	(2.1)	7.2
Accounts payable	17.4	(19.8)
Accrued taxes	10.1	48.9
Other current liabilities	(65.8)	(36.4)
Changes in other assets	23.2	13.1
Changes in other liabilities	(30.6)	(9.9)
Cash Flows from Operating Activities	261.8	348.3
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(284)	(287)
Purchase of securities - trusts	(11.8)	(9.6)
Sale of securities - trusts	10.2	11
Investment in corporate-owned life insurance	(15.3)	(16.3)
Proceeds from investment in corporate-owned life insurance	58.6	67.8
Other investing activities	(0.2)	(3)
Cash Flows used in Investing Activities	(242.5)	(237.1)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(34.2)	325.3
Collateralized short-term debt, net	(25)	(33)
Proceeds from long-term debt	493	0
Repayments of Long-term Debt	(250)	(300)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Borrowings against cash surrender value of corporate-owned life insurance	50.4	53.1
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(51.1)	(51.4)
Cash dividends paid	(120)	(110)
Other financing activities	(3.1)	(5.1)
Cash Flows from (used in) Financing Activities	27.7	(151.4)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	47	(40.2)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	5.2	44.5
End of period	$ 52.2	$ 4.3

Consolidated Statements of Ch_3

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 CentralCommon Stock	Evergy Kansas CentralRetained earnings	Evergy Kansas CentralNon-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	$ (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)		(110)
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	(31.2)
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	(37.5)	3,960.7	$ 2,737.6	1,260.6	(37.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	248				135.5
Ending balance (in shares) at Jun. 30, 2019		235,465,848				1
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	(28.4)	3,986.5	$ 2,737.6	1,277.3	(28.4)
Beginning balance (in shares) at Mar. 31, 2019		244,838,786				1
Beginning balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	(31.2)	3,921.4	$ 2,737.6	1,215	(31.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144.6		139.7	4.9	67.2		62.3	4.9
Dividends declared on common stock	(115.8)		(115.8)
Consolidation of noncontrolling interests	4	4
Distributions to shareholders of noncontrolling interests	(0.3)	$ (0.3)			(2.1)			(2.1)
Ending balance (in shares) at Jun. 30, 2019		235,465,848				1
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	(28.4)	3,986.5	$ 2,737.6	1,277.3	(28.4)
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	$ 2,737.6	1,494	(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)		(60)
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)
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	$ 2,737.6	1,494	(26.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	208.5				17.6
Ending balance (in shares) at Jun. 30, 2020		226,825,105				1
Ending balance at Jun. 30, 2020	8,526.9	$ 7,073.5	1,524.1	(20.9)	4,102.6	$ 2,737.6	1,385.9	(20.9)
Beginning balance (in shares) at Mar. 31, 2020		226,738,748				1
Beginning 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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	136.3		133.4	2.9	(37.6)		(40.5)	2.9
Dividends declared on common stock	(114.6)		(114.6)		(60)		(60)
Consolidation of noncontrolling interests	4.1	4.1
Distributions to shareholders of noncontrolling interests	0.1	$ 0.1
Ending balance (in shares) at Jun. 30, 2020		226,825,105				1
Ending balance at Jun. 30, 2020	$ 8,526.9	$ 7,073.5	$ 1,524.1	$ (20.9)	$ 4,102.6	$ 2,737.6	$ 1,385.9	$ (20.9)

Consolidated Balance Sheets -_3

Consolidated Balance Sheets - Evergy Metro, Inc - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 176.2	$ 23.2
Receivables, net of allowance for credit losses of $9.0 and $4.6, respectively	396	228.5
Accounts receivable pledged as collateral	297	339
Fuel inventory and supplies	520.3	481.6
Income taxes receivable	112.7	85.5
Regulatory assets	207.7	231.7
Total Current Assets	1,790.4	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,191.8	19,184.4
OTHER ASSETS:
Regulatory assets	1,714.6	1,740.5
Nuclear decommissioning trust fund	557.4	573.2
Other	501.1	511.5
Total Other Assets	5,109.7	5,161.8
TOTAL ASSETS	26,250.4	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	467	561.9
Collateralized note payable	297	339
Accounts payable	332.8	528.8
Accrued taxes	200.2	145.1
Accrued interest	92.8	122.3
Regulatory liabilities	51.7	63.3
Asset retirement obligations	66.7	71.3
Accrued compensation and benefits	61.1	59.2
Other	147.2	161.6
Total Current Liabilities	2,086.1	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,602.2	1,744.4
Unamortized investment tax credits	188.2	375.4
Regulatory liabilities	2,581.2	2,248.3
Pension and post-retirement liability	1,007.6	1,017.6
Asset retirement obligations	619.1	602.8
Other	357.9	340.7
Total Long-Term Liabilities	15,637.4	15,094.7
Commitments and Contingencies (Note 10)
EQUITY:
Common stock	7,073.5	7,070.4
Retained earnings	1,524.1	1,551.5
Accumulated other comprehensive loss	(49.8)	(50)
Total Evergy, Inc. Shareholders' Equity	8,547.8	8,571.9
TOTAL LIABILITIES AND EQUITY	26,250.4	25,975.9
Evergy Metro
CURRENT ASSETS:
Cash and cash equivalents	110.6	2
Receivables, net of allowance for credit losses of $9.0 and $4.6, respectively	101.5	48.1
Related party receivables	95.9	93.9
Accounts receivable pledged as collateral	103	118
Fuel inventory and supplies	181.4	163
Income taxes receivable	7.1	8.7
Regulatory assets	92.4	95.4
Prepaid expenses	27.8	22.8
Other assets	13.5	15
Total Current Assets	733.2	566.9
PROPERTY, PLANT AND EQUIPMENT, NET	6,852.3	6,839
OTHER ASSETS:
Regulatory assets	464.1	464.4
Nuclear decommissioning trust fund	294.2	300.7
Other	131.5	134.1
Total Other Assets	889.8	899.2
TOTAL ASSETS	8,475.3	8,305.1
CURRENT LIABILITIES:
Notes payable and commercial paper	30	199.3
Collateralized note payable	103	118
Accounts payable	147.1	233.6
Related party payables	12.5	4.6
Accrued taxes	65.3	38.8
Accrued interest	27.1	26.7
Regulatory liabilities	9.3	11.4
Asset retirement obligations	32.2	36.1
Accrued compensation and benefits	34.7	45.1
Other	30.4	34
Total Current Liabilities	491.6	747.6
LONG-TERM LIABILITIES:
Long-term debt, net	2,922.3	2,525
Deferred income taxes	520.4	642.8
Unamortized investment tax credits	119	119.6
Regulatory liabilities	884.4	792.2
Pension and post-retirement liability	516.4	499.7
Asset retirement obligations	225.2	217.5
Other	166.7	180
Total Long-Term Liabilities	5,354.4	4,976.8
Commitments and Contingencies (Note 10)
EQUITY:
Common stock	1,563.1	1,563.1
Retained earnings	1,061.3	1,012.8
Accumulated other comprehensive loss	4.9	4.8
Total Evergy, Inc. Shareholders' Equity	2,629.3	2,580.7
TOTAL LIABILITIES AND EQUITY	$ 8,475.3	$ 8,305.1

Consolidated Balance Sheets -_4

Consolidated Balance Sheets - Evergy Metro, Inc (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Allowance for credit losses	$ 18	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,825,105	226,641,443
Evergy Metro
Allowance for credit losses	$ 9	$ 4.6
Common stock - shares authorized (in shares)	1,000	1,000
Common stock - shares issued (in shares)	1	1

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income - Evergy Metro, Inc - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
OPERATING REVENUES	$ 1,184.7	$ 1,221.7	$ 2,301.4	$ 2,438.6
OPERATING EXPENSES:
Fuel and purchased power	258.1	291.6	516.3	621.6
Operating and maintenance	272.7	288.6	560.9	595.5
Depreciation and amortization	221.6	215.4	440.1	429
Taxes other than income tax	90.9	91.6	183.2	184.9
Total Operating Expenses	913	950	1,832.2	1,957.3
INCOME FROM OPERATIONS	271.7	271.7	469.2	481.3
OTHER INCOME (EXPENSE):
Investment earnings	3.1	2.6	2.3	5.8
Other income	7.6	6.1	9.9	14.3
Other expense	(14.9)	(18.1)	(37.6)	(37.5)
Total Other Expense, Net	(4.2)	(9.4)	(25.4)	(17.4)
Interest expense	99.5	95.4	195.7	186.5
INCOME BEFORE INCOME TAXES	168	166.9	248.1	277.4
Income tax expense (benefit)	33.7	24.4	43.8	33.7
Net income attributable to Evergy, Inc.	133.4	139.7	202.8	239.2
Derivative hedging activity
Reclassification to expenses, net of tax	(1)	0	0.3	0
Derivative hedging activity, net of tax	(1)	(15.8)	0.3	(26)
Total other comprehensive income (loss)	(1.1)	(15.8)	0.2	(26)
COMPREHENSIVE INCOME	132.3	123.9	203	213.2
Evergy Metro
OPERATING REVENUES	424.3	437	799.8	862.4
OPERATING EXPENSES:
Fuel and purchased power	101.3	116.2	193.8	251.1
Operating and maintenance	98.5	108	204.4	230
Depreciation and amortization	82.8	79.9	164.2	158.8
Taxes other than income tax	29.2	31	61.2	63.7
Total Operating Expenses	311.8	335.1	623.6	703.6
INCOME FROM OPERATIONS	112.5	101.9	176.2	158.8
OTHER INCOME (EXPENSE):
Investment earnings	0.3	0.6	0.8	1.4
Other income	1.1	0.3	1.1	1.1
Other expense	(5.9)	(5.8)	(13.3)	(10.8)
Total Other Expense, Net	(4.5)	(4.9)	(11.4)	(8.3)
Interest expense	27.7	29.6	56.3	63.4
INCOME BEFORE INCOME TAXES	80.3	67.4	108.5	87.1
Income tax expense (benefit)	(22.6)	8	(20)	11.7
Net income attributable to Evergy, Inc.	102.9	59.4	128.5	75.4
Derivative hedging activity
Reclassification to expenses, net of tax	0.2	(0.1)	0.1	0.8
Derivative hedging activity, net of tax	0.2	(0.1)	0.1	0.8
Total other comprehensive income (loss)	0.2	(0.1)	0.1	0.8
COMPREHENSIVE INCOME	$ 103.1	$ 59.3	$ 128.6	$ 76.2

Consolidated Statements of Ca_3

Consolidated Statements of Cash Flows - Evergy Metro, Inc - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 208.5	$ 248
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	440.1	429
Amortization of nuclear fuel	29	29.4
Amortization of deferred refueling outage	12.8	12.9
Net deferred income taxes and credits	69.7	13.9
Allowance for equity funds used during construction	(4.6)	(0.4)
Payments for asset retirement obligations	(4)	(9.9)
Other	0.5	(2.4)
Changes in working capital items:
Accounts receivable	(115.4)	(78.3)
Accounts receivable pledged as collateral	42	53
Fuel inventory and supplies	(38.4)	22.5
Prepaid expenses and other current assets	13.9	36.2
Accounts payable	(123.6)	(136)
Accrued taxes	27.9	99.9
Other current liabilities	(84.4)	(121.1)
Changes in other assets	66	41.1
Changes in other liabilities	(24.2)	(4)
Cash Flows from Operating Activities	522.5	633.7
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(635.6)	(572.4)
Purchase of securities - trusts	(36.9)	(27)
Sale of securities - trusts	30.3	24.5
Other investing activities	(1.5)	(6)
Cash Flows used in Investing Activities	(601.2)	(529.5)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(94.9)	1,500.5
Collateralized short-term debt, net	(42)	(53)
Proceeds from long-term debt	889.5	493.3
Repayments of Long-term Debt	(251.1)	(701.1)
Cash dividends paid	(229)	(235.6)
Other financing activities	(10.8)	(7.3)
Cash Flows from (used in) Financing Activities	231.7	(157.5)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	153	(53.3)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	176.2	107
Evergy Metro
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	128.5	75.4
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	164.2	158.8
Amortization of nuclear fuel	14.5	14.8
Amortization of deferred refueling outage	6.4	6.5
Net deferred income taxes and credits	(21.5)	(28)
Allowance for equity funds used during construction	(0.7)	(0.3)
Payments for asset retirement obligations	(1.4)	(1.4)
Other	(0.2)	0.5
Changes in working capital items:
Accounts receivable	(53.6)	(3.7)
Accounts receivable pledged as collateral	15	20
Fuel inventory and supplies	(18.4)	10.1
Prepaid expenses and other current assets	(4.6)	24.4
Accounts payable	(63.6)	(66.5)
Accrued taxes	28.1	50.8
Other current liabilities	(11.2)	(54.6)
Changes in other assets	24.9	24.9
Changes in other liabilities	5.2	17.8
Cash Flows from Operating Activities	211.6	249.5
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(235.7)	(208.6)
Purchase of securities - trusts	(25.1)	(17.5)
Sale of securities - trusts	20	13.4
Other investing activities	2.7	2.4
Cash Flows used in Investing Activities	(238.1)	(210.3)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(169.3)	49.8
Collateralized short-term debt, net	(15)	(20)
Proceeds from long-term debt	396.5	393.4
Repayments of Long-term Debt	0	(400)
Cash dividends paid	(80)	(65)
Other financing activities	2.9	3
Cash Flows from (used in) Financing Activities	135.1	(38.8)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	108.6	0.4
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	2	2.6
End of period	$ 110.6	$ 3

Consolidated Statements of Ch_4

Consolidated Statements of Changes in Equity - Evergy Metro, Inc - USD ($) $ in Millions	Total	Common Stock	Retained earnings	Evergy Metro	Evergy MetroCommon Stock	Evergy MetroRetained earnings	Evergy MetroAOCI - 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	$ 2,499.8	$ 1,563.1	$ 932.6	$ 4.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	103.4		99.5	16		16
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
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	2,499.8	$ 1,563.1	932.6	4.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	248			75.4
Derivative hedging activity, net of tax	(26)			0.8
Ending balance (in shares) at Jun. 30, 2019		235,465,848			1
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	2,511	$ 1,563.1	943	4.9
Beginning balance (in shares) at Mar. 31, 2019		244,838,786			1
Beginning balance at Mar. 31, 2019	9,391.7	$ 8,110.4	1,325.7	2,516.7	$ 1,563.1	948.6	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	144.6		139.7	59.4		59.4
Dividends declared on common stock	(115.8)		(115.8)	(65)		(65)
Derivative hedging activity, net of tax	(15.8)			(0.1)			(0.1)
Ending balance (in shares) at Jun. 30, 2019		235,465,848			1
Ending balance at Jun. 30, 2019	8,854.7	$ 7,563	1,349.1	2,511	$ 1,563.1	943	4.9
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)		(60)
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
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	208.5			128.5
Derivative hedging activity, net of tax	0.3			0.1
Ending balance (in shares) at Jun. 30, 2020		226,825,105			1
Ending balance at Jun. 30, 2020	8,526.9	$ 7,073.5	1,524.1	2,629.3	$ 1,563.1	1,061.3	4.9
Beginning balance (in shares) at Mar. 31, 2020		226,738,748			1
Beginning balance at Mar. 31, 2020	8,505.4	$ 7,072.2	1,505.7	2,546.2	$ 1,563.1	978.4	4.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	136.3		133.4	102.9		102.9
Dividends declared on common stock	(114.6)		(114.6)	(20)		(20)
Derivative hedging activity, net of tax	(1)			0.2			0.2
Ending balance (in shares) at Jun. 30, 2020		226,825,105			1
Ending balance at Jun. 30, 2020	$ 8,526.9	$ 7,073.5	$ 1,524.1	$ 2,629.3	$ 1,563.1	$ 1,061.3	$ 4.9

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	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. June 30 December 31 Evergy (millions) Fuel inventory $ 168.1 $ 146.4 Supplies 352.2 335.2 Fuel inventory and supplies $ 520.3 $ 481.6 Evergy Kansas Central Fuel inventory $ 87.4 $ 80.2 Supplies 194.0 186.2 Fuel inventory and supplies $ 281.4 $ 266.4 Evergy Metro Fuel inventory $ 58.6 $ 46.1 Supplies 122.8 116.9 Fuel inventory and supplies $ 181.4 $ 163.0 Property, Plant and Equipment The following tables summarize the property, plant and equipment of Evergy, Evergy Kansas Central and Evergy Metro. June 30, 2020 Evergy Evergy Kansas Central Evergy Metro (millions) Electric plant in service $ 28,246.6 $ 13,739.7 $ 10,930.9 Electric plant acquisition adjustment 724.3 724.3 — Accumulated depreciation (10,680.9 ) (5,127.0 ) (4,421.2 ) Plant in service, net 18,290.0 9,337.0 6,509.7 Construction work in progress 799.4 445.2 291.5 Nuclear fuel, net 101.5 50.4 51.1 Plant to be retired, net (a) 0.9 0.9 — Property, plant and equipment, net $ 19,191.8 $ 9,833.5 $ 6,852.3 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 June 30, 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 Year to Date 2020 2019 2020 2019 Evergy (millions) Non-service cost component of net benefit cost $ (13.8 ) $ (14.1 ) $ (30.0 ) $ (27.2 ) Other (1.1 ) (4.0 ) (7.6 ) (10.3 ) Other expense $ (14.9 ) $ (18.1 ) $ (37.6 ) $ (37.5 ) Evergy Kansas Central Non-service cost component of net benefit cost $ (4.4 ) $ (5.2 ) $ (10.0 ) $ (9.6 ) Other (1.3 ) (3.3 ) (7.2 ) (9.5 ) Other expense $ (5.7 ) $ (8.5 ) $ (17.2 ) $ (19.1 ) Evergy Metro Non-service cost component of net benefit cost $ (6.3 ) $ (5.2 ) $ (13.2 ) $ (10.3 ) Other 0.4 (0.6 ) (0.1 ) (0.5 ) Other expense $ (5.9 ) $ (5.8 ) $ (13.3 ) $ (10.8 ) 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 Year to Date 2020 2019 2020 2019 Income (millions, except per share amounts) Net income $ 136.3 $ 144.6 $ 208.5 $ 248.0 Less: Net income attributable to noncontrolling interests 2.9 4.9 5.7 8.8 Net income attributable to Evergy, Inc. $ 133.4 $ 139.7 $ 202.8 $ 239.2 Common Shares Outstanding Weighted average number of common shares outstanding - basic 227.2 243.2 227.1 248.0 Add: Effect of dilutive securities 0.4 0.2 0.5 0.2 Weighted average number of common shares outstanding - dilutive 227.6 243.4 227.6 248.2 Basic and Diluted EPS $ 0.59 $ 0.57 $ 0.89 $ 0.96 Anti-dilutive shares excluded from the computation of diluted EPS for the three months ended June 30, 2020 , were 295,802 RSUs with performance measures and 58,714 RSUs with only service requirements. Anti-dilutive shares excluded from the computation of diluted EPS year to date June 30, 2020 , were 295,802 RSUs with performance measures and 234 RSUs with only service requirements. There were no anti-dilutive securities excluded from the computation of diluted EPS for the three months ended and year to date June 30, 2019 . Dividends Declared In August 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 September 21, 2020 , to shareholders of record as of August 20, 2020 . Supplemental Cash Flow Information Evergy Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 185.3 $ 173.9 Interest of VIEs 0.6 1.0 Income taxes, net of refunds 0.2 (17.7 ) Right-of-use assets obtained in exchange for new operating lease liabilities 3.8 2.2 Non-cash investing transactions: Property, plant and equipment additions 113.2 93.1 Non-cash financing transactions: Issuance of stock for compensation and reinvested dividends 0.9 (0.3 ) Right-of-use assets obtained in exchange for new finance lease liabilities 3.5 2.3 Evergy Kansas Central Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 82.7 $ 76.9 Interest of VIEs 0.6 1.0 Income taxes, net of refunds 0.2 (10.4 ) Right-of-use assets obtained in exchange for new operating lease liabilities 3.5 — Non-cash investing transactions: Property, plant and equipment additions 46.3 24.2 Non-cash financing transactions: Right-of-use assets obtained in exchange for new finance lease liabilities 2.2 2.3 Evergy Metro Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 54.9 $ 64.6 Income taxes, net of refunds — 17.5 Right-of-use assets obtained in exchange for new operating lease liabilities 0.3 2.2 Non-cash investing transactions: Property, plant and equipment additions 46.4 64.5 Non-cash financing transactions: Right-of-use assets obtained in exchange for new finance lease liabilities 1.3 —

REVENUE

REVENUE	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
REVENUE	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 June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 476.7 $ 196.8 $ 183.6 Commercial 388.7 154.7 172.7 Industrial 139.3 86.8 32.9 Other retail 9.1 4.2 2.7 Total electric retail $ 1,013.8 $ 442.5 $ 391.9 Wholesale 47.3 44.6 0.2 Transmission 82.2 74.1 3.8 Industrial steam and other 2.8 (2.3 ) 1.5 Total revenue from contracts with customers $ 1,146.1 $ 558.9 $ 397.4 Other 38.6 11.9 26.9 Operating revenues $ 1,184.7 $ 570.8 $ 424.3 Year to Date June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 879.2 $ 364.6 $ 331.0 Commercial 773.4 305.8 344.8 Industrial 279.9 178.9 63.0 Other retail 19.7 8.9 6.2 Total electric retail $ 1,952.2 $ 858.2 $ 745.0 Wholesale 110.8 99.4 7.0 Transmission 157.8 142.3 6.9 Industrial steam and other 11.2 1.2 1.9 Total revenue from contracts with customers $ 2,232.0 $ 1,101.1 $ 760.8 Other 69.4 29.8 39.0 Operating revenues $ 2,301.4 $ 1,130.9 $ 799.8 Three Months Ended June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 431.6 $ 179.2 $ 162.1 Commercial 438.6 172.8 195.6 Industrial 156.6 98.8 36.2 Other retail 9.5 5.1 2.7 Total electric retail $ 1,036.3 $ 455.9 $ 396.6 Wholesale 72.3 53.5 13.1 Transmission 76.4 68.6 3.1 Industrial steam and other 9.4 1.2 0.3 Total revenue from contracts with customers $ 1,194.4 $ 579.2 $ 413.1 Other 27.3 6.3 23.9 Operating revenues $ 1,221.7 $ 585.5 $ 437.0 Year to Date June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 883.3 $ 371.5 $ 326.3 Commercial 852.1 337.1 379.4 Industrial 303.6 197.2 65.9 Other retail 19.3 10.2 5.3 Total electric retail $ 2,058.3 $ 916.0 $ 776.9 Wholesale 155.4 114.8 31.2 Transmission 153.1 137.8 6.2 Industrial steam and other 12.7 2.9 1.7 Total revenue from contracts with customers $ 2,379.5 $ 1,171.5 $ 816.0 Other 59.1 10.8 46.4 Operating revenues $ 2,438.6 $ 1,182.3 $ 862.4

RECEIVABLES

RECEIVABLES	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
RECEIVABLES	RECEIVABLES The Evergy Companies' receivables are detailed in the following table. June 30 December 31 Evergy (millions) Customer accounts receivable - billed $ 12.9 $ 7.2 Customer accounts receivable - unbilled 225.0 104.0 Other receivables 176.1 127.8 Allowance for credit losses (18.0 ) (10.5 ) Total $ 396.0 $ 228.5 Evergy Kansas Central Customer accounts receivable - billed $ — $ — Customer accounts receivable - unbilled 87.7 49.7 Other receivables 182.8 94.5 Allowance for credit losses (4.9 ) (3.8 ) Total $ 265.6 $ 140.4 Evergy Metro Customer accounts receivable - billed $ 5.2 $ 3.1 Customer accounts receivable - unbilled 91.2 26.5 Other receivables 14.1 23.1 Allowance for credit losses (9.0 ) (4.6 ) Total $ 101.5 $ 48.1 Evergy's, Evergy Kansas Central's and Evergy Metro's other receivables at June 30, 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. June 30 December 31 (millions) Evergy $ 76.2 $ 42.0 Evergy Kansas Central 72.8 37.7 Evergy Metro 0.5 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 June 30, 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. 2020 2019 Evergy (millions) Beginning balance January 1 $ 10.5 $ 9.2 Credit loss expense 11.6 10.6 Write-offs (10.9 ) (16.6 ) Recoveries of prior write-offs 6.8 6.0 Ending balance June 30 $ 18.0 $ 9.2 Evergy Kansas Central Beginning balance January 1 $ 3.8 $ 3.9 Credit loss expense 2.9 3.4 Write-offs (3.3 ) (5.3 ) Recoveries of prior write-offs 1.5 1.8 Ending balance June 30 $ 4.9 $ 3.8 Evergy Metro Beginning balance January 1 $ 4.6 $ 3.8 Credit loss expense 5.7 4.9 Write-offs (5.0 ) (7.7 ) Recoveries of prior write-offs 3.7 2.9 Ending balance June 30 $ 9.0 $ 3.9 Sale of Accounts Receivable Evergy Kansas Central, Evergy Metro and Evergy Missouri West sell an undivided percentage ownership interest in their retail electric accounts receivable to independent outside investors. These sales are accounted for as secured borrowings with accounts receivable pledged as collateral and a corresponding short-term collateralized note payable recognized on the balance sheets. The Evergy Companies' accounts receivable pledged as collateral and the corresponding short-term collateralized note payable are summarized in the following table. June 30 December 31 (millions) Evergy $ 297.0 $ 339.0 Evergy Kansas Central 146.0 171.0 Evergy Metro 103.0 118.0 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. Evergy Kansas Central, Evergy Metro and Evergy Missouri West expect to renew these agreements for at least one year.

RATE MATTERS AND REGULATION

RATE MATTERS AND REGULATION	6 Months Ended
	Jun. 30, 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 June 30, 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 joint request for an AAO with the KCC that would allow for the extraordinary costs and lost revenues incurred by the companies, net of any COVID-19-related savings, as a result of the COVID-19 pandemic to be considered for future recovery from customers as part of their next rate cases. In July 2020, the KCC granted Evergy Kansas Central's and Evergy Metro's request for an AAO as discussed above. As a result of the KCC's order, Evergy Kansas Central and Evergy Metro will record to a regulatory asset all net incremental costs incurred associated with the COVID-19 pandemic for consideration in their next rate cases, which are expected to be completed no later than the end of 2023. Additionally, the KCC order states that the KCC will also consider granting the recovery of Evergy Kansas Central's and Evergy Metro's lost revenues associated with the COVID-19 pandemic as part of their next rate cases. If granted, these lost revenues would be recognized prospectively as billed to customers in future rates. 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 $15.6 million as of June 30, 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 June 30, 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 joint request for an AAO with the MPSC that would allow for the extraordinary costs and lost revenues incurred by the companies, net of any COVID-19-related savings, as a result of the COVID-19 pandemic to be considered for future recovery from customers as part of their next rate cases. A decision by the MPSC regarding the AAO request is expected in the fourth quarter 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 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 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.

GOODWILL

GOODWILL	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL	GOODWILL Accounting rules require goodwill to be tested for impairment annually and when an event occurs indicating the possibility that an impairment exists. Evergy's impairment test for the $2,336.6 million of goodwill that was recorded as a result of the Great Plains Energy Incorporated (Great Plains Energy) and Evergy Kansas Central merger was conducted as of May 1, 2020 . The goodwill impairment test consists of comparing the fair value of a reporting unit to its carrying amount, including goodwill, to identify potential impairment. In the event that the carrying amount exceeds the fair value of the reporting unit, an impairment loss is recognized for the difference between the carrying amount of the reporting unit and its fair value. Evergy's consolidated operations are considered one reporting unit for assessment of impairment, as management assesses financial performance and allocates resources on a consolidated basis. The determination of fair value of the reporting unit consisted of two valuation techniques: an income approach consisting of a discounted cash flow analysis and a market approach consisting of a determination of reporting unit invested capital using a market multiple derived from the historical earnings before interest, income taxes, depreciation and amortization and market prices of the stock of peer companies. The results of the two techniques were evaluated and weighted to determine a point within the range that management considered representative of fair value for the reporting unit. The fair value of the reporting unit exceeded the carrying amount, including goodwill. As a result, there was no impairment of goodwill.

PENSION PLANS AND POST-RETIREME

PENSION PLANS AND POST-RETIREMENT BENEFITS	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
PENSION PLANS AND POST-RETIREMENT BENEFITS	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 June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 19.5 $ 6.8 $ 12.7 $ 0.7 $ 0.3 $ 0.4 Interest cost 24.5 11.7 12.4 2.3 1.2 1.1 Expected return on plan assets (26.7 ) (13.3 ) (13.9 ) (2.3 ) (1.6 ) (0.6 ) Prior service cost 0.5 0.4 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 11.3 8.5 11.3 — — (0.2 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 29.1 14.1 22.7 0.8 — 0.7 Regulatory adjustment 9.1 0.3 0.7 (1.0 ) (0.7 ) (0.1 ) Intercompany allocations — (1.7 ) (5.0 ) — — (0.2 ) Net periodic benefit costs (income) $ 38.2 $ 12.7 $ 18.4 $ (0.2 ) $ (0.7 ) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 39.1 $ 13.6 $ 25.5 $ 1.4 $ 0.6 $ 0.8 Interest cost 48.9 23.5 25.0 4.6 2.4 2.2 Expected return on plan assets (53.4 ) (26.6 ) (28.0 ) (4.6 ) (3.3 ) (1.3 ) Prior service cost 0.9 0.8 0.4 0.2 0.2 — Recognized net actuarial (gain)/loss 22.7 16.9 22.6 0.1 — (0.3 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 58.2 28.2 45.5 1.7 (0.1 ) 1.4 Regulatory adjustment 19.0 0.7 2.1 (1.9 ) (1.4 ) (0.1 ) Intercompany allocations — (1.7 ) (11.2 ) — — — Net periodic benefit costs (income) $ 77.2 $ 27.2 $ 36.4 $ (0.2 ) $ (1.5 ) $ 1.3 Pension Benefits Post-Retirement Benefits Three Months Ended June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 19.1 $ 7.2 $ 11.9 $ 0.7 $ 0.3 $ 0.4 Interest cost 27.4 13.5 13.9 2.7 1.4 1.3 Expected return on plan assets (26.8 ) (13.7 ) (12.3 ) (2.6 ) (1.6 ) (1.0 ) Prior service cost 0.5 0.4 0.3 0.1 0.1 — Recognized net actuarial (gain)/loss 6.8 6.4 12.3 (0.3 ) (0.2 ) (0.4 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 27.0 13.8 26.1 0.6 — 0.3 Regulatory adjustment 12.7 0.5 (0.6 ) (0.9 ) (0.7 ) 0.1 Intercompany allocations — — (7.1 ) — — — Net periodic benefit costs (income) $ 39.7 $ 14.3 $ 18.4 $ (0.3 ) $ (0.7 ) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 38.2 $ 14.5 $ 23.7 $ 1.3 $ 0.6 $ 0.7 Interest cost 54.9 26.9 28.0 5.3 2.8 2.5 Expected return on plan assets (53.9 ) (27.4 ) (24.6 ) (5.0 ) (3.3 ) (1.7 ) Prior service cost 1.0 0.8 0.5 0.2 0.2 — Recognized net actuarial (gain)/loss 13.7 12.8 24.5 (0.6 ) (0.3 ) (0.8 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 53.9 27.6 52.1 1.2 — 0.7 Regulatory adjustment 25.5 1.0 (1.2 ) (1.7 ) (1.5 ) 0.2 Intercompany allocations — — (14.0 ) — — (0.1 ) Net periodic benefit costs (income) $ 79.4 $ 28.6 $ 36.9 $ (0.5 ) $ (1.5 ) $ 0.8 The components of net periodic benefit costs other than the service cost component are included in other expense on the Evergy Companies' consolidated statements of income and comprehensive income. Year to date June 30, 2020 , Evergy, Evergy Kansas Central and Evergy Metro made pension contributions of $35.8 million , $29.0 million and $6.8 million , respectively. Evergy expects to make additional pension contributions of $96.9 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 $16.8 million is expected to be paid by Evergy Kansas Central and $80.1 million is expected to be paid by Evergy Metro. Year to date June 30, 2020 , Evergy, Evergy Kansas Central and Evergy Metro made post-retirement benefit contributions of $0.6 million , $0.3 million and $0.3 million , respectively. Evergy, Evergy Kansas Central and Evergy Metro expect to make additional contributions in 2020 of $3.1 million , $0.4 million and $2.7 million , respectively, to the post-retirement benefit plans.

SHORT-TERM BORROWINGS AND SHORT

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT	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 June 30, 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 June 30, 2020 and December 31, 2019 . Amounts Drawn Master Credit Facility Commercial Paper Letters of Credit Cash Borrowings Available Borrowings Weighted Average Interest Rate on Short-Term Borrowings June 30, 2020 (millions) Evergy, Inc. $ 450.0 n/a $ 0.7 $ 55.0 $ 394.3 1.47% Evergy Kansas Central 1,000.0 215.0 27.1 — 757.9 0.34% Evergy Metro 600.0 30.0 — — 570.0 0.39% Evergy Missouri West 450.0 167.0 2.0 — 281.0 0.46% Evergy $ 2,500.0 $ 412.0 $ 29.8 $ 55.0 $ 2,003.2 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

LONG-TERM DEBT	6 Months Ended
	Jun. 30, 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 were used to redeem the $250.0 million of 5.10% FMBs in May 2020 and for general corporate purposes. In May 2020, Evergy Metro issued, at a discount, $400.0 million of 2.25% Mortgage Bonds, maturing in 2030. The proceeds from the issuance of Evergy Metro's $400.0 million of 2.25% Mortgage Bonds were used to repay a portion of Evergy Metro's borrowings under the master credit facility and for general corporate purposes.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	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 June 30, 2020 , $1.8 million and ($2.8) million were reclassified from accumulated other comprehensive loss to interest expense and income tax expense, respectively, on Evergy's consolidated statements of comprehensive income. Year to date June 30, 2020 , $3.5 million and ($3.2) 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 June 30, 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. June 30, 2020 December 31, 2019 Book Value Fair Value Book Value Fair Value Long-term debt (a) (millions) Evergy (b) $ 9,632.0 $ 11,034.5 $ 8,997.8 $ 9,750.2 Evergy Kansas Central 3,930.4 4,650.3 3,686.1 4,078.8 Evergy Metro 2,922.3 3,522.4 2,525.0 2,932.2 Long-term debt of variable interest entities (a) Evergy $ 18.8 $ 19.2 $ 51.1 $ 51.5 Evergy Kansas Central 18.8 19.2 51.1 51.5 (a) Includes current maturities. (b) Book value as of June 30, 2020 and December 31, 2019 , includes $117.9 million and $125.5 million , respectively, of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Evergy Kansas Central merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument. Recurring Fair Value Measurements The following tables include the Evergy Companies' balances of financial assets and liabilities measured at fair value on a recurring basis. Description June 30, 2020 Level 1 Level 2 Level 3 NAV Evergy Kansas Central (millions) Assets Nuclear decommissioning trust (a) Domestic equity funds $ 85.2 $ 77.7 $ — $ — $ 7.5 International equity funds 51.2 51.2 — — — Core bond fund 39.7 39.7 — — — High-yield bond fund 20.6 20.6 — — — Emerging markets bond fund 18.5 18.5 — — — Combination debt/equity/other fund 16.9 16.9 — — — Alternative investments fund 17.4 — — — 17.4 Real estate securities fund 12.9 — — — 12.9 Cash equivalents 0.8 0.8 — — — Total nuclear decommissioning trust 263.2 225.4 — — 37.8 Rabbi trust Core bond fund 25.0 — — — 25.0 Combination debt/equity/other fund 6.4 — — — 6.4 Cash equivalents 0.1 0.1 — — — Total rabbi trust 31.5 0.1 — — 31.4 Total $ 294.7 $ 225.5 $ — $ — $ 69.2 Evergy Metro Assets Nuclear decommissioning trust (a) Equity securities $ 196.5 $ 196.5 $ — $ — $ — Debt securities U.S. Treasury 50.8 50.8 — — — U.S. Agency 0.5 — 0.5 — — State and local obligations 3.1 — 3.1 — — Corporate bonds 40.7 — 40.7 — — Foreign governments 0.1 — 0.1 — — Cash equivalents 1.8 1.8 — — — Other 0.7 — 0.7 — — Total nuclear decommissioning trust 294.2 249.1 45.1 — — Self-insured health plan trust (b) Equity securities 0.5 0.5 — — — Debt securities 8.8 3.2 5.6 — — Cash and cash equivalents 1.5 1.5 — — — Total self-insured health plan trust 10.8 5.2 5.6 — — Total $ 305.0 $ 254.3 $ 50.7 $ — $ — Other Evergy Assets Rabbi trusts Fixed income fund $ 13.0 $ — $ — $ — $ 13.0 Cash and cash equivalents 0.6 0.6 — — — Total rabbi trusts $ 13.6 $ 0.6 $ — $ — $ 13.0 Evergy Assets Nuclear decommissioning trust (a) $ 557.4 $ 474.5 $ 45.1 $ — $ 37.8 Rabbi trusts 45.1 0.7 — — 44.4 Self-insured health plan trust (b) 10.8 5.2 5.6 — — Total $ 613.3 $ 480.4 $ 50.7 $ — $ 82.2 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. June 30, 2020 December 31, 2019 June 30, 2020 Fair Unfunded Fair Unfunded Redemption Length of Value Commitments Value Commitments Frequency Settlement Evergy Kansas Central (millions) Nuclear decommissioning trust: Domestic equity funds $ 7.5 $ 2.6 $ 7.5 $ 3.3 (a) (a) Alternative investments fund (b) 17.4 — 23.9 — Quarterly 65 days Real estate securities fund (b) 12.9 — 12.6 — Quarterly 65 days Total $ 37.8 $ 2.6 $ 44.0 $ 3.3 Rabbi trust: Core bond fund $ 25.0 $ — $ 25.3 $ — (c) (c) Combination debt/equity/other fund 6.4 — 6.3 — (c) (c) Total $ 31.4 $ — $ 31.6 $ — Other Evergy Rabbi trust: Fixed income fund $ 13.0 $ — $ 13.3 $ — (c) (c) Total Evergy investments at NAV $ 82.2 $ 2.6 $ 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 funds 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 Year to Date 2020 2019 2020 2019 Evergy (millions) Nuclear decommissioning trust - equity securities $ 53.3 $ 13.3 $ (36.0 ) $ 51.2 Nuclear decommissioning trust - debt securities 2.3 2.3 5.3 4.4 Rabbi trusts - equity securities 2.8 1.0 0.8 1.5 Total $ 58.4 $ 16.6 $ (29.9 ) $ 57.1 Evergy Kansas Central Nuclear decommissioning trust - equity securities $ 22.1 $ 8.8 $ (16.0 ) $ 26.0 Rabbi trust - equity securities 2.6 0.9 0.5 2.2 Total $ 24.7 $ 9.7 $ (15.5 ) $ 28.2 Evergy Metro Nuclear decommissioning trust - equity securities $ 31.2 $ 4.5 $ (20.0 ) $ 25.2 Nuclear decommissioning trust - debt securities 2.3 2.3 5.3 4.4 Total $ 33.5 $ 6.8 $ (14.7 ) $ 29.6

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Jun. 30, 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 (CO 2 ) and other gases referred to as greenhouse gases (GHG). Various regulations under the federal Clean Air Act Amendments of 1990 (CAA) limit CO 2 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 discharge of 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 and the ruling and resulting actions of the Corps could have a material impact on the Evergy Companies' operations and consolidated financial results. In May 2020, the District Court of Montana amended the previous ruling such that the vacatur only applies to new oil and gas pipelines and that NWP 12 remains in place for non-pipeline activities, which would include activities performed by the Evergy Companies. The Corps followed that action with a request to the U.S. Supreme Court (Supreme Court) to stay the District Court of Montana's order. In July 2020, the Supreme Court granted in part and denied in part the Corps' request to stay. The Supreme Court ruled that the request was granted and the order stayed except as it applies to the Keystone XL pipeline. As such, the original NWP 12 ruling would no longer apply to the Evergy Companies' activities and it is not believed that the ruling will have a material impact on the Evergy Companies’ operations and consolidated financial results. 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 in response to a prior court ruling requiring the EPA to address un-lined surface impoundment closure requirements. In July 2020, the EPA issued a pre-publication version of the Part A CCR Rule. This proposal reclassified clay-lined surface impoundments from "lined" to "un-lined" and established a deadline of April 11, 2021 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 the unlined impoundments 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 the Part A and Part B CCR 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

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS AND RELATIONSHIPS	RELATED PARTY TRANSACTIONS AND RELATIONSHIPS 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 June 30 Year to Date June 30 2020 2019 2020 2019 (millions) Evergy Metro billings to Evergy Missouri West $ 36.0 $ 42.2 $ 75.3 $ 84.2 Evergy Kansas Central billings to Evergy Missouri West 10.0 6.4 14.3 12.7 Evergy Metro billings to Evergy Kansas Central 19.5 44.3 67.6 75.8 Evergy Kansas Central billings to Evergy Metro 4.5 8.9 19.5 16.3 Money Pool Evergy Metro and Evergy Missouri West are authorized to participate in the Evergy, Inc. money pool, which is an internal financing arrangement in which funds may be lent on a short-term basis to Evergy Metro and Evergy Missouri West from Evergy, Inc. and between Evergy Metro and Evergy Missouri West. At June 30, 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. June 30 December 31 2020 2019 Evergy Kansas Central (millions) Net receivable from Evergy Missouri West $ 3.0 $ 3.1 Net payable to Evergy Metro (5.9 ) (14.9 ) Net receivable from Evergy 0.6 6.9 Evergy Metro Net receivable from Evergy Missouri West $ 62.8 $ 78.7 Net receivable from Evergy Kansas Central 5.9 14.9 Net receivable from (payable to) Evergy 14.7 (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 June 30, 2020 and December 31, 2019 , Evergy Kansas Central had income taxes receivable from Evergy of $26.6 million and $37.9 million , respectively. As of June 30, 2020 and December 31, 2019 , Evergy Metro had income taxes receivable from Evergy of $7.1 million and payable to Evergy of $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 June 30, 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

TAXES

TAXES	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
TAXES	TAXES Components of income tax expense are detailed in the following tables. Evergy Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (21.0 ) $ 8.7 $ (18.6 ) $ 20.6 State (6.9 ) (0.2 ) (7.3 ) (0.8 ) Total (27.9 ) 8.5 (25.9 ) 19.8 Deferred income taxes Federal 30.8 9.8 36.8 2.5 State 33.4 7.2 36.2 13.5 Total 64.2 17.0 73.0 16.0 Investment tax credit amortization (2.6 ) (1.1 ) (3.3 ) (2.1 ) Income tax expense $ 33.7 $ 24.4 $ 43.8 $ 33.7 Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (12.1 ) $ 17.5 $ 12.1 $ 27.9 State (6.5 ) (1.6 ) (6.9 ) (1.2 ) Total (18.6 ) 15.9 5.2 26.7 Deferred income taxes Federal (10.4 ) (10.7 ) (28.6 ) (13.9 ) State 150.2 5.5 152.8 9.1 Total 139.8 (5.2 ) 124.2 (4.8 ) Investment tax credit amortization (2.3 ) (0.8 ) (2.7 ) (1.5 ) Income tax expense $ 118.9 $ 9.9 $ 126.7 $ 20.4 Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (11.1 ) $ 26.4 $ 0.5 $ 34.3 State (0.2 ) 4.6 1.0 5.4 Total (11.3 ) 31.0 1.5 39.7 Deferred income taxes Federal 26.2 (19.7 ) 16.7 (24.9 ) State (37.3 ) (3.0 ) (37.7 ) (2.6 ) Total (11.1 ) (22.7 ) (21.0 ) (27.5 ) Investment tax credit amortization (0.2 ) (0.3 ) (0.5 ) (0.5 ) Income tax expense (benefit) $ (22.6 ) $ 8.0 $ (20.0 ) $ 11.7 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 Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (1.6 ) (1.8 ) (1.6 ) (1.8 ) State income taxes 3.6 2.9 3.2 3.6 Flow through depreciation for plant-related differences (5.0 ) (2.7 ) (4.7 ) (3.4 ) Federal tax credits (4.6 ) (4.0 ) (4.6 ) (3.9 ) Non-controlling interest (0.3 ) (0.5 ) (0.3 ) (0.4 ) AFUDC equity (0.7 ) (0.1 ) (0.6 ) — Amortization of federal investment tax credits (0.5 ) (0.5 ) (0.5 ) (0.5 ) State tax rate change 8.1 — 5.5 — Valuation allowance — — — (2.8 ) Stock compensation (0.4 ) (0.3 ) (0.2 ) (0.1 ) Officer compensation limitation 0.2 0.1 0.2 0.1 Other — 0.4 — 0.2 Effective income tax rate 19.8 % 14.5 % 17.4 % 12.0 % Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (3.0 ) (3.3 ) (3.0 ) (3.3 ) State income taxes 4.4 3.0 3.6 4.0 Flow through depreciation for plant-related differences 0.1 0.3 — 0.1 Federal tax credits (6.9 ) (6.1 ) (6.8 ) (6.1 ) Non-controlling interest (0.6 ) (1.0 ) (0.6 ) (0.8 ) AFUDC equity (1.6 ) (0.1 ) (1.1 ) (0.1 ) Amortization of federal investment tax credits (0.7 ) (0.7 ) (0.7 ) (0.7 ) State tax rate change 134.0 — 75.6 — Valuation allowance — — — (1.0 ) Stock compensation (0.5 ) (0.5 ) (0.3 ) (0.3 ) Other — 0.3 0.1 0.3 Effective income tax rate 146.2 % 12.9 % 87.8 % 13.1 % Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (0.3 ) (0.1 ) (0.2 ) (0.1 ) State income taxes 3.3 1.8 3.0 2.5 Flow through depreciation for plant-related differences (9.5 ) (5.7 ) (9.0 ) (6.0 ) Federal tax credits (2.4 ) (1.5 ) (2.4 ) (1.5 ) AFUDC equity 0.1 — — — Amortization of federal investment tax credits (0.4 ) (0.3 ) (0.4 ) (0.3 ) State tax rate change (40.1 ) — (29.7 ) — Stock compensation (0.3 ) (0.2 ) (1.1 ) 0.1 Officer compensation limitation 0.6 0.3 0.4 0.3 Other (0.1 ) (3.3 ) — (2.5 ) Effective income tax rate (28.1 )% 12.0 % (18.4 )% 13.5 % Tax Reform In May 2020, the Kansas Legislature passed and Governor Laura Kelly signed House Bill 2585 (HB 2585), which exempts certain public utilities, including Evergy Kansas Central and Evergy Metro, from Kansas corporate income tax beginning in 2021 and allows the KCC to approve changes in rates related to increases or decreases in federal or state income tax rates. As a result of the exemption from Kansas corporate income tax, the Evergy Companies revalued their deferred income tax assets and liabilities in May 2020. Evergy decreased its net deferred income tax liabilities by $233.8 million , primarily consisting of a $400.4 million adjustment for the revaluation of deferred income tax assets and liabilities included in rate base and a $31.7 million tax gross-up adjustment on this amount for ratemaking purposes and $13.8 million of income tax expense primarily related to the revaluation of deferred income taxes that will not be recovered from customers in future rates; partially offset by a decrease to unamortized investment tax credits of $183.6 million due to the revaluation of certain Kansas income tax credits and a $16.9 million tax gross-up adjustment on this amount for ratemaking purposes. Evergy Kansas Central decreased its net deferred income tax liabilities by $17.6 million , primarily consisting of a $293.7 million adjustment for the revaluation of deferred income tax assets and liabilities included in rate base and a $17.3 million tax gross-up adjustment on this amount for ratemaking purposes; partially offset by a decrease to unamortized investment tax credits of $183.6 million due to the revaluation of certain Kansas income tax credits and a $16.9 million tax gross-up adjustment on this amount for ratemaking purposes and $109.0 million of income tax expense primarily related to the revaluation of deferred income taxes that will not be recovered from customers in future rates. Evergy Metro decreased its net deferred income tax liabilities by $152.9 million , primarily consisting of a $106.7 million adjustment for the revaluation of deferred income tax assets and liabilities included in rate base and a $14.4 million tax gross-up adjustment on this amount for ratemaking purposes and $32.2 million of income tax benefit primarily related to the revaluation of deferred income taxes that will not be refunded to customers in future rates. The changes to the Evergy Companies' net deferred income tax liabilities included in rate base were offset by corresponding changes in regulatory liabilities. The net regulatory liabilities will be refunded to customers in future rates by amortizing the amounts related to plant assets over the remaining useful life of the assets, and amortizing the amounts related to other items over a period to be determined in a future rate case. The changes to the Evergy Companies' unamortized investment tax credits were related to the portion of certain Kansas income tax credits that are not expected to be used after December 31, 2020. The amounts of income tax expense (benefit) recognized by the Evergy Companies related to the revaluation of deferred income taxes that will not be recovered from or refunded to customers in future rates primarily pertain to deferred tax adjustments related to the difference between Evergy's consolidated tax rate and the statutory tax rates used for setting rates at Evergy Kansas Central, Evergy Metro and Evergy Missouri West as well as deferred income tax adjustments related to non-regulated operations. Evergy Kansas Central and Evergy Metro currently recover the cost of Kansas corporate income taxes in rates from their customers at the statutory rate of 7% that will be effective until 2021, when the income tax exemption established by HB 2585 takes effect. In accordance with the provisions of HB 2585, Evergy Metro and Evergy Kansas Central filed a joint application with the KCC in July 2020 to reduce their retail rates to reflect their exemption from Kansas corporate income taxes. In the joint application, Evergy Metro requested to implement its rate reduction in one phase, effective January 1, 2021, and Evergy Kansas Central requested to implement its rate reduction in three phases, effective January 1 in each of 2021, 2022 and 2023. A decision on the joint application from the KCC is expected in the fourth quarter of 2020.

ORGANIZATION AND BASIS OF PRE_2

ORGANIZATION AND BASIS OF PRESENTATION (Policies)	6 Months Ended
	Jun. 30, 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
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 PRE_3

ORGANIZATION AND BASIS OF PRESENTATION (Tables)	6 Months Ended
	Jun. 30, 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. June 30 December 31 Evergy (millions) Fuel inventory $ 168.1 $ 146.4 Supplies 352.2 335.2 Fuel inventory and supplies $ 520.3 $ 481.6 Evergy Kansas Central Fuel inventory $ 87.4 $ 80.2 Supplies 194.0 186.2 Fuel inventory and supplies $ 281.4 $ 266.4 Evergy Metro Fuel inventory $ 58.6 $ 46.1 Supplies 122.8 116.9 Fuel inventory and supplies $ 181.4 $ 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. June 30, 2020 Evergy Evergy Kansas Central Evergy Metro (millions) Electric plant in service $ 28,246.6 $ 13,739.7 $ 10,930.9 Electric plant acquisition adjustment 724.3 724.3 — Accumulated depreciation (10,680.9 ) (5,127.0 ) (4,421.2 ) Plant in service, net 18,290.0 9,337.0 6,509.7 Construction work in progress 799.4 445.2 291.5 Nuclear fuel, net 101.5 50.4 51.1 Plant to be retired, net (a) 0.9 0.9 — Property, plant and equipment, net $ 19,191.8 $ 9,833.5 $ 6,852.3 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 June 30, 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 Year to Date 2020 2019 2020 2019 Evergy (millions) Non-service cost component of net benefit cost $ (13.8 ) $ (14.1 ) $ (30.0 ) $ (27.2 ) Other (1.1 ) (4.0 ) (7.6 ) (10.3 ) Other expense $ (14.9 ) $ (18.1 ) $ (37.6 ) $ (37.5 ) Evergy Kansas Central Non-service cost component of net benefit cost $ (4.4 ) $ (5.2 ) $ (10.0 ) $ (9.6 ) Other (1.3 ) (3.3 ) (7.2 ) (9.5 ) Other expense $ (5.7 ) $ (8.5 ) $ (17.2 ) $ (19.1 ) Evergy Metro Non-service cost component of net benefit cost $ (6.3 ) $ (5.2 ) $ (13.2 ) $ (10.3 ) Other 0.4 (0.6 ) (0.1 ) (0.5 ) Other expense $ (5.9 ) $ (5.8 ) $ (13.3 ) $ (10.8 )
Schedule of Earnings Per Share, Basic and Diluted	The following table reconciles Evergy's basic and diluted EPS. Three Months Ended Year to Date 2020 2019 2020 2019 Income (millions, except per share amounts) Net income $ 136.3 $ 144.6 $ 208.5 $ 248.0 Less: Net income attributable to noncontrolling interests 2.9 4.9 5.7 8.8 Net income attributable to Evergy, Inc. $ 133.4 $ 139.7 $ 202.8 $ 239.2 Common Shares Outstanding Weighted average number of common shares outstanding - basic 227.2 243.2 227.1 248.0 Add: Effect of dilutive securities 0.4 0.2 0.5 0.2 Weighted average number of common shares outstanding - dilutive 227.6 243.4 227.6 248.2 Basic and Diluted EPS $ 0.59 $ 0.57 $ 0.89 $ 0.96
Supplemental Cash Flow Information	Supplemental Cash Flow Information Evergy Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 185.3 $ 173.9 Interest of VIEs 0.6 1.0 Income taxes, net of refunds 0.2 (17.7 ) Right-of-use assets obtained in exchange for new operating lease liabilities 3.8 2.2 Non-cash investing transactions: Property, plant and equipment additions 113.2 93.1 Non-cash financing transactions: Issuance of stock for compensation and reinvested dividends 0.9 (0.3 ) Right-of-use assets obtained in exchange for new finance lease liabilities 3.5 2.3 Evergy Kansas Central Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 82.7 $ 76.9 Interest of VIEs 0.6 1.0 Income taxes, net of refunds 0.2 (10.4 ) Right-of-use assets obtained in exchange for new operating lease liabilities 3.5 — Non-cash investing transactions: Property, plant and equipment additions 46.3 24.2 Non-cash financing transactions: Right-of-use assets obtained in exchange for new finance lease liabilities 2.2 2.3 Evergy Metro Year to Date June 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 54.9 $ 64.6 Income taxes, net of refunds — 17.5 Right-of-use assets obtained in exchange for new operating lease liabilities 0.3 2.2 Non-cash investing transactions: Property, plant and equipment additions 46.4 64.5 Non-cash financing transactions: Right-of-use assets obtained in exchange for new finance lease liabilities 1.3 —

REVENUE (Tables)

REVENUE (Tables)	6 Months Ended
	Jun. 30, 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 June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 476.7 $ 196.8 $ 183.6 Commercial 388.7 154.7 172.7 Industrial 139.3 86.8 32.9 Other retail 9.1 4.2 2.7 Total electric retail $ 1,013.8 $ 442.5 $ 391.9 Wholesale 47.3 44.6 0.2 Transmission 82.2 74.1 3.8 Industrial steam and other 2.8 (2.3 ) 1.5 Total revenue from contracts with customers $ 1,146.1 $ 558.9 $ 397.4 Other 38.6 11.9 26.9 Operating revenues $ 1,184.7 $ 570.8 $ 424.3 Year to Date June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 879.2 $ 364.6 $ 331.0 Commercial 773.4 305.8 344.8 Industrial 279.9 178.9 63.0 Other retail 19.7 8.9 6.2 Total electric retail $ 1,952.2 $ 858.2 $ 745.0 Wholesale 110.8 99.4 7.0 Transmission 157.8 142.3 6.9 Industrial steam and other 11.2 1.2 1.9 Total revenue from contracts with customers $ 2,232.0 $ 1,101.1 $ 760.8 Other 69.4 29.8 39.0 Operating revenues $ 2,301.4 $ 1,130.9 $ 799.8 Three Months Ended June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 431.6 $ 179.2 $ 162.1 Commercial 438.6 172.8 195.6 Industrial 156.6 98.8 36.2 Other retail 9.5 5.1 2.7 Total electric retail $ 1,036.3 $ 455.9 $ 396.6 Wholesale 72.3 53.5 13.1 Transmission 76.4 68.6 3.1 Industrial steam and other 9.4 1.2 0.3 Total revenue from contracts with customers $ 1,194.4 $ 579.2 $ 413.1 Other 27.3 6.3 23.9 Operating revenues $ 1,221.7 $ 585.5 $ 437.0 Year to Date June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 883.3 $ 371.5 $ 326.3 Commercial 852.1 337.1 379.4 Industrial 303.6 197.2 65.9 Other retail 19.3 10.2 5.3 Total electric retail $ 2,058.3 $ 916.0 $ 776.9 Wholesale 155.4 114.8 31.2 Transmission 153.1 137.8 6.2 Industrial steam and other 12.7 2.9 1.7 Total revenue from contracts with customers $ 2,379.5 $ 1,171.5 $ 816.0 Other 59.1 10.8 46.4 Operating revenues $ 2,438.6 $ 1,182.3 $ 862.4

RECEIVABLES (Tables)

RECEIVABLES (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Schedule of Receivables	The Evergy Companies' accounts receivable pledged as collateral and the corresponding short-term collateralized note payable are summarized in the following table. June 30 December 31 (millions) Evergy $ 297.0 $ 339.0 Evergy Kansas Central 146.0 171.0 Evergy Metro 103.0 118.0 June 30 December 31 (millions) Evergy $ 76.2 $ 42.0 Evergy Kansas Central 72.8 37.7 Evergy Metro 0.5 1.2 The Evergy Companies' receivables are detailed in the following table. June 30 December 31 Evergy (millions) Customer accounts receivable - billed $ 12.9 $ 7.2 Customer accounts receivable - unbilled 225.0 104.0 Other receivables 176.1 127.8 Allowance for credit losses (18.0 ) (10.5 ) Total $ 396.0 $ 228.5 Evergy Kansas Central Customer accounts receivable - billed $ — $ — Customer accounts receivable - unbilled 87.7 49.7 Other receivables 182.8 94.5 Allowance for credit losses (4.9 ) (3.8 ) Total $ 265.6 $ 140.4 Evergy Metro Customer accounts receivable - billed $ 5.2 $ 3.1 Customer accounts receivable - unbilled 91.2 26.5 Other receivables 14.1 23.1 Allowance for credit losses (9.0 ) (4.6 ) Total $ 101.5 $ 48.1
Summary of Bad Debt Expense	The change in the Evergy Companies' allowance for credit losses is summarized in the following table. 2020 2019 Evergy (millions) Beginning balance January 1 $ 10.5 $ 9.2 Credit loss expense 11.6 10.6 Write-offs (10.9 ) (16.6 ) Recoveries of prior write-offs 6.8 6.0 Ending balance June 30 $ 18.0 $ 9.2 Evergy Kansas Central Beginning balance January 1 $ 3.8 $ 3.9 Credit loss expense 2.9 3.4 Write-offs (3.3 ) (5.3 ) Recoveries of prior write-offs 1.5 1.8 Ending balance June 30 $ 4.9 $ 3.8 Evergy Metro Beginning balance January 1 $ 4.6 $ 3.8 Credit loss expense 5.7 4.9 Write-offs (5.0 ) (7.7 ) Recoveries of prior write-offs 3.7 2.9 Ending balance June 30 $ 9.0 $ 3.9

PENSION PLANS AND POST-RETIRE_2

PENSION PLANS AND POST-RETIREMENT BENEFITS (Tables)	6 Months Ended
	Jun. 30, 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 June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 19.5 $ 6.8 $ 12.7 $ 0.7 $ 0.3 $ 0.4 Interest cost 24.5 11.7 12.4 2.3 1.2 1.1 Expected return on plan assets (26.7 ) (13.3 ) (13.9 ) (2.3 ) (1.6 ) (0.6 ) Prior service cost 0.5 0.4 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 11.3 8.5 11.3 — — (0.2 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 29.1 14.1 22.7 0.8 — 0.7 Regulatory adjustment 9.1 0.3 0.7 (1.0 ) (0.7 ) (0.1 ) Intercompany allocations — (1.7 ) (5.0 ) — — (0.2 ) Net periodic benefit costs (income) $ 38.2 $ 12.7 $ 18.4 $ (0.2 ) $ (0.7 ) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date June 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 39.1 $ 13.6 $ 25.5 $ 1.4 $ 0.6 $ 0.8 Interest cost 48.9 23.5 25.0 4.6 2.4 2.2 Expected return on plan assets (53.4 ) (26.6 ) (28.0 ) (4.6 ) (3.3 ) (1.3 ) Prior service cost 0.9 0.8 0.4 0.2 0.2 — Recognized net actuarial (gain)/loss 22.7 16.9 22.6 0.1 — (0.3 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 58.2 28.2 45.5 1.7 (0.1 ) 1.4 Regulatory adjustment 19.0 0.7 2.1 (1.9 ) (1.4 ) (0.1 ) Intercompany allocations — (1.7 ) (11.2 ) — — — Net periodic benefit costs (income) $ 77.2 $ 27.2 $ 36.4 $ (0.2 ) $ (1.5 ) $ 1.3 Pension Benefits Post-Retirement Benefits Three Months Ended June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 19.1 $ 7.2 $ 11.9 $ 0.7 $ 0.3 $ 0.4 Interest cost 27.4 13.5 13.9 2.7 1.4 1.3 Expected return on plan assets (26.8 ) (13.7 ) (12.3 ) (2.6 ) (1.6 ) (1.0 ) Prior service cost 0.5 0.4 0.3 0.1 0.1 — Recognized net actuarial (gain)/loss 6.8 6.4 12.3 (0.3 ) (0.2 ) (0.4 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 27.0 13.8 26.1 0.6 — 0.3 Regulatory adjustment 12.7 0.5 (0.6 ) (0.9 ) (0.7 ) 0.1 Intercompany allocations — — (7.1 ) — — — Net periodic benefit costs (income) $ 39.7 $ 14.3 $ 18.4 $ (0.3 ) $ (0.7 ) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date June 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 38.2 $ 14.5 $ 23.7 $ 1.3 $ 0.6 $ 0.7 Interest cost 54.9 26.9 28.0 5.3 2.8 2.5 Expected return on plan assets (53.9 ) (27.4 ) (24.6 ) (5.0 ) (3.3 ) (1.7 ) Prior service cost 1.0 0.8 0.5 0.2 0.2 — Recognized net actuarial (gain)/loss 13.7 12.8 24.5 (0.6 ) (0.3 ) (0.8 ) Net periodic benefit costs before regulatory adjustment and intercompany allocations 53.9 27.6 52.1 1.2 — 0.7 Regulatory adjustment 25.5 1.0 (1.2 ) (1.7 ) (1.5 ) 0.2 Intercompany allocations — — (14.0 ) — — (0.1 ) Net periodic benefit costs (income) $ 79.4 $ 28.6 $ 36.9 $ (0.5 ) $ (1.5 ) $ 0.8

SHORT-TERM BORROWINGS AND SHO_2

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT (Tables)	6 Months Ended
	Jun. 30, 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 June 30, 2020 and December 31, 2019 . Amounts Drawn Master Credit Facility Commercial Paper Letters of Credit Cash Borrowings Available Borrowings Weighted Average Interest Rate on Short-Term Borrowings June 30, 2020 (millions) Evergy, Inc. $ 450.0 n/a $ 0.7 $ 55.0 $ 394.3 1.47% Evergy Kansas Central 1,000.0 215.0 27.1 — 757.9 0.34% Evergy Metro 600.0 30.0 — — 570.0 0.39% Evergy Missouri West 450.0 167.0 2.0 — 281.0 0.46% Evergy $ 2,500.0 $ 412.0 $ 29.8 $ 55.0 $ 2,003.2 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

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 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. June 30, 2020 December 31, 2019 Book Value Fair Value Book Value Fair Value Long-term debt (a) (millions) Evergy (b) $ 9,632.0 $ 11,034.5 $ 8,997.8 $ 9,750.2 Evergy Kansas Central 3,930.4 4,650.3 3,686.1 4,078.8 Evergy Metro 2,922.3 3,522.4 2,525.0 2,932.2 Long-term debt of variable interest entities (a) Evergy $ 18.8 $ 19.2 $ 51.1 $ 51.5 Evergy Kansas Central 18.8 19.2 51.1 51.5 (a) Includes current maturities. (b) Book value as of June 30, 2020 and December 31, 2019 , includes $117.9 million and $125.5 million , respectively, of fair value adjustments recorded in connection with purchase accounting for the Great Plains Energy and Evergy Kansas Central merger, which are not part of future principal payments and will amortize over the remaining life of the associated debt instrument.
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 June 30, 2020 Level 1 Level 2 Level 3 NAV Evergy Kansas Central (millions) Assets Nuclear decommissioning trust (a) Domestic equity funds $ 85.2 $ 77.7 $ — $ — $ 7.5 International equity funds 51.2 51.2 — — — Core bond fund 39.7 39.7 — — — High-yield bond fund 20.6 20.6 — — — Emerging markets bond fund 18.5 18.5 — — — Combination debt/equity/other fund 16.9 16.9 — — — Alternative investments fund 17.4 — — — 17.4 Real estate securities fund 12.9 — — — 12.9 Cash equivalents 0.8 0.8 — — — Total nuclear decommissioning trust 263.2 225.4 — — 37.8 Rabbi trust Core bond fund 25.0 — — — 25.0 Combination debt/equity/other fund 6.4 — — — 6.4 Cash equivalents 0.1 0.1 — — — Total rabbi trust 31.5 0.1 — — 31.4 Total $ 294.7 $ 225.5 $ — $ — $ 69.2 Evergy Metro Assets Nuclear decommissioning trust (a) Equity securities $ 196.5 $ 196.5 $ — $ — $ — Debt securities U.S. Treasury 50.8 50.8 — — — U.S. Agency 0.5 — 0.5 — — State and local obligations 3.1 — 3.1 — — Corporate bonds 40.7 — 40.7 — — Foreign governments 0.1 — 0.1 — — Cash equivalents 1.8 1.8 — — — Other 0.7 — 0.7 — — Total nuclear decommissioning trust 294.2 249.1 45.1 — — Self-insured health plan trust (b) Equity securities 0.5 0.5 — — — Debt securities 8.8 3.2 5.6 — — Cash and cash equivalents 1.5 1.5 — — — Total self-insured health plan trust 10.8 5.2 5.6 — — Total $ 305.0 $ 254.3 $ 50.7 $ — $ — Other Evergy Assets Rabbi trusts Fixed income fund $ 13.0 $ — $ — $ — $ 13.0 Cash and cash equivalents 0.6 0.6 — — — Total rabbi trusts $ 13.6 $ 0.6 $ — $ — $ 13.0 Evergy Assets Nuclear decommissioning trust (a) $ 557.4 $ 474.5 $ 45.1 $ — $ 37.8 Rabbi trusts 45.1 0.7 — — 44.4 Self-insured health plan trust (b) 10.8 5.2 5.6 — — Total $ 613.3 $ 480.4 $ 50.7 $ — $ 82.2 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. June 30, 2020 December 31, 2019 June 30, 2020 Fair Unfunded Fair Unfunded Redemption Length of Value Commitments Value Commitments Frequency Settlement Evergy Kansas Central (millions) Nuclear decommissioning trust: Domestic equity funds $ 7.5 $ 2.6 $ 7.5 $ 3.3 (a) (a) Alternative investments fund (b) 17.4 — 23.9 — Quarterly 65 days Real estate securities fund (b) 12.9 — 12.6 — Quarterly 65 days Total $ 37.8 $ 2.6 $ 44.0 $ 3.3 Rabbi trust: Core bond fund $ 25.0 $ — $ 25.3 $ — (c) (c) Combination debt/equity/other fund 6.4 — 6.3 — (c) (c) Total $ 31.4 $ — $ 31.6 $ — Other Evergy Rabbi trust: Fixed income fund $ 13.0 $ — $ 13.3 $ — (c) (c) Total Evergy investments at NAV $ 82.2 $ 2.6 $ 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 funds 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.
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 Year to Date 2020 2019 2020 2019 Evergy (millions) Nuclear decommissioning trust - equity securities $ 53.3 $ 13.3 $ (36.0 ) $ 51.2 Nuclear decommissioning trust - debt securities 2.3 2.3 5.3 4.4 Rabbi trusts - equity securities 2.8 1.0 0.8 1.5 Total $ 58.4 $ 16.6 $ (29.9 ) $ 57.1 Evergy Kansas Central Nuclear decommissioning trust - equity securities $ 22.1 $ 8.8 $ (16.0 ) $ 26.0 Rabbi trust - equity securities 2.6 0.9 0.5 2.2 Total $ 24.7 $ 9.7 $ (15.5 ) $ 28.2 Evergy Metro Nuclear decommissioning trust - equity securities $ 31.2 $ 4.5 $ (20.0 ) $ 25.2 Nuclear decommissioning trust - debt securities 2.3 2.3 5.3 4.4 Total $ 33.5 $ 6.8 $ (14.7 ) $ 29.6

RELATED PARTY TRANSACTIONS AN_2

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Tables)	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
Schedule of Related Party Receivables and Payables	The operating expenses and capital costs billed for jointly-owned plants and shared services are detailed in the following table. Three Months Ended June 30 Year to Date June 30 2020 2019 2020 2019 (millions) Evergy Metro billings to Evergy Missouri West $ 36.0 $ 42.2 $ 75.3 $ 84.2 Evergy Kansas Central billings to Evergy Missouri West 10.0 6.4 14.3 12.7 Evergy Metro billings to Evergy Kansas Central 19.5 44.3 67.6 75.8 Evergy Kansas Central billings to Evergy Metro 4.5 8.9 19.5 16.3 The following table summarizes Evergy Kansas Central's and Evergy Metro's related party net receivables and payables. June 30 December 31 2020 2019 Evergy Kansas Central (millions) Net receivable from Evergy Missouri West $ 3.0 $ 3.1 Net payable to Evergy Metro (5.9 ) (14.9 ) Net receivable from Evergy 0.6 6.9 Evergy Metro Net receivable from Evergy Missouri West $ 62.8 $ 78.7 Net receivable from Evergy Kansas Central 5.9 14.9 Net receivable from (payable to) Evergy 14.7 (4.3 )

TAXES (Tables)

TAXES (Tables)	6 Months Ended
	Jun. 30, 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 Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (21.0 ) $ 8.7 $ (18.6 ) $ 20.6 State (6.9 ) (0.2 ) (7.3 ) (0.8 ) Total (27.9 ) 8.5 (25.9 ) 19.8 Deferred income taxes Federal 30.8 9.8 36.8 2.5 State 33.4 7.2 36.2 13.5 Total 64.2 17.0 73.0 16.0 Investment tax credit amortization (2.6 ) (1.1 ) (3.3 ) (2.1 ) Income tax expense $ 33.7 $ 24.4 $ 43.8 $ 33.7 Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (12.1 ) $ 17.5 $ 12.1 $ 27.9 State (6.5 ) (1.6 ) (6.9 ) (1.2 ) Total (18.6 ) 15.9 5.2 26.7 Deferred income taxes Federal (10.4 ) (10.7 ) (28.6 ) (13.9 ) State 150.2 5.5 152.8 9.1 Total 139.8 (5.2 ) 124.2 (4.8 ) Investment tax credit amortization (2.3 ) (0.8 ) (2.7 ) (1.5 ) Income tax expense $ 118.9 $ 9.9 $ 126.7 $ 20.4 Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (11.1 ) $ 26.4 $ 0.5 $ 34.3 State (0.2 ) 4.6 1.0 5.4 Total (11.3 ) 31.0 1.5 39.7 Deferred income taxes Federal 26.2 (19.7 ) 16.7 (24.9 ) State (37.3 ) (3.0 ) (37.7 ) (2.6 ) Total (11.1 ) (22.7 ) (21.0 ) (27.5 ) Investment tax credit amortization (0.2 ) (0.3 ) (0.5 ) (0.5 ) Income tax expense (benefit) $ (22.6 ) $ 8.0 $ (20.0 ) $ 11.7
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 Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (1.6 ) (1.8 ) (1.6 ) (1.8 ) State income taxes 3.6 2.9 3.2 3.6 Flow through depreciation for plant-related differences (5.0 ) (2.7 ) (4.7 ) (3.4 ) Federal tax credits (4.6 ) (4.0 ) (4.6 ) (3.9 ) Non-controlling interest (0.3 ) (0.5 ) (0.3 ) (0.4 ) AFUDC equity (0.7 ) (0.1 ) (0.6 ) — Amortization of federal investment tax credits (0.5 ) (0.5 ) (0.5 ) (0.5 ) State tax rate change 8.1 — 5.5 — Valuation allowance — — — (2.8 ) Stock compensation (0.4 ) (0.3 ) (0.2 ) (0.1 ) Officer compensation limitation 0.2 0.1 0.2 0.1 Other — 0.4 — 0.2 Effective income tax rate 19.8 % 14.5 % 17.4 % 12.0 % Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (3.0 ) (3.3 ) (3.0 ) (3.3 ) State income taxes 4.4 3.0 3.6 4.0 Flow through depreciation for plant-related differences 0.1 0.3 — 0.1 Federal tax credits (6.9 ) (6.1 ) (6.8 ) (6.1 ) Non-controlling interest (0.6 ) (1.0 ) (0.6 ) (0.8 ) AFUDC equity (1.6 ) (0.1 ) (1.1 ) (0.1 ) Amortization of federal investment tax credits (0.7 ) (0.7 ) (0.7 ) (0.7 ) State tax rate change 134.0 — 75.6 — Valuation allowance — — — (1.0 ) Stock compensation (0.5 ) (0.5 ) (0.3 ) (0.3 ) Other — 0.3 0.1 0.3 Effective income tax rate 146.2 % 12.9 % 87.8 % 13.1 % Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Federal statutory income tax rate 21.0 % 21.0 % 21.0 % 21.0 % Effect of: COLI policies (0.3 ) (0.1 ) (0.2 ) (0.1 ) State income taxes 3.3 1.8 3.0 2.5 Flow through depreciation for plant-related differences (9.5 ) (5.7 ) (9.0 ) (6.0 ) Federal tax credits (2.4 ) (1.5 ) (2.4 ) (1.5 ) AFUDC equity 0.1 — — — Amortization of federal investment tax credits (0.4 ) (0.3 ) (0.4 ) (0.3 ) State tax rate change (40.1 ) — (29.7 ) — Stock compensation (0.3 ) (0.2 ) (1.1 ) 0.1 Officer compensation limitation 0.6 0.3 0.4 0.3 Other (0.1 ) (3.3 ) — (2.5 ) Effective income tax rate (28.1 )% 12.0 % (18.4 )% 13.5 %

ORGANIZATION AND BASIS OF PRE_4

ORGANIZATION AND BASIS OF PRESENTATION - Organization (Details) customer in Millions	6 Months Ended
	Jun. 30, 2020kilovolt_linesubsidiarysegmentcustomermiMW
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 PRE_5

ORGANIZATION AND BASIS OF PRESENTATION - Fuel Inventory and Supplies (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Inventory [Line Items]
Fuel inventory	$ 168.1	$ 146.4
Supplies	352.2	335.2
Fuel inventory and supplies	520.3	481.6
Evergy Kansas Central
Inventory [Line Items]
Fuel inventory	87.4	80.2
Supplies	194	186.2
Fuel inventory and supplies	281.4	266.4
Evergy Metro
Inventory [Line Items]
Fuel inventory	58.6	46.1
Supplies	122.8	116.9
Fuel inventory and supplies	$ 181.4	$ 163

ORGANIZATION AND BASIS OF PRE_6

ORGANIZATION AND BASIS OF PRESENTATION - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 19,191.8	$ 19,184.4
Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	28,246.6	27,768.8
Property, plant and equipment, adjustment	724.3	740.6
Accumulated depreciation	(10,680.9)	(10,293.7)
Property, plant and equipment, net	18,290	18,215.7
Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	799.4	839.2
Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	101.5	128.5
Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.9	1
Evergy Kansas Central
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	9,833.5	9,864.9
Evergy Kansas Central | Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,739.7	13,538.1
Property, plant and equipment, adjustment	724.3	740.6
Accumulated depreciation	(5,127)	(4,951.5)
Property, plant and equipment, net	9,337	9,327.2
Evergy Kansas Central | Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	445.2	472.8
Evergy Kansas Central | Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	50.4	63.9
Evergy Kansas Central | Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	0.9	1
Evergy Metro
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	6,852.3	6,839
Evergy Metro | Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,930.9	10,776.5
Property, plant and equipment, adjustment	0	0
Accumulated depreciation	(4,421.2)	(4,272)
Property, plant and equipment, net	6,509.7	6,504.5
Evergy Metro | Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	291.5	269.9
Evergy Metro | Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	51.1	64.6
Evergy Metro | Plant to be retired, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 0	$ 0

ORGANIZATION AND BASIS OF PRE_7

ORGANIZATION AND BASIS OF PRESENTATION - Other Income And Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Entity Information [Line Items]
Non-service cost component of net benefit cost	$ (13.8)	$ (14.1)	$ (30)	$ (27.2)
Other	(1.1)	(4)	(7.6)	(10.3)
Other expense	(14.9)	(18.1)	(37.6)	(37.5)
Evergy Kansas Central
Entity Information [Line Items]
Non-service cost component of net benefit cost	(4.4)	(5.2)	(10)	(9.6)
Other	(1.3)	(3.3)	(7.2)	(9.5)
Other expense	(5.7)	(8.5)	(17.2)	(19.1)
Evergy Metro
Entity Information [Line Items]
Non-service cost component of net benefit cost	(6.3)	(5.2)	(13.2)	(10.3)
Other	0.4	(0.6)	(0.1)	(0.5)
Other expense	$ (5.9)	$ (5.8)	$ (13.3)	$ (10.8)

ORGANIZATION AND BASIS OF PRE_8

ORGANIZATION AND BASIS OF PRESENTATION - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Income
Net income	$ 136.3	$ 72.2	$ 144.6	$ 103.4	$ 208.5	$ 248
Less: Net income attributable to noncontrolling interests	2.9		4.9		5.7	8.8
Net income attributable to Evergy, Inc.	$ 133.4		$ 139.7		$ 202.8	$ 239.2
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic (in shares)	227.2		243.2		227.1	248
Add: effect of dilutive securities (in shares)	0.4		0.2		0.5	0.2
Diluted average number of common shares outstanding (in shares)	227.6		243.4		227.6	248.2
Basic and diluted earnings per common share (in dollars per share)	$ 0.59		$ 0.57		$ 0.89	$ 0.96

ORGANIZATION AND BASIS OF PRE_9

ORGANIZATION AND BASIS OF PRESENTATION - Antidilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		0		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	295,802		295,802
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		234

ORGANIZATION AND BASIS OF PR_10

ORGANIZATION AND BASIS OF PRESENTATION - Dividends Declared (Details) - $ / shares	Aug. 05, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)		$ 0.505	$ 0.505	$ 0.475	$ 0.475
Common Stock | Subsequent Event
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)	$ 0.505

ORGANIZATION AND BASIS OF PR_11

ORGANIZATION AND BASIS OF PRESENTATION - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for (received from):
Interest, net of amount capitalized	$ 185.3	$ 173.9
Income taxes, net of refunds	0.2	(17.7)
Right-of-use assets obtained in exchange for new operating lease liabilities	3.8	2.2
Non-cash investing transactions:
Property, plant and equipment additions	113.2	93.1
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.9	(0.3)
Right-of-use assets obtained in exchange for new finance lease liabilities	3.5	2.3
Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.6	1
Evergy Kansas Central
Cash paid for (received from):
Interest, net of amount capitalized	82.7	76.9
Income taxes, net of refunds	0.2	(10.4)
Right-of-use assets obtained in exchange for new operating lease liabilities	3.5	0
Non-cash investing transactions:
Property, plant and equipment additions	46.3	24.2
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	2.2	2.3
Evergy Kansas Central | Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.6	1
Evergy Metro
Cash paid for (received from):
Interest, net of amount capitalized	54.9	64.6
Income taxes, net of refunds	0	17.5
Right-of-use assets obtained in exchange for new operating lease liabilities	0.3	2.2
Non-cash investing transactions:
Property, plant and equipment additions	46.4	64.5
Non-cash financing transactions:
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 1.3	$ 0

REVENUE (Details)

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,146.1	$ 1,194.4	$ 2,232	$ 2,379.5
Other	38.6	27.3	69.4	59.1
Operating revenues	1,184.7	1,221.7	2,301.4	2,438.6
Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	558.9	579.2	1,101.1	1,171.5
Other	11.9	6.3	29.8	10.8
Operating revenues	570.8	585.5	1,130.9	1,182.3
Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	397.4	413.1	760.8	816
Other	26.9	23.9	39	46.4
Operating revenues	424.3	437	799.8	862.4
Residential
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	476.7	431.6	879.2	883.3
Residential | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	196.8	179.2	364.6	371.5
Residential | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	183.6	162.1	331	326.3
Commercial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	388.7	438.6	773.4	852.1
Commercial | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	154.7	172.8	305.8	337.1
Commercial | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	172.7	195.6	344.8	379.4
Industrial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	139.3	156.6	279.9	303.6
Industrial | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	86.8	98.8	178.9	197.2
Industrial | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	32.9	36.2	63	65.9
Other retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	9.1	9.5	19.7	19.3
Other retail | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4.2	5.1	8.9	10.2
Other retail | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2.7	2.7	6.2	5.3
Total electric retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,013.8	1,036.3	1,952.2	2,058.3
Total electric retail | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	442.5	455.9	858.2	916
Total electric retail | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	391.9	396.6	745	776.9
Wholesale
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	47.3	72.3	110.8	155.4
Wholesale | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	44.6	53.5	99.4	114.8
Wholesale | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0.2	13.1	7	31.2
Transmission
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	82.2	76.4	157.8	153.1
Transmission | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	74.1	68.6	142.3	137.8
Transmission | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.8	3.1	6.9	6.2
Industrial steam and other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2.8	9.4	11.2	12.7
Industrial steam and other | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	(2.3)	1.2	1.2	2.9
Industrial steam and other | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1.5	$ 0.3	$ 1.9	$ 1.7

RECEIVABLES (Details)

RECEIVABLES (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 176.1	$ 127.8
Allowance for credit losses	(18)	(10.5)
Total	396	228.5
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	182.8	94.5
Allowance for credit losses	(4.9)	(3.8)
Total	265.6	140.4
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	14.1	23.1
Allowance for credit losses	(9)	(4.6)
Total	101.5	48.1
Customer accounts receivable | Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	12.9	7.2
Customer accounts receivable | Billed | Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	0	0
Customer accounts receivable | Billed | Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	5.2	3.1
Customer accounts receivable | Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	225	104
Customer accounts receivable | Unbilled | Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	87.7	49.7
Customer accounts receivable | Unbilled | Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	$ 91.2	$ 26.5

RECEIVABLES - Narrative (Detail

RECEIVABLES - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Entity Information [Line Items]
Other receivables, contracts with customers	$ 76.2	$ 42
Accounts receivable pledged as collateral	297	339
Evergy Kansas Central
Entity Information [Line Items]
Other receivables, contracts with customers	72.8	37.7
Accounts receivable pledged as collateral	146	171
Evergy Metro
Entity Information [Line Items]
Other receivables, contracts with customers	0.5	1.2
Accounts receivable pledged as collateral	103	$ 118
Maximum amount of outstanding principal under receivables agreement	130
Borrowings From Mid October Through Mid June | Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	185
Borrowing From Mid June Through Expiration | Evergy Kansas Central
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	200
Borrowing From Mid June Through Expiration | Evergy Missouri West Inc
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	65
Borrowings From Mid-November Through Mid-June | Evergy Missouri West Inc
Entity Information [Line Items]
Maximum amount of outstanding principal under receivables agreement	$ 50

RECEIVABLES - Allowance for Cre

RECEIVABLES - Allowance for Credit Loses (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	$ 10.5	$ 9.2
Credit loss expense	11.6	10.6
Write-offs	(10.9)	(16.6)
Recoveries of prior write-offs	6.8	6
Ending balance June 30	18	9.2
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	3.8	3.9
Credit loss expense	2.9	3.4
Write-offs	(3.3)	(5.3)
Recoveries of prior write-offs	1.5	1.8
Ending balance June 30	4.9	3.8
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	4.6	3.8
Credit loss expense	5.7	4.9
Write-offs	(5)	(7.7)
Recoveries of prior write-offs	3.7	2.9
Ending balance June 30	$ 9	$ 3.9

RECEIVABLES - Other Receivables

RECEIVABLES - Other Receivables (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 76.2	$ 42
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	72.8	37.7
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 0.5	$ 1.2

RECEIVABLES - Pledged as Collat

RECEIVABLES - Pledged as Collateral (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 297	$ 339
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	146	171
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 103	$ 118

RATE MATTERS AND REGULATION - N

RATE MATTERS AND REGULATION - Narrative (Details) $ in Millions	1 Months Ended		6 Months Ended
	May 31, 2020USD ($)	Apr. 30, 2020USD ($)	Jun. 30, 2020USD ($)
Transmission delivery charge | Evergy Kansas Central | Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease) approved		$ 3.5
Transmission delivery charge | Evergy Metro | Kansas Corporation Commission
Regulatory Proceedings [Line Items]
Annual revenue increase (decrease) approved	$ (2.7)
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
2018 MPSC OPC MECG Petition | Revenues Probable Of Refund
Regulatory Proceedings [Line Items]
Regulatory liabilities			$ 15.6

GOODWILL (Details)

GOODWILL (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)reporting_unit	Dec. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill | $	$ 2,336.6	$ 2,336.6
Number of reporting units | reporting_unit	1

PENSION PLANS AND POST-RETIRE_3

PENSION PLANS AND POST-RETIREMENT BENEFITS - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	$ 35.8
Contributions to plans remainder of year	96.9
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	0.6
Contributions to plans remainder of year	3.1
Evergy Kansas Central | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	29
Contributions to plans remainder of year	16.8
Evergy Kansas Central | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	0.3
Contributions to plans remainder of year	0.4
Evergy Metro | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	6.8
Contributions to plans remainder of year	80.1
Evergy Metro | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	0.3
Contributions to plans remainder of year	$ 2.7
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-RETIRE_4

PENSION PLANS AND POST-RETIREMENT BENEFITS - Schedule of Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 19.5	$ 19.1	$ 39.1	$ 38.2
Interest cost	24.5	27.4	48.9	54.9
Expected return on plan assets	(26.7)	(26.8)	(53.4)	(53.9)
Prior service cost	0.5	0.5	0.9	1
Recognized net actuarial (gain) loss	11.3	6.8	22.7	13.7
Net periodic benefit costs before regulatory adjustment and intercompany allocations	29.1	27	58.2	53.9
Regulatory adjustment	9.1	12.7	19	25.5
Intercompany allocations	0	0	0	0
Net periodic benefit costs	38.2	39.7	77.2	79.4
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.7	0.7	1.4	1.3
Interest cost	2.3	2.7	4.6	5.3
Expected return on plan assets	(2.3)	(2.6)	(4.6)	(5)
Prior service cost	0.1	0.1	0.2	0.2
Recognized net actuarial (gain) loss	0	(0.3)	0.1	(0.6)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.8	0.6	1.7	1.2
Regulatory adjustment	(1)	(0.9)	(1.9)	(1.7)
Intercompany allocations	0	0	0	0
Net periodic benefit costs	(0.2)	(0.3)	(0.2)	(0.5)
Evergy Kansas Central | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	6.8	7.2	13.6	14.5
Interest cost	11.7	13.5	23.5	26.9
Expected return on plan assets	(13.3)	(13.7)	(26.6)	(27.4)
Prior service cost	0.4	0.4	0.8	0.8
Recognized net actuarial (gain) loss	8.5	6.4	16.9	12.8
Net periodic benefit costs before regulatory adjustment and intercompany allocations	14.1	13.8	28.2	27.6
Regulatory adjustment	0.3	0.5	0.7	1
Intercompany allocations	(1.7)	0	(1.7)	0
Net periodic benefit costs	12.7	14.3	27.2	28.6
Evergy Kansas Central | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.3	0.3	0.6	0.6
Interest cost	1.2	1.4	2.4	2.8
Expected return on plan assets	(1.6)	(1.6)	(3.3)	(3.3)
Prior service cost	0.1	0.1	0.2	0.2
Recognized net actuarial (gain) loss	0	(0.2)	0	(0.3)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0	0	(0.1)	0
Regulatory adjustment	(0.7)	(0.7)	(1.4)	(1.5)
Intercompany allocations	0	0	0	0
Net periodic benefit costs	(0.7)	(0.7)	(1.5)	(1.5)
Evergy Metro | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	12.7	11.9	25.5	23.7
Interest cost	12.4	13.9	25	28
Expected return on plan assets	(13.9)	(12.3)	(28)	(24.6)
Prior service cost	0.2	0.3	0.4	0.5
Recognized net actuarial (gain) loss	11.3	12.3	22.6	24.5
Net periodic benefit costs before regulatory adjustment and intercompany allocations	22.7	26.1	45.5	52.1
Regulatory adjustment	0.7	(0.6)	2.1	(1.2)
Intercompany allocations	(5)	(7.1)	(11.2)	(14)
Net periodic benefit costs	18.4	18.4	36.4	36.9
Evergy Metro | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.4	0.4	0.8	0.7
Interest cost	1.1	1.3	2.2	2.5
Expected return on plan assets	(0.6)	(1)	(1.3)	(1.7)
Prior service cost	0	0	0	0
Recognized net actuarial (gain) loss	(0.2)	(0.4)	(0.3)	(0.8)
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.7	0.3	1.4	0.7
Regulatory adjustment	(0.1)	0.1	(0.1)	0.2
Intercompany allocations	(0.2)	0	0	(0.1)
Net periodic benefit costs	$ 0.4	$ 0.4	$ 1.3	$ 0.8

SHORT-TERM BORROWINGS AND SHO_3

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Narrative (Details) - Cash Borrowings	Jun. 30, 2020USD ($)
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity	$ 2,500,000,000
Debt instrument, debt default, threshold	$ 100,000,000
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
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
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
Debt Instrument, debt to capitalization ratio (no more than)	65.00%

SHORT-TERM BORROWINGS AND SHO_4

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Schedule of Short Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Master Credit Facility	$ 2,500	$ 2,500
Available Borrowings	2,003.2	1,921.1
Evergy, Inc.
Short-term Debt [Line Items]
Master Credit Facility	450	450
Available Borrowings	$ 394.3	$ 429.3
Weighted Average Interest Rate on Short-Term Borrowings	1.47%	2.99%
Evergy Kansas Central
Short-term Debt [Line Items]
Master Credit Facility	$ 1,000	$ 1,000
Available Borrowings	$ 757.9	$ 736.6
Weighted Average Interest Rate on Short-Term Borrowings	0.34%	2.07%
Evergy Metro
Short-term Debt [Line Items]
Master Credit Facility	$ 600	$ 600
Available Borrowings	$ 570	$ 400.7
Weighted Average Interest Rate on Short-Term Borrowings	0.39%	2.02%
Evergy Missouri West Inc
Short-term Debt [Line Items]
Master Credit Facility	$ 450	$ 450
Available Borrowings	$ 281	$ 354.5
Weighted Average Interest Rate on Short-Term Borrowings	0.46%	2.02%
Commercial Paper
Short-term Debt [Line Items]
Long-term line of credit	$ 412	$ 541.9
Commercial Paper | Evergy Kansas Central
Short-term Debt [Line Items]
Long-term line of credit	215	249.2
Commercial Paper | Evergy Metro
Short-term Debt [Line Items]
Long-term line of credit	30	199.3
Commercial Paper | Evergy Missouri West Inc
Short-term Debt [Line Items]
Long-term line of credit	167	93.4
Letters of Credit
Short-term Debt [Line Items]
Letters of Credit	29.8	17
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	27.1	14.2
Letters of Credit | Evergy Metro
Short-term Debt [Line Items]
Letters of Credit	0	0
Letters of Credit | Evergy Missouri West Inc
Short-term Debt [Line Items]
Letters of Credit	2	2.1
Cash Borrowings
Short-term Debt [Line Items]
Long-term line of credit	55	20
Cash Borrowings | Evergy, Inc.
Short-term Debt [Line Items]
Long-term line of credit	55	20
Cash Borrowings | Evergy Kansas Central
Short-term Debt [Line Items]
Long-term line of credit	0	0
Cash Borrowings | Evergy Metro
Short-term Debt [Line Items]
Long-term line of credit	0	0
Cash Borrowings | Evergy Missouri West Inc
Short-term Debt [Line Items]
Long-term line of credit	$ 0	$ 0

LONG-TERM DEBT - Narrative (Det

LONG-TERM DEBT - Narrative (Details) - Secured Debt - USD ($) $ in Millions	May 31, 2020	Apr. 30, 2020
Evergy Kansas Central | Mortgage Bonds Due 2050 EKC
Debt Instrument [Line Items]
Long-term debt gross		$ 500
Interest rate		3.45%
Evergy Kansas Central | Mortgage Bonds Due 2020 EKC
Debt Instrument [Line Items]
Long-term debt gross	$ 250	$ 250
Interest rate	5.10%	5.10%
Evergy Metro | Mortgage Bonds Due 2030 EM
Debt Instrument [Line Items]
Long-term debt gross	$ 400
Interest rate	2.25%

FAIR VALUE MEASUREMENTS - Narra

FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended		10 Months Ended
	Sep. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 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	$ 69.8
Notional amount	500					$ 500
Other comprehensive loss	69.8	$ 0	$ 21.2	$ 0	$ 35
Interest expense		99.5	95.4	195.7	186.5
Income tax expense (benefit)		33.7	$ 24.4	43.8	$ 33.7
Accumulated other comprehensive loss over the next twelve months		5.2		5.2
Senior Notes Due 2029 Evergy | Senior Notes
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt issued	$ 800					$ 800
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		1.8		3.5
Income tax expense (benefit)		$ (2.8)		$ (3.2)

FAIR VALUE MEASUREMENTS - Long-

FAIR VALUE MEASUREMENTS - Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 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	$ 9,632	$ 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	11,034.5	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	3,930.4	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	4,650.3	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	2,922.3	2,525
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	3,522.4	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	117.9	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	19.2	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	$ 19.2	$ 51.5

FAIR VALUE MEASUREMENTS - Recur

FAIR VALUE MEASUREMENTS - Recurring (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Assets
Total nuclear decommissioning trust	$ 557.4	$ 573.2
Total rabbi trust	45.1	45.5
Total self-insured health plan trust	10.8	9.9
Total Assets	613.3	628.6
Level 1
Assets
Total nuclear decommissioning trust	474.5	493
Total rabbi trust	0.7	0.6
Total self-insured health plan trust	5.2	4.6
Total Assets	480.4	498.2
Level 2
Assets
Total nuclear decommissioning trust	45.1	36.2
Total rabbi trust	0	0
Total self-insured health plan trust	5.6	5.3
Total Assets	50.7	41.5
Level 3
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Total self-insured health plan trust	0	0
Total Assets	0	0
NAV
Assets
Total nuclear decommissioning trust	37.8	44
Total rabbi trust	44.4	44.9
Total self-insured health plan trust	0	0
Total Assets	82.2	88.9
Evergy Kansas Central
Assets
Total nuclear decommissioning trust	263.2	272.5
Total rabbi trust	31.5	31.7
Total Assets	294.7	304.2
Evergy Kansas Central | Core bond fund
Assets
Total nuclear decommissioning trust	39.7	39.3
Total rabbi trust	25	25.3
Evergy Kansas Central | High-yield bond fund
Assets
Total nuclear decommissioning trust	20.6	22.3
Evergy Kansas Central | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.5	19.4
Evergy Kansas Central | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	16.9	16.4
Total rabbi trust	6.4	6.3
Evergy Kansas Central | Alternative investments fund
Assets
Total nuclear decommissioning trust	17.4	23.9
Evergy Kansas Central | Real estate securities fund
Assets
Total nuclear decommissioning trust	12.9	12.6
Evergy Kansas Central | Cash equivalents
Assets
Total nuclear decommissioning trust	0.8	0.5
Total rabbi trust	0.1	0.1
Evergy Kansas Central | Level 1
Assets
Total nuclear decommissioning trust	225.4	228.5
Total rabbi trust	0.1	0.1
Total Assets	225.5	228.6
Evergy Kansas Central | Level 1 | Core bond fund
Assets
Total nuclear decommissioning trust	39.7	39.3
Total rabbi trust	0	0
Evergy Kansas Central | Level 1 | High-yield bond fund
Assets
Total nuclear decommissioning trust	20.6	22.3
Evergy Kansas Central | Level 1 | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.5	19.4
Evergy Kansas Central | Level 1 | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	16.9	16.4
Total rabbi trust	0	0
Evergy Kansas Central | Level 1 | Alternative investments fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 1 | Real estate securities fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 1 | Cash equivalents
Assets
Total nuclear decommissioning trust	0.8	0.5
Total rabbi trust	0.1	0.1
Evergy Kansas Central | Level 2
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Total Assets	0	0
Evergy Kansas Central | Level 2 | Core bond fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Level 2 | High-yield bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 2 | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 2 | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Level 2 | Alternative investments fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 2 | Real estate securities fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 2 | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Level 3
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Total Assets	0	0
Evergy Kansas Central | Level 3 | Core bond fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Level 3 | High-yield bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 3 | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 3 | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Level 3 | Alternative investments fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 3 | Real estate securities fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Level 3 | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | NAV
Assets
Total nuclear decommissioning trust	37.8	44
Total rabbi trust	31.4	31.6
Total Assets	69.2	75.6
Evergy Kansas Central | NAV | Core bond fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	25	25.3
Evergy Kansas Central | NAV | High-yield bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | NAV | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | NAV | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	6.4	6.3
Evergy Kansas Central | NAV | Alternative investments fund
Assets
Total nuclear decommissioning trust	17.4	23.9
Evergy Kansas Central | NAV | Real estate securities fund
Assets
Total nuclear decommissioning trust	12.9	12.6
Evergy Kansas Central | NAV | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Domestic | Equity securities
Assets
Total nuclear decommissioning trust	85.2	86.1
Evergy Kansas Central | Domestic | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	77.7	78.6
Evergy Kansas Central | Domestic | Level 2 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Domestic | Level 3 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | Domestic | NAV | Equity securities
Assets
Total nuclear decommissioning trust	7.5	7.5
Evergy Kansas Central | International | Equity securities
Assets
Total nuclear decommissioning trust	51.2	52
Evergy Kansas Central | International | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	51.2	52
Evergy Kansas Central | International | Level 2 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | International | Level 3 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Evergy Kansas Central | International | NAV | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro
Assets
Total nuclear decommissioning trust	294.2	300.7
Total self-insured health plan trust	10.8	9.9
Total Assets	305	310.6
Evergy Metro | Equity securities
Assets
Total nuclear decommissioning trust	196.5	211.1
Total self-insured health plan trust	0.5	0.5
Evergy Metro | Cash equivalents
Assets
Total nuclear decommissioning trust	1.8	3.1
Evergy Metro | U.S. Treasury
Assets
Total nuclear decommissioning trust	50.8	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	3.1	2.2
Evergy Metro | Corporate bonds
Assets
Total nuclear decommissioning trust	40.7	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	8.8	6.7
Evergy Metro | Cash and cash equivalents
Assets
Total self-insured health plan trust	1.5	2.7
Evergy Metro | Level 1
Assets
Total nuclear decommissioning trust	249.1	264.5
Total self-insured health plan trust	5.2	4.6
Total Assets	254.3	269.1
Evergy Metro | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	196.5	211.1
Total self-insured health plan trust	0.5	0.5
Evergy Metro | Level 1 | Cash equivalents
Assets
Total nuclear decommissioning trust	1.8	3.1
Evergy Metro | Level 1 | U.S. Treasury
Assets
Total nuclear decommissioning trust	50.8	50.3
Evergy Metro | Level 1 | U.S. Agency
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 1 | State and local obligations
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 1 | Corporate bonds
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 1 | Foreign governments
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 1 | Other
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 1 | Debt securities
Assets
Total self-insured health plan trust	3.2	1.4
Evergy Metro | Level 1 | Cash and cash equivalents
Assets
Total self-insured health plan trust	1.5	2.7
Evergy Metro | Level 2
Assets
Total nuclear decommissioning trust	45.1	36.2
Total self-insured health plan trust	5.6	5.3
Total Assets	50.7	41.5
Evergy Metro | Level 2 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Total self-insured health plan trust	0	0
Evergy Metro | Level 2 | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 2 | U.S. Treasury
Assets
Total nuclear decommissioning trust	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	3.1	2.2
Evergy Metro | Level 2 | Corporate bonds
Assets
Total nuclear decommissioning trust	40.7	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	5.6	5.3
Evergy Metro | Level 2 | Cash and cash equivalents
Assets
Total self-insured health plan trust	0	0
Evergy Metro | Level 3
Assets
Total nuclear decommissioning trust	0	0
Total self-insured health plan trust	0	0
Total Assets	0	0
Evergy Metro | Level 3 | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Total self-insured health plan trust	0	0
Evergy Metro | Level 3 | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | U.S. Treasury
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | U.S. Agency
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | State and local obligations
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | Corporate bonds
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | Foreign governments
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | Other
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | Level 3 | Debt securities
Assets
Total self-insured health plan trust	0	0
Evergy Metro | Level 3 | Cash and cash equivalents
Assets
Total self-insured health plan trust	0	0
Evergy Metro | NAV
Assets
Total nuclear decommissioning trust	0	0
Total self-insured health plan trust	0	0
Total Assets	0	0
Evergy Metro | NAV | Equity securities
Assets
Total nuclear decommissioning trust	0	0
Total self-insured health plan trust	0	0
Evergy Metro | NAV | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | U.S. Treasury
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | U.S. Agency
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | State and local obligations
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | Corporate bonds
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | Foreign governments
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | Other
Assets
Total nuclear decommissioning trust	0	0
Evergy Metro | NAV | Debt securities
Assets
Total self-insured health plan trust	0	0
Evergy Metro | NAV | Cash and cash equivalents
Assets
Total self-insured health plan trust	0	0
Other Evergy
Assets
Total rabbi trust	13.6	13.8
Other Evergy | Fixed income fund
Assets
Total rabbi trust	13	13.3
Other Evergy | Cash and cash equivalents
Assets
Total rabbi trust	0.6	0.5
Other Evergy | Level 1
Assets
Total rabbi trust	0.6	0.5
Other Evergy | Level 1 | Fixed income fund
Assets
Total rabbi trust	0	0
Other Evergy | Level 1 | Cash and cash equivalents
Assets
Total rabbi trust	0.6	0.5
Other Evergy | Level 2
Assets
Total rabbi trust	0	0
Other Evergy | Level 2 | Fixed income fund
Assets
Total rabbi trust	0	0
Other Evergy | Level 2 | Cash and cash equivalents
Assets
Total rabbi trust	0	0
Other Evergy | Level 3
Assets
Total rabbi trust	0	0
Other Evergy | Level 3 | Fixed income fund
Assets
Total rabbi trust	0	0
Other Evergy | Level 3 | Cash and cash equivalents
Assets
Total rabbi trust	0	0
Other Evergy | NAV
Assets
Total rabbi trust	13	13.3
Other Evergy | NAV | Fixed income fund
Assets
Total rabbi trust	13	13.3
Other Evergy | NAV | Cash and cash equivalents
Assets
Total rabbi trust	$ 0	$ 0

FAIR VALUE MEASUREMENTS - NAV (

FAIR VALUE MEASUREMENTS - NAV (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)fundextension	Dec. 31, 2019USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 2.6	$ 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
Evergy Kansas Central | Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	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	37.8
Unfunded Commitments	2.6	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
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
Evergy Kansas Central | Rabbi trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0	0
Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	0	0
Domestic | Evergy Kansas Central | Equity securities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 2.6	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	$ 557.4	573.2
Total rabbi trust	45.1	45.5
Total Assets	613.3	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	263.2	272.5
Total rabbi trust	31.5	31.7
Total Assets	294.7	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	17.4	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	12.9	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	39.7	39.3
Total rabbi trust	25	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	16.9	16.4
Total rabbi trust	6.4	6.3
Fair Value, Measurements, Recurring | Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	13.6	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	85.2	86.1
NAV | Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	37.8	44
Total rabbi trust	44.4	44.9
Total Assets	82.2	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	37.8	44
Total rabbi trust	31.4	31.6
Total Assets	69.2	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	$ 17.4	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	$ 12.9	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
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
Total rabbi trust	25	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
Total rabbi trust	6.4	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	31.4	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	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	$ 7.5	$ 7.5

FAIR VALUE MEASUREMENTS - Gains

FAIR VALUE MEASUREMENTS - Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 58.4	$ 16.6	$ (29.9)	$ 57.1
Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	53.3	13.3	(36)	51.2
Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	2.3	2.3	5.3	4.4
Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	2.8	1	0.8	1.5
Evergy Kansas Central
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	24.7	9.7	(15.5)	28.2
Evergy Kansas Central | Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	22.1	8.8	(16)	26
Evergy Kansas Central | Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	2.6	0.9	0.5	2.2
Evergy Metro
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	33.5	6.8	(14.7)	29.6
Evergy Metro | Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	31.2	4.5	(20)	25.2
Evergy Metro | Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 2.3	$ 2.3	$ 5.3	$ 4.4

RELATED PARTY TRANSACTIONS AN_3

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Evergy Metro | Money Pool
Related Party Transaction [Line Items]
Due from (to) related parties	$ 0		$ 0		$ 0
Evergy Metro | Evergy Missouri West Inc
Related Party Transaction [Line Items]
Due from (to) related parties	62.8		62.8		78.7
Evergy Metro | Evergy Missouri West Inc | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	36	$ 42.2	75.3	$ 84.2
Evergy Metro | Evergy Kansas Central
Related Party Transaction [Line Items]
Due from (to) related parties	5.9		5.9		14.9
Evergy Metro | Evergy Kansas Central | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	19.5	44.3	67.6	75.8
Evergy Metro | Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	14.7		14.7		(4.3)
Evergy Metro | Evergy | Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	7.1		7.1
Evergy Metro | Evergy | Income Taxes Payable
Related Party Transaction [Line Items]
Due from (to) related parties					(14.1)
Evergy Kansas Central | Evergy Missouri West Inc
Related Party Transaction [Line Items]
Due from (to) related parties	3		3		3.1
Evergy Kansas Central | Evergy Missouri West Inc | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	10	6.4	14.3	12.7
Evergy Kansas Central | Evergy Metro
Related Party Transaction [Line Items]
Due from (to) related parties	(5.9)		(5.9)		(14.9)
Evergy Kansas Central | Evergy Metro | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	4.5	$ 8.9	19.5	$ 16.3
Evergy Kansas Central | Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	0.6		0.6		6.9
Evergy Kansas Central | Evergy | Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	26.6		26.6		37.9
Evergy Kansas Central | Evergy Metro | Subsidiary of Common Parent
Related Party Transaction [Line Items]
Right-of-use assets under operating leases	29.3		29.3		29.5
Lease liability recorded in other current liabilities	0.7		0.7		0.6
Total long-term obligations under operating leases	$ 28.6		$ 28.6		$ 28.9
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%		18.00%
Jeffrey Energy Center | Evergy Missouri West Inc
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	8.00%		8.00%
La Cygne Station | Evergy Kansas Central
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	50.00%		50.00%

TAXES - Income Tax Expense (Det

TAXES - Income Tax Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Current income taxes
Federal	$ (21)	$ 8.7	$ (18.6)	$ 20.6
State	(6.9)	(0.2)	(7.3)	(0.8)
Total	(27.9)	8.5	(25.9)	19.8
Deferred income taxes
Federal	30.8	9.8	36.8	2.5
State	33.4	7.2	36.2	13.5
Total	64.2	17	73	16
Investment tax credit amortization	(2.6)	(1.1)	(3.3)	(2.1)
Income tax expense	$ 33.7	$ 24.4	$ 43.8	$ 33.7
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effect of:
COLI policies	(1.60%)	(1.80%)	(1.60%)	(1.80%)
State income taxes	3.60%	2.90%	3.20%	3.60%
Flow through depreciation for plant-related differences	(5.00%)	(2.70%)	(4.70%)	(3.40%)
Federal tax credits	(4.60%)	(4.00%)	(4.60%)	(3.90%)
Non-controlling interest	(0.30%)	(0.50%)	(0.30%)	(0.40%)
AFUDC equity	(0.70%)	(0.10%)	(0.60%)	0.00%
Amortization of federal investment tax credits	(0.50%)	(0.50%)	(0.50%)	(0.50%)
State tax rate change	8.10%	0.00%	5.50%	0.00%
Valuation allowance	0.00%	0.00%	0.00%	(2.80%)
Stock compensation	(0.40%)	(0.30%)	(0.20%)	(0.10%)
Officer compensation limitation	0.20%	0.10%	0.20%	0.10%
Other	0.00%	0.40%	0.00%	0.20%
Effective income tax rate	19.80%	14.50%	17.40%	12.00%
Evergy Kansas Central
Current income taxes
Federal	$ (12.1)	$ 17.5	$ 12.1	$ 27.9
State	(6.5)	(1.6)	(6.9)	(1.2)
Total	(18.6)	15.9	5.2	26.7
Deferred income taxes
Federal	(10.4)	(10.7)	(28.6)	(13.9)
State	150.2	5.5	152.8	9.1
Total	139.8	(5.2)	124.2	(4.8)
Investment tax credit amortization	(2.3)	(0.8)	(2.7)	(1.5)
Income tax expense	$ 118.9	$ 9.9	$ 126.7	$ 20.4
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effect of:
COLI policies	(3.00%)	(3.30%)	(3.00%)	(3.30%)
State income taxes	4.40%	3.00%	3.60%	4.00%
Flow through depreciation for plant-related differences	0.10%	0.30%	0.00%	0.10%
Federal tax credits	(6.90%)	(6.10%)	(6.80%)	(6.10%)
Non-controlling interest	(0.60%)	(1.00%)	(0.60%)	(0.80%)
AFUDC equity	(1.60%)	(0.10%)	(1.10%)	(0.10%)
Amortization of federal investment tax credits	(0.70%)	(0.70%)	(0.70%)	(0.70%)
State tax rate change	134.00%	0.00%	75.60%	0.00%
Valuation allowance	0.00%	0.00%	0.00%	(1.00%)
Stock compensation	(0.50%)	(0.50%)	(0.30%)	(0.30%)
Other	0.00%	0.30%	0.10%	0.30%
Effective income tax rate	146.20%	12.90%	87.80%	13.10%
Evergy Metro
Current income taxes
Federal	$ (11.1)	$ 26.4	$ 0.5	$ 34.3
State	(0.2)	4.6	1	5.4
Total	(11.3)	31	1.5	39.7
Deferred income taxes
Federal	26.2	(19.7)	16.7	(24.9)
State	(37.3)	(3)	(37.7)	(2.6)
Total	(11.1)	(22.7)	(21)	(27.5)
Investment tax credit amortization	(0.2)	(0.3)	(0.5)	(0.5)
Income tax expense	$ (22.6)	$ 8	$ (20)	$ 11.7
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effect of:
COLI policies	(0.30%)	(0.10%)	(0.20%)	(0.10%)
State income taxes	3.30%	1.80%	3.00%	2.50%
Flow through depreciation for plant-related differences	(9.50%)	(5.70%)	(9.00%)	(6.00%)
Federal tax credits	(2.40%)	(1.50%)	(2.40%)	(1.50%)
AFUDC equity	0.10%	0.00%	0.00%	0.00%
Amortization of federal investment tax credits	(0.40%)	(0.30%)	(0.40%)	(0.30%)
State tax rate change	(40.10%)	0.00%	(29.70%)	0.00%
Stock compensation	(0.30%)	(0.20%)	(1.10%)	0.10%
Officer compensation limitation	0.60%	0.30%	0.40%	0.30%
Other	(0.10%)	(3.30%)	0.00%	(2.50%)
Effective income tax rate	(28.10%)	12.00%	(18.40%)	13.50%

TAXES - State Tax Reform (Detai

TAXES - State Tax Reform (Details) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	May 31, 2020	Jun. 30, 2020
State Tax Reform [Line Items]
Decrease in net deferred income tax liabilities due to tax reform	$ 233.8
Decrease in net deferred income tax liabilities for revaluation of deferred income tax assets and liabilities in rate base	400.4
Decrease in net deferred income tax liabilities for tax gross-up adjustment for ratemaking purposes due to tax reform	31.7
Decrease in unamortized investment tax credits	183.6
Decrease in unamortized investment tax credits for tax gross up adjustment for ratemaking purposes	16.9
Income tax expense from tax reform	13.8
Kansas state statutory income tax rate thru 2020		7.00%
Evergy Kansas Central
State Tax Reform [Line Items]
Decrease in net deferred income tax liabilities due to tax reform	17.6
Decrease in net deferred income tax liabilities for revaluation of deferred income tax assets and liabilities in rate base	293.7
Decrease in net deferred income tax liabilities for tax gross-up adjustment for ratemaking purposes due to tax reform	17.3
Decrease in unamortized investment tax credits	183.6
Decrease in unamortized investment tax credits for tax gross up adjustment for ratemaking purposes	16.9
Income tax expense from tax reform	109
Evergy Metro
State Tax Reform [Line Items]
Decrease in net deferred income tax liabilities due to tax reform	152.9
Decrease in net deferred income tax liabilities for revaluation of deferred income tax assets and liabilities in rate base	106.7
Decrease in net deferred income tax liabilities for tax gross-up adjustment for ratemaking purposes due to tax reform	14.4
Income tax benefit from tax reform	$ 32.2