Evergy Kansas Central 10-Q 5 Nov 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2020	Oct. 30, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 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		226,831,800
Entity Central Index Key	0001711269
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
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	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 361.6	$ 23.2
Receivables, net of allowance for credit losses of $15.2 and $10.5, respectively	318.5	228.5
Accounts receivable pledged as collateral	395	339
Fuel inventory and supplies	512.1	481.6
Income taxes receivable	53.9	85.5
Regulatory assets	205.9	231.7
Prepaid expenses and other assets	67.7	78.2
Total Current Assets	1,914.7	1,467.7
OTHER ASSETS:
Regulatory assets	1,734.1	1,740.5
Nuclear decommissioning trust fund	587.5	573.2
Goodwill	2,336.6	2,336.6
Other	527.5	511.5
Total Other Assets	5,185.7	5,161.8
TOTAL ASSETS	26,881.2	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	200	561.9
Collateralized note payable	395	339
Accounts payable	358.9	528.8
Accrued taxes	305.8	145.1
Accrued interest	118.6	122.3
Regulatory liabilities	35.1	63.3
Asset retirement obligations	66.5	71.3
Accrued compensation and benefits	69.9	59.2
Other	176.1	161.6
Total Current Liabilities	2,098.2	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,682.9	1,744.4
Unamortized investment tax credits	188.3	375.4
Regulatory liabilities	2,589.8	2,248.3
Pension and post-retirement liability	1,047.8	1,017.6
Asset retirement obligations	882.3	602.8
Other	331.3	340.7
Total Long-Term Liabilities	15,998.8	15,094.7
Commitments and Contingencies (Note 11)
Evergy, Inc. Shareholders' Equity:
Common stock - 600,000,000 shares authorized, without par value 226,832,410 and 226,641,443 shares issued, stated value	7,077	7,070.4
Retained earnings	1,773.5	1,551.5
Accumulated other comprehensive loss	(48.4)	(50)
Total Evergy, Inc. Shareholders' Equity	8,802.1	8,571.9
Noncontrolling Interests	(17.9)	(26.6)
Total Equity	8,784.2	8,545.3
TOTAL LIABILITIES AND EQUITY	26,881.2	25,975.9
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	19,624.1	19,184.4
CURRENT LIABILITIES:
Current maturities of long-term debt	353.5	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	9,276.4	8,746.7
Variable Interest Entities
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	156.7	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	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Allowance for credit losses	$ 15.2	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,832,410	226,641,443

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
OPERATING REVENUES	$ 1,517.6	$ 1,577.6	$ 3,819	$ 4,016.2
OPERATING EXPENSES:
Fuel and purchased power	316.2	357.3	832.5	978.9
SPP network transmission costs	66.1	62.4	197.8	188.7
Operating and maintenance	304.6	311.6	865.5	907.1
Depreciation and amortization	218	216.1	658.1	645.1
Taxes other than income tax	91	91.5	274.2	276.4
Total Operating Expenses	995.9	1,038.9	2,828.1	2,996.2
INCOME FROM OPERATIONS	521.7	538.7	990.9	1,020
OTHER INCOME (EXPENSE):
Investment earnings	1.7	1.8	4	7.6
Other income	7.1	2.8	17	17.1
Other expense	(20.1)	(19.7)	(57.7)	(57.2)
Total Other Expense, Net	(11.3)	(15.1)	(36.7)	(32.5)
Interest expense	94.8	90.8	290.5	277.3
INCOME BEFORE INCOME TAXES	415.6	432.8	663.7	710.2
Income tax expense	50	65.5	93.8	99.2
Equity in earnings of equity method investees, net of income taxes	1.9	3.6	6.1	7.9
NET INCOME	367.5	370.9	576	618.9
Less: Net income attributable to noncontrolling interests	3	4.1	8.7	12.9
Net income attributable to Evergy, Inc.	$ 364.5	$ 366.8	$ 567.3	$ 606
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)	$ 1.60	$ 1.56	$ 2.50	$ 2.49
Diluted earnings per common share (in dollars per share)	$ 1.60	$ 1.56	$ 2.49	$ 2.49
AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	227.3	234.6	227.2	243.5
Diluted (in shares)	227.5	235	227.5	243.8
COMPREHENSIVE INCOME
Net income	$ 367.5	$ 370.9	$ 576	$ 618.9
Derivative hedging activity
Loss on derivative hedging instruments	0	(29.4)	0	(64.4)
Income tax benefit	0	7.5	0	16.5
Net loss on derivative hedging instruments	0	(21.9)	0	(47.9)
Reclassification to expenses, net of tax	1.4	0.2	1.7	0.2
Derivative hedging activity, net of tax	1.4	(21.7)	1.7	(47.7)
Defined benefit pension plans
Amortization of net losses included in net periodic benefit costs, net of tax	0	0	(0.1)	0
Change in unrecognized pension expense, net of tax	0	0	(0.1)	0
Total other comprehensive income (loss)	1.4	(21.7)	1.6	(47.7)
COMPREHENSIVE INCOME	368.9	349.2	577.6	571.2
Less:  comprehensive income attributable to noncontrolling interest	3	4.1	8.7	12.9
COMPREHENSIVE INCOME	$ 365.9	$ 345.1	$ 568.9	$ 558.3

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 576	$ 618.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	658.1	645.1
Amortization of nuclear fuel	43.8	42.6
Amortization of deferred refueling outage	19.1	19.4
Amortization of corporate-owned life insurance	14.8	16.5
Non-cash compensation	12.1	12.9
Net deferred income taxes and credits	136.5	111.4
Allowance for equity funds used during construction	(9.9)	(0.9)
Payments for asset retirement obligations	(11)	(11.6)
Equity in earnings of equity method investees, net of income taxes	(6.1)	(7.9)
Income from corporate-owned life insurance	(6.8)	(19.5)
Other	0.7	(3.6)
Changes in working capital items:
Accounts receivable	(68.6)	(68.4)
Accounts receivable pledged as collateral	(56)	(30)
Fuel inventory and supplies	(30)	57
Prepaid expenses and other current assets	20.9	65.7
Accounts payable	(87.5)	(111.5)
Accrued taxes	192.3	155.3
Other current liabilities	(43.9)	(77.7)
Changes in other assets	88.4	56.1
Changes in other liabilities	(21.2)	(22.5)
Cash Flows from Operating Activities	1,421.7	1,447.3
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,058.1)	(849.1)
Purchase of securities - trusts	(50.3)	(37.4)
Sale of securities - trusts	44.2	32.3
Investment in corporate-owned life insurance	(16.4)	(17.2)
Proceeds from investment in corporate-owned life insurance	60.6	99.1
Other investing activities	(9.9)	0.2
Cash Flows used in Investing Activities	(1,029.9)	(772.1)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(361.9)	(378)
Proceeds from term loan facility	0	1,000
Repayment of term loan facility	0	(1,000)
Collateralized short-term borrowings, net	56	30
Proceeds from long-term debt	889.3	2,374
Retirements of long-term debt	(251.1)	(701.1)
Retirements of long-term debt of variable interest entities	(32.3)	(30.3)
Payment for settlement of interest rate swap accounted for as a cash flow hedge	0	(69.8)
Borrowings against cash surrender value of corporate-owned life insurance	54.5	57.2
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(52.5)	(77.4)
Cash dividends paid	(343.6)	(347.5)
Repurchase of common stock under repurchase plan	0	(1,628.7)
Distributions to shareholders of noncontrolling interests	0	(8.5)
Other financing activities	(11.8)	(5.3)
Cash Flows used in Financing Activities	(53.4)	(785.4)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	338.4	(110.2)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	$ 361.6	$ 50.1

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	618.9
Derivative hedging activity, net of tax	(47.7)
Change in unrecognized pension expense, net of tax	0
Ending balance (in shares) at Sep. 30, 2019		227,901,556
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	(50.7)	(29.4)
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)
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	370.9		366.8		4.1
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		4,737
Issuance of stock compensation and reinvested dividends, net of tax withholding	0	$ 0
Dividends declared on common stock	(111.9)		(111.9)
Dividend equivalents declared	(0.9)		(0.9)
Stock compensation expense	$ 3.5	3.5
Repurchase of common stock (in shares)	(7,569,029)
Repurchase of common stock	$ (500)	(500)
Distributions to shareholders of noncontrolling interests	(5.1)				(5.1)
Derivative hedging activity, net of tax	(21.7)			(21.7)
Change in unrecognized pension expense, net of tax	0
Other	0.4	$ 0.4
Ending balance (in shares) at Sep. 30, 2019		227,901,556
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	(50.7)	(29.4)
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	576
Derivative hedging activity, net of tax	1.7
Change in unrecognized pension expense, net of tax	(0.1)
Ending balance (in shares) at Sep. 30, 2020		226,832,410
Ending balance at Sep. 30, 2020	8,784.2	$ 7,077	1,773.5	(48.4)	(17.9)
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	367.5		364.5		3
Issuance of stock compensation and reinvested dividends, net of tax withholding (in shares)		7,305
Issuance of stock compensation and reinvested dividends, net of tax withholding	0	$ 0
Dividends declared on common stock	(114.5)		(114.5)
Dividend equivalents declared	(0.6)		(0.6)
Stock compensation expense	3.4	3.4
Derivative hedging activity, net of tax	1.4			1.4
Change in unrecognized pension expense, net of tax	0
Other	0.1	$ 0.1
Ending balance (in shares) at Sep. 30, 2020		226,832,410
Ending balance at Sep. 30, 2020	$ 8,784.2	$ 7,077	$ 1,773.5	$ (48.4)	$ (17.9)

Consolidated Statements of Ch_2

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

Consolidated Balance Sheets - E

Consolidated Balance Sheets - Evergy Kansas Central, Inc - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 361.6	$ 23.2
Receivables, net of allowance for credit losses of $5.5 and $3.8, respectively	318.5	228.5
Accounts receivable pledged as collateral	395	339
Fuel inventory and supplies	512.1	481.6
Income taxes receivable	53.9	85.5
Regulatory assets	205.9	231.7
Prepaid expenses and other assets	67.7	78.2
Total Current Assets	1,914.7	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,624.1	19,184.4
OTHER ASSETS:
Regulatory assets	1,734.1	1,740.5
Nuclear decommissioning trust fund	587.5	573.2
Other	527.5	511.5
Total Other Assets	5,185.7	5,161.8
TOTAL ASSETS	26,881.2	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	200	561.9
Collateralized note payable	395	339
Accounts payable	358.9	528.8
Accrued taxes	305.8	145.1
Accrued interest	118.6	122.3
Regulatory liabilities	35.1	63.3
Asset retirement obligations	66.5	71.3
Accrued compensation and benefits	69.9	59.2
Other	176.1	161.6
Total Current Liabilities	2,098.2	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,682.9	1,744.4
Unamortized investment tax credits	188.3	375.4
Regulatory liabilities	2,589.8	2,248.3
Pension and post-retirement liability	1,047.8	1,017.6
Asset retirement obligations	882.3	602.8
Other	331.3	340.7
Total Long-Term Liabilities	15,998.8	15,094.7
Commitments and Contingencies (Note 11)
Evergy, Inc. Shareholders' Equity:
Common stock	7,077	7,070.4
Retained earnings	1,773.5	1,551.5
Total Evergy, Inc. Shareholders' Equity	8,802.1	8,571.9
Noncontrolling Interests	(17.9)	(26.6)
Total Equity	8,784.2	8,545.3
TOTAL LIABILITIES AND EQUITY	26,881.2	25,975.9
Evergy Kansas Central
CURRENT ASSETS:
Cash and cash equivalents	68.4	5.2
Receivables, net of allowance for credit losses of $5.5 and $3.8, respectively	256.5	140.4
Related party receivables	39	9.9
Accounts receivable pledged as collateral	200	171
Fuel inventory and supplies	279.8	266.4
Income taxes receivable	29.3	30.4
Regulatory assets	93.3	93.3
Prepaid expenses and other assets	23.3	34.3
Total Current Assets	989.6	750.9
PROPERTY, PLANT AND EQUIPMENT, NET	10,054.8	9,864.9
OTHER ASSETS:
Regulatory assets	699.7	730.4
Nuclear decommissioning trust fund	279.1	272.5
Other	267.4	266
Total Other Assets	1,246.2	1,268.9
TOTAL ASSETS	12,447.3	12,046.7
CURRENT LIABILITIES:
Notes payable and commercial paper	0	249.2
Collateralized note payable	200	171
Accounts payable	192.2	200.5
Related party payables	50.1	14.8
Accrued taxes	159.5	98.7
Accrued interest	64.4	74.2
Regulatory liabilities	23.6	42.3
Asset retirement obligations	23.3	23.3
Accrued compensation and benefits	21.1	14.2
Other	134.5	116
Total Current Liabilities	887.5	1,286.5
LONG-TERM LIABILITIES:
Deferred income taxes	853.6	817.7
Unamortized investment tax credits	67	253.2
Regulatory liabilities	1,410.9	1,132.5
Pension and post-retirement liability	462.4	495.5
Asset retirement obligations	398.6	249.6
Other	160.5	151.8
Total Long-Term Liabilities	7,284.1	6,555.2
Commitments and Contingencies (Note 11)
Evergy, Inc. Shareholders' Equity:
Common stock	2,737.6	2,737.6
Retained earnings	1,556	1,494
Total Evergy, Inc. Shareholders' Equity	4,293.6	4,231.6
Noncontrolling Interests	(17.9)	(26.6)
Total Equity	4,275.7	4,205
TOTAL LIABILITIES AND EQUITY	12,447.3	12,046.7
Consolidated Entity Excluding Variable Interest Entities (VIE)
CURRENT LIABILITIES:
Current maturities of long-term debt	353.5	251.1
LONG-TERM LIABILITIES:
Long-term debt, net	9,276.4	8,746.7
Consolidated Entity Excluding Variable Interest Entities (VIE) | Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	10,054.8	9,864.9
CURRENT LIABILITIES:
Current maturities of long-term debt	0	250
LONG-TERM LIABILITIES:
Long-term debt, net	3,931.1	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	156.7	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	Sep. 30, 2020	Dec. 31, 2019
Allowance for credit losses	$ 15.2	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,832,410	226,641,443
Evergy Kansas Central
Allowance for credit losses	$ 5.5	$ 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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
OPERATING REVENUES	$ 1,517.6	$ 1,577.6	$ 3,819	$ 4,016.2
OPERATING EXPENSES:
Fuel and purchased power	316.2	357.3	832.5	978.9
SPP network transmission costs	66.1	62.4	197.8	188.7
Operating and maintenance	304.6	311.6	865.5	907.1
Depreciation and amortization	218	216.1	658.1	645.1
Taxes other than income tax	91	91.5	274.2	276.4
Total Operating Expenses	995.9	1,038.9	2,828.1	2,996.2
INCOME FROM OPERATIONS	521.7	538.7	990.9	1,020
OTHER INCOME (EXPENSE):
Investment earnings	1.7	1.8	4	7.6
Other income	7.1	2.8	17	17.1
Other expense	(20.1)	(19.7)	(57.7)	(57.2)
Total Other Income (Expense), Net	11.3	15.1	36.7	32.5
Interest expense	94.8	90.8	290.5	277.3
INCOME BEFORE INCOME TAXES	415.6	432.8	663.7	710.2
Income tax expense	50	65.5	93.8	99.2
Equity in earnings of equity method investees, net of income taxes	1.9	3.6	6.1	7.9
NET INCOME	367.5	370.9	576	618.9
Less: Net income attributable to noncontrolling interests	3	4.1	8.7	12.9
Net income attributable to Evergy, Inc.	364.5	366.8	567.3	606
Evergy Kansas Central
OPERATING REVENUES	733.6	749	1,864.5	1,931.3
OPERATING EXPENSES:
Fuel and purchased power	128.6	144.9	329.9	375.3
SPP network transmission costs	66.1	62.4	197.8	188.7
Operating and maintenance	137.4	140.4	376.3	396.4
Depreciation and amortization	113.4	110.9	339	331.3
Taxes other than income tax	47.4	48	145.1	145.3
Total Operating Expenses	492.9	506.6	1,388.1	1,437
INCOME FROM OPERATIONS	240.7	242.4	476.4	494.3
OTHER INCOME (EXPENSE):
Investment earnings	1	0.6	3.4	3
Other income	2.7	2.3	11.3	13
Other expense	(9.7)	(10.8)	(26.9)	(29.9)
Total Other Income (Expense), Net	6	7.9	12.2	13.9
Interest expense	40.3	41.7	127.7	134.1
INCOME BEFORE INCOME TAXES	194.4	192.8	336.5	346.3
Income tax expense	22.5	25.8	149.2	46.2
Equity in earnings of equity method investees, net of income taxes	1.2	1.2	3.4	3.6
NET INCOME	173.1	168.2	190.7	303.7
Less: Net income attributable to noncontrolling interests	3	4.1	8.7	12.9
Net income attributable to Evergy, Inc.	$ 170.1	$ 164.1	$ 182	$ 290.8

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows - Evergy Kansas Central, Inc - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 576	$ 618.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	658.1	645.1
Amortization of nuclear fuel	43.8	42.6
Amortization of deferred refueling outage	19.1	19.4
Amortization of corporate-owned life insurance	14.8	16.5
Net deferred income taxes and credits	136.5	111.4
Allowance for equity funds used during construction	(9.9)	(0.9)
Payments for asset retirement obligations	(11)	(11.6)
Equity in earnings of equity method investees, net of income taxes	(6.1)	(7.9)
Income from corporate-owned life insurance	(6.8)	(19.5)
Other	0.7	(3.6)
Changes in working capital items:
Accounts receivable	(68.6)	(68.4)
Accounts receivable pledged as collateral	(56)	(30)
Fuel inventory and supplies	(30)	57
Prepaid expenses and other current assets	20.9	65.7
Accounts payable	(87.5)	(111.5)
Accrued taxes	192.3	155.3
Other current liabilities	(43.9)	(77.7)
Changes in other assets	88.4	56.1
Changes in other liabilities	(21.2)	(22.5)
Cash Flows from Operating Activities	1,421.7	1,447.3
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,058.1)	(849.1)
Purchase of securities - trusts	(50.3)	(37.4)
Sale of securities - trusts	44.2	32.3
Investment in corporate-owned life insurance	(16.4)	(17.2)
Proceeds from investment in corporate-owned life insurance	60.6	99.1
Other investing activities	(9.9)	0.2
Cash Flows used in Investing Activities	(1,029.9)	(772.1)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(361.9)	(378)
Collateralized short-term debt, net	56	30
Proceeds from long-term debt	889.3	2,374
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	54.5	57.2
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(52.5)	(77.4)
Cash dividends paid	(343.6)	(347.5)
Distributions to shareholders of noncontrolling interests	0	(8.5)
Other financing activities	(11.8)	(5.3)
Cash Flows used in Financing Activities	(53.4)	(785.4)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	338.4	(110.2)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	361.6	50.1
Evergy Kansas Central
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	190.7	303.7
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	339	331.3
Amortization of nuclear fuel	21.6	21.2
Amortization of deferred refueling outage	9.5	9.7
Amortization of corporate-owned life insurance	14.8	16.5
Net deferred income taxes and credits	155	9.5
Allowance for equity funds used during construction	(5.8)	0
Payments for asset retirement obligations	(2.1)	(9.5)
Equity in earnings of equity method investees, net of income taxes	(3.4)	(3.6)
Income from corporate-owned life insurance	(6.8)	(18.8)
Other	(4.1)	(4.1)
Changes in working capital items:
Accounts receivable	(124.4)	(55.4)
Accounts receivable pledged as collateral	(29)	(15)
Fuel inventory and supplies	(12.9)	29.5
Prepaid expenses and other current assets	7	12.2
Accounts payable	88.4	(10.4)
Accrued taxes	61.9	92.8
Other current liabilities	(47.1)	(5.8)
Changes in other assets	33.3	23.8
Changes in other liabilities	(35.8)	(31.1)
Cash Flows from Operating Activities	649.8	696.5
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(494.2)	(418.4)
Purchase of securities - trusts	(16.7)	(12.6)
Sale of securities - trusts	16.3	13.4
Investment in corporate-owned life insurance	(15.6)	(16.4)
Proceeds from investment in corporate-owned life insurance	60.6	97.4
Other investing activities	(2.3)	(3.2)
Cash Flows used in Investing Activities	(451.9)	(339.8)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(249.2)	(229.3)
Collateralized short-term debt, net	29	15
Proceeds from long-term debt	493	294.7
Retirements 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	51.5	54.2
Repayment of borrowings against cash surrender value of corporate-owned life insurance	(52.5)	(76.3)
Cash dividends paid	(120)	(110)
Distributions to shareholders of noncontrolling interests	0	(8.5)
Other financing activities	(4.2)	(3)
Cash Flows used in Financing Activities	(134.7)	(393.5)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	63.2	(36.8)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	5.2	44.5
End of period	$ 68.4	$ 7.7

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	3.8			3.8	3.8			3.8
Distributions to shareholders of noncontrolling interests	(1.4)			(1.4)	(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	618.9				303.7
Ending balance (in shares) at Sep. 30, 2019		227,901,556				1
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	(29.4)	4,149.6	$ 2,737.6	1,441.4	(29.4)
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)
Distributions to shareholders of noncontrolling interests	(2.1)			(2.1)	(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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	370.9		366.8	4.1	168.2		164.1	4.1
Dividends declared on common stock	(111.9)		(111.9)
Distributions to shareholders of noncontrolling interests	(5.1)			(5.1)	(5.1)			(5.1)
Ending balance (in shares) at Sep. 30, 2019		227,901,556				1
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	(29.4)	4,149.6	$ 2,737.6	1,441.4	(29.4)
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)
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	576				190.7
Ending balance (in shares) at Sep. 30, 2020		226,832,410				1
Ending balance at Sep. 30, 2020	8,784.2	$ 7,077	1,773.5	(17.9)	4,275.7	$ 2,737.6	1,556	(17.9)
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)
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)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	367.5		364.5	3	173.1		170.1	3
Dividends declared on common stock	(114.5)		(114.5)
Ending balance (in shares) at Sep. 30, 2020		226,832,410				1
Ending balance at Sep. 30, 2020	$ 8,784.2	$ 7,077	$ 1,773.5	$ (17.9)	$ 4,275.7	$ 2,737.6	$ 1,556	$ (17.9)

Consolidated Balance Sheets -_3

Consolidated Balance Sheets - Evergy Metro, Inc - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 361.6	$ 23.2
Receivables, net of allowance for credit losses of $6.5 and $4.6, respectively	318.5	228.5
Accounts receivable pledged as collateral	395	339
Fuel inventory and supplies	512.1	481.6
Income taxes receivable	53.9	85.5
Regulatory assets	205.9	231.7
Total Current Assets	1,914.7	1,467.7
PROPERTY, PLANT AND EQUIPMENT, NET	19,624.1	19,184.4
OTHER ASSETS:
Regulatory assets	1,734.1	1,740.5
Nuclear decommissioning trust fund	587.5	573.2
Other	527.5	511.5
Total Other Assets	5,185.7	5,161.8
TOTAL ASSETS	26,881.2	25,975.9
CURRENT LIABILITIES:
Notes payable and commercial paper	200	561.9
Collateralized note payable	395	339
Accounts payable	358.9	528.8
Accrued taxes	305.8	145.1
Accrued interest	118.6	122.3
Regulatory liabilities	35.1	63.3
Asset retirement obligations	66.5	71.3
Accrued compensation and benefits	69.9	59.2
Other	176.1	161.6
Total Current Liabilities	2,098.2	2,335.9
LONG-TERM LIABILITIES:
Deferred income taxes	1,682.9	1,744.4
Unamortized investment tax credits	188.3	375.4
Regulatory liabilities	2,589.8	2,248.3
Pension and post-retirement liability	1,047.8	1,017.6
Asset retirement obligations	882.3	602.8
Other	331.3	340.7
Total Long-Term Liabilities	15,998.8	15,094.7
Commitments and Contingencies (Note 11)
EQUITY:
Common stock	7,077	7,070.4
Retained earnings	1,773.5	1,551.5
Accumulated other comprehensive loss	(48.4)	(50)
Total Evergy, Inc. Shareholders' Equity	8,802.1	8,571.9
TOTAL LIABILITIES AND EQUITY	26,881.2	25,975.9
Evergy Metro
CURRENT ASSETS:
Cash and cash equivalents	224.3	2
Receivables, net of allowance for credit losses of $6.5 and $4.6, respectively	80	48.1
Related party receivables	225.7	93.9
Accounts receivable pledged as collateral	130	118
Fuel inventory and supplies	173.2	163
Income taxes receivable	0	8.7
Regulatory assets	88.4	95.4
Prepaid expenses	25.4	22.8
Other assets	14.5	15
Total Current Assets	961.5	566.9
PROPERTY, PLANT AND EQUIPMENT, NET	7,027.1	6,839
OTHER ASSETS:
Regulatory assets	490.6	464.4
Nuclear decommissioning trust fund	308.4	300.7
Other	137.5	134.1
Total Other Assets	936.5	899.2
TOTAL ASSETS	8,925.1	8,305.1
CURRENT LIABILITIES:
Notes payable and commercial paper	0	199.3
Collateralized note payable	130	118
Accounts payable	163.9	233.6
Related party payables	34.2	4.6
Accrued taxes	104.3	38.8
Accrued interest	38.2	26.7
Regulatory liabilities	7.5	11.4
Asset retirement obligations	33	36.1
Accrued compensation and benefits	48.9	45.1
Other	31.3	34
Total Current Liabilities	591.3	747.6
LONG-TERM LIABILITIES:
Long-term debt, net	2,922.7	2,525
Deferred income taxes	554.7	642.8
Unamortized investment tax credits	118.7	119.6
Regulatory liabilities	885.6	792.2
Pension and post-retirement liability	561.5	499.7
Asset retirement obligations	348.4	217.5
Other	165.4	180
Total Long-Term Liabilities	5,557	4,976.8
Commitments and Contingencies (Note 11)
EQUITY:
Common stock	1,563.1	1,563.1
Retained earnings	1,209	1,012.8
Accumulated other comprehensive loss	4.7	4.8
Total Evergy, Inc. Shareholders' Equity	2,776.8	2,580.7
TOTAL LIABILITIES AND EQUITY	$ 8,925.1	$ 8,305.1

Consolidated Balance Sheets -_4

Consolidated Balance Sheets - Evergy Metro, Inc (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Allowance for credit losses	$ 15.2	$ 10.5
Common stock - shares authorized (in shares)	600,000,000	600,000,000
Common stock - shares issued (in shares)	226,832,410	226,641,443
Evergy Metro
Allowance for credit losses	$ 6.5	$ 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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
OPERATING REVENUES	$ 1,517.6	$ 1,577.6	$ 3,819	$ 4,016.2
OPERATING EXPENSES:
Fuel and purchased power	316.2	357.3	832.5	978.9
Operating and maintenance	304.6	311.6	865.5	907.1
Depreciation and amortization	218	216.1	658.1	645.1
Taxes other than income tax	91	91.5	274.2	276.4
Total Operating Expenses	995.9	1,038.9	2,828.1	2,996.2
INCOME FROM OPERATIONS	521.7	538.7	990.9	1,020
OTHER INCOME (EXPENSE):
Investment earnings	1.7	1.8	4	7.6
Other income	7.1	2.8	17	17.1
Other expense	(20.1)	(19.7)	(57.7)	(57.2)
Total Other Expense, Net	(11.3)	(15.1)	(36.7)	(32.5)
Interest expense	94.8	90.8	290.5	277.3
INCOME BEFORE INCOME TAXES	415.6	432.8	663.7	710.2
Income tax expense	50	65.5	93.8	99.2
Net income attributable to Evergy, Inc.	364.5	366.8	567.3	606
Derivative hedging activity
Reclassification to expenses, net of tax	1.4	0.2	1.7	0.2
Derivative hedging activity, net of tax	1.4	(21.7)	1.7	(47.7)
Total other comprehensive income (loss)	1.4	(21.7)	1.6	(47.7)
COMPREHENSIVE INCOME	365.9	345.1	568.9	558.3
Evergy Metro
OPERATING REVENUES	528.5	568.8	1,328.3	1,431.2
OPERATING EXPENSES:
Fuel and purchased power	112.2	129.3	306	380.4
Operating and maintenance	101.3	111.2	305.7	341.2
Depreciation and amortization	79.4	80.2	243.6	239
Taxes other than income tax	31.2	32.6	92.4	96.3
Total Operating Expenses	324.1	353.3	947.7	1,056.9
INCOME FROM OPERATIONS	204.4	215.5	380.6	374.3
OTHER INCOME (EXPENSE):
Investment earnings	0.5	0.5	1.3	1.9
Other income	4	1.2	5.1	2.3
Other expense	(6.9)	(4.9)	(20.2)	(15.7)
Total Other Expense, Net	(2.4)	(3.2)	(13.8)	(11.5)
Interest expense	29.2	28.2	85.5	91.6
INCOME BEFORE INCOME TAXES	172.8	184.1	281.3	271.2
Income tax expense	25.1	32.2	5.1	43.9
Net income attributable to Evergy, Inc.	147.7	151.9	276.2	227.3
Derivative hedging activity
Reclassification to expenses, net of tax	(0.2)	(0.1)	(0.1)	0.7
Derivative hedging activity, net of tax	(0.2)	(0.1)	(0.1)	0.7
Total other comprehensive income (loss)	(0.2)	(0.1)	(0.1)	0.7
COMPREHENSIVE INCOME	$ 147.5	$ 151.8	$ 276.1	$ 228

Consolidated Statements of Ca_3

Consolidated Statements of Cash Flows - Evergy Metro, Inc - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	$ 576	$ 618.9
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	658.1	645.1
Amortization of nuclear fuel	43.8	42.6
Amortization of deferred refueling outage	19.1	19.4
Net deferred income taxes and credits	136.5	111.4
Allowance for equity funds used during construction	(9.9)	(0.9)
Payments for asset retirement obligations	(11)	(11.6)
Other	0.7	(3.6)
Changes in working capital items:
Accounts receivable	(68.6)	(68.4)
Accounts receivable pledged as collateral	(56)	(30)
Fuel inventory and supplies	(30)	57
Prepaid expenses and other current assets	20.9	65.7
Accounts payable	(87.5)	(111.5)
Accrued taxes	192.3	155.3
Other current liabilities	(43.9)	(77.7)
Changes in other assets	88.4	56.1
Changes in other liabilities	(21.2)	(22.5)
Cash Flows from Operating Activities	1,421.7	1,447.3
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(1,058.1)	(849.1)
Purchase of securities - trusts	(50.3)	(37.4)
Sale of securities - trusts	44.2	32.3
Other investing activities	(9.9)	0.2
Cash Flows used in Investing Activities	(1,029.9)	(772.1)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(361.9)	(378)
Collateralized short-term debt, net	56	30
Proceeds from long-term debt	889.3	2,374
Retirements of long-term debt	(251.1)	(701.1)
Cash dividends paid	(343.6)	(347.5)
Other financing activities	(11.8)	(5.3)
Cash Flows used in Financing Activities	(53.4)	(785.4)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	338.4	(110.2)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	23.2	160.3
End of period	361.6	50.1
Evergy Metro
CASH FLOWS FROM (USED IN) OPERATING ACTIVITIES:
Net income	276.2	227.3
Adjustments to reconcile income to net cash from operating activities:
Depreciation and amortization	243.6	239
Amortization of nuclear fuel	22.1	21.4
Amortization of deferred refueling outage	9.5	9.7
Net deferred income taxes and credits	3	2.5
Allowance for equity funds used during construction	(4.1)	(0.9)
Payments for asset retirement obligations	(2.7)	(1.7)
Other	(0.3)	0.4
Changes in working capital items:
Accounts receivable	(84.3)	(4.1)
Accounts receivable pledged as collateral	(12)	0
Fuel inventory and supplies	(10.2)	20.4
Prepaid expenses and other current assets	(4.7)	36.2
Accounts payable	(20.1)	(66.3)
Accrued taxes	74.2	70.3
Other current liabilities	14.5	(49)
Changes in other assets	37.7	32.7
Changes in other liabilities	14.2	18.6
Cash Flows from Operating Activities	556.6	556.5
CASH FLOWS FROM (USED IN) INVESTING ACTIVITIES:
Additions to property, plant and equipment	(384.9)	(313)
Purchase of securities - trusts	(33.7)	(24.8)
Sale of securities - trusts	27.9	18.9
Net money pool lending	(78)	0
Other investing activities	2.5	5.1
Cash Flows used in Investing Activities	(466.2)	(313.8)
CASH FLOWS FROM (USED IN) FINANCING ACTIVITIES:
Short-term debt, net	(199.3)	(102)
Collateralized short-term debt, net	12	0
Proceeds from long-term debt	396.4	393.2
Retirements of long-term debt	0	(400)
Cash dividends paid	(80)	(135)
Other financing activities	2.8	1.9
Cash Flows used in Financing Activities	131.9	(241.9)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	222.3	0.8
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	2	2.6
End of period	$ 224.3	$ 3.4

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	618.9			227.3
Derivative hedging activity, net of tax	(47.7)			0.7
Ending balance (in shares) at Sep. 30, 2019		227,901,556			1
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	2,592.9	$ 1,563.1	1,024.9	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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	370.9		366.8	151.9		151.9
Dividends declared on common stock	(111.9)		(111.9)	(70)		(70)
Derivative hedging activity, net of tax	(21.7)			(0.1)
Ending balance (in shares) at Sep. 30, 2019		227,901,556			1
Ending balance at Sep. 30, 2019	8,589.9	$ 7,066.9	1,603.1	2,592.9	$ 1,563.1	1,024.9	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	576			276.2
Derivative hedging activity, net of tax	1.7			(0.1)
Ending balance (in shares) at Sep. 30, 2020		226,832,410			1
Ending balance at Sep. 30, 2020	8,784.2	$ 7,077	1,773.5	2,776.8	$ 1,563.1	1,209	4.7
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	367.5		364.5	147.7		147.7
Dividends declared on common stock	(114.5)		(114.5)
Derivative hedging activity, net of tax	1.4			(0.2)			(0.2)
Ending balance (in shares) at Sep. 30, 2020		226,832,410			1
Ending balance at Sep. 30, 2020	$ 8,784.2	$ 7,077	$ 1,773.5	$ 2,776.8	$ 1,563.1	$ 1,209	$ 4.7

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 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. September 30 December 31 Evergy (millions) Fuel inventory $ 153.7 $ 146.4 Supplies 358.4 335.2 Fuel inventory and supplies $ 512.1 $ 481.6 Evergy Kansas Central Fuel inventory $ 84.9 $ 80.2 Supplies 194.9 186.2 Fuel inventory and supplies $ 279.8 $ 266.4 Evergy Metro Fuel inventory $ 47.5 $ 46.1 Supplies 125.7 116.9 Fuel inventory and supplies $ 173.2 $ 163.0 Property, Plant and Equipment The following tables summarize the property, plant and equipment of Evergy, Evergy Kansas Central and Evergy Metro. September 30, 2020 Evergy Evergy Kansas Central Evergy Metro (millions) Electric plant in service $ 28,670.5 $ 13,947.2 $ 11,110.9 Electric plant acquisition adjustment 724.3 724.3 — Accumulated depreciation (10,849.4) (5,210.0) (4,487.3) Plant in service, net 18,545.4 9,461.5 6,623.6 Construction work in progress 946.6 527.1 337.6 Nuclear fuel, net 131.2 65.3 65.9 Plant to be retired, net (a) 0.9 0.9 — Property, plant and equipment, net $ 19,624.1 $ 10,054.8 $ 7,027.1 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 September 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 $ (13.7) $ (13.7) $ (43.7) $ (40.9) Other (6.4) (6.0) (14.0) (16.3) Other expense $ (20.1) $ (19.7) $ (57.7) $ (57.2) Evergy Kansas Central Non-service cost component of net benefit cost $ (4.1) $ (4.9) $ (14.1) $ (14.5) Other (5.6) (5.9) (12.8) (15.4) Other expense $ (9.7) $ (10.8) $ (26.9) $ (29.9) Evergy Metro Non-service cost component of net benefit cost $ (6.5) $ (5.0) $ (19.7) $ (15.3) Other (0.4) 0.1 (0.5) (0.4) Other expense $ (6.9) $ (4.9) $ (20.2) $ (15.7) 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 $ 367.5 $ 370.9 $ 576.0 $ 618.9 Less: Net income attributable to noncontrolling interests 3.0 4.1 8.7 12.9 Net income attributable to Evergy, Inc. $ 364.5 $ 366.8 $ 567.3 $ 606.0 Common Shares Outstanding Weighted average number of common shares outstanding - basic 227.3 234.6 227.2 243.5 Add: Effect of dilutive securities 0.2 0.4 0.3 0.3 Weighted average number of common shares outstanding - dilutive 227.5 235.0 227.5 243.8 Basic EPS $ 1.60 $ 1.56 $ 2.50 $ 2.49 Diluted EPS $ 1.60 $ 1.56 $ 2.49 $ 2.49 Anti-dilutive shares excluded from the computation of diluted EPS for the three months ended and year to date September 30, 2020, were 124,136 RSUs with performance measures. There were no anti-dilutive securities excluded from the computation of diluted EPS for the three months ended and year to date September 30, 2019. Dividends Declared In November 2020, Evergy's Board of Directors (Evergy Board) declared a quarterly dividend of $0.535 per share on Evergy's common stock. The common dividend is payable December 21, 2020, to shareholders of record as of November 20, 2020. In November 2020, Evergy Kansas Central's Board of Directors declared a cash dividend payable to Evergy of $40.0 million, payable on December 18, 2020. In November 2020, Evergy Metro's Board of Directors declared a cash dividend payable to Evergy of $40.0 million, payable on December 18, 2020. Supplemental Cash Flow Information Evergy Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 267.8 $ 240.8 Interest of VIEs 0.8 1.6 Income taxes, net of refunds (73.8) (13.1) Right-of-use assets obtained in exchange for new operating lease liabilities 4.1 3.0 Right-of-use assets obtained in exchange for new finance lease liabilities 5.0 2.3 Non-cash investing transactions: Property, plant and equipment additions 371.0 99.4 Non-cash financing transactions: Issuance of stock for compensation and reinvested dividends 0.9 (0.3) Evergy Kansas Central Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 114.1 $ 109.4 Interest of VIEs 0.8 1.6 Income taxes, net of refunds (6.4) 1.8 Right-of-use assets obtained in exchange for new operating lease liabilities 3.8 0.6 Right-of-use assets obtained in exchange for new finance lease liabilities 3.7 2.3 Non-cash investing transactions: Property, plant and equipment additions 183.8 35.3 Evergy Metro Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 73.3 $ 83.5 Income taxes, net of refunds (7.3) 32.8 Right-of-use assets obtained in exchange for new operating lease liabilities 0.3 2.4 Right-of-use assets obtained in exchange for new finance lease liabilities 1.3 — Non-cash investing transactions: Property, plant and equipment additions 165.6 60.8 Non-cash property, plant and equipment additions year to date September 30, 2020 for Evergy, Evergy Kansas Central and Evergy Metro include a non-cash addition related to the revision in estimate of the Wolf Creek Generating Station (Wolf Creek) asset retirement obligation (ARO) liability in the third quarter of 2020. See Note 6 for more details.

REVENUE

REVENUE	9 Months Ended
	Sep. 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 September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 636.4 $ 262.9 $ 241.2 Commercial 499.5 205.2 213.3 Industrial 166.8 105.7 36.6 Other retail 9.5 4.4 2.7 Total electric retail $ 1,312.2 $ 578.2 $ 493.8 Wholesale 85.0 68.7 9.7 Transmission 80.7 72.9 3.5 Industrial steam and other 5.6 0.9 0.8 Total revenue from contracts with customers $ 1,483.5 $ 720.7 $ 507.8 Other 34.1 12.9 20.7 Operating revenues $ 1,517.6 $ 733.6 $ 528.5 Year to Date September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 1,515.6 $ 627.5 $ 572.2 Commercial 1,272.9 511.0 558.1 Industrial 446.7 284.6 99.6 Other retail 29.2 13.3 8.9 Total electric retail $ 3,264.4 $ 1,436.4 $ 1,238.8 Wholesale 195.8 168.1 16.7 Transmission 238.5 215.2 10.4 Industrial steam and other 16.8 2.1 2.7 Total revenue from contracts with customers $ 3,715.5 $ 1,821.8 $ 1,268.6 Other 103.5 42.7 59.7 Operating revenues $ 3,819.0 $ 1,864.5 $ 1,328.3 Three Months Ended September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 653.0 $ 268.9 $ 249.2 Commercial 539.1 219.3 234.1 Industrial 175.3 111.3 40.8 Other retail 16.0 5.6 7.0 Total electric retail $ 1,383.4 $ 605.1 $ 531.1 Wholesale 96.3 67.7 23.5 Transmission 80.4 67.7 7.8 Industrial steam and other 6.2 1.7 0.6 Total revenue from contracts with customers $ 1,566.3 $ 742.2 $ 563.0 Other 11.3 6.8 5.8 Operating revenues $ 1,577.6 $ 749.0 $ 568.8 Year to Date September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 1,536.3 $ 640.4 $ 575.5 Commercial 1,391.2 556.4 613.5 Industrial 478.9 308.5 106.7 Other retail 35.3 15.8 12.3 Total electric retail $ 3,441.7 $ 1,521.1 $ 1,308.0 Wholesale 251.7 182.5 54.7 Transmission 233.5 205.5 14.0 Industrial steam and other 18.9 4.6 2.3 Total revenue from contracts with customers $ 3,945.8 $ 1,913.7 $ 1,379.0 Other 70.4 17.6 52.2 Operating revenues $ 4,016.2 $ 1,931.3 $ 1,431.2

RECEIVABLES

RECEIVABLES	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
RECEIVABLES	RECEIVABLES The Evergy Companies' receivables are detailed in the following table. September 30 December 31 Evergy (millions) Customer accounts receivable - billed $ 8.6 $ 7.2 Customer accounts receivable - unbilled 143.9 104.0 Other receivables 181.2 127.8 Allowance for credit losses (15.2) (10.5) Total $ 318.5 $ 228.5 Evergy Kansas Central Customer accounts receivable - billed $ — $ — Customer accounts receivable - unbilled 55.3 49.7 Other receivables 206.7 94.5 Allowance for credit losses (5.5) (3.8) Total $ 256.5 $ 140.4 Evergy Metro Customer accounts receivable - billed $ 4.9 $ 3.1 Customer accounts receivable - unbilled 56.9 26.5 Other receivables 24.7 23.1 Allowance for credit losses (6.5) (4.6) Total $ 80.0 $ 48.1 Evergy's, Evergy Kansas Central's and Evergy Metro's other receivables at September 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. September 30 December 31 (millions) Evergy $ 58.8 $ 42.0 Evergy Kansas Central 49.9 37.7 Evergy Metro 6.1 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. 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 15.5 22.4 Write-offs (20.8) (31.9) Recoveries of prior write-offs 10.0 9.2 Ending balance September 30 $ 15.2 $ 8.9 Evergy Kansas Central Beginning balance January 1 $ 3.8 $ 3.9 Credit loss expense 6.9 5.6 Write-offs (7.3) (8.8) Recoveries of prior write-offs 2.1 2.7 Ending balance September 30 $ 5.5 $ 3.4 Evergy Metro Beginning balance January 1 $ 4.6 $ 3.8 Credit loss expense 5.5 11.7 Write-offs (8.9) (16.2) Recoveries of prior write-offs 5.3 4.6 Ending balance September 30 $ 6.5 $ 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. September 30 December 31 (millions) Evergy $ 395.0 $ 339.0 Evergy Kansas Central 200.0 171.0 Evergy Metro 130.0 118.0 Each receivable sale facility expires in September 2021. 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 mid-October. 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 mid-November.

RATE MATTERS AND REGULATION

RATE MATTERS AND REGULATION	9 Months Ended
	Sep. 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 when compared to 2019. 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 when compared to 2019. 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 September 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 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 $18.3 million as of September 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 September 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. In October 2020, Evergy Metro and Evergy Missouri West entered into a non-unanimous stipulation and agreement with the MPSC staff and other intervenors that would allow Evergy Metro and Evergy Missouri West to defer to a regulatory asset certain net incremental costs incurred associated with the COVID-19 pandemic for consideration in their next rate cases. A decision by the MPSC regarding the non-unanimous stipulation and agreement is expected in January 2021. 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 Kansas Central's TFR, effective in January 2021, includes projected 2021 transmission capital expenditures and operating costs and is expected to increase annual transmission revenues by $32.4 million when compared to 2020. The increase was primarily driven by higher projected capital expenditures and a lower prior year true-up adjustment in 2021. 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. Evergy Metro's TFR, effective in January 2021, includes projected 2021 transmission capital expenditures and operating costs and is expected to decrease annual transmission revenues by $3.9 million when compared to 2020. 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	9 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL	GOODWILLAccounting 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.

ASSET RETIREMENT OBLIGATIONS

ASSET RETIREMENT OBLIGATIONS	9 Months Ended
	Sep. 30, 2020
Asset Retirement Obligation Disclosure [Abstract]
ASSET RETIREMENT OBLIGATIONS	ASSET RETIREMENT OBLIGATIONS AROs associated with tangible long-lived assets are legal obligations that exist under enacted laws, statutes and written or oral contracts, including obligations arising under the doctrine of promissory estoppel. These liabilities are recognized at estimated fair value as incurred with a corresponding amount capitalized as part of the cost of the related long-lived assets and depreciated over their useful lives. Accretion of the liabilities due to the passage of time is recorded to a regulatory asset and/or liability. Changes in the estimated fair values of the liabilities are recognized when known. Evergy Kansas Central, Evergy Metro and Evergy Missouri West have AROs related to asbestos abatement and the closure and post-closure care of ponds and landfills containing coal combustion residuals (CCRs). In addition, Evergy Kansas Central and Evergy Metro have AROs related to decommissioning Wolf Creek and the retirement of wind generation facilities. The MPSC and KCC require the owners of Wolf Creek, including Evergy Kansas South and Evergy Metro with their respective 47% ownership shares, to submit an updated decommissioning cost study every three years. The most recent study was submitted to the MPSC and KCC in September 2020. As a result of changes in estimates related to the study, Evergy, Evergy Kansas Central and Evergy Metro recorded increases to their AROs to decommission Wolf Creek of $259.1 million, $140.7 million and $118.4 million, respectively, in the third quarter of 2020. The following table summarizes the change in the Evergy Companies' AROs for the periods ending September 30, 2020 and December 31, 2019. Evergy Evergy Kansas Central Evergy Metro 2020 2019 2020 2019 2020 2019 (millions) Beginning balance January 1 $ 674.1 $ 687.1 $ 272.9 $ 281.1 $ 253.6 $ 261.0 Revision in timing and/or 257.0 (22.3) 136.9 (12.4) 118.4 (9.9) Settlements (11.0) (17.8) (2.1) (14.8) (2.7) (2.5) Accretion 28.7 27.1 14.2 19.0 12.1 5.0 Ending balance $ 948.8 $ 674.1 $ 421.9 $ 272.9 $ 381.4 $ 253.6 Less: current portion (66.5) (71.3) (23.3) (23.3) (33.0) (36.1) Total noncurrent asset $ 882.3 $ 602.8 $ 398.6 $ 249.6 $ 348.4 $ 217.5

PENSION PLANS AND POST-RETIREME

PENSION PLANS AND POST-RETIREMENT BENEFITS	9 Months Ended
	Sep. 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's defined benefit plans, consisting of Evergy Kansas South's and Evergy Metro's respective 47% ownership shares. For the majority of employees, pension benefits under these plans reflect the employees' compensation, years of service and age at retirement. However, for the plan covering Evergy Kansas Central's employees, the benefits for non-union employees hired between 2002 and the second quarter of 2018 and union employees hired beginning in 2012 are derived from a cash balance account formula. The plan was closed to future non-union employees in 2018. For the plans covering Evergy Metro's employees, the benefits for union employees hired beginning in 2014 are derived from a cash balance account formula and the plans were closed to future non-union employees in 2014. Evergy and its subsidiaries also provide certain post-retirement health care and life insurance benefits for substantially all retired employees of Evergy Kansas Central and Evergy Metro and their respective shares of Wolf Creek's post-retirement benefit plans. The Evergy Companies record pension and post-retirement expense in accordance with rate orders from the KCC and MPSC that allow the difference between pension and post-retirement costs under GAAP and costs for ratemaking to be recognized as a regulatory asset or liability. This difference between financial and regulatory accounting methods is due to timing and will be eliminated over the life of the plans. For the three months ended and year to date September 30, 2020, Evergy and Evergy Metro recorded pension settlement charges of $10.0 million and $12.7 million, respectively. For the three months ended and year to date September 30, 2019, Evergy and Evergy Metro recorded pension settlement charges of $14.5 million and $20.8 million, respectively. These settlement charges were the result of accelerated pension distributions related to voluntary severance programs. Evergy and Evergy Metro deferred substantially all of the charges to a regulatory asset and expect to recover these amounts over future periods pursuant to regulatory agreements. The following tables provide the components of net periodic benefit costs prior to the effects of capitalization and sharing with joint owners of power plants. Pension Benefits Post-Retirement Benefits Three Months Ended September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 20.1 $ 6.8 $ 13.3 $ 0.7 $ 0.3 $ 0.4 Interest cost 24.0 11.7 12.1 2.3 1.2 1.1 Expected return on plan assets (26.3) (13.3) (13.5) (2.4) (1.7) (0.7) Prior service cost 0.4 0.4 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 12.1 8.5 11.6 0.1 — (0.1) Settlement and special termination benefits 10.0 — 12.7 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 40.3 14.1 36.4 0.8 (0.1) 0.7 Regulatory adjustment (0.4) 0.4 (11.3) (1.0) (0.7) (0.2) Intercompany allocations — 1.6 (5.8) — 0.1 (0.1) Net periodic benefit costs (income) $ 39.9 $ 16.1 $ 19.3 $ (0.2) $ (0.7) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 59.2 $ 20.4 $ 38.8 $ 2.1 $ 0.9 $ 1.2 Interest cost 72.9 35.2 37.1 6.9 3.6 3.3 Expected return on plan assets (79.7) (39.9) (41.5) (7.0) (5.0) (2.0) Prior service cost 1.3 1.2 0.6 0.3 0.3 — Recognized net actuarial (gain)/loss 34.8 25.4 34.2 0.2 — (0.4) Settlement and special termination benefits 10.0 — 12.7 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 98.5 42.3 81.9 2.5 (0.2) 2.1 Regulatory adjustment 18.6 1.1 (9.2) (2.9) (2.1) (0.3) Intercompany allocations — (0.1) (17.0) — 0.1 (0.1) Net periodic benefit costs (income) $ 117.1 $ 43.3 $ 55.7 $ (0.4) $ (2.2) $ 1.7 Pension Benefits Post-Retirement Benefits Three Months Ended September 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 $ 7.3 $ 11.8 $ 0.6 $ 0.2 $ 0.4 Interest cost 27.5 13.4 14.1 2.6 1.4 1.2 Expected return on plan assets (27.0) (13.7) (12.3) (2.5) (1.7) (0.8) Prior service cost 0.5 0.5 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 6.9 6.2 12.2 (0.3) (0.1) (0.3) Settlement and special termination benefits 14.5 — 20.8 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 41.5 13.7 46.8 0.5 (0.1) 0.5 Regulatory adjustment 4.9 0.5 (14.7) (0.8) (0.7) 0.1 Intercompany allocations — — (13.6) — — (0.2) Net periodic benefit costs (income) $ 46.4 $ 14.2 $ 18.5 $ (0.3) $ (0.8) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 57.3 $ 21.8 $ 35.5 $ 1.9 $ 0.8 $ 1.1 Interest cost 82.4 40.3 42.1 7.9 4.2 3.7 Expected return on plan assets (80.9) (41.1) (36.9) (7.5) (5.0) (2.5) Prior service cost 1.5 1.3 0.7 0.3 0.3 — Recognized net actuarial (gain)/loss 20.6 19.0 36.7 (0.9) (0.4) (1.1) Settlement and special termination benefits 14.5 — 20.8 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 95.4 41.3 98.9 1.7 (0.1) 1.2 Regulatory adjustment 30.4 1.5 (15.9) (2.5) (2.2) 0.3 Intercompany allocations — — (27.6) — — (0.3) Net periodic benefit costs (income) $ 125.8 $ 42.8 $ 55.4 $ (0.8) $ (2.3) $ 1.2 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 September 30, 2020, Evergy, Evergy Kansas Central and Evergy Metro made pension contributions of $54.3 million, $45.7 million and $8.6 million, respectively. Evergy expects to make additional pension contributions of $78.4 million in 2020 to satisfy the Employee Retirement Income Security Act of 1974, as amended (ERISA) funding requirements and KCC and MPSC rate orders, which is expected to be paid by Evergy Metro. Year to date September 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	9 Months Ended
	Sep. 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 September 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 September 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 September 30, 2020 (millions) Evergy, Inc. $ 450.0 n/a $ 0.7 $ 200.0 $ 249.3 1.42% Evergy Kansas Central 1,000.0 — 18.6 — 981.4 —% Evergy Metro 600.0 — — — 600.0 —% Evergy Missouri West 450.0 — 2.0 — 448.0 —% Evergy $ 2,500.0 $ — $ 21.3 $ 200.0 $ 2,278.7 December 31, 2019 Evergy, Inc. $ 450.0 n/a $ 0.7 $ 20.0 $ 429.3 2.99% Evergy Kansas Central 1,000.0 249.2 14.2 — 736.6 2.07% Evergy Metro 600.0 199.3 — — 400.7 2.02% Evergy Missouri West 450.0 93.4 2.1 — 354.5 2.02% Evergy $ 2,500.0 $ 541.9 $ 17.0 $ 20.0 $ 1,921.1

LONG-TERM DEBT

LONG-TERM DEBT	9 Months Ended
	Sep. 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	9 Months Ended
	Sep. 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 September 30, 2020, $1.8 million and ($0.4) million were reclassified from accumulated other comprehensive loss to interest expense and income tax expense, respectively, on Evergy's consolidated statements of comprehensive income. Year to date September 30, 2020, $5.3 million and ($3.6) 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 September 30, 2020, Evergy expects to amortize $5.3 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. September 30, 2020 December 31, 2019 Book Value Fair Value Book Value Fair Value Long-term debt (a) (millions) Evergy (b) $ 9,629.9 $ 11,126.4 $ 8,997.8 $ 9,750.2 Evergy Kansas Central 3,931.1 4,711.5 3,686.1 4,078.8 Evergy Metro 2,922.7 3,555.6 2,525.0 2,932.2 Long-term debt of variable interest entities (a) Evergy $ 18.8 $ 19.3 $ 51.1 $ 51.5 Evergy Kansas Central 18.8 19.3 51.1 51.5 (a) Includes current maturities. (b) Book value as of September 30, 2020 and December 31, 2019, includes $114.1 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 September 30, 2020 Level 1 Level 2 Level 3 NAV Evergy Kansas Central (millions) Assets Nuclear decommissioning trust (a) Domestic equity funds $ 90.9 $ 83.5 $ — $ — $ 7.4 International equity funds 55.2 55.2 — — — Core bond fund 39.6 39.6 — — — High-yield bond fund 23.0 23.0 — — — Emerging markets bond fund 18.8 18.8 — — — Combination debt/equity/other fund 18.2 18.2 — — — Alternative investments fund 20.2 — — — 20.2 Real estate securities fund 12.8 — — — 12.8 Cash equivalents 0.4 0.4 — — — Total nuclear decommissioning trust 279.1 238.7 — — 40.4 Rabbi trust Core bond fund 25.3 — — — 25.3 Combination debt/equity/other fund 6.3 — — — 6.3 Cash equivalents 0.2 0.2 — — — Total rabbi trust 31.8 0.2 — — 31.6 Total $ 310.9 $ 238.9 $ — $ — $ 72.0 Evergy Metro Assets Nuclear decommissioning trust (a) Equity securities $ 208.0 $ 208.0 $ — $ — $ — Debt securities U.S. Treasury 48.1 48.1 — — — U.S. Agency 0.5 — 0.5 — — State and local obligations 3.7 — 3.7 — — Corporate bonds 40.9 — 40.9 — — Foreign governments 0.1 — 0.1 — — Cash equivalents 7.1 7.1 — — — Other — — — — — Total nuclear decommissioning trust 308.4 263.2 45.2 — — Self-insured health plan trust (b) Equity securities 1.1 1.1 — — — Debt securities 8.6 3.2 5.4 — — Cash and cash equivalents 3.3 3.3 — — — Total self-insured health plan trust 13.0 7.6 5.4 — — Total $ 321.4 $ 270.8 $ 50.6 $ — $ — Other Evergy Assets Rabbi trusts Fixed income fund $ 13.1 $ — $ — $ — $ 13.1 Cash and cash equivalents 0.6 0.6 — — — Total rabbi trusts $ 13.7 $ 0.6 $ — $ — $ 13.1 Evergy Assets Nuclear decommissioning trust (a) $ 587.5 $ 501.9 $ 45.2 $ — $ 40.4 Rabbi trusts 45.5 0.8 — — 44.7 Self-insured health plan trust (b) 13.0 7.6 5.4 — — Total $ 646.0 $ 510.3 $ 50.6 $ — $ 85.1 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. September 30, 2020 December 31, 2019 September 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 $ 7.4 $ 2.5 $ 7.5 $ 3.3 (a) (a) Alternative investments fund (b) 20.2 — 23.9 — Quarterly 65 days Real estate securities fund (b) 12.8 — 12.6 — Quarterly 65 days Total $ 40.4 $ 2.5 $ 44.0 $ 3.3 Rabbi trust: Core bond fund $ 25.3 $ — $ 25.3 $ — (c) (c) Combination debt/equity/other fund 6.3 — 6.3 — (c) (c) Total $ 31.6 $ — $ 31.6 $ — Other Evergy Rabbi trust: Fixed income fund $ 13.1 $ — $ 13.3 $ — (c) (c) Total Evergy investments at NAV $ 85.1 $ 2.5 $ 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 is 15 years, 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 $ 27.5 $ (0.3) $ (8.5) $ 50.9 Nuclear decommissioning trust - debt securities 0.1 1.5 5.4 5.9 Rabbi trusts - equity securities 0.8 0.9 1.6 2.4 Total $ 28.4 $ 2.1 $ (1.5) $ 59.2 Evergy Kansas Central Nuclear decommissioning trust - equity securities $ 16.2 $ 0.2 $ 0.2 $ 26.2 Rabbi trust - equity securities 0.6 0.5 1.1 2.7 Total $ 16.8 $ 0.7 $ 1.3 $ 28.9 Evergy Metro Nuclear decommissioning trust - equity securities $ 11.3 $ (0.5) $ (8.7) $ 24.7 Nuclear decommissioning trust - debt securities 0.1 1.5 5.4 5.9 Total $ 11.4 $ 1.0 $ (3.3) $ 30.6

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	9 Months Ended
	Sep. 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, regulations, interpretations and actions can also change, restrict or otherwise impact the Evergy Companies' operations or financial results. The failure to comply with these laws, regulations, interpretations and actions could result in the assessment of administrative, civil and criminal penalties and the imposition of remedial requirements. The Evergy Companies believe that all 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. In October 2020, the EPA issued a proposed rule to modify the CSAPR Update Rule. The proposed rule finds that nine of the states subject to the CSAPR Update Rule, including Kansas and Missouri, do not significantly contribute to downwind states' ability to achieve attainment during the ozone season. Evergy will continue to monitor this proposed rule as any changes to NO x ozone season allowances in the future could have a material impact on the Evergy Companies' operations and consolidated financial results. 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 October 2020, the EPA published the final ELG reconsideration rule. This rule adjusts numeric limits for flue gas desulfurization (FGD) wastewater and adds a 10% volumetric purge limit for bottom ash transport water. The timeline for final FGD wastewater compliance is now as soon as possible on or after one year following publication of the final rule in the Federal Register but no later than December 31, 2025. The Evergy Companies are in the process of reviewing the 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 August 2020, the EPA published the Part A CCR Rule. This rule 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 un-lined impoundments to initiate closure. In October 2020, the EPA released a pre-publication version of the final Part B CCR Rule. This rule includes a process to allow un-lined impoundments to continue to operate if a demonstration is made to prove that the un-lined impoundments are not adversely impacting groundwater, human health or the environment. 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 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.

RELATED PARTY TRANSACTIONS AND

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS	9 Months Ended
	Sep. 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 Employees of Evergy Kansas Central and Evergy Metro manage Evergy Missouri West's business and operate its facilities at cost, including Evergy Missouri West's 18% ownership interest in Evergy Metro's Iatan Nos. 1 and 2. Employees of Evergy Kansas Central manage Jeffrey Energy Center (JEC) and operate its facilities at cost, including Evergy Missouri West's 8% ownership interest in JEC. Employees of Evergy Metro manage La Cygne Station and operate its facilities at cost, including Evergy Kansas Central's 50% interest in La Cygne Station. Employees of Evergy Metro and Evergy Kansas Central also provide one another with shared service support, including costs related to human resources, information technology, accounting and legal services. The operating expenses and capital costs billed for jointly-owned plants and shared services are detailed in the following table. Three Months Ended September 30 Year to Date 2020 2019 2020 2019 (millions) Evergy Kansas Central billings to Evergy Missouri West $ 13.1 $ 4.5 $ 27.4 $ 17.2 Evergy Metro billings to Evergy Missouri West 46.5 41.6 121.8 125.8 Evergy Kansas Central billings to Evergy Metro 5.4 9.7 24.9 26.0 Evergy Metro billings to Evergy Kansas Central 26.9 33.0 94.5 108.8 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 September 30, 2020, Evergy Metro had a $78.0 million outstanding receivable from Evergy Missouri West and no outstanding payables under the money pool. At 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. September 30 December 31 2020 2019 Evergy Kansas Central (millions) Net receivable from (payable to) Evergy $ (0.2) $ 6.9 Net payable to Evergy Metro (15.4) (14.9) Net receivable from Evergy Missouri West 4.5 3.1 Evergy Metro Net receivable from (payable to) Evergy $ 16.1 $ (4.3) Net receivable from Evergy Kansas Central 15.4 14.9 Net receivable from Evergy Missouri West 160.0 78.7 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 September 30, 2020 and December 31, 2019, Evergy Kansas Central had income taxes receivable from Evergy of $29.3 million and $37.9 million, respectively. As of September 30, 2020 and December 31, 2019, Evergy Metro had income taxes payable to Evergy of $0.6 million and $14.1 million, respectively. Leases Evergy Metro leases certain transmission equipment from Evergy Kansas Central. This lease was entered into prior to the merger in an arms-length transaction and is accounted for as an operating lease. The right-of-use asset related to this lease is recorded within other long-term assets and the current and long-term lease liabilities are recorded within other current liabilities and other long-term liabilities, respectively, on the consolidated balance sheet. The assets and liabilities related to this lease between Evergy Kansas Central and Evergy Metro are eliminated at consolidated Evergy. As of September 30, 2020, Evergy Metro had a right-of-use asset of $29.1 million, a current lease liability of $0.7 million and a long-term lease liability of $28.4 million on its consolidated balance sheet related to this lease. As of December 31, 2019, Evergy Metro had a right-of-use asset of $29.5 million, a current lease liability of $0.6 million and a long-term lease liability of $28.9 million on its consolidated balance sheet related to this lease.

TAXES

TAXES	9 Months Ended
	Sep. 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 $ (16.4) $ (31.2) $ (35.0) $ (10.6) State (0.4) (0.8) (7.7) (1.6) Total (16.8) (32.0) (42.7) (12.2) Deferred income taxes Federal 46.6 75.5 83.4 78.0 State 21.5 23.0 57.7 36.5 Total 68.1 98.5 141.1 114.5 Investment tax credit amortization (1.3) (1.0) (4.6) (3.1) Income tax expense $ 50.0 $ 65.5 $ 93.8 $ 99.2 Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (4.6) $ 11.2 $ 7.5 $ 39.1 State (6.4) (1.2) (13.3) (2.4) Total (11.0) 10.0 (5.8) 36.7 Deferred income taxes Federal 17.9 4.6 (10.7) (9.3) State 16.6 12.0 169.4 21.1 Total 34.5 16.6 158.7 11.8 Investment tax credit amortization (1.0) (0.8) (3.7) (2.3) Income tax expense $ 22.5 $ 25.8 $ 149.2 $ 46.2 Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (8.9) $ (2.2) $ (8.4) $ 32.1 State 9.5 3.9 10.5 9.3 Total 0.6 1.7 2.1 41.4 Deferred income taxes Federal 22.2 26.3 38.9 1.4 State 2.6 4.5 (35.1) 1.9 Total 24.8 30.8 3.8 3.3 Investment tax credit amortization (0.3) (0.3) (0.8) (0.8) Income tax expense $ 25.1 $ 32.2 $ 5.1 $ 43.9 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) (1.6) (1.6) (1.7) State income taxes 3.5 4.0 3.4 3.9 Flow through depreciation for plant-related differences (4.9) (3.1) (4.8) (3.2) Federal tax credits (4.6) (3.9) (4.6) (3.9) Non-controlling interest (0.3) (0.4) (0.3) (0.4) AFUDC equity (0.2) — (0.3) — Amortization of federal investment tax credits (0.7) (0.5) (0.7) (0.5) Changes in uncertain tax positions, net — (0.4) — (0.3) State tax rate change — — 2.0 — Valuation allowance (0.4) — (0.2) (1.1) Stock compensation — 0.3 (0.1) 0.2 Officer compensation limitation 0.2 0.1 0.2 0.1 Other — (0.5) — (0.3) Effective income tax rate 12.0 % 15.0 % 14.0 % 13.8 % 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 (2.9) (2.8) (2.9) (3.0) State income taxes 2.3 4.4 2.9 4.2 Flow through depreciation for plant-related differences (0.4) 0.8 (0.2) 0.5 Federal tax credits (6.8) (6.2) (6.8) (6.1) Non-controlling interest (0.7) (0.8) (0.6) (0.8) AFUDC equity 0.1 (0.1) (0.4) (0.1) Amortization of federal investment tax credits (1.1) (0.7) (1.0) (0.7) Changes in uncertain tax positions, net — (0.9) — (0.5) State tax rate change — — 32.0 — Valuation allowance — — — (0.5) Stock compensation — — (0.1) (0.1) Other — (1.4) — (0.7) Effective income tax rate 11.5 % 13.3 % 43.9 % 13.2 % 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 (0.2) (0.1) (0.2) (0.1) State income taxes 5.5 3.6 4.5 3.2 Flow through depreciation for plant-related differences (9.1) (6.1) (9.1) (6.1) Federal tax credits (2.4) (1.3) (2.4) (1.4) AFUDC equity (0.5) — (0.3) — Amortization of federal investment tax credits (0.4) (0.3) (0.4) (0.3) State tax rate change — — (11.4) — Stock compensation — — (0.4) — Officer compensation limitation 0.5 0.3 0.5 0.3 Other 0.1 0.4 — (0.4) Effective income tax rate 14.5 % 17.5 % 1.8 % 16.2 % Tax Reform In May 2020, the state of Kansas exempted certain public utilities, including Evergy Kansas Central and Evergy Metro, from Kansas corporate income tax beginning in 2021 and authorized 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 the state of Kansas takes effect. In accordance with the provisions of the income tax exemption, 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)	9 Months Ended
	Sep. 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.
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 SuppliesThe Evergy Companies record fuel inventory and supplies at average cost.
Earnings Per Share	Earnings Per Share To compute basic earnings per share (EPS), Evergy divides net income attributable to Evergy, Inc. by the weighted average number of common shares outstanding. Diluted EPS includes the effect of issuable common shares resulting from restricted share units (RSUs), performance shares and restricted stock. Evergy computes the dilutive effects of potential issuances of common shares using the treasury stock method.

ORGANIZATION AND BASIS OF PRE_3

ORGANIZATION AND BASIS OF PRESENTATION (Tables)	9 Months Ended
	Sep. 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. September 30 December 31 Evergy (millions) Fuel inventory $ 153.7 $ 146.4 Supplies 358.4 335.2 Fuel inventory and supplies $ 512.1 $ 481.6 Evergy Kansas Central Fuel inventory $ 84.9 $ 80.2 Supplies 194.9 186.2 Fuel inventory and supplies $ 279.8 $ 266.4 Evergy Metro Fuel inventory $ 47.5 $ 46.1 Supplies 125.7 116.9 Fuel inventory and supplies $ 173.2 $ 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. September 30, 2020 Evergy Evergy Kansas Central Evergy Metro (millions) Electric plant in service $ 28,670.5 $ 13,947.2 $ 11,110.9 Electric plant acquisition adjustment 724.3 724.3 — Accumulated depreciation (10,849.4) (5,210.0) (4,487.3) Plant in service, net 18,545.4 9,461.5 6,623.6 Construction work in progress 946.6 527.1 337.6 Nuclear fuel, net 131.2 65.3 65.9 Plant to be retired, net (a) 0.9 0.9 — Property, plant and equipment, net $ 19,624.1 $ 10,054.8 $ 7,027.1 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 September 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 $ (13.7) $ (13.7) $ (43.7) $ (40.9) Other (6.4) (6.0) (14.0) (16.3) Other expense $ (20.1) $ (19.7) $ (57.7) $ (57.2) Evergy Kansas Central Non-service cost component of net benefit cost $ (4.1) $ (4.9) $ (14.1) $ (14.5) Other (5.6) (5.9) (12.8) (15.4) Other expense $ (9.7) $ (10.8) $ (26.9) $ (29.9) Evergy Metro Non-service cost component of net benefit cost $ (6.5) $ (5.0) $ (19.7) $ (15.3) Other (0.4) 0.1 (0.5) (0.4) Other expense $ (6.9) $ (4.9) $ (20.2) $ (15.7)
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 $ 367.5 $ 370.9 $ 576.0 $ 618.9 Less: Net income attributable to noncontrolling interests 3.0 4.1 8.7 12.9 Net income attributable to Evergy, Inc. $ 364.5 $ 366.8 $ 567.3 $ 606.0 Common Shares Outstanding Weighted average number of common shares outstanding - basic 227.3 234.6 227.2 243.5 Add: Effect of dilutive securities 0.2 0.4 0.3 0.3 Weighted average number of common shares outstanding - dilutive 227.5 235.0 227.5 243.8 Basic EPS $ 1.60 $ 1.56 $ 2.50 $ 2.49 Diluted EPS $ 1.60 $ 1.56 $ 2.49 $ 2.49
Supplemental Cash Flow Information	Supplemental Cash Flow Information Evergy Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 267.8 $ 240.8 Interest of VIEs 0.8 1.6 Income taxes, net of refunds (73.8) (13.1) Right-of-use assets obtained in exchange for new operating lease liabilities 4.1 3.0 Right-of-use assets obtained in exchange for new finance lease liabilities 5.0 2.3 Non-cash investing transactions: Property, plant and equipment additions 371.0 99.4 Non-cash financing transactions: Issuance of stock for compensation and reinvested dividends 0.9 (0.3) Evergy Kansas Central Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 114.1 $ 109.4 Interest of VIEs 0.8 1.6 Income taxes, net of refunds (6.4) 1.8 Right-of-use assets obtained in exchange for new operating lease liabilities 3.8 0.6 Right-of-use assets obtained in exchange for new finance lease liabilities 3.7 2.3 Non-cash investing transactions: Property, plant and equipment additions 183.8 35.3 Evergy Metro Year to Date September 30 2020 2019 Cash paid for (received from): (millions) Interest, net of amounts capitalized $ 73.3 $ 83.5 Income taxes, net of refunds (7.3) 32.8 Right-of-use assets obtained in exchange for new operating lease liabilities 0.3 2.4 Right-of-use assets obtained in exchange for new finance lease liabilities 1.3 — Non-cash investing transactions: Property, plant and equipment additions 165.6 60.8

REVENUE (Tables)

REVENUE (Tables)	9 Months Ended
	Sep. 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 September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 636.4 $ 262.9 $ 241.2 Commercial 499.5 205.2 213.3 Industrial 166.8 105.7 36.6 Other retail 9.5 4.4 2.7 Total electric retail $ 1,312.2 $ 578.2 $ 493.8 Wholesale 85.0 68.7 9.7 Transmission 80.7 72.9 3.5 Industrial steam and other 5.6 0.9 0.8 Total revenue from contracts with customers $ 1,483.5 $ 720.7 $ 507.8 Other 34.1 12.9 20.7 Operating revenues $ 1,517.6 $ 733.6 $ 528.5 Year to Date September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 1,515.6 $ 627.5 $ 572.2 Commercial 1,272.9 511.0 558.1 Industrial 446.7 284.6 99.6 Other retail 29.2 13.3 8.9 Total electric retail $ 3,264.4 $ 1,436.4 $ 1,238.8 Wholesale 195.8 168.1 16.7 Transmission 238.5 215.2 10.4 Industrial steam and other 16.8 2.1 2.7 Total revenue from contracts with customers $ 3,715.5 $ 1,821.8 $ 1,268.6 Other 103.5 42.7 59.7 Operating revenues $ 3,819.0 $ 1,864.5 $ 1,328.3 Three Months Ended September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 653.0 $ 268.9 $ 249.2 Commercial 539.1 219.3 234.1 Industrial 175.3 111.3 40.8 Other retail 16.0 5.6 7.0 Total electric retail $ 1,383.4 $ 605.1 $ 531.1 Wholesale 96.3 67.7 23.5 Transmission 80.4 67.7 7.8 Industrial steam and other 6.2 1.7 0.6 Total revenue from contracts with customers $ 1,566.3 $ 742.2 $ 563.0 Other 11.3 6.8 5.8 Operating revenues $ 1,577.6 $ 749.0 $ 568.8 Year to Date September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Revenues (millions) Residential $ 1,536.3 $ 640.4 $ 575.5 Commercial 1,391.2 556.4 613.5 Industrial 478.9 308.5 106.7 Other retail 35.3 15.8 12.3 Total electric retail $ 3,441.7 $ 1,521.1 $ 1,308.0 Wholesale 251.7 182.5 54.7 Transmission 233.5 205.5 14.0 Industrial steam and other 18.9 4.6 2.3 Total revenue from contracts with customers $ 3,945.8 $ 1,913.7 $ 1,379.0 Other 70.4 17.6 52.2 Operating revenues $ 4,016.2 $ 1,931.3 $ 1,431.2

RECEIVABLES (Tables)

RECEIVABLES (Tables)	9 Months Ended
	Sep. 30, 2020
Receivables [Abstract]
Schedule of Receivables	The Evergy Companies' receivables are detailed in the following table. September 30 December 31 Evergy (millions) Customer accounts receivable - billed $ 8.6 $ 7.2 Customer accounts receivable - unbilled 143.9 104.0 Other receivables 181.2 127.8 Allowance for credit losses (15.2) (10.5) Total $ 318.5 $ 228.5 Evergy Kansas Central Customer accounts receivable - billed $ — $ — Customer accounts receivable - unbilled 55.3 49.7 Other receivables 206.7 94.5 Allowance for credit losses (5.5) (3.8) Total $ 256.5 $ 140.4 Evergy Metro Customer accounts receivable - billed $ 4.9 $ 3.1 Customer accounts receivable - unbilled 56.9 26.5 Other receivables 24.7 23.1 Allowance for credit losses (6.5) (4.6) Total $ 80.0 $ 48.1 September 30 December 31 (millions) Evergy $ 58.8 $ 42.0 Evergy Kansas Central 49.9 37.7 Evergy Metro 6.1 1.2 September 30 December 31 (millions) Evergy $ 395.0 $ 339.0 Evergy Kansas Central 200.0 171.0 Evergy Metro 130.0 118.0
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 15.5 22.4 Write-offs (20.8) (31.9) Recoveries of prior write-offs 10.0 9.2 Ending balance September 30 $ 15.2 $ 8.9 Evergy Kansas Central Beginning balance January 1 $ 3.8 $ 3.9 Credit loss expense 6.9 5.6 Write-offs (7.3) (8.8) Recoveries of prior write-offs 2.1 2.7 Ending balance September 30 $ 5.5 $ 3.4 Evergy Metro Beginning balance January 1 $ 4.6 $ 3.8 Credit loss expense 5.5 11.7 Write-offs (8.9) (16.2) Recoveries of prior write-offs 5.3 4.6 Ending balance September 30 $ 6.5 $ 3.9

ASSET RETIREMENT OBLIGATIONS (T

ASSET RETIREMENT OBLIGATIONS (Tables)	9 Months Ended
	Sep. 30, 2020
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Change in Asset Retirement Obligation	The following table summarizes the change in the Evergy Companies' AROs for the periods ending September 30, 2020 and December 31, 2019. Evergy Evergy Kansas Central Evergy Metro 2020 2019 2020 2019 2020 2019 (millions) Beginning balance January 1 $ 674.1 $ 687.1 $ 272.9 $ 281.1 $ 253.6 $ 261.0 Revision in timing and/or 257.0 (22.3) 136.9 (12.4) 118.4 (9.9) Settlements (11.0) (17.8) (2.1) (14.8) (2.7) (2.5) Accretion 28.7 27.1 14.2 19.0 12.1 5.0 Ending balance $ 948.8 $ 674.1 $ 421.9 $ 272.9 $ 381.4 $ 253.6 Less: current portion (66.5) (71.3) (23.3) (23.3) (33.0) (36.1) Total noncurrent asset $ 882.3 $ 602.8 $ 398.6 $ 249.6 $ 348.4 $ 217.5

PENSION PLANS AND POST-RETIRE_2

PENSION PLANS AND POST-RETIREMENT BENEFITS (Tables)	9 Months Ended
	Sep. 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 September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 20.1 $ 6.8 $ 13.3 $ 0.7 $ 0.3 $ 0.4 Interest cost 24.0 11.7 12.1 2.3 1.2 1.1 Expected return on plan assets (26.3) (13.3) (13.5) (2.4) (1.7) (0.7) Prior service cost 0.4 0.4 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 12.1 8.5 11.6 0.1 — (0.1) Settlement and special termination benefits 10.0 — 12.7 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 40.3 14.1 36.4 0.8 (0.1) 0.7 Regulatory adjustment (0.4) 0.4 (11.3) (1.0) (0.7) (0.2) Intercompany allocations — 1.6 (5.8) — 0.1 (0.1) Net periodic benefit costs (income) $ 39.9 $ 16.1 $ 19.3 $ (0.2) $ (0.7) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date September 30, 2020 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 59.2 $ 20.4 $ 38.8 $ 2.1 $ 0.9 $ 1.2 Interest cost 72.9 35.2 37.1 6.9 3.6 3.3 Expected return on plan assets (79.7) (39.9) (41.5) (7.0) (5.0) (2.0) Prior service cost 1.3 1.2 0.6 0.3 0.3 — Recognized net actuarial (gain)/loss 34.8 25.4 34.2 0.2 — (0.4) Settlement and special termination benefits 10.0 — 12.7 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 98.5 42.3 81.9 2.5 (0.2) 2.1 Regulatory adjustment 18.6 1.1 (9.2) (2.9) (2.1) (0.3) Intercompany allocations — (0.1) (17.0) — 0.1 (0.1) Net periodic benefit costs (income) $ 117.1 $ 43.3 $ 55.7 $ (0.4) $ (2.2) $ 1.7 Pension Benefits Post-Retirement Benefits Three Months Ended September 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 $ 7.3 $ 11.8 $ 0.6 $ 0.2 $ 0.4 Interest cost 27.5 13.4 14.1 2.6 1.4 1.2 Expected return on plan assets (27.0) (13.7) (12.3) (2.5) (1.7) (0.8) Prior service cost 0.5 0.5 0.2 0.1 0.1 — Recognized net actuarial (gain)/loss 6.9 6.2 12.2 (0.3) (0.1) (0.3) Settlement and special termination benefits 14.5 — 20.8 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 41.5 13.7 46.8 0.5 (0.1) 0.5 Regulatory adjustment 4.9 0.5 (14.7) (0.8) (0.7) 0.1 Intercompany allocations — — (13.6) — — (0.2) Net periodic benefit costs (income) $ 46.4 $ 14.2 $ 18.5 $ (0.3) $ (0.8) $ 0.4 Pension Benefits Post-Retirement Benefits Year to Date September 30, 2019 Evergy Evergy Kansas Central Evergy Metro Evergy Evergy Kansas Central Evergy Metro Components of net periodic benefit costs (millions) Service cost $ 57.3 $ 21.8 $ 35.5 $ 1.9 $ 0.8 $ 1.1 Interest cost 82.4 40.3 42.1 7.9 4.2 3.7 Expected return on plan assets (80.9) (41.1) (36.9) (7.5) (5.0) (2.5) Prior service cost 1.5 1.3 0.7 0.3 0.3 — Recognized net actuarial (gain)/loss 20.6 19.0 36.7 (0.9) (0.4) (1.1) Settlement and special termination benefits 14.5 — 20.8 — — — Net periodic benefit costs before regulatory adjustment and intercompany allocations 95.4 41.3 98.9 1.7 (0.1) 1.2 Regulatory adjustment 30.4 1.5 (15.9) (2.5) (2.2) 0.3 Intercompany allocations — — (27.6) — — (0.3) Net periodic benefit costs (income) $ 125.8 $ 42.8 $ 55.4 $ (0.8) $ (2.3) $ 1.2

SHORT-TERM BORROWINGS AND SHO_2

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT (Tables)	9 Months Ended
	Sep. 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 September 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 September 30, 2020 (millions) Evergy, Inc. $ 450.0 n/a $ 0.7 $ 200.0 $ 249.3 1.42% Evergy Kansas Central 1,000.0 — 18.6 — 981.4 —% Evergy Metro 600.0 — — — 600.0 —% Evergy Missouri West 450.0 — 2.0 — 448.0 —% Evergy $ 2,500.0 $ — $ 21.3 $ 200.0 $ 2,278.7 December 31, 2019 Evergy, Inc. $ 450.0 n/a $ 0.7 $ 20.0 $ 429.3 2.99% Evergy Kansas Central 1,000.0 249.2 14.2 — 736.6 2.07% Evergy Metro 600.0 199.3 — — 400.7 2.02% Evergy Missouri West 450.0 93.4 2.1 — 354.5 2.02% Evergy $ 2,500.0 $ 541.9 $ 17.0 $ 20.0 $ 1,921.1

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	9 Months Ended
	Sep. 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. September 30, 2020 December 31, 2019 Book Value Fair Value Book Value Fair Value Long-term debt (a) (millions) Evergy (b) $ 9,629.9 $ 11,126.4 $ 8,997.8 $ 9,750.2 Evergy Kansas Central 3,931.1 4,711.5 3,686.1 4,078.8 Evergy Metro 2,922.7 3,555.6 2,525.0 2,932.2 Long-term debt of variable interest entities (a) Evergy $ 18.8 $ 19.3 $ 51.1 $ 51.5 Evergy Kansas Central 18.8 19.3 51.1 51.5 (a) Includes current maturities. (b) Book value as of September 30, 2020 and December 31, 2019, includes $114.1 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 September 30, 2020 Level 1 Level 2 Level 3 NAV Evergy Kansas Central (millions) Assets Nuclear decommissioning trust (a) Domestic equity funds $ 90.9 $ 83.5 $ — $ — $ 7.4 International equity funds 55.2 55.2 — — — Core bond fund 39.6 39.6 — — — High-yield bond fund 23.0 23.0 — — — Emerging markets bond fund 18.8 18.8 — — — Combination debt/equity/other fund 18.2 18.2 — — — Alternative investments fund 20.2 — — — 20.2 Real estate securities fund 12.8 — — — 12.8 Cash equivalents 0.4 0.4 — — — Total nuclear decommissioning trust 279.1 238.7 — — 40.4 Rabbi trust Core bond fund 25.3 — — — 25.3 Combination debt/equity/other fund 6.3 — — — 6.3 Cash equivalents 0.2 0.2 — — — Total rabbi trust 31.8 0.2 — — 31.6 Total $ 310.9 $ 238.9 $ — $ — $ 72.0 Evergy Metro Assets Nuclear decommissioning trust (a) Equity securities $ 208.0 $ 208.0 $ — $ — $ — Debt securities U.S. Treasury 48.1 48.1 — — — U.S. Agency 0.5 — 0.5 — — State and local obligations 3.7 — 3.7 — — Corporate bonds 40.9 — 40.9 — — Foreign governments 0.1 — 0.1 — — Cash equivalents 7.1 7.1 — — — Other — — — — — Total nuclear decommissioning trust 308.4 263.2 45.2 — — Self-insured health plan trust (b) Equity securities 1.1 1.1 — — — Debt securities 8.6 3.2 5.4 — — Cash and cash equivalents 3.3 3.3 — — — Total self-insured health plan trust 13.0 7.6 5.4 — — Total $ 321.4 $ 270.8 $ 50.6 $ — $ — Other Evergy Assets Rabbi trusts Fixed income fund $ 13.1 $ — $ — $ — $ 13.1 Cash and cash equivalents 0.6 0.6 — — — Total rabbi trusts $ 13.7 $ 0.6 $ — $ — $ 13.1 Evergy Assets Nuclear decommissioning trust (a) $ 587.5 $ 501.9 $ 45.2 $ — $ 40.4 Rabbi trusts 45.5 0.8 — — 44.7 Self-insured health plan trust (b) 13.0 7.6 5.4 — — Total $ 646.0 $ 510.3 $ 50.6 $ — $ 85.1 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. September 30, 2020 December 31, 2019 September 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 $ 7.4 $ 2.5 $ 7.5 $ 3.3 (a) (a) Alternative investments fund (b) 20.2 — 23.9 — Quarterly 65 days Real estate securities fund (b) 12.8 — 12.6 — Quarterly 65 days Total $ 40.4 $ 2.5 $ 44.0 $ 3.3 Rabbi trust: Core bond fund $ 25.3 $ — $ 25.3 $ — (c) (c) Combination debt/equity/other fund 6.3 — 6.3 — (c) (c) Total $ 31.6 $ — $ 31.6 $ — Other Evergy Rabbi trust: Fixed income fund $ 13.1 $ — $ 13.3 $ — (c) (c) Total Evergy investments at NAV $ 85.1 $ 2.5 $ 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 is 15 years, 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 $ 27.5 $ (0.3) $ (8.5) $ 50.9 Nuclear decommissioning trust - debt securities 0.1 1.5 5.4 5.9 Rabbi trusts - equity securities 0.8 0.9 1.6 2.4 Total $ 28.4 $ 2.1 $ (1.5) $ 59.2 Evergy Kansas Central Nuclear decommissioning trust - equity securities $ 16.2 $ 0.2 $ 0.2 $ 26.2 Rabbi trust - equity securities 0.6 0.5 1.1 2.7 Total $ 16.8 $ 0.7 $ 1.3 $ 28.9 Evergy Metro Nuclear decommissioning trust - equity securities $ 11.3 $ (0.5) $ (8.7) $ 24.7 Nuclear decommissioning trust - debt securities 0.1 1.5 5.4 5.9 Total $ 11.4 $ 1.0 $ (3.3) $ 30.6

RELATED PARTY TRANSACTIONS AN_2

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Tables)	9 Months Ended
	Sep. 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 September 30 Year to Date 2020 2019 2020 2019 (millions) Evergy Kansas Central billings to Evergy Missouri West $ 13.1 $ 4.5 $ 27.4 $ 17.2 Evergy Metro billings to Evergy Missouri West 46.5 41.6 121.8 125.8 Evergy Kansas Central billings to Evergy Metro 5.4 9.7 24.9 26.0 Evergy Metro billings to Evergy Kansas Central 26.9 33.0 94.5 108.8 The following table summarizes Evergy Kansas Central's and Evergy Metro's related party net receivables and payables. September 30 December 31 2020 2019 Evergy Kansas Central (millions) Net receivable from (payable to) Evergy $ (0.2) $ 6.9 Net payable to Evergy Metro (15.4) (14.9) Net receivable from Evergy Missouri West 4.5 3.1 Evergy Metro Net receivable from (payable to) Evergy $ 16.1 $ (4.3) Net receivable from Evergy Kansas Central 15.4 14.9 Net receivable from Evergy Missouri West 160.0 78.7

TAXES (Tables)

TAXES (Tables)	9 Months Ended
	Sep. 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 $ (16.4) $ (31.2) $ (35.0) $ (10.6) State (0.4) (0.8) (7.7) (1.6) Total (16.8) (32.0) (42.7) (12.2) Deferred income taxes Federal 46.6 75.5 83.4 78.0 State 21.5 23.0 57.7 36.5 Total 68.1 98.5 141.1 114.5 Investment tax credit amortization (1.3) (1.0) (4.6) (3.1) Income tax expense $ 50.0 $ 65.5 $ 93.8 $ 99.2 Evergy Kansas Central Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (4.6) $ 11.2 $ 7.5 $ 39.1 State (6.4) (1.2) (13.3) (2.4) Total (11.0) 10.0 (5.8) 36.7 Deferred income taxes Federal 17.9 4.6 (10.7) (9.3) State 16.6 12.0 169.4 21.1 Total 34.5 16.6 158.7 11.8 Investment tax credit amortization (1.0) (0.8) (3.7) (2.3) Income tax expense $ 22.5 $ 25.8 $ 149.2 $ 46.2 Evergy Metro Three Months Ended Year to Date 2020 2019 2020 2019 Current income taxes (millions) Federal $ (8.9) $ (2.2) $ (8.4) $ 32.1 State 9.5 3.9 10.5 9.3 Total 0.6 1.7 2.1 41.4 Deferred income taxes Federal 22.2 26.3 38.9 1.4 State 2.6 4.5 (35.1) 1.9 Total 24.8 30.8 3.8 3.3 Investment tax credit amortization (0.3) (0.3) (0.8) (0.8) Income tax expense $ 25.1 $ 32.2 $ 5.1 $ 43.9
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) (1.6) (1.6) (1.7) State income taxes 3.5 4.0 3.4 3.9 Flow through depreciation for plant-related differences (4.9) (3.1) (4.8) (3.2) Federal tax credits (4.6) (3.9) (4.6) (3.9) Non-controlling interest (0.3) (0.4) (0.3) (0.4) AFUDC equity (0.2) — (0.3) — Amortization of federal investment tax credits (0.7) (0.5) (0.7) (0.5) Changes in uncertain tax positions, net — (0.4) — (0.3) State tax rate change — — 2.0 — Valuation allowance (0.4) — (0.2) (1.1) Stock compensation — 0.3 (0.1) 0.2 Officer compensation limitation 0.2 0.1 0.2 0.1 Other — (0.5) — (0.3) Effective income tax rate 12.0 % 15.0 % 14.0 % 13.8 % 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 (2.9) (2.8) (2.9) (3.0) State income taxes 2.3 4.4 2.9 4.2 Flow through depreciation for plant-related differences (0.4) 0.8 (0.2) 0.5 Federal tax credits (6.8) (6.2) (6.8) (6.1) Non-controlling interest (0.7) (0.8) (0.6) (0.8) AFUDC equity 0.1 (0.1) (0.4) (0.1) Amortization of federal investment tax credits (1.1) (0.7) (1.0) (0.7) Changes in uncertain tax positions, net — (0.9) — (0.5) State tax rate change — — 32.0 — Valuation allowance — — — (0.5) Stock compensation — — (0.1) (0.1) Other — (1.4) — (0.7) Effective income tax rate 11.5 % 13.3 % 43.9 % 13.2 % 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 (0.2) (0.1) (0.2) (0.1) State income taxes 5.5 3.6 4.5 3.2 Flow through depreciation for plant-related differences (9.1) (6.1) (9.1) (6.1) Federal tax credits (2.4) (1.3) (2.4) (1.4) AFUDC equity (0.5) — (0.3) — Amortization of federal investment tax credits (0.4) (0.3) (0.4) (0.3) State tax rate change — — (11.4) — Stock compensation — — (0.4) — Officer compensation limitation 0.5 0.3 0.5 0.3 Other 0.1 0.4 — (0.4) Effective income tax rate 14.5 % 17.5 % 1.8 % 16.2 %

ORGANIZATION AND BASIS OF PRE_4

ORGANIZATION AND BASIS OF PRESENTATION - Organization (Details) customer in Millions	9 Months Ended
	Sep. 30, 2020customerkilovolt_linesubsidiarysegmentmiMW
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	Sep. 30, 2020	Dec. 31, 2019
Inventory [Line Items]
Fuel inventory	$ 153.7	$ 146.4
Supplies	358.4	335.2
Fuel inventory and supplies	512.1	481.6
Evergy Kansas Central
Inventory [Line Items]
Fuel inventory	84.9	80.2
Supplies	194.9	186.2
Fuel inventory and supplies	279.8	266.4
Evergy Metro
Inventory [Line Items]
Fuel inventory	47.5	46.1
Supplies	125.7	116.9
Fuel inventory and supplies	$ 173.2	$ 163

ORGANIZATION AND BASIS OF PRE_6

ORGANIZATION AND BASIS OF PRESENTATION - Summary of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	$ 19,624.1	$ 19,184.4
Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	28,670.5	27,768.8
Property, plant and equipment, adjustment	724.3	740.6
Accumulated depreciation	(10,849.4)	(10,293.7)
Property, plant and equipment, net	18,545.4	18,215.7
Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	946.6	839.2
Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	131.2	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	10,054.8	9,864.9
Evergy Kansas Central | Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,947.2	13,538.1
Property, plant and equipment, adjustment	724.3	740.6
Accumulated depreciation	(5,210)	(4,951.5)
Property, plant and equipment, net	9,461.5	9,327.2
Evergy Kansas Central | Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	527.1	472.8
Evergy Kansas Central | Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	65.3	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	7,027.1	6,839
Evergy Metro | Electric plant in service
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	11,110.9	10,776.5
Property, plant and equipment, adjustment	0	0
Accumulated depreciation	(4,487.3)	(4,272)
Property, plant and equipment, net	6,623.6	6,504.5
Evergy Metro | Construction work in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	337.6	269.9
Evergy Metro | Nuclear fuel, net
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	65.9	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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Entity Information [Line Items]
Non-service cost component of net benefit cost	$ (13.7)	$ (13.7)	$ (43.7)	$ (40.9)
Other	(6.4)	(6)	(14)	(16.3)
Other expense	(20.1)	(19.7)	(57.7)	(57.2)
Evergy Kansas Central
Entity Information [Line Items]
Non-service cost component of net benefit cost	(4.1)	(4.9)	(14.1)	(14.5)
Other	(5.6)	(5.9)	(12.8)	(15.4)
Other expense	(9.7)	(10.8)	(26.9)	(29.9)
Evergy Metro
Entity Information [Line Items]
Non-service cost component of net benefit cost	(6.5)	(5)	(19.7)	(15.3)
Other	(0.4)	0.1	(0.5)	(0.4)
Other expense	$ (6.9)	$ (4.9)	$ (20.2)	$ (15.7)

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						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Income
Net income	$ 367.5	$ 136.3	$ 72.2	$ 370.9	$ 144.6	$ 103.4	$ 576	$ 618.9
Less: Net income attributable to noncontrolling interests	3			4.1			8.7	12.9
Net income attributable to Evergy, Inc.	$ 364.5			$ 366.8			$ 567.3	$ 606
Common Shares Outstanding
Weighted average equivalent common shares outstanding - basic (in shares)	227.3			234.6			227.2	243.5
Add: effect of dilutive securities (in shares)	0.2			0.4			0.3	0.3
Diluted average number of common shares outstanding (in shares)	227.5			235			227.5	243.8
Earnings Per Share, Basic	$ 1.60			$ 1.56			$ 2.50	$ 2.49
Earnings Per Share, Diluted	$ 1.60			$ 1.56			$ 2.49	$ 2.49

ORGANIZATION AND BASIS OF PRE_9

ORGANIZATION AND BASIS OF PRESENTATION - Antidilutive Securities (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020
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	124,136		124,136

ORGANIZATION AND BASIS OF PR_10

ORGANIZATION AND BASIS OF PRESENTATION - Dividends Declared (Details) - USD ($)	Nov. 03, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Nov. 02, 2020
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)		$ 0.505	$ 0.505	$ 0.505	$ 0.475	$ 0.475	$ 0.475
Subsequent Event | Evergy Kansas Central
Dividends Payable [Line Items]
Dividends payable								$ 40,000,000
Subsequent Event | Evergy Metro
Dividends Payable [Line Items]
Dividends payable								$ 40,000,000
Common Stock | Subsequent Event
Dividends Payable [Line Items]
Dividends declared on common stock (in dollars per share)	$ 0.535

ORGANIZATION AND BASIS OF PR_11

ORGANIZATION AND BASIS OF PRESENTATION - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for (received from):
Interest, net of amount capitalized	$ 267.8	$ 240.8
Income taxes, net of refunds	(73.8)	(13.1)
Right-of-use assets obtained in exchange for new operating lease liabilities	4.1	3
Right-of-use assets obtained in exchange for new finance lease liabilities	5	2.3
Non-cash investing transactions:
Property, plant and equipment additions	371	99.4
Non-cash financing transactions:
Issuance of stock for compensation and reinvested dividends	0.9	(0.3)
Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.8	1.6
Evergy Kansas Central
Cash paid for (received from):
Interest, net of amount capitalized	114.1	109.4
Income taxes, net of refunds	(6.4)	1.8
Right-of-use assets obtained in exchange for new operating lease liabilities	3.8	0.6
Right-of-use assets obtained in exchange for new finance lease liabilities	3.7	2.3
Non-cash investing transactions:
Property, plant and equipment additions	183.8	35.3
Evergy Kansas Central | Variable Interest Entities
Cash paid for (received from):
Interest of VIEs	0.8	1.6
Evergy Metro
Cash paid for (received from):
Interest, net of amount capitalized	73.3	83.5
Income taxes, net of refunds	(7.3)	32.8
Right-of-use assets obtained in exchange for new operating lease liabilities	0.3	2.4
Right-of-use assets obtained in exchange for new finance lease liabilities	1.3	0
Non-cash investing transactions:
Property, plant and equipment additions	$ 165.6	$ 60.8

REVENUE (Details)

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 1,483.5	$ 1,566.3	$ 3,715.5	$ 3,945.8
Other	34.1	11.3	103.5	70.4
Operating revenues	1,517.6	1,577.6	3,819	4,016.2
Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	720.7	742.2	1,821.8	1,913.7
Other	12.9	6.8	42.7	17.6
Operating revenues	733.6	749	1,864.5	1,931.3
Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	507.8	563	1,268.6	1,379
Other	20.7	5.8	59.7	52.2
Operating revenues	528.5	568.8	1,328.3	1,431.2
Residential
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	636.4	653	1,515.6	1,536.3
Residential | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	262.9	268.9	627.5	640.4
Residential | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	241.2	249.2	572.2	575.5
Commercial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	499.5	539.1	1,272.9	1,391.2
Commercial | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	205.2	219.3	511	556.4
Commercial | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	213.3	234.1	558.1	613.5
Industrial
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	166.8	175.3	446.7	478.9
Industrial | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	105.7	111.3	284.6	308.5
Industrial | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	36.6	40.8	99.6	106.7
Other retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	9.5	16	29.2	35.3
Other retail | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	4.4	5.6	13.3	15.8
Other retail | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	2.7	7	8.9	12.3
Total electric retail
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	1,312.2	1,383.4	3,264.4	3,441.7
Total electric retail | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	578.2	605.1	1,436.4	1,521.1
Total electric retail | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	493.8	531.1	1,238.8	1,308
Wholesale
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	85	96.3	195.8	251.7
Wholesale | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	68.7	67.7	168.1	182.5
Wholesale | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	9.7	23.5	16.7	54.7
Transmission
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	80.7	80.4	238.5	233.5
Transmission | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	72.9	67.7	215.2	205.5
Transmission | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	3.5	7.8	10.4	14
Industrial steam and other
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	5.6	6.2	16.8	18.9
Industrial steam and other | Evergy Kansas Central
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	0.9	1.7	2.1	4.6
Industrial steam and other | Evergy Metro
Disaggregation of Revenue [Line Items]
Total revenue from contracts with customers	$ 0.8	$ 0.6	$ 2.7	$ 2.3

RECEIVABLES (Details)

RECEIVABLES (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	$ 181.2	$ 127.8
Allowance for credit losses	(15.2)	(10.5)
Total	318.5	228.5
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	206.7	94.5
Allowance for credit losses	(5.5)	(3.8)
Total	256.5	140.4
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables	24.7	23.1
Allowance for credit losses	(6.5)	(4.6)
Total	80	48.1
Customer accounts receivable | Billed
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	8.6	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	4.9	3.1
Customer accounts receivable | Unbilled
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	143.9	104
Customer accounts receivable | Unbilled | Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	55.3	49.7
Customer accounts receivable | Unbilled | Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Customer accounts receivable	$ 56.9	$ 26.5

RECEIVABLES - Narrative (Detail

RECEIVABLES - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Entity Information [Line Items]
Other receivables, contracts with customers	$ 58.8	$ 42
Accounts receivable pledged as collateral	395	339
Evergy Kansas Central
Entity Information [Line Items]
Other receivables, contracts with customers	49.9	37.7
Accounts receivable pledged as collateral	200	171
Evergy Metro
Entity Information [Line Items]
Other receivables, contracts with customers	6.1	1.2
Accounts receivable pledged as collateral	130	$ 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	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	$ 10.5	$ 9.2
Credit loss expense	15.5	22.4
Write-offs	(20.8)	(31.9)
Recoveries of prior write-offs	10	9.2
Ending balance September 30	15.2	8.9
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	3.8	3.9
Credit loss expense	6.9	5.6
Write-offs	(7.3)	(8.8)
Recoveries of prior write-offs	2.1	2.7
Ending balance September 30	5.5	3.4
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance January 1	4.6	3.8
Credit loss expense	5.5	11.7
Write-offs	(8.9)	(16.2)
Recoveries of prior write-offs	5.3	4.6
Ending balance September 30	$ 6.5	$ 3.9

RECEIVABLES - Other Receivables

RECEIVABLES - Other Receivables (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 58.8	$ 42
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	49.9	37.7
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Other receivables, contracts with customers	$ 6.1	$ 1.2

RECEIVABLES - Pledged as Collat

RECEIVABLES - Pledged as Collateral (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 395	$ 339
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	200	171
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 130	$ 118

RATE MATTERS AND REGULATION - N

RATE MATTERS AND REGULATION - Narrative (Details) $ in Millions	1 Months Ended		9 Months Ended
	May 31, 2020USD ($)	Apr. 30, 2020USD ($)	Sep. 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			0.50
Approved return on equity, percentage			9.30%
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			18.3
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)
FERC 2021 TFR Proceeding | Evergy Kansas Central | Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of decrease over prior year			32.4
FERC 2021 TFR Proceeding | Evergy Metro | Federal Energy Regulatory Commission
Regulatory Proceedings [Line Items]
Annual transmissions revenue estimated amount of decrease over prior year			$ (3.9)

GOODWILL (Details)

GOODWILL (Details) $ in Millions	9 Months Ended
	Sep. 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

ASSET RETIREMENT OBLIGATIONS (D

ASSET RETIREMENT OBLIGATIONS (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1	$ 674.1	$ 687.1
Revision in timing and/or estimates	257	(22.3)
Settlements	(11)	(17.8)
Accretion	28.7	27.1
Ending balance	948.8	674.1
Less: current portion	(66.5)	(71.3)
Asset retirement obligations	882.3	602.8
Evergy Kansas Central
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1	272.9	281.1
Revision in timing and/or estimates	136.9	(12.4)
Settlements	(2.1)	(14.8)
Accretion	14.2	19
Ending balance	421.9	272.9
Less: current portion	(23.3)	(23.3)
Asset retirement obligations	398.6	249.6
Evergy Metro
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Beginning balance January 1	253.6	261
Revision in timing and/or estimates	118.4	(9.9)
Settlements	(2.7)	(2.5)
Accretion	12.1	5
Ending balance	381.4	253.6
Less: current portion	(33)	(36.1)
Asset retirement obligations	$ 348.4	$ 217.5

ASSET RETIREMENT OBLIGATIONS -

ASSET RETIREMENT OBLIGATIONS - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Jointly Owned Utility Plant Interests [Line Items]
Increase to ARO to decommission Wolf Creek resulting from study	$ 259.1
Evergy Kansas Central
Jointly Owned Utility Plant Interests [Line Items]
Increase to ARO to decommission Wolf Creek resulting from study	140.7
Evergy Metro
Jointly Owned Utility Plant Interests [Line Items]
Increase to ARO to decommission Wolf Creek resulting from study	$ 118.4

PENSION PLANS AND POST-RETIRE_3

PENSION PLANS AND POST-RETIREMENT BENEFITS - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer	$ 54.3
Contributions to plans remainder of year	78.4
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	45.7
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	8.6
Contributions to plans remainder of year	78.4
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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 20.1	$ 19.1	$ 59.2	$ 57.3
Interest cost	24	27.5	72.9	82.4
Expected return on plan assets	(26.3)	(27)	(79.7)	(80.9)
Prior service cost	0.4	0.5	1.3	1.5
Recognized net actuarial (gain) loss	12.1	6.9	34.8	20.6
Settlement and special termination benefits	10	14.5	10	14.5
Net periodic benefit costs before regulatory adjustment and intercompany allocations	40.3	41.5	98.5	95.4
Regulatory adjustment	(0.4)	4.9	18.6	30.4
Intercompany allocations	0	0	0	0
Net periodic benefit costs	39.9	46.4	117.1	125.8
Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.7	0.6	2.1	1.9
Interest cost	2.3	2.6	6.9	7.9
Expected return on plan assets	(2.4)	(2.5)	(7)	(7.5)
Prior service cost	0.1	0.1	0.3	0.3
Recognized net actuarial (gain) loss	0.1	(0.3)	0.2	(0.9)
Settlement and special termination benefits	0	0	0	0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.8	0.5	2.5	1.7
Regulatory adjustment	(1)	(0.8)	(2.9)	(2.5)
Intercompany allocations	0	0	0	0
Net periodic benefit costs	(0.2)	(0.3)	(0.4)	(0.8)
Evergy Kansas Central | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	6.8	7.3	20.4	21.8
Interest cost	11.7	13.4	35.2	40.3
Expected return on plan assets	(13.3)	(13.7)	(39.9)	(41.1)
Prior service cost	0.4	0.5	1.2	1.3
Recognized net actuarial (gain) loss	8.5	6.2	25.4	19
Settlement and special termination benefits	0	0	0	0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	14.1	13.7	42.3	41.3
Regulatory adjustment	0.4	0.5	1.1	1.5
Intercompany allocations	1.6	0	(0.1)	0
Net periodic benefit costs	16.1	14.2	43.3	42.8
Evergy Kansas Central | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.3	0.2	0.9	0.8
Interest cost	1.2	1.4	3.6	4.2
Expected return on plan assets	(1.7)	(1.7)	(5)	(5)
Prior service cost	0.1	0.1	0.3	0.3
Recognized net actuarial (gain) loss	0	(0.1)	0	(0.4)
Settlement and special termination benefits	0	0	0	0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	(0.1)	(0.1)	(0.2)	(0.1)
Regulatory adjustment	(0.7)	(0.7)	(2.1)	(2.2)
Intercompany allocations	0.1	0	0.1	0
Net periodic benefit costs	(0.7)	(0.8)	(2.2)	(2.3)
Evergy Metro | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	13.3	11.8	38.8	35.5
Interest cost	12.1	14.1	37.1	42.1
Expected return on plan assets	(13.5)	(12.3)	(41.5)	(36.9)
Prior service cost	0.2	0.2	0.6	0.7
Recognized net actuarial (gain) loss	11.6	12.2	34.2	36.7
Settlement and special termination benefits	12.7	20.8	12.7	20.8
Net periodic benefit costs before regulatory adjustment and intercompany allocations	36.4	46.8	81.9	98.9
Regulatory adjustment	(11.3)	(14.7)	(9.2)	(15.9)
Intercompany allocations	(5.8)	(13.6)	(17)	(27.6)
Net periodic benefit costs	19.3	18.5	55.7	55.4
Evergy Metro | Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.4	0.4	1.2	1.1
Interest cost	1.1	1.2	3.3	3.7
Expected return on plan assets	(0.7)	(0.8)	(2)	(2.5)
Prior service cost	0	0	0	0
Recognized net actuarial (gain) loss	(0.1)	(0.3)	(0.4)	(1.1)
Settlement and special termination benefits	0	0	0	0
Net periodic benefit costs before regulatory adjustment and intercompany allocations	0.7	0.5	2.1	1.2
Regulatory adjustment	(0.2)	0.1	(0.3)	0.3
Intercompany allocations	(0.1)	(0.2)	(0.1)	(0.3)
Net periodic benefit costs	$ 0.4	$ 0.4	$ 1.7	$ 1.2

SHORT-TERM BORROWINGS AND SHO_3

SHORT-TERM BORROWINGS AND SHORT-TERM BANK LINES OF CREDIT - Narrative (Details) - Cash Borrowings	Sep. 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	Sep. 30, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Master Credit Facility	$ 2,500	$ 2,500
Available Borrowings	2,278.7	1,921.1
Evergy, Inc.
Short-term Debt [Line Items]
Master Credit Facility	450	450
Available Borrowings	$ 249.3	$ 429.3
Weighted Average Interest Rate on Short-Term Borrowings	1.42%	2.99%
Evergy Kansas Central
Short-term Debt [Line Items]
Master Credit Facility	$ 1,000	$ 1,000
Available Borrowings	$ 981.4	$ 736.6
Weighted Average Interest Rate on Short-Term Borrowings	0.00%	2.07%
Evergy Metro
Short-term Debt [Line Items]
Master Credit Facility	$ 600	$ 600
Available Borrowings	$ 600	$ 400.7
Weighted Average Interest Rate on Short-Term Borrowings	0.00%	2.02%
Evergy Missouri West Inc
Short-term Debt [Line Items]
Master Credit Facility	$ 450	$ 450
Available Borrowings	$ 448	$ 354.5
Weighted Average Interest Rate on Short-Term Borrowings	0.00%	2.02%
Commercial Paper
Short-term Debt [Line Items]
Long-term line of credit	$ 0	$ 541.9
Commercial Paper | Evergy Kansas Central
Short-term Debt [Line Items]
Long-term line of credit	0	249.2
Commercial Paper | Evergy Metro
Short-term Debt [Line Items]
Long-term line of credit	0	199.3
Commercial Paper | Evergy Missouri West Inc
Short-term Debt [Line Items]
Long-term line of credit	0	93.4
Letters of Credit
Short-term Debt [Line Items]
Letters of Credit	21.3	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	18.6	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	200	20
Cash Borrowings | Evergy, Inc.
Short-term Debt [Line Items]
Long-term line of credit	200	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		9 Months Ended		10 Months Ended
	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 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			$ 0	$ 69.8
Notional amount	500		$ 500		500	$ 500
Other comprehensive loss	69.8	$ 0	29.4	0	64.4
Interest expense		94.8	90.8	290.5	277.3
Income tax expense		50	65.5	93.8	99.2
Accumulated other comprehensive loss over the next twelve months		5.3		5.3
Senior Notes Due 2029 Evergy | Senior Notes
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Debt issued	$ 800		$ 800		$ 800	$ 800
Interest rate	2.90%		2.90%		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		5.3
Income tax expense		$ (0.4)		$ (3.6)

FAIR VALUE MEASUREMENTS - Long-

FAIR VALUE MEASUREMENTS - Long-Term Debt (Details) - USD ($) $ in Millions	Sep. 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	$ 9,629.9	$ 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	11,126.4	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	3,931.1	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	4,711.5	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	2,922.7	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	3,555.6	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	114.1	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	19.3	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	$ 19.3	$ 51.5

FAIR VALUE MEASUREMENTS - Recur

FAIR VALUE MEASUREMENTS - Recurring (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Assets
Total nuclear decommissioning trust	$ 587.5	$ 573.2
Total rabbi trust	45.5	45.5
Total self-insured health plan trust	13	9.9
Total Assets	646	628.6
Level 1
Assets
Total nuclear decommissioning trust	501.9	493
Total rabbi trust	0.8	0.6
Total self-insured health plan trust	7.6	4.6
Total Assets	510.3	498.2
Level 2
Assets
Total nuclear decommissioning trust	45.2	36.2
Total rabbi trust	0	0
Total self-insured health plan trust	5.4	5.3
Total Assets	50.6	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	40.4	44
Total rabbi trust	44.7	44.9
Total self-insured health plan trust	0	0
Total Assets	85.1	88.9
Evergy Kansas Central
Assets
Total nuclear decommissioning trust	279.1	272.5
Total rabbi trust	31.8	31.7
Total Assets	310.9	304.2
Evergy Kansas Central | Core bond fund
Assets
Total nuclear decommissioning trust	39.6	39.3
Total rabbi trust	25.3	25.3
Evergy Kansas Central | High-yield bond fund
Assets
Total nuclear decommissioning trust	23	22.3
Evergy Kansas Central | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.8	19.4
Evergy Kansas Central | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	18.2	16.4
Total rabbi trust	6.3	6.3
Evergy Kansas Central | Alternative investments fund
Assets
Total nuclear decommissioning trust	20.2	23.9
Evergy Kansas Central | Real estate securities fund
Assets
Total nuclear decommissioning trust	12.8	12.6
Evergy Kansas Central | Cash equivalents
Assets
Total nuclear decommissioning trust	0.4	0.5
Total rabbi trust	0.2	0.1
Evergy Kansas Central | Level 1
Assets
Total nuclear decommissioning trust	238.7	228.5
Total rabbi trust	0.2	0.1
Total Assets	238.9	228.6
Evergy Kansas Central | Level 1 | Core bond fund
Assets
Total nuclear decommissioning trust	39.6	39.3
Total rabbi trust	0	0
Evergy Kansas Central | Level 1 | High-yield bond fund
Assets
Total nuclear decommissioning trust	23	22.3
Evergy Kansas Central | Level 1 | Emerging markets bond fund
Assets
Total nuclear decommissioning trust	18.8	19.4
Evergy Kansas Central | Level 1 | Combination debt/equity/other fund
Assets
Total nuclear decommissioning trust	18.2	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	0.4	0.5
Total rabbi trust	0.2	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	40.4	44
Total rabbi trust	31.6	31.6
Total Assets	72	75.6
Evergy Kansas Central | NAV | Core bond fund
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	25.3	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	6.3	6.3
Evergy Kansas Central | NAV | Alternative investments fund
Assets
Total nuclear decommissioning trust	20.2	23.9
Evergy Kansas Central | NAV | Real estate securities fund
Assets
Total nuclear decommissioning trust	12.8	12.6
Evergy Kansas Central | NAV | Cash equivalents
Assets
Total nuclear decommissioning trust	0	0
Total rabbi trust	0	0
Evergy Kansas Central | Domestic | Equity securities
Assets
Total nuclear decommissioning trust	90.9	86.1
Evergy Kansas Central | Domestic | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	83.5	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	7.4	7.5
Evergy Kansas Central | International | Equity securities
Assets
Total nuclear decommissioning trust	55.2	52
Evergy Kansas Central | International | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	55.2	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	308.4	300.7
Total self-insured health plan trust	13	9.9
Total Assets	321.4	310.6
Evergy Metro | Equity securities
Assets
Total nuclear decommissioning trust	208	211.1
Total self-insured health plan trust	1.1	0.5
Evergy Metro | Cash equivalents
Assets
Total nuclear decommissioning trust	7.1	3.1
Evergy Metro | U.S. Treasury
Assets
Total nuclear decommissioning trust	48.1	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	3.7	2.2
Evergy Metro | Corporate bonds
Assets
Total nuclear decommissioning trust	40.9	33.2
Evergy Metro | Foreign governments
Assets
Total nuclear decommissioning trust	0.1	0.1
Evergy Metro | Other
Assets
Total nuclear decommissioning trust	0	0.3
Evergy Metro | Debt securities
Assets
Total self-insured health plan trust	8.6	6.7
Evergy Metro | Cash and cash equivalents
Assets
Total self-insured health plan trust	3.3	2.7
Evergy Metro | Level 1
Assets
Total nuclear decommissioning trust	263.2	264.5
Total self-insured health plan trust	7.6	4.6
Total Assets	270.8	269.1
Evergy Metro | Level 1 | Equity securities
Assets
Total nuclear decommissioning trust	208	211.1
Total self-insured health plan trust	1.1	0.5
Evergy Metro | Level 1 | Cash equivalents
Assets
Total nuclear decommissioning trust	7.1	3.1
Evergy Metro | Level 1 | U.S. Treasury
Assets
Total nuclear decommissioning trust	48.1	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	3.3	2.7
Evergy Metro | Level 2
Assets
Total nuclear decommissioning trust	45.2	36.2
Total self-insured health plan trust	5.4	5.3
Total Assets	50.6	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	3.7	2.2
Evergy Metro | Level 2 | Corporate bonds
Assets
Total nuclear decommissioning trust	40.9	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	0.3
Evergy Metro | Level 2 | Debt securities
Assets
Total self-insured health plan trust	5.4	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	13.7	13.8
Other Evergy | Fixed income fund
Assets
Total rabbi trust	13.1	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	13.1	13.3
Other Evergy | NAV | Fixed income fund
Assets
Total rabbi trust	13.1	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	9 Months Ended
	Sep. 30, 2020USD ($)fundextension	Dec. 31, 2019USD ($)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Commitments	$ 2.5	$ 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	40.4
Unfunded Commitments	2.5	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	$ 2.5	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	$ 587.5	573.2
Total rabbi trust	45.5	45.5
Total Assets	646	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	279.1	272.5
Total rabbi trust	31.8	31.7
Total Assets	310.9	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	20.2	23.9
Fair Value, Measurements, Recurring | Evergy Kansas Central | Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	12.8	12.6
Fair Value, Measurements, Recurring | Evergy Kansas Central | Core bond fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	39.6	39.3
Total rabbi trust	25.3	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	18.2	16.4
Total rabbi trust	6.3	6.3
Fair Value, Measurements, Recurring | Other Evergy
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total rabbi trust	13.7	13.8
Fair Value, Measurements, Recurring | Domestic | Evergy Kansas Central | Equity securities
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	90.9	86.1
NAV | Fair Value, Measurements, Recurring
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	40.4	44
Total rabbi trust	44.7	44.9
Total Assets	85.1	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	40.4	44
Total rabbi trust	31.6	31.6
Total Assets	72	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	$ 20.2	23.9
Length of Settlement	65 days
NAV | Fair Value, Measurements, Recurring | Evergy Kansas Central | Real estate securities fund
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust	$ 12.8	12.6
Length of Settlement	65 days
NAV | Fair Value, Measurements, Recurring | Evergy Kansas Central | Nuclear decommissioning trust:
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total nuclear decommissioning trust		44
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	25.3	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	6.3	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	31.6	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	13.1	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	$ 7.4	$ 7.5

FAIR VALUE MEASUREMENTS - Gains

FAIR VALUE MEASUREMENTS - Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 28.4	$ 2.1	$ (1.5)	$ 59.2
Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	27.5	(0.3)	(8.5)	50.9
Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	0.1	1.5	5.4	5.9
Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	0.8	0.9	1.6	2.4
Evergy Kansas Central
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	16.8	0.7	1.3	28.9
Evergy Kansas Central | Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	16.2	0.2	0.2	26.2
Evergy Kansas Central | Rabbi trusts - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	0.6	0.5	1.1	2.7
Evergy Metro
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	11.4	1	(3.3)	30.6
Evergy Metro | Nuclear decommissioning trust - equity securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	11.3	(0.5)	(8.7)	24.7
Evergy Metro | Nuclear decommissioning trust - debt securities
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items]
Unrealized gain (losses)	$ 0.1	$ 1.5	$ 5.4	$ 5.9

RELATED PARTY TRANSACTIONS AN_3

RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Evergy Metro | Evergy Inc Money Pool
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 78		$ 78
Due to Related Parties, Current	0		0
Due from (to) related parties					$ 0
Evergy Metro | Evergy Missouri West Inc
Related Party Transaction [Line Items]
Due from (to) related parties	16.1		16.1		(4.3)
Evergy Metro | Evergy Missouri West Inc | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	46.5	$ 41.6	121.8	$ 125.8
Evergy Metro | Evergy Kansas Central
Related Party Transaction [Line Items]
Due from (to) related parties	15.4		15.4		14.9
Evergy Metro | Evergy Kansas Central | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	26.9	33	94.5	108.8
Evergy Metro | Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	160		160		78.7
Evergy Metro | Evergy | Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	0.6		0.6
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	(0.2)		(0.2)		6.9
Evergy Kansas Central | Evergy Missouri West Inc | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	13.1	4.5	27.4	17.2
Evergy Kansas Central | Evergy Metro
Related Party Transaction [Line Items]
Due from (to) related parties	(15.4)		(15.4)		(14.9)
Evergy Kansas Central | Evergy Metro | Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	5.4	$ 9.7	24.9	$ 26
Evergy Kansas Central | Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	4.5		4.5		3.1
Evergy Kansas Central | Evergy | Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	29.3		29.3		37.9
Evergy Kansas Central | Evergy Metro | Subsidiary of Common Parent
Related Party Transaction [Line Items]
Right-of-use assets under operating leases	29.1		29.1		29.5
Lease liability recorded in other current liabilities	0.7		0.7		0.6
Total long-term obligations under operating leases	$ 28.4		$ 28.4		$ 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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Current income taxes
Federal	$ (16.4)	$ (31.2)	$ (35)	$ (10.6)
State	(0.4)	(0.8)	(7.7)	(1.6)
Total	(16.8)	(32)	(42.7)	(12.2)
Deferred income taxes
Federal	46.6	75.5	83.4	78
State	21.5	23	57.7	36.5
Total	68.1	98.5	141.1	114.5
Investment tax credit amortization	(1.3)	(1)	(4.6)	(3.1)
Income tax expense	$ 50	$ 65.5	$ 93.8	$ 99.2
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%)	(1.60%)	(1.60%)	(1.70%)
State income taxes	3.50%	4.00%	3.40%	3.90%
Flow through depreciation for plant-related differences	(4.90%)	(3.10%)	(4.80%)	(3.20%)
Federal tax credits	(4.60%)	(3.90%)	(4.60%)	(3.90%)
Non-controlling interest	(0.30%)	(0.40%)	(0.30%)	(0.40%)
AFUDC equity	(0.20%)	0.00%	(0.30%)	0.00%
Amortization of federal investment tax credits	(0.70%)	(0.50%)	(0.70%)	(0.50%)
Changes In Uncertain Tax Positions, Net	0.00%	(0.40%)	0.00%	(0.30%)
State tax rate change	0.00%	0.00%	2.00%	0.00%
Valuation allowance	(0.40%)	0.00%	(0.20%)	(1.10%)
Stock compensation	0.00%	0.30%	(0.10%)	0.20%
Officer compensation limitation	0.20%	0.10%	0.20%	0.10%
Other	0.00%	(0.50%)	0.00%	(0.30%)
Effective income tax rate	12.00%	15.00%	14.00%	13.80%
Evergy Kansas Central
Current income taxes
Federal	$ (4.6)	$ 11.2	$ 7.5	$ 39.1
State	(6.4)	(1.2)	(13.3)	(2.4)
Total	(11)	10	(5.8)	36.7
Deferred income taxes
Federal	17.9	4.6	(10.7)	(9.3)
State	16.6	12	169.4	21.1
Total	34.5	16.6	158.7	11.8
Investment tax credit amortization	(1)	(0.8)	(3.7)	(2.3)
Income tax expense	$ 22.5	$ 25.8	$ 149.2	$ 46.2
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effect of:
COLI policies	(2.90%)	(2.80%)	(2.90%)	(3.00%)
State income taxes	2.30%	4.40%	2.90%	4.20%
Flow through depreciation for plant-related differences	(0.40%)	0.80%	(0.20%)	0.50%
Federal tax credits	(6.80%)	(6.20%)	(6.80%)	(6.10%)
Non-controlling interest	(0.70%)	(0.80%)	(0.60%)	(0.80%)
AFUDC equity	0.10%	(0.10%)	(0.40%)	(0.10%)
Amortization of federal investment tax credits	(1.10%)	(0.70%)	(1.00%)	(0.70%)
Changes In Uncertain Tax Positions, Net	0.00%	(0.90%)	0.00%	(0.50%)
State tax rate change	0.00%	0.00%	32.00%	0.00%
Valuation allowance	0.00%	0.00%	0.00%	(0.50%)
Stock compensation	0.00%	0.00%	(0.10%)	(0.10%)
Other	0.00%	(1.40%)	0.00%	(0.70%)
Effective income tax rate	11.50%	13.30%	43.90%	13.20%
Evergy Metro
Current income taxes
Federal	$ (8.9)	$ (2.2)	$ (8.4)	$ 32.1
State	9.5	3.9	10.5	9.3
Total	0.6	1.7	2.1	41.4
Deferred income taxes
Federal	22.2	26.3	38.9	1.4
State	2.6	4.5	(35.1)	1.9
Total	24.8	30.8	3.8	3.3
Investment tax credit amortization	(0.3)	(0.3)	(0.8)	(0.8)
Income tax expense	$ 25.1	$ 32.2	$ 5.1	$ 43.9
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal statutory income tax rate	21.00%	21.00%	21.00%	21.00%
Effect of:
COLI policies	(0.20%)	(0.10%)	(0.20%)	(0.10%)
State income taxes	5.50%	3.60%	4.50%	3.20%
Flow through depreciation for plant-related differences	(9.10%)	(6.10%)	(9.10%)	(6.10%)
Federal tax credits	(2.40%)	(1.30%)	(2.40%)	(1.40%)
AFUDC equity	(0.50%)	0.00%	(0.30%)	0.00%
Amortization of federal investment tax credits	(0.40%)	(0.30%)	(0.40%)	(0.30%)
State tax rate change	0.00%	0.00%	(11.40%)	0.00%
Stock compensation	0.00%	0.00%	(0.40%)	0.00%
Officer compensation limitation	0.50%	0.30%	0.50%	0.30%
Other	0.10%	0.40%	0.00%	(0.40%)
Effective income tax rate	14.50%	17.50%	1.80%	16.20%

TAXES - State Tax Reform (Detai

TAXES - State Tax Reform (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	May 31, 2020	Sep. 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