Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 22.4		$ 26.2
Receivables, net of allowance for credit losses of $27.1 and $32.9, respectively	384.4		221.6
Accounts receivable pledged as collateral	347.0		319.0
Fuel inventory and supplies	636.5		566.7
Income taxes receivable	2.1		28.0
Regulatory assets	411.5		424.1
Prepaid expenses	52.3		49.3
Other assets	65.9		75.4
Total Current Assets	1,922.1		1,710.3
PROPERTY, PLANT AND EQUIPMENT, NET	21,468.6		21,002.6
OTHER ASSETS:
Regulatory assets	2,056.8		1,991.1
Nuclear decommissioning trust fund	687.6		768.7
Goodwill	2,336.6		2,336.6
Other	572.8		563.4
Total Other Assets	5,653.8		5,659.8
TOTAL ASSETS	29,188.8		28,520.5
CURRENT LIABILITIES:
Current maturities of long-term debt	349.5		389.3
Notes payable and commercial paper	2,028.5		1,159.3
Collateralized note payable	347.0		319.0
Accounts payable	474.3		639.7
Accrued taxes	212.2		150.4
Accrued interest	92.2		118.8
Regulatory liabilities	73.8		70.7
Asset retirement obligations	18.5		19.5
Accrued compensation and benefits	73.9		51.6
Other	189.8		184.6
Total Current Liabilities	3,859.7		3,102.9
LONG-TERM LIABILITIES:
Long-term debt, net	9,196.7		9,297.9
Deferred income taxes	1,913.5		1,861.9
Unamortized investment tax credits	180.5		181.4
Regulatory liabilities	2,578.0		2,705.0
Pension and post-retirement liability	886.3		879.1
Asset retirement obligations	959.8		940.6
Other	303.5		310.0
Total Long-Term Liabilities	16,018.3		16,175.9
Evergy, Inc. Shareholders' Equity:
Retained earnings	2,136.0		2,082.9
Accumulated other comprehensive loss	(41.2)		(44.0)
Total Evergy, Inc. Shareholders' Equity	9,307.3		9,244.4
Noncontrolling Interests	3.5		(2.7)
Total Equity	9,310.8	$ 9,237.5	9,241.7	$ 8,977.1	$ 8,794.4	$ 8,718.5
TOTAL LIABILITIES AND EQUITY	29,188.8		28,520.5
Variable Interest Entities
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	$ 144.3		$ 147.8