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	395.0	339.0
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	200.0	561.9
Collateralized note payable	395.0	339.0
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	7,077.0	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	39.0	9.9
Accounts receivable pledged as collateral	200.0	171.0
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	266.0
Total Other Assets	1,246.2	1,268.9
TOTAL ASSETS	12,447.3	12,046.7
CURRENT LIABILITIES:
Notes payable and commercial paper	0.0	249.2
Collateralized note payable	200.0	171.0
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	116.0
Total Current Liabilities	887.5	1,286.5
LONG-TERM LIABILITIES:
Deferred income taxes	853.6	817.7
Unamortized investment tax credits	67.0	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	1,556.0	1,494.0
Total Evergy, Inc. Shareholders' Equity	4,293.6	4,231.6
Noncontrolling Interests	(17.9)	(26.6)
Total Equity	4,275.7	4,205.0
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	0.0	250.0
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	0.0	18.8
Variable Interest Entities | Evergy Kansas Central
CURRENT ASSETS:
PROPERTY, PLANT AND EQUIPMENT, NET	156.7	162.0
CURRENT LIABILITIES:
Current maturities of long-term debt	18.8	32.3
LONG-TERM LIABILITIES:
Long-term debt, net	$ 0.0	$ 18.8