The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

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Amount of transactions with related party during the financial reporting period.

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Receivables to be collected from (obligations owed to) related parties, net as of the balance sheet date within one year where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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RELATED PARTY TRANSACTIONS AND RELATIONSHIPS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Evergy Metro \| Evergy Inc Money Pool
Related Party Transaction [Line Items]
Due from Related Parties, Current	$ 91.5		$ 91.5		$ 155.0
Evergy Metro \| Evergy Missouri West
Related Party Transaction [Line Items]
Due from (to) related parties	190.8		190.8		254.5
Evergy Metro \| Evergy Missouri West \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	35.7	$ 35.4	100.7	$ 103.2
Evergy Metro \| Evergy Kansas Central
Related Party Transaction [Line Items]
Due from (to) related parties	16.8		16.8		14.5
Evergy Metro \| Evergy Kansas Central \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	39.2	36.9	103.9	90.8
Evergy Metro \| Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	14.8		14.8		8.7
Evergy Metro \| Evergy \| Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties	14.1		14.1
Evergy Metro \| Evergy \| Income Taxes Payable
Related Party Transaction [Line Items]
Due from (to) related parties					(2.5)
Evergy Kansas Central \| Evergy Missouri West
Related Party Transaction [Line Items]
Due from (to) related parties	9.9		9.9		10.4
Evergy Kansas Central \| Evergy Missouri West \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	8.4	7.3	23.0	24.1
Evergy Kansas Central \| Evergy Metro
Related Party Transaction [Line Items]
Due from (to) related parties	(16.8)		(16.8)		(14.5)
Evergy Kansas Central \| Evergy Metro \| Operating Expenses and Capital Costs Billed
Related Party Transaction [Line Items]
Related party transaction	10.6	$ 5.4	24.1	$ 22.4
Evergy Kansas Central \| Evergy
Related Party Transaction [Line Items]
Due from (to) related parties	(13.2)		(13.2)		(2.2)
Evergy Kansas Central \| Evergy \| Income Tax Receivable
Related Party Transaction [Line Items]
Due from (to) related parties					$ 9.6
Evergy Kansas Central \| Evergy \| Income Taxes Payable
Related Party Transaction [Line Items]
Due from (to) related parties	$ (8.6)		$ (8.6)
Jointly Owned Electricity Generation Plant Iatan No 1 And 2 \| Evergy Missouri West
Related Party Transaction [Line Items]
Jointly owned utility plant, proportionate ownership share	18.00%		18.00%
Jeffrey Energy Center \| Evergy Missouri West
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%