RECEIVABLES - Pledged as Collateral (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of outstanding principal under receivables agreement	$ 365.0	$ 365.0
Additional Amount of Outstanding Principal Under Receivables Agreement	200.0	200.0
Accounts receivable pledged as collateral	356.0	402.0
Evergy Kansas Central
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of outstanding principal under receivables agreement	185.0	185.0
Additional Amount of Outstanding Principal Under Receivables Agreement	65.0	65.0
Accounts receivable pledged as collateral	193.0	213.0
Evergy Metro
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of outstanding principal under receivables agreement	130.0	130.0
Additional Amount of Outstanding Principal Under Receivables Agreement	70.0	70.0
Accounts receivable pledged as collateral	113.0	139.0
Evergy Missouri West
Accounts, Notes, Loans and Financing Receivable [Line Items]
Maximum amount of outstanding principal under receivables agreement	50.0	50.0
Additional Amount of Outstanding Principal Under Receivables Agreement	65.0	65.0
Accounts receivable pledged as collateral	$ 50.0	$ 50.0

Additional amount of outstanding principal under receivables agreement

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- Definition

Maximum amount of outstanding principal under receivables agreement

+ References

No definition available.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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- Definition

Carrying amount of financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)
-SubTopic 30
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A

+ Details

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