v3.26.1
RECEIVABLES - Allowance for Credit Loses (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Beginning balance January 1 $ 15.3 $ 15.7
Credit loss expense 6.0 5.1
Write-offs (13.8) (13.7)
Recoveries of prior write-offs 5.8 5.6
Ending balance June 30 13.3 12.7
Evergy Kansas Central    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Beginning balance January 1 7.3 7.8
Credit loss expense 3.0 1.7
Write-offs (6.2) (6.3)
Recoveries of prior write-offs 2.4 2.3
Ending balance June 30 6.5 5.5
Evergy Metro    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Beginning balance January 1 5.7 5.8
Credit loss expense 2.3 2.1
Write-offs (5.3) (5.1)
Recoveries of prior write-offs 2.3 2.3
Ending balance June 30 $ 5.0 $ 5.1