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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
shares in Thousands, $ in Millions
Dec. 31, 2025
Dec. 31, 2024
Receivables Net Current [Abstract]    
Accounts receivable reserve for uncollectible accounts $ 133 $ 147
Unbilled Revenues, Reserve 6 6
Other Noncurrent Assets [Abstract]    
Accounts Receivable, Allowance for Credit Loss, Noncurrent $ 1 $ 1
Equity    
Common stock par value $ 0.01 $ 0.01
Common stock shares authorized 1,560,000 1,560,000
Common stock shares issued 770,978 770,215
Common stock shares outstanding 751,041 738,033
PPL Electric Utilities Corp [Member]    
Receivables Net Current [Abstract]    
Accounts receivable reserve for uncollectible accounts $ 34 $ 37
Unbilled Revenues, Reserve 4 3
Other Noncurrent Assets [Abstract]    
Accounts Receivable, Allowance for Credit Loss, Noncurrent $ 1 $ 1
Equity    
Common stock no par value $ 0 $ 0
Common stock shares authorized 170,000 170,000
Common stock shares issued 66,368 66,368
Common stock shares outstanding 66,368 66,368
Louisville Gas And Electric Co [Member]    
Receivables Net Current [Abstract]    
Accounts receivable reserve for uncollectible accounts $ 5 $ 3
Unbilled Revenues, Reserve $ 0 $ 0
Equity    
Common stock no par value $ 0 $ 0
Common stock shares authorized 75,000 75,000
Common stock shares issued 21,294 21,294
Common stock shares outstanding 21,294 21,294
Kentucky Utilities Co [Member]    
Receivables Net Current [Abstract]    
Accounts receivable reserve for uncollectible accounts $ 4 $ 2
Unbilled Revenues, Reserve $ 0 $ 0
Equity    
Common stock no par value $ 0 $ 0
Common stock shares authorized 80,000 80,000
Common stock shares issued 37,818 37,818
Common stock shares outstanding 37,818 37,818