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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Short-term Debt [Line Items]    
Capacity $ 3,950  
Commercial paper issuances 456 $ 303
Unused capacity $ 3,494  
PPL Capital Funding [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.16% 4.76%
Capacity $ 1,600  
Commercial paper issuances 355 $ 138
Unused capacity 1,245  
PPL Electric [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate  
Capacity 750  
Commercial paper issuances 0 $ 0
Unused capacity $ 750  
LGE [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.72%
Capacity $ 600  
Commercial paper issuances 0 $ 25
Unused capacity $ 600  
KU [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.71%
Capacity $ 600  
Commercial paper issuances 0 $ 140
Unused capacity $ 600  
Rhode Island Energy    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.21%
Capacity $ 400  
Commercial paper issuances 101 $ 0
Unused capacity 299  
PPL Electric Utilities Corp [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate  
Capacity 750  
Commercial paper issuances 0 $ 0
Unused capacity $ 750  
Louisville Gas And Electric Co [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.72%
Capacity $ 600  
Commercial paper issuances 0 $ 25
Unused capacity $ 600  
Kentucky Utilities Co [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.71%
Capacity $ 600  
Commercial paper issuances 0 $ 140
Unused capacity $ 600