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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Short-term Debt [Line Items]    
Capacity $ 3,150  
Commercial paper issuances 303 $ 993
Unused capacity $ 2,847  
PPL Capital Funding [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.76% 5.66%
Capacity $ 1,350  
Commercial paper issuances 138 $ 365
Unused capacity 1,212  
PPL Electric [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate   5.67%
Capacity 650  
Commercial paper issuances 0 $ 510
Unused capacity $ 650  
LGE [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.72%  
Capacity $ 500  
Commercial paper issuances 25 $ 0
Unused capacity $ 475  
KU [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.71% 5.64%
Capacity $ 400  
Commercial paper issuances 140 $ 93
Unused capacity 260  
Rhode Island Energy    
Short-term Debt [Line Items]    
Weighted-average interest rate   5.72%
Capacity 250  
Commercial paper issuances 0 $ 25
Unused capacity 250  
PPL Electric Utilities Corp [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate   5.67%
Capacity 650  
Commercial paper issuances 0 $ 510
Unused capacity $ 650  
Louisville Gas And Electric Co [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.72%  
Capacity $ 500  
Commercial paper issuances 25 $ 0
Unused capacity $ 475  
Kentucky Utilities Co [Member]    
Short-term Debt [Line Items]    
Weighted-average interest rate 4.71% 5.64%
Capacity $ 400  
Commercial paper issuances 140 $ 93
Unused capacity $ 260