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Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Short-term Debt [Line Items]    
Capacity $ 3,300  
Commercial Paper Issuances (c) 0 $ 993
Unused Capacity 3,300  
PPL Capital Funding [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.66%
Capacity 1,350  
Commercial Paper Issuances (c) 0 $ 365
Unused Capacity 1,350  
PPL Electric [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.67%
Capacity 650  
Commercial Paper Issuances (c) 0 $ 510
Unused Capacity 650  
LGE [Member]    
Short-term Debt [Line Items]    
Capacity 500  
Commercial Paper Issuances (c) 0 $ 0
Unused Capacity 500  
KU [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.64%
Capacity 400  
Commercial Paper Issuances (c) 0 $ 93
Unused Capacity 400  
Rhode Island Energy    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.72%
Capacity 400  
Commercial Paper Issuances (c) 0 $ 25
Unused Capacity 400  
PPL Electric Utilities Corp [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.67%
Capacity 650  
Commercial Paper Issuances (c) 0 $ 510
Unused Capacity 650  
Louisville Gas And Electric Co [Member]    
Short-term Debt [Line Items]    
Capacity 500  
Commercial Paper Issuances (c) 0 $ 0
Unused Capacity 500  
Kentucky Utilities Co [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate   5.64%
Capacity 400  
Commercial Paper Issuances (c) 0 $ 93
Unused Capacity $ 400