v3.26.3
Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Short-term Debt [Line Items]    
Capacity $ 3,950  
Commercial Paper Issuances (a) 680 $ 456
Unused Capacity $ 3,270  
PPL Capital Funding [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.17% 4.16%
Capacity $ 1,600  
Commercial Paper Issuances (a) 140 $ 355
Unused Capacity $ 1,460  
PPL Electric [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate  
Capacity $ 750  
Commercial Paper Issuances (a) 0 $ 0
Unused Capacity $ 750  
LGE [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.14%
Capacity $ 600  
Commercial Paper Issuances (a) 220 $ 0
Unused Capacity $ 380  
KU [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.14%
Capacity $ 600  
Commercial Paper Issuances (a) 320 $ 0
Unused Capacity $ 280  
Rhode Island Energy    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.21%
Capacity $ 400  
Commercial Paper Issuances (a) 0 $ 101
Unused Capacity $ 400  
PPL Electric Utilities Corp [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate  
Capacity $ 750  
Commercial Paper Issuances (a) 0 $ 0
Unused Capacity $ 750  
Louisville Gas And Electric Co [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.14%
Capacity $ 600  
Commercial Paper Issuances (a) 220 $ 0
Unused Capacity $ 380  
Kentucky Utilities Co [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.14%
Capacity $ 600  
Commercial Paper Issuances (a) 320 $ 0
Unused Capacity $ 280