v3.26.1
Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Short-term Debt [Line Items]    
Capacity $ 3,950  
Commercial Paper Issuances (a) 65 $ 456
Unused Capacity $ 3,885  
PPL Capital Funding [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 4.16%
Capacity $ 1,600  
Commercial Paper Issuances (a) 0 $ 355
Unused Capacity $ 1,600  
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  
Capacity 600  
Commercial Paper Issuances (a) 0 $ 0
Unused Capacity $ 600  
KU [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 3.98%
Capacity $ 600  
Commercial Paper Issuances (a) 65 $ 0
Unused Capacity $ 535  
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  
Capacity 600  
Commercial Paper Issuances (a) 0 $ 0
Unused Capacity $ 600  
Kentucky Utilities Co [Member]    
Short-term Debt [Line Items]    
Weighted - Average Interest Rate 3.98%
Capacity $ 600  
Commercial Paper Issuances (a) 65 $ 0
Unused Capacity $ 535