v3.26.1
Financing Activities - Long-term Debt (Details) - USD ($)
$ in Millions
1 Months Ended
May 31, 2026
Jul. 31, 2026
Jun. 30, 2026
May 12, 2026
Dec. 31, 2025
Long-term Debt (Numeric) [Abstract]          
Long-term debt due within one year     $ 469   $ 904
Long-term Debt, Excluding Current Maturities     $ 19,789   17,990
Remarketable Senior Notes | Remarketable Senior Notes due 2034          
Long-term Debt (Numeric) [Abstract]          
Stated interest rate     4.02%    
Remarketable Senior Notes | Remarketable Senior Notes due 2039          
Long-term Debt (Numeric) [Abstract]          
Stated interest rate     4.02%    
PPL Electric [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     $ 750    
Borrowed     0   0
PPL Electric [Member] | First Mortgage Bond [Member] | First Mortgage Bonds Due 2056          
Long-term Debt (Numeric) [Abstract]          
Principal amount       $ 500  
Stated interest rate       5.75%  
Proceeds from Issuance of First Mortgage Bond $ 491        
PPL Capital Funding [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     1,700    
Borrowed     0   0
LGE [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     600    
Borrowed     0   0
LGE [Member] | Louisville/Jefferson County Metro Government of Kentucky Pollution Control Revenue Bonds, 2005 Series A | Remarketed [Member] | Subsequent Event [Member]          
Long-term Debt (Numeric) [Abstract]          
Principal amount   $ 40      
Stated interest rate   3.80%      
KU [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     600    
Borrowed     0   0
Rhode Island Energy | Senior Notes [Member] | Senior Notes Due 2056          
Long-term Debt (Numeric) [Abstract]          
Principal amount       $ 400  
Stated interest rate       6.00%  
Proceeds from Issuance of Senior Long-Term Debt 396        
PPL Electric Utilities Corp [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     750    
Borrowed     0   0
Long-term debt due within one year     108   0
Long-term Debt, Excluding Current Maturities     6,091   5,707
PPL Electric Utilities Corp [Member] | First Mortgage Bond [Member] | First Mortgage Bonds Due 2056          
Long-term Debt (Numeric) [Abstract]          
Principal amount       $ 500  
Stated interest rate       5.75%  
Proceeds from Issuance of First Mortgage Bond $ 491        
Louisville Gas And Electric Co [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     600    
Borrowed     0   0
Long-term debt due within one year     155   90
Long-term Debt, Excluding Current Maturities     2,711   2,775
Louisville Gas And Electric Co [Member] | Louisville/Jefferson County Metro Government of Kentucky Pollution Control Revenue Bonds, 2005 Series A | Remarketed [Member] | Subsequent Event [Member]          
Long-term Debt (Numeric) [Abstract]          
Principal amount   $ 40      
Stated interest rate   3.80%      
Kentucky Utilities Co [Member]          
Long-term Debt (Numeric) [Abstract]          
Capacity     600    
Borrowed     0   0
Long-term debt due within one year     206   164
Long-term Debt, Excluding Current Maturities     $ 3,287   $ 3,346