v3.26.1
Financing Activities - Credit Arrangements (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Jan. 31, 2026
Dec. 31, 2025
Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) $ 65   $ 456
Capacity 3,950    
PPL Capital Funding [Member]      
Line of Credit Facility [Line Items]      
Capacity 1,700    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 44   473
Unused Capacity 1,656    
PPL Capital Funding [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   355
Capacity 1,600    
PPL Capital Funding [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 1,500 $ 1,500  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   456
Unused Capacity 1,500    
Line of Credit Facility, Borrowing Capacity Sublimit 1,100    
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   355
PPL Capital Funding [Member] | Bilateral Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 100    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 44   17
Unused Capacity 56    
PPL Capital Funding [Member] | Bilateral Credit Facility #2      
Line of Credit Facility [Line Items]      
Capacity 100    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   0
Unused Capacity 100    
PPL Electric [Member]      
Line of Credit Facility [Line Items]      
Capacity 750    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 6   6
Unused Capacity 744    
PPL Electric [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   0
Capacity 750    
PPL Electric [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 750 750  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 6   6
Unused Capacity 744    
LGE [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   0
Unused Capacity 600    
LGE [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   0
Capacity 600    
LGE [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 600 600  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   0
Unused Capacity 600    
KU [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 65   0
Unused Capacity 535    
KU [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 65   0
Capacity 600    
KU [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 600 600  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 65   0
Unused Capacity 535    
Rhode Island Energy | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   101
Capacity 400    
Rhode Island Energy | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Line of Credit Facility, Borrowing Capacity Sublimit 400    
Line of Credit Facility, Borrowing Capacity Sublimit, Maximum 600    
Rhode Island Energy | Syndicated Credit Facility [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a)     101
PPL Electric Utilities Corp [Member]      
Line of Credit Facility [Line Items]      
Capacity 750    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 6   6
Unused Capacity 744    
PPL Electric Utilities Corp [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   0
Capacity 750    
PPL Electric Utilities Corp [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 750 750  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 6   6
Unused Capacity 744    
Louisville Gas And Electric Co [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   0
Unused Capacity 600    
Louisville Gas And Electric Co [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 0   0
Capacity 600    
Louisville Gas And Electric Co [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 600 600  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 0   0
Unused Capacity 600    
Kentucky Utilities Co [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 65   0
Unused Capacity 535    
Kentucky Utilities Co [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 65   0
Capacity 600    
Kentucky Utilities Co [Member] | Syndicated Credit Facility [Member]      
Line of Credit Facility [Line Items]      
Capacity 600 $ 600  
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 65   $ 0
Unused Capacity $ 535