v3.26.3
Financing Activities - Credit Arrangements (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Jan. 31, 2026
Dec. 31, 2025
Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) $ 680   $ 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) 188   473
Unused Capacity 1,512    
PPL Capital Funding [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 140   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) 140   456
Unused Capacity 1,360    
Line of Credit Facility, Borrowing Capacity Sublimit 1,250   1,100
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 140   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) 48   17
Unused Capacity 52    
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) 23   6
Unused Capacity 727    
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) 23   6
Unused Capacity 727    
LGE [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 220   0
Unused Capacity 380    
LGE [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 220   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) 220   0
Unused Capacity 380    
KU [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 320   0
Unused Capacity 280    
KU [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 320   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) 320   0
Unused Capacity 280    
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 250   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) 0   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) 23   6
Unused Capacity 727    
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) 23   6
Unused Capacity 727    
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) 220   0
Unused Capacity 380    
Louisville Gas And Electric Co [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 220   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) 220   0
Unused Capacity 380    
Kentucky Utilities Co [Member]      
Line of Credit Facility [Line Items]      
Capacity 600    
Borrowed 0   0
Letters of Credit and Commercial Paper Issued (a) 320   0
Unused Capacity 280    
Kentucky Utilities Co [Member] | Commercial Paper [Member]      
Line of Credit Facility [Line Items]      
Commercial Paper Issuances (a) 320   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) 320   $ 0
Unused Capacity $ 280