v3.25.2
Financing Activities - Credit Arrangements (Details) - USD ($)
$ in Millions
Jul. 14, 2025
Jun. 30, 2025
Jan. 01, 2025
Dec. 31, 2024
Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   $ 1,288   $ 303
Capacity (c)   3,150    
PPL Capital Funding [Member]        
Line of Credit Facility [Line Items]        
Capacity   1,700    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   490   153
Unused Capacity   1,210    
PPL Capital Funding [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   470   138
Capacity (c)   1,350    
PPL Capital Funding [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) $ 1,600      
PPL Capital Funding [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   1,500 $ 1,500 1,250
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   470   138
Unused Capacity   1,030    
Line of Credit Facility, Borrowing Capacity Sublimit   1,250   1,000
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   470   138
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 (c)   20   15
Unused Capacity   80    
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 (c)   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 (c)   386   1
Unused Capacity   364    
PPL Electric [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   385   0
Capacity (c)   650    
PPL Electric [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) 750      
PPL Electric [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   750 750 650
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   386   1
Unused Capacity   364    
LGE [Member]        
Line of Credit Facility [Line Items]        
Capacity   600    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   158   25
Unused Capacity   442    
LGE [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   158   25
Capacity (c)   500    
LGE [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) 600      
LGE [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   600 600 500
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   158   25
Unused Capacity   442    
KU [Member]        
Line of Credit Facility [Line Items]        
Capacity   600    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   275   140
Unused Capacity   325    
KU [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   275   140
Capacity (c)   400    
KU [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) 600      
KU [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   600 600 400
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   275   140
Unused Capacity   325    
Rhode Island Energy | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   0   0
Capacity (c)   250    
Rhode Island Energy | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Line of Credit Facility, Borrowing Capacity Sublimit   250   250
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 (d)   0   0
PPL Electric Utilities Corp [Member]        
Line of Credit Facility [Line Items]        
Capacity   750    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   386   1
Unused Capacity   364    
PPL Electric Utilities Corp [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   385   0
Capacity (c)   650    
PPL Electric Utilities Corp [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) 750      
PPL Electric Utilities Corp [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   750 750 650
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   386   1
Unused Capacity   364    
Louisville Gas And Electric Co [Member]        
Line of Credit Facility [Line Items]        
Capacity   600    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   158   25
Unused Capacity   442    
Louisville Gas And Electric Co [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   158   25
Capacity (c)   500    
Louisville Gas And Electric Co [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) 600      
Louisville Gas And Electric Co [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   600 600 500
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   158   25
Unused Capacity   442    
Kentucky Utilities Co [Member]        
Line of Credit Facility [Line Items]        
Capacity   600    
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   275   140
Unused Capacity   325    
Kentucky Utilities Co [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Commercial Paper Issuances (d)   275   140
Capacity (c)   400    
Kentucky Utilities Co [Member] | Subsequent Event [Member] | Commercial Paper [Member]        
Line of Credit Facility [Line Items]        
Capacity (c) $ 600      
Kentucky Utilities Co [Member] | Syndicated Credit Facility [Member]        
Line of Credit Facility [Line Items]        
Capacity   600 $ 600 400
Borrowed   0   0
Letters of Credit and Commercial Paper Issued (c)   275   $ 140
Unused Capacity   $ 325