v3.25.2
Other Income (Expense) - net (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Other Income        
Defined benefit plans - non-service credits $ 7 $ 15 $ 15 $ 23
AFUDC - equity component 20 12 35 21
Miscellaneous (6) (1) (7) (5)
Other Expense        
Other Income (Expense) - net 23 32 51 54
Interest Income (Expense), Nonoperating, Net 2 6 8 15
PPL Electric Utilities Corp [Member]        
Other Income        
Defined benefit plans - non-service credits 4 4 7 9
AFUDC - equity component 8 7 15 11
Miscellaneous (1) 0 0 0
Other Expense        
Other Income (Expense) - net 11 11 22 20
Louisville Gas And Electric Co [Member]        
Other Income        
Defined benefit plans - non-service credits 1 2 1 2
AFUDC - equity component 4 2 7 3
Miscellaneous 0 0 0 1
Other Expense        
Other Income (Expense) - net 5 4 8 6
Kentucky Utilities Co [Member]        
Other Income        
Defined benefit plans - non-service credits 2 3 3 4
AFUDC - equity component 5 2 8 3
Miscellaneous (2) (1) (1) (1)
Other Expense        
Other Income (Expense) - net $ 5 $ 4 $ 10 $ 6