Other Income (Expense) - net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Income
Defined benefit plans - non-service credits	$ 13	$ 7	$ 30	$ 27
AFUDC - equity component	7	8	21	17
Miscellaneous	(7)	(4)	(19)	(4)
Other Expense
Charitable Contributions	(1)	(1)	(3)	(2)
Other Income (Expense) - net	16	10	51	36
Interest Income (Expense), Nonoperating, Net	4	0	22	(2)
PPL Electric Utilities Corp [Member]
Other Income
Defined benefit plans - non-service credits	5	4	15	12
AFUDC - equity component	4	4	12	12
Miscellaneous	(2)	(3)	(2)	(4)
Other Expense
Charitable Contributions	0	0	(2)	(2)
Other Income (Expense) - net	8	6	29	19
Interest Income (Expense), Nonoperating, Net	$ 1	$ 1	$ 6	$ 1