Other Income (Expense) - net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Other Income
Defined benefit plans - non-service credits	$ (1)	$ 9	$ 16	$ 20
AFUDC - equity component	8	6	14	10
Miscellaneous	(10)	13	(10)	0
Other Expense
Charitable Contributions	0	(1)	(2)	(2)
Other Income (Expense) - net	5	26	35	26
Interest Income (Expense), Nonoperating, Net	8	(1)	17	(2)
PPL Electric Utilities Corp [Member]
Other Income
Defined benefit plans - non-service credits	5	4	10	8
AFUDC - equity component	4	4	8	8
Miscellaneous	(1)	(1)	0	(2)
Other Expense
Charitable Contributions	0	0	(2)	(2)
Other Income (Expense) - net	9	7	21	13
Interest Income (Expense), Nonoperating, Net	$ 1	$ 0	$ 5	$ 1