Other Income (Expense) - net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other Income
Defined benefit plans - non-service credits	$ 10	$ 4
AFUDC - equity component	4	4
Total Other Income	14	8
Other Expense
Charitable Contributions	1	1
Miscellaneous	13	7
Total Other Expense	14	8
Other Income (Expense) - net	0	0
PPL Electric Utilities Corp [Member]
Other Income
Defined benefit plans - non-service credits	4	2
Interest Income	1	0
AFUDC - equity component	4	4
Total Other Income	9	6
Other Expense
Charitable Contributions	1	1
Miscellaneous	2	0
Total Other Expense	3	1
Other Income (Expense) - net	$ 6	$ 5