Other Income (Expense) - net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Income [Line Items]
Defined benefit plans - non-service credits	$ 40	$ 47	$ 21
Interest Income (Expense), Nonoperating, Net	32	4	12
Allowance for funds used during construction - equity component	30	22	18
Other Expense [Line Items]
Charitable contributions	(5)	(14)	(14)
Miscellaneous	(13)	(6)	19
Other Income (Expense) - net	(40)	54	15
Income (Expense) Related to Talen Litigation	(124)	1	(41)
PPL Electric Utilities Corp [Member]
Other Income [Line Items]
Defined benefit plans - non-service credits	20	15	9
Interest Income (Expense), Nonoperating, Net	8	3	0
Allowance for funds used during construction - equity component	16	16	18
Other Expense [Line Items]
Charitable contributions	(3)	(3)	(3)
Miscellaneous	(2)	(1)	(3)
Other Income (Expense) - net	$ 39	$ 30	$ 21