Other Income (Expense) - net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Other Income
Economic foreign currency exchange contracts	$ (19)	$ 44	$ 44	$ 56
Defined benefit plans - non-service credits	67	77	202	237
Interest Income	1	3	3	12
AFUDC - equity component	6	6	14	17
Miscellaneous	0	1	2	6
Total Other Income	55	131	265	328
Other Expense
Charitable Contributions	0	1	2	3
Miscellaneous	3	4	10	16
Total Other Expense	3	5	12	19
Other Income (Expense) - net	52	126	253	309
PPL Electric Utilities Corp [Member]
Other Income
Defined benefit plans - non-service credits	1	1	3	3
Interest Income	1	0	1	1
AFUDC - equity component	6	6	14	17
Total Other Income	8	7	18	21
Other Expense
Charitable Contributions	0	0	1	2
Miscellaneous	1	0	2	1
Total Other Expense	1	0	3	3
Other Income (Expense) - net	$ 7	$ 7	$ 15	$ 18