Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other Income And Expense
Total other income and (expenses), net	$ 500	$ 348	$ 237
SCE
Other Income And Expense
Equity allowance for funds used during construction	157	137	118
Increase in cash surrender value of life insurance policies and life insurance benefits	37	42	40
Interest income	261	80	3
Net periodic benefit income - non-service components	100	136	123
Civic, political and related activities and donations	(42)	(42)	(39)
Other	(16)	(16)	(12)
Total other income and (expenses), net	497	337	233
Edison International Parent and Other
Other Income And Expense
Net (losses) gains on equity securities	(3)	1	3
Other	$ 6	$ 10	$ 1