Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Income And Expense
Total other income and (expenses), net	$ 502	$ 500	$ 348
SCE
Other Income And Expense
Equity AFUDC	187	157	137
Increase in cash surrender value of life insurance policies and life insurance benefits	42	37	42
Interest income	250	261	80
Net periodic benefit income – non-service components	91	100	136
Civic, political and related activities and donations	(63)	(42)	(42)
Other	(14)	(16)	(16)
Total other income and (expenses), net	493	497	337
Edison International Parent and Other:
Other Income And Expense
Other	9	6	10
Net (losses) gains on equity securities	$ 0	$ (3)	$ 1