Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash payments (receipts):
Interest, net of amounts capitalized	$ 1,001	$ 887	$ 836
Income taxes, net	(49)	(88)	(34)
Common stock
Non-cash financing and investing activities:
Dividends declared but not paid	282	266	251
Preferred stock
Non-cash financing and investing activities:
Dividends declared but not paid	8	11	11
SCE
Cash payments (receipts):
Interest, net of amounts capitalized	864	760	713
Income taxes, net	(49)	(88)	(50)
Non-cash financing and investing activities:
Accrued capital expenditures	652	668	730
SCE | Common stock
Non-cash financing and investing activities:
Dividends declared but not paid	350	325
SCE | Preferred stock
Non-cash financing and investing activities:
Dividends declared but not paid	$ 8	$ 11	$ 11