Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
(Discount), premium and issuance costs	$ 23	$ (4)	$ (63)
SCE
(Discount), premium and issuance costs	$ 26	$ 6	$ (58)