Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Discounts and issuance costs of long term debt	$ 2	$ 7	$ 17
Southern California Edison Company
Discounts and issuance costs of long term debt	$ 10		$ (17)