Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Discounts and issuance costs of long term debt	$ 12	$ 3
Southern California Edison Company
Discounts and issuance costs of long term debt	$ 9

Premiums Discounts and Issuance Costs of Long Term Debt

No definition available.

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Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration