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v3.19.3.a.u2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
(Discount), premium and issuance costs | $ 4 | $ 63 | $ 2
Southern California Edison Company |  |  |
(Discount), premium and issuance costs | $ (6) | $ 58 | $ (10)

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- Definition Premiums, Discounts and Issuance Costs of Long Term Debt + References No definition available. + Details
Name: | eix_PremiumsDiscountsandIssuanceCostsofLongTermDebt
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=eix_SouthernCaliforniaEdisonCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |