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Equity (Issuances) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022
SCE |  |
Class of Stock [Line Items] |  |
Capital contributions | $ 700 | $ 700
401(K) |  |
Class of Stock [Line Items] |  |
Stock issued (in shares) | 31,000 | 71,000
Proceeds received, net of offering costs | $ 2 | $ 5
Internal Programs Employee Stock Purchase Plan |  |
Class of Stock [Line Items] |  |
Stock issued (in shares) |  | 14,269
Proceeds received, net of offering costs |  | $ 1
Voluntary cash purchases |  |
Class of Stock [Line Items] |  |
Stock issued (in shares) |  | 12,864
Proceeds received, net of offering costs |  | $ 1
Stock compensation awards |  |
Class of Stock [Line Items] |  |
Stock issued (in shares) | 393,863 | 784,832
Proceeds received, net of offering costs | $ 20 | $ 31
In lieu of dividend payment |  |
Class of Stock [Line Items] |  |
Stock issued (in shares) | 64,531 | 136,346
Proceeds received, net of offering costs | $ 5 | $ 9

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