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Revenue (Deferred) (Details) - SCE - West of Devers - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jul. 31, 2021 | Mar. 31, 2022
Revenue |  |
Proceeds from Morongo Transmission LLC | $ 400 |
Annual revenue to be recognized | $ 13 |
Deferred revenue balance |  | $ 391
Deferred revenue current |  | 13
Deferred revenue non-current |  | 378
Revenue recognized |  | $ 3

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