Revenue (Deferred) (Details) - SCE - West of Devers - USD ($) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
Jul. 31, 2021	Jun. 30, 2022	Jun. 30, 2022
Revenue
Proceeds from Morongo Transmission LLC	$ 400
Annual revenue to be recognized	$ 13
Deferred revenue balance		$ 387	$ 387
Deferred revenue current		13	13
Deferred revenue non-current		374	374
Revenue recognized		$ 4	$ 7

Amount of annual straight-line revenue to be recognized.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Cash received for rents during the current period.

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