Related-Party Transactions (Details) - SCE - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Current insurance receivable due from affiliates	$ 0		$ 0		$ 268
Wildfire liability insurance \| Wholly-owned subsidiary
Related Party Transaction [Line Items]
Wildfire-related insurance premiums	160	$ 176	160	$ 176
Current insurance receivable due from affiliates	0		0		268
Prepaid Insurance					$ 56
Wildfire insurance expense	$ 44	$ 50	$ 87	$ 100

Wildfire Insurance Expense

No definition available.

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- Definition

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due within 1 year (or 1 business cycle).

+ References

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- Definition

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

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- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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