Regulatory Assets and Liabilities (Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Regulatory Assets
Current regulatory assets	$ 2,989	$ 2,524
Regulatory assets: non-current	8,806	8,897
SCE
Regulatory Assets
Current regulatory assets	2,989	2,524
Regulatory assets: non-current	8,806	8,897
Total regulatory assets	11,795	11,421
SCE \| Regulatory balancing and memorandum accounts-Assets
Regulatory Assets
Current regulatory assets	2,955	2,502
Regulatory assets: non-current	1,061	1,257
SCE \| Deferred income taxes
Regulatory Assets
Regulatory assets: non-current	5,651	5,533
SCE \| Unamortized investments, net of accumulated amortization
Regulatory Assets
Regulatory assets: non-current	111	110
SCE \| Unamortized losses on reacquired debt
Regulatory Assets
Regulatory assets: non-current	96	99
SCE \| Environmental remediation
Regulatory Assets
Regulatory assets: non-current	227	226
SCE \| Recovery assets
Regulatory Assets
Regulatory assets: non-current	1,547	1,558
SCE \| Other regulatory assets or liabilities
Regulatory Assets
Current regulatory assets	34	22
Regulatory assets: non-current	$ 113	$ 114

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No definition available.

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481878/980-340-50-1

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.

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Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

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