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Regulatory Assets and Liabilities (Liabilities) (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Regulatory Liabilities |  |
Current regulatory liabilities | $ 563 | $ 1,347
Long-term regulatory liabilities | 10,430 | 10,159
SCE |  |
Regulatory Liabilities |  |
Current regulatory liabilities | 563 | 1,347
Long-term regulatory liabilities | 10,430 | 10,159
Total regulatory liabilities | 10,993 | 11,506
SCE | Regulatory balancing and memorandum accounts |  |
Regulatory Liabilities |  |
Current regulatory liabilities | 386 | 1,144
Long-term regulatory liabilities | 2,264 | 2,023
SCE | Costs of removal |  |
Regulatory Liabilities |  |
Long-term regulatory liabilities | 2,585 | 2,520
SCE | Deferred income taxes |  |
Regulatory Liabilities |  |
Long-term regulatory liabilities | 2,150 | 2,163
SCE | Recoveries in excess of ARO liabilities |  |
Regulatory Liabilities |  |
Long-term regulatory liabilities | 1,714 | 1,748
SCE | Pension and other postretirement benefits |  |
Regulatory Liabilities |  |
Long-term regulatory liabilities | 1,696 | 1,690
SCE | Other |  |
Regulatory Liabilities |  |
Current regulatory liabilities | 35 | 38
Long-term regulatory liabilities | 21 | 15
SCE | Deferred Derivative Gain (Loss) |  |
Regulatory Liabilities |  |
Current regulatory liabilities | $ 142 | $ 165

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- Definition The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477571/980-405-25-1 + Details
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- Definition The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477571/980-405-25-1 + Details
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