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Commitments and Contingencies (Expense summary) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
2017/2018 Wildfire/Mudslide Events |  |  |
Commitments and Contingencies |  |  |
Charge for wildfire-related claims |  | $ 630 | $ 1,296
Expected revenue from CPUC and FERC customers |  | (37) | (76)
Total pre-tax charge |  | 593 | 1,220
Income tax benefit |  | (165) | (341)
Total after-tax charge |  | 428 | 879
Post-2018 Wildfires |  |  |
Commitments and Contingencies |  |  |
Charge for wildfire-related claims |  | 184 | 572
Expected insurance recoveries |  | (147) | (390)
Expected revenue from CPUC and FERC customers |  | (2) | (162)
Total pre-tax charge |  | 35 | 20
Income tax benefit |  | (10) | (6)
Total after-tax charge |  | 25 | 14
SCE | 2017/2018 Wildfire/Mudslide Events |  |  |
Commitments and Contingencies |  |  |
Charge for wildfire-related claims |  | 630 |
Expected revenue from CPUC and FERC customers | $ (4) |  |
Total pre-tax charge | 61 |  |
Total after-tax charge | $ 44 |  |
SCE | Post-2018 Wildfires |  |  |
Commitments and Contingencies |  |  |
Charge for wildfire-related claims |  | 184 | 572
Expected insurance recoveries |  | (149) | (399)
Expected revenue from CPUC and FERC customers |  | (2) | (162)
Total pre-tax charge |  | 33 | 11
Income tax benefit |  | (9) | (3)
Total after-tax charge |  | $ 24 | $ 8

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