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Commitments and Contingencies (Wildfire loss accrual) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Loss contingency accrual roll forward |  |
Wildfire-related claims, current | $ 121 | $ 131
Wildfire-related claims, non-current | 1,687 | 1,733
2017/2018 Wildfire/Mudslide Events |  |
Loss contingency accrual roll forward |  |
Beginning balance | 1,734 |
Increase in accrued estimated losses | 1,296 | 1,265
Amounts paid | (1,911) |
Ending balance | 1,119 | 1,734
Wildfire-related claims, current | 65 |
Wildfire-related claims, non-current | 934 | 1,603
2017/2018 Wildfire/Mudslide Events | SED Settlement |  |
Loss contingency accrual roll forward |  |
Wildfire-related claims, current | 56 |
Wildfire-related claims, non-current | 64 |
Other Wildfire Related Claims |  |
Loss contingency accrual roll forward |  |
Wildfire-related claims, non-current | 689 | 130
Post-2018 Wildfires |  |
Loss contingency accrual roll forward |  |
Beginning balance | 123 |
Increase in accrued estimated losses | 572 | 7
Amounts paid | (13) |
Ending balance | 682 | 123
SCE |  |
Loss contingency accrual roll forward |  |
Wildfire-related claims, current | 121 | 131
Wildfire-related claims, non-current | 1,687 | 1,733
SCE | 2017/2018 Wildfire/Mudslide Events | SED Settlement |  |
Loss contingency accrual roll forward |  |
Amounts paid | (1,700) |
SCE | Post-2018 Wildfires |  |
Loss contingency accrual roll forward |  |
Increase in accrued estimated losses | 572 | $ 7
Amounts paid | (13) |
Ending balance | $ 682 |

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