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Commitments and Contingencies (Wildfires litigation) (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2021 USD ($) | Apr. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Jan. 31, 2021 $ / claim | Oct. 31, 2020 USD ($) $ / claim | Dec. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2022 USD ($) plaintiff | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
2017/2018 Wildfire/Mudslide Events |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in accrued estimated losses |  |  |  |  |  |  |  |  |  |  | $ 1,296 | $ 1,265 |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | 76 | 67 |
Total pre-tax charge |  |  |  |  |  |  |  |  |  |  | 1,220 | 1,198 |
Total after-tax charge |  |  |  |  |  |  |  |  |  |  | 879 | 894 |
Payments |  |  |  |  |  |  |  |  |  |  | 1,911 |  |
Charge for wildfire-related claims |  |  |  |  |  | $ 1,119 |  |  |  |  | 1,119 | 1,734 |
2017/2018 Wildfire/Mudslide Events | Settled Litigation |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Charge for wildfire-related claims |  |  |  |  |  | 185 |  |  |  |  | 185 |  |
2017/2018 Wildfire/Mudslide Events | Settled Litigation | SED Settlement |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Charge for wildfire-related claims |  |  |  |  |  | 120,000 |  |  |  |  | 120,000 |  |
2017/2018 Wildfire/Mudslide Events | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Charge for wildfire-related claims |  |  |  |  |  | 934,000 |  |  |  |  | 934,000 |  |
2017/2018 Wildfire/Mudslide Events | Aggregate |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  |  |  |  | 7,600 |  |
Post-2018 Wildfires |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in accrued estimated losses |  |  |  |  |  |  |  |  |  |  | 572 | 7 |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | 162 |  |
Total pre-tax charge |  |  |  |  |  |  |  |  |  |  | 20 | 7 |
Total after-tax charge |  |  |  |  |  |  |  |  |  |  | 14 | 5 |
Payments |  |  |  |  |  |  |  |  |  |  | 13 |  |
Charge for wildfire-related claims |  |  |  |  |  | 682 |  |  |  |  | 682 | 123 |
SCE |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  | 10,678 |  |  |  |  | 10,678 | 9,438 |
SCE | 2017/2018 Wildfire/Mudslide Events |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Regulatory Assets |  |  |  |  |  | 142 |  |  |  |  | 142 |  |
SCE | 2017/2018 Wildfire/Mudslide Events | SED Settlement |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  |  |  |  | $ 1,700 |  |
Third-party uninsured claims cost recovery waiver | $ 375 |  |  |  |  |  |  |  |  |  |  |  |
Fine to State | 110 |  |  |  |  |  |  |  |  |  |  |  |
Shareholder-funded safety measures costs | 65 |  |  |  |  |  |  |  |  |  |  |  |
SCE | 2017/2018 Wildfire/Mudslide Events | Local Public Entity Settlements |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  |  |  | $ 360 |  |  |
SCE | 2017/2018 Wildfire/Mudslide Events | TKM Subrogation Settlement |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  | $ 1,200 |  |  |  |  |  |  |  |
Payment agreement for each dollar of claim | $ / claim |  |  |  |  | 0.555 |  |  |  |  |  |  |  |
SCE | 2017/2018 Wildfire/Mudslide Events | Individual Plaintiff Settlements |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  | 280 | $ 350 | $ 400 | $ 700 |  |  | 1,700 | $ 300
Number of plaintiffs | plaintiff |  |  |  |  |  |  |  |  |  |  | 9,500 |  |
SCE | 2017/2018 Wildfire/Mudslide Events | Settled Litigation | SED Settlement |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Charge for wildfire-related claims | $ 550 |  |  |  |  |  |  |  |  |  |  |  |
SCE | 2017/2018 Wildfire/Mudslide Events | Aggregate |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in accrued estimated losses |  |  |  |  |  |  |  |  |  |  | $ 8,800 |  |
SCE | November 2018 Wildfires | Woolsey Subrogation Settlement |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  | $ 2,200 | $ 2,200 |  |  |  |  |  |  |  |  |  |
Payment agreement for each dollar of claim | $ / claim |  |  |  | 0.67 |  |  |  |  |  |  |  |  |
SCE | 2017/2018 Wildfire/Mudslide Events, Excluding Certain Litigation | Individual Plaintiff Settlements |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Payments |  |  |  |  |  |  |  | $ 400 |  |  |  |  |
SCE | Post-2018 Wildfires |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in accrued estimated losses |  |  |  |  |  |  |  |  |  |  | 572 | 7 |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | 162 |  |
Total pre-tax charge |  |  |  |  |  |  |  |  |  |  | 11 | 7 |
Total after-tax charge |  |  |  |  |  |  |  |  |  |  | 8 | $ 5 |
Payments |  |  |  |  |  |  |  |  |  |  | 13 |  |
Charge for wildfire-related claims |  |  |  |  |  | 682 |  |  |  |  | 682 |  |
Expected insurance recoveries |  |  |  |  |  | 473 |  |  |  |  | 473 |  |
SCE | Post-2018 Wildfires | Wildfire expense memorandum account |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | (152) |  |
SCE | Post-2018 Wildfires | FERC balancing accounts |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | (14) |  |
SCE | Post-2018 Wildfires | Aggregate |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |  |  |  |
Expected revenue from FERC customers |  |  |  |  |  |  |  |  |  |  | 166 |  |
Total after-tax charge |  |  |  |  |  |  |  |  |  |  | 41 |  |
Charge for wildfire-related claims |  |  |  |  |  | 696 |  |  |  |  | 696 |  |
Expected insurance recoveries |  |  |  |  |  | $ 473 |  |  |  |  | $ 473 |  |

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