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Commitments and Contingencies (Recovery of Wildfire-Related Costs) (Details) - USD ($) $ in Millions |  |  | 1 Months Ended
--- | --- | --- | ---
Jan. 01, 2020 | Jul. 12, 2019 | Apr. 30, 2019
Southern California Edison | CPUC |  |  |
Loss Contingencies [Line Items] |  |  |
Additional ROE |  |  | 6.00%
Southern California Edison | FERC |  |  |
Loss Contingencies [Line Items] |  |  |
Additional ROE |  |  | 6.00%
Subsequent event | Southern California Edison |  |  |
Loss Contingencies [Line Items] |  |  |
Initial contribution |  | $ 2,400 |
Annual contribution |  | 95 |
Subsequent event | SCE, SDG&E and PG&E |  |  |
Loss Contingencies [Line Items] |  |  |
Annual contribution |  | 3,000 |
Subsequent event | SCE and SDG&E |  |  |
Loss Contingencies [Line Items] |  |  |
Initial contribution |  | 2,700 |
Annual contribution |  | $ 1,000 |
Forecast |  |  |
Loss Contingencies [Line Items] |  |  |
Anticipated raise from issuance of equity | $ 1,200 |  |
Forecast | Southern California Edison |  |  |
Loss Contingencies [Line Items] |  |  |
Anticipated issuance of long-term debt | $ 1,200 |  |
Forecast | Subsequent event | Southern California Edison |  |  |
Loss Contingencies [Line Items] |  |  |
Maximum aggregate requirement to reimburse the insurance fund percent |  | 20.00% |
Initial Liability Cap |  | $ 2,500 |
Excluded wildfire risk mitigation capital expenditures |  | $ 1,600 |

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