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WILDFIRE- RELATED CONTINGENCIES (Restructuring Support Agreement) (Details) - USD ($) $ in Millions | Jun. 12, 2020 | Dec. 06, 2019
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Fire Victim Trust |  |
Loss Contingencies [Line Items] |  |
Percentage of common stock owned, Fire Victim Trust if common issues additional shares | 22.19% |
Pacific Gas & Electric Co (Utility) |  |
Loss Contingencies [Line Items] |  |
Cash |  | $ 1,350
Pacific Gas & Electric Co (Utility) | Effective Date |  |
Loss Contingencies [Line Items] |  |
Cash contribution by company |  | 5,400
Pacific Gas & Electric Co (Utility) | On Or Before January 15, 2021 |  |
Loss Contingencies [Line Items] |  |
Cash |  | 758
Pacific Gas & Electric Co (Utility) | On Or Before January 15, 2022 |  |
Loss Contingencies [Line Items] |  |
Cash |  | $ 592

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