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WILDFIRE-RELATED CONTINGENCIES (Wildfire Assistance Fund) (Details) - USD ($) $ in Millions | Aug. 02, 2019 | Jun. 30, 2019 | May 24, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |  |
Wildfire-related claims |  | $ 100 |  | $ 14,226
2018 Camp Fire and 2017 Northern California Wildfires |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Wildfire Assistance Fund, amount sought |  |  | $ 105 |
Wildfire Assistance Fund, amount sought, portion available for administrative expenses |  |  | $ 5 |
Pacific Gas & Electric Co |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Wildfire-related claims |  | $ 100 |  | $ 14,226
Subsequent Event | 2018 Camp Fire and 2017 Northern California Wildfires |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Wildfire-related claims | $ 105 |  |  |

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