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WILDFIRE-RELATED CONTINGENCIES (Wildfire-Related Securities Class Action Litigation and Debt Claims) (Details) - Wildfire-Related Class Action $ in Millions | Mar. 31, 2022 USD ($) | Feb. 22, 2019 notice | Jun. 30, 2018 lawsuit
--- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |
Number of lawsuits filed against company (lawsuit, complaint) | lawsuit |  |  | 2
Number of public offerings of notes with complaints against underwriters (offering) | notice |  | 4 |
Percentage of common stock owned, Fire Victim Trust if common issues additional shares | 22.19% |  |
Liability insurance coverage | $ | $ 400 |  |

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