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WILDFIRE-RELATED CONTINGENCIES (Wildfire-Related Securities Class Action Litigation) (Details) | Mar. 17, 2021 objection | Feb. 22, 2019 offering | Dec. 31, 2018 lawsuit | Sep. 30, 2018 lawsuit
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Loss Contingencies [Line Items] |  |  |  |
Number of omnibus objection (objection) | objection | 16 |  |  |
Wildfire-Related Class Action |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed against company (lawsuit) |  |  |  | 2
Number of public offerings of notes with complaints against underwriters (offering) | offering |  | 4 |  |
Satisfaction of HoldCo Rescission or Damage Claims and Subordinated Debt |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of lawsuits filed against company (lawsuit) |  |  | 3 |

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