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WILDFIRE-RELATED CONTINGENCIES (Self-Insurance) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
CPUC |  |
Loss Contingencies [Line Items] |  |
Self insurance rate |  | $ 400.0
Increase in self insurance amount to be collected, percentage |  | 50.00%
Self insurance deductible, percent |  | 0.05
Self insurance deductible maximum |  | $ 50.0
CPUC | Forecast |  |
Loss Contingencies [Line Items] |  |
Self insurance rate | $ 1,000.0 |
TO21 |  |
Loss Contingencies [Line Items] |  |
Self insurance rate |  | 100.0
PERS |  |
Loss Contingencies [Line Items] |  |
Self insurance contributions |  | 340.0
Self insurance contributions, minimum capital and surplus requirements |  | $ 8.0

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