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WILDFIRE-RELATED CONTINGENCIES (Insurance Coverage) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2023 | Aug. 01, 2023 | Mar. 31, 2023 | Dec. 31, 2023 | Aug. 31, 2022 | Apr. 30, 2022
Insurance Coverage for Wildfire Events |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Liability insurance coverage |  |  |  |  | $ 600 | $ 340
Costs for insurance coverage |  | $ 516 | $ 263 |  |  |
Initial self-insured retention per occurrence |  |  |  | $ 60 |  |
Insurance commuted |  |  |  | 207 |  |
Insurance Coverage for Wildfire Events | Minimum |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Liability insurance coverage |  |  |  | 757 |  |
Insurance Coverage for Wildfire Events | Maximum |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Liability insurance coverage |  |  |  | 970 |  |
Insurance Coverage For Non-Wildfire Liabilities |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Liability insurance coverage | $ 710 |  |  |  |  |
Costs for insurance coverage | 167 |  |  |  |  |
Initial self-insured retention per occurrence | $ 10 |  |  |  |  |
Prepaid insurance |  |  |  | $ 61 |  |

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