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WILDFIRE-RELATED CONTINGENCIES (Insurance) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 28, 2022 | Aug. 01, 2023 | Apr. 01, 2023 | Sep. 30, 2022 | Aug. 31, 2021
Loss Contingencies [Line Items] |  |  |  |  |
Insurance premium costs, recovery, coverage amount |  |  |  | $ 1,400 |
Insurance Coverage for Wildfire Events |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Liability insurance coverage | $ 340 |  |  |  | $ 600
Initial self-insured retention per occurrence |  |  |  | 60 |
Insurance Coverage for Wildfire Events | Forecast |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Costs for insurance coverage |  | $ 516 | $ 263 |  |
Insurance Coverage For Non-Wildfire Liabilities |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Liability insurance coverage | 725 |  |  |  |
Costs for insurance coverage | $ 154 |  |  |  |
Initial self-insured retention per occurrence |  |  |  | 10 |
Prepaid insurance |  |  |  | $ 673 |

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