SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Wildfire Fund (Details) - USD ($) $ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Mar. 31, 2024 |
Jul. 12, 2019 |
|
| Public Utility, Property, Plant and Equipment [Line Items] | |||||
| Litigation liability, current | $ 193 | ||||
| Wildfire Fund asset | 301 | $ 450 | |||
| Litigation contribution, net | 4,100 | ||||
| Amortization and accretion | 383 | 567 | $ 477 | ||
| Pacific Gas & Electric Co (Utility) | |||||
| Public Utility, Property, Plant and Equipment [Line Items] | |||||
| Wildfire Fund asset | 301 | 450 | |||
| Amortization and accretion | 383 | $ 567 | $ 477 | ||
| Other Current Liabilities | |||||
| Public Utility, Property, Plant and Equipment [Line Items] | |||||
| Wildfire fund, noncurrent | $ 564 | ||||
| Wildfire Fund Asset | |||||
| Public Utility, Property, Plant and Equipment [Line Items] | |||||
| Finite-lived intangible asset, useful life | 20 years | 15 years | |||