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REGULATORY ASSETS, LIABILITIES, AND BALANCING ACCOUNTS (Long-Term Regulatory Assets) (Details) - USD ($) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Feb. 28, 2022
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 17,189 | $ 16,443 |  |
Utility retained generation asset costs | 1,200 |  |  |
Customer Harm Threshold, post-emergence transaction, recovery bonds issued |  |  |  | $ 7,500
Initial shareholder contribution | 2,000 |  |  |
Pacific Gas & Electric Co (Utility) |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | 17,189 | 16,443 |  |
Pension benefits |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | 348 | 120 |  |
Environmental compliance costs |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1,218 | 1,193 |  |
Recovery Period | 32 years |  |  |
Utility retained generation |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 39 | 86 |  |
Recovery Period | 4 years |  |  |
Price risk management |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 160 | 177 |  |
Recovery Period | 16 years 6 months |  |  |
Catastrophic event memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1,074 | 1,085 |  |
Catastrophic event memorandum account | COVID-19 |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 43 | 44 |  |
Catastrophic event memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Catastrophic event memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
Wildfire expense memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 540 | 439 |  |
Fire hazard prevention memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 7 | 79 |  |
Fire hazard prevention memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Fire hazard prevention memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 2 years |  |  |
Fire risk mitigation memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 110 | 65 |  |
Fire risk mitigation memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Fire risk mitigation memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
Wildfire mitigation plan memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 541 | 756 |  |
Wildfire mitigation plan memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Wildfire mitigation plan memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
Deferred income taxes |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 3,543 | 2,730 |  |
Recovery Period | 51 years |  |  |
Insurance premium costs |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1 | 99 |  |
Insurance premium costs | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 2 years |  |  |
Insurance premium costs | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 4 years |  |  |
Wildfire mitigation balancing account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 120 | 327 |  |
Wildfire mitigation balancing account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Cost percentage threshold requiring approval | 115.00% |  |  |
Wildfire mitigation balancing account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 4 years |  |  |
Vegetation management balancing account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1,538 | 2,276 |  |
Cost percentage threshold requiring approval | 120.00% |  |  |
Vegetation management balancing account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Vegetation management balancing account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
COVID-19 Pandemic protection memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 17 | 26 |  |
COVID-19 Pandemic protection memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
COVID-19 Pandemic protection memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
COVID-19 pandemic protection memorandum account, undercollection bad debt |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 5 | 4 |  |
COVID-19 pandemic protection memorandum account, program and accounts receivable financing costs |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | 12 | 22 |  |
Microgrid memorandum account |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 59 | 213 |  |
Microgrid memorandum account | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
Microgrid memorandum account | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 3 years |  |  |
Financing costs |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 196 | 211 |  |
SB 901 Securitization |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 5,249 | 5,378 | $ 5,500 |
Recovery Period | 30 years |  |  |
Recoveries in excess of AROs |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 73 | 120 |  |
General rate case memorandum accounts |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1,291 | 0 |  |
General rate case memorandum accounts | Minimum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 1 year |  |  |
General rate case memorandum accounts | Maximum |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Recovery Period | 2 years |  |  |
Other |  |  |  |
Regulatory Assets [Line Items] |  |  |  |
Regulatory assets | $ 1,065 | $ 1,063 |  |

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- Definition Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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