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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Estimated Useful Lives and Balances of Utilities Property, Plant and Equipment) (Details) - Pacific Gas & Electric Co (Utility) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 115,414 | $ 107,153
Accumulated depreciation | (33,093) | (30,946)
Net property, plant, and equipment | 82,321 | 76,207
Electricity generating facilities |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | 11,423 | 11,781
Electricity generating facilities | Northern California Wildfire |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 1,700 |
Electricity generating facilities | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 3 years |
Electricity generating facilities | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 75 years |
Electricity distribution facilities |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 45,205 | 41,061
Electricity distribution facilities | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 10 years |
Electricity distribution facilities | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 70 years |
Electricity transmission facilities |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 17,562 | 16,413
Electricity transmission facilities | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 15 years |
Electricity transmission facilities | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 75 years |
Natural gas distribution facilities |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 16,324 | 15,366
Natural gas distribution facilities | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 20 years |
Natural gas distribution facilities | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 60 years |
Natural gas transmission and storage facilities |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 10,496 | 9,859
Natural gas transmission and storage facilities | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 5 years |
Natural gas transmission and storage facilities | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 70 years |
General plant and other |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 9,165 | 8,518
General plant and other | Minimum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 5 years |
General plant and other | Maximum |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives (years) | 50 years |
Financing lease |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 787 | 18
Construction work in progress |  |
Public Utility, Property, Plant and Equipment [Line Items] |  |
Total property, plant, and equipment | $ 4,452 | $ 4,137

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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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