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OTHER CONTINGENCIES AND COMMITMENTS (Schedule Environmental Remediation Liability Composed) (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Commitments and Contingencies Disclosure [Abstract] |  |
Topock natural gas compressor station | $ 300 | $ 276
Hinkley natural gas compressor station | 102 | 104
Former MGP sites owned by the Utility or third parties | 809 | 809
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites | 75 | 107
Fossil fuel-fired generation facilities and sites | 18 | 19
Total environmental remediation liability | $ 1,304 | $ 1,315

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- Definition Utility records an environmental remediation liability when site assessments indicate that remediation is probable and the Utility can reasonably estimate the loss or a range of probable amounts. The Utility records an environmental remediation liability based on the lower end of the range of estimated probable costs, unless an amount within the range is a better estimate than any other amount + References No definition available. + Details
Name: | pcg_EnvironmentalRemediationLiability
Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Former Manufactured Gas Plant Sites Owned By Utility Or Third Parties + References No definition available. + Details
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Namespace Prefix: | pcg_
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- Definition Fossil Fuel-Fired Generation Facilities Formerly Owned By Utility + References No definition available. + Details
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Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Utility-Owned Natural Gas Compressor Site Near Hinkley, California + References No definition available. + Details
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Namespace Prefix: | pcg_
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- Definition Utility-Owned Natural Gas Compressor Site Near Topock, Arizona + References No definition available. + Details
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Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Utility-Owned Generation Facilities (Other Than For Fossil Fuel-Fired), Other Facilities, And Third-Party Disposal Sites + References No definition available. + Details
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Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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