XML 79 R59.htm IDEA: XBRL DOCUMENT
v3.8.0.1

CONTINGENCIES AND COMMITMENTS (Schedule of Environmental Remediation Liability) (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Commitments and Contingencies Disclosure [Abstract] |  |
Topock natural gas compressor station | $ 342 | $ 334
Hinkley natural gas compressor station | 144 | 147
Former manufactured gas plant sites owned by the Utility or third parties | 329 | 320
Utility-owned generation facilities (other than fossil fuel-fired), other facilities, and third-party disposal sites | 113 | 115
Fossil fuel-fired generation facilities and sites | 157 | 123
Total environmental remediation liability | $ 1,085 | $ 1,039

X
- 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

X
- Definition Former Mgp Sites Owned By Utility Or Third Parties + References No definition available. + Details
Name: | pcg_FormerManufacturedGasPlantSitesOwnedByUtilityOrThirdParties
Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fossil Fuel-Fired Generation Facilities Formerly Owned By Utility + References No definition available. + Details
Name: | pcg_FossilFuelFiredGenerationFacilitiesFormerlyOwnedByUtility
Namespace Prefix: | pcg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

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

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

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration