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WILDFIRE-RELATED CONTINGENCIES (De-energization Securities Class Action) (Details) - De-energization Class Action $ in Millions | Feb. 16, 2021 USD ($)
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Loss Contingencies [Line Items] |
Litigation settlement, amount awarded from other party | $ 10
Litigation settlement, approval of settlement, escrow deposit, number of days | 14 days

X
- Definition Litigation Settlement, Approval of Settlement, Escrow Deposit, Number Of Days + References No definition available. + Details
Name: | pcg_LitigationSettlementApprovalOfSettlementEscrowDepositNumberOfDays
Namespace Prefix: | pcg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_LitigationCaseAxis=pcg_DeEnergizationClassActionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |