Debt, Letter of Credit Sublimit

No definition available.

Name:	pcg_DebtLetterOfCreditSublimit
Namespace Prefix:	pcg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Debt [Line Items]

+ References

No definition available.

+ Details

Name:	pcg_DebtLineItems
Namespace Prefix:	pcg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	dei_LegalEntityAxis=pcg_PacificGasElectricCoMember
Namespace Prefix:
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Balance Type:
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- Details

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- Details

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- Details

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- Details

Name:	dei_LegalEntityAxis=pcg_PGEARFacilityLLCMember
Namespace Prefix:
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- Details

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DEBT (Credit Facility) (Details) - USD ($)	Mar. 11, 2021	Apr. 22, 2021	Mar. 31, 2021	Dec. 31, 2020
Debt [Line Items]
Aggregate Limit			$ 6,500,000,000
Borrowings Outstanding			2,150,000,000
Letters of Credit Outstanding			979,000,000
Facility Availability			3,371,000,000
Revolving Credit Facility \| PG&E Corporation
Debt [Line Items]
Aggregate Limit			500,000,000
Borrowings Outstanding			0
Letters of Credit Outstanding			0
Facility Availability			500,000,000
Revolving Credit Facility \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Aggregate Limit			3,500,000,000
Borrowings Outstanding			0
Letters of Credit Outstanding			979,000,000
Facility Availability			2,521,000,000
Letter of credit sublimit			1,500,000,000
Term Loan, January 2022 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Aggregate Limit			1,500,000,000
Borrowings Outstanding			1,500,000,000
Letters of Credit Outstanding			0
Facility Availability			0
Term Loan, June 2021 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Repayments of debt	$ 1,500,000,000
Receivables Securitization Program \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Aggregate Limit			1,000,000,000
Borrowings Outstanding			650,000,000	$ 1,000,000,000.0
Letters of Credit Outstanding			0
Facility Availability			$ 350,000,000
Receivables Securitization Program \| PG&E AR Facility, LLC \| Subsequent event
Debt [Line Items]
Borrowings Outstanding		$ 888,000,000