Debt Instrument, Extension Option, Term

No definition available.

Name:	pcg_DebtInstrumentExtensionOptionTerm
Namespace Prefix:	pcg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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

Debt, Number of Extension Options

+ References

No definition available.

+ Details

Name:	pcg_DebtNumberOfExtensionOptions
Namespace Prefix:	pcg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Intercompany Note

+ References

No definition available.

+ Details

Name:	pcg_IntercompanyNote
Namespace Prefix:	pcg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Loss Contingency, Customer Harm Threshold, Post-emergence Transaction, Debt Retirement

+ References

No definition available.

+ Details

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

- Definition

Loss Contingency, Customer Harm Threshold, Post-emergence Transaction, Securitized

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ 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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

+ Details

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

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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=123570139&loc=d3e3291-108585

+ Details

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

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

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

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=pcg_NothernCaliforniaWildFireMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RegulatoryAssetAxis=pcg_FireRiskMitigationCapitalExpendituresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=pcg_PacificGasElectricCoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_TermLoanCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_A364DayTermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_A18MonthTermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_IntercompanyLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_RecoveryBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	pcg_TranchePeriodAxis=pcg_TrancheOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	pcg_TranchePeriodAxis=pcg_TrancheTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	pcg_TranchePeriodAxis=pcg_TrancheThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsExchangeStatedMaturity2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsExchangeStatedMaturity2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsExchangeStatedMaturity2041Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsExchangeStatedMaturity2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsVariableStatedMaturity2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsDueNovember152021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsStatedMaturity2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_FirstMortgageBondsStatedMaturity2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pcg_TermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

DEBT (Narrative) (Details)						1 Months Ended	12 Months Ended
DEBT (Narrative) (Details)	Feb. 08, 2022 USD ($)	Nov. 15, 2021 USD ($)	Aug. 11, 2021 USD ($)	Jun. 24, 2021 USD ($)	Jul. 01, 2020 USD ($) numberOfClaimHolder numberOfExtensionOption	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 12, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 22, 2021 USD ($)	Apr. 23, 2021 USD ($)	Feb. 24, 2021 USD ($)	Apr. 30, 2020 USD ($)
Debt [Line Items]
Repayments of long term debt							$ 87,000,000	$ 764,000,000	$ 0
Intercompany note to PG&E Corporation			$ 145,000,000
2017 Northern California wildfires
Debt [Line Items]
Customer Harm Threshold, post-emergence transaction, securitized													$ 7,500,000,000		$ 7,500,000,000
Customer Harm Threshold, post-emergence transaction, debt retirement															$ 6,000,000,000
2017 Northern California wildfires \| Fire Risk Mitigation Capital Expenditures
Debt [Line Items]
Customer Harm Threshold, post-emergence transaction, securitized				$ 1,190,000,000										$ 1,190,000,000
PG&E Corporation
Debt [Line Items]
Repayments of long term debt							28,000,000	664,000,000	0
Intercompany note to PG&E Corporation							(145,000,000)	0	0
Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Repayments of long term debt							59,000,000	100,000,000	0
Intercompany note to PG&E Corporation							145,000,000	0	$ 0
Revolving Credit Facility
Debt [Line Items]
Line of credit facility, maximum borrowing capacity							6,941,000,000
Revolving Credit Facility \| PG&E Corporation
Debt [Line Items]
Line of credit facility, maximum borrowing capacity					$ 500,000,000		500,000,000
Debt, number of extension options \| numberOfExtensionOption					2
Debt instrument, extension option, term					1 year
Revolving Credit Facility \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Line of credit facility, maximum borrowing capacity					$ 3,500,000,000		4,000,000,000					$ 4,000,000,000
Debt, number of extension options \| numberOfClaimHolder					2
Debt instrument, extension option, term					1 year
Repayments of debt		$ 300,000,000
Term Loan Credit Facility \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Line of credit facility, maximum borrowing capacity					$ 3,000,000,000
364-Day Term Loan Facility \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Line of credit facility, maximum borrowing capacity					$ 1,500,000,000
Debt instrument, term					364 days	364 days
Repayments of debt						$ 1,500,000,000
18-Month Term Loan Facility \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Line of credit facility, maximum borrowing capacity					$ 1,500,000,000
Debt instrument, term					18 months
Intercompany Loan
Debt [Line Items]
Debt instrument, term			364 days
Recovery Bonds \| Senior Secured Superpriority Debt
Debt [Line Items]
Debt instrument, face amount							860,000,000	$ 0		$ 860,000,000
Recovery Bonds \| Senior Secured Superpriority Debt \| Tranche One
Debt [Line Items]
Debt instrument, face amount										$ 266,000,000
Interest rate										1.46%
Recovery Bonds \| Senior Secured Superpriority Debt \| Tranche Two
Debt [Line Items]
Debt instrument, face amount										$ 160,000,000
Interest rate										2.28%
Recovery Bonds \| Senior Secured Superpriority Debt \| Tranche Three
Debt [Line Items]
Debt instrument, face amount										$ 434,000,000
Interest rate										2.82%
Recovery Bonds \| 2017 Northern California wildfires \| Fire Risk Mitigation Capital Expenditures
Debt [Line Items]
Proceeds from issuance of debt				1,200,000,000
Debt issuance costs				$ 13,300,000
First Mortgage Bonds, Exchange Stated Maturity 2023 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount						$ 1,500,000,000
Interest rate						1.367%
First Mortgage Bonds, Exchange Stated Maturity 2031 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount						$ 450,000,000
Interest rate						3.25%
First Mortgage Bonds, Exchange Stated Maturity 2041 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount						$ 450,000,000
Interest rate						4.20%
First Mortgage Bonds, Exchange Stated Maturity 2028
Debt [Line Items]
Debt instrument, face amount											$ 800,000,000
Interest rate											3.00%
First Mortgage Bonds, Variable, Stated Maturity 2022 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		300,000,000
First Mortgage Bonds due November 15, 2021 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Repayments of debt		1,450,000,000
First Mortgage Bonds, Stated Maturity 2023 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		$ 900,000,000
Interest rate		1.70%
First Mortgage Bonds, Stated Maturity 2031 \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Debt instrument, face amount		$ 550,000,000
Interest rate		3.25%
Term Loan \| Pacific Gas & Electric Co (Utility)
Debt [Line Items]
Line of credit facility, maximum borrowing capacity							$ 1,441,000,000
Term Loan \| Pacific Gas & Electric Co (Utility) \| Subsequent Event
Debt [Line Items]
Repayments of long term debt	$ 142,500,000