Allowance for loan losses as a percentage of total gross loans receivable.

No definition available.

Name:	gs_AllowanceForLoanLossToGrossLoanReceivable
Namespace Prefix:	gs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of lending commitments held-for-investment.

+ References

No definition available.

+ Details

Name:	gs_AmountOfLendingCommitmentsHeldForInvestment
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Annualized net charge-offs as a percentage of average total gross loans receivable.

+ References

No definition available.

+ Details

Name:	gs_AnnualizedNetChargeoffsAsAPercentageOfAverageTotalGrossLoansReceivable
Namespace Prefix:	gs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Loans modifications subject to CARES ACT / Interagency guidance that were not classified as TDR based on this guidance.

+ References

No definition available.

+ Details

Name:	gs_CaresActInteragencyTdrRelief
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Change in allowance for losses on loans and lending commitments.

+ References

No definition available.

+ Details

Name:	gs_ChangeInAllowanceForLossesOnLoansAndLendingCommitments
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Changes in allowance for credit loss from period activity.

+ References

No definition available.

+ Details

Name:	gs_ChangesInAllowanceForCreditLoss
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of commitment to acquire loan portfolio.

+ References

No definition available.

+ Details

Name:	gs_CommitmentAcquireLoanPortfolio
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

No definition available.

+ Details

Name:	gs_ConcentrationRiskPercentage
Namespace Prefix:	gs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents total net realized gains or losses for the period, arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings.

+ References

No definition available.

+ Details

Name:	gs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetRealizedGainLossIncludedInEarnings
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Impact of CECL adoption.

+ References

No definition available.

+ Details

Name:	gs_ImpactOfCECLAdoption
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Lending commitments allowance impact of CECL adoption.

+ References

No definition available.

+ Details

Name:	gs_LendoingCommitmentsAllowanceImpactOfCeclAdoption
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Loans and leases receivable allowance impact of CECL adoption.

+ References

No definition available.

+ Details

Name:	gs_LoansAndLeasesReceivableAllowanceImpactOfCeclAdoption
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of loans that were rated passed or non-criticized.

+ References

No definition available.

+ Details

Name:	gs_PercentageOfLoansThatWerePassedOrNonCriticized
Namespace Prefix:	gs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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

- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612

+ Details

Name:	us-gaap_FairValueOptionChangesInFairValueGainLoss1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of financing receivable modified as troubled debt restructuring.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121585226&loc=d3e18845-111554

+ Details

Name:	us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

+ Details

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

- Definition

Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

+ References

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

+ Details

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

- Details

Name:	us-gaap_UnusualRiskOrUncertaintyByNatureAxis=gs_Covid19Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablesPeriodPastDueAxis=gs_FinancialAssetEqualToOrGreaterThan30DaysPastDueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CreditCardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	gs_LoanByTypeAxis=gs_OtherPrincipalTransactionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_CorporateAndCommercialRealEstateLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_DiversifiedIndustrialsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_TechnologyMediaTelecommunicationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_FundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_NaturalResourcesUtilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_FinancialInstitutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=gs_CreditCardReceivablesIssuedToCustomersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_InterestIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	gs_LoanByTypeAxis=gs_LoansNonTradingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Loans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Loans Receivable [Line Items]
Gains/(Losses) as a result of changes in the fair value	$ 801	$ (701)	$ (2,782)	$ 311
Impaired loans receivable (excluding PCI loans) on non-accrual status	$ 2,709		$ 2,709		$ 3,552
Allowance for loan losses as a percentage of total gross loans receivable	2.60%	3.70%	2.60%	3.70%	3.70%
Annualized net charge-offs as a percentage of average total gross loans receivable	0.20%	1.30%	0.20%	1.00%	0.90%
Amount Of Lending Commitments Held For Investment	$ 198,358		$ 198,358		$ 162,513
Percentage of loans that were rated pass/non-criticized	89.00%		89.00%		85.00%
Change in allowance for credit losses	$ 72	$ (62)	$ (266)	$ 2,530
Concentration Risk,Percentage			100.00%		100.00%
Impact of CECL adoption					$ 727
Impact of CECL adoption					(48)
Changes in allowance for credit loss				1,850
Impact of CECL adoption		679		679	679
Provision for credit losses	175	$ 278	$ 13	$ 2,805
COVID 19 [Member]
Loans Receivable [Line Items]
CARES Act/Interagency TDR relief	219		219		184
PCI Loans [Member]
Loans Receivable [Line Items]
Impact of CECL adoption					(169)
Financial Asset, Equal to or Greater than 30 Days Past Due [Member]
Loans Receivable [Line Items]
Impaired loans receivable (excluding PCI loans) on non-accrual status	$ 237		$ 237		$ 533
Wholesale [Member]
Loans Receivable [Line Items]
Allowance for loan losses as a percentage of total gross loans receivable	1.80%	2.80%	1.80%	2.80%	2.70%
Annualized net charge-offs as a percentage of average total gross loans receivable	0.10%	1.20%	0.10%	0.70%	0.60%
Nonaccrual loans, for which allowance for credit losses was measured	$ 2,660		$ 2,660		$ 3,510
Nonaccrual loans, allowance for credit losses	575		575		649
Nonaccrual loans, for which no allowance for credit losses required	$ 161		$ 161		584
Impact of CECL adoption					$ 452
Consumer [Member]
Loans Receivable [Line Items]
Allowance for loan losses as a percentage of total gross loans receivable	12.40%	16.10%	12.40%	16.10%	15.90%
Annualized net charge-offs as a percentage of average total gross loans receivable	1.60%	3.70%	2.40%	4.50%	4.20%
Impact of CECL adoption					$ 444
Credit cards [Member]
Loans Receivable [Line Items]
Provision for credit losses			$ 185
Commitment to acquire loan portfolio	$ 2,000		2,000
Other Principal Transactions [Member]
Loans Receivable [Line Items]
Gains/(Losses) as a result of changes in the fair value	30	$ 64	223	$ 49
Corporate And Commercial Real Estate Loans [Member]
Loans Receivable [Line Items]
Loans modified in troubled debt restructuring	307		$ 307		$ 315
Diversified Industrials [Member]
Loans Receivable [Line Items]
Concentration Risk,Percentage			15.00%		17.00%
Technology Media Telecommunications [Member]
Loans Receivable [Line Items]
Concentration Risk,Percentage			20.00%		17.00%
Funds [Member]
Loans Receivable [Line Items]
Concentration Risk,Percentage			19.00%		13.00%
Natural Resources Utilities [Member]
Loans Receivable [Line Items]
Concentration Risk,Percentage			8.00%		12.00%
Financial Institutions [Member]
Loans Receivable [Line Items]
Concentration Risk,Percentage			8.00%		10.00%
Credit Card Receivables Issued To Customers [Member]
Loans Receivable [Line Items]
Amount Of Lending Commitments Held For Investment	29,790		$ 29,790		$ 21,640
Level 3 [Member]
Loans Receivable [Line Items]
Net gains / (losses) on assets	7	99	41	94
Level 3 [Member] \| Interest Income [Member]
Loans Receivable [Line Items]
Net gains / (losses) on assets	14	13	26	24
Level 3 [Member] \| Loans Non Trading [Member]
Loans Receivable [Line Items]
Net unrealized gains / (losses) on assets	(16)	76	(31)	34
Net realized gains / (losses) on assets	23	23	72	60
Level 3 [Member] \| Other Principal Transactions [Member]
Loans Receivable [Line Items]
Net gains / (losses) on assets	$ (7)	$ 86	$ 15	$ 70