Fair Value [Line Items]

No definition available.

Name:	gs_FairValueLineItems
Namespace Prefix:	gs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings And Other Comprehensive Income

+ References

No definition available.

+ Details

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

- Definition

This element represents total net realized gains or losses for the period, arising from liabilities 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_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityNetRealizedGainLossIncludedInEarnings
Namespace Prefix:	gs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents total net unrealized gains or losses for the period relating to instruments still held at the reporting date, arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in earnings and other comprehensive income.

+ References

No definition available.

+ Details

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

- Definition

Total contractual amount of unfunded commitments for which the fair value option was elected.

+ References

No definition available.

+ Details

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

- Definition

Fair value of unfunded commitments for which the fair value option was elected.

+ References

No definition available.

+ Details

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

- Definition

Other Secured Financing, Measurement Input.

+ References

No definition available.

+ Details

Name:	gs_OtherSecuredFinancingMeasurementInput
Namespace Prefix:	gs_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of gain (loss) recognized in income from liability 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_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of gain (loss) recognized in other comprehensive income (OCI) from liability 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)(1a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

+ Details

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

- Definition

This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of long-term debt instruments that have contractual principal amounts and for which the fair value option has been elected.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

+ Details

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

- Definition

This item represents the estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit risk arising from loans and other receivables held as assets.

+ 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 (c)(1)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612

+ Details

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

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=gs_UnsecuredLongTermBorrowingsAtFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=gs_OtherSecuredFinancingsAtFairValueMember
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_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=gs_OtherFinancialLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_OtherComprehensiveIncomeLocationAxis=gs_DebtValuationAdjustmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

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

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_WrittenLoanCommitmentFairValueOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Fair Value Option - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($) yr	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) yr	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) yr
Fair Value [Line Items]
Total contractual amount of unfunded commitments for which the fair value option was elected	$ 1,780		$ 1,780		$ 1,640
Net Gains (Losses) Attributable to the Impact of Changes in Instrument-Specific Credit Spreads on Loans and Lending Commitments For Which the Fair Value Option Was Elected	87	$ 73	290	$ (151)
Unsecured Long-Term Borrowings at Fair Value [Member]
Fair Value [Line Items]
Difference between aggregate contractual principal amount of long-term debt instruments for which the fair value option was elected and related fair value	$ 290		$ 290		$ 445
Minimum [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Yield [Member]
Fair Value [Line Items]
Other secured financing measurement input	1.4		1.4		1.4
Minimum [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Duration [Member]
Fair Value [Line Items]
Other secured financing measurement input \| yr	0.9		0.9		1.4
Maximum [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Yield [Member]
Fair Value [Line Items]
Other secured financing measurement input	6.4		6.4		7.1
Maximum [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Duration [Member]
Fair Value [Line Items]
Other secured financing measurement input \| yr	7.4		7.4		8.0
Weighted Average [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Yield [Member]
Fair Value [Line Items]
Other secured financing measurement input	2.5		2.5		2.7
Weighted Average [Member] \| Other Secured Financings at Fair Value [Member] \| Level 3 [Member] \| Fair Value Unobservable Inputs, Duration [Member]
Fair Value [Line Items]
Other secured financing measurement input \| yr	3.9		3.9		4.0
Other Financial Liabilities [Member]
Fair Value [Line Items]
Gains/(Losses) on liabilities	$ 638	(466)	$ 434	103
Realized Gains/(Losses) on liabilities	(181)	(112)	(388)	(244)
Net Unrealized Gains / (Losses)	819	(354)	822	347
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	(181)	(112)	(388)	(244)
Other Financial Liabilities [Member] \| Unsecured Long-Term Borrowings at Fair Value [Member]
Fair Value [Line Items]
Net Unrealized Gains / (Losses)	289	(167)	348	225
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	(64)	(64)	(196)	(171)
Other Financial Liabilities [Member] \| Other Secured Financings at Fair Value [Member]
Fair Value [Line Items]
Net Unrealized Gains / (Losses)	30	(67)	71	(12)
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	3	7	(1)	13
Other Financial Liabilities [Member] \| Debt Valuation Adjustment [Member]
Fair Value [Line Items]
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of comprehensive income	25	(138)	33	126
Other Financial Liabilities [Member] \| Market making [Member]
Fair Value [Line Items]
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	599	(289)	366	(38)
Other Financial Liabilities [Member] \| Other Principal Transactions [Member]
Fair Value [Line Items]
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	19	(32)	49	27
Other Financial Liabilities [Member] \| Interest Expense [Member]
Fair Value [Line Items]
Fair Value, Measured on Recurring Basis, Gains/(Losses) Included in condensed consolidated statements of earnings	(5)	$ (7)	(14)	$ (12)
Written Loan Commitment, Fair Value Option [Member]
Fair Value [Line Items]
Fair value of unfunded commitments for which the fair value option was elected	$ 39		$ 39		$ 25