Amount of total capital as defined by regulatory framework.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826

+ Details

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

- Definition

Ratio of total risk-based capital to risk-weighted assets as defined by regulatory framework.

+ References

+ Details

Name:	us-gaap_CapitalToRiskWeightedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of Common Equity Tier 1 risk-based capital as defined by regulatory framework.

+ References

+ Details

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

- Definition

Ratio of Common Equity Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.

+ References

+ Details

Name:	us-gaap_CommonEquityTierOneCapitalRatio
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
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_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of risk-weighted assets as defined by regulatory framework.

+ References

+ Details

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

- Definition

Amount of Tier 1 risk-based capital as defined by regulatory framework.

+ References

+ Details

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

- Definition

Ratio of Tier 1 risk-based capital to risk-weighted assets as defined by regulatory framework.

+ References

+ Details

Name:	us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of Tier 2 risk-based capital as defined by regulatory framework.

+ References

+ Details

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

- Details

Name:	gs_RegulatoryFrameworkAxis=gs_StandardizedCapitalRulesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	gs_RegulatoryFrameworkAxis=gs_AdvancedCapitalRulesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Regulation and Capital Adequacy - Risk-based Capital Ratios (Detail) $ in Millions	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Standardized Capital Rules [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 93,292			$ 81,641		$ 74,850
Tier 1 capital	102,580			92,730		85,440
Tier 2 capital	14,982			15,424		14,925
Total capital	117,562			108,154
RWAs	$ 663,936	$ 621,000	$ 595,000	$ 554,162	$ 535,000	563,575
CET1 capital ratio	14.1	14.4	14.3	14.7	14.5
Tier 1 capital ratio	15.5	15.9	15.9	16.7	16.6
Total capital ratio	17.7	18.3	18.4	19.5	19.6
Advanced Capital Rules [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 93,292			$ 81,641		74,850
Tier 1 capital	102,580			92,730		85,440
Tier 2 capital	12,625			13,279		13,473
Total capital	115,205			106,009
RWAs	$ 672,061			$ 609,750		$ 544,653
CET1 capital ratio	13.9			13.4
Tier 1 capital ratio	15.3			15.2
Total capital ratio	17.1			17.4
GS Bank USA [Member] \| Standardized Capital Rules [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 40,811			$ 34,687
Tier 1 capital	40,811			34,687
Tier 2 capital	6,259			6,312
Total capital	47,070			40,999
RWAs	$ 343,033			$ 280,877
CET1 capital ratio	11.9			12.3
Tier 1 capital ratio	11.9			12.3
Total capital ratio	13.7			14.6
GS Bank USA [Member] \| Advanced Capital Rules [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 40,811			$ 34,687
Tier 1 capital	40,811			34,687
Tier 2 capital	4,598			4,963
Total capital	45,409			39,650
RWAs	$ 221,831			$ 173,442
CET1 capital ratio	18.4			20.0
Tier 1 capital ratio	18.4			20.0
Total capital ratio	20.5			22.9