Regulation and Capital Adequacy - Leverage Ratios (Detail) $ in Millions	Jan. 01, 2026	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio		0.040	0.040
SLR		0.050	0.050
Minimum supplementary leverage ratio		0.03	0.03
Minimum supplementary leverage ratio buffer		0.02	0.02
Tier 1 capital		$ 118,943	$ 115,647
Average adjusted total assets		1,810,007	1,692,500
Total leverage exposure		$ 2,297,597	$ 2,120,756
Tier 1 leverage ratio		0.066	0.068
SLR		0.052	0.055
Subsequent Event
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
SLR	0.0375
Minimum supplementary leverage ratio	0.03
G-SIB Surcharge	0.50
SLR	0.75%
Reportable Legal Entities
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio		0.040	0.040
SLR		0.060	0.060
Tier 1 capital		$ 64,071	$ 62,022
Average adjusted total assets		656,463	565,513
Total leverage exposure		$ 912,004	$ 775,170
Tier 1 leverage ratio		0.098	0.110
SLR		0.070	0.080

Banking Regulation, Supplementary Leverage Ratio, G-SIB Surcharge, Percent

No definition available.

Name:	gs_BankingRegulationSupplementaryLeverageRatioGSIBSurchargePercent
Namespace Prefix:	gs_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Supplementary Leverage Exposure

+ References

No definition available.

+ Details

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

- Definition

Supplementary Leverage Ratio Required, Supplementary Leverage Buffer

+ References

No definition available.

+ Details

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

- Definition

Tier One Capital Adjusted Assets Amount

+ References

No definition available.

+ Details

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

- Definition

Minimum leverage buffer percentage as defined by regulatory framework.

+ References

+ Details

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

- Definition

Ratio of minimum Tier 1 risk-based capital to total leverage exposure required for capital adequacy as defined by regulatory framework.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

+ Details

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

- Definition

Ratio of minimum Tier 1 risk-based capital to total leverage exposure categorized as well capitalized as defined by regulatory framework for prompt corrective action.

+ References

+ Details

Name:	us-gaap_BankingRegulationSupplementaryLeverageRatioWellCapitalizedMinimum
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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

+ Details

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

- Definition

Ratio of Tier 1 risk-based capital to total leverage exposure as defined by regulatory framework.

+ References

+ Details

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

- Definition

Amount of Tier 1 leverage capital as defined by regulatory framework.

+ References

+ Details

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

- Definition

Ratio of minimum Tier 1 leverage capital to average assets required for capital adequacy as defined by regulatory framework.

+ References

+ Details

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

- Definition

Ratio of Tier 1 capital to average assets as defined by regulatory framework.

+ References

+ Details

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

- Details

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

- Details

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