Collateralized Agreements and Financings - Financial Instruments Received as Collateral and Repledged (Parenthetical) (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Collateralized Agreements And Financings [Abstract]
Securities received under resale agreements and securities borrowed transactions segregated to satisfy certain regulatory requirements	$ 14,650	$ 6,150
Securities segregated for regulatory and other purposes	$ 39,320	$ 20,610

Securities Received Under Resale Agreements And Securities Borrowed Transactions Segregated To Satisfy Certain Regulatory Requirements

No definition available.

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