Transactions with Affiliated Funds - Fees Earned from Affiliated Funds (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Transactions With Affiliated Funds [Abstract]
Fees earned from funds	$ 816	$ 739	$ 2,541	$ 2,181

Management fees, advisory fees, incentive fees or overrides from nonconsolidated investment funds.

No definition available.

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