Derivatives and Hedging Activities - Summary of Information About CVA and FVA (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
CVA, net of hedges	$ 103	$ 40	$ 52	$ (158)
FVA, net of hedges	101	(11)	(78)	261
Total	$ 204	$ 29	$ (26)	$ 103

This item represents the estimated gains or losses, including hedges, included in earnings attributable to the impact of changes in credit exposure and credit spreads on derivative contracts (including derivative assets and liabilities and related hedges).

No definition available.

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