Regulation and Capital Adequacy - Risk-Based Capital Ratios (Detail) $ in Millions	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Standardized
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 98,891	$ 98,050
Tier 1 capital	109,752	108,552
Tier 2 capital	15,193	15,958
Total capital	124,945	124,510
RWAs	$ 666,860	$ 653,419
CET1 capital ratio	0.148	0.150
Tier 1 capital ratio	0.165	0.166
Total capital ratio	0.187	0.191
Advanced
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 98,891	$ 98,050
Tier 1 capital	109,752	108,552
Tier 2 capital	11,245	12,115
Total capital	120,997	120,667
RWAs	$ 666,205	$ 679,450
CET1 capital ratio	0.148	0.144
Tier 1 capital ratio	0.165	0.160
Total capital ratio	0.182	0.178
GS Bank USA | Standardized
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 52,216	$ 46,845
Tier 1 capital	52,216	46,845
Tier 2 capital	6,179	8,042
Total capital	58,395	54,887
RWAs	$ 375,207	$ 357,112
CET1 capital ratio	0.139	0.131
Tier 1 capital ratio	0.139	0.131
Total capital ratio	0.156	0.154
GS Bank USA | Advanced
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 capital	$ 52,216	$ 46,845
Tier 1 capital	52,216	46,845
Tier 2 capital	3,021	5,382
Total capital	55,237	52,227
RWAs	$ 290,941	$ 275,451
CET1 capital ratio	0.179	0.170
Tier 1 capital ratio	0.179	0.170
Total capital ratio	0.190	0.190