Regulation and Capital Adequacy - Leverage Ratios (Detail) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Sep. 30, 2021 |
Dec. 31, 2020 |
|
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Tier 1 capital | $ 102,580 | $ 92,730 |
| Average total assets | 1,410,173 | 1,152,785 |
| Deductions from Tier 1 capital | (5,272) | (4,948) |
| Average adjusted total assets | 1,404,901 | 1,147,837 |
| Impact of SLR temporary amendment | (202,748) | |
| Average off-balance-sheet exposures | 439,373 | 387,848 |
| Total leverage exposure | $ 1,844,274 | $ 1,332,937 |
| Tier 1 leverage ratio | 7.30% | 8.10% |
| SLR | 0.056 | 0.070 |
| GS Bank USA [Member] | ||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||
| Tier 1 capital | $ 40,811 | $ 34,687 |
| Average adjusted total assets | 374,396 | 310,690 |
| Total leverage exposure | $ 608,770 | $ 381,637 |
| Tier 1 leverage ratio | 10.90% | 11.20% |
| SLR | 0.067 | 0.091 |