Regulation and Capital Adequacy - Leverage Ratios (Detail) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||
| Tier 1 capital | $ 92,730 | $ 85,440 | $ 92,730 | $ 85,440 |
| Average total assets | 1,152,785 | 983,909 | ||
| Deductions from Tier 1 capital | (4,948) | (5,275) | ||
| Average adjusted total assets | 1,147,837 | 978,634 | 1,147,837 | 978,634 |
| Impact of SLR temporary amendment | (202,748) | |||
| Average off-balance-sheet exposures | 387,848 | 396,833 | 387,848 | 396,833 |
| Total leverage exposure | $ 1,332,937 | $ 1,375,467 | $ 1,332,937 | $ 1,375,467 |
| Tier 1 leverage ratio | 8.10% | 8.70% | 8.10% | 8.70% |
| SLR | 0.070 | 0.062 | 0.070 | 0.062 |
| GS Bank USA [Member] | ||||
| Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] | ||||
| Tier 1 capital | $ 30,656 | $ 29,176 | $ 30,656 | $ 29,176 |
| Average adjusted total assets | 283,869 | 220,974 | 283,869 | 220,974 |
| Total leverage exposure | $ 343,198 | $ 413,852 | $ 343,198 | $ 413,852 |
| Tier 1 leverage ratio | 10.80% | 13.20% | 10.80% | 13.20% |
| SLR | 0.089 | 0.070 | 0.089 | 0.070 |