v3.26.1
Fair Value Hierarchy - Investments, Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Level 3        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) $ (5) $ 15 $ (6) $ 26
Level 3 | Income Statement Location [Axis]: us-gaap:InterestAndDividendIncomeOperating        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) 2 5 6 9
Level 3 | Income Statement Location [Axis]: gs:OtherPrincipalTransactions        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) (7) 10 (12) 17
Investments        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) 84 87 159 159
Net unrealized gains/(losses) (93) 183 (275) 287
Investments | Income Statement Location [Axis]: us-gaap:InterestAndDividendIncomeOperating        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) 79 74 146 146
Investments | Income Statement Location [Axis]: gs:OtherPrincipalTransactions        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) (88) 196 (262) 300
Investments | Level 3        
Fair Value Measurement Inputs and Valuation Techniques [Line Items]        
Net realized gains/(losses) $ (9) $ 270 $ (116) $ 446