v3.26.1
Commitments, Contingencies and Guarantees - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Aug. 31, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Summary Of Commitments And Contingent Liabilities [Line Items]          
Carrying value of lending commitments liabilities   $ 1,080 $ 1,040    
Lending commitment allowance   792 731 $ 707 $ 674
Estimated fair value of lending commitments liabilities held for investment   6,870 6,030    
Estimated fair value of lending commitments held for sale   158 0    
Commitments to invest in funds managed by the firm   952 1,000    
Securities Lending Indemnification          
Summary Of Commitments And Contingent Liabilities [Line Items]          
Maximum payout of indemnifications   $ 16,520 $ 15,580    
Collateral held   17.26 billion 16.22 billion    
Fixed Income Clearing Guarantees          
Summary Of Commitments And Contingent Liabilities [Line Items]          
Maximum payout of indemnifications   $ 140,960 $ 166,440    
Collateral held   140.93 billion 166.25 billion    
Level 2          
Summary Of Commitments And Contingent Liabilities [Line Items]          
Estimated fair value of lending commitments liabilities held for investment   $ 3,780 $ 3,440    
Level 3          
Summary Of Commitments And Contingent Liabilities [Line Items]          
Estimated fair value of lending commitments liabilities held for investment   3,090 $ 2,590    
GS Malaysia Development Berhad | Guarantee Obligations          
Summary Of Commitments And Contingent Liabilities [Line Items]          
Maximum payout of indemnifications   $ 1,400      
Guarantor obligations, requested payment $ 1,000