v3.26.1
Commitments, Contingencies and Guarantees - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2025
Jun. 30, 2026
Dec. 31, 2025
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Summary Of Commitments And Contingent Liabilities [Line Items]              
Carrying value of lending commitments liabilities   $ 1,110 $ 1,040        
Lending commitment allowance   771 731 $ 792 $ 749 $ 707 $ 674
Estimated fair value of lending commitments liabilities held for investment   6,780 6,030        
Estimated fair value of lending commitments held for sale     0        
Commitments to invest in funds managed by the firm   857 1,000        
Securities Lending Indemnification              
Summary Of Commitments And Contingent Liabilities [Line Items]              
Maximum payout of indemnifications   $ 18,820 $ 15,580        
Collateral held   19.61 billion 16.22 billion        
Fixed Income Clearing Guarantees              
Summary Of Commitments And Contingent Liabilities [Line Items]              
Maximum payout of indemnifications   $ 135,560 $ 166,440        
Collateral held   135.41 billion 166.25 billion        
Level 2              
Summary Of Commitments And Contingent Liabilities [Line Items]              
Estimated fair value of lending commitments liabilities held for investment   $ 3,280 $ 3,440        
Level 3              
Summary Of Commitments And Contingent Liabilities [Line Items]              
Estimated fair value of lending commitments liabilities held for investment   3,500 $ 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