v3.25.4
Fair Value Hierarchy - Loans, Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value option gains/(losses) $ (13,242) $ (6,400) $ (9,791)
Loans Receivable      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) 28 33  
Net unrealized gains/(losses) $ (9) $ (41)  
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest income Interest income  
Trading cash instruments, fair value disclosure      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) $ 93 $ 168  
Net realized gains/(losses) 104 161  
Net unrealized gains/(losses) (11) 7  
Trading cash instruments, fair value disclosure | Interest income      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) $ 79 $ 68  
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest income Interest income  
Trading cash instruments, fair value disclosure | Market making      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) $ 14 $ 100  
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest income Interest income  
Liabilities      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Interest income Interest income  
Other principal transactions      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Fair value option gains/(losses) $ 115 $ 0  
Level 3      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) 19 (8)  
Level 3 | Other principal transactions      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) (2) (13)  
Level 3 | Interest income      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Net realized gains/(losses) $ 21 $ 5