v3.26.1
Fair Value Measurements - Fair Value Measurement (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets    
Derivative assets, net   $ 7
Liabilities    
Securities sold, not yet purchased $ 1,000 1,382
Derivative liabilities, net 828 595
Recurring measurement    
Assets    
Investments 1,391 2,149
Derivative assets, net   7
Assets 1,391 2,156
Liabilities    
Securities sold, not yet purchased 1,000 1,382
Derivative liabilities, net 828 595
RFS obligations 408 72
Liabilities 2,236 2,049
Recurring measurement | Level 1    
Assets    
Investments 1,388 2,108
Assets 1,388 2,108
Liabilities    
Securities sold, not yet purchased 1,000 1,382
Liabilities 1,000 1,382
Recurring measurement | Level 2    
Assets    
Derivative assets, net   7
Assets   7
Liabilities    
Derivative liabilities, net 828 595
RFS obligations 408 72
Liabilities 1,236 667
Recurring measurement | Level 3    
Assets    
Investments 3 41
Assets $ 3 $ 41