v3.26.1
Segment Reporting And Geographic Information (Segment Table) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Total net revenues $ 1,896 $ 1,480 $ 3,565 $ 2,907  
Transaction based fees [1] 114 94 196 196  
Non-transaction based fees [1] 28 22 52 41  
Employee compensation [2] 154 142 307 285  
Advertising [3] 27 26 55 47  
Other expenses [4] 117 92 211 179  
Total non-interest expenses 440 376 821 748  
Income before income taxes 1,456 1,104 2,744 2,159  
Income tax expense 118 98 235 189  
Net income 1,338 1,006 2,509 1,970  
Total Segment Assets 247,309 181,475 247,309 181,475 $ 203,240
Total Depreciation and Amortization [5] 17 15 33 30  
Operating Segments [Member]          
Segment Reporting [Line Items]          
Total Segment Assets $ 247,309 $ 181,475 $ 247,309 $ 181,475  
[1] Reported in “Execution, clearing and distribution fees” in the condensed consolidated statements of comprehensive income.
[2] Reported in “Employee compensation and benefits” in the condensed consolidated statements of comprehensive income.
[3] Reported in “General and administrative” in the condensed consolidated statements of comprehensive income.
[4] Includes “Occupancy, depreciation and amortization”; “Communications”; “Customer bad debt”; employee benefits and other personnel expenses reported in “Employee compensation and benefits”; and professional services, legal and regulatory matters, and other administrative expenses reported in “General and administrative” in the condensed consolidated statements of comprehensive income.
[5] Reported in “Occupancy, depreciation and amortization” in the condensed consolidated statements of comprehensive income.