XML 96 R60.htm IDEA: XBRL DOCUMENT v3.24.1.u1
GOODWILL, INTANGIBLE ASSETS, NET, AND DIGITAL ASSETS HELD - Goodwill by segment (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Goodwill      
Balance at beginning of the period $ 3,140.6    
Changes in foreign currency exchange rates (6.8)    
Balance at end of the period 3,133.8    
Deferred tax benefit 1.7 $ 10.6  
Carrying value of investments 361.8   $ 345.3
Options      
Goodwill      
Balance at beginning of the period 305.8    
Balance at end of the period 305.8    
North American Equities      
Goodwill      
Balance at beginning of the period 2,004.4    
Changes in foreign currency exchange rates (3.6)    
Balance at end of the period 2,000.8    
Europe and Asia Pacific      
Goodwill      
Balance at beginning of the period 563.2    
Changes in foreign currency exchange rates (3.2)    
Balance at end of the period 560.0    
Global FX      
Goodwill      
Balance at beginning of the period 267.2    
Balance at end of the period 267.2    
Futures      
Goodwill      
Balance at end of the period $ 0.0