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GOODWILL AND INTANGIBLE ASSETS - SCHEDULE OF MOVEMENT ON GOODWILL (Details)
$ in Millions
9 Months Ended
Sep. 30, 2023
USD ($)
Goodwill [Roll Forward]  
Goodwill, beginning balance $ 100
Goodwill, ending balance 164
Robinhood credit  
Goodwill [Roll Forward]  
Additions due to Robinhood Credit $ 64