REVENUE - Revenue Disaggregated by Revenue Sources (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Margin interest	$ 177	$ 132	$ 67
Interest on corporate cash and investments	103	1	2
Securities lending, net	89	136	98
Interest on segregated cash and cash equivalents and deposits	57	4	14
Cash Sweep, net	22	3	1
Interest expenses related to credit facilities	(24)	(20)	(5)
Net interest revenues	424	256	177
Total net revenues	1,358	1,815	958
Options
Disaggregation of Revenue [Line Items]
Revenues	488	690	440
Cryptocurrencies
Disaggregation of Revenue [Line Items]
Revenues	202	420	27
Equities
Disaggregation of Revenue [Line Items]
Revenues	117	287	251
Other
Disaggregation of Revenue [Line Items]
Revenues	7	5	2
Transaction-based revenues
Disaggregation of Revenue [Line Items]
Revenues	814	1,402	720
Other revenues
Disaggregation of Revenue [Line Items]
Revenues	$ 120	$ 157	$ 61