ALLOWANCE FOR CREDIT LOSSES - Schedule of Allowance for Credit Losses of Brokerage Related (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Provision for credit losses			$ 57	$ 29
Brokerage Related Receivables
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 15	$ 20	15	18
Provision for credit losses	6	3	16	18
Write-offs	(6)	(7)	(16)	(20)
Ending balance	$ 15	$ 16	$ 15	$ 16