RELATED PARTY TRANSACTIONS - Schedule of Amounts Included in Condensed Consolidated Statements of Operations Related to Fee for Service Arrangement (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Equity in earnings from unconsolidated affiliates	$ 3	$ 2	$ 8	$ 5
Commissions and other fees	1,235	1,007	2,391	1,941
Related Party
Related Party Transaction [Line Items]
Equity in earnings from unconsolidated affiliates	3	2	8	5
Commissions and other fees	$ 44	$ 56	$ 80	$ 108

Amount of income (loss) for proportionate share of equity method investee's income (loss).

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details