SUPPLEMENTAL FINANCIAL INFORMATION - Schedule of Other Income (Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net interest and investment income (expense)	$ 26	$ (9)	$ 34
Equity method income (loss)	11	13	27
Change in fair value of assumed obligations	(32)	0	0
Other items, net	81	58	62
Total other income (expense) – net	$ 86	$ 62	$ 123