ACQUISITIONS - Preliminary Purchase Price Allocations (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Final purchase price allocations
Goodwill	$ 10,415		$ 10,123
Cash paid, net of cash acquired	(110)	$ (224)
Gains on consolidations	12	0
Series of Individual Business Acquisitions
Final purchase price allocations
Current assets	24	32
Property and equipment	12	45
Other intangible assets	8	2
Goodwill	342	707
Other long-term assets	16	84
Previously held investments in unconsolidated affiliates	(59)	(134)
Current liabilities	(17)	(30)
Long-term liabilities	(19)	(100)
Redeemable noncontrolling interests in equity of consolidated subsidiaries	(126)	(134)
Noncontrolling interests	(59)	(248)
Cash paid, net of cash acquired	$ (110)	$ (224)