ACQUISITIONS, GOODWILL, AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Feb. 17, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Consideration transferred, upfront payment				$ 147	$ 0
Contingent consideration		$ 49		49		$ 42
Goodwill		12,914		12,914		$ 12,813
Amortization of intangible assets		$ 89	$ 103	$ 278	$ 307
Caption Health
Business Acquisition [Line Items]
Percent of interest acquired	100.00%
Consideration transferred, upfront payment	$ 127
Consideration transferred, holdback payment	10
Contingent consideration	13
Goodwill	94
Intangible assets	60
Deferred tax liabilities	$ 3