GOODWILL AND OTHER INTANGIBLE ASSETS - Details of Intangible Assets Included in Other Long-Term Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other intangible assets:
Weighted Average Life	9 years 1 month 6 days
Accumulated Amortization	$ 883	$ 804
Total other intangible assets, cost	2,648	3,443
Total other intangible assets, net	1,765	2,639
Certificates of need
Other intangible assets:
Indefinite-lived intangible assets	1,132	1,771
Medicare licenses
Other intangible assets:
Indefinite-lived intangible assets	$ 286	522
Customer contracts/relationships
Other intangible assets:
Weighted Average Life	9 years 3 months 18 days
Cost	$ 929	883
Accumulated Amortization	673	620
Net	$ 256	263
Trade names and technology
Other intangible assets:
Weighted Average Life	6 years 8 months 12 days
Cost	$ 142	160
Accumulated Amortization	107	97
Net	$ 35	63
Provider contracts
Other intangible assets:
Weighted Average Life	11 years 7 months 6 days
Cost	$ 73	72
Accumulated Amortization	63	57
Net	$ 10	15
Noncompetes and other
Other intangible assets:
Weighted Average Life	8 years 4 months 24 days
Cost	$ 86	35
Accumulated Amortization	40	30
Net	$ 46	$ 5