ACQUISITIONS, GOODWILL, AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions			3 Months Ended		6 Months Ended
	Apr. 01, 2024	Feb. 17, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Business Acquisition [Line Items]
Consideration transferred, net of cash acquired					$ 259	$ 147
Goodwill			$ 13,116		13,116		$ 12,936
Amortization of acquisition-related intangible assets			$ 81	$ 93	$ 160	$ 189
MIM Software
Business Acquisition [Line Items]
Percent of interest acquired	100.00%
Consideration transferred, net of cash acquired	$ 259
Goodwill	195
Deferred tax liabilities	19
Other net assets	7
MIM Software | Customer-related intangible assets
Business Acquisition [Line Items]
Intangible assets	52
MIM Software | Developed technology intangible assets
Business Acquisition [Line Items]
Intangible assets	48
MIM Software | Purchase price
Business Acquisition [Line Items]
Contingent consideration	13
MIM Software | Service requirements
Business Acquisition [Line Items]
Contingent consideration	$ 23
Caption Health
Business Acquisition [Line Items]
Percent of interest acquired		100.00%
Consideration transferred, net of cash acquired		$ 127
Contingent consideration		13
Goodwill		94
Intangible assets		60
Deferred tax liabilities		3
Consideration transferred, holdback payment		$ 10