REVENUES - Contract Assets and Contract Liabilities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Revenue From Contract With Customer [Line Items]
Contract assets	$ 200	$ 195
Contract liabilities	240	246
Revenue From Contract With Customer [Roll Forward]
Balance at beginning of period	246
New revenue deferrals	116
Revenue recognized upon satisfaction of performance obligations	(122)
Balance at end of period	240
Prepaid expenses and other current assets
Revenue From Contract With Customer [Line Items]
Contract assets	84	84
Other non-current assets
Revenue From Contract With Customer [Line Items]
Contract assets	116	111
Accrued expenses and other current liabilities
Revenue From Contract With Customer [Line Items]
Contract liabilities	166	162
Revenue From Contract With Customer [Roll Forward]
Balance at beginning of period	162
Balance at end of period	166
Other non-current liabilities
Revenue From Contract With Customer [Line Items]
Contract liabilities	74	84
Revenue From Contract With Customer [Roll Forward]
Balance at beginning of period	84
Balance at end of period	74
Contract manufacturing services
Revenue From Contract With Customer [Line Items]
Contract assets	47	50
Software sales
Revenue From Contract With Customer [Line Items]
Contract assets	42	45
Bundled equipment and consumable medical products contracts
Revenue From Contract With Customer [Line Items]
Contract assets	$ 111	$ 100