SEGMENT AND GEOGRAPHIC INFORMATION - SEGMENT OPERATING INCOME (LOSS) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	$ (12,000,000)	$ 361,000,000	$ (958,000,000)
Goodwill impairment	157,000,000	0	1,086,000,000
Interest expense	48,000,000	30,000,000	37,000,000
Interest income	(1,000,000)	(2,000,000)	(2,000,000)
Other expense (income), net	1,000,000	(12,000,000)	(35,000,000)
Amortization of intangible assets	192,000,000	190,000,000	198,000,000
(Loss) income before income taxes	(60,000,000)	345,000,000	(958,000,000)
Previously Reported
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
All other		(38,000,000)	(36,000,000)
Technologies & Equipment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill impairment	157,000,000		1,086,000,000
Consumables
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill impairment	0
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	701,000,000	907,000,000	774,000,000
Operating Segments | Technologies & Equipment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	387,000,000	467,000,000	312,000,000
Operating Segments | Consumables
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	314,000,000	440,000,000	462,000,000
Corporate, Reconciling Items, And Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
All other	281,000,000	269,000,000	220,000,000
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill impairment	157,000,000	0	1,086,000,000
Restructuring and other costs	77,000,000	81,000,000	221,000,000
Interest expense	48,000,000	30,000,000	37,000,000
Interest income	(1,000,000)	(2,000,000)	(2,000,000)
Other expense (income), net	1,000,000	(12,000,000)	(35,000,000)
Amortization of intangible assets	192,000,000	189,000,000	198,000,000
Depreciation resulting from the fair value step-up of property, plant, and equipment from business combinations	$ 6,000,000	$ 7,000,000	$ 7,000,000