SEGMENT INFORMATION - SEGMENT ADJUSTED OPERATING (LOSS) INCOME (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reconciling items expense (income):
Segment adjusted operating (loss) income	$ (104.3)	$ 67.5	$ (229.1)	$ 114.8
Goodwill impairment	0.0	0.0	156.6	0.0
Interest expense	12.3	8.0	19.0	16.4
Interest income	(1.0)	(0.2)	(1.4)	(1.3)
Other expense (income), net	4.3	12.1	2.9	(1.7)
Amortization of intangible assets			93.8	95.5
(Loss) income before income taxes	(119.9)	47.6	(249.6)	101.4
Operating Segments
Reconciling items expense (income):
Segment adjusted operating (loss) income	(21.4)	217.8	151.3	395.3
Operating Segments | Technologies & Equipment
Reconciling items expense (income):
Segment adjusted operating (loss) income	(3.8)	96.0	107.3	167.8
Operating Segments | Consumables
Reconciling items expense (income):
Segment adjusted operating (loss) income	(17.6)	121.8	44.0	227.5
All Other
Reconciling items expense (income):
All Other	33.5	58.9	83.2	118.6
Segment Reconciling Items
Reconciling items expense (income):
Goodwill impairment	0.0	0.0	156.6	0.0
Restructuring and other costs	1.3	42.4	43.8	62.9
Interest expense	12.3	8.0	19.0	16.4
Interest income	(1.0)	(0.2)	(1.4)	(1.3)
Other expense (income), net	4.3	12.1	2.9	(1.7)
Amortization of intangible assets	46.6	47.3	93.8	95.5
Depreciation resulting from the fair value step-up of property, plant, and equipment from business combinations	$ 1.5	$ 1.7	$ 3.0	$ 3.5