SEGMENT INFORMATION - SEGMENT ADJUSTED OPERATING INCOME (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	$ (124.8)	$ 47.3
Goodwill impairment	156.6	0.0
Interest expense	6.7	8.4
Interest income	(0.4)	(1.1)
Other expense (income), net	(1.4)	(13.8)
Amortization of intangible assets	47.2	48.2
(Loss) income before income taxes	(129.7)	53.8
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	172.7	177.5
Operating Segments \| Technologies & Equipment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	111.1	71.8
Operating Segments \| Consumables
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment adjusted operating income	61.6	105.7
All Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
All Other	49.7	59.7
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Goodwill impairment	156.6	0.0
Restructuring and other costs	42.5	20.5
Interest expense	6.7	8.4
Interest income	(0.4)	(1.1)
Other expense (income), net	(1.4)	(13.8)
Amortization of intangible assets	47.2	48.2
Depreciation resulting from the fair value step-up of property, plant, and equipment from business combinations	$ 1.5	$ 1.8

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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