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Restructuring Initiatives - Transformation Plan (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Reserve [Roll Forward]
Charges	$ 22.6	$ 17.5	$ 45.7	$ 53.5	$ 126.1	$ 19.8	$ 23.7	$ 10.9	$ 139.3	$ 180.5	$ 60.2
Transformation Plan
Restructuring Reserve [Roll Forward]
Beginning Balance				38.0				49.2	38.0	49.2
Charges									(0.2)	37.1
Adjustments									(0.2)	(16.0)
Cash payments									(27.4)	(27.6)
Non-cash write-offs									(0.3)	(2.1)
Foreign exchange									0.0	(2.6)
Ending Balance	9.9				38.0				9.9	38.0	49.2
Employee-Related Costs \| Transformation Plan
Restructuring Reserve [Roll Forward]
Beginning Balance				34.4				41.2	34.4	41.2
Charges									(0.7)	29.5
Adjustments									(0.2)	(12.6)
Cash payments									(25.0)	(21.3)
Non-cash write-offs									0.0	0.0
Foreign exchange									(0.1)	(2.4)
Ending Balance	8.4				34.4				8.4	34.4	41.2
Inventory write-off \| Transformation Plan
Restructuring Reserve [Roll Forward]
Beginning Balance				0.0				0.0	0.0	0.0
Charges									0.3	1.4
Adjustments									0.0	0.0
Cash payments									0.0	0.0
Non-cash write-offs									(0.3)	(1.4)
Foreign exchange									0.0	0.0
Ending Balance	0.0				0.0				0.0	0.0	0.0
Foreign Currency Translation Adjustment Write-offs \| Transformation Plan
Restructuring Reserve [Roll Forward]
Beginning Balance				0.0				0.0	0.0	0.0
Charges									0.0	0.7
Adjustments									0.0	0.0
Cash payments									0.0	0.0
Non-cash write-offs									0.0	(0.7)
Foreign exchange									0.0	0.0
Ending Balance	0.0				0.0				0.0	0.0	0.0
Contract termination and other net costs \| Transformation Plan
Restructuring Reserve [Roll Forward]
Beginning Balance				$ 3.6				$ 8.0	3.6	8.0
Charges									0.2	5.5
Adjustments									0.0	(3.4)
Cash payments									(2.4)	(6.3)
Non-cash write-offs									0.0	0.0
Foreign exchange									0.1	(0.2)
Ending Balance	$ 1.5				$ 3.6				$ 1.5	$ 3.6	$ 8.0