Restructuring Costs and Other - Reserve (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			$ 17.4
Pre-tax Restructuring Costs	$ 3.3	$ 5.2	12.5	$ 15.6
Utilization and Foreign Exchange			(17.0)
Ending Accrued Restructuring Balance 9/30/2020	12.8		12.8
2020 Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			0.0
Pre-tax Restructuring Costs			8.2
Utilization and Foreign Exchange			(5.5)
Ending Accrued Restructuring Balance 9/30/2020	2.6		2.6
2020 Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			0.0
Pre-tax Restructuring Costs			6.2
Utilization and Foreign Exchange			(3.6)
Ending Accrued Restructuring Balance 9/30/2020	2.6		2.6
2020 Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			0.0
Pre-tax Restructuring Costs			0.2
Utilization and Foreign Exchange			(0.2)
Ending Accrued Restructuring Balance 9/30/2020	0.0		0.0
2020 Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			0.0
Pre-tax Restructuring Costs			1.8
Utilization and Foreign Exchange			(1.8)
Ending Accrued Restructuring Balance 9/30/2020	0.0		0.0
2019 and Prior Restructuring Actions
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			17.4
Pre-tax Restructuring Costs			4.3
Utilization and Foreign Exchange			(11.5)
Ending Accrued Restructuring Balance 9/30/2020	10.2		10.2
2019 and Prior Restructuring Actions | Severance
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			11.3
Pre-tax Restructuring Costs			(1.3)
Utilization and Foreign Exchange			(6.5)
Ending Accrued Restructuring Balance 9/30/2020	3.5		3.5
2019 and Prior Restructuring Actions | Asset write-downs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			0.0
Pre-tax Restructuring Costs			0.3
Utilization and Foreign Exchange			(0.3)
Ending Accrued Restructuring Balance 9/30/2020	0.0		0.0
2019 and Prior Restructuring Actions | Facility closure and other costs
Restructuring Reserve [Roll Forward]
Beginning Accrued Restructuring Balance 1/1/20			6.1
Pre-tax Restructuring Costs			5.3
Utilization and Foreign Exchange			(4.7)
Ending Accrued Restructuring Balance 9/30/2020	$ 6.7		$ 6.7