Restructuring Actions Restructuring Liability Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	$ 7.5	$ 6.7
Restructuring costs	44.1	13.4
Restructuring Reserve, Accrual Adjustment	(1.1)	(0.6)
Cash payments	(33.0)	(11.7)
Foreign exchange translation and other	1.6	(0.3)
Restructuring accrual - ending balance	19.1	7.5
Severance and other employee-related
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	7.2
Restructuring accrual - ending balance	18.6	7.2
Other
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	0.3
Restructuring accrual - ending balance	$ 0.5	$ 0.3