Restructuring Actions Restructuring Liability Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	$ 6.7	$ 8.9
Restructuring costs	12.7	5.2	$ 13.1
Cash payments	(11.7)	(8.2)
Foreign exchange translation and other	(0.2)	0.8
Restructuring accrual - ending balance	7.5	6.7	$ 8.9
Severance and other employee-related
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	5.6
Restructuring accrual - ending balance	7.2	5.6
Other
Restructuring Cost and Reserve [Line Items]
Restructuring accruals - beginning balance	1.1
Restructuring accrual - ending balance	$ 0.3	$ 1.1