Restructuring Actions Restructuring Liability Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance	$ 8.9	$ 14.6
Restructuring costs	5.2	13.1	$ 26.3
Cash payments	(8.2)	(17.8)
Asset write-offs	0.0	1.9	0.7
Foreign exchange translation and other	0.8	0.9
Restructuring Reserve - Ending Balance	6.7	8.9	$ 14.6
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance	8.0
Restructuring Reserve - Ending Balance	5.6	8.0
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve - Beginning Balance	0.9
Restructuring Reserve - Ending Balance	$ 1.1	$ 0.9