Other Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Income and Expenses [Abstract]
Severance and post-employment benefits	$ 3.1	$ 0.0	$ 8.9
Asset-related charges	2.2	0.0	17.3
Other charges	3.8	0.0	0.2
Total restructuring and related charges	9.1	0.0	26.4
Venezuela currency devaluation	1.1	0.0	0.0
Venezuela deconsolidation	0.0	11.1	0.0
Argentina currency devaluation	0.0	0.0	2.7
Development and licensing income	(0.9)	(10.6)	(1.5)
Contingent consideration	(2.6)	(2.4)	2.3
Other items	(4.8)	3.9	(0.1)
Total other expense	$ 1.9	$ 2.0	$ 29.8