Property and Equipment, net - Schedule of Property and Equipment, net (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Abstract]
Land and improvements	$ 41.4	$ 43.5
Buildings	730.9	718.9
Machinery and equipment	2,333.7	2,330.5
Other property and equipment	134.2	116.3
Construction-in-progress	132.7	114.7
Property and equipment, gross	3,372.9	3,323.9
Accumulated depreciation and amortization	(2,350.9)	(2,325.5)
Property and equipment, net	$ 1,022.0	$ 998.4