Property and Equipment, net - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Land and improvements	$ 43.5	$ 41.6
Buildings	718.9	600.2
Machinery and equipment	2,330.5	2,091.5
Other property and equipment	116.3	104.3
Construction-in-progress	114.7	210.1
Property and equipment, gross	3,323.9	3,047.7
Accumulated depreciation and amortization	(2,325.5)	(2,158.1)
Property and equipment, net	$ 998.4	$ 889.6