Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Land	$ 108.2	$ 108.4
Buildings and improvements	757.3	653.0
Machinery and equipment	2,777.7	2,454.6
Property, plant and equipment, gross	3,643.2	3,216.0
Less: Accumulated depreciation	(1,935.7)	(1,672.6)
Property, plant and equipment, net	$ 1,707.5	$ 1,543.4