Summary of Significant Accounting Policies - Property, Plant and Equipment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Land	$ 101.7	$ 97.9
Buildings and improvements	648.1	560.4
Machinery and equipment	2,459.6	2,125.8
Construction in progress	296.4	274.9
Total property, plant and equipment	3,505.8	3,059.0
Less – accumulated depreciation	(1,486.5)	(1,232.5)
Net property, plant and equipment	$ 2,019.3	$ 1,826.5
Buildings and improvements | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	10 years
Buildings and improvements | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	40 years
Machinery and equipment | Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	5 years
Machinery and equipment | Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment useful life	10 years