Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property Plant And Equipment [Abstract]
Land	$ 113.6	$ 112.1
Buildings	1,224.7	1,214.8
Machinery and equipment	6,160.3	6,142.8
Property, plant and equipment, gross	7,498.6	7,469.7
Accumulated depreciation	(6,050.5)	(5,954.2)
Total	$ 1,448.1	$ 1,515.5