Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 4,521.2	$ 4,427.9
Accumulated depreciation	(2,482.2)	(2,365.3)
Property, plant and equipment, net	2,039.0	2,062.6
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	39.4	39.6
Buildings And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	1,782.2	1,789.3
Capitalized Software Costs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	368.3	330.1
Instruments [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,215.8	2,160.5
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 115.5	$ 108.4