Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 6,267.6	$ 6,137.7
Accumulated depreciation	(4,441.7)	(4,301.1)
Property, plant and equipment, net	1,825.9	1,836.6
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	20.0	20.1
Buildings And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,107.7	2,086.0
Capitalized Software Costs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	471.5	454.9
Instruments [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	3,548.7	3,460.4
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 119.7	$ 116.3