Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 6,896.1	$ 6,766.2
Accumulated depreciation	(4,788.9)	(4,705.8)
Property, plant and equipment, net	2,107.2	2,060.4
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	19.0	18.9
Buildings And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,308.4	2,245.9
Capitalized Software Costs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	578.3	552.2
Instruments [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	3,748.2	3,748.6
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 242.2	$ 200.6