Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 7,222.2	$ 6,690.2
Accumulated depreciation	(5,027.9)	(4,641.4)
Property, plant and equipment, net	2,194.3	2,048.8
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	22.5	18.5
Buildings And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,420.9	2,273.1
Capitalized Software Costs [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	612.1	575.1
Instruments [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	3,894.0	3,589.6
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 272.7	$ 233.9