Property, Plant, and Equipment - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 6,125.2	$ 5,432.2
Accumulated depreciation and amortization	(1,978.8)	(1,669.2)
Property, plant, and equipment, net	4,146.4	3,763.0
Building and improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	2,423.1	2,270.0
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	133.9	114.3
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	1,384.5	1,315.3
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	389.7	337.4
Furniture, office equipment, and other
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	165.9	150.2
Land
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	283.1	264.5
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, gross	$ 1,345.0	$ 980.5