Property, Plant and Equipment (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) ft²	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ 2,468.2		$ 2,402.5
Depreciation	69.3	$ 62.1
Property, Plant and Equipment, Net	$ 3,275.3		3,309.7
Biologics Manufacturing
Property, Plant and Equipment [Line Items]
Number of square feet | ft²	393,000
Warehouse, Utilities and Support Space
Property, Plant and Equipment [Line Items]
Number of square feet | ft²	290,000
Administrative Space
Property, Plant and Equipment [Line Items]
Number of square feet | ft²	51,000
Solothurn, Switzerland
Property, Plant and Equipment [Line Items]
Construction in progress			$ 728.8
Property, Plant and Equipment, Additions	$ 717.3