Revenue (Schedule of Revenue Recognized) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 8,312.1	$ 6,488.0	$ 15,272.1	$ 14,298.0
Net product revenue
Disaggregation of Revenue [Line Items]
Revenue	6,979.8	5,870.9	13,218.0	13,003.8
Collaboration and other revenue
Disaggregation of Revenue [Line Items]
Revenue	1,332.3	617.1	2,054.1	1,294.2
Collaboration and other revenue associated with prior period transfers of intellectual property
Disaggregation of Revenue [Line Items]
Revenue	$ 30.3	$ 34.4	$ 55.4	$ 87.6