Collaboration, License, and Other Agreements - Schedule of Contract Balances, U.S. Government (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Accounts receivable, net	$ 5,667.3	$ 5,328.7
Other Transaction Agreement
Disaggregation of Revenue [Line Items]
Accounts receivable, net	$ 18.5