Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Accrued payroll and related costs	$ 618.2	$ 497.3
Accrued clinical expenses	292.2	295.0
Accrued sales-related costs	780.8	633.6
Other accrued expenses and liabilities	666.7	648.3
Accrued expenses and other current liabilities	$ 2,357.9	$ 2,074.2