Revenue Recognition and Accounts Receivable Variable Consideration (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue from Contract with Customer [Abstract]
Gross sales	$ 6,383.9	$ 6,519.0	$ 12,558.5	$ 12,792.0
Chargebacks	(1,282.6)	(1,374.2)	(2,526.8)	(2,724.9)
Rebates, promotional programs and other sales allowances	(1,040.5)	(961.0)	(2,088.8)	(1,953.2)
Returns	(70.1)	(68.3)	(130.4)	(118.7)
Medicaid and other governmental rebates	(204.8)	(206.0)	(373.1)	(366.6)
Sales Revenue, Gross to net adjustments	(2,598.0)	(2,609.5)	(5,119.1)	(5,163.4)
Net sales	$ 3,785.9	$ 3,909.5	$ 7,439.4	$ 7,628.6