Revenue Recognition and Accounts Receivable Variable Consideration (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue from Contract with Customer [Abstract]
Gross sales	$ 7,198.3	$ 7,567.0
Chargebacks	(1,584.2)	(1,318.0)
Rebates, promotional programs and other sales allowances	(1,205.9)	(1,568.5)
Returns	(82.6)	(113.0)
Medicaid and other governmental rebates	(147.4)	(167.4)
Sales Revenue, Gross to net adjustments	(3,020.1)	(3,166.9)
Net sales	$ 4,178.2	$ 4,400.1