Revenue Recognition and Accounts Receivable Variable Consideration (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Gross sales	$ 25,693.1	$ 27,662.1	$ 30,553.4
Gross to net adjustments:
Chargebacks	(5,457.9)	(6,192.2)	(5,530.1)
Rebates, promotional programs and other sales allowances	(3,857.6)	(4,346.2)	(6,135.6)
Returns	(223.2)	(296.7)	(384.6)
Governmental rebate programs	(766.0)	(608.9)	(689.5)
Total gross to net adjustments	10,304.7	11,444.0	12,739.8
Net sales	15,388.4	16,218.1	17,813.6
Net sales
Gross to net adjustments:
Net sales	$ 15,388.4	$ 16,218.1	$ 17,813.6