Revenue Recognition and Accounts Receivable Variable Consideration Rollforward (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	$ 3,814.5
End of period	3,700.4
Variable Consideration
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	2,687.5
Current Provision Related to Sales Made in the Current Period	10,304.7
Acquisitions, Divestitures, and Other	(5.0)
Checks/ Credits Issued to Third Parties	(10,528.0)
Effects of Foreign Exchange	20.7
End of period	2,479.9
Variable Consideration | Chargebacks
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	523.4
Current Provision Related to Sales Made in the Current Period	5,457.9
Acquisitions, Divestitures, and Other	(8.1)
Checks/ Credits Issued to Third Parties	(5,443.6)
Effects of Foreign Exchange	0.7
End of period	530.3
Variable Consideration | Rebates, promotional programs and other sales allowances
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	1,284.2
Current Provision Related to Sales Made in the Current Period	3,857.6
Acquisitions, Divestitures, and Other	20.6
Checks/ Credits Issued to Third Parties	(4,071.3)
Effects of Foreign Exchange	11.8
End of period	1,102.9
Variable Consideration | Returns
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	513.4
Current Provision Related to Sales Made in the Current Period	223.2
Acquisitions, Divestitures, and Other	(26.2)
Checks/ Credits Issued to Third Parties	(286.8)
Effects of Foreign Exchange	1.8
End of period	425.4
Variable Consideration | Governmental rebate programs
Accounts Receivable, Variable Consideration [Roll Forward]
Beginning of period	366.5
Current Provision Related to Sales Made in the Current Period	766.0
Acquisitions, Divestitures, and Other	8.7
Checks/ Credits Issued to Third Parties	(726.3)
Effects of Foreign Exchange	6.4
End of period	$ 421.3