Revenue - Reserves for Discounts and Allowances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 935.3	$ 1,276.0	$ 1,198.9
Current provisions relating to sales in current year	3,394.4	3,700.6	4,102.5
Adjustments relating to prior years	(8.6)	(103.4)	(53.7)
Payments/credits relating to sales in current year	(2,576.8)	(2,882.8)	(3,061.2)
Payments/credits relating to sales in prior years	(709.3)	(1,055.1)	(910.5)
Ending balance	1,035.0	935.3	1,276.0
Discounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	137.7	141.4	131.1
Current provisions relating to sales in current year	666.6	736.7	774.7
Adjustments relating to prior years	(2.8)	(4.0)	(1.0)
Payments/credits relating to sales in current year	(514.9)	(599.3)	(635.1)
Payments/credits relating to sales in prior years	(132.8)	(137.1)	(128.3)
Ending balance	153.8	137.7	141.4
Contractual Adjustments
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	759.6	1,093.0	1,027.3
Current provisions relating to sales in current year	2,715.5	2,948.7	3,308.8
Adjustments relating to prior years	1.4	(96.1)	(54.0)
Payments/credits relating to sales in current year	(2,060.7)	(2,283.1)	(2,426.1)
Payments/credits relating to sales in prior years	(558.1)	(902.9)	(763.0)
Ending balance	857.7	759.6	1,093.0
Returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	38.0	41.6	40.5
Current provisions relating to sales in current year	12.3	15.2	19.0
Adjustments relating to prior years	(7.2)	(3.3)	1.3
Payments/credits relating to sales in current year	(1.2)	(0.4)	0.0
Payments/credits relating to sales in prior years	(18.4)	(15.1)	(19.2)
Ending balance	$ 23.5	$ 38.0	$ 41.6