Revenue - Reserves for Discounts and Allowances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 1,062.0	$ 1,035.0	$ 935.3
Current provisions relating to sales in current year	3,535.3	3,474.7	3,394.4
Adjustments relating to prior years	(16.5)	(19.6)	(8.6)
Payments/credits relating to sales in current year	(2,661.2)	(2,519.8)	(2,576.8)
Payments/credits relating to sales in prior years	(828.0)	(908.3)	(709.3)
Ending balance	1,091.6	1,062.0	1,035.0
Discounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	173.3	153.8	137.7
Current provisions relating to sales in current year	824.2	735.6	666.6
Adjustments relating to prior years	8.0	(0.4)	(2.8)
Payments/credits relating to sales in current year	(670.9)	(572.9)	(514.9)
Payments/credits relating to sales in prior years	(171.9)	(142.8)	(132.8)
Ending balance	162.7	173.3	153.8
Contractual Adjustments
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	857.1	857.7	759.6
Current provisions relating to sales in current year	2,687.5	2,720.1	2,715.5
Adjustments relating to prior years	(38.7)	(38.4)	1.4
Payments/credits relating to sales in current year	(1,989.7)	(1,944.8)	(2,060.7)
Payments/credits relating to sales in prior years	(635.4)	(737.5)	(558.1)
Ending balance	880.8	857.1	857.7
Returns
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	31.6	23.5	38.0
Current provisions relating to sales in current year	23.6	19.0	12.3
Adjustments relating to prior years	14.2	19.2	(7.2)
Payments/credits relating to sales in current year	(0.6)	(2.1)	(1.2)
Payments/credits relating to sales in prior years	(20.7)	(28.0)	(18.4)
Ending balance	$ 48.1	$ 31.6	$ 23.5