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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

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