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Revenues - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) wholesaler | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of wholesalers | wholesaler |  |  |  |  |  |  |  |  | 2 |  |
Percentage of total revenues |  |  |  |  |  |  |  |  | 14.70% | 15.90% | 14.70%
Revenues | $ 2,852.6 | $ 3,376.1 | $ 3,681.6 | $ 3,534.3 | $ 3,671.3 | $ 3,600.1 | $ 3,616.7 | $ 3,489.8 | $ 13,444.6 | $ 14,377.9 | $ 13,452.9
Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | 132.0 | $ 125.7 | 407.6 | $ 109.3 | $ 145.7 | $ 109.6 | $ 160.0 | $ 292.4 | 774.6 | 707.7 | 585.9
Other corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 719.1 | 584.5 | 459.4
Remaining performance obligation, amount | $ 153.8 |  | $ 500.0 |  |  |  |  |  | 153.8 |  |
Bioverativ | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 48.6 | $ 383.2 | $ 206.7
Contract Manufacturing Customer | Other corporate |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 346.2 |  |
Distributor One |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of revenue from major distributors |  |  |  |  |  |  |  |  | 30.50% | 30.00% | 32.00%
Percentage receivables of wholesale distributor accounted in consolidated receivables | 21.10% |  |  |  | 24.10% |  |  |  | 21.10% | 24.10% |
Distributor Two |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of revenue from major distributors |  |  |  |  |  |  |  |  | 15.30% | 17.20% | 18.40%
Percentage receivables of wholesale distributor accounted in consolidated receivables | 8.50% |  |  |  | 13.90% |  |  |  | 8.50% | 13.90% |

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