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Fair Value Measurements (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2022
--- | --- | --- | ---
Samsung Bioepis |  |  |
Liabilities: |  |  |
Equity, ownership interest | 49.90% |  | 49.90%
Fair Value, Measurements Recurring |  |  |
Assets: |  |  |
Cash equivalents | $ 484.8 | $ 610.7 |
Marketable equity securities | 329.5 | 416.8 |
Derivative contracts | 9.9 | 11.9 |
Plan assets for deferred compensation | 39.0 | 37.5 |
Total | 1,299.3 | 1,506.9 |
Liabilities: |  |  |
Derivative contracts | 27.3 | 31.6 |
Total | 27.3 | 31.6 |
Fair Value, Measurements Recurring | Samsung Bioepis |  |  |
Assets: |  |  |
Other current assets, receivable | 436.1 | 430.0 |
Quoted Prices in Active Markets (Level 1) | Fair Value, Measurements Recurring |  |  |
Assets: |  |  |
Cash equivalents | 0.0 | 0.0 |
Marketable equity securities | 329.5 | 416.8 |
Derivative contracts | 0.0 | 0.0 |
Plan assets for deferred compensation | 0.0 | 0.0 |
Total | 329.5 | 416.8 |
Liabilities: |  |  |
Derivative contracts | 0.0 | 0.0 |
Total | 0.0 | 0.0 |
Quoted Prices in Active Markets (Level 1) | Fair Value, Measurements Recurring | Samsung Bioepis |  |  |
Assets: |  |  |
Other current assets, receivable | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements Recurring |  |  |
Assets: |  |  |
Cash equivalents | 484.8 | 610.7 |
Marketable equity securities | 0.0 | 0.0 |
Derivative contracts | 9.9 | 11.9 |
Plan assets for deferred compensation | 39.0 | 37.5 |
Total | 533.7 | 660.1 |
Liabilities: |  |  |
Derivative contracts | 27.3 | 31.6 |
Total | 27.3 | 31.6 |
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements Recurring | Samsung Bioepis |  |  |
Assets: |  |  |
Other current assets, receivable | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements Recurring |  |  |
Assets: |  |  |
Cash equivalents | 0.0 | 0.0 |
Marketable equity securities | 0.0 | 0.0 |
Derivative contracts | 0.0 | 0.0 |
Plan assets for deferred compensation | 0.0 | 0.0 |
Total | 436.1 | 430.0 |
Liabilities: |  |  |
Derivative contracts | 0.0 | 0.0 |
Total | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements Recurring | Samsung Bioepis |  |  |
Assets: |  |  |
Other current assets, receivable | $ 436.1 | $ 430.0 |

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