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v3.22.2

Reclassification out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other (income) expense | $ 428.6 | $ 96.4 | $ 165.3 | $ (410.5)
Income Tax Expense (Benefit) | 216.7 | (409.1) | 342.3 | (364.9)
Product revenues | 2,589.1 | 2,775.0 | 5,120.9 | 5,469.0
Net income attributable to Biogen Inc. | $ 1,058.0 | 448.5 | $ 1,361.8 | 858.7
Samsung Bioepis |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Equity, ownership interest | 49.90% |  | 49.90% |
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Net income attributable to Biogen Inc. | $ 17.6 | (27.6) | $ 34.5 | (49.0)
Unrealized gains (losses) on securities available for sale | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other (income) expense | (0.8) | (0.4) | (1.4) | (0.9)
Income Tax Expense (Benefit) | 0.2 | 0.1 | 0.3 | 0.2
Unrealized gains (losses) on cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other (income) expense | (0.1) | (0.1) | (0.2) | 0.1
Income Tax Expense (Benefit) | (4.2) | 3.0 | (6.2) | 5.3
Product revenues | 44.6 | (30.7) | 65.5 | (53.8)
Operating Expenses | (2.4) | 0.4 | (2.7) | 0.0
Gains (losses) on net investment hedge | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other (income) expense | 39.2 | 0.1 | 38.1 | 0.1
Currency Translation Adjustments | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |
Other (income) expense | $ (58.9) | $ 0.0 | $ (58.9) | $ 0.0

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