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Share-Based Payments (Tables) | 3 Months Ended
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Mar. 31, 2023
Share-Based Payment Arrangement [Abstract] |
Share-based compensation expense included in condensed consolidated statements of income | The following table summarizes share-based compensation expense included in our condensed consolidated statements of income:
|  | For the Three Months Ended March 31, |  |
(In millions) |  | 2023 |  | 2022 |  |  |  |
Research and development |  | $ | 31.3 |  |  | $ | 25.7 |  |  |  |  |
Selling, general and administrative |  | 50.1 |  |  | 46.1 |  |  |  |  |
Subtotal |  | 81.4 |  |  | 71.8 |  |  |  |  |
Capitalized share-based compensation costs |  | (3.3) |  |  | (2.8) |  |  |  |  |
Share-based compensation expense included in total cost and expense |  | 78.1 |  |  | 69.0 |  |  |  |  |
Income tax effect |  | (14.7) |  |  | (12.8) |  |  |  |  |
Share-based compensation expense included in net income attributable to Biogen Inc. |  | $ | 63.4 |  |  | $ | 56.2 |  |  |  |  |
Summary of share-based compensation expense associated with each of our share-based compensating programs | The following table summarizes share-based compensation expense associated with each of our share-based compensation programs:
|  | For the Three Months Ended March 31, |  |
(In millions) |  | 2023 |  | 2022 |  |  |  |
Market stock units |  | $ | 2.2 |  |  | $ | 5.9 |  |  |  |  |
Time-vested restricted stock units |  | 61.7 |  |  | 51.3 |  |  |  |  |
Performance stock units settled in stock |  | 9.5 |  |  | 8.3 |  |  |  |  |
Performance stock units settled in cash |  | 2.5 |  |  | 1.4 |  |  |  |  |
Employee stock purchase plan |  | 4.7 |  |  | 4.9 |  |  |  |  |
Stock options(1) |  | 0.8 |  |  | — |  |  |  |  |
Subtotal |  | 81.4 |  |  | 71.8 |  |  |  |  |
Capitalized share-based compensation costs |  | (3.3) |  |  | (2.8) |  |  |  |  |
Share-based compensation expense included in total cost and expense |  | $ | 78.1 |  |  | $ | 69.0 |  |  |  |  |
(1) During the fourth quarter of 2022 we granted stock options. For additional information, please read Note 16, Share-Based Payments, to our consolidated financial statements included in our 2022 Form 10-K.

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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