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| 0000875045-24-000009-index.html | 2024-02-13 17:40:44 | |
| 0000875045-24-000009.txt | 2024-02-13 17:40:44 | |
 0000875045-24-000009-xbrl.zip | 1697417 | 2024-02-13 17:40:44 |
| biib-20231231.htm | 4278977 | 2024-02-13 17:40:44 |
| biib-20231231.xsd | 157237 | 2024-02-13 17:40:44 |
| biib-20231231xex21.htm | 51774 | 2024-02-13 17:40:44 |
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| biib-20231231_lab.xml | 1664761 | 2024-02-13 17:40:44 |
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| exhibit1032-salexanderamen.htm | 7142 | 2024-02-13 17:40:44 |
| exhibit1033-rachidemployme.htm | 175605 | 2024-02-13 17:40:44 |
| exhibit1035-jvatermination.htm | 58418 | 2024-02-13 17:40:44 |
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 image_0.jpg | 6901 | 2024-02-13 17:40:44 |
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