Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000875045-21-000005-index-headers.html | 2021-02-03 07:04:08 | |
| 0000875045-21-000005-index.html | 2021-02-03 07:04:08 | |
| 0000875045-21-000005.txt | 2021-02-03 07:04:08 | |
 0000875045-21-000005-xbrl.zip | 38005 | 2021-02-03 07:04:08 |
| biib-20210203.htm | 31399 | 2021-02-03 07:04:08 |
| biib-20210203.xsd | 2443 | 2021-02-03 07:04:08 |
| biib-20210203_cal.xml | 726 | 2021-02-03 07:04:08 |
| biib-20210203_def.xml | 1663 | 2021-02-03 07:04:08 |
| biib-20210203_htm.xml | 11365 | 2021-02-03 07:04:08 |
| biib-20210203_lab.xml | 24275 | 2021-02-03 07:04:08 |
| biib-20210203_pre.xml | 12662 | 2021-02-03 07:04:08 |
 biogenlogostandarda291.jpg | 756402 | 2021-02-03 07:04:08 |
| exhibit991-q42020pressrele.htm | 411192 | 2021-02-03 07:04:08 |
| FilingSummary.xml | 1747 | 2021-02-03 07:04:08 |
| Financial_Report.xlsx | 5471 | 2021-02-03 07:04:08 |
| MetaLinks.json | 17407 | 2021-02-03 07:04:08 |
| R1.htm | 38646 | 2021-02-03 07:04:08 |
| report.css | 2767 | 2021-02-03 07:04:08 |
| Show.js | 1085 | 2021-02-03 07:04:08 |