Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-23-198542-index-headers.html | 2023-07-31 07:00:30 | |
| 0001193125-23-198542-index.html | 2023-07-31 07:00:30 | |
| 0001193125-23-198542.txt | 2023-07-31 07:00:30 | |
 0001193125-23-198542-xbrl.zip | 182367 | 2023-07-31 07:00:30 |
| biib-20230728.xsd | 2860 | 2023-07-31 07:00:30 |
| biib-20230728_lab.xml | 17981 | 2023-07-31 07:00:30 |
| biib-20230728_pre.xml | 11265 | 2023-07-31 07:00:30 |
| d454539d8k.htm | 58193 | 2023-07-31 07:00:30 |
| d454539d8k_htm.xml | 3410 | 2023-07-31 07:00:30 |
| d454539dex101.htm | 85221 | 2023-07-31 07:00:30 |
| d454539dex102.htm | 75519 | 2023-07-31 07:00:30 |
| d454539dex103.htm | 107181 | 2023-07-31 07:00:30 |
| d454539dex21.htm | 470945 | 2023-07-31 07:00:30 |
| d454539dex31.htm | 218778 | 2023-07-31 07:00:30 |
| FilingSummary.xml | 1872 | 2023-07-31 07:00:30 |
| Financial_Report.xlsx | 5717 | 2023-07-31 07:00:30 |
| MetaLinks.json | 18920 | 2023-07-31 07:00:30 |
| R1.htm | 39597 | 2023-07-31 07:00:30 |
| report.css | 2767 | 2023-07-31 07:00:30 |
| Show.js | 1085 | 2023-07-31 07:00:30 |