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v3.19.3.a.u2

Other Consolidated Financial Statement Detail (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |  |
Other Liabilities, Noncurrent | $ 1,389.4 |  | $ 1,348.9 | $ 1,389.4
Increase to goodwill |  |  | 117.5 | 1,080.1
Accrued construction in progress | 125.2 |  | 78.0 | 125.2
Accrued Income Taxes, Noncurrent | 791.4 |  | 803.3 | 791.4
Solothurn |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Accrued construction in progress | 100.0 |  | $ 50.0 | 100.0
TECFIDERA | Fumapharm AG |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Increase to goodwill | 300.0 |  |  | 1,200.0
TECFIDERA | Fumapharm AG | Twenty billion |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Increase to goodwill | 300.0 |  |  |
Cumulative sales level | 20,000.0 |  |  | 20,000.0
TECFIDERA | Fumapharm AG | Each additional one billion up to twenty billion |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cumulative sales level | $ 20,000.0 |  |  | $ 20,000.0
TECFIDERA | Fumapharm AG | Fifteen billion |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cumulative sales level |  | $ 15,000.0 |  |
TECFIDERA | Fumapharm AG | Sixteen billion |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Increase to goodwill |  | 600.0 |  |
Cumulative sales level |  | $ 16,000.0 |  |

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