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Acquisitions, Divestitures, Assets and Liabilities Held for Sale, Licensing Arrangements, Research and Development and Collaborative Arrangements, Equity-Method Investments and Privately Held Investment - Equity Method Investments (Details) - USD ($) $ in Millions |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Nov. 10, 2017 | Dec. 31, 2017 | Jul. 02, 2017 | Dec. 31, 2016 | Jul. 03, 2016 | Apr. 03, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Oct. 01, 2017 | Jun. 30, 2017 | Sep. 30, 2012
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  | $ 270.0 |  |  |  | $ 270.0 |  |  |
Equity method investment, other than temporary impairment |  |  |  | $ 241.0 | $ 130.0 | $ 81.0 |  | $ 452.0 |  |  |
Hisun Pfizer Pharmaceuticals Co. Ltd [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investment, registered capital |  |  |  |  |  |  |  |  |  |  | $ 250.0
Equity method investments |  |  |  |  |  |  |  |  |  |  | $ 122.5
Equity method investment, ownership percentage | 49.00% | 49.00% |  | 49.00% |  |  | 49.00% | 49.00% |  |  |
Proceeds from sale of equity method investments | $ 286.0 |  |  |  |  |  |  |  |  |  |
Equity method investment, carrying value of share sold | 270.0 |  |  |  |  |  |  |  |  |  |
Proceeds from sale of equity method investment used to cover taxes incurred on transaction | $ 16.0 |  |  |  |  |  |  |  |  |  |
Loss on disposal of equity method investment |  | $ 81.0 |  |  |  |  |  |  |  |  |
Equity method investment, other than temporary impairment |  |  |  |  |  |  |  | $ 452.0 |  |  |
Laboratorio Teuto Brasilero [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  |  | 40.00% |  |  |  | 40.00% | 40.00% | 40.00% |
Loss on disposal of equity method investment |  |  | $ 30.0 |  |  |  | $ 30.0 |  |  |  |
Equity method investment, other than temporary impairment |  |  |  |  |  |  |  | $ 50.0 |  |  |
Laboratorio Teuto Brasilero [Member] | Other Nonoperating Income (Expense) [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Equity method investment, other than temporary impairment |  |  |  |  |  |  |  | $ 50.0 |  |  |
Laboratorio Teuto Brasilero [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  |  |  |  |  |  |  |  | 60.00% |  |
Laboratorio Teuto Brasilero [Member] | Laboratorio Teuto Brasilero [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  |  |  |  |  |  |  |  |  | 60.00% |

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