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Intangible Assets (Narrative) (Details) - Sauflon [Member] - In Process Research and Development [Member] - USD ($) $ in Millions | 12 Months Ended |
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Oct. 31, 2016 | Oct. 31, 2015
Indefinite-lived Intangible Assets [Line Items] |  |
Indefinite-lived Intangible Assets Acquired | $ 7.4 | $ 39.5
Research and Development in Process | 2.3 |
In Process Research and Development Acquired, Placed In Service [Line Items] | $ 29.8 |

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