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Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2017 | Oct. 31, 2016
Goodwill [Roll Forward] |  |
Balance, beginning | $ 2,164.7 | $ 2,197.1
Net additions during the nine months ended July 31, 2017 | 104.7 | 166.0
Translation | 64.2 | (198.4)
Balance, ending | 2,333.6 | 2,164.7
CooperVision |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 1,646.4 | 1,827.6
Net additions during the nine months ended July 31, 2017 | 10.3 | 9.1
Translation | 56.6 | (190.3)
Balance, ending | 1,713.3 | 1,646.4
CooperSurgical |  |
Goodwill [Roll Forward] |  |
Balance, beginning | 518.3 | 369.5
Net additions during the nine months ended July 31, 2017 | 94.4 | 156.9
Translation | 7.6 | (8.1)
Balance, ending | $ 620.3 | $ 518.3

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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