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Acquisitions and Divestitures - Acquisitions (Detail) $ in Millions | 12 Months Ended
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Oct. 31, 2016 USD ($) business Acquisition | Oct. 31, 2015 USD ($) Acquisition | Oct. 31, 2014 USD ($) Company Acquisition
Business Acquisition [Line Items] |  |  |
Number of acquisitions (acquisition) | 0 | 0 | 2
Purchase Price, net of Cash | $ 0.4 | $ 1.6 | $ 53.5
Goodwill | $ 786.4 | $ 807.1 | $ 880.2
Series of Individually Immaterial Business Acquisitions |  |  |
Business Acquisition [Line Items] |  |  |
Number of acquisitions (acquisition) | Acquisition | 0 | 0 | 2
Purchase Price, net of Cash | $ 0.0 | $ 0.0 | $ 53.5
Tangible Assets, net | 0.0 | 0.0 | 2.5
Intangible Assets | 0.0 | 0.0 | 22.1
Goodwill | $ 0.0 | $ 0.0 | $ 25.9

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 + Details
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- Definition The amount of property, plant, and equipment recognized as of the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464 + Details
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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 -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 + Details
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