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Acquisitions and Divestitures - Acquisitions (Detail) $ in Millions	12 Months Ended
	Oct. 31, 2015 USD ($) Acquisition	Oct. 31, 2014 USD ($) Acquisition Company	Oct. 31, 2013 USD ($) Acquisition
Business Acquisition [Line Items]
Number of acquisitions	0	2	0
Purchase Price, net of Cash	$ 1.6	$ 53.5
Goodwill	$ 807.1	$ 880.2	$ 998.4
Total 2014 Acquisitions [Member]
Business Acquisition [Line Items]
Number of acquisitions | Acquisition		2
Purchase Price, net of Cash		$ 53.5
Tangible Assets, net		2.5
Intangible Assets		22.1
Goodwill		$ 25.9

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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-Name Accounting Standards Codification
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The amount of property, plant, and equipment recognized as of the acquisition date.

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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.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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