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Number of divestitures.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228

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The number of businesses acquired by the entity during the period.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585

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The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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Acquisitions and Divestitures - Additional Information (Detail) $ in Millions	3 Months Ended				9 Months Ended
	Jul. 31, 2017 USD ($) Divestiture	Apr. 30, 2017 business deconsolidation	Jan. 31, 2017 deconsolidation	Jul. 31, 2016 USD ($)	Jul. 31, 2017 USD ($) Divestiture subsidiary business deconsolidation	Jul. 31, 2016 USD ($) Divestiture business
Business Acquisition [Line Items]
Number of divestitures (business) \| Divestiture					1	4
Number of acquisitions (business) \| business					0	0
Deconsolidation, number of businesses, nonstrategic \| deconsolidation					2
Number of subsidiaries liquidated \| subsidiary					1
Gain on disposals of businesses, net	$ (0.8)			$ (1.3)	$ (2.2)	$ (4.1)
Proceeds from divestitures					4.5	23.8
Proceeds from Divestiture of Businesses and Interests in Affiliates					$ 3.7	$ 25.2
Minimum
Business Acquisition [Line Items]
Notes receivable term					2 months
Maximum
Business Acquisition [Line Items]
Notes receivable term					17 months
Notes Receivable
Business Acquisition [Line Items]
Consideration for divestiture	$ 3.8				$ 3.8
Paper Packaging & Services
Business Acquisition [Line Items]
Number of divestitures (business) \| Divestiture	1
Deconsolidation, number of businesses, nonstrategic \| deconsolidation		1
Number of subsidiaries liquidated \| business		1
Flexible Products & Services
Business Acquisition [Line Items]
Deconsolidation, number of businesses, nonstrategic \| deconsolidation			1
2015 Divestiture
Business Acquisition [Line Items]
Proceeds from divestitures					$ 0.8