GOODWILL AND OTHER INTANGIBLE ASSETS-NET - Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
Jul. 31, 2016	Jul. 31, 2015
Changes in Amounts of Goodwill
Goodwill - net, beginning balance	$ 726.0	$ 791.0
Acquisitions	94.0
Translation adjustments	4.0	(75.0)
Goodwill - net, ending balance	823.6	715.9
Accumulated impairment loss	0.0	0.0
Agriculture and Turf
Changes in Amounts of Goodwill
Goodwill - net, beginning balance	227.0	235.0
Acquisitions	94.0
Translation adjustments	3.0	(17.0)
Goodwill - net, ending balance	324.0	218.0
Construction and Forestry
Changes in Amounts of Goodwill
Goodwill - net, beginning balance	499.0	556.0
Translation adjustments	1.0	(58.0)
Goodwill - net, ending balance	$ 500.0	$ 498.0

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.

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

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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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.

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Amount of accumulated impairment loss for 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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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