Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Name:	us-gaap_AssetImpairmentCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring and Impairments - Schedule of Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	$ 5	$ 3	$ 7	$ 5
North America Truck [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges			$ 7
North America Truck [Member] \| Pure Power Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges				3
North America Truck [Member] \| Other Certain Long-lived Assets [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges				$ 2