Allowance for Doubtful Accounts - Schedule of Impaired Finance Receivables (Details) - USD ($) $ in Millions	Oct. 31, 2015	Oct. 31, 2014
Impaired finance receivables with specific loss reserves [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 21	$ 20
Impaired finance receivables with specific loss reserves [Member] \| Retail Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	21	20
Impaired finance receivables with specific loss reserves [Member] \| Wholesale Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	0	0
Impaired financing receivable without specific loss reserves [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	0	1
Impaired financing receivable without specific loss reserves [Member] \| Retail Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	0	1
Impaired financing receivable without specific loss reserves [Member] \| Wholesale Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Impaired Financing Receivable, Recorded Investment	0	0
Specific loss reserves on impaired finance receivables [Member]
Finance Receivable, Impaired [Line Items]
Specific loss reserves on impaired finance receivables	9	6
Specific loss reserves on impaired finance receivables [Member] \| Retail Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Specific loss reserves on impaired finance receivables	9	6
Specific loss reserves on impaired finance receivables [Member] \| Wholesale Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Specific loss reserves on impaired finance receivables	0	0
Finance receivable non-accrual status [Member]
Finance Receivable, Impaired [Line Items]
Finance receivables on non-accrual status	21	21
Finance receivable non-accrual status [Member] \| Retail Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Finance receivables on non-accrual status	21	21
Finance receivable non-accrual status [Member] \| Wholesale Portfolio [Member]
Finance Receivable, Impaired [Line Items]
Finance receivables on non-accrual status	$ 0	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5111-111524

+ Details

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Period Type:	instant

- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 14A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953550-111524

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- Definition

Amount of allowance for credit losses related to recorded investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524

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