| **Allowance for Doubtful Accounts (Tables)**                            | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
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| **Allowance for Doubtful Accounts [Abstract]**                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| Allowance For Credit Losses On Receivables [Table Text Block]           | The following tables present the activity related to our allowance for doubtful accounts for our retail portfolio segment, wholesale portfolio segment, and trade and other receivables: Three Months Ended July 31, 2015 Three Months Ended July 31, 2014(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables Total RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$25 $3 $30 $58 $22 $2 $38 $62Provision for doubtful accounts, net of recoveries2 — — 2 3 — — 3Charge-off of accounts(A)— — (1) (1) (2) — (3) (5)Other(B)(2) — (3) (5) 1 — (1) —Allowance for doubtful accounts, at end of period$25 $3 $26 $54 $24 $2 $34 $60 Nine Months Ended July 31, 2015 Nine Months Ended July 31, 2014(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables Total RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$24 $3 $38 $65 $21 $2 $37 $60Provision for doubtful accounts, net of recoveries7 — — 7 10 — 3 13Charge-off of accounts(A)(1) — (4) (5) (7) — (5) (12)Other(B)(5) — (8) (13) — — (1) (1)Allowance for doubtful accounts, at end of period$25 $3 $26 $54 $24 $2 $34 $60________________________(A)We repossess sold and leased vehicles on defaulted finance receivables and leases, and place them into Inventories. Losses recognized at the time of repossession and charged against the allowance for doubtful accounts were both less than $1 million, for the three and nine months ended July 31, 2015, as well as for the three and nine months ended July 31, 2014 |
| Impaired Financing Receivables [Table Text Block]                       | The following table presents information regarding impaired finance receivables: July 31, 2015 October 31, 2014(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalImpaired finance receivables with specific loss reserves$21 $— $21 $20 $— $20Impaired finance receivables without specific loss reserves— — — 1 — 1Specific loss reserves on impaired finance receivables10 — 10 6 — 6Finance receivables on non-accrual status21 — 21 21 — 21                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Allowance for Credit Losses on Financing Receivables [Table Text Block] | The Company uses the aging of its receivables as well as other inputs when assessing credit quality. The following table presents the aging analysis for finance receivables: July 31, 2015 October 31, 2014(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalCurrent, and up to 30 days past due$531 $1,369 $1,900 $643 $1,333 $1,97630-90 days past due58 2 60 64 2 66Over 90 days past due17 1 18 19 4 23Total finance receivables$606 $1,372 $1,978 $726 $1,339 $2,065                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |

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| - Definition
Tabular disclosure of total receivables and activity in the allowance for credit losses account.
+ References
No definition available.
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| - Definition
Allowance for Doubtful Accounts [Abstract]
+ References
No definition available.
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| - Definition
Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524
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| - Definition
Tabular disclosure of impaired financing receivables.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5212-111524
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