| **Allowance for Doubtful Accounts**            | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Allowance for Doubtful Accounts [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| Allowance for Doubtful Accounts                | Allowance for Doubtful AccountsOur two portfolio segments, retail and wholesale, each consist of one class of receivable based on: (i) initial measurement attributes of the receivables, and (ii) the assessment and monitoring of risk and performance of the receivables. For more information, see Note 4, Finance Receivables.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 April 30, 2013 Three Months Ended April 30, 2012(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables Total RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$23 $2 $24 $49 $28 $3 $16 $47Provision for doubtful accounts, net of recoveries1 — 10 11 — (1) 1 —Charge-off of accounts(A)(3) — — (3) (2) — — (2)Other(B)1 — — 1 — — — —Allowance for doubtful accounts, at end of period$22 $2 $34 $58 $26 $2 $17 $45 Six Months Ended April 30, 2013 Six Months Ended April 30, 2012(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables Total RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$27 $— $24 $51 $31 $3 $16 $50Provision for doubtful accounts, net of recoveries(1) 2 10 11 (2) (1) 3 —Charge-off of accounts(A)(6) — — (6) (3) — (2) (5)Other(B)2 — — 2 — — — —Allowance for doubtful accounts, at end of period$22 $2 $34 $58 $26 $2 $17 $45_________________________(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 less than $1 million for both the three and six months ended April 30, 2013 and $2 million and $3 million for the three and six months ended April 30, 2012, respectively.(B)Amounts include currency translation.The accrual of interest income is discontinued on certain impaired finance receivables. Impaired finance receivables include accounts with specific loss reserves and certain accounts that are on non-accrual status. In certain cases, we continue to collect payments on our impaired finance receivables.The following table presents information regarding impaired finance receivables: April 30, 2013 October 31, 2012(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalImpaired finance receivables with specific loss reserves$12 $— $12 $14 $— $14Impaired finance receivables without specific loss reserves1 — 1 1 — 1Specific loss reserves on impaired finance receivables7 — 7 9 — 9Finance receivables on non-accrual status9 — 9 10 — 10For the impaired finance receivables in the retail portfolio as of April 30, 2013 and 2012, the average balances of those receivables were $13 million and $17 million during the six months ended April 30, 2013 and 2012, respectively.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: April 30, 2013 October 31, 2012(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalCurrent, and up to 30 days past due$923 $1,142 $2,065 $965 $1,126 $2,09130-90 days past due36 4 40 72 1 73Over 90 days past due9 2 11 11 1 12Total finance receivables$968 $1,148 $2,116 $1,048 $1,128 $2,176 |

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| - Definition
The entire disclosure for allowance for credit losses.
+ References
No definition available.
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