| **Allowance for Doubtful Accounts (Tables)**                            | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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| **Allowance for Doubtful Accounts [Abstract]**                          |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Allowance for Credit Losses on Financing Receivables [Table Text Block] | Allowance for Doubtful AccountsWe have two portfolio segments of finance receivables based on the type of financing inherent to each portfolio segment. The retail portfolio segment represents loans or leases to end-users for the purchase or lease of vehicles. The wholesale portfolio segment represents loans to dealers to finance their inventory. Each portfolio segment consists 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.The activity related to our allowance for doubtful accounts for our retail portfolio segment, wholesale portfolio segment, and trade and other receivables is summarized as follows: October 31, 2012(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$31 $2 $17 $50Provision for doubtful accounts, net of recoveries3 (2) 13 14Charge-off of accounts(A)(7) — (6) (13)Allowance for doubtful accounts, at end of period$27 $— $24 $51 October 31, 2011(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$58 $2 $36 $96Provision for doubtful accounts, net of recoveries(5) — (1) (6)Charge-off of accounts(A)(22) — (18) (40)Allowance for doubtful accounts, at end of period$31 $2 $17 $50 October 31, 2010(in millions)RetailPortfolio WholesalePortfolio Trade andOtherReceivables TotalAllowance for doubtful accounts, at beginning of period$58 $1 $45 $104Provision for doubtful accounts, net of recoveries26 1 2 29Charge-off of accounts(A)(26) — (11) (37)Allowance for doubtful accounts, at end of period$58 $2 $36 $96_________________________(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 $6 million , $20 million, and $22 million in 2012, 2011, and 2010. respectively. 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.Information regarding impaired finance receivables is as follows: As of October 31, 2012 As of October 31, 2011(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalImpaired finance receivables with specific loss reserves$14 $— $14 $15 $— $15Impaired finance receivables without specific loss reserves1 — 1 2 — 2Specific loss reserves on impaired finance receivables9 — 9 10 — 10Finance receivables on non-accrual status10 — 10 14 — 14For the impaired finance receivables in the retail portfolio as of October 31, 2012 and 2011, the average balances of those receivables were $16 million and $32 million during the year ended October 31, 2012 and 2011, respectively.The Company uses the aging of its receivables as well as other inputs when assessing credit quality. The aging analysis for finance receivables is summarized as follows: As of October 31, 2012(in millions)RetailPortfolio WholesalePortfolio TotalCurrent, and up to 30 days past due$965 $1,126 $2,09130-90 days past due72 1 73Over 90 days past due11 1 12Total finance receivables$1,048 $1,128 $2,176 |
| Impaired Financing Receivables [Table Text Block]                       | Information regarding impaired finance receivables is as follows: As of October 31, 2012 As of October 31, 2011(in millions)RetailPortfolio WholesalePortfolio Total RetailPortfolio WholesalePortfolio TotalImpaired finance receivables with specific loss reserves$14 $— $14 $15 $— $15Impaired finance receivables without specific loss reserves1 — 1 2 — 2Specific loss reserves on impaired finance receivables9 — 9 10 — 10Finance receivables on non-accrual status10 — 10 14 — 14                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |

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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.
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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=7512638&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=7512638&loc=d3e5212-111524
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