| **Debt**                       | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            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| **Debt Disclosure [Abstract]** | Â                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| Debt                           | Debt  July 31, 2011 October 31, 2010(in millions)    Manufacturing operations    8.25% Senior Notes, due 2021, net of unamortized discount of $33 million and $35 million, at the respective dates $967 $9653.0% Senior Subordinated Convertible Notes, due 2014, net of unamortized discount of $79 million and $94 million, at the respective dates 491 476Debt of majority-owned dealerships 109 66Financing arrangements and capital lease obligations 123 221Loan Agreement related to 6.5% Tax Exempt Bonds, due 2040 225 225Other 41 33Total manufacturing operations debt 1,956 1,986Less: Current portion 102 145Net long-term manufacturing operations debt $1,854 $1,841Financial services operations    Asset-backed debt issued by consolidated SPEs, at variable rates, due serially through 2018 $1,553 $1,731Bank revolvers, at fixed and variable rates, due dates from 2012 through 2018 876 974Commercial paper, at variable rates, due serially through 2012 91 67Borrowings secured by operating and finance leases, at various rates, due serially through 2017 79 112Total financial services operations debt 2,599 2,884Less: Current portion 652 487Net long-term financial services operations debt $1,947 $2,397Manufacturing OperationsIn October 2009, we completed the sale of $570 million aggregate principal amount of our 3.0% Senior Subordinated Convertible Notes due 2014 (the “Convertible Notes”). Holders may convert the Convertible Notes into common stock of the Company at any time on or after April 15, 2014. Holders may also convert the Convertible Notes at their option prior to April 15, 2014, under the following circumstances: (i) during any fiscal quarter commencing after January 31, 2010, if the last reported sale price of the common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the preceding fiscal quarter is greater than or equal to 130% of the applicable conversion price on each such trading day; (ii) during the five business day period after any five consecutive trading day period (the “Measurement Period”) in which the trading price per $1,000 principal amount of notes for each trading day of that Measurement Period was less than 98% of the product of the last reported sale price of the common stock and the applicable conversion rate on each such trading day; or (iii) upon the occurrence of specified corporate events, as more fully described in the Convertible Indenture. The conversion rate is initially 19.8910 shares of common stock per $1,000 principal amount of Convertible Notes (equivalent to an initial conversion price of approximately $50.27 per share of common stock). The conversion rate may be adjusted for anti-dilution provisions and the conversion price may be decreased by the Board of Directors to the extent permitted by law and listing requirements.The Convertible Notes can be settled in common stock, cash, or a combination of common stock and cash. Upon conversion, the Company will satisfy its conversion obligations by delivering, at its election, shares of common stock (plus cash in lieu of fractional shares), cash, or any combination of cash and shares of common stock. If the Company elects to settle in cash or a combination of cash and shares, the amounts due upon conversion will be based on a daily conversion value calculated on a proportionate basis for each trading day in a 40 trading-day observation period. If a holder converts its Convertible Notes on or after April 15, 2014, and the Company elects physical settlement as described above, the holder will not receive the shares of common stock into which the Convertible Notes are convertible until after the expiration of the observation period described above, even though the number of shares the holder will receive upon settlement will not change. It is our policy to settle the principal and accrued interest on the Convertible Notes with cash. In certain cases, holders may require the Company to repurchase, for cash, all or part of the Convertible Notes at a price equal to 100% of the principal amount of the Convertible Notes being repurchased plus any accrued and unpaid interest.Based upon the closing price of our common stock for the prescribed measurement period during the three months ended April 30, 2011, the contingent conversion threshold on the Convertible Notes was exceeded. As a result, the Convertible Notes were convertible at the option of any holder that provided a valid conversion notice prior to July 31, 2011. Accordingly, since it is our policy to settle the principal and accrued interest on the Convertible Notes with cash, we reclassified (i) the portion of the Convertible Notes attributable to the conversion feature, which had not yet been accreted to its face value, from Additional paid in capital to Convertible debt and (ii) the carrying value of the Convertible Notes from Long-term debt to Notes payable and current maturities of long-term debt on our Consolidated Balance Sheet as of  April 30, 2011. In cases where holders decide to convert prior to the maturity date, the Company will immediately write off the proportionate amount of remaining debt issue costs.  We received conversion notices from holders of an immaterial amount of the Convertible Notes during the conversion period. Based upon the closing price of our common stock for the prescribed measurement period during the three months ended July 31, 2011, the contingent conversion thresholds on the Convertible Notes was not exceeded and the carrying value of the Convertible Notes and the portion of the Convertible Notes attributable to the conversion feature were reclassified to Long-term debt and Additional paid in capital, respectively,on our Consolidated Balance Sheet as of July 31, 2011.  The determination of whether the Convertible Notes are convertible is performed on a quarterly basis.  Consequently, the Convertible Notes may meet the contingent conversion thresholds and therefore may be reclassified to Notes payable and current maturities of long-term debt and Convertible debt in future periods.Financial Services OperationsTRAC, our consolidated SPE, utilized a $100 million funding facility arrangement that provided for the funding of eligible retail accounts receivables. Subsequent to the adoption of new accounting guidance on accounting for transfers of financial assets, transfers of finance receivables from our Financial Services segment to the TRAC funding facility completed prior to November 1, 2010 retained their sale accounting treatment while transfers of finance receivables subsequent to November 1, 2010 no longer receive sale accounting treatment. Accordingly, borrowings secured by the transferred receivables are included in Notes payable and current maturities of long-term debt within our Consolidated Balance Sheet as of July 31, 2011. In January 2011, the maturity of the funding facility maturity was extended to March 2011, and in March 2011, the funding facility was refinanced with a maturity date of March 2012. As of July 31, 2011, all borrowings of the SPE are included in our consolidated financial statements. |

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| - Definition
The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644
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