| **Fair Value Measurements (Tables)**                               | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
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| **Fair Value Disclosures [Abstract]**                              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
| Financial instruments measured at fair value, recurring basis      | The following tables present the financial instruments measured at fair value on a recurring basis:  As of April 30, 2012 Level 1 Level 2 Level 3 Total(in millions)       Assets       Marketable securities:       U.S. Treasury bills$249 $— $— $249Other U.S. and non-U.S. government bonds68 — — 68Other20 — — 20Derivative financial instruments:       Foreign currency contracts— — — —Commodity contracts— 1 — 1Total assets$337 $1 $— $338Liabilities       Derivative financial instruments:       Foreign currency contracts$— $1 $— $1Commodity contracts— 3 — 3Guarantees— — 7 7Total liabilities$— $4 $7 $11 As of October 31, 2011 Level 1 Level 2 Level 3 Total(in millions)       Assets       Marketable securities:       U.S. Treasury bills$283 $— $— $283Other U.S and non-U.S. government bonds415 — — 415Other20 — — 20Derivative financial instruments:       Commodity contracts— — 1 1Foreign currency contracts— 3 — 3Total assets$718 $3 $1 $722Liabilities       Derivative financial instruments:       Commodity contracts$— $3 $3 $6Cross currency swaps— 4 — 4Guarantees— — 6 6Total liabilities$— $7 $9 $16                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Financial instruments classified within Level 3                    | The tables below present the changes for those financial instruments classified within Level 3 of the valuation hierarchy: 2012 2011 Guarantees Retained interests Commodity contracts Guarantees Retained interests Commodity contracts(in millions)           Three Months Ended April 30           Balance at February 1$7 $— $— $— $— $5Total gains (losses) (realized/unrealized) included in earnings(A)— — — — — 2Settlements— — — — — (1)Balance at April 30$7 $— $— $— $— $6Change in unrealized gains on assets and liabilities still held$— $— $— $— $— $—Six Months Ended April 30           Balance at November 1$6 $— $(2) $— $53 $2Total gains (losses) (realized/unrealized) included in earnings(A)— — (1) — 1 6Transfers into Level 3— — — — — —Transfers out of Level 3— — 2 — — —Issuances1 — — — — —Settlements— — 1 — (54) (2)Balance at April 30$7 $— $— $— $— $6Change in unrealized gains on assets and liabilities still held$— $— $— $— $— $3_____________(A)For commodity contracts, gains (losses) are included in Costs of products sold. For retained interests, gains recognized are included in Finance revenues.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Financial instruments measured at fair value, nonrecurring basis   | During the three and six months ended April 30, 2012 and 2011, there were no purchases or sales of Level 3 financial instruments. Additionally, for the three months ended April 30, 2012 and 2011, there were no issuances of Level 3 financial instruments and there were no transfers into or out of Level 3.The following table presents the financial instruments measured at fair value on a nonrecurring basis: Level 2 April 30, 2012 October 31, 2011(in millions)   Finance receivables(A)$6 $5_____________(A)Certain impaired finance receivables are measured at fair value on a nonrecurring basis. An impairment charge is recorded for the amount by which the carrying value of the receivables exceeds the fair value of the underlying collateral, net of remarketing costs. As of April 30, 2012, impaired receivables with a carrying amount of $16 million had specific loss reserves of $10 million and a fair value of $6 million. As of October 31, 2011, impaired receivables with a carrying amount of $15 million had specific loss reserves of $10 million and a fair value of $5 million. Fair values of the underlying collateral are determined by reference to dealer vehicle value publications adjusted for certain market factors.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Carrying values and estimated fair values of financial instruments | The carrying values and estimated fair values of financial instruments are summarized in the tables below: As of April 30, 2012 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total (in millions)         Assets         Retail notes$— $— $773 $773 $780Notes receivable— — 37 37 39Liabilities         Debt:         Manufacturing operations         8.25% Senior Notes, due 20211,011 — — 1,011 8713.0% Senior Subordinated Convertible Notes, due 2014(A)591 — — 591 508Debt of majority-owned dealerships— — 82 82 84Financing arrangements— — 128 128 132Loan Agreement related to 6.5% Tax Exempt Bonds, due 2040— 242 — 242 225Promissory Note— — 36 36 36Asset-Based Credit Facility— — 100 100 100Other— — 47 47 49Financial Services operations         Asset-backed debt issued by consolidated SPEs, at various rates, due serially through 2018— — 1,299 1,299 1,284Bank revolvers, at fixed and variable rates, due dates from 2013 through 2017— — 1,057 1,057 1,060Commercial paper, at variable rates, due serially through 201259 — — 59 59Borrowings secured by operating and finance leases, at various rates, due serially through 2017— — 64 64 66 As of October 31, 2011 Estimated Fair Value Carrying Value Level 1 Level 2 Level 3 Total (in millions)         Assets         Retail notes$— $— $954 $954 $958Notes receivable— — 47 47 47Liabilities         Debt:         Manufacturing operations         8.25% Senior Notes, due 20211,131 — — 1,131 9673.0% Senior Subordinated Convertible Notes, due 2014(A)633 — — 633 497Debt of majority-owned dealerships— — 88 88 94Financing arrangements— — 112 112 114Loan Agreement related to 6.5% Tax Exempt Bonds, due 2040— 234 — 234 225Promissory Note— — 39 39 40Asset-Based Credit Facility— — — — —Other— — 26 26 39Financial Services operations         Asset-backed debt issued by consolidated SPEs, at various rates, due serially through 2018— — 1,695 1,695 1,664Bank revolvers, at fixed and variable rates, due dates from 2013 through 2017— — 1,091 1,091 1,072Commercial paper, at variable rates, due serially through 201270 — — 70 70Borrowings secured by operating and finance leases, at various rates, due serially through 2017— — 70 70 70_________________________(A)The carrying value represents the financial statement amount of the debt after allocation of the conversion feature to equity, while the fair value is based on quoted market prices for the convertible note which includes the equity feature. |

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| - Definition
Tabular disclosure of assets and liabilities by class, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). The disclosures that may be required or desired include: (a) the fair value measurements recorded during the period and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).  Where the quoted price in an active market for the identical liability is not available, the Level 1 input is the quoted price of an identical liability when traded as an asset.
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| - Definition
Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.
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| - Definition
Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.
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| - Definition
Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).
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