| **Debt - Schedule of Debt Instruments (Details) - USD ($) $ in Millions**                                                                                  | Jul. 31, 2016 | Oct. 31, 2015 |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt and Capital Lease Obligations                                                                                                               | $ 3,676       | $ 4,188       |
| Financial Services Operations [Member]                                                                                                                     |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt and Capital Lease Obligations, Including Current Maturities                                                                                 | 1,934         | 2,100         |
| Long-term Debt and Capital Lease Obligations, Current                                                                                                      | 1,322         | 1,007         |
| Long-term Debt and Capital Lease Obligations                                                                                                               | 612           | 1,093         |
| Financial Services Operations [Member] | Secured Debt [Member]                                                                                             |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 867           | 870           |
| Financial Services Operations [Member] | Line of Credit [Member]                                                                                           |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 874           | 1,063         |
| Financial Services Operations [Member] | Commercial Paper [Member]                                                                                         |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 93            | 86            |
| Financial Services Operations [Member] | Borrowings Secured By Operating and Finance Leases [Member]                                                       |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 100           | 81            |
| Manufacturing Operations [Member]                                                                                                                          |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt and Capital Lease Obligations, Including Current Maturities                                                                                 | 3,131         | 3,198         |
| Long-term Debt and Capital Lease Obligations, Current                                                                                                      | 67            | 103           |
| Long-term Debt and Capital Lease Obligations                                                                                                               | 3,064         | 3,095         |
| Manufacturing Operations [Member] | Line of Credit [Member]                                                                                                |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Debt Instrument, Unamortized Discount                                                                                                                      | 14            | 17            |
| Long-term Debt                                                                                                                                             | 1,020         | 1,023         |
| Manufacturing Operations [Member] | Notes Payable to Banks [Member] | Eight Point Two Five Percent Senior Notes [Member]                                   |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 16          | 18            |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 8.25%         |          |
| Long-term Debt                                                                                                                                             | $ 1,184       | 1,182         |
| Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Five Zero Senior Subordinated Convertible Notes [Member]           |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 11          | 14            |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 4.50%         |          |
| Long-term Debt                                                                                                                                             | $ 189         | 186           |
| Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member] |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Debt Instrument, Unamortized Discount                                                                                                                      | $ 26          | 32            |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 4.75%         |          |
| Long-term Debt                                                                                                                                             | $ 385         | 379           |
| Manufacturing Operations [Member] | Debt Of Majority Owned Dealerships [Member]                                                                            |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 13            | 28            |
| Manufacturing Operations [Member] | Financing Arrangements and Capital Lease Obligations [Member]                                                          |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | $ 44          | 49            |
| Manufacturing Operations [Member] | Tax Exempt Bond [Member]                                                                                               |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Debt Instrument, Interest Rate, Stated Percentage                                                                                                          | 6.50%         |          |
| Long-term Debt                                                                                                                                             | $ 225         | 225           |
| Manufacturing Operations [Member] | Financed lease obligations [Member]                                                                                    |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | 61            | 111           |
| Manufacturing Operations [Member] | Notes Payable, Other Payables [Member]                                                                                 |          |          |
| **Debt Instrument [Line Items]**                                                                                                                           |          |          |
| Long-term Debt                                                                                                                                             | $ 10          | $ 15          |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Contractual interest rate for funds borrowed, under the debt agreement.
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| - Definition
Amount, after accumulated amortization, of debt discount.
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| - Definition
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
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| - Definition
Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.
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| - Definition
Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.
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