| **Debt - Financial Services Operations (Details) (USD $)In Millions, unless otherwise specified**    | Oct. 31, 2013 | Oct. 31, 2012 |
|------------------------------------------------------------------------------------------------------|---------------|---------------|
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | $ 5,085       |          |
| Debt, Current                                                                                        | 1,163         | 1,205         |
| Long-term Debt and Capital Lease Obligations                                                         | 3,922         | 3,566         |
| Financial Services Operations [Member]                                                               |          |          |
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | 1,866         | 1,866         |
| Debt, Current                                                                                        | 505           | 1,033         |
| Long-term Debt and Capital Lease Obligations                                                         | 1,361         | 833           |
| Financial Services Operations [Member] | Secured Debt [Member]                                       |          |          |
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | 778           | 994           |
| Financial Services Operations [Member] | Line of Credit [Member]                                     |          |          |
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | 1,018         | 763           |
| Financial Services Operations [Member] | Commercial Paper [Member]                                   |          |          |
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | 21            | 31            |
| Financial Services Operations [Member] | Borrowings Secured By Operating and Finance Leases [Member] |          |          |
| **Debt Instrument [Line Items]**                                                                     |          |          |
| Long-term Debt, net                                                                                  | $ 49          | $ 78          |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.
+ References
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