| **Fair Value Measurements - Financial Instruments Measured on Recurring Basis (Details) (Fair Value, Measurements, Recurring [Member], USD $)In Millions, unless otherwise specified** | Oct. 31, 2012 | Oct. 31, 2011 |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|---------------|
| Total [Member]                                                                                                                                                                         |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Total assets                                                                                                                                                                           | $ 466         | $ 722         |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Guarantees                                                                                                                                                                             | 7             | 6             |
| Total liabilities                                                                                                                                                                      | 11            | 16            |
| Total [Member] | Commodity Contract [Member]                                                                                                                                           |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 1             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  | 4             | 6             |
| Total [Member] | Foreign Currency Contract [Member]                                                                                                                                    |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 3             |
| Total [Member] | Cross Currency Interest Rate Contract [Member]                                                                                                                        |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  |          | 4             |
| Total [Member] | US Treasury Bill Securities [Member]                                                                                                                                  |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 420           | 283           |
| Total [Member] | Other US and Non-US Government Bonds [Member]                                                                                                                         |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          |          | 415           |
| Total [Member] | Other [Member]                                                                                                                                                        |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 46            | 20            |
| Fair Value, Inputs, Level 1 [Member]                                                                                                                                                   |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Total assets                                                                                                                                                                           | 466           | 718           |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Guarantees                                                                                                                                                                             | 0             | 0             |
| Total liabilities                                                                                                                                                                      | 0             | 0             |
| Fair Value, Inputs, Level 1 [Member] | Commodity Contract [Member]                                                                                                                     |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 0             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  | 0             | 0             |
| Fair Value, Inputs, Level 1 [Member] | Foreign Currency Contract [Member]                                                                                                              |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 0             |
| Fair Value, Inputs, Level 1 [Member] | Cross Currency Interest Rate Contract [Member]                                                                                                  |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  |          | 0             |
| Fair Value, Inputs, Level 1 [Member] | US Treasury Bill Securities [Member]                                                                                                            |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 420           | 283           |
| Fair Value, Inputs, Level 1 [Member] | Other US and Non-US Government Bonds [Member]                                                                                                   |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          |          | 415           |
| Fair Value, Inputs, Level 1 [Member] | Other [Member]                                                                                                                                  |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 46            | 20            |
| Fair Value, Inputs, Level 2 [Member]                                                                                                                                                   |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Total assets                                                                                                                                                                           | 0             | 3             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Guarantees                                                                                                                                                                             | 0             | 0             |
| Total liabilities                                                                                                                                                                      | 4             | 7             |
| Fair Value, Inputs, Level 2 [Member] | Commodity Contract [Member]                                                                                                                     |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 0             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  | 4             | 3             |
| Fair Value, Inputs, Level 2 [Member] | Foreign Currency Contract [Member]                                                                                                              |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 3             |
| Fair Value, Inputs, Level 2 [Member] | Cross Currency Interest Rate Contract [Member]                                                                                                  |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  |          | 4             |
| Fair Value, Inputs, Level 2 [Member] | US Treasury Bill Securities [Member]                                                                                                            |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 0             | 0             |
| Fair Value, Inputs, Level 2 [Member] | Other US and Non-US Government Bonds [Member]                                                                                                   |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          |          | 0             |
| Fair Value, Inputs, Level 2 [Member] | Other [Member]                                                                                                                                  |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 0             | 0             |
| Fair Value, Inputs, Level 3 [Member]                                                                                                                                                   |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Total assets                                                                                                                                                                           | 0             | 1             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Guarantees                                                                                                                                                                             | 7             | 6             |
| Total liabilities                                                                                                                                                                      | 7             | 9             |
| Fair Value, Inputs, Level 3 [Member] | Commodity Contract [Member]                                                                                                                     |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 1             |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  | 0             | 3             |
| Fair Value, Inputs, Level 3 [Member] | Foreign Currency Contract [Member]                                                                                                              |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Asset derivatives                                                                                                                                                                      |          | 0             |
| Fair Value, Inputs, Level 3 [Member] | Cross Currency Interest Rate Contract [Member]                                                                                                  |          |          |
| **Derivative financial instruments:**                                                                                                                                                  |          |          |
| Liability derivatives                                                                                                                                                                  |          | 0             |
| Fair Value, Inputs, Level 3 [Member] | US Treasury Bill Securities [Member]                                                                                                            |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | 0             | 0             |
| Fair Value, Inputs, Level 3 [Member] | Other US and Non-US Government Bonds [Member]                                                                                                   |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          |          | 0             |
| Fair Value, Inputs, Level 3 [Member] | Other [Member]                                                                                                                                  |          |          |
| **Assets**                                                                                                                                                                             |          |          |
| Available-for-sale securities                                                                                                                                                          | $ 0           | $ 0           |

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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -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 FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -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 FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -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 FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959
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| X                                                                                                                                                                          |
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of contractual guarantees to which the Company is obligated as of the balance sheet date.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12201-110248Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 3, 8, 15 -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.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
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