| **Consolidated Statements of Stockholders' Equity (Deficit) (USD $)In Millions**                                                                        | Total     | Series D Convertible Junior Preference Stock | Common Stock | Additional Paid-in Capital | Comprehensive Income | Accumulated Deficit | Accumulated Other Comprehensive Loss | Common Stock Held in Treasury, at Cost | Stockholders Equity Attributable to Noncontrolling Interests |
|---------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|----------------------------------------------|--------------|----------------------------|----------------------|---------------------|--------------------------------------|----------------------------------------|--------------------------------------------------------------|
| Balance at Oct. 31, 2009                                                                                                                                | $ (1,642) |                                              | $ 4          | $ 7                        | $ 2,181              | Â                   |                                      | $ (2,072)                              |                                                              | $ (1,674) | $ (149) | $ 61 |
| Net income                                                                                                                                              | 217       | [1]                                          | Â            | Â                          | Â                    | 179                 | [1]                                  | 179                                    | [1]                                                          | Â | Â | 38 |
| **Other comprehensive income:**                                                                                                                         | Â         |                                              | Â            | Â                          | Â                    | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Foreign currency translation adjustments                                                                                                                | (4)       |                                              | Â            | Â                          | Â                    | (4)                 |                                      | Â                                      |                                                              | Â | Â | Â |
| US OPEB re-measurement                                                                                                                                  | 309       |                                              | Â            | Â                          | Â                    | 309                 |                                      | Â                                      |                                                              | Â | Â | Â |
| Other post employment benefits                                                                                                                          | 65        |                                              | Â            | Â                          | Â                    | 65                  |                                      | Â                                      |                                                              | Â | Â | Â |
| Total other comprehensive income                                                                                                                        | Â         |                                              | Â            | Â                          | Â                    | 370                 |                                      | Â                                      |                                                              | 370 | Â | Â |
| Total comprehensive income                                                                                                                              | Â         |                                              | Â            | Â                          | Â                    | 549                 |                                      | Â                                      |                                                              | Â | Â | Â |
| Transfer from redeemable equity securities upon exercise or expiration of stock options                                                                 | 4         |                                              | Â            | Â                          | 4                    | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Stock-based compensation                                                                                                                                | 15        |                                              | Â            | Â                          | 15                   | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Stock ownership programs                                                                                                                                | 26        |                                              | Â            | Â                          | 2                    | Â                   |                                      | Â                                      |                                                              | Â | 24 | Â |
| Cash dividends paid to non-controlling interest                                                                                                         | (45)      |                                              | Â            | Â                          | Â                    | Â                   |                                      | Â                                      |                                                              | Â | Â | (45) |
| Other                                                                                                                                                   | 1         |                                              | Â            | Â                          | (1)                  | Â                   |                                      | Â                                      |                                                              | Â | Â | 2 |
| Balance at Jul. 31, 2010                                                                                                                                | (1,054)   | [1]                                          | 4            | 7                          | 2,201                | Â                   |                                      | (1,893)                                | [1]                                                          | (1,304) | (125) | 56 |
| Balance at Oct. 31, 2010                                                                                                                                | (932)     |                                              | 4            | 7                          | 2,206                | Â                   |                                      | (1,878)                                |                                                              | (1,196) | (124) | 49 |
| Net income                                                                                                                                              | 1,503     |                                              | Â            | Â                          | Â                    | 1,468               |                                      | 1,468                                  |                                                              | Â | Â | 35 |
| **Other comprehensive income:**                                                                                                                         | Â         |                                              | Â            | Â                          | Â                    | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Foreign currency translation adjustments                                                                                                                | 65        |                                              | Â            | Â                          | Â                    | 65                  |                                      | Â                                      |                                                              | Â | Â | Â |
| Other post employment benefits                                                                                                                          | 65        |                                              | Â            | Â                          | Â                    | 65                  |                                      | Â                                      |                                                              | Â | Â | Â |
| Total other comprehensive income                                                                                                                        | Â         |                                              | Â            | Â                          | Â                    | 130                 |                                      | Â                                      |                                                              | 130 | Â | Â |
| Total comprehensive income                                                                                                                              | Â         |                                              | Â            | Â                          | Â                    | 1,598               |                                      | Â                                      |                                                              | Â | Â | Â |
| Transfer from redeemable equity securities upon exercise or expiration of stock options                                                                 | 3         |                                              | Â            | Â                          | 3                    | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Stock-based compensation                                                                                                                                | 24        |                                              | Â            | Â                          | 24                   | Â                   |                                      | Â                                      |                                                              | Â |   | Â |
| Stock ownership programs                                                                                                                                | 33        |                                              | Â            | Â                          | 10                   | Â                   |                                      | Â                                      |                                                              | Â | 23 | Â |
| Stock repurchase program                                                                                                                                | (11)      |                                              | Â            | Â                          | Â                    | Â                   |                                      | Â                                      |                                                              | Â | (11) | Â |
| Impact to additional paid-in capital for valuation allowance release                                                                                    | 45        |                                              | Â            | Â                          | 45                   | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Cash dividends paid to non-controlling interest                                                                                                         | (43)      |                                              | Â            | Â                          | Â                    | Â                   |                                      | Â                                      |                                                              | Â | Â | (43) |
| Other                                                                                                                                                   | 0         |                                              | (1)          | Â                          | 1                    | Â                   |                                      | Â                                      |                                                              | Â | Â | Â |
| Balance at Jul. 31, 2011                                                                                                                                | $ 752     |                                              | $ 3          | $ 7                        | $ 2,289              | Â                   |                                      | $ (410)                                |                                                              | $ (1,066) | $ (112) | $ 41 |
|                                                                                                                                                         |
| [1]Certain amounts have been revised to reflect a retrospective change in accounting principle. See Note 1, Summary of significant accounting policies. |

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Adjustment to additional paid in capital for the transfer from redeemable preferred stock that is classified as temporary equity upon exercise or expiration of options.
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| - Definition
Net changes to accumulated comprehensive income during the period related to postemployment benefit, after tax.
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Net changes to accumulated comprehensive income during the period related to remeasurement of postemployment benefits, after tax.
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| - Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".
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| - Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.
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| - Definition
Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.
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| - Definition
This element represents Other Comprehensive Income or Loss, Net of Tax, for the period.  Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.
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| - Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total of Stockholders' Equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity including portions attributable to both the parent and noncontrolling interests (previously referred to as minority interest), if any. The entity including portions attributable to the parent and noncontrolling interests is sometimes referred to as the economic entity. This excludes temporary equity and is sometimes called permanent equity.
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| - Definition
This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Aggregate value of stock issued during the period as a result of employee stock ownership plan (ESOP).
+ References
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| - Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 1 -Section B -Paragraph 7 -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.
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