| **Inventories (Tables)**            | 6 Months Ended                                                                                                                                                                                                                                |
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| **Inventory Disclosure [Abstract]** |                                                                                                                                                                                                                                          |
| Schedule of inventories             | The following table presents the components of Inventories: (in millions)April 30, 2013 October 31, 2012Finished products$852 $833Work in process111 136Raw materials513 568Total inventories$1,476 $1,537 |

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| - Definition
Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5
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