| **Inventories (Tables)**            | 12 Months Ended                                                                                                                                                                                                   |
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| **Inventory Disclosure [Abstract]** |                                                                                                                                                                                                              |
| Schedule of inventories             | As of October 31, the components of Inventories are as follows: (in millions)2012 2011Finished products$833 $873Work in process136 174Raw materials568 667Total inventories$1,537 $1,714 |

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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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