| **Inventories (Details) (USD $)In Millions, unless otherwise specified** | Apr. 30, 2012 | Oct. 31, 2011 |
|--------------------------------------------------------------------------|---------------|---------------|
| **Inventory Disclosure [Abstract]**                                      |          |          |
| Finished products                                                        | $ 1,039       | $ 873         |
| Work in process                                                          | 170           | 174           |
| Raw materials                                                            | 739           | 667           |
| Total inventories                                                        | $ 1,948       | $ 1,714       |

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| - Definition
Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.
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| - Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer).
+ References
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| - Definition
Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.
+ References
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| - Definition
Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.
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