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Inventories (Details) (USD $) In Millions, unless otherwise specified	Oct. 31, 2011	Oct. 31, 2010
Inventory [Line Items]
Finished products	$ 873	$ 893
Work in process	174	202
Raw materials	667	473
Total inventories	$ 1,714	$ 1,568

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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