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Inventories - Inventory (Details) (USD $) In Millions, unless otherwise specified	Jul. 31, 2013	Oct. 31, 2012
Inventory Disclosure [Abstract]
Finished products	$ 764	$ 833
Work in process	92	136
Raw materials	480	568
Total inventories	$ 1,336	$ 1,537

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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