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Inventories (Details) (USD $) In Millions, unless otherwise specified	Aug. 03, 2012	Feb. 03, 2012
Inventories, net:
Production materials	$ 821	$ 753
Work-in-process	250	239
Finished goods	544	412
Total	$ 1,615	$ 1,404

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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