Other Financial Data (Inventories, Net) (Details) (USD $) In Millions, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Inventory, Net [Abstract]
Finished goods	$ 323	$ 319
Work-in-process and production materials	378	363
Inventories, gross	701	682
Less inventory reserves	(163)	(170)
Inventories, net	$ 538	$ 512

The amount of the valuation account as of the balance sheet date which reduces the carrying amount of inventory to net realizable value; takes into consideration such factors as market value, excessive quantities based on expected sales, technological obsolescence, and shrinkage. May also provide for estimated product returns or price concessions pertaining to product cost.

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+ Details