Other Financial Data (Inventories, Net) (Details) (USD $) In Millions, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Inventory, Net [Abstract]
Finished goods	$ 247	$ 244
Work-in-process and production materials	433	432
Inventories, gross	680	676
Less inventory reserves	(165)	(163)
Inventories, net	$ 515	$ 513

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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Reference 7: http://www.xbrl.org/2003/role/presentationRef

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+ Details