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Summary Of Significant Accounting Policies (Deferred Revenue And Related Product Costs) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 25, 2010
Summary Of Significant Accounting Policies [Abstract]
Deferred revenue	$ 202	$ 254
Deferred cost of sales	(79)	(111)
Deferred income on shipments to distributors	$ 123	$ 143

The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income.

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