Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details) (Schedule of Gross Unrecognized Tax Benefits)

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Income Taxes (Details) (Schedule of Gross Unrecognized Tax Benefits) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Dec. 25, 2010
Schedule of Gross Unrecognized Tax Benefits [Line Items]      
Unrecognized Tax Benefits, Beginning Balance $ 69 $ 42 $ 166
Increases Resulting from Prior Period Tax Positions 3 28 0
Decreases Resulting from Prior Period Tax Positions (4) (4) (8)
Increases Resulting from Current Period Tax Positions 3 8 7
Decreases Resulting from Current Period Tax Positions (15) (5) (119)
Reductions Resulting from Lapse of Applicable Statute of Limitations 0 0 (4)
Unrecognized Tax Benefits, Ending Balance $ 56 $ 69 $ 42