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. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Schedule of Gross Unrecognized Tax Benefits [Line Items]      
Unrecognized tax benefits, beginning $ 56 $ 69 $ 42
Increases for tax positions taken in prior years 1 3 28
Decreases for tax positions taken in prior years (2) (4) (4)
Increases for tax positions taken in the current year 4 3 8
Decreases for settlements with taxing authorities (7) (15) (5)
Unrecognized tax benefits, ending $ 52 $ 56 $ 69