Annual report pursuant to Section 13 and 15(d)

Stock-Based Incentive Compensation Plans (Details) (Stock Option Activities)

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Stock-Based Incentive Compensation Plans (Details) (Stock Option Activities) (Stock Options, USD $)
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Stock Options
      
Number of Options [Roll Forward]      
Stock options, shares outstanding at beginning of year 38,000,000 34,000,000 37,000,000
Stock options, shares granted 6,000,000 17,000,000 8,000,000
Stock options, shares cancelled (6,000,000) (8,000,000) (6,000,000)
Stock options, shares exercised (3,000,000) (5,000,000) (5,000,000)
Stock options, shares outstanding at end of year 35,000,000 38,000,000 34,000,000
Stock options, shares exercisable at end of year 22,000,000 22,000,000 25,000,000
Weighted Average Exercise Price [Roll Forward]      
Stock options, shares outstanding at beginning of year, weighted average exercise price $ 5.51 $ 7.36 $ 7.77
Stock options, shares granted, weighted average exercise price $ 3.63 $ 3.41 $ 7.16
Stock options, shares cancelled, weighted average exercise price $ 7.73 $ 11.26 $ 12.54
Stock options, shares exercised, weighted average exercise price $ 1.56 $ 2.71 $ 3.82
Stock options, shares outstanding at end of year, weighted average exercise price $ 5.08 $ 5.51 $ 7.36
Stock options, shares exercisable at end of year, weighted average exercise price $ 5.62 $ 6.14 $ 7.48