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Stock-Based Compensation (Summary Of Stock Option Activity) (Detail) (Stock Option [Member], USD $)
In Millions, except Share data in Thousands, unless otherwise specified
 12 Months Ended
Dec. 29, 2012
Y
Stock Option [Member]
  
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]  
Shares, Outstanding at beginning of year 2,533
Shares, Granted 621
Shares, Exercised (962)
Shares, Forfeited or expired (31)
Shares, Outstanding at end of year 2,161
Shares, Exercisable, end of year 1,009
Exercise Price per Share, beginning of year $ 45.07 [1]
Exercise Price per Share, Granted $ 60.01 [1]
Exercise Price per Share, Exercised $ 42.23 [1]
Exercise Price Per Share, Forfeited or expired $ 55.57 [1]
Exercise Price per Share, Outstanding, end of year $ 50.48 [1]
Exercise Price per Share, Exercisable, end of year $ 43.16 [1]
Outstanding Remaining Contractual Term (in years), end of year 7.1 [1]
Exercisable Remaining Contractual Term (in years), end of year 5.5 [1]
Outstanding,Average Intrinsic Value, End of year $ 58.0
Exercisable,Average Intrinsic Value, End of year $ 34.5
[1] Weighted-average