Annual report pursuant to Section 13 and 15(d)

Stock-Based Incentive Compensation Plans (Schedule Of Changes In Restricted Stock Awards Outstanding) (Details)

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Stock-Based Incentive Compensation Plans (Schedule Of Changes In Restricted Stock Awards Outstanding) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 25, 2010
Dec. 26, 2009
Stock-Based Incentive Compensation Plans [Abstract]      
Nonvested balance at beginning of period, Number of Shares 24 22 11
Granted, Number of Shares 14 12 17
Forfeited, Number of Shares (4) (2) (2)
Vested, Number of Shares (10) (8) (4)
Nonvested balance at end of period, Number of Shares 24 24 22
Nonvested balance at beginning of period, Weighted-Average Grant Date Fair Value $ 6.50 $ 5.32 $ 11.09
Granted, Weighted-Average Grant Date Fair Value $ 7.34 $ 8.54 $ 4.12
Forfeited, Weighted-Average Grant Date Fair Value $ 6.66 $ 6.13 $ 9.70
Vested, Weighted-Average Grant Date Fair Value $ 6.25 $ 6.41 $ 13.68
Nonvested balance at end of period, Weighted-Average Grant Date Fair Value $ 7.07 $ 6.50 $ 5.32