Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Incentive Compensation Plans (Narrative) (Details)

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Stock-Based Incentive Compensation Plans (Narrative) (Details) (USD $)
3 Months Ended 9 Months Ended
Oct. 01, 2011
Sep. 25, 2010
Oct. 01, 2011
Sep. 25, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee stock options granted 1,990,130 1,142,037 6,614,227 3,972,278
Weighted average grant date fair values of employee stock options $ 2.68 $ 2.75 $ 2.88 $ 3.28
Restricted stock units granted 1,469,772 567,795 12,427,171 11,006,141
Weighted average grant date fair value of restricted stock units $ 6.50 $ 6.56 $ 7.49 $ 8.63
Employee Performance Options [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee stock options granted 739,000      
Weighted average grant date fair values of employee stock options $ 2.77      
Performance Restricted Stock Units [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units granted 287,000      
Weighted average grant date fair value of restricted stock units $ 4.42