Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

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Basis of Presentation (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 25, 2011
Dec. 26, 2010
Sep. 30, 2012
Sep. 25, 2011
Notes to Financial Statements [Abstract]        
Number of weeks in a fiscal period 13 weeks 13 weeks 52-53 week 52-53 week
Incremental Dilutive Common Share Equivalents [Abstract]        
Incremental dilutive common share equivalents (in shares) 37,052,000 25,507,000    
Accumulated Other Comprehensive Income (Loss) [Abstract]        
Other-than-temporary loss, not credit loss, net of tax, available-for-sale securities $ 12,000,000     $ 13,000,000
Share-Based Compensation [Abstract]        
Share-based compensation expense related to share-based award 33,000,000 13,000,000    
Incremental tax benefit from stock options exercised 23,000,000 45,000,000    
Total unrecognized compensation cost for non-vested stock options 537,000,000      
Total unrecognized compensation cost for non-vested employee restricted stock units $ 1,100,000,000      
Weighted-average recognition period for non-vested employee stock options (in years) 1.8      
Weighted average recognition period for non-vested employee restricted stock units (in years) 2.3      
Net share-based awards granted, after forfeitures and cancellations, as a percentage of outstanding shares as of the beginning of each fiscal period 0.50% 0.40%    
Total share-based awards granted during the period as a percentage of outstanding shares as of the end of each fiscal period 0.50% 0.50%