Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Activity Between Levels of the Fair Value Hierarchy (Details)

v2.4.0.6
Fair Value Measurements Activity Between Levels of the Fair Value Hierarchy (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 25, 2011
Dec. 26, 2010
Other Liabilities [Member]
   
Activity for Marketable Securities Classified Within Level 3 of the Valuation Hierarchy [Roll Forward]    
Beginning balance of Level 3 $ 7  
Total realized and unrealized gains or losses [Abstract]    
Included in investment income, net (1)  
Included in other comprehensive income 0  
Purchases 0  
Settlements 0  
Ending balance of Level 3 6  
Auction Rate Securities [Member]
   
Activity for Marketable Securities Classified Within Level 3 of the Valuation Hierarchy [Roll Forward]    
Beginning balance of Level 3 124 126
Total realized and unrealized gains or losses [Abstract]    
Included in investment income, net 0  
Included in other comprehensive income (1) 2
Purchases 0  
Settlements (1) (2)
Ending balance of Level 3 122 126
Other Marketable Securities [Member]
   
Activity for Marketable Securities Classified Within Level 3 of the Valuation Hierarchy [Roll Forward]    
Beginning balance of Level 3 27 18
Total realized and unrealized gains or losses [Abstract]    
Included in investment income, net 0  
Included in other comprehensive income 0 0
Purchases 35  
Settlements (5) (1)
Ending balance of Level 3 $ 57 $ 17