Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Narrative) (Details)

v2.3.0.15
Financial Instruments (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended
Oct. 01, 2011
Sep. 25, 2010
Dec. 25, 2010
Oct. 01, 2011
Maximum [Member]
Oct. 01, 2011
Minimum [Member]
Oct. 01, 2011
Auction Rate Securities [Member]
Oct. 01, 2011
Auction Rate Securities [Member]
Oct. 01, 2011
Non-UBS Student Loan ARS [Member]
Schedule of Available-for-sale Securities [Line Items]                
Available-for-sale securities pledged as collateral $ 10   $ 29          
Auction market, par value           52 52  
Net carrying amount, current           45 45 7
Proceeds from sale of available-for-sale securities 21             8
Realized gain on available-for-sale securities 3 8       1    
Available-for-sale marketable debt securities maturity, years 1           2  
Maturity of Auction Rate Securities, minimum             January 2030  
Maturity of Auction Rate Securities, maximum             December 2050  
Long-term marketable securities maturities range in years       2 1      
Fair Value $ 50