Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details) (Narrative)

v2.4.0.6
Financial Instruments (Details) (Narrative) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 30, 2013
Money Market Funds
Dec. 29, 2012
Money Market Funds
Mar. 30, 2013
Mutual Funds
Dec. 29, 2012
Mutual Funds
Financial Instruments [Line Items]          
Available-for-sale investments used as collateral   $ 10 $ 10    
Restricted Investments       13 14
Realized gain (loss) on available-for-sale securities 0        
Sales of available-for-sale securities 14        
Auction rate securities, carrying value 15        
Auction rate securities, par value $ 22