Annual report pursuant to Section 13 and 15(d)

Hedging Transactions And Derivative Financial Instruments (Narrative) (Details)

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Hedging Transactions And Derivative Financial Instruments (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 25, 2010
Hedging Transactions And Derivative Financial Instruments [Line Items]    
Net loss position on outstanding foreign currency contracts $ 2  
Foreign Currency Forward Contracts [Member]
   
Hedging Transactions And Derivative Financial Instruments [Line Items]    
Notional amount of foreign currency forward contracts $ 141 $ 302