Hedging Transactions And Derivative Financial Instruments (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 9 Months Ended
Sep. 29, 2012
Dec. 31, 2011
Hedging Transactions And Derivative Financial Instruments [Line Items]    
Notional value of outstanding foreign currency forward contracts $ 143 $ 141
Research and development
 
 
September 29,
2012
 
December 31,
2011
 
 
(In millions)
Foreign Currency Forward Contracts
 
 
 
 
Contracts designated as cash flow hedging instruments
 
$
2

 
$
(2
)
Contracts not designated as hedging instruments
 
$
1

 
$
—

  
Derivative, Fair Value, Net $ 3