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Intangible Assets And Goodwill (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Apr. 02, 2011
Intangible Assets And Goodwill    
Intangibles amortization $ 6 $ 50
Finite-Lived Intangible Assets, Future Amortization Expense    
2012 25  
2013 10  
2014 8  
2015 3  
2016 $ 2