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Debt (Schedule Of Equity And Liability Components Of Senior Notes) (Details) (USD $)
In Millions, unless otherwise specified
Mar. 29, 2013
Mar. 30, 2012
Debt [Abstract]    
Principal amount $ 1,000 $ 1,000
Equity component 313 313
Liability component 997 941
Unamortized discount $ 3 $ 59