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Stock-Based Compensation (Schedule Of Stock-Based Compensation Arrangements By Stock-Based Payment Award) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended
Jun. 28, 2013
Jun. 29, 2012
Restricted Stock Units (RSUs) [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average fair value per grant $ 23.86 $ 14.95
Fair value of awards granted $ 45 $ 134
Total fair value of awards vested 74 26
Total unrecognized compensation expense 224 292
Weighted-average remaining vesting period (in years) 3 years 3 years
Performance Based Restricted Stock [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average fair value per grant $ 19.04 $ 16.60
Fair value of awards granted 33 21
Total fair value of awards vested 11  
Total unrecognized compensation expense 40 28
Weighted-average remaining vesting period (in years) 2 years 2 years
Stock Options [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average fair value per grant   $ 4.07
Total intrinsic value of stock options exercised 21 2
Total unrecognized compensation expense $ 11 $ 26
Weighted-average remaining vesting period (in years) 2 years 2 years