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Equity (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended 1 Months Ended 12 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Mar. 31, 2012
Mar. 29, 2014
General repurchase program [Member]
Mar. 30, 2013
General repurchase program [Member]
Mar. 31, 2012
General repurchase program [Member]
Mar. 30, 2013
Prepaid Repurchase Program [Member]
Mar. 29, 2014
Prepaid Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]                
Cost of shares repurchased $ 558 $ 547 $ 419 $ 548 $ 450 $ 395 $ 50 $ (50)
Number of shares repurchased       3.2 3.0 3.2   0.3
Stock Repurchase Program, Period in Force               93 days