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Fair Value Measurements (Details 1) - USD ($)
$ in Millions
Dec. 26, 2015
Mar. 28, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Commercial Paper, Carrying Value $ 15 $ 234
2.125% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Carrying Value 298 298
2.625% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Carrying Value 298 0
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Commercial Paper, Fair Value 15 234
Fair Value, Inputs, Level 2 [Member] | 2.125% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Fair Value 303 304
Fair Value, Inputs, Level 2 [Member] | 2.625% Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Senior Notes, Fair Value $ 303 $ 0