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Financial Instruments (Details 1) - USD ($)
$ in Millions
Dec. 26, 2015
Mar. 28, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative asset, gross amount in the balance sheet $ 45 $ 87
Gross amount of derivatives assets subject to master netting arrangements not offset (11) (14)
Derivative asset, net basis 34 73
Derivative liability, gross amount in the balance sheet 19 19
Gross amount of derivative liabilities subject to master netting arrangements not offset (11) (14)
Derivative liability, net basis $ 8 $ 5