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Supplementary Information (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 29, 2019
Mar. 30, 2018
Mar. 31, 2017
Supplementary Information [Abstract]      
Depreciation and amortization $ 172 $ 187 $ 199
Finite-Lived Intangible Assets [Line Items]      
Proceeds from sale of assets $ 26