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Leases - Supplemental Cash Flow Information Related to Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows used in operating leases $ 488 $ 495
Non-cash transactions:    
Lease assets obtained in exchange for new lease liabilities 348 428
Rent concessions due to COVID-19 69 155
COVID-19    
Non-cash transactions:    
Rent concessions due to COVID-19 $ 52 $ 0