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Summary of Significant Accounting Policies - Activity and Balances of Sales Reserves (Details) - USD ($)
$ in Millions
 12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Amounts Charged to Revenue $ 29 $ 4 $ 8
Retail      
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Balance Beginning of Year 15 12 7
Amounts Charged to Revenue 231 226 161
Write-offs Against Reserves (234) (223) (156)
Balance at Year End 12 15 12
Wholesale      
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Balance Beginning of Year 112 109 97
Amounts Charged to Revenue 266 262 258
Write-offs Against Reserves (224) (259) (246)
Balance at Year End $ 154 $ 112 $ 109