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Income Taxes (Reconciliation Between Federal Statutory Tax Rate And Effective Tax Rate Reflected In Accompanying Financial Statements) (Details)
12 Months Ended
Mar. 27, 2021
Mar. 28, 2020
Mar. 30, 2019
Reconciliation between Federal statutory tax rate and effective tax rate reflected in accompanying financial statements      
Expected U.S. federal income taxes at statutory rate, percentage 21.00% 21.00% 21.00%
State income taxes, net of federal income tax benefit, percentage 2.90% 1.90% 2.80%
Tax settlements and adjustments, percentage [1] (1.10%)   (1.90%)
Other, percentage (0.50%) (1.00%) (1.40%)
Effective tax rate, percentage 22.30% 21.90% 20.50%
[1] For 2021, adjustments reflect benefit due to differences in statutory tax rates from loss years to years in which net operating losses may be carried back. For 2019, settlements reflect benefit from Internal Revenue Service’s examination of our 2016 and 2017 tax returns.