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Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) | 12 Months Ended
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May 25, 2019 | May 26, 2018 | May 27, 2017
Income Taxes [Abstract] |  |  |
Statutory tax rate | 21.00% | 29.40% | 35.00%
State taxes, net of federal benefit | 4.90% | 7.90% | 5.00%
Non-U.S. rate adjustments | 1.30% | (0.80%) | 0.10%
Stock-based compensation | 2.80% | 4.50% | 0.70%
Long-term net capital gains | (6.10%) | 10.10% |
Foreign tax credit | 9.30% | (16.50%) | (0.10%)
Valuation allowance | (2.80%) | (4.30%) | 1.20%
Global Intangible Low-Taxed Income ("GILTI") | 1.10% |  |
Permanent items, primarily meals and entertainment | 1.40% | 3.20% | 2.20%
Deferred tax impact of U.S. federal rate changes | 0.10% | (2.80%) |
Deferred tax impact of foreign rate changes | 1.20% | 3.90% | 0.50%
Other, net | 0.20% | 0.20% | 0.20%
Effective tax rate | 34.40% | 34.80% | 44.80%

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