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Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	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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