Summary Of Significant Accounting Policies (Restricted Stock And Options To Purchase Shares Of Common Stock Excluded From Calculation Of Diluted Earnings Per Share) (Details) - shares shares in Millions	12 Months Ended
	May 27, 2018	May 28, 2017	May 29, 2016
Accounting Policies [Abstract]
Anti-dilutive restricted stock and options (shares)	0.3	0.4	0.3