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Summary Of Significant Accounting Policies (Restricted Stock And Options To Purchase Shares Of Common Stock Excluded From Calculation Of Diluted Earnings Per Share) (Details)
In Millions, unless otherwise specified
12 Months Ended
May 27, 2012
May 29, 2011
May 30, 2010
Accounting Policies [Abstract]      
Anti-dilutive restricted stock and options (shares) 2.6 1.2 3.3