Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 25, 2012	Nov. 27, 2011	Nov. 25, 2012	Nov. 27, 2011
Income Tax Disclosure [Abstract]
Effective income tax rate	21.80%	25.40%	23.60%	26.70%
Tax position, change is reasonably possible in the next twelve months	$ 1.3		$ 1.3