Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 22, 2015	Feb. 23, 2014	Feb. 22, 2015	Feb. 23, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	12.70%	2.80%	(60.50%)	4.20%
Effective income tax rate, excluding debt extinguishment costs and debt extinguishment tax benefit (as a percent)				19.50%
Tax position, change is reasonably possible in the next twelve months	$ 30.0		$ 30.0