Commitments And Contingencies (Details) (USD $)	3 Months Ended
	Aug. 25, 2013	Aug. 25, 2013 Workers Compensation and General Liabilities Accrued	May 26, 2013 Workers Compensation and General Liabilities Accrued	Aug. 25, 2013 Operating Lease Obligation	May 26, 2013 Operating Lease Obligation	Aug. 25, 2013 Property Lease Guarantee	May 26, 2013 Property Lease Guarantee
Commitment and Contigencies [Line Items]
Standby letters of credit		$ 113,500,000	$ 107,000,000	$ 20,000,000	$ 20,600,000
Guarantees associated with leased properties						3,900,000	4,200,000
Fair value of potential payments discounted at pre-tax cost of capital related to guarantee obligations						3,200,000	3,400,000
Accrued liabilities resulting from reassessment of likelihood of third parties defaulting on assignment agreements	$ 0