Pension And Postretirement Benefits (Details Textuals) (USD $)	12 Months Ended
	May 29, 2011	May 30, 2010	May 31, 2009
Pension And Postretirement Benefits (Textual) [Abstract]
Commitment for the additional investment.	$ 37,000,000
Expenses related to the defined contribution plans	21,200,000	22,800,000	23,200,000
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	2,800,000,000	2,500,000,000
Contribution to pension plan and other postretirement plan	80,400,000
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plan and other postretirement plan	32,500,000
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value investments impose customary redemption gates	$ 407,800,000