PENSION AND POSTRETIREMENT BENEFITS (Weighted-Average Actuarial Assumptions) (Details)	12 Months Ended
	May 26, 2013	May 27, 2012	May 29, 2011
Pension Benefits
Weighted Average Actuarial Assumption Used to Determine Net Expense
Discount rate	4.50%	5.30%	5.80%
Long-term rate of return on plan assets	7.75%	7.75%	7.75%
Long-term rate of compensation increase	4.25%	4.25%	4.25%
Other Benefits
Weighted Average Actuarial Assumption Used to Determine Net Expense
Discount rate	3.90%	4.30%	5.40%
Long-term rate of return on plan assets			3.50%