Payment-in-Kind Notes Receivable (Details) (USD $)	12 Months Ended
	May 30, 2010	May 31, 2009 Trading and merchandising operations [Member]	May 31, 2009 Notes due June 2010 [Member]	May 31, 2009 Notes due June 2011 [Member]	May 31, 2009 Notes due June 2012 [Member]
Payment-in-Kind Notes Receivable (Textual) [Abstract]
Face amount of debt securities received in proceeds from divestiture of businesses		$ 550,000,000
Payment-in-kind debt securities issued by the purchaser, initial estimated fair value		479,400,000
Notes issued, principal amount			99,990,000	200,035,000	249,975,000
Notes issued, coupon rate			10.50%	10.75%	11.00%
Payment-in-Kind Notes Receivable (Additional Textual) [Abstract]
Carrying amount of debt securities received for first tranche	115,400,000
Carrying amount of debt securities received for second and third tranches	554,200,000
Gain due to receipt of payment in advance	$ 25,000,000