Fair Value Measurements (Details Textual) (USD $)	12 Months Ended
	May 30, 2010	May 27, 2012	May 29, 2011
Fair value measurements (Textual) [Abstract]
Carrying value of assets impaired	$ 45,500,000
Fair value of assets impaired	29,000,000
Fair Value Measurements (Additional Textual) [Abstract]
Impairment charge related to Associated Property, plant and equipment	16,500,000
Carrying amount of long-term debt		2,900,000,000	3,200,000,000
Long-term debt at fair value		3,500,000,000	3,600,000,000
Consumer Food [Member]
Fair value measurements (Textual) [Abstract]
Carrying value of assets impaired	39,300,000
Fair value of assets impaired	6,000,000
Impairment charge on partially completed Production facility included in selling, general and administrative expenses	33,300,000
Gilroy Foods & Flavors [Member]
Fair value measurements (Textual) [Abstract]
Impairment charge on partially completed Production facility included in selling, general and administrative expenses	58,300,000
Carrying amount of noncurrent assets held for sale from discontinued business	88,700,000
Fair value of noncurrent assets held for sale from discontinued business	30,400,000
Recognized impairment and related charges, after-tax	$ 39,300,000