Additional Contingencies Textuals Abstract.

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Amount of supplier loans effectively guaranteed.

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Environmental loss contingencies, number of sites under environmental matters for which acquired company has liability.

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Environmental loss contingencies, number of sites under environmental matters for which acquired company is making payments.

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Maximum period expected for disbursements on environmental matters.

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Reduction in pre tax expense due to favorable regulatory developments.

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Term of loan under certain agreement, years.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

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-Publisher AICPA
-Name Statement of Position (SOP)
-Number 96-1
-Paragraph 161
-Subparagraph a
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Paragraph 13
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Contingencies (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended	12 Months Ended		12 Months Ended
	May 29, 2011	May 30, 2010	Feb. 27, 2010 Beatrice [Member]	May 29, 2011 Beatrice [Member]	May 29, 2011 Leases and other commercial obligations guarantee [Member]	May 29, 2011 Potato supply agreement guarantee [Member]	May 29, 2011 Onion supply agreement guarantee [Member]
Additional Contingencies (Textuals) [Abstract]
Number of sites under environmental matters for which acquired company has a liability				37
Number of sites under environmental matters for which acquired company is making payments				34
Reserves for Beatrice environmental matters	$ 70.2	$ 70.6		$ 68.5
Reduction in pre-tax expense due to favorable regulatory developments			15.4
Maximum period expected for disbursements on environmental matters				19 years
Guarantee obligation under purchase agreement					13.5		25.0
Amount of supplier loans effectively guaranteed						$ 34.4
Term of loan under certain agreement, years							14 years