CONTINGENCIES (Details)			12 Months Ended
	Mar. 25, 2016 USD ($)	Jan. 27, 2014 USD ($) defendant	May 28, 2017 USD ($) lease_agreement site period	May 29, 2016 USD ($)	May 31, 2015 USD ($)
Guarantor Obligations [Line Items]
Accrual for Beatrice-related environmental matters			$ 54,700,000	$ 47,000,000
Lease put options, exercisable period after end of lease agreements			30 days
Accrued put cost			$ 0	105,900,000
Number of lease agreements expired | lease_agreement			1
Benefit recognized as a result of lease agreement expiration			$ (1,417,100,000)	$ (2,024,600,000)	$ (1,383,400,000)
Loss on lease put option
Guarantor Obligations [Line Items]
Estimated possible loss			51,800,000
Accrued put cost			$ 8,400,000
Lamb Weston
Guarantor Obligations [Line Items]
Number of extension periods | period			2
Term of optional extension periods			5 years
Judicial ruling
Guarantor Obligations [Line Items]
Amount of verdict in favor of Jacobs	$ 108,900,000
Beatrice
Guarantor Obligations [Line Items]
Number of sites where Beatrice is a potentially responsible party | site			37
Number of sites where Beatrice has paid or is paying its liability share | site			33
Accrual for Beatrice-related environmental matters			$ 52,300,000
Guarantee to make payments to warehouse provider
Guarantor Obligations [Line Items]
Minimum monthly payments required under agreement			1,500,000
Warehouse services agreement guarantee recorded in other noncurrent liabilities			29,700,000
Performance and payment of all amounts under sublease agreement
Guarantor Obligations [Line Items]
Maximum amount guaranteed for Lamb Weston's performance and payment			75,000,000.0
California | Beatrice
Guarantor Obligations [Line Items]
Number of other defendants | defendant		2
Estimated possible loss		$ 1,150,000,000
Restatement Adjustment
Guarantor Obligations [Line Items]
Benefit recognized as a result of lease agreement expiration			$ 6,700,000