CONTINGENCIES (Details)			3 Months Ended	9 Months Ended
	Mar. 25, 2016 USD ($)	Jan. 27, 2014 USD ($) defendant	Feb. 25, 2018 USD ($) property building	Feb. 25, 2018 USD ($) property site period
Guarantor Obligations [Line Items]
Period during which Beatrice has paid or is in the process of paying its liability share				5 years
Number of properties purchased subject to lease put options | building			2
Loss for early termination of lease			$ 48,200,000
Loss on lease put option for one building
Guarantor Obligations [Line Items]
Estimate of possible loss			$ 8,200,000	$ 8,200,000
Number of properties under lease agreements, put option price exceeds estimated fair value | property			1	1
Accrued put cost			$ 1,100,000	$ 1,100,000
Judicial ruling
Guarantor Obligations [Line Items]
Damages awarded to plaintiff	$ 108,900,000
Beatrice
Guarantor Obligations [Line Items]
Number of sites under environmental matters for which acquired company has a liability | site				40
Number of sites under environmental matters for which acquired company is making payments | site				31
Accrual for environmental matters			52,200,000	$ 52,200,000
Beatrice | California
Guarantor Obligations [Line Items]
Number of other defendants | defendant		2
Estimate of possible loss		$ 1,150,000,000
Warehouse services agreement
Guarantor Obligations [Line Items]
Minimum monthly payment required under warehouse services agreement				1,500,000.0
Liability for estimated fair value of guarantee			28,500,000	28,500,000
Performance and payment guarantee for Lamb Weston
Guarantor Obligations [Line Items]
Guarantee under sublease agreement (maximum)			$ 75,000,000.0	$ 75,000,000.0
Lamb Weston
Guarantor Obligations [Line Items]
Number of optional extension periods | period				2
Period of optional extensions				5 years