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CONTINGENCIES (Details) |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jul. 10, 2019 USD ($) installment | Jan. 27, 2014 USD ($) defendant | May 26, 2019 USD ($) site period | May 27, 2018 USD ($) building | May 28, 2017 USD ($) lease | Sep. 04, 2018 USD ($)
Guarantor Obligations [Line Items] |  |  |  |  |  |
Number buildings purchased in period | building |  |  |  | 2 |  |
Aggregate charges for early termination of leases |  |  |  | $ 48,200,000 |  |
Number of expired lease agreements | lease |  |  |  |  | 1 |
Financing lease obligation |  |  |  |  | $ 6,700,000 |
Loss on lease put option |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Estimated possible loss |  |  | $ 8,200,000 | 8,200,000 |  |
Accrued put cost |  |  | $ 1,600,000 | $ 1,200,000 |  |
Lamb Weston |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Number of extension periods | period |  |  | 2 |  |  |
Term of optional extension periods |  |  | 5 years |  |  |
Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Number of sites where Beatrice is a potentially responsible party | site |  |  | 40 |  |  |
Accrual for Beatrice-related environmental matters |  |  | $ 52,800,000 |  |  |
Performance and payment of all amounts under sublease agreement |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Maximum amount guaranteed |  |  | $ 19,100,000 |  |  |
Remaining lease terms |  |  | 8 years |  |  |
Guarantee to make payments |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Maximum amount guaranteed |  |  | $ 1,200,000 |  |  |
Remaining lease terms |  |  | 4 years |  |  |
California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Number of other defendants | defendant |  | 2 |  |  |  |
Estimated possible loss |  | $ 1,150,000,000 |  |  |  |
Minimum | California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Estimated possible loss |  |  |  |  |  | $ 409,000,000
Other accrued liabilities | Minimum | California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Estimated possible loss |  |  | $ 25,300,000 |  |  |
Other noncurrent liabilities | Minimum | California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Estimated possible loss |  |  | 74,100,000 |  |  |
Lamb Weston | Performance and payment of all amounts under sublease agreement |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Maximum amount guaranteed |  |  | $ 75,000,000.0 |  |  |
Subsequent event | California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Total payments to be made under settlement | $ 101,700,000 |  |  |  |  |
Number of annual installments to be made | installment | 7 |  |  |  |  |
Subsequent event | Maximum | California | Beatrice |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Estimated possible loss | $ 15,000,000.0 |  |  |  |  |

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