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CONTINGENCIES (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 25, 2016 USD ($) | Jan. 27, 2014 USD ($) defendant | May 27, 2018 USD ($) | Feb. 25, 2018 USD ($) | May 27, 2018 USD ($) site period | May 28, 2017 USD ($) | May 29, 2016 USD ($)
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Accrual for Beatrice-related environmental matters |  |  | $ 56,000,000 |  | $ 56,000,000 | $ 54,700,000 |
Selling, general and administrative expenses |  |  |  |  | 1,318,000,000 | 1,417,100,000 | $ 2,024,600,000
Loss recognized for early exit of lease contracts |  |  |  | $ 48,200,000 |  |  |
Significant litigation accruals |  |  | 151,000,000 |  | 151,000,000 | 0 | 0
Loss on lease put option |  |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Estimated possible loss |  |  |  | $ 8,200,000 |  |  |
Accrued put cost |  |  | 1,200,000 |  | $ 1,200,000 |  |
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 |  |  |  |  | 40 |  |
Number of sites where Beatrice has paid or is paying its liability share | site |  |  |  |  | 31 |  |
Accrual for Beatrice-related environmental matters |  |  | 52,400,000 |  | $ 52,400,000 |  |
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 |  |  | 28,100,000 |  | 28,100,000 |  |
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 |  | 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] |  |  |  |  |  |  |
Selling, general and administrative expenses |  |  |  |  |  | $ (6,700,000) |
Minimum | California | Beatrice |  |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Estimated possible loss |  |  | 60,000,000 |  | 60,000,000 |  |
Maximum | California | Beatrice |  |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Estimated possible loss |  |  | $ 335,000,000 |  | 335,000,000 |  |
SCAE Plan |  |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Aggregate charges for early termination of leases |  |  |  |  | $ 31,500,000 |  |
Financing lease obligation |  |  |  |  |  |  | 74,200,000
Early termination of leases | SCAE Plan |  |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |  |
Aggregate charges for early termination of leases |  |  |  |  |  |  | $ 55,600,000

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