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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Aug. 30, 2020 | Aug. 25, 2019 | Nov. 25, 2018 | May 31, 2020 | May 26, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Period to hedge portion of anticipated consumption of commodity inputs (up to) | 36 months |  |  |  |
Gain recognized in other comprehensive income | $ (600,000) | $ (1,600,000) |  |  |
Deferred gain in AOCI upon settlement of contracts | 8,199,000,000.0 | $ 7,516,800,000 |  | $ 7,950,700,000 | $ 7,463,700,000
Setoff amounts applied against total derivative assets | 700,000 |  |  | 400,000 |
Setoff amounts applied against total derivative liabilities | 100,000 |  |  | 1,500,000 |
Level 2 |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Maximum amount of loss due to credit risk of counterparties | 1,200,000 |  |  |  |
Prepaid expenses and other current assets |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Amounts representing a right to reclaim cash collateral |  |  |  | 1,100,000 |
Amounts representing an obligation to return cash collateral | 600,000 |  |  |  |
Cash flow hedge, Pinnacle |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Gain recognized in other comprehensive income |  |  | $ 47,500,000 |  |
Commodity contracts | Purchase contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 72,400,000 |  |  | 102,000,000.0 |
Commodity contracts | Sales contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 0 |  |  | 3,400,000 |
Foreign currency forward contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 112,900,000 |  |  | 107,600,000 |
Derivative adjustments, net of reclassification adjustments |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Deferred gain in AOCI upon settlement of contracts | 25,100,000 |  |  | $ 26,300,000 |
Derivative adjustments, net of reclassification adjustments | Cash flow hedge, Pinnacle |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Deferred gain in AOCI upon settlement of contracts | $ 41,100,000 |  |  |  |

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