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DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Aug. 25, 2019 | Nov. 25, 2018 | Aug. 26, 2018 | May 26, 2019 | May 27, 2018
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 | $ (1.6) |  | $ (57.9) |  |
Deferred gain in AOCI upon settlement of contracts | 7,516.8 |  | $ 3,815.0 | $ 7,463.7 | $ 3,756.6
Setoff amounts applied against total derivative assets | 1.4 |  |  | 0.5 |
Setoff amounts applied against total derivative liabilities | 2.5 |  |  | 0.4 |
Level 2 |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Maximum amount of loss due to credit risk of counterparties | 0.7 |  |  |  |
Prepaid expenses and other current assets |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Amounts representing a right to reclaim cash collateral | 1.4 |  |  |  |
Amounts representing an obligation to return cash collateral |  |  |  | 0.1 |
Cash flow hedge, Pinnacle |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Gain recognized in other comprehensive income |  | $ 47.5 |  |  |
Commodity contracts | Purchase contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 62.7 |  |  | 140.1 |
Commodity contracts | Sales contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 14.8 |  |  | 18.5 |
Foreign exchange contracts |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Notional value of contracts | 99.8 |  |  | 88.2 |
Accumulated Gain (Loss), Net, Cash Flow Hedge |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Deferred gain in AOCI upon settlement of contracts | 32.2 |  |  | $ 34.0 |
Accumulated Gain (Loss), Net, Cash Flow Hedge | Cash flow hedge, Pinnacle |  |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |  |
Deferred gain in AOCI upon settlement of contracts | $ 44.6 |  |  |  |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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