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BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Net Derivative Gains (Losses) from Economic Hedges of Forecasted Commodity Consumption and Foreign Currency Risk (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 26, 2017 | Feb. 28, 2016 | Feb. 26, 2017 | Feb. 28, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred |  |  | $ 2.3 |
Commodity contracts |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | $ 0.3 | $ (3.3) | 3.0 | $ (13.1)
Commodity contracts | Reporting segments |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | (0.2) | (5.1) | 2.6 | (15.1)
Commodity contracts | Reporting segments | Net derivative gains (losses) allocated to Grocery & Snacks |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | 0.1 | (3.1) | 2.0 | (8.8)
Commodity contracts | Reporting segments | Net derivative losses allocated to Refrigerated & Frozen |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | (0.8) | (1.3) | (0.3) | (3.9)
Commodity contracts | Reporting segments | Net derivative gains (losses) allocated to International |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | 0.6 | (0.3) | 0.9 | (0.2)
Commodity contracts | Reporting segments | Net derivative gains (losses) allocated to Foodservice |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | (0.1) | 0.1 | 0.1 | (0.7)
Commodity contracts | Reporting segments | Net derivative losses allocated to Commercial |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | 0.0 | (0.5) | (0.1) | (1.5)
Commodity contracts | Net derivative gains recognized in general corporate expenses |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net derivative gains (losses) incurred | $ 0.5 | $ 1.8 | $ 0.4 | $ 2.0

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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