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INCOME TAXES (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Aug. 30, 2020 | Aug. 25, 2019 | May 31, 2020
Income Tax Contingency [Line Items] |  |  |
Income tax expense (benefit) | $ 86.7 | $ (11.5) |
Effective tax rate | 20.80% | (7.00%) |
Gross unrecognized tax benefits for uncertain tax positions | $ 34.4 |  | $ 35.8
Tax positions for which ultimate deductibility is highly certain but timing of such deductibility is uncertain | 0.8 |  | 0.7
Related liabilities for gross interest and penalties | 8.1 |  | 7.4
Net amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate | 29.1 |  | 30.3
Gross unrecognized tax benefits, estimated decrease over the next twelve months (up to) | 13.5 |  |
Deferred tax asset | 685.3 |  | 685.2
Corresponding valuation allowances | 685.3 |  | 685.2
Discontinued operations |  |  |
Income Tax Contingency [Line Items] |  |  |
Net amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate | $ 6.5 |  | $ 6.5

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