QUARTERLY FINANCIAL DATA (unaudited) - Tax Act (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
May 31, 2020	Feb. 23, 2020	Nov. 24, 2019	Aug. 25, 2019	May 26, 2019	May 27, 2018
QUARTERLY FINANCIAL DATA (unaudited)
Expense (benefit) from change in tax rate	$ (4.2)	$ 6.4
Net tax benefit for the re-measurement of U.S. deferred taxes						$ 39.9
Expense (benefit) from impact of remeasuring net US corporate tax rate	(2.8)	7.4	$ (15.4)	$ (14.0)	$ (27.2)	$ (64.7)
Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Deferred Tax Liability, Income Tax Benefit Relating To Transition Tax	$ 1.4	$ 1.0			$ 2.4

Effective Income Tax Reconciliation, Change in Enacted Tax Rate, Impact on Deferred Tax Assets and Liabilities, Amount

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Amount of income tax benefit for remeasurement of deferred tax liability relating to transition tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017.

+ References

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- Definition

Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act.

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