LONG-TERM DEBT AND REVOLVING CREDIT FACILITY - Schedule of Net Interest Expense (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Feb. 27, 2022	Feb. 28, 2021	Feb. 27, 2022	Feb. 28, 2021
Debt Disclosure [Abstract]
Long-term debt	$ 97.9	$ 102.7	$ 292.5	$ 329.9
Short-term debt	0.6	1.0	1.7	1.5
Interest income	(0.5)	(0.4)	(1.1)	(1.6)
Interest capitalized	(3.4)	(2.7)	(9.4)	(7.8)
Net interest expense	$ 94.6	$ 100.6	$ 283.7	$ 322.0

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Amount of interest costs capitalized disclosed as an adjusting item to interest costs incurred.

+ References

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Aggregate amount of interest paid or due on all long-term debt.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.8)
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

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The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 220
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-Name Regulation S-K (SK)
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-Section 1402
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The net amount of operating interest income (expense).

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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