Derivative Financial Instruments and Hedging Activities - Schedule of Derivative Financials Designated as Cash Flow Hedging Instruments (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 13.0	$ (9.9)	$ 11.4	$ (21.2)
Gain (Loss) Reclassified from AOCI into Net Earnings	(0.8)	(8.7)	7.2	(7.1)
Commodity Contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	13.0	(9.9)	11.4	(21.2)
Gain (Loss) Reclassified from AOCI into Net Earnings	$ (0.8)	$ (8.7)	$ 7.2	$ (7.1)

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, before adjustments, of tax expense (benefit) for gain (loss) from increase (decrease) in value of excluded component of derivative designated and qualifying as hedge. Adjustments include, but are not limited to, reclassifications for sale and settlement, and amounts recognized under systematic and rational method.

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