Derivative Financial Instruments (Details 3) - USD ($) $ in Millions	12 Months Ended
Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2024
Price Risk Derivatives [Abstract]
Net derivative gains (losses) recognized and classified as unallocated	$ (114.3)	$ 102.3	$ 27.6
Less: Net derivative gains (losses) reclassified to segment operating profit	(55.7)	44.1	20.9
Change in net cumulative unallocated derivative gains and losses	$ (58.6)	$ 58.2	$ 6.7

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 182
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480401/815-10-55-182

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4CC
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-21

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