Derivative Financial Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments
Total derivative gains (losses) recognized in costs of products sold	$ 60.8	$ 22.1	$ (166.3)	$ (7.7)
Commodity contracts
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments
Total derivative gains (losses) recognized in costs of products sold	59.8	20.6	(167.9)	(9.4)
Foreign currency exchange contracts
Gains and losses recognized in cost of products sold on derivatives not designated as qualified hedging instruments
Total derivative gains (losses) recognized in costs of products sold	$ 1.0	$ 1.5	$ 1.6	$ 1.7