Derivative Financial Instruments (Details 4) - USD ($) $ in Millions	Jul. 31, 2020	Apr. 30, 2020
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gross notional amount	$ 679.5	$ 890.1
Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gross notional amount	$ 74.3	$ 65.6

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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