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Inventories (Policies)	3 Months Ended
Inventories (Policies)	Jul. 31, 2023
Inventory Disclosure [Abstract]
Inventory, Policy [Policy Text Block]	We value some of our consolidated inventories, including most of our U.S. inventories, at the lower of cost, using the last-in, first-out (LIFO) method or market value.

Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.

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