Inventories	9 Months Ended
Jan. 31, 2022
Inventory Disclosure [Abstract]
Inventories	InventoriesWe 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. If the LIFO method had not been used, inventories at current cost would have been $353 million higher than reported as of April 30, 2021, and $388 million higher than reported as of January 31, 2022. Changes in the LIFO valuation reserve for interim periods are based on an allocation of the projected change for the entire fiscal year, recognized proportionately over the remainder of the fiscal year.

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-URI http://asc.fasb.org/topic&trid=2126998

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