Fair Value Measurements (Details) - USD ($) $ in Millions	Jan. 31, 2023	Apr. 30, 2022	Jan. 31, 2022
Assets:
Cash and cash equivalents at end of period	$ 428	$ 868	$ 812
Cash and cash equivalents, Fair Value	428	868
Liabilities:
Short-term borrowings, Carrying Amount	1,004	0
Short-term borrowings, Fair Value	1,004	0
Long-term debt (including current portion), Carrying Amount	2,024	2,269
Fair Value, Inputs, Level 2 [Member]
Assets:
Currency derivatives, net, Fair Value	18	48
Liabilities:
Currency derivatives, net, Fair Value	1	1
Long-term debt (including current portion), Fair Value	1,915	2,239
Foreign Exchange Contract [Member]
Assets:
Currency derivatives, net, Carrying Amount	18	48
Liabilities:
Currency derivatives, net, Carrying Amount	$ 1	$ 1

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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