Derivative Financial Instruments and Hedging Activities (Details 1) - USD ($) $ in Millions	Jan. 31, 2025	Apr. 30, 2024
Fair values of derivative instruments
Derivative Asset, Fair Value, Gross Asset	$ 18	$ 12
Derivative Liability, Fair Value, Gross Liability	1	4
Currency derivatives [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Other Current Assets [Member]
Fair values of derivative instruments
Derivative Asset, Fair Value, Gross Asset	15	11
Derivative Liability, Fair Value, Gross Liability	(1)	(2)
Currency derivatives [Member] \| Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Other Assets [Member]
Fair values of derivative instruments
Derivative Asset, Fair Value, Gross Asset	3	1
Derivative Liability, Fair Value, Gross Liability	0	(1)
Currency derivatives [Member] \| Not designated as hedges [Member] \| Accrued Expenses [Member]
Fair values of derivative instruments
Derivative Asset, Fair Value, Gross Asset	0	0
Derivative Liability, Fair Value, Gross Liability	$ 0	$ (1)

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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