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Derivative Financial Instruments and Hedging Activities (Textual) (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021	Mar. 23, 2023
Derivative Instruments and Hedging Activities [Line Items]
Maximum Remaining Maturity of Foreign Currency Derivatives	24 months	36 months
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	$ 6
Derivative, Net Liability Position, Aggregate Fair Value	1	$ 0
Foreign Exchange Contract [Member]
Derivative Instruments and Hedging Activities [Line Items]
Derivative, Notional Amount	747	801
Net gain (loss) recognized in AOCI	4	76	$ (78)
Interest Rate Contract
Derivative Instruments and Hedging Activities [Line Items]
Derivative, Notional Amount				$ 350
Net gain (loss) recognized in AOCI	(1)	0	$ 0
Designated as Hedging Instrument [Member] \| Net Investment Hedging [Member]
Derivative Instruments and Hedging Activities [Line Items]
Debt Instrument, Face Amount	495	636
4.75% senior notes, due April 15, 2033 {Member}
Derivative Instruments and Hedging Activities [Line Items]
Debt Instrument, Face Amount	$ 650	$ 650		$ 650
Debt Instrument, Interest Rate, Stated Percentage	4.75%	4.75%		4.75%