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Notes Payable and Long-Term Debt - Additional Information (Details) - USD ($) $ in Millions	Aug. 31, 2024	Apr. 30, 2023	Apr. 13, 2023	Apr. 30, 2022	Jul. 01, 2020
Debt Instrument [Line Items]
Letters of credit and surety bonds	$ 58
Unused letters of credit	$ 60
Senior Notes \| 3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.95%
Senior Notes \| 3.600% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.60%
Senior Notes \| 3.000% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.00%				3.00%
Senior Notes \| 1.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	1.70%
Senior Notes \| 4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.25%			4.25%
Senior Notes \| 5.450% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	5.45%	5.45%	5.45%