Notes Payable and Long-Term Debt - Schedule of Notes Payable and Long-Term Debt (Details) - USD ($)	Feb. 23, 2024	Aug. 31, 2024	Aug. 31, 2023	Apr. 30, 2023	Apr. 13, 2023	Apr. 30, 2022	Jul. 01, 2020
Debt Instrument [Line Items]
Total		$ 2,880,000,000	$ 2,875,000,000
Less current installments of notes payable and long-term debt		0	0
Notes payable and long-term debt, less current installments		$ 2,880,000,000	2,875,000,000
Senior Notes | 3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.95%
Total		$ 498,000,000	497,000,000
Senior Notes | 3.600% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.60%
Total		$ 497,000,000	496,000,000
Senior Notes | 3.000% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.00%					3.00%
Total		$ 594,000,000	593,000,000
Senior Notes | 1.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		1.70%
Total		$ 499,000,000	498,000,000
Senior Notes | 4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.25%				4.25%
Total		$ 496,000,000	495,000,000
Senior Notes | 5.450% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.45%		5.45%	5.45%
Total		$ 296,000,000	296,000,000
Debt issued					$ 300,000,000
Senior Notes | Senior Notes Due July 2023
Debt Instrument [Line Items]
Stated interest rate (as a percent)					4.90%
Debt issued					$ 300,000,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total		0	0
Unused borrowing capacity		4,000,000,000.0
Line of Credit | Revolving Credit Facility | Credit Facility Due January 2026
Debt Instrument [Line Items]
Credit agreement term	3 years
Line of Credit | Revolving Credit Facility | Credit Facility Due January 2028
Debt Instrument [Line Items]
Credit agreement term	5 years
Line of Credit | Revolving Credit Facility | Credit Facility
Debt Instrument [Line Items]
Credit agreement term	1 year
Line of Credit | Term Loan Facility
Debt Instrument [Line Items]
Total		0	$ 0
Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 3,200,000,000