Notes Payable and Long-Term Debt - Schedule of Notes Payable and Long-term Debt (Details) - USD ($)	Feb. 23, 2024	Feb. 29, 2024	Aug. 31, 2023
Debt Instrument [Line Items]
Total notes payable and long-term debt		$ 2,878,000,000	$ 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		$ 2,878,000,000	2,875,000,000
Senior Notes | 3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		3.95%
Total notes payable and long-term debt		$ 498,000,000	497,000,000
Senior Notes | 3.600% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		3.60%
Total notes payable and long-term debt		$ 497,000,000	496,000,000
Senior Notes | 3.000% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		3.00%
Total notes payable and long-term debt		$ 593,000,000	593,000,000
Senior Notes | 1.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		1.70%
Total notes payable and long-term debt		$ 498,000,000	498,000,000
Senior Notes | 4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		4.25%
Total notes payable and long-term debt		$ 496,000,000	495,000,000
Senior Notes | 5.450% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		5.45%
Total notes payable and long-term debt		$ 296,000,000	296,000,000
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total notes payable and long-term debt		0	0
Available unused borrowing capacity		3,900,000,000
Line of Credit | Revolving Credit Facility | Credit Facility Due
Debt Instrument [Line Items]
Debt term	1 year
Line of Credit | Revolving Credit Facility | Credit Facility Due January 2026
Debt Instrument [Line Items]
Debt term	3 years
Line of Credit | Revolving Credit Facility | Credit Facility Due January 2028
Debt Instrument [Line Items]
Debt term	5 years
Line of Credit | Term Loan Facility
Debt Instrument [Line Items]
Total notes payable and long-term debt		0	$ 0
Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 3,200,000,000