Notes Payable and Long-Term Debt - Schedule of Notes Payable and Long-term Debt (Details) - USD ($)	Feb. 10, 2023	May 31, 2023	Apr. 30, 2023	Apr. 13, 2023	Aug. 31, 2022
Debt Instrument [Line Items]
Total notes payable and long-term debt		$ 3,174,000,000			$ 2,875,000,000
Less current installments of notes payable and long-term debt		300,000,000			300,000,000
Notes payable and long-term debt, less current installments		$ 2,874,000,000			2,575,000,000
Senior Notes | 4.900% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		4.90%		4.90%
Total notes payable and long-term debt		$ 300,000,000			300,000,000
Debt issued				$ 300,000,000
Senior Notes | 3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		3.95%
Total notes payable and long-term debt		$ 497,000,000			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		$ 496,000,000			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			592,000,000
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			497,000,000
Senior Notes | 4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		4.25%
Total notes payable and long-term debt		$ 495,000,000			493,000,000
Senior Notes | 5.450% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		5.45%	5.45%	5.45%
Total notes payable and long-term debt		$ 295,000,000			0
Debt issued				$ 300,000,000
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 | Three-Year Revolving Credit Facility
Debt Instrument [Line Items]
Debt term	3 years
Line of Credit | Revolving Credit Facility | Five-Year Revolving Credit Facility
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