Notes Payable and Long-Term Debt - Schedule of Notes Payable and Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 18, 2025	Aug. 31, 2025	Aug. 31, 2024	Apr. 30, 2023	Apr. 30, 2022	Jan. 22, 2020
Debt Instrument [Line Items]
Total		$ 2,885	$ 2,880
Less current installments of notes payable and long-term debt		499	0
Notes payable and long-term debt, less current installments		$ 2,386	2,880
Senior Notes | 3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.95%
Total		$ 499	498
Senior Notes | 3.600% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.60%
Total		$ 498	497
Senior Notes | 3.000% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		3.00%
Total		$ 595	594
Senior Notes | 1.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		1.70%
Total		$ 499	499
Senior Notes | 4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		4.25%			4.25%
Total		$ 497	496
Senior Notes | 5.450% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)		5.45%		5.45%
Total		$ 297	296
Line of Credit | Existing Credit Facility 2020
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 3,200
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total		0	$ 0
Unused borrowing capacity		4,000
Line of Credit | Revolving Credit Facility | Federal Funds Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Line of Credit | Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Line of Credit | Revolving Credit Facility | Minimum | Benchmark Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.90%
Line of Credit | Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.45%
Line of Credit | Revolving Credit Facility | Maximum | Benchmark Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.45%
Line of Credit | Revolving Credit Facility | Revolving Credit Facility 2025
Debt Instrument [Line Items]
Debt instrument, term	5 years
Maximum borrowing capacity	$ 3,200
Potential extension amount	$ 1,000
Debt instrument, extension term	1 year
Debt instrument, tenor, maximum	5 years
Line of Credit | Revolving Credit Facility | The Revolving Credit Facility
Debt Instrument [Line Items]
Unused borrowing capacity		3,200
Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 3,200