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Fair Value Measurements - Schedule of Carrying Amounts and Fair Values of Notes Payable and Long-term Debt (Details) - USD ($) $ in Millions	Aug. 31, 2024	Aug. 31, 2023	Apr. 30, 2023	Apr. 13, 2023	Apr. 30, 2022	Jul. 01, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 2,880	$ 2,875
Senior Notes \| 3.950% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	3.95%
Carrying Amount	$ 498	497
Senior Notes \| 3.950% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	498	497
Senior Notes \| 3.950% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 487	468
Senior Notes \| 3.600% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	3.60%
Carrying Amount	$ 497	496
Senior Notes \| 3.600% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	497	496
Senior Notes \| 3.600% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 468	448
Senior Notes \| 3.000% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	3.00%					3.00%
Carrying Amount	$ 594	593
Senior Notes \| 3.000% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	594	593
Senior Notes \| 3.000% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 529	502
Senior Notes \| 1.700% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	1.70%
Carrying Amount	$ 499	498
Senior Notes \| 1.700% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	499	498
Senior Notes \| 1.700% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 476	452
Senior Notes \| 4.250% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	4.25%				4.25%
Carrying Amount	$ 496	495
Senior Notes \| 4.250% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	496	495
Senior Notes \| 4.250% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 495	478
Senior Notes \| 5.450% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate (as a percent)	5.45%		5.45%	5.45%
Carrying Amount	$ 296	296
Senior Notes \| 5.450% Senior Notes \| Level 2 \| Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	296	296
Senior Notes \| 5.450% Senior Notes \| Level 2 \| Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 306	$ 297