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Fair Value Measurements - Schedule of Fair Value of Financial Instruments (Details) - USD ($) $ in Millions | May 31, 2025 | Aug. 31, 2024
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | $ 2,884 | $ 2,880
Senior Notes | 3.950% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 3.95% |
Carrying Amount | $ 498 | 498
Senior Notes | 3.600% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 3.60% |
Carrying Amount | $ 498 | 497
Senior Notes | 3.000% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 3.00% |
Carrying Amount | $ 595 | 594
Senior Notes | 1.700% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 1.70% |
Carrying Amount | $ 499 | 499
Senior Notes | 4.250% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 4.25% |
Carrying Amount | $ 497 | 496
Senior Notes | 5.450% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Stated interest rate | 5.45% |
Carrying Amount | $ 297 | 296
Senior Notes | Carrying Amount | Level 2 | 3.950% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 498 | 498
Senior Notes | Carrying Amount | Level 2 | 3.600% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 498 | 497
Senior Notes | Carrying Amount | Level 2 | 3.000% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 595 | 594
Senior Notes | Carrying Amount | Level 2 | 1.700% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 499 | 499
Senior Notes | Carrying Amount | Level 2 | 4.250% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 497 | 496
Senior Notes | Carrying Amount | Level 2 | 5.450% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Carrying Amount | 297 | 296
Senior Notes | Fair Value | Level 2 | 3.950% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | 491 | 487
Senior Notes | Fair Value | Level 2 | 3.600% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | 471 | 468
Senior Notes | Fair Value | Level 2 | 3.000% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | 539 | 529
Senior Notes | Fair Value | Level 2 | 1.700% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | 487 | 476
Senior Notes | Fair Value | Level 2 | 4.250% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | 496 | 495
Senior Notes | Fair Value | Level 2 | 5.450% Senior Notes |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value | $ 305 | $ 306

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