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Fair Value Measurements - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	May 31, 2023	Apr. 30, 2023	Apr. 13, 2023	Aug. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 3,174			$ 2,875
Senior Notes \| 4.900% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	4.90%		4.90%
Carrying Amount	$ 300			300
Senior Notes \| 3.950% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	3.95%
Carrying Amount	$ 497			497
Senior Notes \| 3.600% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	3.60%
Carrying Amount	$ 496			496
Senior Notes \| 3.000% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	3.00%
Carrying Amount	$ 593			592
Senior Notes \| 1.700% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	1.70%
Carrying Amount	$ 498			497
Senior Notes \| 4.250% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	4.25%
Carrying Amount	$ 495			493
Senior Notes \| 5.450% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Stated interest rate	5.45%	5.45%	5.45%
Carrying Amount	$ 295			0
Senior Notes \| Carrying Amount \| Level 3 \| 4.900% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	300			300
Senior Notes \| Carrying Amount \| Level 2 \| 3.950% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	497			497
Senior Notes \| Carrying Amount \| Level 2 \| 3.600% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	496			496
Senior Notes \| Carrying Amount \| Level 2 \| 3.000% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	593			592
Senior Notes \| Carrying Amount \| Level 2 \| 1.700% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	498			497
Senior Notes \| Carrying Amount \| Level 2 \| 4.250% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	495			493
Senior Notes \| Carrying Amount \| Level 2 \| 5.450% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	295			0
Senior Notes \| Fair Value \| Level 3 \| 4.900% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	300			300
Senior Notes \| Fair Value \| Level 2 \| 3.950% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	469			471
Senior Notes \| Fair Value \| Level 2 \| 3.600% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	446			440
Senior Notes \| Fair Value \| Level 2 \| 3.000% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	503			500
Senior Notes \| Fair Value \| Level 2 \| 1.700% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	451			446
Senior Notes \| Fair Value \| Level 2 \| 4.250% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	482			483
Senior Notes \| Fair Value \| Level 2 \| 5.450% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 297			$ 0