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Income Taxes - Reconciliation of Income Tax Rate (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Income Tax Disclosure [Abstract]
U.S. federal statutory income tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal tax benefit	0.20%	0.70%	0.20%
Impact of foreign tax rates	(1.80%)	(4.00%)	(4.60%)
Permanent differences	(0.50%)	1.20%	(0.40%)
Income tax credits	(0.50%)	(0.50%)	(0.40%)
Valuation allowance	1.10%	(3.30%)	1.30%
Equity compensation	0.50%	(0.50%)	0.60%
Impact of intercompany charges and dividends	2.40%	3.60%	4.40%
Global Intangible Low-Taxed Income	0.80%	1.10%	3.00%
Change in indefinite reinvestment assertion	11.70%	0.00%	0.00%
Other, net	0.30%	(0.20%)	0.90%
Effective income tax rate	35.20%	19.10%	26.00%
Income tax benefit on income from subsidiaries	$ 74	$ 80	$ 51
Per basic share income tax benefit on income from subsidiaries (in dollars per share)	$ 0.56	$ 0.57	$ 0.34
Income tax expense associated with remeasurement of referred tax assets		$ 26

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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