Leases - Schedule of Lease Assets and Lease Liabilities included on Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Aug. 31, 2025	Aug. 31, 2024
Assets
Operating lease assets	$ 462	$ 360
Finance lease assets	391	378
Total lease assets	853	738
Current
Operating lease liabilities	$ 93	$ 93
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses	Accrued expenses
Finance lease liabilities	$ 199	$ 119
Non-current
Operating lease liabilities	$ 388	$ 284
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Finance lease liabilities	$ 166	$ 235
Total lease liabilities	846	731
Finance lease assets, accumulated amortization	$ 136	$ 162