Leases - Other Supplemental Information (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Cash paid for amounts included in the measurement of lease obligations
Operating cash flows from operating leases	$ 893	$ 924
Operating cash flows from finance leases	13	13
Financing cash flows from finance leases	21	14
Total	927	951
Right-of-use assets obtained in exchange for new lease obligations
Operating leases	75	679
Finance leases	12	5
Total	$ 87	$ 685