Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	May 31, 2023	Aug. 31, 2022
Operating Leases:
Operating lease right-of-use assets	$ 22,051	$ 21,259
Operating lease obligations - current	2,356	2,286
Operating lease obligations - non-current	22,181	21,517
Total operating lease obligations	24,537	23,803
Finance leases:
Property, plant and equipment, net	$ 687	$ 645
Finance lease, right-of-use asset, statement of financial position, extensible enumeration	Property, plant and equipment, net	Property, plant and equipment, net
Lease obligations included in:
Accrued expenses and other liabilities	$ 55	$ 37
Finance lease, liability, current, statement of financial position, extensible enumeration	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Other non-current liabilities	$ 927	$ 899
Finance lease, liability, noncurrent, statement of financial position, extensible enumeration	Other non-current liabilities	Other non-current liabilities
Total finance lease obligations	$ 982	$ 936