Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Feb. 28, 2023	Aug. 31, 2022
Operating Leases:
Operating lease right-of-use assets	$ 22,024	$ 21,259
Operating lease obligations - current	2,340	2,286
Operating lease obligations - non-current	22,195	21,517
Total operating lease obligations	24,534	23,803
Finance leases:
Property, plant and equipment, net	694	645
Lease obligations included in:
Accrued expenses and other liabilities	53	37
Other non-current liabilities	931	899
Total finance lease obligations	$ 984	$ 936
Finance lease, right-of-use asset, statement of financial position, extensible enumeration	Property, plant and equipment, net	Property, plant and equipment, net
Finance lease, liability, current, statement of financial position, extensible enumeration	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Finance lease, liability, noncurrent, statement of financial position, extensible enumeration	Other non-current liabilities	Other non-current liabilities