Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	May 31, 2020	Sep. 01, 2019	Aug. 31, 2019
Operating Leases:
Operating lease right-of-use assets	$ 21,609	$ 22,000	$ 0
Operating lease obligations - current	2,288		0
Operating lease obligations - non current	21,943		$ 0
Total operating lease obligations	24,231	$ 24,000
Finance Leases:
Property, plant and equipment, net	770
Lease obligations included in:
Accrued expenses and other liabilities	47
Other non-current liabilities	1,008
Total finance lease obligations	$ 1,055
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent