Schedule of Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Reserve for excess and obsolete inventory
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 85	$ 70	$ 61
Additions and Adjustments Charged to Costs and Expenses	33	60	34
Additions/ (Reductions) Charged to Other Accounts	0	0	0
Write-offs/Reductions Charged to Costs and Expenses	(33)	(45)	(25)
Balance at End of Period	85	85	70
Valuation allowance for deferred taxes
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	341	288	223
Additions and Adjustments Charged to Costs and Expenses	18	54	23
Additions/ (Reductions) Charged to Other Accounts	0	9	59
Write-offs/Reductions Charged to Costs and Expenses	(6)	(10)	(17)
Balance at End of Period	$ 353	$ 341	$ 288