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Property, Plant and Equipment (Depreciation and Maintenance and Repair Expenses) (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 891 $ 828 $ 739
Maintenance and repair expense $ 395 $ 381 $ 334