Property, Plant and Equipment (Components) (Details) - USD ($) $ in Millions	Aug. 31, 2021	Aug. 31, 2020
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 9,108	$ 8,191
Less accumulated depreciation and amortization	5,033	4,526
Property plant and equipment, net	4,075	3,665
Land and improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	143	142
Buildings
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,216	1,152
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	1,249	1,144
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	5,216	4,686
Furniture, fixtures and office equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	234	222
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	819	760
Transportation equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	9	9
Construction in progress
Property, Plant and Equipment [Line Items]
Property plant and equipment, gross	$ 222	$ 76