Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Aug. 31, 2021	Aug. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,886,257	$ 9,660,626
Less accumulated depreciation and amortization	5,076,252	4,702,688
Total property, plant and equipment	4,810,005	4,957,938
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	324,757	317,714
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,171,423	1,110,490
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,673,748	7,559,437
Office equipment and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	378,352	362,084
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 337,977	$ 310,901