Property Plant and Equipment (Detail) - USD ($) $ in Millions	May 31, 2020	May 31, 2019
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 9,661	$ 9,469
Less accumulated depreciation	4,795	4,725
TOTAL PROPERTY, PLANT AND EQUIPMENT, NET	4,866	4,744
Land and improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	345	329
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	2,442	2,445
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	2,751	2,726
Internal-use software
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	1,483	1,609
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	1,554	1,563
Construction in process
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 1,086	$ 797