Property, Plant and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 15,174	$ 15,537
Accumulated depreciation	(6,809)	(6,804)
Property, plant and equipment, net	8,365	8,733
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	412	422
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,070	3,140
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	11,119	11,295
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 573	$ 680