Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,853	$ 9,776
Less: Accumulated depreciation	3,625	2,817
Property, plant and equipment, less accumulated depreciation	6,228	6,959	$ 2,325
Depreciation on property, plant and equipment	1,031	716	$ 311
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	432	413
Buildings, structures and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,854	3,168
Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 6,567	$ 6,195
Minimum | Land and improvements
Property, Plant and Equipment [Line Items]
Useful Life	8 years
Minimum | Buildings, structures and related equipment
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Minimum | Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Useful Life	2 years
Maximum | Land and improvements
Property, Plant and Equipment [Line Items]
Useful Life	20 years
Maximum | Buildings, structures and related equipment
Property, Plant and Equipment [Line Items]
Useful Life	40 years
Maximum | Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Useful Life	20 years