Properties, Plants, and Equipment, net (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,929		$ 4,663
Less: accumulated depreciation and amortization	(2,560)		(2,449)
Properties, plants and equipment excluding construction work in progress	2,369		2,214
Construction work-in-progress	183		415
Properties, plants, and equipment, net	2,552		2,629
Capital expenditures incurred but not yet paid	29	$ 71
Revision of Prior Period
Property, Plant and Equipment [Line Items]
Less: accumulated depreciation and amortization	171
Construction work-in-progress	67
Land and land rights
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	97		99
Land and land rights | Revision of Prior Period
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	(2)
Structures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,016		938
Structures | Revision of Prior Period
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	(120)
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,816		$ 3,626
Machinery and equipment | Revision of Prior Period
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ (116)