Supplemental Financial Information Supplemental Financial Information - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	$ 1,032	$ 929
Finance Lease, Right-of-Use Asset	38	0
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(619)	(570)
Property, plant and equipment, net	413	359
Land and Land Improvements [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	5	6
Building and Building Improvements [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	274	273
Machinery and other equipment [Member]
Class of Stock [Line Items]
Property, Plant and Equipment, Gross	$ 715	$ 650

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount of lessee's right to use underlying asset under finance lease.

+ References

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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