Supplemental Balance Sheet Information - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Property, plant and equipment, net
Land	$ 166	$ 153
Buildings	1,623	1,600
Manufacturing machinery and equipment	5,409	5,309
Other equipment	1,553	1,518
Property, plant and equipment, gross	8,751	8,580
Accumulated depreciation	(5,035)	(4,830)
Property, plant and equipment, net	$ 3,716	$ 3,750

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 before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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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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