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Property, Plant, and Capitalized Software Property Plant and Equipment Table (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Land and improvements	$ 533	$ 589
Buildings and improvements	4,759	4,705
Computer equipment	1,767	2,015
Furniture and fixtures	1,787	1,752
Less accumulated depreciation	(3,364)	(3,328)
Property and equipment, net	5,482	5,733
Capitalized software	5,010	4,638
Less accumulated amortization	(1,866)	(1,667)
Capitalized software, net	3,144	2,971
Total property, equipment and capitalized software, net	$ 8,626	$ 8,704

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Property, Plant, and Equipment Excluding Capitalized Computer Software, Net

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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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For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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