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Fixed Assets - Summary of Fixed Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Fixed assets gross	$ 35,009	$ 38,664
Less: Accumulated depreciation	25,739	26,985
Fixed assets less accumulated depreciation	9,270	11,679
Land
Property Plant And Equipment [Line Items]
Fixed assets gross	483	462
Buildings & improvements
Property Plant And Equipment [Line Items]
Fixed assets gross	5,156	5,534
Machinery & equipment
Property Plant And Equipment [Line Items]
Fixed assets gross	$ 29,370	$ 32,668

X

- Definition

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, 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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