Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, plant and equipment	$ 29,773	$ 29,405
Accumulated depreciation	(13,969)	(13,663)
Total	15,804	15,742
Land [Member]
Property, plant and equipment	441	471
Building [Member]
Property, plant and equipment	6,145	6,453
Equipment [Member]
Property, plant and equipment	21,208	20,563
Construction in Progress [Member]
Property, plant and equipment	$ 1,979	$ 1,918

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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