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Property (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	$ 85,845	$ 78,295
Less: accumulated depreciation	(35,524)	(33,047)
Total property, net	50,321	45,248
Depreciation, Amortization and Impairment [Abstract]
Depreciation and amortization expense	11,737	11,276	$ 12,047
Property, Plant and Equipment
Capitalized Interest and Software [Abstract]
Capitalized software	2,200	1,800
Depreciation, Amortization and Impairment [Abstract]
Depreciation and amortization expense	6,719	6,297	5,829
Impairment charges	115	12	0
Capitalized software amortization expense	705	614	$ 515
Land
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	1,293	1,307
Buildings and Improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	$ 13,256	11,461
Buildings and Improvements | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	5 years
Buildings and Improvements | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	40 years
Machinery and Equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	$ 37,074	33,413
Machinery and Equipment | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	27 years
Special Tools
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	$ 26,086	24,775
Special Tools | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	1 year
Special Tools | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Estimated Useful Life in Years	13 years
Construction in Progress
Property, Plant and Equipment, Net, by Type [Abstract]
Total property	$ 8,135	$ 7,340

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Depreciation, Amortization and Impairment [Abstract]

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Amount of expense for amortization of capitalized computer software costs.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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