Net Property (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment, Net, by Type [Abstract]
Net property	$ 41,928	$ 40,821
Depreciation, Depletion and Amortization [Abstract]
Depreciation and other amortization	3,067	3,041	$ 2,878
Tooling amortization	(1,700)	(1,167)	(1,149)
Depreciation, Depletion, and Amortization, Including Impairment	5,085	5,381	5,434
Maintenance and rearrangement	$ 1,919	1,909	2,083
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	14 years 6 months
Software
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	$ 5,694	5,423
Land
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	$ 360	367
Land Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Buildings
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Building and Building Improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	$ 13,912	12,636
Other Machinery and Equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	40,765	41,202
Construction in progress
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	6,240	5,308
Total land, plant and equipment, and other
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property	66,971	64,936
Accumulated depreciation	(33,525)	(33,679)
Net property	33,446	31,257
Tools, Dies and Molds
Property, Plant and Equipment, Net, by Type [Abstract]
Net property	8,482	9,564
Depreciation, Depletion and Amortization [Abstract]
Tooling amortization	$ 2,018	$ 2,340	$ 2,556
Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years