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Employee Separation and Exit and Disposal Activities Employee Separation and Exit and Disposal Activities (Details) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2019	Jul. 31, 2019
India Automotive Operations
Restructuring Charges [Abstract]
Restructuring Charges					$ 1,400
Pension Costs \| Global Redesign
Restructuring Charges [Abstract]
Restructuring Charges					311
Accelerated depreciation, separations, and payments \| Global Redesign
Restructuring Charges [Abstract]
Restructuring Charges	$ 413	$ 1,000	$ 1,200	$ 514
Minimum \| Accelerated depreciation, separations, and payments \| Global Redesign
Restructuring Charges [Abstract]
Restructuring and Related Cost, Expected Cost	900				900
Maximum \| Accelerated depreciation, separations, and payments \| Global Redesign
Restructuring Charges [Abstract]
Restructuring and Related Cost, Expected Cost	1,400				1,400
Ford Sollers Joint Venture
Restructuring Reserve [Roll Forward]
Ownership Percentage			100.00%
Noncontrolling Interest, Ownership Percentage by Parent						51.00%
Operating Segments \| Automotive
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance				$ 291	291
Changes in accruals (a)					1,382
Payments					(911)
Foreign currency translation					(28)
Restructuring Reserve	$ 734				$ 734