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New Accounting Standards Cumulative Effect of Changes due to Adoption (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ford Credit finance receivables, net of allowance for credit losses of $162 and $389 (Note 8)	$ 54,889	$ 53,582	$ 53,651
Trade and other receivables, less allowances of $63 and $72	6,625	9,234	9,237
Ford Credit finance receivables, net of allowance for credit losses of $351 and $842 (Note 8)	51,141	53,520	53,703
Equity in net assets of affiliated companies	2,275	2,512	2,519
Deferred income taxes		11,865
Deferred income taxes		432
Retained earnings	29,698		33,230	$ 36,434	$ 35,966
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 17,527	20,118	20,320	$ 23,226	$ 22,668
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ford Credit finance receivables, net of allowance for credit losses of $162 and $389 (Note 8)		(69)
Trade and other receivables, less allowances of $63 and $72		(3)
Ford Credit finance receivables, net of allowance for credit losses of $351 and $842 (Note 8)		(183)
Equity in net assets of affiliated companies		(7)
Deferred income taxes		2
Deferred income taxes		$ (58)
Accounting Standards Update 2016-13 \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings			(202)
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Ford Credit finance receivables, net of allowance for credit losses of $162 and $389 (Note 8)			53,651
Trade and other receivables, less allowances of $63 and $72			9,237
Ford Credit finance receivables, net of allowance for credit losses of $351 and $842 (Note 8)			53,703
Equity in net assets of affiliated companies			2,519
Deferred income taxes			11,863
Deferred income taxes			490
Previously Reported \| Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings			$ 20,320