Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Information [Line Items]
Number of Operating Segments	3
Revenues	$ 38,920	$ 39,853	$ 80,879	$ 78,999
Income/(loss) before income taxes	1,349	2,266	3,268	4,517
Equity in net income/(loss) of affiliated companies	60	273	284	619
Cash, cash equivalents, and marketable securities	36,476	39,109	36,476	39,109
Restricted Cash	193	114	193	114	$ 146
Total assets	258,079	248,037	258,079	248,037	$ 258,496
Automotive capital spending			3,688	3,264
Settlement of derivatives			(109)	(154)
Special Items [Member]
Segment Information [Line Items]
Income/(loss) before income taxes	71	(146)	(15)	(218)
Restricted Cash	0	0	$ 0	0
Operating Segments [Member] | Automotive
Segment Information [Line Items]
Number of Regional Business Units			5
Revenues	35,905	37,113	$ 74,917	73,588
Income/(loss) before income taxes	1,157	2,395	2,889	4,570
Equity in net income/(loss) of affiliated companies	54	266	272	605
Cash, cash equivalents, and marketable securities	25,092	28,428	25,092	28,428
Restricted Cash	16	5	16	5
Total assets	103,306	104,151	103,306	104,151
Operating Segments [Member] | Mobility Segment [Member]
Segment Information [Line Items]
Revenues	6	2	10	4
Income/(loss) before income taxes	(181)	(63)	(283)	(127)
Equity in net income/(loss) of affiliated companies		(1)		(1)
Cash, cash equivalents, and marketable securities	19	4	19	4
Restricted Cash	31	7	31	7
Total assets	470	80	470	80
Operating Segments [Member] | Ford Credit [Member]
Segment Information [Line Items]
Revenues	3,009	2,738	5,952	5,407
Income/(loss) before income taxes	645	619	1,286	1,100
Equity in net income/(loss) of affiliated companies	6	8	12	15
Cash, cash equivalents, and marketable securities	11,365	10,677	11,365	10,677
Restricted Cash	146	102	146	102
Total assets	158,604	151,047	158,604	151,047
Interest on Debt [Domain] | Adjustments [Member]
Segment Information [Line Items]
Revenues	0	0	0	0
Income/(loss) before income taxes	(301)	(291)	(590)	(584)
Equity in net income/(loss) of affiliated companies	0	0	0	0
Cash, cash equivalents, and marketable securities	0	0	0	0
Restricted Cash	0	0	0	0
Total assets	0	0	0	0
Special items [Member] | Adjustments [Member]
Segment Information [Line Items]
Income/(loss) before income taxes	(42)	(248)	(19)	(224)
Restricted Cash	0	0	0	0
Adjustments [Member] | Adjustments [Member]
Segment Information [Line Items]
Restricted Cash	0	0	0	0
Total assets	$ (4,301)	$ (7,241)	$ (4,301)	$ (7,241)