Cash, Cash Equivalents, and Marketable Securities (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Items measured at fair value [Line Items]
Total cash and cash equivalents	$ 16,828	$ 18,492
Restricted Cash	193	146	$ 114
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	17,021	18,638	16,337	$ 16,019
Fair Value, Measurements, Recurring [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	1,503	2,429
Marketable securities	19,648	20,435
Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member] | Investment Type [Member]
Items measured at fair value [Line Items]
Cash, time deposits, and money market funds	15,325	16,063
U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	18	913
Marketable securities	3,353	6,546
U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	3	733
Marketable securities	2,156	2,868
Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	797	703
Marketable securities	7,367	5,930
Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	685	80
Marketable securities	5,822	4,879
Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Marketable securities	558	138
Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Marketable securities	392	74
Operating Segments [Member] | Automotive
Items measured at fair value [Line Items]
Total cash and cash equivalents	7,730	8,930
Restricted Cash	16		5
Operating Segments [Member] | Automotive | Fair Value, Measurements, Recurring [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	446	1,401
Marketable securities	17,362	17,554
Operating Segments [Member] | Automotive | Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member] | Investment Type [Member]
Items measured at fair value [Line Items]
Cash, time deposits, and money market funds	7,284	7,529
Operating Segments [Member] | Automotive | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	8	913
Marketable securities	2,949	5,580
Operating Segments [Member] | Automotive | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	3	433
Marketable securities	1,992	2,484
Operating Segments [Member] | Automotive | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	210	0
Marketable securities	6,322	5,270
Operating Segments [Member] | Automotive | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	225	55
Marketable securities	5,306	4,031
Operating Segments [Member] | Automotive | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Marketable securities	558	138
Operating Segments [Member] | Automotive | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Marketable securities	235	51
Operating Segments [Member] | Mobility Segment [Member]
Items measured at fair value [Line Items]
Total cash and cash equivalents	19	4
Restricted Cash	31		7
Operating Segments [Member] | Mobility Segment [Member] | Fair Value, Measurements, Recurring [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	0
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member] | Investment Type [Member]
Items measured at fair value [Line Items]
Cash, time deposits, and money market funds	19	4
Operating Segments [Member] | Mobility Segment [Member] | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	0
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	0
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	0
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	0
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Marketable securities	0	0
Operating Segments [Member] | Mobility Segment [Member] | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Marketable securities	0	0
Operating Segments [Member] | Ford Credit [Member]
Items measured at fair value [Line Items]
Total cash and cash equivalents	9,079	9,558
Restricted Cash	146		$ 102
Operating Segments [Member] | Ford Credit [Member] | Fair Value, Measurements, Recurring [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	1,057	1,028
Marketable securities	2,286	2,881
Operating Segments [Member] | Ford Credit [Member] | Fair Value, Estimate Not Practicable, Carrying (Reported) Amount [Member] | Investment Type [Member]
Items measured at fair value [Line Items]
Cash, time deposits, and money market funds	8,022	8,530
Operating Segments [Member] | Ford Credit [Member] | U.S. government | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	10	0
Marketable securities	404	966
Operating Segments [Member] | Ford Credit [Member] | U.S. government agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	0	300
Marketable securities	164	384
Operating Segments [Member] | Ford Credit [Member] | Non-U.S. government and agencies | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	587	703
Marketable securities	1,045	660
Operating Segments [Member] | Ford Credit [Member] | Corporate debt | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Cash and cash equivalents	460	25
Marketable securities	516	848
Operating Segments [Member] | Ford Credit [Member] | Equities (a) | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Items measured at fair value [Line Items]
Marketable securities	0	0
Operating Segments [Member] | Ford Credit [Member] | Other marketable securities | Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Items measured at fair value [Line Items]
Marketable securities	157	23
Equity Method Investments [Member]
Items measured at fair value [Line Items]
Marketable Securities, Unrealized Gain (Loss)	$ 158	$ (27)