Other Income and Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Other Income and Loss [Abstract]
Total - Automotive	$ 446	$ 255	$ 908	$ 739
Total - Financial Services	97	90	241	245
Automotive [Member]
Other Income and Loss [Abstract]
Investment-related interest Income	60	65	161	145
Interest income/(expense) on income taxes	0	(3)	1	34
Realized and unrealized gains/(losses) on cash equivalents and marketable securities	189	7	146	7
Gains/(Losses) on changes in investments in affiliates	0	0	18	1
Gains (Losses) on Extinguishment of Debt	0	0	1	(5)
Royalty income	149	142	448	444
Other	48	44	133	113
Total - Automotive	446	255	908	739
Financial Services [Member]
Other Income and Loss [Abstract]
Investment-related interest Income	21	14	58	35
Interest income/(expense) on income taxes	(3)	1	(9)	(9)
Realized and unrealized gains/(losses) on cash equivalents and marketable securities	10	(1)	16	7
Insurance premiums earned	32	31	97	94
Other	37	45	79	118
Total - Financial Services	$ 97	$ 90	$ 241	$ 245