Other Income and Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Other Income and Loss [Abstract]
Total - Automotive	$ 404	$ 190
Total - Financial Services	91	74
Automotive [Member]
Other Income and Loss [Abstract]
Investment-related interest Income	61	45
Interest income/(expense) on income taxes	(2)	(9)
Realized and unrealized gains/(losses) on cash equivalents and marketable securities	72	(27)
Royalty income	183	142
Other	90	39
Total - Automotive	404	190
Financial Services [Member]
Other Income and Loss [Abstract]
Investment-related interest Income	19	19
Interest income/(expense) on income taxes	(2)	(3)
Insurance premiums earned	39	31
Other	35	27
Total - Financial Services	$ 91	$ 74