Other Income and Loss (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Other Income and Loss [Abstract]
Total	$ 199	$ 59	$ 239	$ 248
Total	53	67	138	193
Automotive [Member]
Other Income and Loss [Abstract]
Interest income	105	60	190	107
Realized and unrealized gains/(losses) on cash equivalents and marketable securities	50	(86)	6	33
Gains/(losses) on the sale of held-for-sale operations, equity and cost investments, and other dispositions	8	14	33	18
Gain/(loss) on extinguishment of debt		49	(60)	49
Other Nonoperating Income Expense	36	22	70	41
Total	199	59	239	248
Financial Services [Member]
Other Income and Loss [Abstract]
Interest income	13	22	37	38
Realized and unrealized gains/(losses) on cash equivalents and marketable securities	21	19	25	21
Gains/(losses) on the sale of held-for-sale operations, equity and cost investments, and other dispositions		1		2
Gain/(loss) on extinguishment of debt	(28)	(53)	(36)	(60)
Investment and other income related to sales of receivables	0	1	0	1
Insurance premiums earned, net	23	24	46	50
Other Nonoperating Income Expense	24	53	66	141
Total	$ 53	$ 67	$ 138	$ 193