Pensions, Other Post-employment Benefits and Employee Benefit Plans Narrative (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2010	Jun. 30, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2	$ 162
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	24	4
Accumulated benefit obligation for all pension plans			1,735	1,554
Health care cost trend rate			7.25%	7.63%
Ultimate health care cost trend rate			5.00%	5.00%
Year ultimate health care cost trend rate reached			2018	2018
Ultimate drug cost trend rate			5.00%	5.00%
Drug cost trend rate			8.38%	8.94%
Year ultimate drug cost trend rate reached			2018	2018
100 bp increase in health care cost trend rate, impact on Total service and Interest cost			1
100 bp decrease in health care cost trend rate, impact on APBO			27
100 bp decrease in health care cost trend rate, impact on Total service and Interest cost			(1)
100 bp decrease in health care cost trend rate, impact on APBO			(23)
Expected future contributions to benefit plans in 2013			82
Total expenses attributable to defined contribution plan			25	25	23
Contributions to multi-employer plans			1	1	1
Liabilities for benefits to former or inactive employees paid after employment but before retirement			34	36
United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain			16
Service cost			21	19
Weighted average assumptions used to determine benefit obligation, Discount rate			3.70%	4.50%
Weighted average assumptions used to determine benefit obligation, Rate of compensation increase			0.00%	3.50%
Weighted average assumptions used to determine net periodic benefit cost, Discount rate			4.50%	5.15%
Weighted average assumptions used to determine net periodic benefit cost, Expected return on plan assets			7.60%	8.50%
Weighted average assumptions used to determine net periodic benefit cost, Rate of consumption increase			3.50%	3.50%
Percent of plan assets invested in actively managed investment funds			87.00%
Defined benefit plans with projected benefit obligation in excess of plan assets			0	0
Fair value of plan assets for benefit plans with projected benefit obligations in excess of plan assets			0	0
Projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortizatoin of actuarial losses in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortization of prior service credit in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as net periodic benefit cost in 2013			0
Projected future benefit payments for benefit plans, 2013			81
Projected future benefit payments for benefit plans, 2014			80
Projected future benefit payments for benefit plans, 2015			81
Projected future benefit payments for benefit plans, 2016			83
Projected future benefit payments for benefit plans, 2017			78
Projected future benefit payments for benefit plans, 2018-2022			413
United States Welfare Benefit Plan [Member] | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain			51	1
Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost			9	9
Weighted average assumptions used to determine benefit obligation, Discount rate			2.99%	4.69%
Weighted average assumptions used to determine benefit obligation, Rate of compensation increase			3.13%	3.16%
Weighted average assumptions used to determine net periodic benefit cost, Discount rate			4.69%	4.92%
Weighted average assumptions used to determine net periodic benefit cost, Expected return on plan assets			5.27%	5.34%
Weighted average assumptions used to determine net periodic benefit cost, Rate of consumption increase			3.16%	3.18%
Defined benefit plans with projected benefit obligation in excess of plan assets			0	0
Fair value of plan assets for benefit plans with projected benefit obligations in excess of plan assets			0	0
Projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets			0	0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortizatoin of actuarial losses in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortization of prior service credit in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as net periodic benefit cost in 2013			0
Projected future benefit payments for benefit plans, 2013			27
Projected future benefit payments for benefit plans, 2014			24
Projected future benefit payments for benefit plans, 2015			25
Projected future benefit payments for benefit plans, 2016			24
Projected future benefit payments for benefit plans, 2017			25
Projected future benefit payments for benefit plans, 2018-2022			134
Other Post-Employment Benefits
Defined Benefit Plan Disclosure [Line Items]
Curtailment gain			51	1	29
Service cost			1	1	1
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements			0	0	0
Other Post-Employment Benefits | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost			1	1
Weighted average assumptions used to determine benefit obligation, Discount rate			3.60%	4.45%
Weighted average assumptions used to determine benefit obligation, Rate of compensation increase			0.00%	0.00%
Weighted average assumptions used to determine net periodic benefit cost, Discount rate			4.45%	5.10%
Weighted average assumptions used to determine net periodic benefit cost, Expected return on plan assets			0.00%	0.00%
Weighted average assumptions used to determine net periodic benefit cost, Rate of consumption increase			0.00%	0.00%
Defined benefit plans with projected benefit obligation in excess of plan assets			0	0
Fair value of plan assets for benefit plans with projected benefit obligations in excess of plan assets			0	0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortizatoin of actuarial losses in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as Amortization of prior service credit in 2013			0
Amounts in accumulated other comprehensive loss expected to be recognized as net periodic benefit cost in 2013			0
Projected future benefit payments for benefit plans, 2013			30
Projected future benefit payments for benefit plans, 2014			30
Projected future benefit payments for benefit plans, 2015			30
Projected future benefit payments for benefit plans, 2016			29
Projected future benefit payments for benefit plans, 2017			29
Projected future benefit payments for benefit plans, 2018-2022			128
25 bp decrease in discount rate | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			35
Change in accumulated OCL			(35)
25 bp decrease in discount rate | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			1
Change in PBO			15
Change in accumulated OCL			(15)
25 bp decrease in discount rate | Other Post-Employment Benefits | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			9
25 bp increase in discount rate | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			(34)
Change in accumulated OCL			34
25 bp increase in discount rate | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			(1)
Change in PBO			(14)
Change in accumulated OCL			14
25 bp increase in discount rate | Other Post-Employment Benefits | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			(9)
25 bp decrease in return on assets rate | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			2
Change in PBO			0
Change in accumulated OCL			0
25 bp decrease in return on assets rate | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			0
Change in accumulated OCL			0
25 bp decrease in return on assets rate | Other Post-Employment Benefits | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			0
25 bp increase in return on assets rate | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			(2)
Change in PBO			0
Change in accumulated OCL			0
25 bp increase in return on assets rate | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			0
Change in accumulated OCL			0
25 bp increase in return on assets rate | Other Post-Employment Benefits | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in 2013 expense			0
Change in PBO			$ 0
Equity securities | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			50.00%
Equity securities | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			5.00%
Fixed Income Investments [Member] | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			25.00%
Other Investments [Member] | United States Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			25.00%
Insurance contracts | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			70.00%
Debt Securities [Member] | Non-U.S. Plans | Automotive Segment [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations			25.00%