Pension and Other Postretirement Employee Benefit Plans - Weighted-Average Assumptions Net Periodic Benefit Costs (Details 6)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Pension Plans, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Actual Return On Plan Assets Percentage	12.66%	0.72%	12.23%
Discount rate:
Defined benefit pension plans and OPEB plans	4.60%	5.50%	6.00%
Expected long-term rate of return on plan assets:
Defined benefit pension plans and OPEB plans	7.50%	7.50%	7.50%
OPEB plans, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Actual Return On Plan Assets Percentage	10.10%	5.22%	11.23%
Discount rate:
Defined benefit pension plans and OPEB plans	4.70%	5.50%	6.00%
Expected long-term rate of return on plan assets:
Defined benefit pension plans and OPEB plans	6.25%	6.25%	7.00%
OPEB plans, Non-U.S. [Member]
Discount rate:
Defined benefit pension plans and OPEB plans	0.00%	0.00%	0.00%
Pension and other postretirement employee benefit plans, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	4.00%	4.00%
Expected long-term rate of return on plan assets:
Rate of compensation increase	4.00%	4.00%	4.00%
Health care cost trend rate:
Assumed for next year	7.00%	7.00%	7.75%
Ultimate	5.00%	5.00%	5.00%
Year when rate will reach ultimate	2017	2017	2014
Foreign Pension Plans and Other Foreign Postretirement Benefit Plans [Member]
Health care cost trend rate:
Assumed for next year	0.00%	0.00%	0.00%
Ultimate	0.00%	0.00%	0.00%
Maximum [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	4.10%	4.20%
Defined Benefit Plan Actual Return On Plan Assets Percentage	11.72%	13.12%	10.65%
Discount rate:
Defined benefit pension plans and OPEB plans	4.80%	5.50%	5.70%
Expected long-term rate of return on plan assets:
Defined benefit pension plans and OPEB plans	4.60%	5.40%	6.20%
Maximum [Member] | Foreign Pension Plans and Other Foreign Postretirement Benefit Plans [Member]
Expected long-term rate of return on plan assets:
Rate of compensation increase	4.20%	4.50%	4.50%
Minimum [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	2.75%	2.75%
Defined Benefit Plan Actual Return On Plan Assets Percentage	7.21%	(4.29%)	0.77%
Discount rate:
Defined benefit pension plans and OPEB plans	1.50%	1.60%	2.00%
Expected long-term rate of return on plan assets:
Defined benefit pension plans and OPEB plans	2.50%	2.40%	2.40%
Minimum [Member] | Foreign Pension Plans and Other Foreign Postretirement Benefit Plans [Member]
Expected long-term rate of return on plan assets:
Rate of compensation increase	2.75%	3.00%	3.00%