Employee Benefit Plans (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
U.S. Pension Benefits [Member]
Components of net periodic benefit cost
Service cost	$ 38	$ 32	$ 29
Interest cost	21	22	20
Expected return on plan assets	(31)	(28)	(25)
Amortization of prior service cost			1
Amortization of net loss	10	11	14
Curtailment			1
Other			3
Net periodic cost (benefit)	38	37	43
Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.90%	5.90%	6.30%
Expected long-term return on plan assets	7.80%	7.80%	8.50%
Rate of compensation increase	5.40%	4.00%	4.00%
Social security increase	2.80%	3.50%	3.50%
Non-U.S. Pension Benefits [Member]
Components of net periodic benefit cost
Service cost	9	8	3
Interest cost	33	26	15
Expected return on plan assets	(33)	(23)	(15)
Amortization of net loss	4	4	2
Curtailment	(4)	(1)
Other			(1)
Net periodic cost (benefit)	9	14	4
Weighted average assumptions used to determine net periodic benefit cost
Discount rate	5.50%	5.60%	6.40%
Expected long-term return on plan assets	6.70%	6.60%	7.20%
Rate of compensation increase	4.30%	4.20%	4.00%
Social security increase	2.90%	3.20%	3.10%
Other Postretirement Benefits Plan [Member]
Components of net periodic benefit cost
Service cost	8	10	8
Interest cost	8	9	10
Amortization of prior service cost	(2)	1	1
Net periodic cost (benefit)	$ 14	$ 20	$ 19
Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.90%	5.90%	6.30%