Pensions Benefit Plans and Other Postretirement Benefits (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
U.S Pension Plans
Components of the net pension expense (income) and postretirement benefit cost
Service cost	$ 6	$ 6	$ 19	$ 19
Interest cost	31	32	93	98
Expected asset return	(46)	(47)	(140)	(143)
Amortization
Actuarial loss	21	18	63	53
Net amortization	21	18	63	53
Net periodic pension and postretirement benefit cost	12	9	35	27
Non-U.S. Pension Plans
Components of the net pension expense (income) and postretirement benefit cost
Service cost	6	6	18	16
Interest cost	24	23	66	61
Expected asset return	(23)	(24)	(67)	(63)
Amortization
Prior service credit	(1)		(1)
Actuarial loss	6	6	18	16
Net amortization	5	6	17	16
Net periodic pension and postretirement benefit cost	12	11	34	30
U.S Postretirement Benefit Plans
Components of the net pension expense (income) and postretirement benefit cost
Service cost	1	1	1	1
Interest cost	2	2	7	8
Amortization
Prior service credit	(1)	(1)	(3)	(3)
Actuarial loss	1	1	4	4
Net amortization			1	1
Net periodic pension and postretirement benefit cost	3	3	9	10
Non-U.S. Postretirement Benefit Plans
Components of the net pension expense (income) and postretirement benefit cost
Service cost			1	1
Interest cost	1	2	3	4
Amortization
Net periodic pension and postretirement benefit cost	$ 1	$ 2	$ 4	$ 5