Current Other Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Other Liabilities, Current [Abstract]
Salaries and benefits	$ 101	$ 111
Environmental (Note 15)	25	16
Restructuring (Note 17)	44	57
Insurance	19	27
Asset retirement obligations	22	31
Derivatives (Note 21)	26	69
Current portion of benefit obligations (Note 14)	47	49
Interest	25	29
Sales and use tax/foreign withholding tax payable	16	15
Uncertain tax positions (Note 18)	70	15
Other	144	177
Total	$ 539	$ 596