Current Other Liabilities (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Other Liabilities, Current [Abstract]
Salaries and benefits	$ 111	$ 111
Environmental (Note 11)	20	16
Restructuring (Note 13)	45	57
Insurance	18	27
Asset retirement obligations	18	31
Derivatives (Note 15)	42	69
Current portion of benefit obligations	49	49
Interest	45	29
Sales and use tax/foreign withholding tax payable	11	15
Uncertain tax positions	64	15
Other	160	177
Total	$ 583	$ 596