Environmental (Tables)

9 Months Ended

Sep. 30, 2012

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation reserves are as follows:

	As of	As of
	September 30, 2012	December 31, 2011
	(In $ millions)
Demerger obligations (Note 17)	34	34
Divestiture obligations (Note 17)	22	24
Active sites	28	20
US Superfund sites	15	14
Other environmental remediation reserves	3	4
Total	102	96