Environmental (Tables)

6 Months Ended

Jun. 30, 2013

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation reserves are as follows:

	As of June 30, 2013	As of December 31, 2012
	(In $ millions)
Demerger obligations (Note 17)	27	31
Divestiture obligations (Note 17)	22	21
Active sites	25	28
US Superfund sites	14	15
Other environmental remediation reserves	5	4
Total	93	99