Environmental (Tables)

3 Months Ended

Mar. 31, 2016

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation reserves are as follows:

	As of March 31, 2016	As of December 31, 2015
	(In $ millions)
Demerger obligations (Note 16)	20	22
Divestiture obligations (Note 16)	17	17
Active sites	18	18
US Superfund sites	13	13
Other environmental remediation reserves	3	2
Total	71	72