Environmental (Tables)

3 Months Ended

Mar. 31, 2017

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation reserves are as follows:

	As of March 31, 2017	As of December 31, 2016
	(In $ millions)
Demerger obligations (Note 17)	17	18
Divestiture obligations (Note 17)	16	16
Active sites	17	16
US Superfund sites	11	11
Other environmental remediation reserves	2	3
Total	63	64