Environmental (Tables)

6 Months Ended

Jun. 30, 2017

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation reserves are as follows:

	As of June 30, 2017	As of December 31, 2016
	(In $ millions)
Demerger obligations (Note 18)	25	18
Divestiture obligations (Note 18)	16	16
Active sites	15	16
US Superfund sites	11	11
Other environmental remediation reserves	2	3
Total	69	64