Environmental (Tables)

3 Months Ended

Mar. 31, 2019

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation liabilities are as follows:

	As of March 31, 2019	As of December 31, 2018
	(In $ millions)
Demerger obligations (Note 19)	25	26
Divestiture obligations (Note 19)	14	16
Active sites	13	14
US Superfund sites	11	11
Other environmental remediation liabilities	2	2
Total	65	69