Environmental (Tables)

3 Months Ended

Mar. 31, 2021

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation liabilities are as follows:

	As of March 31, 2021	As of December 31, 2020
	(In $ millions)
Demerger obligations (Note 16)	27	29
Divestiture obligations (Note 16)	14	15
Active sites	11	12
U.S. Superfund sites	12	11
Other environmental remediation liabilities	2	2
Total	66	69