Environmental (Tables)

12 Months Ended

Dec. 31, 2021

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation liabilities are as follows:

	As of December 31,
	2021	2020
	(In $ millions)
Demerger obligations (Note 20)	24	29
Divestiture obligations (Note 20)	14	15
Active sites	8	12
U.S. Superfund sites	12	11
Other environmental remediation liabilities	2	2
Total	60	69

Schedule of Environmental Ownership and Liability Percentages

The Company's ownership interest and environmental liability participation percentages for such liabilities, which cannot be attributed to an InfraServ partner are as follows:

	As of December 31, 2021
	Ownership	Liability	Reserves(1)
	(In percentages)		(In $ millions)
InfraServ GmbH & Co. Gendorf KG	30	10	10
InfraServ GmbH & Co. Hoechst KG	31	40	69
YNCORIS GmbH & Co. KG(2)	22	22	1

______________________________

(1)Gross reserves maintained by the respective entity.

(2)Formerly known as InfraServ GmbH & Co. Knapsack KG.