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Environmental (Tables)

12 Months Ended

Dec. 31, 2019

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation liabilities are as follows:



	As of December 31,
	2019	2018
	(In $ millions)
Demerger obligations (Note 24)	23	26
Divestiture obligations (Note 24)	12	16
Active sites	13	14
US Superfund sites	11	11
Other environmental remediation liabilities	2	2
Total	61	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, 2019
	Ownership	Liability	Reserves⁽¹⁾
	(In percentages)		(In $ millions)
InfraServ GmbH & Co. Gendorf KG	30	10	9
InfraServ GmbH & Co. Hoechst KG	32	40	68
YNCORIS GmbH & Co. KG⁽²⁾	22	22	1

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⁽¹⁾	Gross reserves maintained by the respective entity.

⁽²⁾

Formerly known as InfraServ GmbH & Co. Knapsack KG.