Environmental (Tables)

12 Months Ended

Dec. 31, 2025

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Remediation Reserves

The components of environmental remediation liabilities, included in current and noncurrent Other liabilities, are as follows:

	As of December 31,
	2025	2024
	(In $ millions)
Demerger obligations (Note 19)	24	14
Divestiture obligations (Note 19)	15	14
Active sites	23	23
U.S. Superfund sites	9	10
Other environmental remediation liabilities	2	2
Total	73	63

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, 2025
	Ownership	Liability	Reserves(1)
	(In percentages)		(In $ millions)
InfraServ GmbH & Co. Gendorf KG	30	10	9
InfraServ GmbH & Co. Hoechst KG	31	42	68
Yncoris GmbH & Co. KG	22	23	1

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(1)Gross reserves maintained by the respective entity.