Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill

	Engineered Materials	Acetyl Chain	Total
	(In $ millions)
As of December 31, 2023	6,602	375	6,977
Impairment losses	(1,517)	—	(1,517)
Exchange rate changes	(60)	(13)	(73)
As of December 31, 2024(1)	5,025	362	5,387
Transfer to assets held for sale (Note 4)	(154)	—	(154)
Impairment losses	(1,140)	—	(1,140)
Exchange rate changes	51	27	78
As of December 31, 2025(2)	3,782	389	4,171

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(1)Includes accumulated impairment losses of $1.5 billion in the Engineered Materials segment.

(2)Includes accumulated impairment losses of $2.7 billion in the Engineered Materials segment.

Schedule of Finite-Lived Intangible Assets, Net

Finite-lived intangible assets are as follows:

	Licenses	Customer- Related Intangible Assets	Developed Technology	Covenants Not to Compete and Other	Total
	(In $ millions)
Gross Asset Value
As of December 31, 2023	41	2,437	601	55	3,134
Exchange rate changes	(1)	(31)	(14)	—	(46)
As of December 31, 2024	40	2,406	587	55	3,088
Transfer to assets held for sale (Note 4)	—	(145)	(51)	—	(196)
Exchange rate changes	1	170	27	(1)	197
As of December 31, 2025	41	2,431	563	54	3,089
Accumulated Amortization
As of December 31, 2023	(38)	(639)	(95)	(42)	(814)
Amortization	—	(116)	(42)	(1)	(159)
Exchange rate changes	1	27	3	—	31
As of December 31, 2024	(37)	(728)	(134)	(43)	(942)
Amortization	(1)	(120)	(42)	(1)	(164)
Transfer to assets held for sale (Note 4)	—	22	11	—	33
Exchange rate changes	(1)	(61)	(5)	—	(67)
As of December 31, 2025	(39)	(887)	(170)	(44)	(1,140)
Net book value	2	1,544	393	10	1,949

Schedule of Indefinite-Lived Intangible Assets, Net

Indefinite-lived intangible assets are as follows:

	Trademarks and Trade Names
	(In $ millions)
As of December 31, 2023	1,655
Impairment losses	(117)
Exchange rate changes	(43)
As of December 31, 2024	1,495
Impairment losses	(346)
Exchange rate changes	86
As of December 31, 2025	1,235

Schedule of Estimated Amortization Expense

Estimated amortization expense for the next five years is as follows:

	As of December 31, 2025
	(In $ millions)
2026	158
2027	158
2028	157
2029	153
2030	149