Goodwill and Intangible Assets, net (Tables)

9 Months Ended

Sep. 30, 2021

Indefinite-lived Intangible Assets [Line Items]

Schedule of Goodwill [Table Text Block]

	Engineered Materials	Acetate Tow	Acetyl Chain	Total
	(In $ millions)
As of December 31, 2020	768	149	249	1,166
Acquisitions	4	—	2	6
Exchange rate changes	(28)	—	(13)	(41)
As of September 30, 2021(1)	744	149	238	1,131

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(1)There were no accumulated impairment losses as of September 30, 2021.

Schedule of Finite-Lived Intangible Assets [Table Text Block]

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, 2020	44	724	45	56	869
Acquisitions	—	8	—	—	8
Exchange rate changes	—	(26)	(1)	—	(27)
As of September 30, 2021	44	706	44	56	850
Accumulated Amortization
As of December 31, 2020	(38)	(555)	(40)	(39)	(672)
Amortization	(1)	(13)	(2)	(1)	(17)
Exchange rate changes	—	23	1	—	24
As of September 30, 2021	(39)	(545)	(41)	(40)	(665)
Net book value	5	161	3	16	185

Schedule of Indefinite-Lived Intangible Assets [Table Text Block]

Indefinite-lived intangible assets are as follows:

	Trademarks and Trade Names
	(In $ millions)
As of December 31, 2020	122
Exchange rate changes	(4)
As of September 30, 2021	118

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated amortization expense for the succeeding five fiscal years is as follows:

	(In $ millions)
2022	22
2023	20
2024	19
2025	19
2026	18