Goodwill and Intangible Assets, net (Tables)

3 Months Ended

Mar. 31, 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
Exchange rate changes	(22)	—	(10)	(32)
As of March 31, 2021(1)	746	149	239	1,134

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(1)There were no accumulated impairment losses as of March 31, 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
Exchange rate changes	—	(21)	—	—	(21)
As of March 31, 2021	44	703	45	56	848
Accumulated Amortization
As of December 31, 2020	(38)	(555)	(40)	(39)	(672)
Amortization	—	(4)	(2)	—	(6)
Exchange rate changes	—	17	2	—	19
As of March 31, 2021	(38)	(542)	(40)	(39)	(659)
Net book value	6	161	5	17	189

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	(3)
As of March 31, 2021	119

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	21
2023	19
2024	18
2025	18
2026	18