Other (Charges) Gains, Net (Tables)

12 Months Ended

Dec. 31, 2020

Restructuring and Related Activities [Abstract]

Schedule of Other (Charges) Gains, Net

	Year Ended December 31,
	2020	2019	2018
	(In $ millions)
Restructuring (Note 4)	(20)	(23)	(4)
Asset impairments (Note 4)	(31)	(83)	—
Plant/office closures	7	(4)	13
Commercial disputes	6	(4)	—
European Commission investigation	(2)	(89)	—
Other	1	—	—
Total	(39)	(203)	9

Schedule of Restructuring Reserve

The changes in the restructuring liabilities by business segment are as follows:

	Engineered Materials	Acetate Tow	Acetyl Chain	Other	Total
	(In $ millions)
Employee Termination Benefits
As of December 31, 2018	—	2	2	—	4
Additions	10	4	1	9	24
Cash payments	(5)	(3)	(2)	(4)	(14)
Other changes	—	—	(1)	—	(1)
As of December 31, 2019	5	3	—	5	13
Additions	12	—	1	10	23
Cash payments	(7)	(2)	(1)	(12)	(22)
Other changes	(2)	—	—	(1)	(3)
As of December 31, 2020	8	1	—	2	11