Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Goodwill [Line Items]
As of December 31, 2021	$ 1,412
Acquisitions (Note 3)	(5)	[1]
Exchange rate changes	(113)
As of September 30, 2022(2)	1,294	[2]
Goodwill, impaired, accumulated impairment loss	0
Goodwill, impairment loss	0
Engineered Materials
Goodwill [Line Items]
As of December 31, 2021	1,030
Acquisitions (Note 3)	(5)
Exchange rate changes	(80)
As of September 30, 2022(2)	945	[2]
Acetate Tow
Goodwill [Line Items]
As of December 31, 2021	149
Acquisitions (Note 3)	0
Exchange rate changes	(2)
As of September 30, 2022(2)	147	[2]
Acetyl Chain
Goodwill [Line Items]
As of December 31, 2021	233
Acquisitions (Note 3)	0
Exchange rate changes	(31)
As of September 30, 2022(2)	$ 202	[2]

[1] Related to the acquisition of Santoprene.

[2] There were no accumulated impairment losses as of September 30, 2022.