Other (Charges) Gains, Net - Schedule of Restructuring Reserve by Type of Cost (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023		Sep. 30, 2022	Sep. 30, 2023		Sep. 30, 2022
Restructuring Reserve [Roll Forward]
Additions	$ 7	[1]	$ 3	$ 40	[1]	$ 3
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning balance				6
Additions				40
Cash payments				(25)
Ending balance	21			21
Employee Severance | Engineered Materials
Restructuring Reserve [Roll Forward]
Beginning balance				4
Additions				34
Cash payments				(20)
Ending balance	18			18
Employee Severance | Acetyl Chain [Member]
Restructuring Reserve [Roll Forward]
Beginning balance				1
Additions				1
Cash payments				(1)
Ending balance	1			1
Employee Severance | Other Activities
Restructuring Reserve [Roll Forward]
Beginning balance				1
Additions				5
Cash payments				(4)
Ending balance	$ 2			$ 2

[1] Includes employee termination benefits primarily related to Company-wide business optimization projects during the three and nine months ended September 30, 2023.