Other (Charges) Gains, Net - Schedule of Restructuring Reserve by Type of Cost (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023		Jun. 30, 2022	Jun. 30, 2023		Jun. 30, 2022
Restructuring Reserve [Roll Forward]
Additions	$ 10	[1]	$ (1)	$ 33	[1]	$ 0
Employee Severance
Restructuring Reserve [Roll Forward]
Beginning balance				6
Additions				33
Cash payments				(18)
Ending balance	21			21
Employee Severance | Engineered Materials
Restructuring Reserve [Roll Forward]
Beginning balance				4
Additions				29
Cash payments				(14)
Ending balance	19			19
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				3
Cash payments				(3)
Ending balance	$ 1			$ 1

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