Other (Charges) Gains, Net - Schedule of Restructuring Reserve by Type of Cost (Details) - Employee Severance $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Restructuring Reserve [Roll Forward]
Reserve as of the beginning of the period	$ 18
Additions	59
Cash payments	(23)
Other changes	(2)
Reserve as of the end of the period	52
Engineered Materials
Restructuring Reserve [Roll Forward]
Reserve as of the beginning of the period	13
Additions	51
Cash payments	(16)
Other changes	(2)
Reserve as of the end of the period	46
Acetyl Chain [Member]
Restructuring Reserve [Roll Forward]
Reserve as of the beginning of the period	2
Additions	1
Cash payments	(2)
Other changes	0
Reserve as of the end of the period	1
Other Activities
Restructuring Reserve [Roll Forward]
Reserve as of the beginning of the period	3
Additions	7
Cash payments	(5)
Other changes	0
Reserve as of the end of the period	$ 5