Segment Information - Schedule of Business Segments (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net sales		$ 2,611	$ 2,853
Other (charges) gains, net (Note 14)		(14)	(23)
Operating profit (loss)		210	251
Equity in net earnings (loss) of affiliates		55	15
Depreciation and amortization		221	172
Capital expenditures	[1]	105	108
Goodwill and intangible assets, net		10,828		$ 10,952
Total assets		26,033		26,597
Increase (decrease) in accrued capital expenditures		(32)	(56)
Engineered Materials
Segment Reporting Information [Line Items]
Net sales		1,378	1,630
Acetyl Chain
Segment Reporting Information [Line Items]
Net sales	[2]	1,233	1,223
Operating Segments | Engineered Materials
Segment Reporting Information [Line Items]
Net sales		1,378	1,630
Other (charges) gains, net (Note 14)		(11)	(21)
Operating profit (loss)		89	112
Equity in net earnings (loss) of affiliates		49	11
Depreciation and amortization		147	112
Capital expenditures		37	45
Goodwill and intangible assets, net		10,407		10,525
Total assets		17,620		17,930
Operating Segments | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		1,261	1,250
Other (charges) gains, net (Note 14)		0	(1)
Operating profit (loss)		254	278
Equity in net earnings (loss) of affiliates		2	1
Depreciation and amortization		57	54
Capital expenditures		40	51
Goodwill and intangible assets, net		421		427
Total assets		5,520		5,538
Corporate, Non-Segment | Other Activities
Segment Reporting Information [Line Items]
Net sales		0	0
Other (charges) gains, net (Note 14)		(3)	(1)
Operating profit (loss)		(133)	(139)
Equity in net earnings (loss) of affiliates		4	3
Depreciation and amortization		17	6
Capital expenditures		28	12
Goodwill and intangible assets, net		0		0
Total assets		2,893		3,129
Eliminations
Segment Reporting Information [Line Items]
Net sales	[3]	(28)	(27)
Other (charges) gains, net (Note 14)		0	0
Operating profit (loss)		0	0
Equity in net earnings (loss) of affiliates		0	0
Depreciation and amortization		0	0
Capital expenditures		0	0
Goodwill and intangible assets, net		0		0
Total assets		0		$ 0
Eliminations | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		$ 28	$ 27

[1] Includes a decrease in accrued capital expenditures of $32 million and $56 million for the three months ended March 31, 2024 and 2023, respectively.

[2] Excludes intersegment sales of $28 million and $27 million for the three months ended March 31, 2024 and 2023, respectively.

[3] Includes intersegment sales primarily related to the Acetyl Chain.