Segment Information (Schedule of Business Segments) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales		$ 10,940		$ 9,673	$ 8,537
Other (charges) gains, net		(68)		(8)	3
Operating profit (loss)		1,687		1,378	1,946
Equity in net earnings (loss) of affiliates		102		220	146
Depreciation and amortization		706		462	371
Capital expenditures	[1]	542		583	490
Goodwill and intangible assets, net		10,952		11,247
Total assets		26,597		26,272
Increase (decrease) in accrued capital expenditures		(26)		40	23
Engineered Materials
Segment Reporting Information [Line Items]
Net sales		6,149		4,024	2,718
Equity in net earnings (loss) of affiliates	[2]	88		209	133
Acetyl Chain
Segment Reporting Information [Line Items]
Net sales	[3]	4,791		5,649	5,819
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Equity in net earnings (loss) of affiliates		14		11	13
Operating Segments [Member] | Engineered Materials
Segment Reporting Information [Line Items]
Net sales		6,149		4,024	2,718
Other (charges) gains, net		(56)		(7)	6
Operating profit (loss)		1,083	[4]	429	411
Equity in net earnings (loss) of affiliates		83		202	126
Depreciation and amortization		462		226	144
Capital expenditures		237		178	154
Goodwill and intangible assets, net		10,525		10,826
Total assets		17,930		20,611
Operating Segments [Member] | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales	[5]	4,884		5,743	5,894
Other (charges) gains, net		(4)		0	1
Operating profit (loss)		1,109		1,447	1,875
Equity in net earnings (loss) of affiliates		6		7	7
Depreciation and amortization		217		213	210
Capital expenditures		207		352	311
Goodwill and intangible assets, net		427		421
Total assets		5,538		5,471
Corporate, Non-Segment [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales		0		0	0
Other (charges) gains, net		(8)		(1)	(4)
Operating profit (loss)		(505)		(498)	(340)
Equity in net earnings (loss) of affiliates		13		11	13
Depreciation and amortization		27		23	17
Capital expenditures		98		53	25
Goodwill and intangible assets, net		0		0
Total assets		3,129		190
Intersegment [Member]
Segment Reporting Information [Line Items]
Net sales		(93)		(94)	(75)
Other (charges) gains, net		0		0	0
Operating profit (loss)		0		0	0
Equity in net earnings (loss) of affiliates		0		0	0
Depreciation and amortization		0		0	0
Capital expenditures		0		0	0
Goodwill and intangible assets, net		0		0
Total assets		0		0
Intersegment [Member] | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		$ 93		$ 94	$ 75

[1] Includes a decrease in accrued capital expenditures of $26 million, an increase in accrued capital expenditures of $40 million and an increase in accrued capital expenditures of $23 million for the years ended December 31, 2023, 2022 and 2021, respectively.

[2] Engineered Materials includes an equity method investment with losses in excess of its carrying amount due to the Company's guarantee of various debt obligations under agreements with third parties related to an equity affiliate (Note 19). This equity method investment was recorded in Current Other liabilities (Note 10) as of December 31, 2023 and December 31, 2022.

[3] Excludes intersegment sales of $93 million, $94 million and $75 million for the years ended December 31, 2023, 2022 and 2021, respectively.

[4] Includes a $515 million gain related to the formation of the Nutrinova joint venture included in Gain (loss) on disposition of businesses and assets, net in the consolidated statements of operations (Note 4).

[5] Includes intersegment sales of $93 million, $94 million and $75 million for the years ended December 31, 2023, 2022 and 2021, respectively.