Segment Information - Schedule of Business Segments (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2023		Jun. 30, 2022		Jun. 30, 2023		Jun. 30, 2022		Dec. 31, 2022
Segment Reporting Information [Line Items]
Net sales		$ 2,795		$ 2,486		$ 5,648		$ 5,024
Other (charges) gains, net (Note 14)		(10)		1		(33)		0
Operating profit (loss)		335		483		586		1,014
Equity in net earnings (loss) of affiliates		23		60		38		116
Depreciation and amortization		172		103		344		209
Capital expenditures		152	[1]	132	[1]	260	[2]	246	[2]
Goodwill and intangible assets, net		11,070				11,070				$ 11,247
Total assets		25,649				25,649				26,272
Increase (decrease) in accrued capital expenditures		7		8		(49)		(15)
Engineered Materials
Segment Reporting Information [Line Items]
Net sales		1,585		948		3,215		1,858
Acetyl Chain
Segment Reporting Information [Line Items]
Net sales	[3]	1,210		1,538		2,433		3,166
Operating Segments | Engineered Materials
Segment Reporting Information [Line Items]
Net sales		1,585		948		3,215		1,858
Other (charges) gains, net (Note 14)		(8)		1		(29)
Operating profit (loss)		158		166		270		290
Equity in net earnings (loss) of affiliates		18		53		29		102
Depreciation and amortization		112		45		224		91
Capital expenditures		58		35		103		65
Goodwill and intangible assets, net		10,646				10,646				10,826
Total assets		18,146				18,146				20,611
Operating Segments | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		1,233		1,559		2,483		3,211
Other (charges) gains, net (Note 14)		0		0		(1)
Operating profit (loss)		295		428		573		931
Equity in net earnings (loss) of affiliates		2		3		3		7
Depreciation and amortization		54		52		108		108
Capital expenditures		67		87		118		157
Goodwill and intangible assets, net		424				424				421
Total assets		5,589				5,589				5,471
Corporate, Non-Segment | Other Activities
Segment Reporting Information [Line Items]
Net sales		0		0		0		0
Other (charges) gains, net (Note 14)		(2)		0		(3)
Operating profit (loss)		(118)		(111)		(257)		(207)
Equity in net earnings (loss) of affiliates		3		4		6		7
Depreciation and amortization		6		6		12		10
Capital expenditures		27		10		39		24
Goodwill and intangible assets, net		0				0				0
Total assets		1,914				1,914				190
Eliminations
Segment Reporting Information [Line Items]
Net sales		(23)	[4]	(21)	[4]	(50)	[5]	(45)	[5]
Other (charges) gains, net (Note 14)		0		0		0
Operating profit (loss)		0		0		0		0
Equity in net earnings (loss) of affiliates		0		0		0		0
Depreciation and amortization		0		0		0		0
Capital expenditures		0		0		0		0
Goodwill and intangible assets, net		0				0				0
Total assets		0				0				$ 0
Eliminations | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		$ 23		$ 21		$ 50		$ 45

[1] Includes an increase in accrued capital expenditures of $7 million and $8 million for the three months ended June 30, 2023 and 2022, respectively.

[2] Includes a decrease in accrued capital expenditures of $49 million and $15 million for the six months ended June 30, 2023 and 2022, respectively.

[3] Excludes intersegment sales of $23 million and $21 million for the three months ended June 30, 2023 and 2022, respectively. Excludes intersegment sales of $50 million and $45 million for the six months ended June 30, 2023 and 2022, respectively.

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

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