Segment Information (Schedule of Business Segments) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales		$ 2,538	$ 1,798
Other (charges) gains, net (Note 14)		(1)	6
Operating profit (loss)		531	326
Equity in net earnings (loss) of affiliates		56	29
Depreciation and amortization		106	90
Capital expenditures	[1]	114	73
Goodwill and intangible assets, net		2,111		$ 2,147
Total assets		12,426		11,975
Increase (decrease) in accrued capital expenditures		(23)	(19)
Engineered Materials
Segment Reporting Information [Line Items]
Net sales		910	645
Acetate Tow
Segment Reporting Information [Line Items]
Net sales		125	119
Acetyl Chain
Segment Reporting Information [Line Items]
Net sales	[2]	1,503	1,034
Operating Segments [Member] | Engineered Materials
Segment Reporting Information [Line Items]
Net sales		910	645
Other (charges) gains, net (Note 14)		(1)	7
Operating profit (loss)		124	130
Equity in net earnings (loss) of affiliates		49	25
Depreciation and amortization		46	35
Capital expenditures		30	23
Goodwill and intangible assets, net		1,684		1,714
Total assets		5,576		5,363
Operating Segments [Member] | Acetate Tow
Segment Reporting Information [Line Items]
Net sales		125	119
Other (charges) gains, net (Note 14)		0	0
Operating profit (loss)		4	16
Equity in net earnings (loss) of affiliates		0	0
Depreciation and amortization		11	10
Capital expenditures		8	11
Goodwill and intangible assets, net		154		154
Total assets		1,109		1,098
Operating Segments [Member] | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		1,538	1,056
Other (charges) gains, net (Note 14)		0	0
Operating profit (loss)		499	251
Equity in net earnings (loss) of affiliates		4	2
Depreciation and amortization		45	41
Capital expenditures		62	33
Goodwill and intangible assets, net		273		279
Total assets		4,504		4,428
Corporate, Non-Segment [Member] | Other Activities
Segment Reporting Information [Line Items]
Net sales		0	0
Other (charges) gains, net (Note 14)		0	(1)
Operating profit (loss)		(96)	(71)
Equity in net earnings (loss) of affiliates		3	2
Depreciation and amortization		4	4
Capital expenditures		14	6
Goodwill and intangible assets, net		0		0
Total assets		1,237		1,086
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	[3]	(35)	(22)
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 [Member] | Acetyl Chain
Segment Reporting Information [Line Items]
Net sales		$ 35	$ 22

[1] Includes a decrease in accrued capital expenditures of $23 million and $19 million for the three months ended March 31, 2022 and 2021, respectively.

[2] Excludes intersegment sales of $35 million and $22 million for the three months ended March 31, 2022 and 2021, respectively.

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