Goodwill and Intangible Assets, Net (Schedule of Goodwill) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020
Goodwill
Goodwill, beginning balance	$ 1,166		$ 1,074
Acquisitions	301		30
Exchange rate changes	(55)		62
Goodwill, ending balance	1,412	[1]	1,166
Accumulated impairment losses	0
Goodwill, Impairment Loss	0
Engineered Materials [Member]
Goodwill
Goodwill, beginning balance	768		727
Acquisitions	299	[2]	0
Exchange rate changes	(37)		41
Goodwill, ending balance	1,030	[1]	768
Acetate Tow [Member]
Goodwill
Goodwill, beginning balance	149		148
Acquisitions	0		0
Exchange rate changes	0		1
Goodwill, ending balance	149	[1]	149
Acetyl Chain [Member]
Goodwill
Goodwill, beginning balance	249		199
Acquisitions	2		30	[3]
Exchange rate changes	(18)		20
Goodwill, ending balance	$ 233	[1]	$ 249

[1] There were no accumulated impairment losses as of December 31, 2021.

[2] Primarily represents goodwill related to the acquisition of Santoprene.

[3] Represents goodwill related to the acquisition of Nouryon's redispersible polymer powders business offered under the Elotex® brand ("Elotex").