Goodwill and Intangible Assets, net (Schedule of Goodwill) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Line Items]
As of December 31, 2021	$ 1,412
Acquisitions (Note 3)	2	[1]
Exchange rate changes	(18)
As of March 31, 2019	1,396	[2]
Goodwill, Impaired, Accumulated Impairment Loss	0
Engineered Materials
Goodwill [Line Items]
As of December 31, 2021	1,030
Acquisitions (Note 3)	2
Exchange rate changes	(13)
As of March 31, 2019	1,019	[2]
Acetate Tow
Goodwill [Line Items]
As of December 31, 2021	149
Acquisitions (Note 3)	0
Exchange rate changes	0
As of March 31, 2019	149	[2]
Acetyl Chain
Goodwill [Line Items]
As of December 31, 2021	233
Acquisitions (Note 3)	0
Exchange rate changes	(5)
As of March 31, 2019	$ 228	[2]

[1] Represents goodwill related to the acquisition of Santoprene.

[2] There were no accumulated impairment losses as of March 31, 2022.