Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Goodwill [Line Items]
As of December 31, 2023	$ 6,977
Exchange rate changes	(78)
As of June 30, 2024(1)	6,899	[1]
Goodwill, impaired, accumulated impairment loss	0
Engineered Materials
Goodwill [Line Items]
As of December 31, 2023	6,602
Exchange rate changes	(71)
As of June 30, 2024(1)	6,531	[1]
Acetyl Chain
Goodwill [Line Items]
As of December 31, 2023	375
Exchange rate changes	(7)
As of June 30, 2024(1)	$ 368	[1]

[1] There were no accumulated impairment losses as of June 30, 2024.