Goodwill and Intangible Assets, Net - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2024 USD ($)
Goodwill [Line Items]
As of December 31, 2023	$ 6,977
Exchange rate changes	20
As of September 30, 2024(1)	6,997	[1]
Goodwill, impaired, accumulated impairment loss	0
Engineered Materials
Goodwill [Line Items]
As of December 31, 2023	6,602
Exchange rate changes	17
As of September 30, 2024(1)	6,619	[1]
Acetyl Chain
Goodwill [Line Items]
As of December 31, 2023	375
Exchange rate changes	3
As of September 30, 2024(1)	$ 378	[1]

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