Investments in Affiliates (Schedule of Equity Securities Without Readily Determinable Fair Value) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments in and Advances to Affiliates [Line Items]
Carrying Value	$ 170	$ 170
Dividend income - equity investments	128	126	$ 133
Acetyl Chain
Investments in and Advances to Affiliates [Line Items]
Carrying Value	165	165
Dividend income - equity investments	127	125	132
Other Activities
Investments in and Advances to Affiliates [Line Items]
Carrying Value	5	5
Dividend income - equity investments	$ 1	$ 1	$ 1