Other (Charges) Gains, Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other (Charges) Gains, Net [Line Items]
Employee termination benefits	$ (10)	$ (1)	$ (14)	$ (3)
Other	$ 0	3	$ 0	3
Advanced Engineered Materials [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits				(1)
Roussillon, France and Tarragona, Spain [Member] | Acetyl Intermediates [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits				$ (2)
Other		$ 3