Other (Charges) Gains, Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014	Sep. 30, 2015		Sep. 30, 2014
Other (Charges) Gains, Net [Line Items]
Commercial disputes	$ 3		$ 21	$ 2		$ 21
Employee termination benefits	(6)	[1]	(3)	(20)	[1]	(6)
Other	0		1	0		4
Acetyl Intermediates [Member]
Other (Charges) Gains, Net [Line Items]
Commercial disputes			6
Consumer Specialties [Member]
Other (Charges) Gains, Net [Line Items]
Commercial disputes			$ 15
Roussillon, France and Tarragona, Spain [Member] | Acetyl Intermediates [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits						(4)
Other						$ 3
Cost of Sales [Member] | Meredosia, IL [Member] | Industrial Specialties [Member]
Other (Charges) Gains, Net [Line Items]
Accelerated Depreciation	(6)
Cost of Sales [Member] | Tarragona, Spain [Member] | Industrial Specialties [Member]
Other (Charges) Gains, Net [Line Items]
Accelerated Depreciation	(4)
Minimum [Member] | Meredosia, IL [Member] | Industrial Specialties [Member]
Other (Charges) Gains, Net [Line Items]
Restructuring and Related Cost, Expected Cost	(20)			(20)
Maximum [Member] | Meredosia, IL [Member] | Industrial Specialties [Member]
Other (Charges) Gains, Net [Line Items]
Restructuring and Related Cost, Expected Cost	$ (25)			$ (25)

[1] Includes $1 million of special termination benefits included in Benefit obligations in the unaudited consolidated balance sheets and is included in the Company's Industrial Specialties segment.