Other (Charges) Gains, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other (Charges) Gains, Net [Line Items]
ARO adjustment	$ (3)	$ 0	$ (3)	$ 0
Employee termination benefits	1	1	3	3
Kelsterbach plant relocation	0	2	0	4
Acetyl Intermediates and Industrial Specialties [Member] | Business Optimization [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits				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]
ARO adjustment	3
Employee termination benefits			2
Kelsterbach, Germany [Member] | Advanced Engineered Materials [Member]
Other (Charges) Gains, Net [Line Items]
Kelsterbach plant relocation				$ 4