Other (Charges) Gains, Net (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		1 Months Ended		3 Months Ended				65 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Apr. 30, 2011 Acetyl Intermediates [Member]	Mar. 31, 2011 Acetyl Intermediates [Member]	Mar. 31, 2011 Pardies, France [Member] Acetyl Intermediates [Member]	Mar. 31, 2011 Spondon, UK [Member] Consumer Specialties [Member]	Mar. 31, 2012 Ticona Kelsterbach [Member] Advanced Engineered Materials [Member]	Mar. 31, 2011 Ticona Kelsterbach [Member] Advanced Engineered Materials [Member]	Mar. 31, 2012 Ticona Kelsterbach [Member] Advanced Engineered Materials [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits	$ 0	$ 4			$ 1	$ 2	$ 0	$ 0	$ 8
Commercial dispute resolutions, bankrupt supplier			1	16
Commerical dispute resolutions, other				$ 3