Goodwill and Intangible Assets, Net (Schedule of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Goodwill
Exchange rate changes	$ 10
Goodwill	787	777
Accumulated impairment losses	0	0
Net book value	787	777
Advanced Engineered Materials [Member]
Goodwill
Exchange rate changes	3
Goodwill	300	297
Accumulated impairment losses	0	0
Net book value	300	297
Consumer Specialties [Member]
Goodwill
Exchange rate changes	2
Goodwill	251	249
Accumulated impairment losses	0	0
Net book value	251	249
Industrial Specialties [Member]
Goodwill
Exchange rate changes	0
Goodwill	42	42
Accumulated impairment losses	0	0
Net book value	42	42
Acetyl Intermediates [Member]
Goodwill
Exchange rate changes	5
Goodwill	194	189
Accumulated impairment losses	0	0
Net book value	$ 194	$ 189