Earnings (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share

	Three Months Ended September 30,			Nine Months Ended September 30,
	2012		2011	2012		2011
	(In $ millions, except share and per share data)
Amounts Attributable to Celanese Corporation
Earnings (loss) from continuing operations	119		167	512		510
Earnings (loss) from discontinued operations	(2	)	—	(2	)	2
Net earnings (loss) available to common stockholders	117		167	510		512
Weighted-average shares - basic	159,123,808		156,194,459	157,936,063		156,147,982
Dilutive stock options	292,661		1,898,195	1,054,012		1,975,911
Dilutive restricted stock units	678,435		926,185	654,091		841,918
Weighted-average shares - diluted	160,094,904		159,018,839	159,644,166		158,965,811

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Securities not included in the computation of diluted net earnings per share as their effect would have been antidilutive are as follows:

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2012	2011	2012	2011
Stock options	30,032	—	15,016	60,208
Restricted stock units	92	1,008	5,328	336
Total	30,124	1,008	20,344	60,544