Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share

	Year Ended December 31,
	2012		2011	2010
	(In $ millions, except share data)
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	609		606	426
Earnings (loss) from discontinued operations	(4	)	1	(49	)
Net earnings (loss)	605		607	377
Cumulative preferred stock dividends	—		—	(3	)
Net earnings (loss) available to common stockholders	605		607	374
Weighted average shares - basic	158,325,442		156,204,077	154,564,136
Dilutive stock options	848,439		1,930,072	1,828,746
Dilutive restricted stock units	622,433		813,685	425,385
Assumed conversion of preferred stock	—		—	1,553,925
Weighted average shares - diluted	159,796,314		158,947,834	158,372,192

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:

	Year Ended December 31,
	2012	2011	2010
Stock options	25,906	69,395	575,266
Restricted stock units	3,996	735	74,166
Convertible preferred stock	—	—	—
Total	29,902	70,130	649,432