Earnings (Loss) Per Share

12 Months Ended

Dec. 31, 2011

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

Earnings (Loss) Per Share

	Year Ended December 31,
	2011		2010				2009
	Basic	Diluted	Basic		Diluted		Basic		Diluted
	(In $ millions, except share and per share data)
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	606	606	426		426		494		494
Earnings (loss) from discontinued operations	1	1	(49	)	(49	)	4		4
Net earnings (loss)	607	607	377		377		498		498
Cumulative preferred stock dividends	—	—	(3	)	—		(10	)	—
Net earnings (loss) available to common stockholders	607	607	374		377		488		498
Weighted-average shares - basic	156,204,077	156,204,077	154,564,136		154,564,136		143,688,749		143,688,749
Dilutive stock options		1,930,072			1,828,746				1,167,922
Dilutive restricted stock units		813,685			425,385				172,246
Assumed conversion of preferred stock		—			1,553,925				12,086,604
Weighted-average shares - diluted	156,204,077	158,947,834	154,564,136		158,372,192		143,688,749		157,115,521
Per share
Earnings (loss) from continuing operations	3.88	3.81	2.73		2.69		3.37		3.14
Earnings (loss) from discontinued operations	0.01	0.01	(0.31	)	(0.31	)	0.03		0.03
Net earnings (loss)	3.89	3.82	2.42		2.38		3.40		3.17

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,
	2011	2010	2009
Stock options	69,395	575,266	2,433,515
Restricted stock units	735	74,166	302,635
Convertible preferred stock	—	—	—
Total	70,130	649,432	2,736,150