Earnings (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share

	Three Months Ended March 31,
	2013	2012
		As Adjusted (Note 1)
	(In $ millions, except share and per share data)
Amounts Attributable to Celanese Corporation
Earnings (loss) from continuing operations	141	193
Earnings (loss) from discontinued operations	1	—
Net earnings (loss) available to common stockholders	142	193
Weighted average shares - basic	159,682,386	156,576,896
Dilutive stock options	240,507	1,855,015
Dilutive restricted stock units	278,743	683,321
Weighted average shares - diluted	160,201,636	159,115,232

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 March 31,
	2013	2012
Stock options	93,423	—
Restricted stock units	—	—
Total	93,423	—