Consolidated Statements of Equity (USD $) In Millions, except Share data	Total		Total Celanese Corporation Stockholders' Equity [Member]	Series A Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss), Net [Member]	Noncontrolling Interests [Member]
Balance as of the beginning of the period at Dec. 31, 2010				$ 0	$ (829)	$ 574	$ 1,271	$ (90)	$ 0
Balance as of the beginning of the period, shares at Dec. 31, 2010				155,759,293	22,269,278
Stock option exercises, shares				842,342
Stock option exercises, net of tax	20			0		36
Purchases of treasury stock, shares				(652,016)
Purchases of treasury stock				0
Stock awards, shares				514,192
Stock awards				0
Purchases of treasury stock, shares	652,016				652,016
Purchases of treasury stock, including related fees	(31)				(31)
Retirement of treasury stock, shares					0
Retirement of treasury stock					0	0
Stock-based compensation, net of tax						17
Net earnings (loss) attributable to Celanese Corporation	427						427
Series A common stock dividends							(34)
Other comprehensive income (loss), net of tax	0							0
Net earnings (loss) attributable to noncontrolling interests	0								0
Balance as of the end of the period at Dec. 31, 2011	1,341			0	(860)	627	1,664	(90)	0
Total Celanese Corporation stockholders' equity at Dec. 31, 2011			1,341
Balance as of the end of the period, shares at Dec. 31, 2011				156,463,811	22,921,294
Stock option exercises, shares				3,751,825
Stock option exercises, net of tax	110			0		92
Purchases of treasury stock, shares				(1,065,542)
Purchases of treasury stock				0
Stock awards, shares				492,307
Stock awards				0
Purchases of treasury stock, shares	1,059,719	[1]			1,065,542
Purchases of treasury stock, including related fees	(45)				(45)
Retirement of treasury stock, shares					0
Retirement of treasury stock					0	0
Stock-based compensation, net of tax						12
Net earnings (loss) attributable to Celanese Corporation	372						372
Series A common stock dividends							(43)
Other comprehensive income (loss), net of tax	1							1
Net earnings (loss) attributable to noncontrolling interests	0								0
Balance as of the end of the period at Dec. 31, 2012	1,730			0	(905)	731	1,993	(89)	0
Total Celanese Corporation stockholders' equity at Dec. 31, 2012	1,730		1,730
Balance as of the end of the period, shares at Dec. 31, 2012				159,642,401	23,986,836
Stock option exercises, shares	284,000			283,682
Stock option exercises, net of tax	6			0		11
Purchases of treasury stock, shares				(3,192,201)
Purchases of treasury stock				0
Stock awards, shares				205,946
Stock awards				0
Purchases of treasury stock, shares	3,186,180	[1]			3,192,201
Purchases of treasury stock, including related fees	(164)				(164)
Retirement of treasury stock, shares					(18,250,900)
Retirement of treasury stock					708	(708)
Stock-based compensation, net of tax						19
Net earnings (loss) attributable to Celanese Corporation	1,101						1,101
Series A common stock dividends							(83)
Other comprehensive income (loss), net of tax	85							85
Net earnings (loss) attributable to noncontrolling interests	0								0
Balance as of the end of the period at Dec. 31, 2013	2,699			0	(361)	53	3,011	(4)	0
Total Celanese Corporation stockholders' equity at Dec. 31, 2013	$ 2,699		$ 2,699
Balance as of the end of the period, shares at Dec. 31, 2013				156,939,828	8,928,137

[1] The years ended December 31, 2013 and 2012 exclude 6,021 shares and 5,823 shares, respectively, withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock awards. Restricted stock awards are considered outstanding at the time of issuance and therefore, the shares withheld are treated as treasury shares.