Consolidated Statements of Operations (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2012	May 31, 2011	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales				$ 6,510	$ 6,418	$ 6,763
Cost of sales				(5,145)	(5,237)	(5,346)
Gross profit				1,365	1,181	1,417
Selling, general and administrative expenses				(311)	(830)	(805)
Amortization of intangible assets				(32)	(51)	(62)
Research and development expenses				(85)	(104)	(98)
Other (charges) gains, net				(158)	(14)	(48)
Foreign exchange gain (loss), net				(6)	(4)	0
Gain (loss) on disposition of businesses and assets, net				735	(3)	(2)
Operating profit (loss)				1,508	175	402
Equity in net earnings (loss) of affiliates				180	242	192
Interest expense				(172)	(185)	(221)
Refinancing expense	(3)	(3)	(1)	(1)	(3)	(3)
Interest income				1	2	3
Dividend income - cost investments				93	85	80
Other income (expense), net				0	5	14
Earnings (loss) from continuing operations before tax				1,609	321	467
Income tax (provision) benefit				(508)	55	(41)
Earnings (loss) from continuing operations				1,101	376	426
Earnings (loss) from operation of discontinued operations				0	(6)	2
Gain (loss) on disposition of discontinued operations				0	0	0
Income tax (provision) benefit from discontinued operations				0	2	(1)
Earnings (loss) from discontinued operations				0	(4)	1
Net earnings (loss)				1,101	372	427
Net (earnings) loss attributable to noncontrolling interests				0	0	0
Net earnings (loss) attributable to Celanese Corporation				1,101	372	427
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations				1,101	376	426
Earnings (loss) from discontinued operations				0	(4)	1
Net earnings (loss)				$ 1,101	$ 372	$ 427
Earnings (loss) per common share - basic
Continuing operations				$ 6.93	$ 2.37	$ 2.72
Discontinued operations				$ 0	$ (0.02)	$ 0.01
Net earnings (loss) - basic				$ 6.93	$ 2.35	$ 2.73
Earnings (loss) per common share - diluted
Continuing operations				$ 6.91	$ 2.35	$ 2.68
Discontinued operations				$ 0	$ (0.02)	$ 0.01
Net earnings (loss) - diluted				$ 6.91	$ 2.33	$ 2.69
Weighted average shares - basic				158,801,150	158,359,914	156,226,526
Weighted average shares - diluted				159,334,219	159,830,786	158,970,283