Consolidated Statements of Operations (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012		Sep. 30, 2013	Sep. 30, 2012
Net sales	$ 1,636	$ 1,609		$ 4,894	$ 4,917
Cost of sales	(1,290)	(1,281)	[1]	(3,896)	(3,980)	[1]
Gross profit	346	328	[1]	998	937	[1]
Selling, general and administrative expenses	(97)	(113)	[1]	(316)	(354)	[1]
Amortization of intangible assets	(6)	(12)		(26)	(38)
Research and development expenses	(24)	(23)	[1]	(73)	(73)	[1]
Other (charges) gains, net	(4)	2		(11)	(1)
Foreign exchange gain (loss), net	(2)	(4)		(5)	(4)
Gain (loss) on disposition of businesses and assets, net	(2)	(2)		(3)	(2)
Operating profit (loss)	211	176	[1]	564	465	[1]
Equity in net earnings (loss) of affiliates	41	50		150	163
Interest expense	(43)	(44)		(130)	(134)
Refinancing expense	(1)	0		(1)	0
Interest income	0	0		1	1
Dividend income - cost investments	22	1		69	85
Other income (expense), net	(2)	3		1	4
Earnings (loss) from continuing operations before tax	228	186	[1]	654	584	[1]
Income tax (provision) benefit	(57)	(57)	[1]	(209)	(41)	[1]
Earnings (loss) from continuing operations	171	129	[1]	445	543	[1]
Earnings (loss) from operation of discontinued operations	1	(3)		3	(3)
Gain (loss) on disposition of discontinued operations	0	0		0	0
Income tax (provision) benefit from discontinued operations	0	1		(1)	1
Earnings (loss) from discontinued operations	1	(2)		2	(2)
Net earnings (loss)	172	127	[1]	447	541	[1]
Net (earnings) loss attributable to noncontrolling interests	0	0		0	0
Net earnings (loss) attributable to Celanese Corporation	172	127	[1]	447	541	[1]
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	171	129	[1]	445	543	[1]
Earnings (loss) from discontinued operations	1	(2)		2	(2)
Net earnings (loss)	$ 172	$ 127	[1]	$ 447	$ 541	[1]
Earnings (loss) per common share - basic
Continuing operations	$ 1.08	$ 0.81	[1]	$ 2.80	$ 3.43	[1]
Discontinued operations	$ 0.01	$ (0.01)	[1]	$ 0.01	$ (0.01)	[1]
Net earnings (loss) - basic	$ 1.09	$ 0.80	[1]	$ 2.81	$ 3.42	[1]
Earnings (loss) per common share - diluted
Continuing operations	$ 1.07	$ 0.80	[1]	$ 2.79	$ 3.40	[1]
Discontinued operations	$ 0.01	$ (0.01)	[1]	$ 0.01	$ (0.01)	[1]
Net earnings (loss) - diluted	$ 1.08	$ 0.79	[1]	$ 2.80	$ 3.39	[1]
Weighted average shares - basic	158,501,075	159,158,280		159,282,314	157,970,535
Weighted average shares - diluted	159,095,531	160,129,376		159,846,593	159,678,638

[1] As Adjusted (Note 1)