Consolidated Statements of Operations (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012		Jun. 30, 2013	Jun. 30, 2012
Net sales	$ 1,653	$ 1,675		$ 3,258	$ 3,308
Cost of sales	(1,334)	(1,340)	[1]	(2,606)	(2,699)	[1]
Gross profit	319	335	[1]	652	609	[1]
Selling, general and administrative expenses	(113)	(115)	[1]	(219)	(241)	[1]
Amortization of intangible assets	(9)	(13)		(20)	(26)
Research and development expenses	(23)	(25)	[1]	(49)	(50)	[1]
Other (charges) gains, net	(3)	(3)		(7)	(3)
Foreign exchange gain (loss), net	(2)	(1)		(3)	0
Gain (loss) on disposition of businesses and assets, net	0	0		(1)	0
Operating profit (loss)	169	178	[1]	353	289	[1]
Equity in net earnings (loss) of affiliates	55	62		109	113
Interest expense	(44)	(45)		(87)	(90)
Refinancing expense	0	0		0	0
Interest income	1	0		1	1
Dividend income - cost investments	23	84		47	84
Other income (expense), net	4	(1)		3	1
Earnings (loss) from continuing operations before tax	208	278	[1]	426	398	[1]
Income tax (provision) benefit	(75)	(57)	[1]	(152)	16	[1]
Earnings (loss) from continuing operations	133	221	[1]	274	414	[1]
Earnings (loss) from operation of discontinued operations	0	0		2	0
Gain (loss) on disposition of discontinued operations	0	0		0	0
Income tax (provision) benefit from discontinued operations	0	0		(1)	0
Earnings (loss) from discontinued operations	0	0		1	0
Net earnings (loss)	133	221	[1]	275	414	[1]
Net (earnings) loss attributable to noncontrolling interests	0	0		0	0
Net earnings (loss) attributable to Celanese Corporation	133	221	[1]	275	414	[1]
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	133	221	[1]	274	414	[1]
Earnings (loss) from discontinued operations	0	0		1	0
Net earnings (loss)	$ 133	$ 221	[1]	$ 275	$ 414	[1]
Earnings (loss) per common share - basic
Continuing operations	$ 0.83	$ 1.40	[1]	$ 1.71	$ 2.63	[1]
Discontinued operations	$ 0.00	$ 0.00	[1]	$ 0.01	$ 0.00	[1]
Net earnings (loss) - basic	$ 0.83	$ 1.40	[1]	$ 1.72	$ 2.63	[1]
Earnings (loss) per common share - diluted
Continuing operations	$ 0.83	$ 1.38	[1]	$ 1.71	$ 2.60	[1]
Discontinued operations	$ 0.00	$ 0.00	[1]	$ 0.01	$ 0.00	[1]
Net earnings (loss) - diluted	$ 0.83	$ 1.38	[1]	$ 1.72	$ 2.60	[1]
Weighted average shares - basic	159,676,462	158,163,378		159,679,408	157,370,137
Weighted average shares - diluted	160,142,156	159,778,255		160,138,959	159,446,743

[1] As Adjusted (Note 1)