Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012		Jun. 30, 2013	Jun. 30, 2012
Net earnings (loss)	$ 133	$ 221	[1]	$ 275	$ 414	[1]
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	0	0		0	0
Foreign currency translation	26	(50)		(5)	(24)
Gain (loss) on interest rate swaps	2	0		3	1
Pension and postretirement benefits	0	(2)	[1]	0	(6)	[1]
Total other comprehensive income (loss), net of tax	28	(52)	[1]	(2)	(29)	[1]
Total comprehensive income (loss), net of tax	161	169	[1]	273	385	[1]
Comprehensive (income) loss attributable to noncontrolling interests	0	0		0	0
Comprehensive income (loss) attributable to Celanese Corporation	$ 161	$ 169	[1]	$ 273	$ 385	[1]

[1] As Adjusted (Note 1)