Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents (variable interest entity restricted - 2015: $1; 2014: $1)	$ 851	$ 780
Trade receivables - third party and affiliates (net of allowance for doubtful accounts - 2015: $6; 2014: $9)	804	801
Non-trade receivables, net	208	241
Inventories	744	782
Deferred income taxes	15	29
Marketable securities, at fair value	29	32
Other assets	45	33
Total current assets	2,696	2,698
Investments in affiliates	804	876
Property, plant and equipment (net of accumulated depreciation - 2015: $1,810; 2014: $1,816; variable interest entity restricted - 2015: $620; 2014: $535)	3,685	3,733
Deferred income taxes	275	253
Other assets (variable interest entity restricted - 2015: $29; 2014: $24)	343	377
Goodwill	700	749
Intangible assets (net of accumulated amortization - 2015: $517; 2014: $556)	123	132
Total assets	8,626	8,818
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	128	137
Trade payables - third party and affiliates	664	757
Other liabilities	342	432
Deferred income taxes	6	7
Income taxes payable	55	5
Total current liabilities	1,195	1,338
Long-term debt	2,536	2,608
Deferred income taxes	130	141
Uncertain tax positions	162	159
Benefit obligations	1,144	1,211
Other liabilities	260	283
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value, 100,000,000 shares authorized (2015 and 2014: 0 issued and outstanding)	0	0
Treasury stock, at cost (2015 and 2014: 13,266,625 shares)	(611)	(611)
Additional paid-in capital	105	103
Retained earnings	3,689	3,491
Accumulated other comprehensive income (loss), net	(322)	(165)
Total Celanese Corporation stockholders' equity	2,861	2,818
Noncontrolling interests	338	260
Total equity	3,199	3,078
Total liabilities and equity	8,626	8,818
Series A common stock, $0.0001 par value, 400,000,000 shares authorized (2015: 166,517,146 issued and 153,250,521 outstanding; 2014: 166,169,335 issued and 152,902,710 outstanding)
Stockholders' Equity
Common stock	0	0
Series B common stock, $0.0001 par value, 100,000,000 shares authorized (2015 and 2014: 0 issued and outstanding)
Stockholders' Equity
Common stock	$ 0	$ 0