Consolidating Guarantor Financial Information (Schedule of Consolidating Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current Assets
Cash and cash equivalents	$ 984	$ 959	$ 682	$ 740
Trade receivables - third party and affiliates	867	827
Non-trade receivables, net	343	209
Inventories, net	804	711
Deferred income taxes	115	49
Marketable securities, at fair value	41	53
Other assets	28	31
Total current assets	3,182	2,839
Investments in affiliates	841	800
Property, plant and equipment, net	3,425	3,350
Deferred income taxes	289	606
Other assets	341	463
Goodwill	798	777	760
Intangible assets, net	142	165
Total assets	9,018	9,000
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	177	168
Trade payables - third party and affiliates	799	649
Other liabilities	541	475
Deferred income taxes	10	25
Income taxes payable	18	38
Total current liabilities	1,545	1,355
Noncurrent Liabilities
Long-term debt	2,887	2,930
Deferred income taxes	225	50
Uncertain tax positions	200	181
Benefit obligations	1,175	1,602
Other liabilities	287	1,152
Total noncurrent liabilities	4,774	5,915
Total Celanese Corporation stockholders' equity	2,699	1,730
Noncontrolling interests	0	0
Total equity	2,699	1,730	1,341
Total liabilities and equity	9,018	9,000
Parent Guarantor [Member]
Current Assets
Cash and cash equivalents	0	10	0	0
Trade receivables - third party and affiliates	0	0
Non-trade receivables, net	33	31
Inventories, net	0	0
Deferred income taxes	0	0
Marketable securities, at fair value	0	0
Other assets	0	0
Total current assets	33	41
Investments in affiliates	2,667	1,692
Property, plant and equipment, net	0	0
Deferred income taxes	0	0
Other assets	0	0
Goodwill	0	0
Intangible assets, net	0	0
Total assets	2,700	1,733
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	0	0
Trade payables - third party and affiliates	0	0
Other liabilities	1	0
Deferred income taxes	0	0
Income taxes payable	0	0
Total current liabilities	1	0
Noncurrent Liabilities
Long-term debt	0	0
Deferred income taxes	0	0
Uncertain tax positions	0	3
Benefit obligations	0	0
Other liabilities	0	0
Total noncurrent liabilities	0	3
Total Celanese Corporation stockholders' equity	2,699	1,730
Noncontrolling interests	0	0
Total equity	2,699	1,730
Total liabilities and equity	2,700	1,733
Issuer [Member]
Current Assets
Cash and cash equivalents	0	0	0	0
Trade receivables - third party and affiliates	0	0
Non-trade receivables, net	482	444
Inventories, net	0	0
Deferred income taxes	0	0
Marketable securities, at fair value	0	0
Other assets	5	5
Total current assets	487	449
Investments in affiliates	4,458	3,437
Property, plant and equipment, net	0	0
Deferred income taxes	0	5
Other assets	1,965	1,927
Goodwill	0	0
Intangible assets, net	0	0
Total assets	6,910	5,818
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	1,713	1,584
Trade payables - third party and affiliates	0	0
Other liabilities	28	40
Deferred income taxes	17	21
Income taxes payable	0	0
Total current liabilities	1,758	1,645
Noncurrent Liabilities
Long-term debt	2,468	2,467
Deferred income taxes	8	0
Uncertain tax positions	6	6
Benefit obligations	0	0
Other liabilities	3	8
Total noncurrent liabilities	2,485	2,481
Total Celanese Corporation stockholders' equity	2,667	1,692
Noncontrolling interests	0	0
Total equity	2,667	1,692
Total liabilities and equity	6,910	5,818
Subsidiary Guarantors [Member]
Current Assets
Cash and cash equivalents	284	275	133	128
Trade receivables - third party and affiliates	131	340
Non-trade receivables, net	2,166	1,754
Inventories, net	243	196
Deferred income taxes	74	62
Marketable securities, at fair value	41	52
Other assets	15	15
Total current assets	2,954	2,694
Investments in affiliates	1,677	1,579
Property, plant and equipment, net	969	813
Deferred income taxes	248	509
Other assets	144	132
Goodwill	305	305
Intangible assets, net	64	69
Total assets	6,361	6,101
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	122	208
Trade payables - third party and affiliates	312	269
Other liabilities	441	267
Deferred income taxes	0	0
Income taxes payable	460	419
Total current liabilities	1,335	1,163
Noncurrent Liabilities
Long-term debt	825	872
Deferred income taxes	0	0
Uncertain tax positions	16	23
Benefit obligations	943	1,362
Other liabilities	91	101
Total noncurrent liabilities	1,875	2,358
Total Celanese Corporation stockholders' equity	3,151	2,580
Noncontrolling interests	0	0
Total equity	3,151	2,580
Total liabilities and equity	6,361	6,101
Non-Guarantors [Member]
Current Assets
Cash and cash equivalents	700	674	549	612
Trade receivables - third party and affiliates	877	653
Non-trade receivables, net	586	484
Inventories, net	622	589
Deferred income taxes	58	8
Marketable securities, at fair value	0	1
Other assets	24	27
Total current assets	2,867	2,436
Investments in affiliates	594	570
Property, plant and equipment, net	2,456	2,537
Deferred income taxes	49	92
Other assets	285	414
Goodwill	493	472
Intangible assets, net	78	96
Total assets	6,822	6,617
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	373	159
Trade payables - third party and affiliates	628	546
Other liabilities	513	475
Deferred income taxes	10	25
Income taxes payable	32	73
Total current liabilities	1,556	1,278
Noncurrent Liabilities
Long-term debt	1,646	1,597
Deferred income taxes	225	50
Uncertain tax positions	178	149
Benefit obligations	232	240
Other liabilities	202	1,055
Total noncurrent liabilities	2,483	3,091
Total Celanese Corporation stockholders' equity	2,783	2,248
Noncontrolling interests	0	0
Total equity	2,783	2,248
Total liabilities and equity	6,822	6,617
Consolidation Eliminations [Member]
Current Assets
Cash and cash equivalents	0	0	0	0
Trade receivables - third party and affiliates	(141)	(166)
Non-trade receivables, net	(2,924)	(2,504)
Inventories, net	(61)	(74)
Deferred income taxes	(17)	(21)
Marketable securities, at fair value	0	0
Other assets	(16)	(16)
Total current assets	(3,159)	(2,781)
Investments in affiliates	(8,555)	(6,478)
Property, plant and equipment, net	0	0
Deferred income taxes	(8)	0
Other assets	(2,053)	(2,010)
Goodwill	0	0
Intangible assets, net	0	0
Total assets	(13,775)	(11,269)
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	(2,031)	(1,783)
Trade payables - third party and affiliates	(141)	(166)
Other liabilities	(442)	(307)
Deferred income taxes	(17)	(21)
Income taxes payable	(474)	(454)
Total current liabilities	(3,105)	(2,731)
Noncurrent Liabilities
Long-term debt	(2,052)	(2,006)
Deferred income taxes	(8)	0
Uncertain tax positions	0	0
Benefit obligations	0	0
Other liabilities	(9)	(12)
Total noncurrent liabilities	(2,069)	(2,018)
Total Celanese Corporation stockholders' equity	(8,601)	(6,520)
Noncontrolling interests	0	0
Total equity	(8,601)	(6,520)
Total liabilities and equity	$ (13,775)	$ (11,269)