Celanese (CE) 10-Q 17 Jul 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 13, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	CELANESE CORPORATION
Entity Central Index Key	1,306,830
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		153,343,205
Entity Current Reporting Status	Yes

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 1,477	$ 1,769	$ 2,927	$ 3,474
Cost of sales	(1,102)	(1,361)	(2,171)	(2,688)
Gross profit	375	408	756	786
Selling, general and administrative expenses	(106)	(119)	(204)	(223)
Amortization of intangible assets	(3)	(5)	(6)	(11)
Research and development expenses	(59)	(24)	(79)	(46)
Other (charges) gains, net	(10)	2	(15)	1
Foreign exchange gain (loss), net	(3)	(1)	0	(2)
Gain (loss) on disposition of businesses and assets, net	(6)	(2)	(7)	(3)
Operating profit (loss)	188	259	445	502
Equity in net earnings (loss) of affiliates	40	101	88	141
Interest expense	(30)	(40)	(57)	(79)
Interest income	1	2	1	2
Dividend income - cost investments	26	29	54	58
Other income (expense), net	2	1	2	1
Earnings (loss) from continuing operations before tax	227	352	533	625
Income tax (provision) benefit	(24)	(94)	(96)	(172)
Earnings (loss) from continuing operations	203	258	437	453
Earnings (loss) from operation of discontinued operations	(3)	(1)	(3)	(1)
Income tax (provision) benefit from discontinued operations	1	1	1	1
Earnings (loss) from discontinued operations	(2)	0	(2)	0
Net earnings (loss)	201	258	435	453
Net (earnings) loss attributable to noncontrolling interests	4	1	6	2
Net earnings (loss) attributable to Celanese Corporation	205	259	441	455
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	207	259	443	455
Earnings (loss) from discontinued operations	(2)	0	(2)	0
Net earnings (loss)	$ 205	$ 259	$ 441	$ 455
Earnings (loss) per common share - basic
Continuing operations	$ 1.35	$ 1.66	$ 2.89	$ 2.91
Discontinued operations	(0.01)	0	(0.01)	0
Net earnings (loss) - basic	1.34	1.66	2.88	2.91
Earnings (loss) per common share - diluted
Continuing operations	1.34	1.66	2.87	2.91
Discontinued operations	(0.01)	0	(0.01)	0
Net earnings (loss) - diluted	$ 1.33	$ 1.66	$ 2.86	$ 2.91
Weighted average shares - basic	153,480,175	155,751,779	153,349,071	156,124,714
Weighted average shares - diluted	153,990,933	156,054,232	153,945,466	156,424,665

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - Equity Component [Domain] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net earnings (loss)	$ 201	$ 258	$ 435	$ 453
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	37	(22)	(119)	(17)
Gain (loss) on cash flow hedges	1	(3)	3	(6)
Pension and postretirement benefits	4	(14)	1	(26)
Total other comprehensive income (loss), net of tax	41	(39)	(116)	(49)
Total comprehensive income (loss), net of tax	242	219	319	404
Comprehensive (income) loss attributable to noncontrolling interests	4	1	6	2
Comprehensive income (loss) attributable to Celanese Corporation	$ 246	$ 220	$ 325	$ 406

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents (variable interest entity restricted - 2015: $1; 2014: $1)	$ 988	$ 780
Trade receivables - third party and affiliates (net of allowance for doubtful accounts - 2015: $6; 2014: $9)	873	801
Non-trade receivables, net	226	241
Inventories	762	782
Deferred income taxes	15	29
Marketable securities, at fair value	29	32
Other assets	30	33
Total current assets	2,923	2,698
Investments in affiliates	821	876
Property, plant and equipment (net of accumulated depreciation - 2015: $1,930; 2014: $1,816; variable interest entity restricted - 2015: $716; 2014: $535)	3,771	3,733
Deferred income taxes	260	253
Other assets (variable interest entity restricted - 2015: $38; 2014: $24)	372	377
Goodwill	716	749
Intangible assets (net of accumulated amortization - 2015: $533; 2014: $556)	125	132
Total assets	8,988	8,818
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	123	137
Trade payables - third party and affiliates	736	757
Other liabilities	298	432
Deferred income taxes	6	7
Income taxes payable	105	5
Total current liabilities	1,268	1,338
Long-term debt	2,552	2,608
Deferred income taxes	127	141
Uncertain tax positions	164	159
Benefit obligations	1,130	1,211
Other liabilities	$ 262	$ 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: 13,275,889 shares; 2014: 13,266,625 shares)	(611)	(611)
Additional paid-in capital	120	103
Retained earnings	3,848	3,491
Accumulated other comprehensive income (loss), net	(281)	(165)
Total Celanese Corporation stockholders' equity	3,076	2,818
Noncontrolling interests	409	260
Total equity	3,485	3,078
Total liabilities and equity	8,988	8,818
Series A common stock, $0.0001 par value, 400,000,000 shares authorized (2015: 166,619,120 issued and 153,343,231 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

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 988	$ 780
Allowance for doubtful accounts - trade receivables	6	9
Accumulated depreciation	1,930	1,816
Property, plant and equipment	3,771	3,733
Other assets	372	377
Finite-Lived Intangible Assets, Accumulated Amortization	$ 533	$ 556
Stockholders' Equity
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	100,000,000	100,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	13,275,889	13,266,625
Common stock, par value	$ 0.0001
Series A common stock, $0.0001 par value, 400,000,000 shares authorized (2015: 166,619,120 issued and 153,343,231 outstanding; 2014: 166,169,335 issued and 152,902,710 outstanding)
Stockholders' Equity
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	166,619,120	166,169,335
Common stock, shares outstanding	153,343,231	152,902,710
Series B common stock, $0.0001 par value, 100,000,000 shares authorized (2015 and 2014: 0 issued and outstanding)
Stockholders' Equity
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Variable Interest Entity, Primary Beneficiary [Member]
Current Assets
Cash and cash equivalents	$ 1	$ 1
Property, plant and equipment	716	535
Other assets	$ 38	$ 24

Consolidated Statement Equity

Consolidated Statement Equity - 6 months ended Jun. 30, 2015 - USD ($) $ in Millions	Total		Series A Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Balance as of the beginning of the period, shares at Dec. 31, 2014			152,902,710	13,266,625
Balance as of the beginning of the period at Dec. 31, 2014	$ 3,078
Total Celanese Corporation stockholders' equity at Dec. 31, 2014	2,818		$ 0	$ (611)	$ 103	$ 3,491	$ (165)
Stockholders' Equity Attributable to Noncontrolling Interest at Dec. 31, 2014	$ 260							$ 260
Stock option exercises, shares			70,117
Stock option exercises, net of tax			$ 0		2
Purchases of treasury stock, shares			(9,264)
Purchases of treasury stock, including related fees			$ 0
Stock awards, shares			379,668
Stock awards			$ 0
Purchases of treasury stock, shares	0	[1]		9,264
Purchases of treasury stock, including related fees	$ 0			$ 0
Stock-based compensation, net of tax					15
Net earnings (loss) attributable to Celanese Corporation	441					441
Series A common stock dividends						(84)
Other comprehensive income (loss), net of tax	(116)						(116)
Net earnings (loss) attributable to noncontrolling interests	(6)							(6)
Contributions from noncontrolling interests								155
Balance as of the end of the period, shares at Jun. 30, 2015			153,343,231	13,275,889
Balance as of the end of the period at Jun. 30, 2015	3,485
Stockholders' Equity Attributable to Noncontrolling Interest at Jun. 30, 2015	409							$ 409
Total Celanese Corporation stockholders' equity at Jun. 30, 2015	$ 3,076		$ 0	$ (611)	$ 120	$ 3,848	$ (281)
[1]	Excludes 9,264 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating Activities
Net earnings (loss)	$ 435	$ 453
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities
Asset impairments	0	0
Depreciation, amortization and accretion	175	151
Pension and postretirement net periodic benefit cost	(24)	(55)
Pension and postretirement contributions	(41)	(62)
Deferred income taxes, net	10	(9)
(Gain) loss on disposition of businesses and assets, net	6	4
Stock-based compensation	25	17
Undistributed earnings in unconsolidated affiliates	29	(28)
Other, net	6	6
Operating cash provided by (used in) discontinued operations	4	(1)
Changes in operating assets and liabilities
Trade receivables - third party and affiliates, net	(92)	(185)
Inventories	(1)	(15)
Other assets	36	25
Trade payables - third party and affiliates	21	73
Other liabilities	(36)	43
Net cash provided by (used in) operating activities	553	417
Investing Activities
Capital expenditures on property, plant and equipment	(117)	(130)
Acquisitions, net of cash acquired	(3)	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	(210)	(143)
Other, net	(24)	(10)
Net cash provided by (used in) investing activities	(354)	(283)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	(2)	1
Proceeds from short-term borrowings	26	25
Repayments of short-term borrowings	(39)	(43)
Proceeds from long-term debt	0	0
Repayments of long-term debt	(12)	(13)
Purchases of treasury stock, including related fees	0	(103)
Stock option exercises	2	3
Series A common stock dividends	(84)	(67)
Contributions from noncontrolling interests	155	148
Other, net	(11)	(1)
Net cash provided by (used in) financing activities	35	(50)
Exchange rate effects on cash and cash equivalents	(26)	(4)
Net increase (decrease) in cash and cash equivalents	208	80
Cash and cash equivalents as of beginning of period	780	984
Cash and cash equivalents as of end of period	$ 988	$ 1,064

Description of the Company and

Description of the Company and Basis of Presentation	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of the Company and Basis of Presentation	Description of the Company and Basis of Presentation Description of the Company Celanese Corporation and its subsidiaries (collectively, the "Company") is a global technology and specialty materials company. The Company's business involves processing chemical raw materials, such as methanol, carbon monoxide and ethylene, and natural products, including wood pulp, into value-added chemicals, thermoplastic polymers and other chemical-based products. Definitions In this Quarterly Report on Form 10-Q ("Quarterly Report"), the term "Celanese" refers to Celanese Corporation, a Delaware corporation, and not its subsidiaries. The term "Celanese US" refers to the Company's subsidiary, Celanese US Holdings LLC, a Delaware limited liability company, and not its subsidiaries. Basis of Presentation The unaudited interim consolidated financial statements for the three and six months ended June 30, 2015 and 2014 contained in this Quarterly Report were prepared in accordance with accounting principles generally accepted in the United States of America ("US GAAP") for all periods presented and include the accounts of the Company, its majority owned subsidiaries over which the Company exercises control and, when applicable, variable interest entities in which the Company is the primary beneficiary. The unaudited interim consolidated financial statements and other financial information included in this Quarterly Report, unless otherwise specified, have been presented to separately show the effects of discontinued operations. In the opinion of management, the accompanying unaudited consolidated balance sheets and related unaudited interim consolidated statements of operations, comprehensive income (loss), cash flows and equity include all adjustments, consisting only of normal recurring items necessary for their fair presentation in conformity with US GAAP. Certain information and footnote disclosures normally included in financial statements prepared in accordance with US GAAP may have been condensed or omitted in accordance with rules and regulations of the Securities and Exchange Commission ("SEC"). These unaudited interim consolidated financial statements should be read in conjunction with the Company's consolidated financial statements as of and for the year ended December 31, 2014 , filed on February 6, 2015 with the SEC as part of the Company's Annual Report on Form 10-K. Operating results for the three and six months ended June 30, 2015 are not necessarily indicative of the results to be expected for the entire year. In the ordinary course of business, the Company enters into contracts and agreements relative to a number of topics, including acquisitions, dispositions, joint ventures, supply agreements, product sales and other arrangements. The Company endeavors to describe those contracts or agreements that are material to its business, results of operations or financial position. The Company may also describe some arrangements that are not material but in which the Company believes investors may have an interest or which may have been included in a Form 8-K filing. Investors should not assume the Company has described all contracts and agreements relative to the Company's business in this Quarterly Report. For those consolidated ventures in which the Company owns or is exposed to less than 100% of the economics, the outside stockholders' interests are shown as noncontrolling interests. The Company has reclassified certain prior period amounts to conform to the current period's presentation. Estimates and Assumptions The preparation of unaudited interim consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the unaudited interim consolidated financial statements and the reported amounts of net sales, expenses and allocated charges during the reporting period. Significant estimates pertain to impairments of goodwill, intangible assets and other long-lived assets, purchase price allocations, restructuring costs and other (charges) gains, net, income taxes, pension and other postretirement benefits, asset retirement obligations, environmental liabilities and loss contingencies, among others. Actual results could differ from those estimates.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-07, Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent) ("ASU 2015-07"). ASU 2015-07 removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. This ASU also removes the requirement to make certain disclosures for all investments that are eligible to be measured at fair value using the net asset value per share practical expedient. Rather, such disclosures are limited to investments for which the entity has elected to measure the fair value using that practical expedient. This ASU is effective retrospectively for fiscal years, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted. The Company does not expect the impact of adopting this ASU to be material to the Company's financial statements and related disclosures. In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs ("ASU 2015-03"). ASU 2015-03 requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying value of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by ASU 2015-03. The amendments in this ASU are effective retrospectively for fiscal years, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted. The Company does not expect the impact of adopting this ASU to be material to the Company's financial statements and related disclosures. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("ASU 2014-09") . ASU 2014-09 supersedes the revenue recognition requirements of FASB Accounting Standards Codification ("ASC") Topic 605, Revenue Recognition and most industry-specific guidance throughout the ASC, resulting in the creation of FASB ASC Topic 606, Revenue from Contracts with Customers . ASU 2014-09 requires entities to recognize revenue in a way that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. This ASU provides alternative methods of adoption. On July 9, 2015, the FASB voted to defer the effective date by one year to December 15, 2017 for fiscal years, and interim periods within those years, beginning after that date and permitted early adoption of the standard, but not before the original effective date of December 15, 2016. The Company is currently assessing the potential impact of adopting this ASU on its financial statements and related disclosures.

Ventures and Variable Interest

Ventures and Variable Interest Entities	6 Months Ended
	Jun. 30, 2015
Ventures and Variable Interest Entities [Abstract]
Ventures and Variable Interest Entities	Ventures and Variable Interest Entities Consolidated Variable Interest Entities In February 2014, the Company formed a joint venture, Fairway Methanol LLC ("Fairway"), with Mitsui & Co., Ltd., of Tokyo, Japan ("Mitsui"), in which the Company owns 50% of Fairway, for the production of methanol at the Company's integrated chemical plant in Clear Lake, Texas. The planned methanol unit will utilize natural gas in the US Gulf Coast region as a feedstock and will benefit from the existing infrastructure at the Company's Clear Lake facility. Both Mitsui and the Company will supply their own natural gas to Fairway in exchange for methanol tolling under a cost-plus off-take arrangement. The planned methanol facility will have an annual capacity of 1.3 million tons. The Company determined that Fairway is a variable interest entity ("VIE") in which the Company is the primary beneficiary. Under the terms of the joint venture agreements, the Company provides site services and day-to-day operations for the methanol facility. In addition, the joint venture agreements provide that the Company indemnifies Mitsui for environmental obligations that exceed a specified threshold, as well as an equity option between the partners. Accordingly, the Company consolidates the venture and records a noncontrolling interest for the share of the venture owned by Mitsui. Fairway is included in the Company's Acetyl Intermediates segment. The carrying amount of the assets and liabilities associated with Fairway included in the unaudited consolidated balance sheets are as follows: As of As of (In $ millions) Cash and cash equivalents 1 1 Property, plant and equipment 716 535 Other assets 38 24 Total assets (1) 755 560 Trade payables 2 — Current liabilities (2) 24 40 Long-term debt 6 — Total liabilities 32 40 ______________________________ (1) Assets can only be used to settle the obligations of Fairway. (2) Amounts owed by Fairway to the Company for reimbursement of expenditures. Nonconsolidated Variable Interest Entities The Company holds variable interests in entities that supply certain raw materials and services to the Company. The variable interests primarily relate to cost-plus contractual arrangements with the suppliers and recovery of capital expenditures for certain plant assets plus a rate of return on such assets. Liabilities for such supplier recoveries of capital expenditures have been recorded as capital lease obligations. The entities are not consolidated because the Company is not the primary beneficiary of the entities as it does not have the power to direct the activities of the entities that most significantly impact the entities' economic performance. The Company's maximum exposure to loss as a result of its involvement with these VIEs as of June 30, 2015 relates primarily to the recovery of capital expenditures for certain property, plant and equipment. The carrying amount of the assets and liabilities associated with the obligations to nonconsolidated VIEs, as well as the maximum exposure to loss relating to these nonconsolidated VIEs are as follows: As of As of (In $ millions) Property, plant and equipment, net 90 96 Trade payables 49 43 Current installments of long-term debt 9 9 Long-term debt 120 125 Total liabilities 178 177 Maximum exposure to loss 315 291 The difference between the total liabilities associated with obligations to unconsolidated VIEs and the maximum exposure to loss primarily represents take-or-pay obligations for services included in the Company's unconditional purchase obligations ( Note 16 ).

Marketable Securities, at Fair

Marketable Securities, at Fair Value	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Marketable Securities, at Fair Value	Marketable Securities, at Fair Value The Company's nonqualified trusts hold available-for-sale securities for funding requirements of the Company's nonqualified pension plans ( Note 9 ) as follows: As of As of (In $ millions) Amortized cost 29 32 Gross unrealized gain — — Gross unrealized loss — — Fair value 29 32 See Note 15 - Fair Value Measurements for further information regarding the fair value of the Company's marketable securities.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Inventories	Inventories As of As of (In $ millions) Finished goods 559 579 Work-in-process 51 53 Raw materials and supplies 152 150 Total 762 782

Current Other Liabilities

Current Other Liabilities	6 Months Ended
	Jun. 30, 2015
Other Liabilities, Current [Abstract]
Current Other Liabilities	Current Other Liabilities As of As of (In $ millions) Asset retirement obligations 7 9 Benefit obligations ( Note 9 ) 33 28 Customer rebates 33 53 Derivatives ( Note 14 ) 5 13 Environmental ( Note 10 ) 18 21 Insurance 9 9 Interest 15 19 Restructuring ( Note 12 ) 15 21 Salaries and benefits 79 129 Sales and use tax/foreign withholding tax payable 16 13 Uncertain tax positions ( Note 13 ) — 59 Other 68 58 Total 298 432

Noncurrent Other Liabilities

Noncurrent Other Liabilities	6 Months Ended
	Jun. 30, 2015
Other Liabilities, Noncurrent [Abstract]
Noncurrent Other Liabilities	Noncurrent Other Liabilities As of As of (In $ millions) Asset retirement obligations 29 28 Deferred proceeds 43 47 Deferred revenue 18 21 Derivatives ( Note 14 ) — 10 Environmental ( Note 10 ) 61 63 Income taxes payable 12 13 Insurance 52 51 Other 47 50 Total 262 283

Debt

Debt	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Debt	Debt As of As of (In $ millions) Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates Current installments of long-term debt 26 25 Short-term borrowings, including amounts due to affiliates (1) 67 77 Accounts receivable securitization facility (2) 30 35 Total 123 137 ______________________________ (1) The weighted average interest rate was 4.5% and 4.7% as of June 30, 2015 and December 31, 2014 , respectively. (2) The weighted average interest rate was 0.7% as of June 30, 2015 and December 31, 2014 . As of As of (In $ millions) Long-Term Debt Senior credit facilities - Term C-2 loan due 2016 31 34 Senior credit facilities - Term C-3 loan due 2018 886 906 Senior unsecured notes due 2019, interest rate of 3.250% 336 364 Senior unsecured notes due 2021, interest rate of 5.875% 400 400 Senior unsecured notes due 2022, interest rate of 4.625% 500 500 Pollution control and industrial revenue bonds due at various dates through 2030, interest rates ranging from 5.7% to 6.7% 169 169 Obligations under capital leases due at various dates through 2054 256 260 Subtotal 2,578 2,633 Current installments of long-term debt (26 ) (25 ) Total 2,552 2,608 Senior Notes The Company has outstanding senior unsecured notes issued in public offerings registered under the Securities Act of 1933, as amended, as follows (collectively, the "Senior Notes"): Senior Notes Issue Date Principal Interest Rate Interest Pay Dates Maturity Date (In millions) (In percentages) 3.250% Notes September 2014 €300 3.250 April 15 October 15 October 15, 2019 4.625% Notes November 2012 $500 4.625 March 15 September 15 November 15, 2022 5.875% Notes May 2011 $400 5.875 June 15 December 15 June 15, 2021 The Senior Notes are senior unsecured obligations of Celanese US and rank equally in right of payment with all other unsubordinated indebtedness of Celanese US. The Senior Notes were issued under indentures (collectively, "Indentures") among Celanese US, Celanese and each of the domestic subsidiaries of Celanese US that guarantee its obligations under its senior secured credit facilities ("Subsidiary Guarantors") and Wells Fargo Bank, National Association, as trustee. The Senior Notes are guaranteed on a senior unsecured basis by Celanese and the Subsidiary Guarantors. The Indentures contain covenants, including, but not limited to, restrictions on the Company's ability to incur indebtedness; grant liens on assets; merge, consolidate, or sell assets; pay dividends or make other restricted payments; engage in transactions with affiliates; or engage in other businesses. Celanese US may redeem some or all of each of the Senior Notes, prior to their respective maturity dates, at a redemption price of 100% of the principal amount, plus a "make-whole" premium as specified in the applicable indenture, plus accrued and unpaid interest, if any, to the redemption date. Senior Credit Facilities In September 2014, Celanese US, Celanese and the Subsidiary Guarantors entered into an amendment agreement with the lenders under Celanese US's existing senior secured credit facilities in order to amend and restate the amended credit agreement dated September 16, 2013 (as amended and restated by the 2014 amendment agreement, the "Amended Credit Agreement"). Under the Amended Credit Agreement, all of the US dollar-denominated Term C-2 term loans and all but €28 million of the Euro-denominated Term C-2 term loans under the 2013 amended credit agreement were converted into, or refinanced by, the Term C-3 loan facility with an extended maturity date of October 2018 . The non-extended portions of the Term C-2 loan facility continue to have a maturity date of October 2016 . In addition, the maturity date of the Company's revolving credit facility was extended to October 2018 and the facility was increased to $900 million . Accordingly, the Amended Credit Agreement consists of the Term C-2 loan facility, the Term C-3 loan facility and a $900 million revolving credit facility. As of June 30, 2015 , the margin for borrowings under the Term C-2 loan facility was 2.0% above the Euro Interbank Offered Rate ("EURIBOR") and the margin for borrowings under the Term C-3 loan facility was 2.25% above LIBOR (for US dollars) and 2.25% above EURIBOR (for Euros), as applicable. As of June 30, 2015 , the margin for borrowings under the revolving credit facility was 1.5% above LIBOR. The margin for borrowings under the revolving credit facility is subject to increase or decrease in certain circumstances based on changes in the corporate credit ratings of Celanese or Celanese US. Term loan borrowings under the Amended Credit Agreement are subject to amortization at 1% of the initial principal amount per annum, payable quarterly. In addition, the Company pays quarterly commitment fees on the unused portions of the revolving credit facility of 0.25% per annum. The Amended Credit Agreement is guaranteed by Celanese and certain domestic subsidiaries of Celanese US and is secured by a lien on substantially all assets of Celanese US and such guarantors, subject to certain agreed exceptions (including for certain real property and certain shares of foreign subsidiaries), pursuant to the Guarantee and Collateral Agreement dated April 2, 2007. As a condition to borrowing funds or requesting letters of credit be issued under the revolving credit facility, the Company's first lien senior secured leverage ratio (as calculated as of the last day of the most recent fiscal quarter for which financial statements have been delivered under the revolving facility) cannot exceed the threshold as specified below. Further, the Company's first lien senior secured leverage ratio must be maintained at or below that threshold while any amounts are outstanding under the revolving credit facility. The Company's amended first lien senior secured leverage ratios under the revolving credit facility are as follows: As of June 30, 2015 Maximum Estimate Estimate, If Fully Drawn 3.90 0.61 1.18 The Amended Credit Agreement contains covenants including, but not limited to, restrictions on the Company's ability to incur indebtedness; grant liens on assets; merge, consolidate, or sell assets; pay dividends or make other restricted payments; make investments; prepay or modify certain indebtedness; engage in transactions with affiliates; enter into sale-leaseback transactions or hedge transactions; or engage in other businesses; as well as a covenant requiring maintenance of a maximum first lien senior secured leverage ratio. The Amended Credit Agreement also maintains a number of events of default, including a cross default to other debt of Celanese, Celanese US, or their subsidiaries, including the Senior Notes, in an aggregate amount equal to more than $50 million and the occurrence of a change of control. Failure to comply with these covenants, or the occurrence of any other event of default, could result in acceleration of the borrowings and other financial obligations under the Amended Credit Agreement. The Company is in compliance with all of the covenants related to its debt agreements as of June 30, 2015 . Accounts Receivable Securitization Facility In August 2013, the Company entered into a US accounts receivable securitization facility pursuant to (i) a Purchase and Sale Agreement ("Sale Agreement") among certain US subsidiaries of the Company (each an "Originator"), Celanese International Corporation ("CIC") and CE Receivables LLC, a wholly-owned, "bankruptcy remote" special purpose subsidiary of an Originator ("Transferor") and (ii) a Receivables Purchase Agreement ("Purchase Agreement"), among CIC, as servicer, the Transferor, various third-party purchasers (collectively, "Purchasers") and The Bank of Tokyo-Mitsubishi UFJ, Ltd., New York Branch, as administrator ("Administrator"). The Purchase Agreement expires in 2016 , but may be extended for successive one year terms by agreement of the parties. All of the Transferor's assets have been pledged to the Administrator in support of its obligations under the Purchase Agreement. The Company's balances available for borrowing are as follows: As of (In $ millions) Revolving Credit Facility Borrowings outstanding — Letters of credit issued — Available for borrowing 900 Accounts Receivable Securitization Facility Borrowings outstanding 30 (1) Letters of credit issued 74 Available for borrowing 16 Total borrowing base 120 Maximum borrowing base 135 (2) ______________________________ (1) The Company repaid $15 million of borrowings outstanding during the six months ended June 30, 2015 . (2) Outstanding accounts receivable transferred by the Originators to the Transferor was $173 million .

Benefit Obligations

Benefit Obligations	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Benefit Obligations	Benefit Obligations The components of net periodic benefit cost are as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Pension Post-retirement Pension Post-retirement Pension Post-retirement Pension Post-retirement (In $ millions) (In $ millions) Service cost 3 1 3 1 6 1 6 1 Interest cost 36 — 43 — 71 1 85 2 Expected return on plan assets (53 ) — (54 ) — (105 ) — (108 ) — Recognized actuarial (gain) loss — 1 — — — 1 — — Amortization of prior service cost (credit), net — — — (22 ) (1) — — — (41 ) (1) Special termination benefit — — — — 1 — — — Total (14 ) 2 (8 ) (21 ) (27 ) 3 (17 ) (38 ) ______________________________ (1) Primarily related to the elimination of eligibility for all current and future US employees to participate in the Company's US postretirement health care plan. Benefit obligation funding is as follows: As of Total Expected 2015 (In $ millions) Cash contributions to defined benefit pension plans 27 28 Benefit payments to nonqualified pension plans 11 22 Benefit payments to other postretirement benefit plans 3 17 Cash contributions to German multiemployer defined benefit pension plans (1) 3 6 ______________________________ (1) The Company makes contributions based on specified percentages of employee contributions. The Company's estimates of its US defined benefit pension plan contributions reflect the provisions of the Pension Protection Act of 2006.

Environmental

Environmental	6 Months Ended
	Jun. 30, 2015
Environmental Remediation Obligations [Abstract]
Environmental	Environmental The Company is subject to environmental laws and regulations worldwide that impose limitations on the discharge of pollutants into the air and water and establish standards for the treatment, storage and disposal of solid and hazardous wastes. The Company believes that it is in substantial compliance with all applicable environmental laws and regulations. The Company is also subject to retained environmental obligations specified in various contractual agreements arising from the divestiture of certain businesses by the Company or one of its predecessor companies. The components of environmental remediation reserves are as follows: As of As of (In $ millions) Demerger obligations ( Note 16 ) 24 25 Divestiture obligations ( Note 16 ) 19 21 Active sites 20 23 US Superfund sites 14 12 Other environmental remediation reserves 2 3 Total 79 84 Remediation Due to its industrial history and through retained contractual and legal obligations, the Company has the obligation to remediate specific areas on its own sites as well as on divested, demerger, orphan or US Superfund sites (as defined below). In addition, as part of the demerger agreement between the Company and Hoechst AG ("Hoechst"), a specified portion of the responsibility for environmental liabilities from a number of Hoechst divestitures was transferred to the Company ( Note 16 ). The Company provides for such obligations when the event of loss is probable and reasonably estimable. The Company believes that environmental remediation costs will not have a material adverse effect on the financial position of the Company, but may have a material adverse effect on the results of operations or cash flows in any given period. US Superfund Sites In the US, the Company may be subject to substantial claims brought by US federal or state regulatory agencies or private individuals pursuant to statutory authority or common law. In particular, the Company has a potential liability under the US Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended, and related state laws (collectively referred to as "Superfund") for investigation and cleanup costs at certain sites. At most of these sites, numerous companies, including the Company, or one of its predecessor companies, have been notified that the US Environmental Protection Agency ("EPA"), state governing bodies or private individuals consider such companies to be potentially responsible parties ("PRP") under Superfund or related laws. The proceedings relating to these sites are in various stages. The cleanup process has not been completed at most sites, and the status of the insurance coverage for some of these proceedings is uncertain. Consequently, the Company cannot accurately determine its ultimate liability for investigation or cleanup costs at these sites. As events progress at each site for which it has been named a PRP, the Company accrues, as appropriate, a liability for site cleanup. Such liabilities include all costs that are probable and can be reasonably estimated. In establishing these liabilities, the Company considers its shipment of waste to a site, its percentage of total waste shipped to the site, the types of wastes involved, the conclusions of any studies, the magnitude of any remedial actions that may be necessary and the number and viability of other PRPs. Often the Company joins with other PRPs to sign joint defense agreements that settle, among PRPs, each party's percentage allocation of costs at the site. Although the ultimate liability may differ from the estimate, the Company routinely reviews the liabilities and revises the estimate, as appropriate, based on the most current information available. One such site is the Lower Passaic River Study Area. The Company and 70 other companies are parties to a May 2007 Administrative Order on Consent with the EPA to perform a Remedial Investigation/Feasibility Study ("RI/FS") in the lower 17-mile stretch of the Passaic River in order to identify the levels of contaminants and potential cleanup actions. The parties are still working on the RI/FS with a goal to complete it in 2015. On April 11, 2014, the EPA issued its proposed evaluation of remediation alternatives for the lower 8-mile stretch of the Passaic River. Cost estimates for the various alternatives of the Passaic River range from $365 million to $3.2 billion . The EPA's preferred plan for the lower 8-mile stretch of the Passaic River would involve dredging bank to bank and installing an engineered cap at an estimated cost of $1.7 billion . The parties involved have submitted comments to the EPA challenging the science, scope, necessity and viability of the EPA's proposed plan as the EPA's preferred remedy for the lower 8-mile stretch is inconsistent with the remedy being developed in the RI/FS for the full 17-mile stretch of the river. The EPA will evaluate all the inputs and is expected to issue a final decision concerning the lower 8-mile stretch of the river in 2015. Any subsequent order from the EPA requiring clean-up actions could be judicially challenged. While the final remedy remains uncertain, the Company has found no evidence that it contributed any of the primary contaminants of concern to the Passaic River. The Company is vigorously defending this matter and currently believes that its ultimate allocable share of the cleanup costs, estimated at substantially less than 1% , will not be material.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stockholders' Equity Common Stock The Company's Board of Directors follows a policy of declaring, subject to legally available funds, a quarterly cash dividend on each share of the Company's Series A common stock, par value $0.0001 per share ("Common Stock"), unless the Company's Board of Directors, in its sole discretion, determines otherwise. The amount available to pay cash dividends is restricted by the Company's Amended Credit Agreement and the Indentures. The Company's Board of Directors approved increases in the Company's Common Stock cash dividend rates as follows: Increase Quarterly Common Stock Cash Dividend Annual Common Stock Cash Dividend Effective Date (In percentages) (In $ per share) April 2014 39 0.25 1.00 May 2014 April 2015 20 0.30 1.20 May 2015 Treasury Stock Six Months Ended Total From 2015 2014 Shares repurchased — (1) 1,870,297 20,667,195 (2) Average purchase price per share $ — $ 55.13 $ 44.27 Cash paid for repurchased shares (in millions) $ — $ 103 $ 915 Aggregate Board of Directors repurchase authorizations (in millions) (3) $ — $ 172 $ 1,366 ______________________________ (1) Excludes 9,264 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares. (2) Excludes 21,108 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares. (3) These authorizations give management discretion in determining the timing and conditions under which shares may be repurchased. This repurchase program began in February 2008 and does not have an expiration date. The purchase of treasury stock reduces the number of shares outstanding. The repurchased shares may be used by the Company for compensation programs utilizing the Company's stock and other corporate purposes. The Company accounts for treasury stock using the cost method and includes treasury stock as a component of stockholders' equity. Other Comprehensive Income (Loss), Net Three Months Ended June 30, 2015 2014 Gross Amount Income Tax (Provision) Benefit Net Amount Gross Amount Income Tax (Provision) Benefit Net Amount (In $ millions) Unrealized gain (loss) on marketable securities — (1 ) (1 ) — — — Foreign currency translation 33 4 37 (12 ) (10 ) (22 ) Gain (loss) on cash flow hedges 1 — 1 (3 ) — (3 ) Pension and postretirement benefits — 4 4 (22 ) 8 (14 ) Total 34 7 41 (37 ) (2 ) (39 ) Six Months Ended June 30, 2015 2014 Gross Income Net Gross Income Net (In $ millions) Unrealized gain (loss) on marketable securities — (1 ) (1 ) — — — Foreign currency translation (117 ) (2 ) (119 ) (15 ) (2 ) (17 ) Gain (loss) on cash flow hedges 4 (1 ) 3 (3 ) (3 ) (6 ) Pension and postretirement benefits — 1 1 (41 ) 15 (26 ) Total (113 ) (3 ) (116 ) (59 ) 10 (49 ) Adjustments to Accumulated other comprehensive income (loss), net, are as follows: Unrealized Gain (Loss) on Marketable Securities ( Note 4 ) Foreign Currency Translation Gain (Loss) on Cash Flow Hedges ( Note 14 ) Pension and Postretire- ment Benefits ( Note 9 ) Accumulated Other Comprehensive Income (Loss), Net (In $ millions) As of December 31, 2014 1 (151 ) (4 ) (11 ) (165 ) Other comprehensive income (loss) before reclassifications — (117 ) (1 ) — (118 ) Amounts reclassified from accumulated other comprehensive income (loss) — — 5 — 5 Income tax (provision) benefit (1 ) (2 ) (1 ) 1 (3 ) As of June 30, 2015 — (270 ) (1 ) (10 ) (281 )

Other (Charges) Gains, Net

Other (Charges) Gains, Net	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Other (Charges) Gains, Net	Other (Charges) Gains, Net Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (In $ millions) Employee termination benefits (10 ) (1 ) (14 ) (3 ) Plant/office closures — — — 1 Commercial disputes — — (1 ) — Other — 3 — 3 Total (10 ) 2 (15 ) 1 2015 During the three and six months ended June 30, 2015 , the Company recorded $10 million and $14 million , respectively, of employee termination benefits related to the Company's ongoing efforts to align its businesses around its core value drivers. During the three months ended June 30, 2015 , the Company also recorded $39 million in accelerated depreciation expense related to property, plant and equipment no longer in use at the Company's ethanol technology development unit in Clear Lake, Texas. The Company believes that further development of its ethanol technology can be achieved through the utilization of other existing assets. The accelerated depreciation is included in Research and development expenses in the unaudited interim consolidated statements of operations and is included in the Company's Acetyl Intermediates segment. 2014 During the three months ended June 30, 2014 , the Company recorded a $3 million adjustment to its initial estimate for asset retirement obligations related to the closure of its acetic anhydride facility in Roussillon, France and its vinyl acetate monomer ("VAM") facility in Tarragona, Spain. The Roussillon, France acetic anhydride operations and the Tarragona, Spain VAM operations are included in the Company's Acetyl Intermediates segment. During the six months ended June 30, 2014 , the Company recorded $2 million of employee termination benefits related to the closure of its acetic anhydride facility in Roussillon, France and its VAM facility in Tarragona, Spain and $1 million of employee termination benefits related to a business optimization project included in the Company's Advanced Engineered Materials segment. The changes in the restructuring reserves by business segment are as follows: Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Total (In $ millions) Employee Termination Benefits As of December 31, 2014 4 1 1 5 3 14 Additions 4 1 2 1 6 14 Cash payments (1 ) (1 ) (1 ) (3 ) — (6 ) Other changes (3 ) — — — (3 ) (6 ) Exchange rate changes (1 ) — — (1 ) — (2 ) As of June 30, 2015 3 1 2 2 6 14 Plant/Office Closures As of December 31, 2014 — — — 7 — 7 Additions — — — — — — Cash payments — — — (5 ) — (5 ) Other changes — — — — — — Exchange rate changes — — — (1 ) — (1 ) As of June 30, 2015 — — — 1 — 1 Total 3 1 2 3 6 15

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (In percentages) Effective income tax rate 11 27 18 28 The lower effective income tax rate for the three and six months ended June 30, 2015 is primarily attributable to a $30 million reduction of prior year tax positions due to audit closures and technical judicial clarifications. The rate was also impacted by changes in jurisdictional earnings, a portion of which related to the implementation of the Company's centralized European operating company. In February 2015, the Company established a centralized European operating company for the purpose of improving the operational efficiencies and profitability of its European operations and certain global product lines. These activities will directly impact the Company's mix of earnings and product flows and will result in both favorable and unfavorable tax rate impacts in the jurisdictions in which the Company operates. For the six months ended June 30, 2015 , the Company's uncertain tax positions decreased $73 million , primarily due to a $59 million decrease in uncertain tax positions resulting from reductions for audit closures and technical judicial clarifications ( Note 6 ) and exchange rate fluctuations of $14 million , partially offset by interest and other changes in uncertain tax positions. The Company's US tax returns for the years 2009 through 2012 are currently under audit by the US Internal Revenue Service and certain of the Company's subsidiaries are under audit in jurisdictions outside of the US. The Company does not expect any material changes in the unrecognized tax benefits within the next twelve months related to the settlement of one or more of these audits or lapse of applicable statutes of limitations.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Interest Rate Swaps The Company fixes the LIBOR portion of its US dollar denominated variable rate borrowings ( Note 8 ) with interest rate swap derivative arrangements as follows: As of June 30, 2015 Notional Value Effective Date Expiration Date Fixed Rate (In $ millions) (In percentages) 500 January 2, 2014 January 2, 2016 0.94 As of December 31, 2014 Notional Value Effective Date Expiration Date Fixed Rate (In $ millions) (In percentages) 500 January 2, 2014 January 2, 2016 1.02 Foreign Currency Forwards and Swaps Gross notional values of the foreign currency forwards and swaps are as follows: As of As of (In $ millions) Total 609 1,336 Cross-currency Swaps On March 31, 2015, the Company settled its cross-currency swap agreements with notional values of $250 million / €193 million , expiring September 11, 2020 , and $225 million / €162 million , expiring April 17, 2019 , in exchange for cash of $88 million . The Company recorded a net loss of $1 million , which is included in Other income (expense), net in the unaudited interim consolidated statement of operations. The Company classifies cash flows from derivative instruments designated as cash flow hedges in the same category of the consolidated statement of cash flows as the cash flows from the items being hedged. Accordingly, the settlement of the cross-currency swap agreements is included in Net cash provided by (used in) operating activities in the unaudited interim consolidated statement of cash flows for the six months ended June 30, 2015 . Information regarding changes in the fair value of the Company's derivative and non-derivative instruments is as follows: Gain (Loss) Recognized in Other Comprehensive Income (Loss) Gain (Loss) Recognized in Earnings (Loss) Three Months Ended June 30, Statement of Operations Classification 2015 2014 2015 2014 (In $ millions) Designated as Cash Flow Hedges Interest rate swaps — (1 ) — (2 ) Interest expense Cross-currency swaps — (4 ) — 3 Other income (expense), net; Interest expense Total — (5 ) — 1 Designated as Net Investment Hedges 3.250% Notes (13 ) — — — Foreign currency translation Term C-2 and Term C-3 loans (8 ) — — — Foreign currency translation Total (21 ) — — — Not Designated as Hedges Interest rate swaps — — (1 ) — Interest expense Foreign currency forwards and swaps — — — (3 ) Foreign exchange gain (loss), net; Other income (expense), net Total — — (1 ) (3 ) Gain (Loss) Recognized in Other Comprehensive Income (Loss) Gain (Loss) Recognized in Earnings (Loss) Six Months Ended June 30, Statement of Operations Classification 2015 2014 2015 2014 (In $ millions) Designated as Cash Flow Hedges Interest rate swaps — (1 ) — (2 ) Interest expense Cross-currency swaps — (4 ) 46 3 Other income (expense), net; Interest expense Total — (5 ) 46 1 Designated as Net Investment Hedges 3.250% Notes 28 — — — Foreign currency translation Term C-2 and Term C-3 loans (1) — — — — Foreign currency translation Total 28 — — — Not Designated as Hedges Interest rate swaps — — (1 ) — Interest expense Foreign currency forwards and swaps — — (68 ) (5 ) Foreign exchange gain (loss), net; Other income (expense), net Total — — (69 ) (5 ) ______________________________ (1) During the three months ended March 31, 2015, the Company designated the Euro-based principal amount of its Term C-2 loan and its Term C-3 loan as a net investment hedge of its investment in a wholly-owned international subsidiary whose functional currency is the Euro to mitigate the volatility caused by the changes in foreign currency exchange rates of the Euro with respect to the US dollar. See Note 15 - Fair Value Measurements for further information regarding the fair value of the Company's derivative instruments. Certain of the Company's foreign currency forwards and swaps and interest rate swaps permit the Company to net settle all contracts with the counterparty through a single payment in an agreed upon currency in the event of default or early termination of the contract, similar to a master netting arrangement. The Company's interest rate swap agreements are subject to cross collateralization under the Guarantee and Collateral Agreement entered into in conjunction with the Term loan borrowings ( Note 8 ). Information regarding the gross amounts of the Company's derivative instruments and the amounts offset in the unaudited consolidated balance sheets is as follows: As of As of (In $ millions) Derivative Assets Gross amount recognized 3 55 Gross amount offset in the consolidated balance sheets — — Net amount presented in the consolidated balance sheets 3 55 Gross amount not offset in the consolidated balance sheets 1 4 Net amount 2 51 As of As of (In $ millions) Derivative Liabilities Gross amount recognized 5 23 Gross amount offset in the consolidated balance sheets — — Net amount presented in the consolidated balance sheets 5 23 Gross amount not offset in the consolidated balance sheets 1 4 Net amount 4 19

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The Company's financial assets and liabilities are measured at fair value on a recurring basis as follows: Marketable Securities. Where possible, the Company utilizes quoted prices in active markets to measure available-for-sale equity securities, including mutual funds. Such items are classified as Level 1 in the fair value measurement hierarchy. Mutual funds are valued at the net asset value per share or unit multiplied by the number of shares or units held as of the measurement date. Derivatives. Derivative financial instruments, including interest rate swaps, cross-currency swaps and foreign currency forwards and swaps, are valued in the market using discounted cash flow techniques. These techniques incorporate Level 1 and Level 2 fair value measurement inputs such as interest rates and foreign currency exchange rates. These market inputs are utilized in the discounted cash flow calculation considering the instrument's term, notional amount, discount rate and credit risk. Significant inputs to the derivative valuation for interest rate swaps, cross-currency swaps and foreign currency forwards and swaps are observable in the active markets and are classified as Level 2 in the fair value measurement hierarchy. Fair Value Measurement Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Total Balance Sheet Classification (In $ millions) As of June 30, 2015 Mutual funds 29 — 29 Marketable securities, at fair value Derivatives Not Designated as Hedges Foreign currency forwards and swaps — 3 3 Current Other assets Total assets 29 3 32 Designated as Net Investment Hedges 3.250% Notes (1) — — — Long-term Debt Term C-2 and Term C-3 loans (1) — — — Long-term Debt Derivatives Not Designated as Hedges Interest rate swaps — (2 ) (2 ) Current Other liabilities Foreign currency forwards and swaps — (3 ) (3 ) Current Other liabilities Total liabilities — (5 ) (5 ) As of December 31, 2014 Mutual funds 32 — 32 Marketable securities, at fair value Derivatives Designated as Cash Flow Hedges Cross-currency swaps — 9 9 Current Other assets Cross-currency swaps — 43 43 Noncurrent Other assets Derivatives Not Designated as Hedges Foreign currency forwards and swaps — 3 3 Current Other assets Total assets 32 55 87 Derivatives Designated as Cash Flow Hedges Cross-currency swaps — (2 ) (2 ) Current Other liabilities Cross-currency swaps — (10 ) (10 ) Noncurrent Other liabilities Designated as a Net Investment Hedge 3.250% Notes (1) — — — Long-term Debt Derivatives Not Designated as Hedges Interest rate swaps — (4 ) (4 ) Current Other liabilities Foreign currency forwards and swaps — (7 ) (7 ) Current Other liabilities Total liabilities — (23 ) (23 ) ______________________________ (1) Included in the unaudited consolidated balance sheets at carrying amount. Carrying values and fair values of financial instruments that are not carried at fair value are as follows: Fair Value Measurement Carrying Amount Significant Other Observable Inputs (Level 2) Unobservable Inputs (Level 3) Total (In $ millions) As of June 30, 2015 Cost investments 147 — — — Insurance contracts in nonqualified trusts 52 52 — 52 Long-term debt, including current installments of long-term debt 2,578 2,364 256 2,620 As of December 31, 2014 Cost investments 145 — — — Insurance contracts in nonqualified trusts 56 56 — 56 Long-term debt, including current installments of long-term debt 2,633 2,398 260 2,658 In general, the cost investments included in the table above are not publicly traded and their fair values are not readily determinable; however, the Company believes the carrying values approximate or are less than the fair values. Insurance contracts in nonqualified trusts consist of long-term fixed income securities, which are valued using independent vendor pricing models with observable inputs in the active market and therefore represent a Level 2 fair value measurement. The fair value of long-term debt is based on valuations from third-party banks and market quotations and is classified as Level 2 in the fair value measurement hierarchy. The fair value of obligations under capital leases, which are included in long-term debt, is based on lease payments and discount rates, which are not observable in the market and therefore represents a Level 3 fair value measurement. As of June 30, 2015 and December 31, 2014 , the fair values of cash and cash equivalents, receivables, trade payables, short-term borrowings and the current installments of long-term debt approximate carrying values due to the short-term nature of these instruments. These items have been excluded from the table with the exception of the current installments of long-term debt.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company is involved in legal and regulatory proceedings, lawsuits, claims and investigations incidental to the normal conduct of business, relating to such matters as product liability, land disputes, commercial contracts, employment, antitrust, intellectual property, workers' compensation, chemical exposure, asbestos exposure, trade compliance, prior acquisitions and divestitures, claims of legacy stockholders, past waste disposal practices and release of chemicals into the environment. The Company is actively defending those matters where the Company is named as a defendant. Due to the inherent subjectivity of assessments and unpredictability of outcomes of legal proceedings, the Company's litigation accruals and estimates of possible loss or range of possible loss ("Possible Loss") may not represent the ultimate loss to the Company from legal proceedings. Guarantees The Company has agreed to guarantee or indemnify third parties for environmental and other liabilities pursuant to a variety of agreements, including asset and business divestiture agreements, leases, settlement agreements and various agreements with affiliated companies. Although many of these obligations contain monetary and/or time limitations, others do not provide such limitations. As indemnification obligations often depend on the occurrence of unpredictable future events, the future costs associated with them cannot be determined at this time. The Company has accrued for all probable and reasonably estimable losses associated with all known matters or claims that have been brought to its attention. These known obligations include the following: • Demerger Obligations In connection with the Hoechst demerger, the Company agreed to indemnify Hoechst, and its legal successors, for various liabilities under the demerger agreement, including for environmental liabilities associated with contamination arising either from environmental damage in general ("Category A") or under 19 divestiture agreements entered into by Hoechst prior to the demerger ("Category B") ( Note 10 ). The Company's obligation to indemnify Hoechst, and its legal successors, is capped under Category B at €250 million . If and to the extent the environmental damage should exceed €750 million in aggregate, the Company's obligation to indemnify Hoechst and its legal successors applies, but is then limited to 33.33% of the remediation cost without further limitations. Cumulative payments under the divestiture agreements as of June 30, 2015 are $69 million . Most of the divestiture agreements have become time barred and/or any notified environmental damage claims have been partially settled. The Company has also undertaken in the demerger agreement to indemnify Hoechst and its legal successors for (i) 33.33% of any and all Category A liabilities that result from Hoechst being held as the responsible party pursuant to public law or current or future environmental law or by third parties pursuant to private or public law related to contamination and (ii) liabilities that Hoechst is required to discharge, including tax liabilities, which are associated with businesses that were included in the demerger but were not demerged due to legal restrictions on the transfers of such items. These indemnities do not provide for any monetary or time limitations. The Company has not been requested by Hoechst to make any payments in connection with this indemnification. Accordingly, the Company has not made any payments to Hoechst and its legal successors. Based on the Company's evaluation of currently available information, including the lack of requests for indemnification, the Company cannot estimate the Possible Loss for the remaining demerger obligations, if any, in excess of amounts accrued. • Divestiture Obligations The Company and its predecessor companies agreed to indemnify third-party purchasers of former businesses and assets for various pre-closing conditions, as well as for breaches of representations, warranties and covenants. Such liabilities also include environmental liability, product liability, antitrust and other liabilities. These indemnifications and guarantees represent standard contractual terms associated with typical divestiture agreements and, other than environmental liabilities, the Company does not believe that they expose the Company to any significant risk ( Note 10 ). The Company has divested numerous businesses, investments and facilities through agreements containing indemnifications or guarantees to the purchasers. Many of the obligations contain monetary and/or time limitations, which extend through 2037 . The aggregate amount of outstanding indemnifications and guarantees provided for under these agreements is $209 million as of June 30, 2015 . Other agreements do not provide for any monetary or time limitations. Based on the Company's evaluation of currently available information, including the number of requests for indemnification or other payment received by the Company, the Company cannot estimate the Possible Loss for the remaining divestiture obligations, if any, in excess of amounts accrued. Purchase Obligations In the normal course of business, the Company enters into various purchase commitments for goods and services. The Company maintains a number of "take-or-pay" contracts for purchases of raw materials, utilities and other services. Certain of the contracts contain a contract termination buy-out provision that allows for the Company to exit the contracts for amounts less than the remaining take-or-pay obligations. The Company does not expect to incur any material losses under take-or-pay contractual arrangements. Additionally, the Company has other outstanding commitments representing maintenance and service agreements, energy and utility agreements, consulting contracts and software agreements. As of June 30, 2015 , the Company had unconditional purchase obligations of $2.9 billion , which extend through 2036 .

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Information	Segment Information Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Activities Eliminations Consolidated (In $ millions) Three Months Ended June 30, 2015 Net sales 346 249 287 707 (1) — (112 ) 1,477 Other (charges) gains, net ( Note 12 ) (3 ) (1 ) (1 ) (1 ) (4 ) — (10 ) Operating profit (loss) 67 77 28 54 (38 ) — 188 Equity in net earnings (loss) of affiliates 31 1 — 1 7 — 40 Depreciation and amortization 24 12 9 57 (3) 3 — 105 Capital expenditures 16 11 13 112 1 — 153 (2) Three Months Ended June 30, 2014 Net sales 389 289 333 901 (1) — (143 ) 1,769 Other (charges) gains, net ( Note 12 ) (1 ) — — 2 1 — 2 Operating profit (loss) 56 80 24 142 (43 ) — 259 Equity in net earnings (loss) of affiliates 45 7 — 14 35 — 101 Depreciation and amortization 27 10 12 19 4 — 72 Capital expenditures 11 22 6 90 2 — 131 (2) ______________________________ (1) Net sales for Acetyl Intermediates includes intersegment sales of $112 million and $143 million for the three months ended June 30, 2015 and 2014 , respectively. (2) Includes a decrease in accrued capital expenditures of $12 million and an increase of $6 million for the three months ended June 30, 2015 and 2014 , respectively. (3) See Note 12 - Other (Charges) Gains, Net for further information. Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Activities Eliminations Consolidated (In $ millions) Six Months Ended June 30, 2015 Net sales 689 476 569 1,420 (1) — (227 ) 2,927 Other (charges) gains, net ( Note 12 ) (4 ) (1 ) (2 ) (2 ) (6 ) — (15 ) Operating profit (loss) 126 139 57 185 (62 ) — 445 Equity in net earnings (loss) of affiliates 74 1 — 2 11 — 88 Depreciation and amortization 49 23 19 76 (3) 5 — 172 Capital expenditures 33 37 19 208 2 — 299 (2) As of June 30, 2015 Goodwill and intangible assets, net 344 253 51 193 — — 841 Total assets 2,443 1,485 832 2,594 1,634 — 8,988 Six Months Ended June 30, 2014 Net sales 762 591 645 1,742 (1) — (266 ) 3,474 Other (charges) gains, net ( Note 12 ) (1 ) — — 2 — — 1 Operating profit (loss) 113 179 44 239 (73 ) — 502 Equity in net earnings (loss) of affiliates 78 8 — 15 40 — 141 Depreciation and amortization 53 21 26 40 7 — 147 Capital expenditures 20 50 10 166 3 — 249 (2) As of December 31, 2014 Goodwill and intangible assets, net 358 261 54 208 — — 881 Total assets 2,484 1,491 823 2,495 1,525 — 8,818 ______________________________ (1) Net sales for Acetyl Intermediates includes intersegment sales of $227 million and $266 million for the six months ended June 30, 2015 and 2014 , respectively. (2) Includes a decrease in accrued capital expenditures of $28 million and $24 million for the six months ended June 30, 2015 and 2014 , respectively. (3) See Note 12 - Other (Charges) Gains, Net for further information.

Earnings (Loss) Per Share

Earnings (Loss) Per Share	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	Earnings (Loss) Per Share Three Months Ended Six Months Ended 2015 2014 2015 2014 (In $ millions, except share data) Amounts attributable to Celanese Corporation Earnings (loss) from continuing operations 207 259 443 455 Earnings (loss) from discontinued operations (2 ) — (2 ) — Net earnings (loss) 205 259 441 455 Weighted average shares - basic 153,480,175 155,751,779 153,349,071 156,124,714 Incremental shares attributable to equity awards 510,758 302,453 596,395 299,951 Weighted average shares - diluted 153,990,933 156,054,232 153,945,466 156,424,665 During the three and six months ended June 30, 2015 , 0 and 644 equity award shares, respectively, were not included in the computation of diluted net earnings per share as their effect would have been antidilutive. During the same periods in 2014, there were no anti-dilutive equity awards excluded from the computation of diluted net earnings per share.

Consolidating Guarantor Financi

Consolidating Guarantor Financial Information	6 Months Ended
	Jun. 30, 2015
Consolidating Guarantor Financial Information [Abstract]
Consolidating Guarantor Financial Information	Consolidating Guarantor Financial Information The Senior Notes were issued by Celanese US ("Issuer") and are guaranteed by Celanese Corporation ("Parent Guarantor") and the Subsidiary Guarantors ( Note 8 ). The Issuer and Subsidiary Guarantors are 100% owned subsidiaries of the Parent Guarantor. The Parent Guarantor and Subsidiary Guarantors have guaranteed the Notes fully and unconditionally and jointly and severally. For cash management purposes, the Company transfers cash between the Parent Guarantor, Issuer, Subsidiary Guarantors and non-guarantors through intercompany financing arrangements, contributions or declaration of dividends between the respective parent and its subsidiaries. The transfer of cash under these activities facilitates the ability of the recipient to make specified third-party payments for principal and interest on the Company's outstanding debt, Common Stock dividends and Common Stock repurchases. The unaudited interim consolidating statements of cash flows for the six months ended June 30, 2015 and 2014 present such intercompany financing activities, contributions and dividends consistent with how such activity would be presented in a stand-alone statement of cash flows. The Company has not presented separate financial information and other disclosures for each of its Subsidiary Guarantors because it believes such financial information and other disclosures would not provide investors with any additional information that would be material in evaluating the sufficiency of the guarantees. The unaudited interim consolidating financial statements for the Parent Guarantor, the Issuer, the Subsidiary Guarantors and the non-guarantors are as follows: CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Three Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 674 1,174 (371 ) 1,477 Cost of sales — — (474 ) (1,011 ) 383 (1,102 ) Gross profit — — 200 163 12 375 Selling, general and administrative expenses — — (29 ) (77 ) — (106 ) Amortization of intangible assets — — (2 ) (1 ) — (3 ) Research and development expenses — — (49 ) (10 ) — (59 ) Other (charges) gains, net — — — (10 ) — (10 ) Foreign exchange gain (loss), net — — — (3 ) — (3 ) Gain (loss) on disposition of businesses and assets, net — — (1 ) (5 ) — (6 ) Operating profit (loss) — — 119 57 12 188 Equity in net earnings (loss) of affiliates 206 244 114 35 (559 ) 40 Interest expense — (41 ) (8 ) (8 ) 27 (30 ) Interest income — 5 20 3 (27 ) 1 Dividend income - cost investments — — — 26 — 26 Other income (expense), net — — 1 1 — 2 Earnings (loss) from continuing operations before tax 206 208 246 114 (547 ) 227 Income tax (provision) benefit (1 ) (2 ) (29 ) 9 (1 ) (24 ) Earnings (loss) from continuing operations 205 206 217 123 (548 ) 203 Earnings (loss) from operation of discontinued operations — — (3 ) — — (3 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — (2 ) — — (2 ) Net earnings (loss) 205 206 215 123 (548 ) 201 Net (earnings) loss attributable to noncontrolling interests — — — 4 — 4 Net earnings (loss) attributable to Celanese Corporation 205 206 215 127 (548 ) 205 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Three Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 679 1,357 (267 ) 1,769 Cost of sales — — (501 ) (1,149 ) 289 (1,361 ) Gross profit — — 178 208 22 408 Selling, general and administrative expenses — — (18 ) (101 ) — (119 ) Amortization of intangible assets — — (2 ) (3 ) — (5 ) Research and development expenses — — (13 ) (11 ) — (24 ) Other (charges) gains, net — — — 2 — 2 Foreign exchange gain (loss), net — — — (1 ) — (1 ) Gain (loss) on disposition of businesses and assets, net — — (2 ) — — (2 ) Operating profit (loss) — — 143 94 22 259 Equity in net earnings (loss) of affiliates 259 282 48 89 (577 ) 101 Interest expense — (49 ) (6 ) (21 ) 36 (40 ) Interest income — 17 18 3 (36 ) 2 Dividend income - cost investments — — — 29 — 29 Other income (expense), net — — 1 — — 1 Earnings (loss) from continuing operations before tax 259 250 204 194 (555 ) 352 Income tax (provision) benefit — 9 (52 ) (46 ) (5 ) (94 ) Earnings (loss) from continuing operations 259 259 152 148 (560 ) 258 Earnings (loss) from operation of discontinued operations — — (1 ) — — (1 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — — — — — Net earnings (loss) 259 259 152 148 (560 ) 258 Net (earnings) loss attributable to noncontrolling interests — — — 1 — 1 Net earnings (loss) attributable to Celanese Corporation 259 259 152 149 (560 ) 259 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 1,332 2,307 (712 ) 2,927 Cost of sales — — (905 ) (1,995 ) 729 (2,171 ) Gross profit — — 427 312 17 756 Selling, general and administrative expenses — — (53 ) (151 ) — (204 ) Amortization of intangible assets — — (3 ) (3 ) — (6 ) Research and development expenses — — (59 ) (20 ) — (79 ) Other (charges) gains, net — — (3 ) (12 ) — (15 ) Foreign exchange gain (loss), net — — — — — — Gain (loss) on disposition of businesses and assets, net — — (3 ) (4 ) — (7 ) Operating profit (loss) — — 306 122 17 445 Equity in net earnings (loss) of affiliates 441 523 206 75 (1,157 ) 88 Interest expense — (84 ) (13 ) (20 ) 60 (57 ) Interest income — 13 39 9 (60 ) 1 Dividend income - cost investments — — — 54 — 54 Other income (expense), net — — 1 1 — 2 Earnings (loss) from continuing operations before tax 441 452 539 241 (1,140 ) 533 Income tax (provision) benefit — (11 ) (82 ) (1 ) (2 ) (96 ) Earnings (loss) from continuing operations 441 441 457 240 (1,142 ) 437 Earnings (loss) from operation of discontinued operations — — (3 ) — — (3 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — (2 ) — — (2 ) Net earnings (loss) 441 441 455 240 (1,142 ) 435 Net (earnings) loss attributable to noncontrolling interests — — — 6 — 6 Net earnings (loss) attributable to Celanese Corporation 441 441 455 246 (1,142 ) 441 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 1,386 2,657 (569 ) 3,474 Cost of sales — — (962 ) (2,300 ) 574 (2,688 ) Gross profit — — 424 357 5 786 Selling, general and administrative expenses — — (27 ) (196 ) — (223 ) Amortization of intangible assets — — (4 ) (7 ) — (11 ) Research and development expenses — — (26 ) (20 ) — (46 ) Other (charges) gains, net — — — 1 — 1 Foreign exchange gain (loss), net — — — (2 ) — (2 ) Gain (loss) on disposition of businesses and assets, net — — (5 ) 2 — (3 ) Operating profit (loss) — — 362 135 5 502 Equity in net earnings (loss) of affiliates 454 510 78 125 (1,026 ) 141 Interest expense — (95 ) (12 ) (40 ) 68 (79 ) Interest income — 31 35 4 (68 ) 2 Dividend income - cost investments — — — 58 — 58 Other income (expense), net — — 4 (3 ) — 1 Earnings (loss) from continuing operations before tax 454 446 467 279 (1,021 ) 625 Income tax (provision) benefit 1 8 (122 ) (57 ) (2 ) (172 ) Earnings (loss) from continuing operations 455 454 345 222 (1,023 ) 453 Earnings (loss) from operation of discontinued operations — — (1 ) — — (1 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — — — — — Net earnings (loss) 455 454 345 222 (1,023 ) 453 Net (earnings) loss attributable to noncontrolling interests — — — 2 — 2 Net earnings (loss) attributable to Celanese Corporation 455 454 345 224 (1,023 ) 455 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 205 206 215 123 (548 ) 201 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities (1 ) (1 ) (1 ) (1 ) 3 (1 ) Foreign currency translation 37 37 56 74 (167 ) 37 Gain (loss) on cash flow hedges 1 1 1 1 (3 ) 1 Pension and postretirement benefits 4 4 3 4 (11 ) 4 Total other comprehensive income (loss), net of tax 41 41 59 78 (178 ) 41 Total comprehensive income (loss), net of tax 246 247 274 201 (726 ) 242 Comprehensive (income) loss attributable to noncontrolling interests — — — 4 — 4 Comprehensive income (loss) attributable to Celanese Corporation 246 247 274 205 (726 ) 246 Three Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 259 259 152 148 (560 ) 258 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities — — — — — — Foreign currency translation (22 ) (22 ) (9 ) 2 29 (22 ) Gain (loss) on cash flow hedges (3 ) (3 ) — (3 ) 6 (3 ) Pension and postretirement benefits (14 ) (14 ) (14 ) — 28 (14 ) Total other comprehensive income (loss), net of tax (39 ) (39 ) (23 ) (1 ) 63 (39 ) Total comprehensive income (loss), net of tax 220 220 129 147 (497 ) 219 Comprehensive (income) loss attributable to noncontrolling interests — — — 1 — 1 Comprehensive income (loss) attributable to Celanese Corporation 220 220 129 148 (497 ) 220 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 441 441 455 240 (1,142 ) 435 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities (1 ) (1 ) (1 ) (1 ) 3 (1 ) Foreign currency translation (119 ) (119 ) (114 ) (137 ) 370 (119 ) Gain (loss) on cash flow hedges 3 3 6 3 (12 ) 3 Pension and postretirement benefits 1 1 — 4 (5 ) 1 Total other comprehensive income (loss), net of tax (116 ) (116 ) (109 ) (131 ) 356 (116 ) Total comprehensive income (loss), net of tax 325 325 346 109 (786 ) 319 Comprehensive (income) loss attributable to noncontrolling interests — — — 6 — 6 Comprehensive income (loss) attributable to Celanese Corporation 325 325 346 115 (786 ) 325 Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 455 454 345 222 (1,023 ) 453 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities — — — — — — Foreign currency translation (17 ) (17 ) 7 (14 ) 24 (17 ) Gain (loss) on cash flow hedges (6 ) (6 ) — (3 ) 9 (6 ) Pension and postretirement benefits (26 ) (26 ) (26 ) — 52 (26 ) Total other comprehensive income (loss), net of tax (49 ) (49 ) (19 ) (17 ) 85 (49 ) Total comprehensive income (loss), net of tax 406 405 326 205 (938 ) 404 Comprehensive (income) loss attributable to noncontrolling interests — — — 2 — 2 Comprehensive income (loss) attributable to Celanese Corporation 406 405 326 207 (938 ) 406 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED CONSOLIDATING BALANCE SHEET As of June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) ASSETS Current Assets Cash and cash equivalents 1 — 115 872 — 988 Trade receivables - third party and affiliates — — 182 888 (197 ) 873 Non-trade receivables, net 36 974 2,270 382 (3,436 ) 226 Inventories, net — — 250 595 (83 ) 762 Deferred income taxes — — 26 11 (22 ) 15 Marketable securities, at fair value — — 29 — — 29 Other assets — — 17 23 (10 ) 30 Total current assets 37 974 2,889 2,771 (3,748 ) 2,923 Investments in affiliates 3,041 6,216 4,199 721 (13,356 ) 821 Property, plant and equipment, net — — 1,022 2,749 — 3,771 Deferred income taxes — 16 237 9 (2 ) 260 Other assets — 102 154 395 (279 ) 372 Goodwill — — 314 402 — 716 Intangible assets, net — — 74 51 — 125 Total assets 3,078 7,308 8,889 7,098 (17,385 ) 8,988 LIABILITIES AND EQUITY Current Liabilities Short-term borrowings and current installments of long-term debt - third party and affiliates — 1,972 700 249 (2,798 ) 123 Trade payables - third party and affiliates — — 354 579 (197 ) 736 Other liabilities 2 18 165 274 (161 ) 298 Deferred income taxes — 22 — 6 (22 ) 6 Income taxes payable — — 542 71 (508 ) 105 Total current liabilities 2 2,012 1,761 1,179 (3,686 ) 1,268 Noncurrent Liabilities Long-term debt — 2,234 373 204 (259 ) 2,552 Deferred income taxes — 14 — 115 (2 ) 127 Uncertain tax positions — 7 29 128 — 164 Benefit obligations — — 863 267 — 1,130 Other liabilities — — 119 170 (27 ) 262 Total noncurrent liabilities — 2,255 1,384 884 (288 ) 4,235 Total Celanese Corporation stockholders' equity 3,076 3,041 5,744 4,626 (13,411 ) 3,076 Noncontrolling interests — — — 409 — 409 Total equity 3,076 3,041 5,744 5,035 (13,411 ) 3,485 Total liabilities and equity 3,078 7,308 8,889 7,098 (17,385 ) 8,988 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED CONSOLIDATING BALANCE SHEET As of December 31, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) ASSETS Current Assets Cash and cash equivalents — — 110 670 — 780 Trade receivables - third party and affiliates — — 184 821 (204 ) 801 Non-trade receivables, net 35 477 2,265 407 (2,943 ) 241 Inventories, net — — 268 613 (99 ) 782 Deferred income taxes — — 39 12 (22 ) 29 Marketable securities, at fair value — — 32 — — 32 Other assets — 6 12 34 (19 ) 33 Total current assets 35 483 2,910 2,557 (3,287 ) 2,698 Investments in affiliates 2,784 5,889 4,349 613 (12,759 ) 876 Property, plant and equipment, net — — 1,029 2,704 — 3,733 Deferred income taxes — 16 211 26 — 253 Other assets — 674 146 400 (843 ) 377 Goodwill — — 314 435 — 749 Intangible assets, net — — 73 59 — 132 Total assets 2,819 7,062 9,032 6,794 (16,889 ) 8,818 LIABILITIES AND EQUITY Current Liabilities Short-term borrowings and current installments of long-term debt - third party and affiliates — 1,894 184 290 (2,231 ) 137 Trade payables - third party and affiliates — — 413 548 (204 ) 757 Other liabilities 1 34 225 402 (230 ) 432 Deferred income taxes — 22 — 7 (22 ) 7 Income taxes payable — — 484 45 (524 ) 5 Total current liabilities 1 1,950 1,306 1,292 (3,211 ) 1,338 Noncurrent Liabilities Long-term debt — 2,269 900 208 (769 ) 2,608 Deferred income taxes — — — 141 — 141 Uncertain tax positions — 6 16 137 — 159 Benefit obligations — — 923 288 — 1,211 Other liabilities — 53 121 192 (83 ) 283 Total noncurrent liabilities — 2,328 1,960 966 (852 ) 4,402 Total Celanese Corporation stockholders' equity 2,818 2,784 5,766 4,276 (12,826 ) 2,818 Noncontrolling interests — — — 260 — 260 Total equity 2,818 2,784 5,766 4,536 (12,826 ) 3,078 Total liabilities and equity 2,819 7,062 9,032 6,794 (16,889 ) 8,818 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF CASH FLOWS Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net cash provided by (used in) operating activities 83 45 285 306 (166 ) 553 Investing Activities Capital expenditures on property, plant and equipment — — (74 ) (43 ) — (117 ) Acquisitions, net of cash acquired — — (3 ) — — (3 ) Proceeds from sale of businesses and assets, net — — — — — — Capital expenditures related to Fairway Methanol LLC — — (9 ) (201 ) — (210 ) Return of capital from subsidiary — — — — — — Contributions to subsidiary — — (60 ) — 60 — Intercompany loan receipts (disbursements) — 3 (25 ) (15 ) 37 — Other, net — — (12 ) (12 ) — (24 ) Net cash provided by (used in) investing activities — 3 (183 ) (271 ) 97 (354 ) Financing Activities Net change in short-term borrowings with maturities of 3 months or less — 25 (1 ) (1 ) (25 ) (2 ) Proceeds from short-term borrowings — — — 26 — 26 Repayments of short-term borrowings — — — (39 ) — (39 ) Proceeds from long-term debt — 15 — — (15 ) — Repayments of long-term debt — (5 ) (3 ) (7 ) 3 (12 ) Purchases of treasury stock, including related fees — — — — — — Dividends to parent — (83 ) (83 ) — 166 — Contributions from parent — — — 60 (60 ) — Stock option exercises 2 — — — — 2 Series A common stock dividends (84 ) — — — — (84 ) Return of capital to parent — — — — — — Contributions from noncontrolling interests — — — 155 — 155 Other, net — — (10 ) (1 ) — (11 ) Net cash provided by (used in) financing activities (82 ) (48 ) (97 ) 193 69 35 Exchange rate effects on cash and cash equivalents — — — (26 ) — (26 ) Net increase (decrease) in cash and cash equivalents 1 — 5 202 — 208 Cash and cash equivalents as of beginning of period — — 110 670 — 780 Cash and cash equivalents as of end of period 1 — 115 872 — 988 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF CASH FLOWS Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net cash provided by (used in) operating activities 169 109 333 142 (336 ) 417 Investing Activities Capital expenditures on property, plant and equipment — — (100 ) (30 ) — (130 ) Acquisitions, net of cash acquired — — — — — — Proceeds from sale of businesses and assets, net — — — — — — Capital expenditures related to Fairway Methanol LLC — — (34 ) (109 ) — (143 ) Return of capital from subsidiary — — 51 — (51 ) — Contributions to subsidiary — — (97 ) — 97 — Intercompany loan receipts (disbursements) — 3 (61 ) — 58 — Other, net — — (6 ) (4 ) — (10 ) Net cash provided by (used in) investing activities — 3 (247 ) (143 ) 104 (283 ) Financing Activities Net change in short-term borrowings with maturities of 3 months or less — 61 10 (9 ) (61 ) 1 Proceeds from short-term borrowings — — — 25 — 25 Repayments of short-term borrowings — — — (43 ) — (43 ) Proceeds from long-term debt — — — — — — Repayments of long-term debt — (5 ) (3 ) (8 ) 3 (13 ) Purchases of treasury stock, including related fees (103 ) — — — — (103 ) Dividends to parent — (168 ) (168 ) — 336 — Contributions from parent — — — 97 (97 ) — Stock option exercises 3 — — — — 3 Series A common stock dividends (67 ) — — — — (67 ) Return of capital to parent — — — (51 ) 51 — Contributions from noncontrolling interests — — — 148 — 148 Other, net — — (1 ) — — (1 ) Net cash provided by (used in) financing activities (167 ) (112 ) (162 ) 159 232 (50 ) Exchange rate effects on cash and cash equivalents — — — (4 ) — (4 ) Net increase (decrease) in cash and cash equivalents 2 — (76 ) 154 — 80 Cash and cash equivalents as of beginning of period — — 284 700 — 984 Cash and cash equivalents as of end of period 2 — 208 854 — 1,064

Description of the Company an27

Description of the Company and Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Estimates and Assumptions	Estimates and Assumptions The preparation of unaudited interim consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the unaudited interim consolidated financial statements and the reported amounts of net sales, expenses and allocated charges during the reporting period. Significant estimates pertain to impairments of goodwill, intangible assets and other long-lived assets, purchase price allocations, restructuring costs and other (charges) gains, net, income taxes, pension and other postretirement benefits, asset retirement obligations, environmental liabilities and loss contingencies, among others. Actual results could differ from those estimates.

Ventures and Variable Interes28

Ventures and Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2015
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities	The carrying amount of the assets and liabilities associated with Fairway included in the unaudited consolidated balance sheets are as follows: As of As of (In $ millions) Cash and cash equivalents 1 1 Property, plant and equipment 716 535 Other assets 38 24 Total assets (1) 755 560 Trade payables 2 — Current liabilities (2) 24 40 Long-term debt 6 — Total liabilities 32 40 ______________________________ (1) Assets can only be used to settle the obligations of Fairway. (2) Amounts owed by Fairway to the Company for reimbursement of expenditures.
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Schedule of Variable Interest Entities	The carrying amount of the assets and liabilities associated with the obligations to nonconsolidated VIEs, as well as the maximum exposure to loss relating to these nonconsolidated VIEs are as follows: As of As of (In $ millions) Property, plant and equipment, net 90 96 Trade payables 49 43 Current installments of long-term debt 9 9 Long-term debt 120 125 Total liabilities 178 177 Maximum exposure to loss 315 291 The difference between the total liabilities associated with obligations to unconsolidated VIEs and the maximum exposure to loss primarily represents take-or-pay obligations for services included in the Company's unconditional purchase obligations ( Note 16 ).

Marketable Securities, at Fai29

Marketable Securities, at Fair Value (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities	The Company's nonqualified trusts hold available-for-sale securities for funding requirements of the Company's nonqualified pension plans ( Note 9 ) as follows: As of As of (In $ millions) Amortized cost 29 32 Gross unrealized gain — — Gross unrealized loss — — Fair value 29 32

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2015
Inventory Disclosure [Abstract]
Schedule of Inventories	As of As of (In $ millions) Finished goods 559 579 Work-in-process 51 53 Raw materials and supplies 152 150 Total 762 782

Current Other Liabilities (Tabl

Current Other Liabilities (Tables)	6 Months Ended
	Jun. 30, 2015
Other Liabilities, Current [Abstract]
Schedule of Current Other Liabilities	As of As of (In $ millions) Asset retirement obligations 7 9 Benefit obligations ( Note 9 ) 33 28 Customer rebates 33 53 Derivatives ( Note 14 ) 5 13 Environmental ( Note 10 ) 18 21 Insurance 9 9 Interest 15 19 Restructuring ( Note 12 ) 15 21 Salaries and benefits 79 129 Sales and use tax/foreign withholding tax payable 16 13 Uncertain tax positions ( Note 13 ) — 59 Other 68 58 Total 298 432

Noncurrent Other Liabilities (T

Noncurrent Other Liabilities (Tables)	6 Months Ended
	Jun. 30, 2015
Other Liabilities, Noncurrent [Abstract]
Schedule of Noncurrent Other Liabilities	As of As of (In $ millions) Asset retirement obligations 29 28 Deferred proceeds 43 47 Deferred revenue 18 21 Derivatives ( Note 14 ) — 10 Environmental ( Note 10 ) 61 63 Income taxes payable 12 13 Insurance 52 51 Other 47 50 Total 262 283

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Schedule of Short-term Debt	As of As of (In $ millions) Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates Current installments of long-term debt 26 25 Short-term borrowings, including amounts due to affiliates (1) 67 77 Accounts receivable securitization facility (2) 30 35 Total 123 137 ______________________________ (1) The weighted average interest rate was 4.5% and 4.7% as of June 30, 2015 and December 31, 2014 , respectively. (2) The weighted average interest rate was 0.7% as of June 30, 2015 and December 31, 2014 .
Schedule of Long-term Debt	As of As of (In $ millions) Long-Term Debt Senior credit facilities - Term C-2 loan due 2016 31 34 Senior credit facilities - Term C-3 loan due 2018 886 906 Senior unsecured notes due 2019, interest rate of 3.250% 336 364 Senior unsecured notes due 2021, interest rate of 5.875% 400 400 Senior unsecured notes due 2022, interest rate of 4.625% 500 500 Pollution control and industrial revenue bonds due at various dates through 2030, interest rates ranging from 5.7% to 6.7% 169 169 Obligations under capital leases due at various dates through 2054 256 260 Subtotal 2,578 2,633 Current installments of long-term debt (26 ) (25 ) Total 2,552 2,608
Schedule of Senior Notes	The Company has outstanding senior unsecured notes issued in public offerings registered under the Securities Act of 1933, as amended, as follows (collectively, the "Senior Notes"): Senior Notes Issue Date Principal Interest Rate Interest Pay Dates Maturity Date (In millions) (In percentages) 3.250% Notes September 2014 €300 3.250 April 15 October 15 October 15, 2019 4.625% Notes November 2012 $500 4.625 March 15 September 15 November 15, 2022 5.875% Notes May 2011 $400 5.875 June 15 December 15 June 15, 2021
Schedule of First Lien Senior Secured Leverage Ratios	The Company's amended first lien senior secured leverage ratios under the revolving credit facility are as follows: As of June 30, 2015 Maximum Estimate Estimate, If Fully Drawn 3.90 0.61 1.18
Schedule of Balances Available for Borrowing	The Company's balances available for borrowing are as follows: As of (In $ millions) Revolving Credit Facility Borrowings outstanding — Letters of credit issued — Available for borrowing 900 Accounts Receivable Securitization Facility Borrowings outstanding 30 (1) Letters of credit issued 74 Available for borrowing 16 Total borrowing base 120 Maximum borrowing base 135 (2) ______________________________ (1) The Company repaid $15 million of borrowings outstanding during the six months ended June 30, 2015 . (2) Outstanding accounts receivable transferred by the Originators to the Transferor was $173 million .

Benefit Obligations (Tables)

Benefit Obligations (Tables)	6 Months Ended
	Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Periodic Benefit Costs Recognized	The components of net periodic benefit cost are as follows: Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 Pension Post-retirement Pension Post-retirement Pension Post-retirement Pension Post-retirement (In $ millions) (In $ millions) Service cost 3 1 3 1 6 1 6 1 Interest cost 36 — 43 — 71 1 85 2 Expected return on plan assets (53 ) — (54 ) — (105 ) — (108 ) — Recognized actuarial (gain) loss — 1 — — — 1 — — Amortization of prior service cost (credit), net — — — (22 ) (1) — — — (41 ) (1) Special termination benefit — — — — 1 — — — Total (14 ) 2 (8 ) (21 ) (27 ) 3 (17 ) (38 ) ______________________________ (1) Primarily related to the elimination of eligibility for all current and future US employees to participate in the Company's US postretirement health care plan.
Schedule of Company Commitments to Fund Benefit Obligations	Benefit obligation funding is as follows: As of Total Expected 2015 (In $ millions) Cash contributions to defined benefit pension plans 27 28 Benefit payments to nonqualified pension plans 11 22 Benefit payments to other postretirement benefit plans 3 17 Cash contributions to German multiemployer defined benefit pension plans (1) 3 6 ______________________________ (1) The Company makes contributions based on specified percentages of employee contributions.

Environmental (Tables)

Environmental (Tables)	6 Months Ended
	Jun. 30, 2015
Environmental Remediation Obligations [Abstract]
Schedule of Environmental Remediation Reserves	The components of environmental remediation reserves are as follows: As of As of (In $ millions) Demerger obligations ( Note 16 ) 24 25 Divestiture obligations ( Note 16 ) 19 21 Active sites 20 23 US Superfund sites 14 12 Other environmental remediation reserves 2 3 Total 79 84

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity Note [Abstract]
Schedule of Dividend Increases	The Company's Board of Directors approved increases in the Company's Common Stock cash dividend rates as follows: Increase Quarterly Common Stock Cash Dividend Annual Common Stock Cash Dividend Effective Date (In percentages) (In $ per share) April 2014 39 0.25 1.00 May 2014 April 2015 20 0.30 1.20 May 2015
Schedule of Treasury Stock	Six Months Ended Total From 2015 2014 Shares repurchased — (1) 1,870,297 20,667,195 (2) Average purchase price per share $ — $ 55.13 $ 44.27 Cash paid for repurchased shares (in millions) $ — $ 103 $ 915 Aggregate Board of Directors repurchase authorizations (in millions) (3) $ — $ 172 $ 1,366 ______________________________ (1) Excludes 9,264 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares. (2) Excludes 21,108 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares. (3) These authorizations give management discretion in determining the timing and conditions under which shares may be repurchased. This repurchase program began in February 2008 and does not have an expiration date.
Schedule of Components of Other Comprehensive Income (Loss), Net	Three Months Ended June 30, 2015 2014 Gross Amount Income Tax (Provision) Benefit Net Amount Gross Amount Income Tax (Provision) Benefit Net Amount (In $ millions) Unrealized gain (loss) on marketable securities — (1 ) (1 ) — — — Foreign currency translation 33 4 37 (12 ) (10 ) (22 ) Gain (loss) on cash flow hedges 1 — 1 (3 ) — (3 ) Pension and postretirement benefits — 4 4 (22 ) 8 (14 ) Total 34 7 41 (37 ) (2 ) (39 ) Six Months Ended June 30, 2015 2014 Gross Income Net Gross Income Net (In $ millions) Unrealized gain (loss) on marketable securities — (1 ) (1 ) — — — Foreign currency translation (117 ) (2 ) (119 ) (15 ) (2 ) (17 ) Gain (loss) on cash flow hedges 4 (1 ) 3 (3 ) (3 ) (6 ) Pension and postretirement benefits — 1 1 (41 ) 15 (26 ) Total (113 ) (3 ) (116 ) (59 ) 10 (49 )
Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net	Adjustments to Accumulated other comprehensive income (loss), net, are as follows: Unrealized Gain (Loss) on Marketable Securities ( Note 4 ) Foreign Currency Translation Gain (Loss) on Cash Flow Hedges ( Note 14 ) Pension and Postretire- ment Benefits ( Note 9 ) Accumulated Other Comprehensive Income (Loss), Net (In $ millions) As of December 31, 2014 1 (151 ) (4 ) (11 ) (165 ) Other comprehensive income (loss) before reclassifications — (117 ) (1 ) — (118 ) Amounts reclassified from accumulated other comprehensive income (loss) — — 5 — 5 Income tax (provision) benefit (1 ) (2 ) (1 ) 1 (3 ) As of June 30, 2015 — (270 ) (1 ) (10 ) (281 )

Other (Charges) Gains, Net (Tab

Other (Charges) Gains, Net (Tables)	6 Months Ended
	Jun. 30, 2015
Restructuring and Related Activities [Abstract]
Schedule of Other (Charges) Gains, Net	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (In $ millions) Employee termination benefits (10 ) (1 ) (14 ) (3 ) Plant/office closures — — — 1 Commercial disputes — — (1 ) — Other — 3 — 3 Total (10 ) 2 (15 ) 1
Schedule of Restructuring Reserves	The changes in the restructuring reserves by business segment are as follows: Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Total (In $ millions) Employee Termination Benefits As of December 31, 2014 4 1 1 5 3 14 Additions 4 1 2 1 6 14 Cash payments (1 ) (1 ) (1 ) (3 ) — (6 ) Other changes (3 ) — — — (3 ) (6 ) Exchange rate changes (1 ) — — (1 ) — (2 ) As of June 30, 2015 3 1 2 2 6 14 Plant/Office Closures As of December 31, 2014 — — — 7 — 7 Additions — — — — — — Cash payments — — — (5 ) — (5 ) Other changes — — — — — — Exchange rate changes — — — (1 ) — (1 ) As of June 30, 2015 — — — 1 — 1 Total 3 1 2 3 6 15

Income Taxes (Tables)

Income Taxes (Tables)	6 Months Ended
	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Schedule of Effective Tax Rate	Three Months Ended June 30, Six Months Ended June 30, 2015 2014 2015 2014 (In percentages) Effective income tax rate 11 27 18 28

Derivative Financial Instrume39

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Swap Derivatives	The Company fixes the LIBOR portion of its US dollar denominated variable rate borrowings ( Note 8 ) with interest rate swap derivative arrangements as follows: As of June 30, 2015 Notional Value Effective Date Expiration Date Fixed Rate (In $ millions) (In percentages) 500 January 2, 2014 January 2, 2016 0.94 As of December 31, 2014 Notional Value Effective Date Expiration Date Fixed Rate (In $ millions) (In percentages) 500 January 2, 2014 January 2, 2016 1.02
Schedule of Notional Amounts of Foreign Currency Derivatives	Gross notional values of the foreign currency forwards and swaps are as follows: As of As of (In $ millions) Total 609 1,336
Schedule of Changes in Fair Value of Derivatives	Information regarding changes in the fair value of the Company's derivative and non-derivative instruments is as follows: Gain (Loss) Recognized in Other Comprehensive Income (Loss) Gain (Loss) Recognized in Earnings (Loss) Three Months Ended June 30, Statement of Operations Classification 2015 2014 2015 2014 (In $ millions) Designated as Cash Flow Hedges Interest rate swaps — (1 ) — (2 ) Interest expense Cross-currency swaps — (4 ) — 3 Other income (expense), net; Interest expense Total — (5 ) — 1 Designated as Net Investment Hedges 3.250% Notes (13 ) — — — Foreign currency translation Term C-2 and Term C-3 loans (8 ) — — — Foreign currency translation Total (21 ) — — — Not Designated as Hedges Interest rate swaps — — (1 ) — Interest expense Foreign currency forwards and swaps — — — (3 ) Foreign exchange gain (loss), net; Other income (expense), net Total — — (1 ) (3 ) Gain (Loss) Recognized in Other Comprehensive Income (Loss) Gain (Loss) Recognized in Earnings (Loss) Six Months Ended June 30, Statement of Operations Classification 2015 2014 2015 2014 (In $ millions) Designated as Cash Flow Hedges Interest rate swaps — (1 ) — (2 ) Interest expense Cross-currency swaps — (4 ) 46 3 Other income (expense), net; Interest expense Total — (5 ) 46 1 Designated as Net Investment Hedges 3.250% Notes 28 — — — Foreign currency translation Term C-2 and Term C-3 loans (1) — — — — Foreign currency translation Total 28 — — — Not Designated as Hedges Interest rate swaps — — (1 ) — Interest expense Foreign currency forwards and swaps — — (68 ) (5 ) Foreign exchange gain (loss), net; Other income (expense), net Total — — (69 ) (5 ) ______________________________ (1) During the three months ended March 31, 2015, the Company designated the Euro-based principal amount of its Term C-2 loan and its Term C-3 loan as a net investment hedge of its investment in a wholly-owned international subsidiary whose functional currency is the Euro to mitigate the volatility caused by the changes in foreign currency exchange rates of the Euro with respect to the US dollar.
Offsetting Assets	Information regarding the gross amounts of the Company's derivative instruments and the amounts offset in the unaudited consolidated balance sheets is as follows: As of As of (In $ millions) Derivative Assets Gross amount recognized 3 55 Gross amount offset in the consolidated balance sheets — — Net amount presented in the consolidated balance sheets 3 55 Gross amount not offset in the consolidated balance sheets 1 4 Net amount 2 51
Offsetting Liabilities	As of As of (In $ millions) Derivative Liabilities Gross amount recognized 5 23 Gross amount offset in the consolidated balance sheets — — Net amount presented in the consolidated balance sheets 5 23 Gross amount not offset in the consolidated balance sheets 1 4 Net amount 4 19

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	Fair Value Measurement Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Total Balance Sheet Classification (In $ millions) As of June 30, 2015 Mutual funds 29 — 29 Marketable securities, at fair value Derivatives Not Designated as Hedges Foreign currency forwards and swaps — 3 3 Current Other assets Total assets 29 3 32 Designated as Net Investment Hedges 3.250% Notes (1) — — — Long-term Debt Term C-2 and Term C-3 loans (1) — — — Long-term Debt Derivatives Not Designated as Hedges Interest rate swaps — (2 ) (2 ) Current Other liabilities Foreign currency forwards and swaps — (3 ) (3 ) Current Other liabilities Total liabilities — (5 ) (5 ) As of December 31, 2014 Mutual funds 32 — 32 Marketable securities, at fair value Derivatives Designated as Cash Flow Hedges Cross-currency swaps — 9 9 Current Other assets Cross-currency swaps — 43 43 Noncurrent Other assets Derivatives Not Designated as Hedges Foreign currency forwards and swaps — 3 3 Current Other assets Total assets 32 55 87 Derivatives Designated as Cash Flow Hedges Cross-currency swaps — (2 ) (2 ) Current Other liabilities Cross-currency swaps — (10 ) (10 ) Noncurrent Other liabilities Designated as a Net Investment Hedge 3.250% Notes (1) — — — Long-term Debt Derivatives Not Designated as Hedges Interest rate swaps — (4 ) (4 ) Current Other liabilities Foreign currency forwards and swaps — (7 ) (7 ) Current Other liabilities Total liabilities — (23 ) (23 ) ______________________________ (1) Included in the unaudited consolidated balance sheets at carrying amount.
Schedule of Carrying Values and Fair Values of Financial Instruments	Carrying values and fair values of financial instruments that are not carried at fair value are as follows: Fair Value Measurement Carrying Amount Significant Other Observable Inputs (Level 2) Unobservable Inputs (Level 3) Total (In $ millions) As of June 30, 2015 Cost investments 147 — — — Insurance contracts in nonqualified trusts 52 52 — 52 Long-term debt, including current installments of long-term debt 2,578 2,364 256 2,620 As of December 31, 2014 Cost investments 145 — — — Insurance contracts in nonqualified trusts 56 56 — 56 Long-term debt, including current installments of long-term debt 2,633 2,398 260 2,658

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Schedule of Business Segments	Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Activities Eliminations Consolidated (In $ millions) Three Months Ended June 30, 2015 Net sales 346 249 287 707 (1) — (112 ) 1,477 Other (charges) gains, net ( Note 12 ) (3 ) (1 ) (1 ) (1 ) (4 ) — (10 ) Operating profit (loss) 67 77 28 54 (38 ) — 188 Equity in net earnings (loss) of affiliates 31 1 — 1 7 — 40 Depreciation and amortization 24 12 9 57 (3) 3 — 105 Capital expenditures 16 11 13 112 1 — 153 (2) Three Months Ended June 30, 2014 Net sales 389 289 333 901 (1) — (143 ) 1,769 Other (charges) gains, net ( Note 12 ) (1 ) — — 2 1 — 2 Operating profit (loss) 56 80 24 142 (43 ) — 259 Equity in net earnings (loss) of affiliates 45 7 — 14 35 — 101 Depreciation and amortization 27 10 12 19 4 — 72 Capital expenditures 11 22 6 90 2 — 131 (2) ______________________________ (1) Net sales for Acetyl Intermediates includes intersegment sales of $112 million and $143 million for the three months ended June 30, 2015 and 2014 , respectively. (2) Includes a decrease in accrued capital expenditures of $12 million and an increase of $6 million for the three months ended June 30, 2015 and 2014 , respectively. (3) See Note 12 - Other (Charges) Gains, Net for further information. Advanced Engineered Materials Consumer Specialties Industrial Specialties Acetyl Intermediates Other Activities Eliminations Consolidated (In $ millions) Six Months Ended June 30, 2015 Net sales 689 476 569 1,420 (1) — (227 ) 2,927 Other (charges) gains, net ( Note 12 ) (4 ) (1 ) (2 ) (2 ) (6 ) — (15 ) Operating profit (loss) 126 139 57 185 (62 ) — 445 Equity in net earnings (loss) of affiliates 74 1 — 2 11 — 88 Depreciation and amortization 49 23 19 76 (3) 5 — 172 Capital expenditures 33 37 19 208 2 — 299 (2) As of June 30, 2015 Goodwill and intangible assets, net 344 253 51 193 — — 841 Total assets 2,443 1,485 832 2,594 1,634 — 8,988 Six Months Ended June 30, 2014 Net sales 762 591 645 1,742 (1) — (266 ) 3,474 Other (charges) gains, net ( Note 12 ) (1 ) — — 2 — — 1 Operating profit (loss) 113 179 44 239 (73 ) — 502 Equity in net earnings (loss) of affiliates 78 8 — 15 40 — 141 Depreciation and amortization 53 21 26 40 7 — 147 Capital expenditures 20 50 10 166 3 — 249 (2) As of December 31, 2014 Goodwill and intangible assets, net 358 261 54 208 — — 881 Total assets 2,484 1,491 823 2,495 1,525 — 8,818 ______________________________ (1) Net sales for Acetyl Intermediates includes intersegment sales of $227 million and $266 million for the six months ended June 30, 2015 and 2014 , respectively. (2) Includes a decrease in accrued capital expenditures of $28 million and $24 million for the six months ended June 30, 2015 and 2014 , respectively. (3) See Note 12 - Other (Charges) Gains, Net for further information.

Earnings (Loss) Per Share (Tabl

Earnings (Loss) Per Share (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings (Loss) Per Share	Three Months Ended Six Months Ended 2015 2014 2015 2014 (In $ millions, except share data) Amounts attributable to Celanese Corporation Earnings (loss) from continuing operations 207 259 443 455 Earnings (loss) from discontinued operations (2 ) — (2 ) — Net earnings (loss) 205 259 441 455 Weighted average shares - basic 153,480,175 155,751,779 153,349,071 156,124,714 Incremental shares attributable to equity awards 510,758 302,453 596,395 299,951 Weighted average shares - diluted 153,990,933 156,054,232 153,945,466 156,424,665

Consolidating Guarantor Finan43

Consolidating Guarantor Financial Information (Tables)	6 Months Ended
	Jun. 30, 2015
Consolidating Guarantor Financial Information [Abstract]
Schedule of Consolidating Statement of Operations	CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Three Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 674 1,174 (371 ) 1,477 Cost of sales — — (474 ) (1,011 ) 383 (1,102 ) Gross profit — — 200 163 12 375 Selling, general and administrative expenses — — (29 ) (77 ) — (106 ) Amortization of intangible assets — — (2 ) (1 ) — (3 ) Research and development expenses — — (49 ) (10 ) — (59 ) Other (charges) gains, net — — — (10 ) — (10 ) Foreign exchange gain (loss), net — — — (3 ) — (3 ) Gain (loss) on disposition of businesses and assets, net — — (1 ) (5 ) — (6 ) Operating profit (loss) — — 119 57 12 188 Equity in net earnings (loss) of affiliates 206 244 114 35 (559 ) 40 Interest expense — (41 ) (8 ) (8 ) 27 (30 ) Interest income — 5 20 3 (27 ) 1 Dividend income - cost investments — — — 26 — 26 Other income (expense), net — — 1 1 — 2 Earnings (loss) from continuing operations before tax 206 208 246 114 (547 ) 227 Income tax (provision) benefit (1 ) (2 ) (29 ) 9 (1 ) (24 ) Earnings (loss) from continuing operations 205 206 217 123 (548 ) 203 Earnings (loss) from operation of discontinued operations — — (3 ) — — (3 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — (2 ) — — (2 ) Net earnings (loss) 205 206 215 123 (548 ) 201 Net (earnings) loss attributable to noncontrolling interests — — — 4 — 4 Net earnings (loss) attributable to Celanese Corporation 205 206 215 127 (548 ) 205 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Three Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 679 1,357 (267 ) 1,769 Cost of sales — — (501 ) (1,149 ) 289 (1,361 ) Gross profit — — 178 208 22 408 Selling, general and administrative expenses — — (18 ) (101 ) — (119 ) Amortization of intangible assets — — (2 ) (3 ) — (5 ) Research and development expenses — — (13 ) (11 ) — (24 ) Other (charges) gains, net — — — 2 — 2 Foreign exchange gain (loss), net — — — (1 ) — (1 ) Gain (loss) on disposition of businesses and assets, net — — (2 ) — — (2 ) Operating profit (loss) — — 143 94 22 259 Equity in net earnings (loss) of affiliates 259 282 48 89 (577 ) 101 Interest expense — (49 ) (6 ) (21 ) 36 (40 ) Interest income — 17 18 3 (36 ) 2 Dividend income - cost investments — — — 29 — 29 Other income (expense), net — — 1 — — 1 Earnings (loss) from continuing operations before tax 259 250 204 194 (555 ) 352 Income tax (provision) benefit — 9 (52 ) (46 ) (5 ) (94 ) Earnings (loss) from continuing operations 259 259 152 148 (560 ) 258 Earnings (loss) from operation of discontinued operations — — (1 ) — — (1 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — — — — — Net earnings (loss) 259 259 152 148 (560 ) 258 Net (earnings) loss attributable to noncontrolling interests — — — 1 — 1 Net earnings (loss) attributable to Celanese Corporation 259 259 152 149 (560 ) 259 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 1,332 2,307 (712 ) 2,927 Cost of sales — — (905 ) (1,995 ) 729 (2,171 ) Gross profit — — 427 312 17 756 Selling, general and administrative expenses — — (53 ) (151 ) — (204 ) Amortization of intangible assets — — (3 ) (3 ) — (6 ) Research and development expenses — — (59 ) (20 ) — (79 ) Other (charges) gains, net — — (3 ) (12 ) — (15 ) Foreign exchange gain (loss), net — — — — — — Gain (loss) on disposition of businesses and assets, net — — (3 ) (4 ) — (7 ) Operating profit (loss) — — 306 122 17 445 Equity in net earnings (loss) of affiliates 441 523 206 75 (1,157 ) 88 Interest expense — (84 ) (13 ) (20 ) 60 (57 ) Interest income — 13 39 9 (60 ) 1 Dividend income - cost investments — — — 54 — 54 Other income (expense), net — — 1 1 — 2 Earnings (loss) from continuing operations before tax 441 452 539 241 (1,140 ) 533 Income tax (provision) benefit — (11 ) (82 ) (1 ) (2 ) (96 ) Earnings (loss) from continuing operations 441 441 457 240 (1,142 ) 437 Earnings (loss) from operation of discontinued operations — — (3 ) — — (3 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — (2 ) — — (2 ) Net earnings (loss) 441 441 455 240 (1,142 ) 435 Net (earnings) loss attributable to noncontrolling interests — — — 6 — 6 Net earnings (loss) attributable to Celanese Corporation 441 441 455 246 (1,142 ) 441 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF OPERATIONS Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net sales — — 1,386 2,657 (569 ) 3,474 Cost of sales — — (962 ) (2,300 ) 574 (2,688 ) Gross profit — — 424 357 5 786 Selling, general and administrative expenses — — (27 ) (196 ) — (223 ) Amortization of intangible assets — — (4 ) (7 ) — (11 ) Research and development expenses — — (26 ) (20 ) — (46 ) Other (charges) gains, net — — — 1 — 1 Foreign exchange gain (loss), net — — — (2 ) — (2 ) Gain (loss) on disposition of businesses and assets, net — — (5 ) 2 — (3 ) Operating profit (loss) — — 362 135 5 502 Equity in net earnings (loss) of affiliates 454 510 78 125 (1,026 ) 141 Interest expense — (95 ) (12 ) (40 ) 68 (79 ) Interest income — 31 35 4 (68 ) 2 Dividend income - cost investments — — — 58 — 58 Other income (expense), net — — 4 (3 ) — 1 Earnings (loss) from continuing operations before tax 454 446 467 279 (1,021 ) 625 Income tax (provision) benefit 1 8 (122 ) (57 ) (2 ) (172 ) Earnings (loss) from continuing operations 455 454 345 222 (1,023 ) 453 Earnings (loss) from operation of discontinued operations — — (1 ) — — (1 ) Income tax (provision) benefit from discontinued operations — — 1 — — 1 Earnings (loss) from discontinued operations — — — — — — Net earnings (loss) 455 454 345 222 (1,023 ) 453 Net (earnings) loss attributable to noncontrolling interests — — — 2 — 2 Net earnings (loss) attributable to Celanese Corporation 455 454 345 224 (1,023 ) 455
Schedule of Consolidating Statements of Comprehensive Income (Loss)	CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 205 206 215 123 (548 ) 201 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities (1 ) (1 ) (1 ) (1 ) 3 (1 ) Foreign currency translation 37 37 56 74 (167 ) 37 Gain (loss) on cash flow hedges 1 1 1 1 (3 ) 1 Pension and postretirement benefits 4 4 3 4 (11 ) 4 Total other comprehensive income (loss), net of tax 41 41 59 78 (178 ) 41 Total comprehensive income (loss), net of tax 246 247 274 201 (726 ) 242 Comprehensive (income) loss attributable to noncontrolling interests — — — 4 — 4 Comprehensive income (loss) attributable to Celanese Corporation 246 247 274 205 (726 ) 246 Three Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 259 259 152 148 (560 ) 258 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities — — — — — — Foreign currency translation (22 ) (22 ) (9 ) 2 29 (22 ) Gain (loss) on cash flow hedges (3 ) (3 ) — (3 ) 6 (3 ) Pension and postretirement benefits (14 ) (14 ) (14 ) — 28 (14 ) Total other comprehensive income (loss), net of tax (39 ) (39 ) (23 ) (1 ) 63 (39 ) Total comprehensive income (loss), net of tax 220 220 129 147 (497 ) 219 Comprehensive (income) loss attributable to noncontrolling interests — — — 1 — 1 Comprehensive income (loss) attributable to Celanese Corporation 220 220 129 148 (497 ) 220 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 441 441 455 240 (1,142 ) 435 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities (1 ) (1 ) (1 ) (1 ) 3 (1 ) Foreign currency translation (119 ) (119 ) (114 ) (137 ) 370 (119 ) Gain (loss) on cash flow hedges 3 3 6 3 (12 ) 3 Pension and postretirement benefits 1 1 — 4 (5 ) 1 Total other comprehensive income (loss), net of tax (116 ) (116 ) (109 ) (131 ) 356 (116 ) Total comprehensive income (loss), net of tax 325 325 346 109 (786 ) 319 Comprehensive (income) loss attributable to noncontrolling interests — — — 6 — 6 Comprehensive income (loss) attributable to Celanese Corporation 325 325 346 115 (786 ) 325 Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net earnings (loss) 455 454 345 222 (1,023 ) 453 Other comprehensive income (loss), net of tax Unrealized gain (loss) on marketable securities — — — — — — Foreign currency translation (17 ) (17 ) 7 (14 ) 24 (17 ) Gain (loss) on cash flow hedges (6 ) (6 ) — (3 ) 9 (6 ) Pension and postretirement benefits (26 ) (26 ) (26 ) — 52 (26 ) Total other comprehensive income (loss), net of tax (49 ) (49 ) (19 ) (17 ) 85 (49 ) Total comprehensive income (loss), net of tax 406 405 326 205 (938 ) 404 Comprehensive (income) loss attributable to noncontrolling interests — — — 2 — 2 Comprehensive income (loss) attributable to Celanese Corporation 406 405 326 207 (938 ) 406
Schedule of Consolidating Balance Sheet	CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED CONSOLIDATING BALANCE SHEET As of June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) ASSETS Current Assets Cash and cash equivalents 1 — 115 872 — 988 Trade receivables - third party and affiliates — — 182 888 (197 ) 873 Non-trade receivables, net 36 974 2,270 382 (3,436 ) 226 Inventories, net — — 250 595 (83 ) 762 Deferred income taxes — — 26 11 (22 ) 15 Marketable securities, at fair value — — 29 — — 29 Other assets — — 17 23 (10 ) 30 Total current assets 37 974 2,889 2,771 (3,748 ) 2,923 Investments in affiliates 3,041 6,216 4,199 721 (13,356 ) 821 Property, plant and equipment, net — — 1,022 2,749 — 3,771 Deferred income taxes — 16 237 9 (2 ) 260 Other assets — 102 154 395 (279 ) 372 Goodwill — — 314 402 — 716 Intangible assets, net — — 74 51 — 125 Total assets 3,078 7,308 8,889 7,098 (17,385 ) 8,988 LIABILITIES AND EQUITY Current Liabilities Short-term borrowings and current installments of long-term debt - third party and affiliates — 1,972 700 249 (2,798 ) 123 Trade payables - third party and affiliates — — 354 579 (197 ) 736 Other liabilities 2 18 165 274 (161 ) 298 Deferred income taxes — 22 — 6 (22 ) 6 Income taxes payable — — 542 71 (508 ) 105 Total current liabilities 2 2,012 1,761 1,179 (3,686 ) 1,268 Noncurrent Liabilities Long-term debt — 2,234 373 204 (259 ) 2,552 Deferred income taxes — 14 — 115 (2 ) 127 Uncertain tax positions — 7 29 128 — 164 Benefit obligations — — 863 267 — 1,130 Other liabilities — — 119 170 (27 ) 262 Total noncurrent liabilities — 2,255 1,384 884 (288 ) 4,235 Total Celanese Corporation stockholders' equity 3,076 3,041 5,744 4,626 (13,411 ) 3,076 Noncontrolling interests — — — 409 — 409 Total equity 3,076 3,041 5,744 5,035 (13,411 ) 3,485 Total liabilities and equity 3,078 7,308 8,889 7,098 (17,385 ) 8,988 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED CONSOLIDATING BALANCE SHEET As of December 31, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) ASSETS Current Assets Cash and cash equivalents — — 110 670 — 780 Trade receivables - third party and affiliates — — 184 821 (204 ) 801 Non-trade receivables, net 35 477 2,265 407 (2,943 ) 241 Inventories, net — — 268 613 (99 ) 782 Deferred income taxes — — 39 12 (22 ) 29 Marketable securities, at fair value — — 32 — — 32 Other assets — 6 12 34 (19 ) 33 Total current assets 35 483 2,910 2,557 (3,287 ) 2,698 Investments in affiliates 2,784 5,889 4,349 613 (12,759 ) 876 Property, plant and equipment, net — — 1,029 2,704 — 3,733 Deferred income taxes — 16 211 26 — 253 Other assets — 674 146 400 (843 ) 377 Goodwill — — 314 435 — 749 Intangible assets, net — — 73 59 — 132 Total assets 2,819 7,062 9,032 6,794 (16,889 ) 8,818 LIABILITIES AND EQUITY Current Liabilities Short-term borrowings and current installments of long-term debt - third party and affiliates — 1,894 184 290 (2,231 ) 137 Trade payables - third party and affiliates — — 413 548 (204 ) 757 Other liabilities 1 34 225 402 (230 ) 432 Deferred income taxes — 22 — 7 (22 ) 7 Income taxes payable — — 484 45 (524 ) 5 Total current liabilities 1 1,950 1,306 1,292 (3,211 ) 1,338 Noncurrent Liabilities Long-term debt — 2,269 900 208 (769 ) 2,608 Deferred income taxes — — — 141 — 141 Uncertain tax positions — 6 16 137 — 159 Benefit obligations — — 923 288 — 1,211 Other liabilities — 53 121 192 (83 ) 283 Total noncurrent liabilities — 2,328 1,960 966 (852 ) 4,402 Total Celanese Corporation stockholders' equity 2,818 2,784 5,766 4,276 (12,826 ) 2,818 Noncontrolling interests — — — 260 — 260 Total equity 2,818 2,784 5,766 4,536 (12,826 ) 3,078 Total liabilities and equity 2,819 7,062 9,032 6,794 (16,889 ) 8,818
Schedule of Consolidating Statement of Cash Flows	CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF CASH FLOWS Six Months Ended June 30, 2015 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net cash provided by (used in) operating activities 83 45 285 306 (166 ) 553 Investing Activities Capital expenditures on property, plant and equipment — — (74 ) (43 ) — (117 ) Acquisitions, net of cash acquired — — (3 ) — — (3 ) Proceeds from sale of businesses and assets, net — — — — — — Capital expenditures related to Fairway Methanol LLC — — (9 ) (201 ) — (210 ) Return of capital from subsidiary — — — — — — Contributions to subsidiary — — (60 ) — 60 — Intercompany loan receipts (disbursements) — 3 (25 ) (15 ) 37 — Other, net — — (12 ) (12 ) — (24 ) Net cash provided by (used in) investing activities — 3 (183 ) (271 ) 97 (354 ) Financing Activities Net change in short-term borrowings with maturities of 3 months or less — 25 (1 ) (1 ) (25 ) (2 ) Proceeds from short-term borrowings — — — 26 — 26 Repayments of short-term borrowings — — — (39 ) — (39 ) Proceeds from long-term debt — 15 — — (15 ) — Repayments of long-term debt — (5 ) (3 ) (7 ) 3 (12 ) Purchases of treasury stock, including related fees — — — — — — Dividends to parent — (83 ) (83 ) — 166 — Contributions from parent — — — 60 (60 ) — Stock option exercises 2 — — — — 2 Series A common stock dividends (84 ) — — — — (84 ) Return of capital to parent — — — — — — Contributions from noncontrolling interests — — — 155 — 155 Other, net — — (10 ) (1 ) — (11 ) Net cash provided by (used in) financing activities (82 ) (48 ) (97 ) 193 69 35 Exchange rate effects on cash and cash equivalents — — — (26 ) — (26 ) Net increase (decrease) in cash and cash equivalents 1 — 5 202 — 208 Cash and cash equivalents as of beginning of period — — 110 670 — 780 Cash and cash equivalents as of end of period 1 — 115 872 — 988 CELANESE CORPORATION AND SUBSIDIARIES UNAUDITED INTERIM CONSOLIDATING STATEMENT OF CASH FLOWS Six Months Ended June 30, 2014 Parent Guarantor Issuer Subsidiary Guarantors Non- Guarantors Eliminations Consolidated (In $ millions) Net cash provided by (used in) operating activities 169 109 333 142 (336 ) 417 Investing Activities Capital expenditures on property, plant and equipment — — (100 ) (30 ) — (130 ) Acquisitions, net of cash acquired — — — — — — Proceeds from sale of businesses and assets, net — — — — — — Capital expenditures related to Fairway Methanol LLC — — (34 ) (109 ) — (143 ) Return of capital from subsidiary — — 51 — (51 ) — Contributions to subsidiary — — (97 ) — 97 — Intercompany loan receipts (disbursements) — 3 (61 ) — 58 — Other, net — — (6 ) (4 ) — (10 ) Net cash provided by (used in) investing activities — 3 (247 ) (143 ) 104 (283 ) Financing Activities Net change in short-term borrowings with maturities of 3 months or less — 61 10 (9 ) (61 ) 1 Proceeds from short-term borrowings — — — 25 — 25 Repayments of short-term borrowings — — — (43 ) — (43 ) Proceeds from long-term debt — — — — — — Repayments of long-term debt — (5 ) (3 ) (8 ) 3 (13 ) Purchases of treasury stock, including related fees (103 ) — — — — (103 ) Dividends to parent — (168 ) (168 ) — 336 — Contributions from parent — — — 97 (97 ) — Stock option exercises 3 — — — — 3 Series A common stock dividends (67 ) — — — — (67 ) Return of capital to parent — — — (51 ) 51 — Contributions from noncontrolling interests — — — 148 — 148 Other, net — — (1 ) — — (1 ) Net cash provided by (used in) financing activities (167 ) (112 ) (162 ) 159 232 (50 ) Exchange rate effects on cash and cash equivalents — — — (4 ) — (4 ) Net increase (decrease) in cash and cash equivalents 2 — (76 ) 154 — 80 Cash and cash equivalents as of beginning of period — — 284 700 — 984 Cash and cash equivalents as of end of period 2 — 208 854 — 1,064

Description of the Company an44

Description of the Company and Basis of Presentation (Narrative) (Details)	Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidated subsidiaries ownership percentage	100.00%

Ventures and Variable Interes45

Ventures and Variable Interest Entities (Schedule of Variable Interest Entities) (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Variable Interest Entity [Line Items]
Cash and cash equivalents		$ 988	$ 780	$ 1,064	$ 984
Property, plant and equipment		3,771	3,733
Other assets		372	377
Total assets		8,988	8,818
Trade payables		736	757
Current liabilities		1,268	1,338
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents		1	1
Property, plant and equipment		716	535
Other assets		38	24
Total assets	[1]	755	560
Trade payables		2	0
Current liabilities	[2]	24	40
Long-term debt		6	0
Total liabilities		32	40
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Property, plant and equipment		90	96
Trade payables		49	43
Current installments of long-term debt		9	9
Long-term debt		120	125
Total liabilities		178	177
Maximum exposure to loss		$ 315	$ 291
[1]	Assets can only be used to settle the obligations of Fairway.
[2]	Amounts owed by Fairway to the Company for reimbursement of expenditures.

Ventures and Variable Interes46

Ventures and Variable Interest Entities (Narrative) (Details) - 3 months ended Jun. 30, 2015 - Variable Interest Entity, Primary Beneficiary [Member] - T T in Millions	Total
Variable Interest Entity [Line Items]
Ownership percentage	50.00%
Expected production capacity per year	1.3

Marketable Securities, at Fai47

Marketable Securities, at Fair Value (Schedule of Available-for-sale Securities) (Details) - Investments [Member] - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 29	$ 32
Gross unrealized gain	0	0
Gross unrealized loss	0	0
Fair value	$ 29	$ 32

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Finished goods	$ 559	$ 579
Work-in-process	51	53
Raw materials and supplies	152	150
Total	$ 762	$ 782

Current Other Liabilities (Deta

Current Other Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Other Liabilities, Current [Abstract]
Asset retirement obligations	$ 7	$ 9
Benefit obligations (Note 9)	33	28
Customer rebates	33	53
Derivatives (Note 14)	5	13
Environmental (Note 10)	18	21
Insurance	9	9
Interest	15	19
Restructuring (Note 12)	15	21
Salaries and benefits	79	129
Sales and use tax/foreign withholding tax payable	16	13
Uncertain tax positions (Note 13)	0	59
Other	68	58
Total	$ 298	$ 432

Noncurrent Other Liabilities (D

Noncurrent Other Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Other Liabilities, Noncurrent [Abstract]
Asset retirement obligations	$ 29	$ 28
Deferred proceeds	43	47
Deferred revenue	18	21
Derivatives (Note 14)	0	10
Environmental (Note 10)	61	63
Income taxes payable	12	13
Insurance	52	51
Other	47	50
Total	$ 262	$ 283

Debt (Schedule of Short-term De

Debt (Schedule of Short-term Debt) (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Current installments of long-term debt		$ 26	$ 25
Short-term borrowings, including amounts due to affiliates	[1]	67	77
Accounts receivable securitization facility	[2]	30	35
Total		$ 123	$ 137
Weighted average interest rate, short-term borrowings		4.50%	4.70%
Weighted average interest rate, credit facility		0.70%	0.70%
Accounts Receivable Securitization Facility [Member]
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Accounts receivable securitization facility	[3]	$ 30
[1]	The weighted average interest rate was 4.5% and 4.7% as of June 30, 2015 and December 31, 2014, respectively.
[2]	The weighted average interest rate was 0.7% as of June 30, 2015 and December 31, 2014.
[3]	The Company repaid $15 million of borrowings outstanding during the six months ended June 30, 2015.

Debt (Schedule of Long-term Deb

Debt (Schedule of Long-term Debt) (Details) € in Millions, $ in Millions	1 Months Ended	6 Months Ended
	Sep. 30, 2014EUR (€)	Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Long-Term Debt
Subtotal		$ 2,578	$ 2,633
Current installments of long-term debt		(26)	(25)
Total		2,552	2,608
Term C-2 Loan Facility [Member]
Long-Term Debt
Senior credit facilities - Term loans	€ 28	$ 31	34
Credit facility, expiration date	Oct. 15, 2016	Oct. 15, 2016
Term C-3 Loan Facility [Member]
Long-Term Debt
Senior credit facilities - Term loans		$ 886	906
Credit facility, expiration date		Oct. 15, 2018
Senior Unsecured Notes Due 2019 [Member]
Long-Term Debt
Senior unsecured notes		$ 336	364
Date of maturity		Oct. 15, 2019
Interest rate		3.25%
Senior Unsecured Notes Due 2021 [Member]
Long-Term Debt
Senior unsecured notes		$ 400	400
Date of maturity		Jun. 15, 2021
Interest rate		5.875%
Senior Unsecured Notes Due 2022 [Member]
Long-Term Debt
Senior unsecured notes		$ 500	500
Date of maturity		Nov. 15, 2022
Interest rate		4.625%
Pollution Control and Industrial Revenue Bonds [Member]
Long-Term Debt
Other long-term debt		$ 169	169
Interest rate, stated percentage range, minimum		5.70%
Interest rate, stated percentage range, maximum		6.70%
Year of maturity, range end		Nov. 1, 2030
Obligations Under Capital Leases [Member]
Long-Term Debt
Year of maturity, range end		Mar. 31, 2054
Capital lease obligations		$ 256	$ 260

Debt Debt (Schedule of Senior N

Debt Debt (Schedule of Senior Notes) (Details) - Jun. 30, 2015 € in Millions, $ in Millions	EUR (€)	USD ($)
Senior Unsecured Notes Due 2019 [Member]
Debt Instrument [Line Items]
Senior notes | €	€ 300
Interest rate	3.25%	3.25%
Date of maturity	Oct. 15, 2019
Senior Unsecured Notes Due 2022 [Member]
Debt Instrument [Line Items]
Senior notes		$ 500
Interest rate	4.625%	4.625%
Date of maturity	Nov. 15, 2022
Senior Unsecured Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior notes		$ 400
Interest rate	5.875%	5.875%
Date of maturity	Jun. 15, 2021

Debt (Senior Notes and Senior C

Debt (Senior Notes and Senior Credit Facilities Narrative) (Details) € in Millions, $ in Millions	Jun. 30, 2015USD ($)	Sep. 30, 2014EUR (€)	Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2014USD ($)
Term C-3 Loan Facility [Member]
Debt Instrument [Line Items]
Secured Debt	$ 886		$ 886	$ 906
Credit facility, expiration date			Oct. 15, 2018
Term C-3 Loan Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Estimated margin	2.25%
Term C-3 Loan Facility [Member] | European Interbank Offered Rate (EURIBOR) [Member]
Debt Instrument [Line Items]
Estimated margin	2.25%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing base	$ 900		$ 900		$ 900
Credit facility, expiration date		Oct. 15, 2018
Amortization rate of initial principal amount per annum payable quarterly			1.00%
Line of credit facility, unused capacity, commitment fee percentage			0.25%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Estimated margin	1.50%
Term C-2 Loan Facility [Member]
Debt Instrument [Line Items]
Secured Debt	$ 31	€ 28	$ 31	$ 34
Credit facility, expiration date		Oct. 15, 2016	Oct. 15, 2016
Term C-2 Loan Facility [Member] | European Interbank Offered Rate (EURIBOR) [Member]
Debt Instrument [Line Items]
Estimated margin	2.00%
Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Cross default covenant to other debt	$ 50		$ 50

Debt (Schedule of First Lien Se

Debt (Schedule of First Lien Senior Secured Leverage Ratios) (Details) - Revolving Credit Facility [Member]	Jun. 30, 2015
Ratio Estimate If Fully Drawn [Member]
Debt Instrument [Line Items]
First lien secured leverage ratio	1.18
Ratio Estimate [Member]
Debt Instrument [Line Items]
First lien secured leverage ratio	0.61
Ratio Maximum [Member]
Debt Instrument [Line Items]
First lien secured leverage ratio	3.90

Debt (Accounts Receivable Secur

Debt (Accounts Receivable Securitization Facility Narrative) (Details)	1 Months Ended
	Aug. 31, 2013
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Credit facility, expiration date	Aug. 28, 2016

Debt (Schedule of Balances Avai

Debt (Schedule of Balances Available for Borrowings)(Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2015	Sep. 30, 2014
Debt Instrument [Line Items]
Borrowings outstanding	[1]	$ 30
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings outstanding		0
Letters of credit issued		0
Available for borrowing		900
Maximum borrowing base		900	$ 900
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Repayments of Lines of Credit		15
Borrowings outstanding	[2]	30
Letters of credit issued		74
Available for borrowing		16
Total borrowing base		120
Maximum borrowing base	[3]	135
Cash Flows Between Transferor and Transferee, Proceeds from New Transfers		$ 173
[1]	The weighted average interest rate was 0.7% as of June 30, 2015 and December 31, 2014.
[2]	The Company repaid $15 million of borrowings outstanding during the six months ended June 30, 2015.
[3]	Outstanding accounts receivable transferred by the Originators to the Transferor was $173 million.

Benefit Obligations (Schedule o

Benefit Obligations (Schedule of Net Periodic Benefit Costs Recognized) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014		Jun. 30, 2015	Jun. 30, 2014
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3	$ 3		$ 6	$ 6
Interest cost	36	43		71	85
Expected return on plan assets	(53)	(54)		(105)	(108)
Recognized actuarial (gain) loss	0	0		0	0
Amortization of prior service cost (credit), net	0	0		0	0
Special termination benefit	0	0		1	0
Total	(14)	(8)		(27)	(17)
Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1		1	1
Interest cost	0	0		1	2
Expected return on plan assets	0	0		0	0
Recognized actuarial (gain) loss	1	0		1	0
Amortization of prior service cost (credit), net	0	(22)	[1]	0	(41)	[1]
Special termination benefit	0	0		0	0
Total	$ 2	$ (21)		$ 3	$ (38)
[1]	Primarily related to the elimination of eligibility for all current and future US employees to participate in the Company's US postretirement health care plan.

Benefit Obligations (Schedule59

Benefit Obligations (Schedule of Company Commitments to Fund Benefit Obligations) (Details) $ in Millions		6 Months Ended
		Jun. 30, 2015USD ($)
Multiemployer Plans, Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Total contributions year-to-date	[1]	$ 3
Total expected contributions in current fiscal year	[1]	6
Cash Contributions to Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Total contributions year-to-date		27
Total expected contributions in current fiscal year		28
Other Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Total contributions year-to-date		11
Total expected contributions in current fiscal year		22
Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Total contributions year-to-date		3
Total expected contributions in current fiscal year		$ 17
[1]	The Company makes contributions based on specified percentages of employee contributions.

Environmental (Schedule of Envi

Environmental (Schedule of Environmental Remediation Reserves) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Environmental Remediation Obligations [Abstract]
Demerger obligations (Note 16)	$ 24	$ 25
Divestiture obligations (Note 16)	19	21
Active sites	20	23
US Superfund sites	14	12
Other environmental remediation reserves	2	3
Total	$ 79	$ 84

Environmental (US Superfund Sit

Environmental (US Superfund Sites Narrative) (Details) - Passaic River, New Jersey [Member] $ in Millions	Apr. 11, 2014USD ($)	Jun. 30, 2015
Site Contingency [Line Items]
Number of parties included in USEPA order		70
EPA proposed remedial alternative, low estimate	$ 365
EPA proposed remedial alternative, high estimate	3,200
EPA preferred remedial alternative	$ 1,700
Environmental Liability Percentage		1.00%

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule of Dividend Increases) (Details) - $ / shares	1 Months Ended
	Apr. 30, 2015	Apr. 30, 2014
Schedule of Dividend Increases [Line Items]
Common stock, dividends, rate increase, percent	20.00%	39.00%
Quarterly [Member]
Schedule of Dividend Increases [Line Items]
Common stock, dividends, per share, declared	$ 0.30	$ 0.25
Annual [Member]
Schedule of Dividend Increases [Line Items]
Common stock, dividends, per share, declared	$ 1.2	$ 1

Stockholders' Equity (Schedul63

Stockholders' Equity (Schedule of Treasury Stock) (Details) - USD ($) $ / shares in Units, $ in Millions		6 Months Ended			89 Months Ended
		Jun. 30, 2015		Jun. 30, 2014	Jun. 30, 2015
Class of Stock [Line Items]
Shares repurchased		0	[1]	1,870,297	20,667,195	[2]
Average purchase price per share		$ 0		$ 55.13	$ 44.27
Cash paid for repurchased shares (in millions)		$ 0		$ 103	$ 915
Aggregate Board of Directors repurchase authorizations (in millions)	[3]	$ 0		$ 172	$ 1,366
Restricted Stock [Member]
Class of Stock [Line Items]
Shares withheld, tax withholding		9,264			21,108
[1]	Excludes 9,264 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares.
[2]	Excludes 21,108 shares withheld from an executive officer to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock awards are considered outstanding at the time of issuance. Accordingly, the shares withheld are treated as treasury shares.
[3]	These authorizations give management discretion in determining the timing and conditions under which shares may be repurchased. This repurchase program began in February 2008 and does not have an expiration date.

Stockholders' Equity (Schedul64

Stockholders' Equity (Schedule of Components of Other Comprehensive Income (Loss), Net) (Details) - Equity Component [Domain] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), net [Line Items]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	$ 0	$ 0	$ 0	$ 0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	(1)	0	(1)	0
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax	33	(12)	(117)	(15)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	4	(10)	(2)	(2)
Foreign currency translation	37	(22)	(119)	(17)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	1	(3)	4	(3)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	0	0	(1)	(3)
Gain (loss) on cash flow hedges	1	(3)	3	(6)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	0	(22)	0	(41)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	4	8	1	15
Pension and postretirement benefits	4	(14)	1	(26)
Other Comprehensive Income (Loss), before Tax	34	(37)	(113)	(59)
Income tax (provision) benefit	7	(2)	(3)	10
Total	$ 41	$ (39)	$ (116)	$ (49)

Stockholders' Equity (Schedul65

Stockholders' Equity (Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss), net [Line Items]
As of December 31, 2014			$ (165)
Other comprehensive income (loss) before reclassifications			(118)
Amounts reclassified from accumulated other comprehensive income (loss)			5
Income tax (provision) benefit	$ 7	$ (2)	(3)	$ 10
As of June 30, 2015	(281)		(281)
Unrealized Gain (Loss) on Marketable Securities [Member]
Accumulated Other Comprehensive Income (Loss), net [Line Items]
As of December 31, 2014			1
Other comprehensive income (loss) before reclassifications			0
Amounts reclassified from accumulated other comprehensive income (loss)			0
Income tax (provision) benefit			(1)
As of June 30, 2015	0		0
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss), net [Line Items]
As of December 31, 2014			(151)
Other comprehensive income (loss) before reclassifications			(117)
Amounts reclassified from accumulated other comprehensive income (loss)			0
Income tax (provision) benefit			(2)
As of June 30, 2015	(270)		(270)
Gain (Loss) from Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss), net [Line Items]
As of December 31, 2014			(4)
Other comprehensive income (loss) before reclassifications			(1)
Amounts reclassified from accumulated other comprehensive income (loss)			5
Income tax (provision) benefit			(1)
As of June 30, 2015	(1)		(1)
Pension and Postretirement Benefits [Member]
Accumulated Other Comprehensive Income (Loss), net [Line Items]
As of December 31, 2014			(11)
Other comprehensive income (loss) before reclassifications			0
Amounts reclassified from accumulated other comprehensive income (loss)			0
Income tax (provision) benefit			1
As of June 30, 2015	$ (10)		$ (10)

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details)	Jun. 30, 2015$ / shares
Class of Stock [Line Items]
Common stock, par value	$ 0.0001

Other (Charges) Gains, Net (Sch

Other (Charges) Gains, Net (Schedule of Other (Charges) Gains, Net) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring and Related Activities [Abstract]
Employee termination benefits	$ (10)	$ (1)	$ (14)	$ (3)
Plant/office closures	0	0	0	1
Commercial disputes	0	0	(1)	0
Other	0	3	0	3
Total	$ (10)	$ 2	$ (15)	$ 1

Other (Charges) Gains, Net (S68

Other (Charges) Gains, Net (Schedule of Restructuring Reserves) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	$ 15
Total	15
Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	14
Additions	14
Cash payments	(6)
Other changes	(6)
Exchange rate changes	(2)
As of June 30, 2015	14
Total	14
Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	1
Total	7
Advanced Engineered Materials [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	3
Total	3
Advanced Engineered Materials [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	4
Additions	4
Cash payments	(1)
Other changes	(3)
Exchange rate changes	(1)
As of June 30, 2015	3
Total	4
Advanced Engineered Materials [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Consumer Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	1
Total	1
Consumer Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	1
Cash payments	(1)
Other changes	0
Exchange rate changes	0
As of June 30, 2015	1
Total	1
Consumer Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Industrial Specialties [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	2
Total	2
Industrial Specialties [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	1
Additions	2
Cash payments	(1)
Other changes	0
Exchange rate changes	0
As of June 30, 2015	2
Total	1
Industrial Specialties [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	0
Acetyl Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	3
Total	3
Acetyl Intermediates [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	5
Additions	1
Cash payments	(3)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	2
Total	5
Acetyl Intermediates [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	7
Additions	0
Cash payments	(5)
Other changes	0
Exchange rate changes	(1)
As of June 30, 2015	1
Total	7
Other [Member]
Restructuring Cost and Reserve [Line Items]
As of June 30, 2015	6
Total	6
Other [Member] | Employee Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	3
Additions	6
Cash payments	0
Other changes	(3)
Exchange rate changes	0
As of June 30, 2015	6
Total	3
Other [Member] | Plant/Office Closures [Member]
Restructuring Cost and Reserve [Line Items]
As of December 31, 2014	0
Additions	0
Cash payments	0
Other changes	0
Exchange rate changes	0
As of June 30, 2015	0
Total	$ 0

Other (Charges) Gains, Net (Nar

Other (Charges) Gains, Net (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other (Charges) Gains, Net [Line Items]
Employee termination benefits	$ (10)	$ (1)	$ (14)	$ (3)
Other	$ 0	3	$ 0	3
Advanced Engineered Materials [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits				(1)
Roussillon, France and Tarragona, Spain [Member] | Acetyl Intermediates [Member]
Other (Charges) Gains, Net [Line Items]
Employee termination benefits				$ (2)
Other		$ 3

Other (Charges) Gains, Net Othe

Other (Charges) Gains, Net Other (Charges) Gains, Net (Narrative 2) (Details) $ in Millions	3 Months Ended
	Jun. 30, 2015USD ($)
Research and Development Expense [Member] | Acetyl Intermediates [Member]
Schedule of Accelerated Depreciation [Line Items]
Accelerated Depreciation	$ 39

Income Taxes (Schedule of Effec

Income Taxes (Schedule of Effective Tax Rate) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Effective income tax rate	11.00%	27.00%	18.00%	28.00%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015USD ($)
Income Tax Disclosure [Abstract]
Tax Adjustments, Settlements, and Unusual Provisions	$ (30)
Uncertain Tax Liability, Period (Increase) Decrease	73
Uncertain Tax Liability, Decrease Resulting from Foreign Currency Translation	14
Uncertain Tax Liability, Decrease Resulting from Settlements with Taxing Authorities	$ 59

Derivative Financial Instrume73

Derivative Financial Instruments (Schedule of Interest Rate Swap Derivatives) (Details) - Interest Rate Swap [Member] - Swap Derivative 1 Point 02 Percent Maturing January 2, 2016 [Member] - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Effective Date	Jan. 2, 2014	Jan. 2, 2014
Expiration Date	Jan. 2, 2016	Jan. 2, 2016
Fixed Rate	0.94%	1.02%
Notional Value	$ 500	$ 500

Derivative Financial Instrume74

Derivative Financial Instruments (Schedule of Notional Amounts of Foreign Currency Derivatives) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Foreign Exchange Contract [Member]
Derivative [Line Items]
Notional Value	$ 609	$ 1,336

Derivative Financial Instrume75

Derivative Financial Instruments (Schedule of Changes in Fair Value of Derivatives) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015		Jun. 30, 2014
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ 0	$ (5)	$ 0		$ (5)
Gain (Loss) Recognized in Earnings (Loss)	0	1	46		1
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	0	0	0		0
Gain (Loss) Recognized in Earnings (Loss)	(1)	(3)	(69)		(5)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	0	(1)	0		(1)
Gain (Loss) Recognized in Earnings (Loss)	0	(2)	0		(2)
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	0	0	0		0
Gain (Loss) Recognized in Earnings (Loss)	(1)	0	(1)		0
Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	0	(4)	0		(4)
Gain (Loss) Recognized in Earnings (Loss)	0	3	46		3
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	0	0	0		0
Gain (Loss) Recognized in Earnings (Loss)	0	(3)	(68)		(5)
Net Investment Hedging [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	(21)	0	28		0
Gain (Loss) Recognized in Earnings (Loss)	$ 0	0	$ 0		0
Senior Unsecured Notes Due 2019 [Member]
Derivative [Line Items]
Interest rate	3.25%		3.25%
Senior Unsecured Notes Due 2019 [Member] | Net Investment Hedging [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	$ (13)	0	$ 28		0
Gain (Loss) Recognized in Earnings (Loss)	0	0	0		0
Term C-2 and C-3 Loan Facilities [Member] | Net Investment Hedging [Member]
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Loss)	(8)	0	0	[1]	0	[1]
Gain (Loss) Recognized in Earnings (Loss)	$ 0	$ 0	$ 0	[1]	$ 0	[1]
[1]	During the three months ended March 31, 2015, the Company designated the Euro-based principal amount of its Term C-2 loan and its Term C-3 loan as a net investment hedge of its investment in a wholly-owned international subsidiary whose functional currency is the Euro to mitigate the volatility caused by the changes in foreign currency exchange rates of the Euro with respect to the US dollar.

Derivative Financial Instrume76

Derivative Financial Instruments (Schedule of Offsetting Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivative Assets [Abstract]
Gross amount recognized	$ 3	$ 55
Gross amount offset in the consolidated balance sheets	0	0
Net amount presented in the consolidated balance sheets	3	55
Gross amount not offset in the consolidated balance sheets	1	4
Net amount	$ 2	$ 51

Derivative Financial Instrume77

Derivative Financial Instruments (Schedule of Offsetting Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivative Liabilities [Abstract]
Gross amount recognized	$ 5	$ 23
Gross amount offset in the consolidated balance sheets	0	0
Net amount presented in the consolidated balance sheets	5	23
Gross amount not offset in the consolidated balance sheets	1	4
Net amount	$ 4	$ 19

Derivative Financial Instrume78

Derivative Financial Instruments (Narrative) (Details) - Mar. 31, 2015 € in Millions, $ in Millions	USD ($)	EUR (€)	USD ($)
Derivative [Line Items]
Derivative, Cash Received on Hedge	$ 88
Gain (Loss) on Derivative Instruments, Net, Pretax	$ 1
Swap Derivative Maturing September 11, 2020 [Member]
Derivative [Line Items]
Notional Value			$ 250
Expiration Date	Sep. 11, 2020
Swap Derivative Maturing September 11, 2020 [Member]
Derivative [Line Items]
Notional Value | €		€ 193
Swap Derivative Maturing April 17, 2019 [Member]
Derivative [Line Items]
Notional Value			$ 225
Expiration Date	Apr. 17, 2019
Swap Derivative Maturing April 17, 2019 [Member]
Derivative [Line Items]
Notional Value | €		€ 162

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		$ 32	$ 87
Total liabilities		(5)	(23)
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		29	32
Total liabilities		0	0
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		3	55
Total liabilities		(5)	(23)
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps		(2)
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps		0
Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swaps		(2)
Marketable securities, at fair value [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds		29	32
Marketable securities, at fair value [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds		29	32
Marketable securities, at fair value [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds		0	0
Noncurrent Other assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			43
Noncurrent Other assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			0
Noncurrent Other assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			43
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			9
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			0
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			9
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		3	3
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		0	0
Current Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		3	3
Noncurrent Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			(10)
Noncurrent Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			0
Noncurrent Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			(10)
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			(2)
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			0
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cross-currency swaps			(2)
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		(3)	(7)
Interest rate swaps			(4)
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		0	0
Interest rate swaps			0
Current Other liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Not Designated as Hedging Instrument [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency forwards and swaps		$ (3)	(7)
Interest rate swaps			(4)
Senior Unsecured Notes Due 2019 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate		3.25%
Senior Unsecured Notes Due 2019 [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	$ 0	0
Senior Unsecured Notes Due 2019 [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	0	0
Senior Unsecured Notes Due 2019 [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	0	$ 0
Term C-2 and C-3 Loan Facilities [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	0
Term C-2 and C-3 Loan Facilities [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	0
Term C-2 and C-3 Loan Facilities [Member] | Net Investment Hedging [Member] | Long-term Debt [Member] | Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Investment Hedge	[1]	$ 0
[1]	Included in the unaudited consolidated balance sheets at carrying amount.

Fair Value Measurements (Sche80

Fair Value Measurements (Schedule of Carrying Values and Fair Values of Financial Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost investments, carrying amount	$ 147	$ 145
Cost investments, fair value	0	0
Insurance contracts in nonqualified trusts, carrying amount	52	56
Insurance contracts in nonqualified trusts, fair value	52	56
Long-term debt, including current installments of long-term debt, carrying amount	2,578	2,633
Long-term debt, including current installments of long-term debt, fair value	2,620	2,658
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost investments, fair value	0	0
Insurance contracts in nonqualified trusts, fair value	52	56
Long-term debt, including current installments of long-term debt, fair value	2,364	2,398
Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost investments, fair value	0	0
Insurance contracts in nonqualified trusts, fair value	0	0
Long-term debt, including current installments of long-term debt, fair value	$ 256	$ 260

Commitments and Contingencies (

Commitments and Contingencies (Guarantees - Demerger and Divesture Obligations Narrative) (Details) - Jun. 30, 2015 € in Millions, $ in Millions	EUR (€)	USD ($)	USD ($)
Indemnification Agreements Hoechst [Member]
Loss Contingencies [Line Items]
Number of divestiture agreements	19		19
Indemnification floor amount | €	€ 250
Indemnification ceiling amount | €	€ 750
Indemnification percentage exceeding ceiling amount	33.33%		33.33%
Loss contingency accrual, carrying value, payments		$ 69
Indemnification percentage, other	33.33%		33.33%
Divestiture Agreements [Member]
Loss Contingencies [Line Items]
Term of divestiture obligations	2,037
Guarantor obligations, maximum exposure			$ 209

Commitments and Contingencies C

Commitments and Contingencies Commitments and Contingencies (Purchase Obligations Narrative) (Details) - Jun. 30, 2015 - USD ($) $ in Billions	Total
Commitments and Contingencies Disclosure [Abstract]
Unrecorded unconditional purchase obligations	$ 2.9
Term of unrecorded unconditional purchase obligations	2,036

Segment Information (Schedule o

Segment Information (Schedule of Business Segments) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014		Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 1,477		$ 1,769		$ 2,927		$ 3,474
Other (charges) gains, net	(10)		2		(15)		1
Operating profit (loss)	188		259		445		502
Equity in net earnings (loss) of affiliates	40		101		88		141
Depreciation and amortization	105		72		172		147
Capital expenditures	153	[1]	131	[1]	299	[2]	249	[2]
Goodwill and intangible assets, net	841				841				$ 881
Total assets	8,988				8,988				8,818
Increase (decrease) in accrued capital expenditures	(12)		6		(28)		(24)
Operating Segments [Member] | Advanced Engineered Materials [Member]
Segment Reporting Information [Line Items]
Net sales	346		389		689		762
Other (charges) gains, net	(3)		(1)		(4)		(1)
Operating profit (loss)	67		56		126		113
Equity in net earnings (loss) of affiliates	31		45		74		78
Depreciation and amortization	24		27		49		53
Capital expenditures	16		11		33		20
Goodwill and intangible assets, net	344				344				358
Total assets	2,443				2,443				2,484
Operating Segments [Member] | Consumer Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	249	[3]	289	[3]	476		591
Other (charges) gains, net	(1)		0		(1)		0
Operating profit (loss)	77		80		139		179
Equity in net earnings (loss) of affiliates	1		7		1		8
Depreciation and amortization	12		10		23		21
Capital expenditures	11		22		37		50
Goodwill and intangible assets, net	253				253				261
Total assets	1,485				1,485				1,491
Operating Segments [Member] | Industrial Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	287		333		569		645
Other (charges) gains, net	(1)		0		(2)		0
Operating profit (loss)	28		24		57		44
Equity in net earnings (loss) of affiliates	0		0		0		0
Depreciation and amortization	9		12		19		26
Capital expenditures	13		6		19		10
Goodwill and intangible assets, net	51				51				54
Total assets	832				832				823
Operating Segments [Member] | Acetyl Intermediates [Member]
Segment Reporting Information [Line Items]
Net sales	707	[3]	901	[3]	1,420	[4]	1,742	[4]
Other (charges) gains, net	(1)		2		(2)		2
Operating profit (loss)	54		142		185		239
Equity in net earnings (loss) of affiliates	1		14		2		15
Depreciation and amortization	57	[5]	19		76	[6]	40
Capital expenditures	112		90		208		166
Goodwill and intangible assets, net	193				193				208
Total assets	2,594				2,594				2,495
Corporate, Non-Segment [Member] | Other Activities [Member]
Segment Reporting Information [Line Items]
Net sales	0		0		0		0
Other (charges) gains, net	(4)		1		(6)		0
Operating profit (loss)	(38)		(43)		(62)		(73)
Equity in net earnings (loss) of affiliates	7		35		11		40
Depreciation and amortization	3		4		5		7
Capital expenditures	1		2		2		3
Goodwill and intangible assets, net	0				0				0
Total assets	1,634				1,634				1,525
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(112)		(143)		(227)		(266)
Other (charges) gains, net	0		0		0		0
Operating profit (loss)	0		0		0		0
Equity in net earnings (loss) of affiliates	0		0		0		0
Depreciation and amortization	0		0		0		0
Capital expenditures	0		0		0		0
Goodwill and intangible assets, net	0				0				0
Total assets	0				0				$ 0
Eliminations [Member] | Acetyl Intermediates [Member]
Segment Reporting Information [Line Items]
Net sales	$ 112		$ 143		$ 227		$ 266
[1]	Includes a decrease in accrued capital expenditures of $12 million and an increase of $6 million for the three months ended June 30, 2015 and 2014, respectively.
[2]	Includes a decrease in accrued capital expenditures of $28 million and $24 million for the six months ended June 30, 2015 and 2014, respectively.
[3]	Net sales for Acetyl Intermediates includes intersegment sales of $112 million and $143 million for the three months ended June 30, 2015 and 2014, respectively.
[4]	Net sales for Acetyl Intermediates includes intersegment sales of $227 million and $266 million for the six months ended June 30, 2015 and 2014, respectively.
[5]	See Note 12 - Other (Charges) Gains, Net for further information.
[6]	See Note 12 - Other (Charges) Gains, Net for further information.

Earnings (Loss) Per Share (Sche

Earnings (Loss) Per Share (Schedule of Earnings (Loss) Per Share) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Amounts attributable to Celanese Corporation
Earnings (loss) from continuing operations	$ 207	$ 259	$ 443	$ 455
Earnings (loss) from discontinued operations	(2)	0	(2)	0
Net earnings (loss)	$ 205	$ 259	$ 441	$ 455
Weighted average shares - basic	153,480,175	155,751,779	153,349,071	156,124,714
Incremental shares attributable to equity awards	510,758	302,453	596,395	299,951
Weighted average shares - diluted	153,990,933	156,054,232	153,945,466	156,424,665

EarningsPer Share Earnings (Los

EarningsPer Share Earnings (Loss) Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	644	0

Consolidating Guarantor Finan86

Consolidating Guarantor Financial Information (Schedule of Consolidating Statement of Operations) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 1,477	$ 1,769	$ 2,927	$ 3,474
Cost of Goods and Services Sold	(1,102)	(1,361)	(2,171)	(2,688)
Gross Profit	375	408	756	786
Selling, General and Administrative Expense	(106)	(119)	(204)	(223)
Amortization of Intangible Assets	(3)	(5)	(6)	(11)
Research and Development Expense	(59)	(24)	(79)	(46)
Other (Charges) Gains, Net	(10)	2	(15)	1
Foreign exchange gain (loss), net	(3)	(1)	0	(2)
Gain (loss) on disposition of businesses and assets, net	(6)	(2)	(7)	(3)
Operating Income (Loss)	188	259	445	502
Equity in net earnings (loss) of affiliates	40	101	88	141
Interest Expense	(30)	(40)	(57)	(79)
Interest income	1	2	1	2
Dividend income - cost investments	26	29	54	58
Other income (expense), net	2	1	2	1
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	227	352	533	625
Income Tax Expense (Benefit)	(24)	(94)	(96)	(172)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	203	258	437	453
Earnings (loss) from operation of discontinued operations	(3)	(1)	(3)	(1)
Discontinued Operation, Tax Effect of Discontinued Operation	1	1	1	1
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(2)	0	(2)	0
Net earnings (loss)	201	258	435	453
Net Income (Loss) Attributable to Noncontrolling Interest	4	1	6	2
Net earnings (loss) attributable to Celanese Corporation	205	259	441	455
Parent Guarantor [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	0	0	0	0
Cost of Goods and Services Sold	0	0	0	0
Gross Profit	0	0	0	0
Selling, General and Administrative Expense	0	0	0	0
Amortization of Intangible Assets	0	0	0	0
Research and Development Expense	0	0	0	0
Other (Charges) Gains, Net	0	0	0	0
Foreign exchange gain (loss), net	0	0	0	0
Gain (loss) on disposition of businesses and assets, net	0	0	0	0
Operating Income (Loss)	0	0	0	0
Equity in net earnings (loss) of affiliates	206	259	441	454
Interest Expense	0	0	0	0
Interest income	0	0	0	0
Dividend income - cost investments	0	0	0	0
Other income (expense), net	0	0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	206	259	441	454
Income Tax Expense (Benefit)	(1)	0	0	1
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	205	259	441	455
Earnings (loss) from operation of discontinued operations	0	0	0	0
Discontinued Operation, Tax Effect of Discontinued Operation	0	0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss)	205	259	441	455
Net Income (Loss) Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss) attributable to Celanese Corporation	205	259	441	455
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	0	0	0	0
Cost of Goods and Services Sold	0	0	0	0
Gross Profit	0	0	0	0
Selling, General and Administrative Expense	0	0	0	0
Amortization of Intangible Assets	0	0	0	0
Research and Development Expense	0	0	0	0
Other (Charges) Gains, Net	0	0	0	0
Foreign exchange gain (loss), net	0	0	0	0
Gain (loss) on disposition of businesses and assets, net	0	0	0	0
Operating Income (Loss)	0	0	0	0
Equity in net earnings (loss) of affiliates	244	282	523	510
Interest Expense	(41)	(49)	(84)	(95)
Interest income	5	17	13	31
Dividend income - cost investments	0	0	0	0
Other income (expense), net	0	0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	208	250	452	446
Income Tax Expense (Benefit)	(2)	9	(11)	8
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	206	259	441	454
Earnings (loss) from operation of discontinued operations	0	0	0	0
Discontinued Operation, Tax Effect of Discontinued Operation	0	0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss)	206	259	441	454
Net Income (Loss) Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss) attributable to Celanese Corporation	206	259	441	454
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	674	679	1,332	1,386
Cost of Goods and Services Sold	(474)	(501)	(905)	(962)
Gross Profit	200	178	427	424
Selling, General and Administrative Expense	(29)	(18)	(53)	(27)
Amortization of Intangible Assets	(2)	(2)	(3)	(4)
Research and Development Expense	(49)	(13)	(59)	(26)
Other (Charges) Gains, Net	0	0	(3)	0
Foreign exchange gain (loss), net	0	0	0	0
Gain (loss) on disposition of businesses and assets, net	(1)	(2)	(3)	(5)
Operating Income (Loss)	119	143	306	362
Equity in net earnings (loss) of affiliates	114	48	206	78
Interest Expense	(8)	(6)	(13)	(12)
Interest income	20	18	39	35
Dividend income - cost investments	0	0	0	0
Other income (expense), net	1	1	1	4
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	246	204	539	467
Income Tax Expense (Benefit)	(29)	(52)	(82)	(122)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	217	152	457	345
Earnings (loss) from operation of discontinued operations	(3)	(1)	(3)	(1)
Discontinued Operation, Tax Effect of Discontinued Operation	1	1	1	1
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(2)	0	(2)	0
Net earnings (loss)	215	152	455	345
Net Income (Loss) Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss) attributable to Celanese Corporation	215	152	455	345
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	1,174	1,357	2,307	2,657
Cost of Goods and Services Sold	(1,011)	(1,149)	(1,995)	(2,300)
Gross Profit	163	208	312	357
Selling, General and Administrative Expense	(77)	(101)	(151)	(196)
Amortization of Intangible Assets	(1)	(3)	(3)	(7)
Research and Development Expense	(10)	(11)	(20)	(20)
Other (Charges) Gains, Net	(10)	2	(12)	1
Foreign exchange gain (loss), net	(3)	(1)	0	(2)
Gain (loss) on disposition of businesses and assets, net	(5)	0	(4)	2
Operating Income (Loss)	57	94	122	135
Equity in net earnings (loss) of affiliates	35	89	75	125
Interest Expense	(8)	(21)	(20)	(40)
Interest income	3	3	9	4
Dividend income - cost investments	26	29	54	58
Other income (expense), net	1	0	1	(3)
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	114	194	241	279
Income Tax Expense (Benefit)	9	(46)	(1)	(57)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	123	148	240	222
Earnings (loss) from operation of discontinued operations	0	0	0	0
Discontinued Operation, Tax Effect of Discontinued Operation	0	0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss)	123	148	240	222
Net Income (Loss) Attributable to Noncontrolling Interest	4	1	6	2
Net earnings (loss) attributable to Celanese Corporation	127	149	246	224
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	(371)	(267)	(712)	(569)
Cost of Goods and Services Sold	383	289	729	574
Gross Profit	12	22	17	5
Selling, General and Administrative Expense	0	0	0	0
Amortization of Intangible Assets	0	0	0	0
Research and Development Expense	0	0	0	0
Other (Charges) Gains, Net	0	0	0	0
Foreign exchange gain (loss), net	0	0	0	0
Gain (loss) on disposition of businesses and assets, net	0	0	0	0
Operating Income (Loss)	12	22	17	5
Equity in net earnings (loss) of affiliates	(559)	(577)	(1,157)	(1,026)
Interest Expense	27	36	60	68
Interest income	(27)	(36)	(60)	(68)
Dividend income - cost investments	0	0	0	0
Other income (expense), net	0	0	0	0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	(547)	(555)	(1,140)	(1,021)
Income Tax Expense (Benefit)	(1)	(5)	(2)	(2)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	(548)	(560)	(1,142)	(1,023)
Earnings (loss) from operation of discontinued operations	0	0	0	0
Discontinued Operation, Tax Effect of Discontinued Operation	0	0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss)	(548)	(560)	(1,142)	(1,023)
Net Income (Loss) Attributable to Noncontrolling Interest	0	0	0	0
Net earnings (loss) attributable to Celanese Corporation	$ (548)	$ (560)	$ (1,142)	$ (1,023)

Consolidating Guarantor Finan87

Consolidating Guarantor Financial Information (Schedule of Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	$ 201	$ 258	$ 435	$ 453
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	37	(22)	(119)	(17)
Gain (loss) on cash flow hedges	1	(3)	3	(6)
Pension and postretirement benefits	4	(14)	1	(26)
Total other comprehensive income (loss), net of tax	41	(39)	(116)	(49)
Total comprehensive income (loss), net of tax	242	219	319	404
Comprehensive (income) loss attributable to noncontrolling interests	4	1	6	2
Comprehensive income (loss) attributable to Celanese Corporation	246	220	325	406
Parent Guarantor [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	205	259	441	455
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	37	(22)	(119)	(17)
Gain (loss) on cash flow hedges	1	(3)	3	(6)
Pension and postretirement benefits	4	(14)	1	(26)
Total other comprehensive income (loss), net of tax	41	(39)	(116)	(49)
Total comprehensive income (loss), net of tax	246	220	325	406
Comprehensive (income) loss attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to Celanese Corporation	246	220	325	406
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	206	259	441	454
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	37	(22)	(119)	(17)
Gain (loss) on cash flow hedges	1	(3)	3	(6)
Pension and postretirement benefits	4	(14)	1	(26)
Total other comprehensive income (loss), net of tax	41	(39)	(116)	(49)
Total comprehensive income (loss), net of tax	247	220	325	405
Comprehensive (income) loss attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to Celanese Corporation	247	220	325	405
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	215	152	455	345
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	56	(9)	(114)	7
Gain (loss) on cash flow hedges	1	0	6	0
Pension and postretirement benefits	3	(14)	0	(26)
Total other comprehensive income (loss), net of tax	59	(23)	(109)	(19)
Total comprehensive income (loss), net of tax	274	129	346	326
Comprehensive (income) loss attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to Celanese Corporation	274	129	346	326
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	123	148	240	222
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	(1)	0	(1)	0
Foreign currency translation	74	2	(137)	(14)
Gain (loss) on cash flow hedges	1	(3)	3	(3)
Pension and postretirement benefits	4	0	4	0
Total other comprehensive income (loss), net of tax	78	(1)	(131)	(17)
Total comprehensive income (loss), net of tax	201	147	109	205
Comprehensive (income) loss attributable to noncontrolling interests	4	1	6	2
Comprehensive income (loss) attributable to Celanese Corporation	205	148	115	207
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (loss)	(548)	(560)	(1,142)	(1,023)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities	3	0	3	0
Foreign currency translation	(167)	29	370	24
Gain (loss) on cash flow hedges	(3)	6	(12)	9
Pension and postretirement benefits	(11)	28	(5)	52
Total other comprehensive income (loss), net of tax	(178)	63	356	85
Total comprehensive income (loss), net of tax	(726)	(497)	(786)	(938)
Comprehensive (income) loss attributable to noncontrolling interests	0	0	0	0
Comprehensive income (loss) attributable to Celanese Corporation	$ (726)	$ (497)	$ (786)	$ (938)

Consolidating Guarantor Finan88

Consolidating Guarantor Financial Information (Schedule of Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 988	$ 780	$ 1,064	$ 984
Trade receivables - third party and affiliates	873	801
Non-trade receivables, net	226	241
Inventories, net	762	782
Deferred income taxes	15	29
Marketable securities, at fair value	29	32
Other assets	30	33
Total current assets	2,923	2,698
Investments in affiliates	821	876
Property, plant and equipment	3,771	3,733
Deferred income taxes	260	253
Other assets	372	377
Goodwill	716	749
Intangible assets, net	125	132
Total assets	8,988	8,818
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	123	137
Trade payables - third party and affiliates	736	757
Other liabilities	298	432
Deferred income taxes	6	7
Income taxes payable	105	5
Total current liabilities	1,268	1,338
Noncurrent Liabilities
Long-term debt	2,552	2,608
Deferred income taxes	127	141
Uncertain tax positions	164	159
Benefit obligations	1,130	1,211
Other liabilities	262	283
Total noncurrent liabilities	4,235	4,402
Total Celanese Corporation stockholders' equity	3,076	2,818
Noncontrolling interests	409	260
Total equity	3,485	3,078
Total liabilities and equity	8,988	8,818
Parent Guarantor [Member]
Current Assets
Cash and cash equivalents	1	0	2	0
Trade receivables - third party and affiliates	0	0
Non-trade receivables, net	36	35
Inventories, net	0	0
Deferred income taxes	0	0
Marketable securities, at fair value	0	0
Other assets	0	0
Total current assets	37	35
Investments in affiliates	3,041	2,784
Property, plant and equipment	0	0
Deferred income taxes	0	0
Other assets	0	0
Goodwill	0	0
Intangible assets, net	0	0
Total assets	3,078	2,819
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	2	1
Deferred income taxes	0	0
Income taxes payable	0	0
Total current liabilities	2	1
Noncurrent Liabilities
Long-term debt	0	0
Deferred income taxes	0	0
Uncertain tax positions	0	0
Benefit obligations	0	0
Other liabilities	0	0
Total noncurrent liabilities	0	0
Total Celanese Corporation stockholders' equity	3,076	2,818
Noncontrolling interests	0	0
Total equity	3,076	2,818
Total liabilities and equity	3,078	2,819
Issuer [Member]
Current Assets
Cash and cash equivalents	0	0	0	0
Trade receivables - third party and affiliates	0	0
Non-trade receivables, net	974	477
Inventories, net	0	0
Deferred income taxes	0	0
Marketable securities, at fair value	0	0
Other assets	0	6
Total current assets	974	483
Investments in affiliates	6,216	5,889
Property, plant and equipment	0	0
Deferred income taxes	16	16
Other assets	102	674
Goodwill	0	0
Intangible assets, net	0	0
Total assets	7,308	7,062
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	1,972	1,894
Trade payables - third party and affiliates	0	0
Other liabilities	18	34
Deferred income taxes	22	22
Income taxes payable	0	0
Total current liabilities	2,012	1,950
Noncurrent Liabilities
Long-term debt	2,234	2,269
Deferred income taxes	14	0
Uncertain tax positions	7	6
Benefit obligations	0	0
Other liabilities	0	53
Total noncurrent liabilities	2,255	2,328
Total Celanese Corporation stockholders' equity	3,041	2,784
Noncontrolling interests	0	0
Total equity	3,041	2,784
Total liabilities and equity	7,308	7,062
Subsidiary Guarantors [Member]
Current Assets
Cash and cash equivalents	115	110	208	284
Trade receivables - third party and affiliates	182	184
Non-trade receivables, net	2,270	2,265
Inventories, net	250	268
Deferred income taxes	26	39
Marketable securities, at fair value	29	32
Other assets	17	12
Total current assets	2,889	2,910
Investments in affiliates	4,199	4,349
Property, plant and equipment	1,022	1,029
Deferred income taxes	237	211
Other assets	154	146
Goodwill	314	314
Intangible assets, net	74	73
Total assets	8,889	9,032
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	700	184
Trade payables - third party and affiliates	354	413
Other liabilities	165	225
Deferred income taxes	0	0
Income taxes payable	542	484
Total current liabilities	1,761	1,306
Noncurrent Liabilities
Long-term debt	373	900
Deferred income taxes	0	0
Uncertain tax positions	29	16
Benefit obligations	863	923
Other liabilities	119	121
Total noncurrent liabilities	1,384	1,960
Total Celanese Corporation stockholders' equity	5,744	5,766
Noncontrolling interests	0	0
Total equity	5,744	5,766
Total liabilities and equity	8,889	9,032
Non-Guarantors [Member]
Current Assets
Cash and cash equivalents	872	670	854	700
Trade receivables - third party and affiliates	888	821
Non-trade receivables, net	382	407
Inventories, net	595	613
Deferred income taxes	11	12
Marketable securities, at fair value	0	0
Other assets	23	34
Total current assets	2,771	2,557
Investments in affiliates	721	613
Property, plant and equipment	2,749	2,704
Deferred income taxes	9	26
Other assets	395	400
Goodwill	402	435
Intangible assets, net	51	59
Total assets	7,098	6,794
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	249	290
Trade payables - third party and affiliates	579	548
Other liabilities	274	402
Deferred income taxes	6	7
Income taxes payable	71	45
Total current liabilities	1,179	1,292
Noncurrent Liabilities
Long-term debt	204	208
Deferred income taxes	115	141
Uncertain tax positions	128	137
Benefit obligations	267	288
Other liabilities	170	192
Total noncurrent liabilities	884	966
Total Celanese Corporation stockholders' equity	4,626	4,276
Noncontrolling interests	409	260
Total equity	5,035	4,536
Total liabilities and equity	7,098	6,794
Eliminations [Member]
Current Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Trade receivables - third party and affiliates	(197)	(204)
Non-trade receivables, net	(3,436)	(2,943)
Inventories, net	(83)	(99)
Deferred income taxes	(22)	(22)
Marketable securities, at fair value	0	0
Other assets	(10)	(19)
Total current assets	(3,748)	(3,287)
Investments in affiliates	(13,356)	(12,759)
Property, plant and equipment	0	0
Deferred income taxes	(2)	0
Other assets	(279)	(843)
Goodwill	0	0
Intangible assets, net	0	0
Total assets	(17,385)	(16,889)
Current Liabilities
Short-term borrowings and current installments of long-term debt - third party and affiliates	(2,798)	(2,231)
Trade payables - third party and affiliates	(197)	(204)
Other liabilities	(161)	(230)
Deferred income taxes	(22)	(22)
Income taxes payable	(508)	(524)
Total current liabilities	(3,686)	(3,211)
Noncurrent Liabilities
Long-term debt	(259)	(769)
Deferred income taxes	(2)	0
Uncertain tax positions	0	0
Benefit obligations	0	0
Other liabilities	(27)	(83)
Total noncurrent liabilities	(288)	(852)
Total Celanese Corporation stockholders' equity	(13,411)	(12,826)
Noncontrolling interests	0	0
Total equity	(13,411)	(12,826)
Total liabilities and equity	$ (17,385)	$ (16,889)

Consolidating Guarantor Finan89

Consolidating Guarantor Financial Information (Schedule of Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 553	$ 417
Investing Activities
Capital expenditures on property, plant and equipment	(117)	(130)
Acquisitions, net of cash acquired	(3)	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	(210)	(143)
Return of capital from subsidiary	0	0
Contributions to subsidiary	0	0
Intercompany loan receipts (disbursements)	0	0
Other, net	(24)	(10)
Net cash provided by (used in) investing activities	(354)	(283)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	(2)	1
Proceeds from short-term borrowings	26	25
Repayments of short-term borrowings	(39)	(43)
Proceeds from long-term debt	0	0
Repayments of long-term debt	(12)	(13)
Purchases of treasury stock, including related fees	0	(103)
Dividends to parent	0	0
Contributions from parent	0	0
Stock option exercises	2	3
Series A common stock dividends	(84)	(67)
Return of capital to parent	0	0
Contributions from noncontrolling interests	155	148
Other, net	(11)	(1)
Net cash provided by (used in) financing activities	35	(50)
Exchange rate effects on cash and cash equivalents	(26)	(4)
Net increase (decrease) in cash and cash equivalents	208	80
Cash and cash equivalents as of beginning of period	780	984
Cash and cash equivalents as of end of period	988	1,064
Parent Guarantor [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	83	169
Investing Activities
Capital expenditures on property, plant and equipment	0	0
Acquisitions, net of cash acquired	0	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	0	0
Return of capital from subsidiary	0	0
Contributions to subsidiary	0	0
Intercompany loan receipts (disbursements)	0	0
Other, net	0	0
Net cash provided by (used in) investing activities	0	0
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	0	0
Proceeds from short-term borrowings	0	0
Repayments of short-term borrowings	0	0
Proceeds from long-term debt	0	0
Repayments of long-term debt	0	0
Purchases of treasury stock, including related fees	0	(103)
Dividends to parent	0	0
Contributions from parent	0	0
Stock option exercises	2	3
Series A common stock dividends	(84)	(67)
Return of capital to parent	0	0
Contributions from noncontrolling interests	0	0
Other, net	0	0
Net cash provided by (used in) financing activities	(82)	(167)
Exchange rate effects on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	1	2
Cash and cash equivalents as of beginning of period	0	0
Cash and cash equivalents as of end of period	1	2
Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	45	109
Investing Activities
Capital expenditures on property, plant and equipment	0	0
Acquisitions, net of cash acquired	0	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	0	0
Return of capital from subsidiary	0	0
Contributions to subsidiary	0	0
Intercompany loan receipts (disbursements)	3	3
Other, net	0	0
Net cash provided by (used in) investing activities	3	3
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	25	61
Proceeds from short-term borrowings	0	0
Repayments of short-term borrowings	0	0
Proceeds from long-term debt	15	0
Repayments of long-term debt	(5)	(5)
Purchases of treasury stock, including related fees	0	0
Dividends to parent	(83)	(168)
Contributions from parent	0	0
Stock option exercises	0	0
Series A common stock dividends	0	0
Return of capital to parent	0	0
Contributions from noncontrolling interests	0	0
Other, net	0	0
Net cash provided by (used in) financing activities	(48)	(112)
Exchange rate effects on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents as of beginning of period	0	0
Cash and cash equivalents as of end of period	0	0
Subsidiary Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	285	333
Investing Activities
Capital expenditures on property, plant and equipment	(74)	(100)
Acquisitions, net of cash acquired	(3)	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	(9)	(34)
Return of capital from subsidiary	0	51
Contributions to subsidiary	(60)	(97)
Intercompany loan receipts (disbursements)	(25)	(61)
Other, net	(12)	(6)
Net cash provided by (used in) investing activities	(183)	(247)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	(1)	10
Proceeds from short-term borrowings	0	0
Repayments of short-term borrowings	0	0
Proceeds from long-term debt	0	0
Repayments of long-term debt	(3)	(3)
Purchases of treasury stock, including related fees	0	0
Dividends to parent	(83)	(168)
Contributions from parent	0	0
Stock option exercises	0	0
Series A common stock dividends	0	0
Return of capital to parent	0	0
Contributions from noncontrolling interests	0	0
Other, net	(10)	(1)
Net cash provided by (used in) financing activities	(97)	(162)
Exchange rate effects on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	5	(76)
Cash and cash equivalents as of beginning of period	110	284
Cash and cash equivalents as of end of period	115	208
Non-Guarantors [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	306	142
Investing Activities
Capital expenditures on property, plant and equipment	(43)	(30)
Acquisitions, net of cash acquired	0	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	(201)	(109)
Return of capital from subsidiary	0	0
Contributions to subsidiary	0	0
Intercompany loan receipts (disbursements)	(15)	0
Other, net	(12)	(4)
Net cash provided by (used in) investing activities	(271)	(143)
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	(1)	(9)
Proceeds from short-term borrowings	26	25
Repayments of short-term borrowings	(39)	(43)
Proceeds from long-term debt	0	0
Repayments of long-term debt	(7)	(8)
Purchases of treasury stock, including related fees	0	0
Dividends to parent	0	0
Contributions from parent	60	97
Stock option exercises	0	0
Series A common stock dividends	0	0
Return of capital to parent	0	(51)
Contributions from noncontrolling interests	155	148
Other, net	(1)	0
Net cash provided by (used in) financing activities	193	159
Exchange rate effects on cash and cash equivalents	(26)	(4)
Net increase (decrease) in cash and cash equivalents	202	154
Cash and cash equivalents as of beginning of period	670	700
Cash and cash equivalents as of end of period	872	854
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	(166)	(336)
Investing Activities
Capital expenditures on property, plant and equipment	0	0
Acquisitions, net of cash acquired	0	0
Proceeds from sale of businesses and assets, net	0	0
Capital expenditures related to Fairway Methanol LLC	0	0
Return of capital from subsidiary	0	(51)
Contributions to subsidiary	60	97
Intercompany loan receipts (disbursements)	37	58
Other, net	0	0
Net cash provided by (used in) investing activities	97	104
Financing Activities
Net change in short-term borrowings with maturities of 3 months or less	(25)	(61)
Proceeds from short-term borrowings	0	0
Repayments of short-term borrowings	0	0
Proceeds from long-term debt	(15)	0
Repayments of long-term debt	3	3
Purchases of treasury stock, including related fees	0	0
Dividends to parent	166	336
Contributions from parent	(60)	(97)
Stock option exercises	0	0
Series A common stock dividends	0	0
Return of capital to parent	0	51
Contributions from noncontrolling interests	0	0
Other, net	0	0
Net cash provided by (used in) financing activities	69	232
Exchange rate effects on cash and cash equivalents	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents as of beginning of period	0	0
Cash and cash equivalents as of end of period	$ 0	$ 0

Consolidating Guarantor Finan90

Consolidating Guarantor Financial Information (Narrative) (Details)	6 Months Ended
	Jun. 30, 2015
Consolidating Guarantor Financial Information [Abstract]
Issuer and subsidiary guarantors, ownership percentage	100.00%