Union Carbide 10-K 13 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	UNION CARBIDE CORP /NEW/
Entity Central Index Key	100790
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Document Type	10-K
Document Period End Date	31-Dec-14
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding	1,000
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float	$0

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements of Operations [Abstract]
Net trade sales	$82	$161	$177
Net sales to related companies	6,835	6,787	6,070
Total Net Sales	6,917	6,948	6,247
Cost of sales	5,922	6,214	6,088
Research and development expenses	20	25	35
Selling, general and administrative expenses	9	12	10
Asbestos-related charge	-78	0	0
Restructuring charges (credits)	3	0	-74
Equity in earnings of nonconsolidated affiliates	7	82	59
Sundry income (expense) - net	14	308	-182
Interest income	11	12	14
Interest expense and amortization of debt discount	32	32	28
Income (Loss) Before Income Taxes	891	1,067	-97
Provision for income taxes	304	319	17
Net Income (Loss) Attributable to Union Carbide Corporation	$587	$748	($114)

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net Income (Loss) Attributable to Union Carbide Corporation	$587	$748	($114)
Other Comprehensive Income (Loss), Net of Tax
Cumulative translation adjustments	15	-22	-4
Pension and other postretirement benefit plan adjustments	-213	322	-209
Total other comprehensive income (loss)	-198	300	-213
Comprehensive Income (Loss) Attributable to Union Carbide Corporation	$389	$1,048	($327)

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Current Assets
Cash and cash equivalents	$23	$33
Accounts receivable:
Trade (net of allowance for doubtful receivables - 2014: $-; 2013: $-)	29	25
Related companies	1,285	390
Other	67	40
Income taxes receivable	476	40
Notes receivable from related companies	1,292	2,404
Inventories	378	404
Deferred income taxes and other current assets	139	101
Total current assets	3,689	3,437
Investments
Investments in related companies	813	823
Investments in nonconsolidated affiliates	13	6
Other investments	8	9
Noncurrent receivables	44	30
Noncurrent receivables from related companies	131	166
Total investments	1,009	1,034
Property
Property	6,831	7,079
Less accumulated depreciation	5,679	5,840
Net property	1,152	1,239
Other Assets
Intangible assets (net of accumulated amortization 2014: $73; 2013: $72)	15	10
Deferred income tax assets - noncurrent	441	692
Asbestos-related insurance receivables - noncurrent	62	86
Deferred charges and other assets	45	51
Total other assets	563	839
Total Assets	6,413	6,549
Current Liabilities
Notes payable - related companies	43	34
Long-term debt due within one year	1	0
Accounts payable:
Trade	248	215
Related companies	872	398
Other	17	21
Income taxes payable	20	213
Asbestos-related liabilities - current	105	91
Accrued and other current liabilities	192	182
Total current liabilities	1,498	1,154
Long-Term Debt	481	471
Other Noncurrent Liabilities
Pension and other postretirement benefits - noncurrent	1,051	684
Asbestos-related liabilities - noncurrent	438	434
Other noncurrent obligations	136	95
Total other noncurrent liabilities	1,625	1,213
Stockholder's Equity
Common stock (authorized and issued: 1,000 shares of $0.01 par value each)	0	0
Additional paid-in capital	312	312
Retained earnings	3,740	4,442
Accumulated other comprehensive loss	-1,243	-1,045
Union Carbide Corporation's stockholder's equity	2,809	3,709
Noncontrolling interests	0	2
Total equity	2,809	3,711
Total Liabilities and Equity	$6,413	$6,549

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, except Share data, unless otherwise specified
Current Assets
Allowance for Doubtful Accounts Receivable	$0	$0
Other Assets
Other Intangible Assets (accumulated amortization)	$73	$72
Stockholders' Equity
Common Stock, Par or Stated Value Per Share	$0.01	$0.01
Common Stock, Shares Authorized	1,000	1,000
Common Stock, Shares, Issued	1,000	1,000

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Operating Activities
Net Income (Loss) Attributable to Union Carbide Corporation	$587	$748		($114)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	202	222		235
Provision (credit) for deferred income tax	349	-29		12
Earnings of nonconsolidated affiliates less than (in excess of) dividends received	-7	-21		13
Net gains on sales of assets	-70	-368		-4
Asbestos-related charge	-78	0		0
Restructuring charges (credits)	-3	0		74
Impairment of investment in related company	0	25	[1]	131	[1]
Pension contributions	-2	-158		-158
Other, net	0	2		-1
Changes in assets and liabilities, net of effects of divested companies:
Accounts and notes receivable	-19	4		-6
Related company receivables	217	-135		970
Inventories	27	-3		-213
Accounts payable	28	-80		25
Related company payables	484	-32		54
Other assets and liabilities	-622	105		82
Cash provided by operating activities	1,249	280		1,100
Investing Activities
Capital expenditures	-166	-121		-241
Purchase of related company receivables	0	0		-8
Change in noncurrent receivable from related company	35	23		-53
Proceeds from sale of ownership interest in nonconsolidated affiliate	0	13		0
Proceeds from sales of assets	153	411		7
Purchases of investments	0	0		-1
Cash provided by (used in) investing activities	22	326		-296
Financing Activities
Dividends paid to stockholder	-1,280	-591		-775
Payments on long-term debt	-1	0		-37
Cash used in financing activities	-1,281	-591		-812
Summary
Increase (decrease) in cash and cash equivalents	-10	15		-8
Cash and cash equivalents at beginning of year	33	18		26
Cash and cash equivalents at end of period	$23	$33		$18
[1]	See Note 17 for additional information.

Consolidated_Statements_of_Equ

Consolidated Statements of Equity (USD $)	Total	Union Carbide Corporation's Stockholder's Equity [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss, Net of Tax [Member]	Noncontrolling Interest [Member]
In Millions, unless otherwise specified
Union Carbide Corporation's Stockholder's Equity, Beginning at Dec. 31, 2011			$0	$312	$5,253	($1,132)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	-114				-114
Dividends declared					-784
Other comprehensive income (loss)	-213					-213
Noncontrolling interests							2
Total Equity at Dec. 31, 2012	3,324
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2012		3,322	0	312	4,355	-1,345
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	748				748
Dividends declared					-661
Other comprehensive income (loss)	300					300
Noncontrolling interests	2						2
Total Equity at Dec. 31, 2013	3,711
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2013	3,709	3,709	0	312	4,442	-1,045
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	587				587
Dividends declared					-1,289
Other comprehensive income (loss)	-198					-198
Noncontrolling interests	0						0
Total Equity at Dec. 31, 2014	2,809
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2014	$2,809	$2,809	$0	$312	$3,740	($1,243)

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Principles of Consolidation and Basis of Presentation
	Except as otherwise indicated by the context, the terms “Corporation” and “UCC” as used herein mean Union Carbide Corporation and its consolidated subsidiaries. The accompanying consolidated financial statements of the Corporation were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and include the assets, liabilities, revenues and expenses of all majority-owned subsidiaries over which the Corporation exercises control and, when applicable, entities for which the Corporation has a controlling financial interest. Intercompany transactions and balances are eliminated in consolidation. Investments in nonconsolidated affiliates (20-50 percent owned companies, joint ventures and partnerships) are accounted for using the equity method.
	The Corporation is a wholly owned subsidiary of The Dow Chemical Company (“Dow”). In accordance with the accounting requirements for wholly owned subsidiaries, the presentation of earnings per share is not required and therefore is not provided.
	Dow conducts its worldwide operations through global businesses, and the Corporation's business activities comprise components of Dow's global operations rather than stand-alone operations. The Corporation sells substantially all of its products to Dow at market-based prices, in accordance with Dow's long-standing intercompany pricing policy, in order to simplify the customer interface process. Because there are no separable reportable business segments for UCC and no detailed business information is provided to a chief operating decision maker regarding the Corporation's stand-alone operations, the Corporation's results are reported as a single operating segment.
	Related Companies
	Transactions with the Corporation's parent company, Dow, or other Dow subsidiaries have been reflected as related company transactions in the consolidated financial statements.
	Use of Estimates in Financial Statement Preparation
	The preparation of financial statements in accordance with U.S. GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. The Corporation's consolidated financial statements include amounts that are based on management's best estimates and judgments. Actual results could differ from those estimates.
	Foreign Currency Translation
	While the Corporation's consolidated subsidiaries are primarily based in the United States, the Corporation has small subsidiaries in Asia Pacific. For those subsidiaries, the local currency has been primarily used as the functional currency. Translation gains and losses of those operations that use local currency as the functional currency are included in the consolidated balance sheets in "Accumulated other comprehensive loss" ("AOCL"). Where the U.S. dollar is used as the functional currency, foreign currency gains and losses are reflected in income.
	Environmental Matters
	Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated based on current law and existing technologies. These accruals are adjusted periodically as assessment and remediation efforts progress or as additional technical or legal information becomes available. Accruals for environmental liabilities are included in the consolidated balance sheets in “Accrued and other current liabilities” and “Other noncurrent obligations” at undiscounted amounts. Accruals for related insurance or other third-party recoveries for environmental liabilities are recorded when it is probable that a recovery will be realized and are included in the consolidated balance sheets as “Accounts receivable - Other.”
	Environmental costs are capitalized if the costs extend the life of the property, increase its capacity, and/or mitigate or prevent contamination from future operations. Environmental costs are also capitalized in recognition of legal asset retirement obligations resulting from the acquisition, construction and/or normal operation of a long-lived asset. Costs related to environmental contamination treatment and cleanup are charged to expense. Estimated future incremental operations, maintenance and management costs directly related to remediation are accrued when such costs are probable and reasonably estimable.
	Cash and Cash Equivalents
	Cash and cash equivalents include time deposits and investments with maturities of three months or less at the time of purchase.
	Financial Instruments
	The Corporation calculates the fair value of financial instruments using quoted market prices whenever available. When quoted market prices are not available for various types of financial instruments (such as forwards, options and swaps), the Corporation uses standard pricing models with market-based inputs that take into account the present value of estimated future cash flows.
	Inventories
	Inventories are stated at the lower of cost or market. The method of determining cost for each subsidiary varies among last-in, first-out (“LIFO”); first-in, first-out (“FIFO”); and average cost, and is used consistently from year to year.
	The Corporation routinely exchanges and swaps raw materials and finished goods with other companies to reduce delivery time, freight and other transportation costs. These transactions are treated as non-monetary exchanges and are valued at cost.
	Property
	Land, buildings and equipment, including property under capital lease agreements, are carried at cost less accumulated depreciation. Depreciation is based on the estimated service lives of depreciable assets and is calculated using the straight-line method. Fully depreciated assets are retained in property and accumulated depreciation accounts until they are removed from service. In the case of disposals, assets and related accumulated depreciation are removed from the accounts, and the net amounts, less proceeds from disposal, are included in income.
	Impairment and Disposal of Long-Lived Assets
	The Corporation evaluates long-lived assets and certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. When undiscounted future cash flows are not expected to be sufficient to recover an asset's carrying amount, the asset is written down to its fair value based on bids received from third parties or a discounted cash flow analysis based on market participant assumptions.
	Long-lived assets to be disposed of by sale, if material, are classified as held for sale and reported at the lower of carrying amount or fair value less cost to sell, and depreciation is ceased. Long-lived assets to be disposed of other than by sale are classified as held and used until they are disposed of and reported at the lower of carrying amount or fair value, and depreciation is recognized over the remaining useful life of the assets.
	Asset Retirement Obligations
	The Corporation records asset retirement obligations as incurred and reasonably estimable, including obligations for which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the Corporation. The fair values of obligations are recorded as liabilities on a discounted basis and are accreted over time for the change in present value. Costs associated with the liabilities are capitalized and amortized over the estimated remaining useful life of the asset, generally for periods of 10 years or less.
	Investments in Related Companies
	Investments in related companies consist of the Corporation's ownership interests in Dow subsidiaries located in North America and Latin America. The Corporation accounts for these investments using the cost method as it does not have significant influence over the operating and financial policies of these related companies.
	Investments
	Investments in debt securities are classified as available-for-sale and reported at fair value with unrealized gains and losses recorded in AOCL. The cost of investments sold is determined by specific identification. The Corporation routinely reviews available-for-sale securities for other-than-temporary declines in fair value below the cost basis, and when events or changes in circumstances indicate the carrying value of an asset may not be recoverable, the security is written down to fair value establishing a new cost basis.
	Revenue
	Substantially all of the Corporation's revenues are generated by sales to Dow. Approximately 99 percent of the Corporation's sales are related to sales of product (97 percent in 2013 and 96 percent in 2012); the remaining 1 percent is related to the licensing of patents and technology (3 percent in 2013 and 4 percent in 2012).
	Revenue for product sales to related companies is recognized as risk and title to the product transfer to the related company, which occurs either at the time production is complete or free on board (“FOB”) UCC's manufacturing facility, in accordance with the sales agreement between the Corporation and Dow.
	Revenue for product sales is recognized as risk and title to the product transfer to the customer, which for trade sales, usually occurs at the time shipment is made. As such, title to the product passes when the product is delivered to the freight carrier. UCC's standard terms of delivery are included in its contracts of sale, order confirmation documents, and invoices. Freight costs and any directly related costs of transporting finished product to customers are recorded as “Cost of sales” in the consolidated statements of operations.
	Revenue related to the initial licensing of patents and technology is recognized when earned; revenue related to running royalties is recognized according to licensee production levels.
	Legal Costs
	The Corporation expenses legal costs as incurred. Accruals for legal matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated.
	Severance Costs
	Management routinely reviews its operations around the world in an effort to ensure competitiveness across its operations and geographic areas. When the reviews result in a workforce reduction related to the shutdown of facilities or other optimization activities, severance benefits are provided to employees primarily under ongoing benefit arrangements. These severance costs are accrued once management commits to a plan of termination including the number of employees to be terminated, their job classifications or functions, their locations and the expected termination date.
	Income Taxes
	The Corporation accounts for income taxes using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences of temporary differences between the carrying amounts and tax bases of assets and liabilities using enacted tax rates. The effect of a change in tax rates on deferred tax assets or liabilities is recognized in income in the period that includes the enactment date. The Corporation is included in Dow's consolidated federal income tax group and consolidated income tax return. The Corporation accounts for its income taxes following the formula in the Dow-UCC Tax Sharing Agreement used to compute the amount due to Dow or UCC for UCC's share of taxable income and tax attributes on Dow's consolidated income tax return. This method generally follows the separate return method. The amounts reported as income taxes payable or receivable represent the Corporation's payment obligation (or refundable amount) to Dow based on a theoretical tax liability calculated on a separate return method.
	Annual tax provisions include amounts considered sufficient to pay assessments that may result from examinations of prior year tax returns; however, the amount ultimately paid upon resolution of issues raised may differ from the amounts accrued.
	The Corporation recognizes the financial statement effects of an uncertain income tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. The Corporation accrues for non-income tax contingencies when it is probable that a liability to a taxing authority has been incurred and the amount of the contingency can be reasonably estimated. The current portion of uncertain income tax positions is included in “Income taxes payable” and the long-term portion is included in “Other noncurrent obligations” in the consolidated balance sheets.
	Provision is made for taxes on undistributed earnings of foreign subsidiaries and related companies to the extent that such earnings are not deemed to be permanently invested.

RECENT_ACCOUNTING_GUIDANCE

RECENT ACCOUNTING GUIDANCE	12 Months Ended
	Dec. 31, 2014
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Guidance [Text Block]	RECENT ACCOUNTING GUIDANCE
	Recently Adopted Accounting Guidance
	During the fourth quarter of 2014, the Corporation adopted Accounting Standard Update ("ASU") 2014-08, "Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity," which changes the criteria for determining which disposals can be presented as discontinued operations and modifies related disclosure requirements. This ASU is effective for fiscal years beginning on or after December 15, 2014, and interim periods within those years. Early adoption is permitted, but only for disposals (or classifications as held for sale) that have not been reported in the financial statements previously issued or available for issuance. The adoption of this standard did not have a material impact on the consolidated financial statements.
	Accounting Guidance Issued But Not Adopted as of December 31, 2014
	In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which is the new comprehensive revenue recognition standard that will supersede all existing revenue recognition guidance under U.S. GAAP. The standard's core principle is that a company will recognize revenue when it transfers promised goods or services to a customer in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. This ASU is effective for annual and interim periods beginning on or after December 15, 2016, and early adoption is not permitted. Entities will have the option of using either a full retrospective approach or a modified approach to adopt the guidance in the ASU. The Corporation is currently evaluating the impact of adopting this guidance.

RESTRUCTURING

RESTRUCTURING	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	RESTRUCTURING
	On October 22, 2012, the Board of Directors of the Corporation approved a restructuring plan to improve the cost effectiveness of the Corporation's global operations. The restructuring plan affected approximately 100 positions and resulted in the shutdown of certain manufacturing facilities. These actions were substantially completed at December 31, 2014.
	As a result of the restructuring activities, the Corporation recorded pretax restructuring charges of $71 million in the fourth quarter of 2012 consisting of costs associated with exit or disposal activities of $13 million, severance costs of $10 million and asset write-downs and write-offs of $48 million. The impact of these charges is shown as "Restructuring charges (credits)" in the consolidated statements of operations.
	Details on the components of the restructuring charges are discussed below:
	Cost Associated with Exit or Disposal Activities
	The restructuring charges for costs associated with exit or disposal activities totaled $13 million in the fourth quarter of 2012 for contract cancellations fees.
	Severance
	The restructuring charges in the fourth quarter of 2012 included severance of $10 million for the separation of approximately 100 employees under the terms of the Corporation's ongoing benefit arrangements, primarily by March 31, 2015. At December 31, 2014, severance of $9 million had been paid and a liability of $1 million remained for nine employees.
	Impairment of Long-Lived Assets, Other Assets and Equity Method Investments
	The restructuring charges related to the write-down and write-off of assets in the fourth quarter of 2012 total $48 million. Details regarding the write-downs and write-offs are as follows:
	•	Certain oxygenated solvents manufacturing facilities in Texas City, Texas, have been consolidated and/or shut down, resulting in an asset write-down of $36 million. The facilities were shut down in the fourth quarter of 2012.
	•	A performance monomer manufacturing facility in South Charleston, West Virginia, was shut down, resulting in an asset write-down of $1 million and the write-off of other assets totaling $2 million. The assets were shut down in the fourth quarter of 2012.
	•	Due to a change in the Corporation's strategy regarding its ownership in Nippon Unicar Company Limited ("NUC"), a 50:50 joint venture, the Corporation had determined its equity investment in NUC to be other-than-temporarily impaired and recorded a $9 million write-down of its interest in NUC. UCC completed the sale of its 50 percent ownership interest in NUC on July 1, 2013.
	The following table summarizes the activities related to the Corporation's restructuring reserve:
	Restructuring Activities		Costs Associated with Exit or Disposal Activities			Severance Costs			Impairment of Long-Lived Assets, Other Assets and Equity Method Investments
	In millions											Total
	Restructuring charges recognized in the fourth quarter of 2012		$	13		$	10		$	48		$	71
	Charges against the reserve		—			—			(48		)	(48		)
	Reserve balance at December 31, 2012		$	13		$	10		$	—		$	23
	Cash payments		(2		)	(6		)	—			(8		)
	Reserve balance at December 31, 2013		$	11		$	4		$	—		$	15
	Adjustments to the reserve		(3		)	—			—			(3		)
	Cash payments		(2		)	(3		)	—			(5		)
	Reserve balance at December 31, 2014		$	6		$	1		$	—		$	7
	The reserve balance is included in the consolidated balance sheets as "Accrued and other current liabilities" and "Other noncurrent obligations."
	The Corporation expects to incur additional costs in the future related to its restructuring activities, as UCC continually looks for ways to enhance the efficiency and cost effectiveness of its operations. Future costs are expected to include demolition costs related to closed facilities; these will be recognized as incurred. The Corporation also expects to incur additional employee-related costs, including involuntary termination benefits, related to its other optimization activities. These costs cannot be reasonably estimated at this time.
	In the first quarter of 2012, the Corporation recorded restructuring charges totaling $3 million related to a workforce reduction of approximately 20 employees. In the third quarter of 2012, all severance related to this restructuring charge was paid.
	2014 Adjustments to the 4Q12 Restructuring Plan
	In 2014, the Corporation reduced the 4Q12 restructuring reserve related to contract cancellation fees by $3 million.

DIVESTITURES

DIVESTITURES	12 Months Ended
	Dec. 31, 2014
Divestitures [Abstract]
Divestitures [text block]	DIVESTITURES
	Divestiture of Polypropylene Licensing and Catalysts Business
	On October 11, 2013, Dow entered into a definitive agreement to sell its global Polypropylene Licensing and Catalysts business to W.R. Grace & Co., which included the Corporation's polypropylene catalysts manufacturing facility in Norco, Louisiana as well as customer contracts, accounts receivable, licenses, intellectual property and inventory. On December 2, 2013, the sale was completed and proceeds allocated to the Corporation for the sale were $398 million, net of working capital adjustments and costs to sell, with proceeds subject to customary post-closing adjustments, which were finalized in the fourth quarter of 2014. The carrying amount of the assets divested on December 2, 2013, are noted below:
	Assets Divested	2-Dec-13
	In millions
	Accounts receivable	$	4
	Inventories	19
	Net property	7
	Total assets divested	$	30
	The Corporation recognized a pretax gain of $368 million on the sale, included in "Sundry income (expense) - net" in the consolidated statements of operations and an after-tax gain of $233 million.
	Post-closing adjustments were finalized in the fourth quarter of 2014 and the Corporation recorded a pretax gain of $4 million ($3 million after tax) for the post-closing adjustments. The gain was included in "Sundry income (expense) - net" in the consolidated statements of operations.

INVENTORIES

INVENTORIES	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventory Disclosure [Text Block]	INVENTORIES
	The following table provides a breakdown of inventories:
	Inventories at December 31	2014		2013
	In millions
	Finished goods	$	205	$	233
	Work in process	30		31
	Raw materials	45		50
	Supplies	98		90
	Total inventories	$	378	$	404
	The reserves reducing inventories from a FIFO basis to a LIFO basis amounted to $125 million at December 31, 2014 and $132 million at December 31, 2013. Inventories that were valued on a LIFO basis, principally U.S. chemicals and plastics product inventories, represented 67 percent of the total inventories at December 31, 2014 and 70 percent of the total inventories at December 31, 2013.
	A reduction of certain inventories resulted in the liquidation of some of the Corporation's LIFO inventory layers which had an immaterial impact on pretax income in 2014, 2013 and 2012.

PROPERTY

PROPERTY	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	PROPERTY
	Property at December 31	Estimated Useful
	In millions	Lives (Years)		2014			2013
	Land	—		$	49		$	51
	Land and waterway improvements	15-25		208			204
	Buildings	May-50		419			412
	Machinery and equipment	20-Mar		5,744			5,862
	Utility and supply lines	20-May		158			157
	Other property	30-Mar		96			291
	Construction in progress	—		157			102
	Total property			$	6,831		$	7,079
	In millions	2014			2013			2012
	Depreciation expense	$	176		$	204		$	217
	Manufacturing maintenance and repair costs	$	295		$	304		$	324
	Capitalized interest	$	5		$	5		$	8

NONCONSOLIDATED_AFFILIATES

NONCONSOLIDATED AFFILIATES	12 Months Ended
	Dec. 31, 2014
Nonconsolidated Affiliates [Abstract]
Equity Method Investments Disclosure [Text Block]	NONCONSOLIDATED AFFILIATES
	The Corporation's investments in companies accounted for by the equity method (“nonconsolidated affiliates”) were $13 million at December 31, 2014 and $6 million at December 31, 2013. Dividends received from nonconsolidated affiliates were zero in 2014, $62 million in 2013 and $72 million in 2012. Undistributed earnings of nonconsolidated affiliates included in retained earnings were $7 million at December 31, 2014 and zero at December 31, 2013.
	All of the nonconsolidated affiliates in which the Corporation has investments are privately held companies; therefore, quoted market prices are not available.
	Principal Nonconsolidated Affiliates
	The Corporation's principal nonconsolidated affiliates and the Corporation's ownership interest for each at December 31, 2014, 2013 and 2012 are shown below:
	Principal Nonconsolidated Affiliates at December 31	Ownership Interest
		2014	2013	2012
	Nippon Unicar Company Limited	—%	—%	50%
	Univation Technologies, LLC	—%	—%	50%
	Divestiture
	On January 31, 2013, UCC entered into a definitive agreement to sell its 50 percent ownership interest in NUC to TonenGeneral Sekiyu K. K. On July 1, 2013, the sale was completed for $13 million. As a result of this share sale, the Corporation reclassified a $20 million gain, primarily attributable to cumulative translation adjustments, from "Accumulated other comprehensive loss" into earnings and is included in "Sundry income (expense) - net" in the consolidated statements of operations for the year ended December 31, 2013. Including this reclassification, the sale resulted in no pretax gain or loss.
	Stock Dividend
	On September 26, 2013, UCC declared a stock dividend to Dow of its 100 percent ownership interest in Union Carbide Subsidiary C, Inc., which included UCC's full ownership interest in Univation. This stock dividend was effective on September 29, 2013 and totaled $70 million.
	Summarized Income Statement Information
	In millions	2014			2013 (1)		2012
	Sales	$	—		$	452	$	773
	Gross profit	$	—		$	208	$	209
	Net income	$	—		$	142	$	112
	-1	Income statement information for NUC is for the six-month period ended June 30, 2013 and income statement information for Univation is for the nine-month period ended September 30, 2013.
	The Corporation had no investment in principal nonconsolidated affiliates at December 31, 2014 and December 31, 2013, and its equity in earnings was zero in 2014, $84 million in 2013 and $59 million in 2012. The summarized income statement information presented represents the combined accounts (at 100 percent) of the principal nonconsolidated affiliates. See Note 3 for details on the 2012 impairment charge related to NUC.

INVESTMENTS_IN_RELATED_COMPANI

INVESTMENTS IN RELATED COMPANIES	12 Months Ended
	Dec. 31, 2014
Investments in Related Companies [Abstract]
Cost-method Investments, Description [Text Block]	INVESTMENTS IN RELATED COMPANIES
	The Corporation's ownership interests in related companies at December 31, 2014 and 2013 were as follows:
	Investments in Related Companies at December 31	Ownership Interest				Investment Balance
	In millions (except percentages)	2014		2013		2014		2013
	Dow International Holdings Company	19	%	19	%	$	807	$	807
	Dow Quimica Argentina S.A.	23	%	23	%	—		—
	Dow Quimica Mexicana S.A. de C.V.	15	%	15	%	5		5
	GWN Holding, Inc.	—	%	6	%	—		10
	Other	—	%	—	%	1		1
	Total Investments in Related Companies					$	813	$	823
	In the fourth quarter of 2014, UCC authorized a distribution to Dow of its shares of common stock in GWN Holdings, Inc. ("GWN"). Prior to the stock distribution, GWN was owned 6.3 percent by UCC and 93.7 percent by Dow and its other wholly owned subsidiaries. Prior to this distribution, UCC's investment in GWN was $10 million, accounted for as a cost method investment. No gain or loss was recorded on the stock distribution.
	In the fourth quarter of 2013, the Corporation recorded an impairment charge of $25 million for the full value of the cost method investment in Dow Quimica Argentina S.A. The related company investment, classified as a Level 3 measurement, was valued using unobservable inputs. The impairment charge was triggered by ongoing losses in the entity and is included in "Sundry income (expense) - net" in the consolidated statements of operations.

INTANGIBLE_ASSETS

INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2014
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets Disclosure [Text Block]	INTANGIBLE ASSETS
	The following table provides information regarding the Corporation's intangible assets:
	Intangible Assets at December 31			2014							2013
	In millions	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
	Intangible assets with finite lives:
	Licenses and intellectual property	$	33	$	(33	)	$	—	$	33	$	(33	)	$	—
	Software	55		(40		)	15		49		(39		)	10
	Total intangible assets	$	88	$	(73	)	$	15	$	82	$	(72	)	$	10
	The following table provides information regarding amortization expense:
	Amortization Expense	2014		2013			2012
	In millions
	Software (1)	$	2	$	2		$	2
	-1	Included in “Cost of sales” in the consolidated statements of operations.
	Total estimated amortization expense for the next five fiscal years is as follows:
	Estimated Amortization Expense for Next Five Years
	In millions
	2015	$	2
	2016	$	3
	2017	$	3
	2018	$	3
	2019	$	2

FINANCIAL_INSTRUMENTS

FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2014
Financial Instruments [Abstract]
Financial Instruments Text Block	FINANCIAL INSTRUMENTS
	Investments
	The Corporation's investments in marketable securities are classified as available-for-sale. There were no proceeds from sales of available-for-sale securities in 2014, 2013 and 2012.
	Portfolio managers regularly review all of the Corporation's holdings to determine if any investments are other-than-temporarily impaired. The analysis includes reviewing the amount of the impairment, as well as the length of time it has been impaired. In addition, specific guidelines for each instrument type are followed to determine if an other-than-temporary impairment has occurred. At December 31, 2014 and December 31, 2013, there were no impairment indicators or circumstances that would result in a material adjustment of these investments.
	The Corporation's investments in debt securities, shown below, had contractual maturities of less than 10 years at December 31, 2014.
	Fair Value of Financial Instruments:
		At December 31, 2014											At December 31, 2013
	In millions	Cost			Gain		Loss			Fair Value			Cost			Gain		Loss			Fair Value
	Debt securities (1)	$	5		$	—	$	—		$	5		$	5		$	—	$	—		$	5
	Long-term debt	$	(482	)	$	—	$	(119	)	$	(601	)	$	(471	)	$	—	$	(85	)	$	(556	)
	-1	Marketable securities are included in “Other investments” in the consolidated balance sheets.
	Cost approximates fair value for all other financial instruments.

FAIR_VALUE_MEASUREMENTS

FAIR VALUE MEASUREMENTS	12 Months Ended
	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	FAIR VALUE MEASUREMENTS
	Fair Value Measurements on a Recurring Basis
	The following table summarizes the basis used to measure certain assets and liabilities at fair value on a recurring basis:
	Basis of Fair Value Measurements	Significant Other Observable Inputs			Significant Other Observable Inputs
	on a Recurring Basis	(Level 2)			(Level 2)
	at December 31
	In millions	2014			2013
	Assets at fair value:
	Debt securities (1)	$	5		$	5
	Liabilities at fair value:
	Long-term debt (2)	$	601		$	556
	-1	Included in “Other investments” in the consolidated balance sheets.
	-2	See Note 10 for information on fair value measurements of long-term debt.
	For assets and liabilities classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability, or by using observable market data points of similar, more liquid securities to imply the price. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance/quality checks.
	Assets that are measured using significant other observable inputs are primarily valued by reference to quoted prices of similar assets in active markets, adjusted for any terms specific to that asset. For all other assets for which observable inputs are used, fair value is derived through the use of fair value models, such as a discounted cash flow model or other standard pricing models. There were no transfers between Levels 1 and 2 during the years ended December 31, 2014 and 2013.
	Fair Value Measurements on a Nonrecurring Basis
	The following table summarizes the basis used to measure certain assets and liabilities at fair value on a nonrecurring basis in the consolidated balance sheets in 2012:
	Basis of Fair Value Measurements on a Nonrecurring Basis in 2012		Significant Other Unobservable Inputs			Total Losses
	In millions		(Level 3)			2012
	Assets at fair value:
	Long-lived assets, other assets and equity method investment		$	42		$	(179	)
	2012 Fair Value Measurements on a Nonrecurring Basis
	As part of the restructuring plan that was approved on October 22, 2012, the Corporation shut down a number of manufacturing facilities during the fourth quarter of 2012. The manufacturing assets and facilities associated with this plan were written down to zero in the fourth quarter of 2012. In addition, an equity investment was impaired. The equity investment, classified as a Level 3 measurement, was valued at $33 million using unobservable inputs, including assumptions a market participant would use to measure the fair value of the group of assets. These impairment charges, totaling $48 million, were included in "Restructuring charges (credits)" in the consolidated statements of operations. See Note 3 for additional information. Also included within the losses is a charge of $131 million related to an impairment of an investment in a related company. The investment, classified as a Level 3 measurement, was valued at $9 million using unobservable inputs, including assumptions a market participant would use to measure fair value of the group of assets. See Note 17 for additional information.

SUPPLEMENTARY_INFORMATION

SUPPLEMENTARY INFORMATION	12 Months Ended
	Dec. 31, 2014
Supplementary Information [Abstract]
Supplementary Information [Text Block]	SUPPLEMENTARY INFORMATION
	Sundry Income (Expense) - Net
	In millions	2014			2013			2012
	Dow administrative and overhead fees (1)	$	(26	)	$	(25	)	$	(32	)
	Net commission expense - related company (1)	(21		)	(17		)	(35		)
	Dividend income - related companies (1)	12			16			25
	Net gain on sale of railcar fleet (1)	66			—			—
	Reclassification of cumulative translation adjustment	(16		)	—			—
	Net gain on sale of Dow's Polypropylene Licensing and Catalysts business (2)	4			368			—
	Net gain on sales of property (1)	4			—			5
	Impairment of investment in related company (1)	—			(25		)	(131		)
	Foreign exchange loss	—			(2		)	—
	Other - net	(9		)	(7		)	(14		)
	Total sundry income (expense) - net	$	14		$	308		$	(182	)
	-1	See Note 17 for additional information.
	-2	See Note 4 for additional information.
	Accrued and Other Current Liabilities
	"Accrued and other current liabilities" were $192 million at December 31, 2014 and $182 million at December 31, 2013. The current portion of the Corporation's accrued obligations for environmental matters, which is a component of "Accrued and other current liabilities," was $69 million at December 31, 2014 and $58 million at December 31, 2013 (see Note 13 for additional information). No other component of accrued and other current liabilities was more than 5 percent of total current liabilities.
	Supplementary Cash Flow Information
	In millions	2014			2013			2012
	Cash payments for interest	$	37		$	37		$	37
	Cash payments (refunds) for income taxes (1)	$	555		$	322		$	(94	)
	-1	Amounts reported in 2013 have been adjusted to reflect an additional $30 million in cash paid for income taxes.

COMMITMENTS_AND_CONTINGENT_LIA

COMMITMENTS AND CONTINGENT LIABILITIES	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENT LIABILITIES
	Environmental Matters
	Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies.
	At December 31, 2014, the Corporation had accrued obligations of $132 million for probable environmental remediation and restoration costs, including $22 million for the remediation of Superfund sites. This is management's best estimate of the costs for remediation and restoration with respect to environmental matters for which the Corporation has accrued liabilities, although it is reasonably possible that the ultimate cost with respect to these particular matters could range up to approximately two and a half times that amount. Consequently, it is reasonably possible that environmental remediation and restoration costs in excess of amounts accrued could have a material impact on the Corporation's results of operations, financial condition and cash flows. It is the opinion of the Corporation's management, however, that the possibility is remote that costs in excess of the range disclosed will have a material impact on the Corporation's results of operations, financial condition and cash flows. Inherent uncertainties exist in these estimates primarily due to unknown environmental conditions, changing governmental regulations and legal standards regarding liability, and emerging remediation technologies for handling site remediation and restoration. At December 31, 2013, the Corporation had accrued obligations of $126 million for probable environmental remediation and restoration costs, including $23 million for the remediation of Superfund sites.
	The following table summarizes the activity in the Corporation's accrued obligations for environmental matters for the years ended December 31, 2014 and 2013:
	Accrued Liability for Environmental Matters
	In millions	2014			2013
	Balance at January 1	$	126		$	95
	Additional accruals	62			80
	Charges against reserve	(56		)	(49		)
	Balance at December 31	$	132		$	126
	The amounts charged to income on a pretax basis related to environmental remediation totaled $62 million in 2014, $80 million in 2013 and $31 million in 2012. Capital expenditures for environmental protection were $6 million in 2014, $2 million in 2013 and $7 million in 2012.
	Litigation
	The Corporation is involved in a number of legal proceedings and claims with both private and governmental parties. These cover a wide range of matters, including, but not limited to: product liability; trade regulation; governmental regulatory proceedings; health, safety and environmental matters; employment; patents; contracts; taxes; and commercial disputes.
	Asbestos-Related Matters
	Separately, the Corporation is and has been involved in a large number of asbestos-related suits filed primarily in state courts during the past four decades. These suits principally allege personal injury resulting from exposure to asbestos-containing products and frequently seek both actual and punitive damages. The alleged claims primarily relate to products that UCC sold in the past, alleged exposure to asbestos-containing products located on UCC's premises, and UCC's responsibility for asbestos suits filed against a former UCC subsidiary, Amchem Products, Inc. (“Amchem”). In many cases, plaintiffs are unable to demonstrate that they have suffered any compensable loss as a result of such exposure, or that injuries incurred in fact resulted from exposure to the Corporation's products.
	The Corporation expects more asbestos-related suits to be filed against UCC and Amchem in the future, and will aggressively defend or reasonably resolve, as appropriate, both pending and future claims.
	Estimating the Liability
	Based on a study completed by Analysis, Research & Planning Corporation (“ARPC”) in January 2003, the Corporation increased its December 31, 2002 asbestos-related liability for pending and future claims for the 15-year period ending in 2017 to $2.2 billion, excluding future defense and processing costs. Since then, the Corporation has compared current asbestos claim and resolution activity to the results of the most recent ARPC study at each balance sheet date to determine whether the accrual continues to be appropriate. In addition, the Corporation has requested ARPC to review the Corporation's historical asbestos claim and resolution activity each year since 2004 to determine the appropriateness of updating the most recent ARPC study.
	In October 2012, the Corporation requested ARPC to review its historical asbestos claim and resolution activity and determine the appropriateness of updating its December 2010 study. In response to that request, ARPC reviewed and analyzed data through September 30, 2012. In December 2012, based upon ARPC's December 2012 study and the Corporation's own review of the asbestos claim and resolution activity for 2012, it was determined that no adjustment to the accrual was required at December 31, 2012. The Corporation's asbestos-related liability for pending and future claims was $602 million at December 31, 2012.
	In October 2013, the Corporation requested ARPC to review its historical asbestos claim and resolution activity and determine the appropriateness of updating its December 2012 study. In response to that request, ARPC reviewed and analyzed data through September 30, 2013. In December 2013, ARPC stated that an update of its study would not provide a more likely estimate of future events than the estimate reflected in its December 2012 study and, therefore, the estimate in that study remained applicable. Based on the Corporation's own review of the asbestos claim and resolution activity and ARPC's response, the Corporation determined that no change to the accrual was required. The Corporation's asbestos-related liability for pending and future claims was $501 million at December 31, 2013.
	In October 2014, the Corporation requested ARPC to review its historical asbestos claim and resolution activity and determine the appropriateness of updating its December 2012 study. In response to that request, ARPC reviewed and analyzed data through September 30, 2014. The resulting study, completed by ARPC in December 2014, estimates that the undiscounted cost of disposing of pending and future claims against UCC and Amchem, excluding future defense and processing costs, to be between $540 million and $640 million through 2029 based on the data as of September 30, 2014. As in earlier studies, ARPC provided longer periods of time in its December 2014 study, but also reaffirmed that forecasts for shorter periods of time are more accurate than those for longer periods of time.
	In December 2014, based on ARPC's December 2014 study and the Corporation's own review of the asbestos claim and resolution activity, the Corporation determined that an adjustment to the accrual was required due to the increase in mesothelioma claim activity compared with what had been forecasted in the December 2012 study. Accordingly, the Corporation increased its asbestos-related liability for pending and future claims by $78 million and is included in "Asbestos-related charge" in the consolidated statement of operations. The Corporation's asbestos-related liability for pending and future claims was $513 million at December 31, 2014, and approximately 22 percent of the recorded liability related to pending claims and approximately 78 percent related to future claims. At December 31, 2013, approximately 19 percent of the recorded liability related to pending claims and approximately 81 percent related to future claims.
	Insurance Receivables
	At December 31, 2002, the Corporation increased the receivable for insurance recoveries related to its asbestos liability to $1.35 billion, substantially exhausting its asbestos product liability coverage. The insurance receivable related to the asbestos liability was determined by the Corporation after a thorough review of applicable insurance policies and the 1985 Wellington Agreement, to which the Corporation and many of its liability insurers are signatory parties, as well as other insurance settlements, with due consideration given to applicable deductibles, retentions and policy limits, and taking into account the solvency and historical payment experience of various insurance carriers. The Wellington Agreement and other agreements with insurers are designed to facilitate an orderly resolution and collection of the Corporation's insurance policies and to resolve issues that the insurance carriers may raise.
	In September 2003, the Corporation filed a comprehensive insurance coverage case, now proceeding in the Supreme Court of the State of New York, County of New York, seeking to confirm its rights to insurance for various asbestos claims and to facilitate an orderly and timely collection of insurance proceeds (the “Insurance Litigation”). The Insurance Litigation was filed against insurers that were not signatories to the Wellington Agreement and/or did not otherwise have agreements in place with the Corporation regarding their asbestos-related insurance coverage, in order to facilitate an orderly resolution and collection of such insurance policies and to resolve issues that the insurance carriers may raise. Since the filing of the case, the Corporation has reached settlements with most of the carriers involved in the Insurance Litigation and continues to pursue settlement with the remaining carrier.
	The Corporation's receivable for insurance recoveries related to its asbestos liability was $10 million at December 31, 2014 and $25 million at December 31, 2013. At December 31, 2014 and 2013, all of the receivable for insurance recoveries was related to insurers that are not signatories to the Wellington Agreement and/or do not otherwise have agreements in place regarding their asbestos-related insurance coverage.
	In addition to the receivable for insurance recoveries related to its asbestos liability, the Corporation had receivables for defense and resolution costs submitted to insurance carriers that have settlement agreements in place regarding their asbestos-related insurance coverage. The following table summarizes the Corporation's receivables related to its asbestos-related liability:
	Receivables for Asbestos-Related Costs at December 31	2014			2013
	In millions
	Receivables for defense and resolution costs - carriers with settlement agreements	$	69		$	66
	Receivables for insurance recoveries - carriers without settlement agreements	10			25
	Total	$	79		$	91
	After a review of its insurance policies, with due consideration given to applicable deductibles, retentions and policy limits, and after taking into account the solvency and historical payment experience of various insurance carriers; existing insurance settlements; and the advice of outside counsel with respect to the applicable insurance coverage law relating to the terms and conditions of its insurance policies, the Corporation continues to believe that its recorded receivable for insurance recoveries from all insurance carriers is probable of collection.
	The Corporation expenses defense costs as incurred. The pretax impact for defense and resolution costs, net of insurance, was $108 million in 2014, $107 million in 2013 and $100 million in 2012, and was reflected in “Cost of sales” in the consolidated statements of operations.
	Summary
	The amounts recorded by the Corporation for the asbestos-related liability and related insurance receivable described above were based upon current, known facts. However, future events, such as the number of new claims to be filed and/or received each year, the average cost of disposing of each such claim, coverage issues among insurers, and the continuing solvency of various insurance companies, as well as the numerous uncertainties surrounding asbestos litigation in the United States, could cause the actual costs and insurance recoveries for the Corporation to be higher or lower than those projected or those recorded.
	Because of the uncertainties described above, the Corporation's management cannot estimate the full range of the cost of resolving pending and future asbestos-related claims facing UCC and Amchem. The Corporation's management believes that it is reasonably possible that the cost of disposing of the Corporation's asbestos-related claims, including future defense costs, could have a material impact on the Corporation's results of operations and cash flows for a particular period and on the consolidated financial position of the Corporation.
	While it is not possible at this time to determine with certainty the ultimate outcome of any of the legal proceedings and claims referred to in this filing, management believes that adequate provisions have been made for probable losses with respect to pending claims and proceedings, and that, except for the asbestos-related matters described above, the ultimate outcome of all known and future claims, after provisions for insurance, will not have a material adverse impact on the results of operations, cash flows and financial position of the Corporation. Should any losses be sustained in connection with any of such legal proceedings and claims in excess of provisions provided and available insurance, they will be charged to income when determinable.
	Purchase Commitments
	At December 31, 2014, the Corporation had various outstanding commitments for take-or-pay agreements, with remaining terms extending from 1 to 13 years. Such commitments were not in excess of current market prices. The fixed and determinable portion of obligations under purchase commitments at December 31, 2014 is presented in the following table:
	Fixed and Determinable Portion of Take-or-Pay Obligations
	at December 31, 2014
	In millions
	2015	$	24
	2016	22
	2017	22
	2018	20
	2019	18
	2020 and beyond	47
	Total	$	153

NOTES_PAYABLE_AND_LONGTERM_DEB

NOTES PAYABLE AND LONG-TERM DEBT	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	NOTES PAYABLE AND LONG-TERM DEBT
	Notes Payable at December 31	2014			2013
	In millions
	Notes payable - related companies	$	43		$	34
	Year-end average interest rates	0.82		%	0.92		%
	Long-Term Debt at December 31	2014						2013
		Average						Average
	In millions	Rate			2014			Rate		2013
	Promissory notes and debentures:
	Debentures due 2023	7.875	%		$	175		7.875	%	$	175
	Debentures due 2025	6.79	%		12			6.79	%	12
	Debentures due 2025	7.5	%		150			7.5	%	150
	Debentures due 2096	7.75	%		135			7.75	%	135
	Capital lease obligations	—			11			—		—
	Unamortized debt discount	—			(1		)	—		(1		)
	Long-term debt due within one year	—			(1		)	—		—
	Total long-term debt				$	481				$	471
	Annual Installments on Long-Term Debt for Next Five Years
	In millions
	2015	$	1
	2016	$	1
	2017	$	1
	2018	$	1
	2019	$	1
	Debt Covenants and Default Provisions
	The Corporation's outstanding public debt has been issued under indentures which contain, among other provisions, covenants that the Corporation must comply with while the underlying notes are outstanding. Such covenants are typically based on the Corporation's size and financial position and include, subject to the exceptions and qualifications contained in the indentures, obligations not to (i) allow liens on principal U.S. manufacturing facilities, (ii) enter into sale and lease-back transactions with respect to principal U.S. manufacturing facilities, or (iii) merge into or consolidate with any other entity or sell or convey all or substantially all of its assets. Failure of the Corporation to comply with any of these covenants could, after the passage of any applicable grace period, result in a default under the applicable indenture which would allow the note holders to accelerate the due date of the outstanding principal and accrued interest on the subject notes.

PENSION_PLANS_AND_OTHER_POSTRE

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS	12 Months Ended
	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS
	Pension Plans
	The Corporation has a defined benefit pension plan that covers substantially all employees in the United States. Benefits are based on length of service and the employee's three highest consecutive years of compensation. Employees hired on or after January 1, 2008 earn benefits that are based on a set percentage of annual pay, plus interest. The Corporation also has a non-qualified supplemental pension plan.
	The Corporation's funding policy is to contribute to the plan when pension laws or economics either require or encourage funding. In 2014, UCC contributed $2 million to its pension plans including contributions to fund benefits payments for its non-qualified supplemental plan. UCC expects to contribute approximately $2 million to its pension plans in 2015.
	The weighted-average assumptions used to determine pension plan obligations and net periodic benefit costs are provided below:
	Pension Plan Assumptions	Benefit Obligations							Net Periodic Costs
		at December 31							for the Year
		2014		2013		2012			2014		2013		2012
	Discount rate	3.9	%	4.75	%	3.85	%		4.75	%	3.85	%	4.85	%
	Rate of increase in future compensation levels	4.5	%	4.5	%	4.5	%		4.5	%	4.5	%	4.5	%
	Long-term rate of return on assets	—		—		—			6.8	%	6.9	%	6.9	%
	The Corporation determines the expected long-term rate of return on plan assets by performing a detailed analysis of key economic and market factors driving historical returns for each asset class and formulating a projected return based on factors in the current environment. Factors considered include, but are not limited to, inflation, real economic growth, interest rate yield, interest rate spreads, and other valuation measures and market metrics. The expected long-term rate of return for each asset class is then weighted based on the strategic asset allocation approved by the governing body for each plan. The Corporation's historical experience with the pension fund asset performance is also considered. The discount rates utilized to measure the pension and other postretirement obligations of the U.S. qualified plans are based on the yield on high-quality fixed income investments at the measurement date. Future expected actuarially determined cash flows of the plans are matched against the Towers Watson RATE:Link yield curve (based on 60th and 90th percentile bond yields) to arrive at a single discount rate by plan.
	On October 27, 2014, the Society of Actuaries ("SOA") published updated mortality tables and mortality improvement scales (generational mortality tables), which reflect increased life expectancy. Based on an evaluation of the mortality experience of the Corporation's U.S. pension plans and the SOA's tables, the Corporation adopted updated generational mortality tables for purposes of measuring U.S. pension and other postretirement obligations at year-end. The mortality assumption change increased the pension and other postretirement benefit obligations by $139 million at December 31, 2014.
	The accumulated benefit obligation for all defined benefit pension plans was $4.3 billion at December 31, 2014 and $4.0 billion at December 31, 2013.
	Pension Plans with Accumulated Benefit Obligations
	in Excess of Plan Assets at December 31
	In millions	2014			2013
	Projected benefit obligation	$	4,345		$	3,995
	Accumulated benefit obligation	$	4,302		$	3,963
	Fair value of plan assets	$	3,543		$	3,586
	Other Postretirement Benefits
	The Corporation provides certain health care and life insurance benefits to retired U.S. employees. The plan provides health care benefits, including hospital, physicians' services, drug and major medical expense coverage, and life insurance benefits. The Corporation and the retiree share the cost of these benefits, with the Corporation portion increasing as the retiree has increased years of credited service, although there is a cap on the Corporation portion. The Corporation has the ability to change these benefits at any time. Employees hired after January 1, 2008 are not covered under this plan.
	During the fourth quarter of 2013, the Corporation started implementing an Employer Group Waiver Plan (“EGWP”) for its Medicare-eligible, retiree medical plan participants, which became effective on January 1, 2014. As a result, the Medicare Part D Retiree Drug Subsidy program (“RDS”) was eliminated on January 1, 2014. The EGWP does not significantly alter the benefits provided to retiree medical plan participants. The federal subsidies to be earned under the EGWP are expected to exceed those earned under the RDS and will be partially offset by increased costs related to the administration of the EGWP. The formation of the EGWP and the resulting change in assumption generated an actuarial gain of $55 million at December 31, 2013, included in "Accumulated other comprehensive loss" in the consolidated balance sheets. The Corporation also recognized a reduction in the postretirement benefit obligation of $55 million at December 31, 2013. The net periodic benefit cost decreased by $10 million in 2014 due to the EGWP.
	The Corporation funds most of the cost of these health care and life insurance benefits as incurred. In 2014, UCC did not make any contributions to its other postretirement benefit plan trust. Likewise, UCC does not expect to contribute assets to its other postretirement benefit plan trust in 2015.
	The weighted-average assumptions used to determine other postretirement benefit obligations and net periodic benefit costs for the plan are provided in the following table:
	Plan Assumptions for Other Postretirement Benefits	Benefit Obligations							Net Periodic Costs
		at December 31							for the Year
		2014		2013		2012			2014		2013		2012
	Discount rate	3.75	%	4.4	%	3.65	%		4.4	%	3.65	%	4.6	%
	Initial health care cost trend rate	7.05	%	7.46	%	7.85	%		7.46	%	7.85	%	8.3	%
	Ultimate health care cost trend rate	5	%	5	%	5	%		5	%	5	%	5	%
	Year ultimate trend rate to be reached	2020		2020		2019			2020		2020		2019
	Increasing the assumed medical cost trend rate by one percentage point in each year would increase the accumulated postretirement benefit obligation at December 31, 2014 by $6 million and the net periodic postretirement benefit cost for the year by an immaterial amount. Decreasing the assumed medical cost trend rate by one percentage point in each year would decrease the accumulated postretirement benefit obligation at December 31, 2014 by $16 million and the net periodic postretirement benefit cost for the year by an immaterial amount.
	Net Periodic Benefit Cost for all Plans
		Defined Benefit Pension Plans										Other Postretirement Benefits
	In millions	2014			2013			2012				2014			2013			2012
	Service cost	$	30		$	31		$	28			$	1		$	2		$	2
	Interest cost	183			165			189				13			14			17
	Expected return on plan assets	(232		)	(232		)	(235		)		—			—			—
	Amortization of prior service cost (credit)	6			7			7				—			(1		)	(2		)
	Amortization of net loss	66			88			60				(10		)	—			—
	Net periodic benefit cost	$	53		$	59		$	49			$	4		$	15		$	17
	Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Income) Loss
	for all Plans
		Defined Benefit Pension Plans										Other Postretirement Benefits
	In millions	2014			2013			2012				2014			2013			2012
	Net (gain) loss	$	450		$	(283	)	$	375			$	(12	)	$	(102	)	$	16
	Prior service credit arising during period	(38		)	—			—				—			—			—
	Amortization of prior service (cost) credit	(6		)	(7		)	(7		)		—			1			2
	Amortization of net gain (loss)	(66		)	(88		)	(60		)		10			—			—
	Total recognized in other comprehensive (income) loss	$	340		$	(378	)	$	308			$	(2	)	$	(101	)	$	18
	Total recognized in net periodic benefit cost and other comprehensive (income) loss	$	393		$	(319	)	$	357			$	2		$	(86	)	$	35
	Change in Projected Benefit Obligations, Plan Assets and Funded Status for all Plans
	In millions	Defined Benefit							Other Postretirement Benefits
		Pension Plans
	Change in projected benefit obligation:	2014			2013				2014			2013
	Benefit obligation at beginning of year	$	3,995		$	4,433			$	302		$	414
	Service cost	30			31				1			2
	Interest cost	183			165				13			14
	Plan amendments	(38		)	—				—			—
	Actuarial changes in assumptions and experience	531			(342		)		(13		)	(102		)
	Benefits paid	(340		)	(285		)		(33		)	(26		)
	Other	(16		)	(7		)		—			—
	Benefit obligation at end of year	$	4,345		$	3,995			$	270		$	302
Change in plan assets:
Fair value of plan assets at beginning of year	$	3,586		$	3,548			$	—		$	—
Actual return on plan assets	312			174				—			—
Employer contributions	2			158				—			—
Asset transfer	(17		)	(9		)		—			—
Benefits paid	(340		)	(285		)		—			—
Fair value of plan assets at end of year	$	3,543		$	3,586			$	—		$	—
Funded status at end of year	$	(802	)	$	(409	)		$	(270	)	$	(302	)
Net amounts recognized in the consolidated balance sheets at December 31:
Current liabilities	$	(1	)	$	(1	)		$	(27	)	$	(33	)
Noncurrent liabilities	(801		)	(408		)		(243		)	(269		)
Net amounts recognized in the consolidated balance sheets	$	(802	)	$	(409	)		$	(270	)	$	(302	)
Pretax amounts recognized in AOCL at December 31:
Net loss (gain)	$	1,955		$	1,570			$	(109	)	$	(107	)
Prior service cost (credit)	(19		)	26				(1		)	(1		)
Pretax balance in AOCL at end of year	$	1,936		$	1,596			$	(110	)	$	(108	)
In 2015, an estimated net loss of $87 million and prior service credit of $1 million for the defined benefit pension plans will be amortized from AOCL to net periodic benefit cost. In 2015, an estimated net gain of $11 million for the other postretirement benefit plan will be amortized from AOCL to net periodic benefit cost.
Estimated Future Benefit Payments
The estimated future benefit payments, reflecting expected future service, as appropriate, are presented in the following table:
Estimated Future Benefit Payments at December 31, 2014
In millions	Defined Benefit Pension Plans			Other Postretirement Benefits
2015	$	280		$	28
2016	278			23
2017	278			21
2018	277			20
2019	277			19
2020 through 2024	1,361			88
Total	$	2,751		$	199
Plan Assets
Plan assets consist primarily of equity and fixed income securities of U.S. and foreign issuers, and include alternative investments such as real estate, private equity and other absolute return strategies. At December 31, 2014, plan assets totaled $3.5 billion and $3.6 billion at December 31, 2013 which included no Dow common stock.
Investment Strategy and Risk Management for Plan Assets
The Corporation's investment strategy for the plan assets is to manage the assets in relation to the liability in order to pay retirement benefits to plan participants over the life of the plans. This is accomplished by identifying and managing the exposure to various markets risks, diversifying investments across various asset classes and earning an acceptable long-term rate of return consistent with an acceptable amount of risk, while considering the liquidity needs of the plan.
The plan is permitted to use derivative instruments for investment purposes, as well as for hedging the underlying asset and liability exposures and rebalancing the asset allocation. The plan uses value at risk, stress testing, scenario analysis and Monte Carlo simulation to monitor and manage both asset risk in the portfolios and surplus risk.
Equity securities primarily include investments in large- and small-cap companies located in both developed and emerging markets around the world. Fixed income securities are primarily U.S. dollar based and include U.S. treasuries and investment grade corporate bonds of companies diversified across industries. Alternative investments primarily include investments in real estate, private equity limited partnerships and absolute return strategies. Other significant investment types include various insurance contracts; and interest rate, equity and foreign exchange derivative investments and hedges.
Strategic Target Allocation of Plan Assets
Asset Category	Target Allocation
Equity securities	23	%
Fixed income securities	45	%
Alternative investments	27	%
Other	5	%
Total	100	%
Concentration of Risk
The Corporation mitigates the credit risk of investments by establishing guidelines with the investment managers that limit investment in any single issue or issuer to an amount that is not material to the portfolio being managed. These guidelines are monitored for compliance both by the Corporation and the external managers. Credit risk for hedging activity is mitigated by utilizing multiple counterparties, collateral support agreements, and centralized clearing where appropriate.
The Northern Trust Collective Government Short Term Investment money market fund is utilized as the sweep vehicle for the pension plan, which from time to time can represent a significant investment. Approximately 40 percent of the liability of the pension plan is covered by a participating group annuity issued by Prudential Insurance Company.
The following tables summarize the bases used to measure the Corporation's pension plan assets at fair value for the years ended December 31, 2014 and 2013:
Basis of Fair Value Measurements at	Quoted Prices in Active Markets for Identical Items			Significant Other Observable Inputs			Significant Unobservable Inputs			Total
31-Dec-14	(Level 1)			(Level 2)			(Level 3)
In millions
Cash and cash equivalents	$	3		$	131		$	—		$	134
Equity securities:
U.S. equity	$	360		$	78		$	1		$	439
Non-U.S. equity - developed countries	166			160			—			326
Emerging markets	40			62			3			105
Equity derivatives	—			(1		)	—			(1		)
Total equity securities	$	566		$	299		$	4		$	869
Fixed income securities:
U.S. government and municipalities	$	—		$	673		$	—		$	673
U.S. agency mortgage backed securities	—			66			—			66
Corporates - investment grade	—			743			—			743
Non-U.S. governments - developed countries	—			6			—			6
Non-U.S. corporates - developed countries	—			160			—			160
Emerging markets debt	—			14			—			14
Other asset-backed securities	—			11			1			12
Other fixed income funds	—			—			32			32
High yield bonds	—			2			—			2
Total fixed income securities	$	—		$	1,675		$	33		$	1,708
Alternative investments:
Real estate	$	—		$	—		$	288		$	288
Private equity	—			—			233			233
Absolute return	—			126			166			292
Total alternative investments	$	—		$	126		$	687		$	813
Total other securities	$	—		$	(3	)	$	22		$	19
Total pension plan assets at fair value	$	569		$	2,228		$	746		$	3,543
Basis of Fair Value Measurements at	Quoted Prices in Active Markets for Identical Items			Significant Other Observable Inputs			Significant Unobservable Inputs			Total
31-Dec-13	(Level 1)			(Level 2)			(Level 3)
In millions
Cash and cash equivalents	$	3		$	304		$	—		$	307
Equity securities:
U.S. equity	$	388		$	143		$	—		$	531
Non-U.S. equity - developed countries	181			85			—			266
Emerging markets	119			67			2			188
Total equity securities	$	688		$	295		$	2		$	985
Fixed income securities:
U.S. government and municipalities	$	—		$	606		$	—		$	606
U.S. agency mortgage backed securities	—			63			—			63
Corporates - investment grade	—			635			—			635
Non-U.S. governments - developed countries	—			2			—			2
Non-U.S. corporates - developed countries	—			159			—			159
Emerging markets debt	—			22			—			22
Other asset-backed securities	—			9			2			11
Other fixed income funds	—			—			12			12
High yield bonds	—			3			—			3
Fixed income derivatives	—			(3		)	—			(3		)
Total fixed income securities	$	—		$	1,496		$	14		$	1,510
Alternative investments:
Real estate	$	—		$	—		$	292		$	292
Private equity	—			—			228			228
Absolute return	—			127			103			230
Total alternative investments	$	—		$	127		$	623		$	750
Total other securities	$	—		$	12		$	22		$	34
Total pension plan assets at fair value	$	691		$	2,234		$	661		$	3,586
For assets classified as Level 1 measurements (measured using quoted prices in active markets), the total fair value is either the price of the most recent trade at the time of the market close or the official close price, as defined by the exchange on which the asset is most actively traded on the last trading day of the period, multiplied by the number of units held without consideration of transaction costs.
For assets classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance and quality checks. For derivative assets and liabilities, standard industry models are used to calculate the fair value of the various financial instruments based on significant observable market inputs such as foreign exchange rates, commodity prices, swap rates, interest rates, and implied volatilities obtained from various market sources.
Some plan assets are held in funds where a net asset value is calculated based on the fair value of the underlying assets and the number of shares owned. The classification of the fund (Level 2 or 3 measurements) is determined based on the lowest level classification of significant holdings within the fund. For all other assets for which observable inputs are used, fair value is derived through the use of fair value models, such as a discounted cash flow model or other standard pricing models.
For assets classified as Level 3 measurements, total fair value is based on significant unobservable inputs including assumptions where there is little, if any, market activity for the investment. Investment managers or fund managers provide valuations of the investment on a monthly or quarterly basis. These valuations are reviewed for reasonableness based on applicable sector, benchmark and company performance. Adjustments to valuations are made where appropriate. Where available, audited financial statements are obtained and reviewed for the investments as support for the manager's investment valuation.
The following table summarizes the changes in fair value of Level 3 pension plan assets for the years ended December 31, 2014 and 2013:
Fair Value Measurement of Level 3	Equity Securities			Fixed Income Securities			Alternative Investments			Other Investments			Total
Pension Plan Assets
In millions
Balance at January 1, 2013	$	3		$	17		$	552		$	22		$	594
Actual return on plan assets:
Relating to assets held at Dec 31, 2013	(2		)	—			22			—			20
Relating to assets sold during 2013	—			—			40			—			40
Purchases, sales and settlements	1			(3		)	9			—			7
Balance at December 31, 2013	$	2		$	14		$	623		$	22		$	661
Actual return on plan assets:
Relating to assets held at Dec 31, 2014	(2		)	—			(22		)	—			(24		)
Relating to assets sold during 2014	—			—			35			—			35
Purchases, sales and settlements	4			20			53			—			77
Transfers out of Level 3, net	—			(1		)	—			—			(1		)
Foreign currency impact	—			—			(2		)	—			(2		)
Balance at December 31, 2014	$	4		$	33		$	687		$	22		$	746

LEASED_PROPERTY

LEASED PROPERTY	12 Months Ended
	Dec. 31, 2014
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]	LEASED PROPERTY
	The Corporation has leases primarily for facilities and distribution equipment. The future minimum rental payments under leases with remaining noncancelable terms in excess of one year are as follows:
	Minimum Lease Commitments
	at December 31, 2014
	In millions
	2015	$	7
	2016	5
	2017	4
	2018	3
	2019	2
	2020 and thereafter	8
	Total	$	29
	Rental expenses under leases were $27 million in 2014, $31 million in 2013 and $35 million in 2012.

RELATED_PARTY_TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS
	The Corporation sells its products to Dow to simplify the customer interface process. Products are sold to and purchased from Dow at market-based prices in accordance with the terms of Dow’s intercompany pricing policies. After each quarter, the Corporation and Dow analyze the pricing used for the sales in that quarter and reach agreement on any necessary adjustments, at which point the prices are final. The Corporation also procures certain commodities and raw materials through a Dow subsidiary and pays a commission to that Dow subsidiary based on the volume and type of commodities and raw materials purchased. The commission expense is included in “Sundry income (expense) - net” in the consolidated statements of operations. Purchases from that Dow subsidiary were approximately $2.9 billion in 2014, $2.9 billion in 2013 and $3.1 billion in 2012.
	The Corporation has a master services agreement with Dow whereby Dow provides services including, but not limited to, accounting, legal, treasury (investments, cash management, risk management, insurance), procurement, human resources, environmental, health and safety, and business management for UCC. Under the master services agreement with Dow, general administrative and overhead type services that Dow routinely allocates to various businesses are charged to UCC. The master services agreement cost allocation basis is headcount and includes a 10 percent service fee. This agreement resulted in expense of approximately $26 million in 2014, $25 million in 2013 and $32 million in 2012 for general administrative and overhead type services and the 10 percent service fee, included in “Sundry income (expense) - net” in the consolidated statements of operations. The decrease in general administrative and overhead type services from 2012, including the service fee, was due to a simplification of the cost structure as well as cost reduction initiatives by Dow. The remaining activity-based costs were approximately $53 million in 2014, $46 million in 2013 and $51 million in 2012 and were included in “Cost of sales” in the consolidated statements of operations.
	Management believes the method used for determining expenses charged by Dow is reasonable. Dow provides these services by leveraging its centralized functional service centers to provide services at a cost that management believes provides an advantage to the Corporation.
	The monitoring and execution of risk management policies related to interest rate and foreign currency risks, which are based on Dow’s risk management philosophy, are provided as a service to UCC.
	As part of Dow’s cash management process, UCC is a party to revolving loans with Dow that have interest rates based on LIBOR (London Interbank Offered Rate) with varying maturities. At December 31, 2014, the Corporation had a note receivable of $1.2 billion ($2.4 billion at December 31, 2013) from Dow under a revolving loan agreement. The Corporation may draw from this note receivable in support of its daily working capital requirements and, as such, the net effect of cash inflows and outflows under this revolving loan agreement is presented in the consolidated statements of cash flows as an operating activity.
	The Corporation also has a separate revolving credit agreement with Dow that allows the Corporation to borrow or obtain credit enhancements up to an aggregate of $1 billion that matures on December 30, 2015. Dow may demand repayment with a 30-day written notice to the Corporation, subject to certain restrictions. A related collateral agreement provides for the replacement of certain existing pledged assets, primarily equity interests in various subsidiaries and joint ventures, with cash collateral. At December 31, 2014, $875 million ($843 million at December 31, 2013) was available under the revolving credit agreement. The cash collateral is reported as “Noncurrent receivables from related companies” in the consolidated balance sheets.
	Related company accounts payable and accounts receivable between UCC and Dow are settled on a regular basis. As a result of the phased implementation of the Corporation's new ERP system, as well as the implementation of an in-house banking system in the third quarter of 2014, intercompany balances are now settled on a monthly basis instead of throughout the month. As a result of this change, "Accounts receivable - Related companies" and "Accounts payable - Related companies" in the consolidated balance sheets reflect an increase when compared with previous years.
	In October 2014, UCC authorized a distribution to Dow of its shares of common stock in GWN Holdings, Inc. ("GWN"). Prior to the stock distribution, GWN was owned 6.3 percent by UCC and 93.7 percent by Dow and its other wholly-owned subsidiaries. Prior to this distribution, UCC's investment in GWN was $10 million, accounted for as a cost method investment, and included in "Investments in related companies" in the consolidated balance sheets. No gain or loss was recorded on the stock distribution.
	The Corporation recorded an impairment charge of $25 million in the fourth quarter of 2013 for the full value of the cost method investment in Dow Quimica Argentina S.A., a related company. The impairment charge, triggered by ongoing losses in the entity, is included in "Sundry income (expense) - net" in the consolidated statements of operations.
	In the fourth quarter of 2012, UCC recorded an impairment charge of $131 million related to its investment in Modeland International Holdings Inc. ("Modeland"), a related company, representing the difference between the investment's cost and its fair value. The impairment was triggered by an ownership reorganization of Modeland's subsidiaries. The amount of the impairment charge was calculated based on an appraisal of the fair value of Modeland's assets and liabilities. The fair value was determined through the use of both income and market valuation approaches. The impairment charge is included in "Sundry income (expense) -net" in the consolidated statements of operations. Subsequent to recording the impairment charge, the Corporation also declared and paid a stock dividend to Dow for its ownership interest in Modeland totaling $9 million.
	On a quarterly basis, the Corporation's Board of Directors reviews and approves a dividend distribution to its parent company and sole shareholder, Dow. The Board takes into consideration the level of earnings and cash flows, among other factors, in determining the amount of the dividend distribution. During 2014, the Corporation declared and paid dividends totaling $1.3 billion to Dow. In September 2013, UCC declared a stock dividend to Dow of its 100 percent ownership interest in Union Carbide Subsidiary C, Inc., which included UCC's full ownership interest in Univation. This stock dividend was effective on September 29, 2013 and totaled $70 million. During 2013, the Corporation declared and paid dividends totaling $661 million to Dow, which included cash dividends to Dow totaling $591 million.
	The Corporation received cash dividends of $12 million from its related company investments in 2014 ($16 million in 2013 and $25 million in 2012). These dividends were included in "Sundry income (expense) - net" in the consolidated statements of operations.
	In the third quarter of 2014, as part of a sale-leaseback transaction entered into by Dow for a significant portion of Dow's North America railcar fleet, UCC sold all of the railcars owned by UCC to Dow at fair value for $145 million in cash. The sale of the railcars resulted in a pretax gain of $66 million, and is included in "Sundry income (expense) - net" in the consolidated statements of operations.
	In accordance with the Tax Sharing Agreement between the Corporation and Dow, the Corporation makes payments to Dow to cover the Corporation's estimated federal tax liability; payments were $579 million in 2014, $163 million in 2013 and zero in 2012.

INCOME_TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAXES
	Domestic and Foreign Components of Income (Loss) Before Income Taxes
	In millions	2014			2013			2012
	Domestic (1)	$	896		$	1,077		$	(95	)
	Foreign	(5		)	(10		)	(2		)
	Total	$	891		$	1,067		$	(97	)
	-1	In 2013, the domestic component of "Income Before Income Taxes" included a gain of $368 million for the sale of Dow's Polypropylene Licensing and Catalysts business.
	Provision for Income Taxes
					2014									2013									2012
	In millions	Current			Deferred			Total				Current		Deferred			Total			Current			Deferred			Total
	Federal (1)	$	(41	)	$	311		$	270			$	337	$	18		$	355		$	10		$	15		$	25
	State and local	(5		)	38			33				5		(47		)	(42		)	(5		)	(3		)	(8		)
	Foreign	1			—			1				6		—			6			—			—			—
	Total	$	(45	)	$	349		$	304			$	348	$	(29	)	$	319		$	5		$	12		$	17
	-1	Reflects the 2014 impact of accelerated deductions.
	Reconciliation to U.S. Statutory Rate
	In millions	2014			2013			2012
	Taxes at U.S. statutory rate	$	312		$	374		$	(34	)
	Equity earnings effect	(4		)	(1		)	2
	U.S. manufacturing deductions	(26		)	(7		)	—
	Benefit of dividend income from investments in related companies	—			(6		)	(9		)
	Audit settlement and court case impact	—			20			—
	Unrecognized tax benefits	—			(30		)	9
	Impairment of investment in related company	—			1			46
	Federal tax accrual adjustments	(14		)	(5		)	(8		)
	State and local tax impact	42			(38		)	12
	Other - net	(6		)	11			(1		)
	Total tax provision	$	304		$	319		$	17
	Effective tax rate	34.1		%	29.9		%	(17.5		)%
	The tax rate for 2014 was unfavorably impacted by changes in valuation allowances on state income tax attributes, partially offset by favorable manufacturing deductions in the United States. UCC's reported effective tax rate for 2014 was 34.1 percent.
	The tax rate for 2013 was favorably impacted by changes in valuation allowances in the United States on state income tax attributes, audit settlements and remeasurement of tax positions. The 2013 tax rate was unfavorably impacted by an unfavorable court ruling in the first quarter of 2013. UCC's reported effective tax rate for 2013 was 29.9 percent.
	The tax rate for 2012 was unfavorably impacted primarily by the minimal tax relief related to the impairment of the investment in related company and the inability to utilize state tax credits. UCC's reported effective tax rate for 2012 was negative 17.5 percent.
	Deferred Tax Balances at December 31	2014							2013
	In millions	Deferred Tax Assets			Deferred Tax Liabilities				Deferred Tax Assets			Deferred Tax Liabilities
	Property	$	—		$	197			$	—		$	235
	Tax loss and credit carryforwards	82			—				95			—
	Postretirement benefit obligations	818			420				706			440
	Other accruals and reserves (1)	263			3				656			4
	Inventory	53			—				30			—
	Long-term debt	—			—				—			1
	Investments	—			1				7			—
	Other - net	2			—				2			1
	Subtotal	$	1,218		$	621			$	1,496		$	681
	Valuation allowances	(53		)	—				(50		)	—
	Total	$	1,165		$	621			$	1,446		$	681
	-1	The reduction in 2014 reflects the impact of accelerated deductions.
	Gross operating loss carryforwards, primarily related to state operating losses, amounted to $1,035 million at December 31, 2014, compared with $1,188 million at the end of 2013. At December 31, 2014, $530 million of the operating loss carryforwards were subject to expiration in the years 2015 through 2019. The remaining balances expire in years beyond 2019 or have an indefinite carryforward period. Tax credit carryforwards amounted to $5 million at December 31, 2014 and $7 million at December 31, 2013, which all expire in years beyond 2019 or have an indefinite carryforward period.
	Undistributed earnings of foreign subsidiaries and related companies that are deemed to be permanently invested amounted to $50 million at December 31, 2014, $48 million at December 31, 2013 and $53 million at December 31, 2012. It is not practicable to calculate the unrecognized deferred tax liability on those earnings.
	The Corporation had valuation allowances that were primarily related to the realization of recorded tax benefits on state tax loss carryforwards from operations in the United States of $53 million at December 31, 2014 and $50 million at December 31, 2013.
	Total Gross Unrecognized Tax Benefits
	In millions	2014			2013			2012
	Balance at January 1	$	4		$	166		$	161
	Increases related to positions taken on items from prior years	—			1			—
	Decreases related to positions taken on items from prior years	—			(7		)	—
	Increases related to positions taken in current year	—			—			8
	Settlement of uncertain tax positions with tax authorities	—			(154		)	—
	Decreases due to expiration of statutes of limitations	(3		)	(2		)	(3		)
	Balance at December 31	$	1		$	4		$	166
	At December 31, 2014, the total amount of unrecognized tax benefits was $1 million ($4 million at December 31, 2013), of which $1 million ($3 million at December 31, 2013) would impact the effective tax rate, if recognized.
	Interest and penalties associated with unrecognized tax benefits are recognized as components of “Provision for income taxes” in the consolidated statements of operations and was a benefit of $6 million in 2014, $15 million in 2013 and $1 million in 2012. The Corporation's accrual for interest and penalties was zero at December 31, 2014 and a payable of $1 million at December 31, 2013.
	During 2013, the U.S. Supreme Court denied certiorari in UCC's research tax credit case. Through the denial of certiorari, the U.S. Court of Appeals decision denying UCC's tax credit claim for supplies used in process-related research and development at its manufacturing facilities became final. As a result of this ruling, UCC reversed the uncertain tax positions related to this matter, which resulted in a decrease to "Other noncurrent obligations" and an increase to "Income taxes payable" in the consolidated balance sheets in accordance with the Tax Sharing Agreement between the Corporation and Dow. In addition, UCC recognized a tax charge of $41 million in the first quarter of 2013 included in "Provision for income taxes" in the consolidated statements of operations. An audit settlement in the second quarter of 2013 resulted in a tax benefit of $22 million, included in "Provision for income taxes" and various balance sheet reclassifications from noncurrent to current accruals and receivables.
	Tax years that remain subject to examination for the Corporation's major tax jurisdictions are shown below:
	Tax Years Subject to Examination by Major Tax Jurisdiction at December 31
	Jurisdiction	Earliest Open Year
2014		2013
United States:
Federal income tax	2004	2004
State and local income tax	2004	2004
The Corporation is included in Dow's consolidated federal income tax group and consolidated tax return. Current and deferred tax expenses are calculated for the Corporation as a stand-alone group and are allocated to the group from the consolidated totals. UCC is currently under examination in a number of tax jurisdictions, including the U.S. federal and various state jurisdictions. It is reasonably possible that these examinations may be resolved within twelve months. As a result, it is reasonably possible that the total gross unrecognized tax benefits of the Corporation at December 31, 2014, will be reduced by approximately $1 million from resolution of these examinations.
The reserve for non-income tax contingencies related to issues in the United States was zero at December 31, 2014 and zero at December 31, 2013. This is management's best estimate of the potential liability for non-income tax contingencies. Inherent uncertainties exist in estimates of tax contingencies due to changes in tax law, both legislated and concluded through the various jurisdictions' tax court systems. It is the opinion of the Corporation's management that the possibility is remote that costs in excess of those accrued will have a material impact on the Corporation's consolidated financial statements.

ACCUMULATED_OTHER_COMPREHENSIV

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income [Abstract]
Comprehensive Income (Loss) Note [Text Block]	ACCUMULATED OTHER COMPREHENSIVE LOSS
	The following table provides an analysis of the changes in accumulated other comprehensive loss for the years ended December 31, 2014, 2013 and 2012:
	Accumulated Other Comprehensive Loss
	In millions	2014			2013			2012
	Cumulative Translation Adjustments at beginning of year	$	(78	)	$	(56	)	$	(52	)
	Translation adjustments	(1		)	(1		)	(4		)
	Reclassification to earnings - Sundry income (expense) - net (1)	16			(21		)	—
	Balance at end of period	$	(63	)	$	(78	)	$	(56	)
	Pension and Other Postretirement Benefit Plans at beginning of year	$	(967	)	$	(1,289	)	$	(1,080	)
	Net gain (loss) during period (net of tax of $(165), $122, $(141)) (2) (3)	(273		)	263			(250		)
	Prior service credit arising during the period (net of tax of $13, $-, $-)	25			—			—
	Amortization of prior service cost included in net periodic pension costs (net of tax of $2, $2, $2) (2) (3)	4			4			3
	Amortization of net loss included in net periodic pension costs (net of tax of $25, $33, $22) (2) (3)	31			55			38
	Balance at end of period	$	(1,180	)	$	(967	)	$	(1,289	)
	Total accumulated other comprehensive loss	$	(1,243	)	$	(1,045	)	$	(1,345	)
	-1	In 2014, reclassification resulted from the divestiture or liquidation of subsidiaries. In 2013, reclassification resulted from the divestiture of a nonconsolidated affiliate.
	(2)    See Note 15 for additional information.
	(3)    Tax amounts are included in "Provision for income taxes" in the consolidated statements of operations.

BUSINESS_AND_GEOGRAPHIC_AREAS

BUSINESS AND GEOGRAPHIC AREAS	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Business and Geographic Areas [Text Block]	BUSINESS AND GEOGRAPHIC AREAS
	Dow conducts its worldwide operations through global businesses, and the Corporation's business activities comprise components of Dow's global businesses rather than stand-alone operations. The Corporation sells its products to Dow in order to simplify the customer interface process at market-based prices in accordance with Dow's intercompany pricing policy. Because there are no separable reportable business segments for the Corporation and no detailed business information is provided to a chief operating decision maker regarding the Corporation's stand-alone operations, the Corporation's results are reported as a single operating segment.
	Sales are attributed to geographic areas based on customer location; long-lived assets are attributed to geographic areas based on asset location. Sales to external customers and long-lived assets by geographic area were as follows:
	Geographic Area Information	United States		Asia Pacific		Rest of World		Total
	In millions
	2014
	Sales to external customers (1)	$	62	$	1	$	19	$	82
	Long-lived assets	$	1,113	$	6	$	33	$	1,152
	2013
	Sales to external customers (1)	$	100	$	43	$	18	$	161
	Long-lived assets	$	1,197	$	6	$	36	$	1,239
	2012
	Sales to external customers (1)	$	98	$	64	$	15	$	177
	Long-lived assets	$	1,287	$	8	$	39	$	1,334
	-1	Of the total sales to external customers, China was less than 1 percent in 2014, approximately 21 percent in 2013 and 21 percent in 2012; and Malaysia was less than 1 percent in 2014, approximately 4 percent in 2013 and 10 percent in 2012, both of which are included in Asia Pacific.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policy)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation and Basis of Presentation
	Except as otherwise indicated by the context, the terms “Corporation” and “UCC” as used herein mean Union Carbide Corporation and its consolidated subsidiaries. The accompanying consolidated financial statements of the Corporation were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and include the assets, liabilities, revenues and expenses of all majority-owned subsidiaries over which the Corporation exercises control and, when applicable, entities for which the Corporation has a controlling financial interest. Intercompany transactions and balances are eliminated in consolidation. Investments in nonconsolidated affiliates (20-50 percent owned companies, joint ventures and partnerships) are accounted for using the equity method.
	The Corporation is a wholly owned subsidiary of The Dow Chemical Company (“Dow”). In accordance with the accounting requirements for wholly owned subsidiaries, the presentation of earnings per share is not required and therefore is not provided.
	Dow conducts its worldwide operations through global businesses, and the Corporation's business activities comprise components of Dow's global operations rather than stand-alone operations. The Corporation sells substantially all of its products to Dow at market-based prices, in accordance with Dow's long-standing intercompany pricing policy, in order to simplify the customer interface process. Because there are no separable reportable business segments for UCC and no detailed business information is provided to a chief operating decision maker regarding the Corporation's stand-alone operations, the Corporation's results are reported as a single operating segment.
Related Companies, Policy [Policy Text Block]	Related Companies
	Transactions with the Corporation's parent company, Dow, or other Dow subsidiaries have been reflected as related company transactions in the consolidated financial statements.
Use of Estimates, Policy [Policy Text Block]	Use of Estimates in Financial Statement Preparation
	The preparation of financial statements in accordance with U.S. GAAP requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. The Corporation's consolidated financial statements include amounts that are based on management's best estimates and judgments. Actual results could differ from those estimates.
Environmental Costs, Policy [Policy Text Block]	Environmental Matters
	Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated based on current law and existing technologies. These accruals are adjusted periodically as assessment and remediation efforts progress or as additional technical or legal information becomes available. Accruals for environmental liabilities are included in the consolidated balance sheets in “Accrued and other current liabilities” and “Other noncurrent obligations” at undiscounted amounts. Accruals for related insurance or other third-party recoveries for environmental liabilities are recorded when it is probable that a recovery will be realized and are included in the consolidated balance sheets as “Accounts receivable - Other.”
	Environmental costs are capitalized if the costs extend the life of the property, increase its capacity, and/or mitigate or prevent contamination from future operations. Environmental costs are also capitalized in recognition of legal asset retirement obligations resulting from the acquisition, construction and/or normal operation of a long-lived asset. Costs related to environmental contamination treatment and cleanup are charged to expense. Estimated future incremental operations, maintenance and management costs directly related to remediation are accrued when such costs are probable and reasonably estimable.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation
	While the Corporation's consolidated subsidiaries are primarily based in the United States, the Corporation has small subsidiaries in Asia Pacific. For those subsidiaries, the local currency has been primarily used as the functional currency. Translation gains and losses of those operations that use local currency as the functional currency are included in the consolidated balance sheets in "Accumulated other comprehensive loss" ("AOCL"). Where the U.S. dollar is used as the functional currency, foreign currency gains and losses are reflected in income.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents
	Cash and cash equivalents include time deposits and investments with maturities of three months or less at the time of purchase.
Financial Instruments Accounting Policies [Text Block]	Financial Instruments
	The Corporation calculates the fair value of financial instruments using quoted market prices whenever available. When quoted market prices are not available for various types of financial instruments (such as forwards, options and swaps), the Corporation uses standard pricing models with market-based inputs that take into account the present value of estimated future cash flows.
Inventory, Policy [Policy Text Block]	Inventories
	Inventories are stated at the lower of cost or market. The method of determining cost for each subsidiary varies among last-in, first-out (“LIFO”); first-in, first-out (“FIFO”); and average cost, and is used consistently from year to year.
	The Corporation routinely exchanges and swaps raw materials and finished goods with other companies to reduce delivery time, freight and other transportation costs. These transactions are treated as non-monetary exchanges and are valued at cost.
Property, Plant and Equipment, Policy [Policy Text Block]	Property
	Land, buildings and equipment, including property under capital lease agreements, are carried at cost less accumulated depreciation. Depreciation is based on the estimated service lives of depreciable assets and is calculated using the straight-line method. Fully depreciated assets are retained in property and accumulated depreciation accounts until they are removed from service. In the case of disposals, assets and related accumulated depreciation are removed from the accounts, and the net amounts, less proceeds from disposal, are included in income.
Impairment and Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment and Disposal of Long-Lived Assets
	The Corporation evaluates long-lived assets and certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. When undiscounted future cash flows are not expected to be sufficient to recover an asset's carrying amount, the asset is written down to its fair value based on bids received from third parties or a discounted cash flow analysis based on market participant assumptions.
	Long-lived assets to be disposed of by sale, if material, are classified as held for sale and reported at the lower of carrying amount or fair value less cost to sell, and depreciation is ceased. Long-lived assets to be disposed of other than by sale are classified as held and used until they are disposed of and reported at the lower of carrying amount or fair value, and depreciation is recognized over the remaining useful life of the assets.
Asset Retirement Obligations, Policy [Policy Text Block]	Asset Retirement Obligations
	The Corporation records asset retirement obligations as incurred and reasonably estimable, including obligations for which the timing and/or method of settlement are conditional on a future event that may or may not be within the control of the Corporation. The fair values of obligations are recorded as liabilities on a discounted basis and are accreted over time for the change in present value. Costs associated with the liabilities are capitalized and amortized over the estimated remaining useful life of the asset, generally for periods of 10 years or less.
Investments in Related Companies, Policy [Policy Text Block]	Investments in Related Companies
	Investments in related companies consist of the Corporation's ownership interests in Dow subsidiaries located in North America and Latin America. The Corporation accounts for these investments using the cost method as it does not have significant influence over the operating and financial policies of these related companies.
Investment, Policy [Policy Text Block]	Investments
	Investments in debt securities are classified as available-for-sale and reported at fair value with unrealized gains and losses recorded in AOCL. The cost of investments sold is determined by specific identification. The Corporation routinely reviews available-for-sale securities for other-than-temporary declines in fair value below the cost basis, and when events or changes in circumstances indicate the carrying value of an asset may not be recoverable, the security is written down to fair value establishing a new cost basis.
Revenue Recognition, Policy [Policy Text Block]	Revenue
	Substantially all of the Corporation's revenues are generated by sales to Dow. Approximately 99 percent of the Corporation's sales are related to sales of product (97 percent in 2013 and 96 percent in 2012); the remaining 1 percent is related to the licensing of patents and technology (3 percent in 2013 and 4 percent in 2012).
	Revenue for product sales to related companies is recognized as risk and title to the product transfer to the related company, which occurs either at the time production is complete or free on board (“FOB”) UCC's manufacturing facility, in accordance with the sales agreement between the Corporation and Dow.
	Revenue for product sales is recognized as risk and title to the product transfer to the customer, which for trade sales, usually occurs at the time shipment is made. As such, title to the product passes when the product is delivered to the freight carrier. UCC's standard terms of delivery are included in its contracts of sale, order confirmation documents, and invoices. Freight costs and any directly related costs of transporting finished product to customers are recorded as “Cost of sales” in the consolidated statements of operations.
	Revenue related to the initial licensing of patents and technology is recognized when earned; revenue related to running royalties is recognized according to licensee production levels.
Legal Costs, Policy [Policy Text Block]	Legal Costs
	The Corporation expenses legal costs as incurred. Accruals for legal matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated.
Severance Costs [Policy Text Block]	Severance Costs
	Management routinely reviews its operations around the world in an effort to ensure competitiveness across its operations and geographic areas. When the reviews result in a workforce reduction related to the shutdown of facilities or other optimization activities, severance benefits are provided to employees primarily under ongoing benefit arrangements. These severance costs are accrued once management commits to a plan of termination including the number of employees to be terminated, their job classifications or functions, their locations and the expected termination date.
Income Tax, Policy [Policy Text Block]	Income Taxes
	The Corporation accounts for income taxes using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences of temporary differences between the carrying amounts and tax bases of assets and liabilities using enacted tax rates. The effect of a change in tax rates on deferred tax assets or liabilities is recognized in income in the period that includes the enactment date. The Corporation is included in Dow's consolidated federal income tax group and consolidated income tax return. The Corporation accounts for its income taxes following the formula in the Dow-UCC Tax Sharing Agreement used to compute the amount due to Dow or UCC for UCC's share of taxable income and tax attributes on Dow's consolidated income tax return. This method generally follows the separate return method. The amounts reported as income taxes payable or receivable represent the Corporation's payment obligation (or refundable amount) to Dow based on a theoretical tax liability calculated on a separate return method.
	Annual tax provisions include amounts considered sufficient to pay assessments that may result from examinations of prior year tax returns; however, the amount ultimately paid upon resolution of issues raised may differ from the amounts accrued.
	The Corporation recognizes the financial statement effects of an uncertain income tax position when it is more likely than not, based on the technical merits, that the position will be sustained upon examination. The Corporation accrues for non-income tax contingencies when it is probable that a liability to a taxing authority has been incurred and the amount of the contingency can be reasonably estimated. The current portion of uncertain income tax positions is included in “Income taxes payable” and the long-term portion is included in “Other noncurrent obligations” in the consolidated balance sheets.
	Provision is made for taxes on undistributed earnings of foreign subsidiaries and related companies to the extent that such earnings are not deemed to be permanently invested.

RESTRUCTURING_Tables

RESTRUCTURING (Tables)	12 Months Ended
	Dec. 31, 2014
Restructuring and Related Activities [Abstract]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
	Restructuring Activities	Costs Associated with Exit or Disposal Activities			Severance Costs			Impairment of Long-Lived Assets, Other Assets and Equity Method Investments
	In millions										Total
	Restructuring charges recognized in the fourth quarter of 2012	$	13		$	10		$	48		$	71
	Charges against the reserve	—			—			(48		)	(48		)
	Reserve balance at December 31, 2012	$	13		$	10		$	—		$	23
	Cash payments	(2		)	(6		)	—			(8		)
	Reserve balance at December 31, 2013	$	11		$	4		$	—		$	15
	Adjustments to the reserve	(3		)	—			—			(3		)
	Cash payments	(2		)	(3		)	—			(5		)
	Reserve balance at December 31, 2014	$	6		$	1		$	—		$	7

DIVESTITURES_Tables

DIVESTITURES (Tables)	12 Months Ended
	Dec. 31, 2014
Divestitures [Abstract]
Schedule of Disposal Groups, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]
	Assets Divested	2-Dec-13
	In millions
	Accounts receivable	$	4
	Inventories	19
	Net property	7
	Total assets divested	$	30

INVENTORIES_Tables

INVENTORIES (Tables)	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]
	Inventories at December 31	2014		2013
	In millions
	Finished goods	$	205	$	233
	Work in process	30		31
	Raw materials	45		50
	Supplies	98		90
	Total inventories	$	378	$	404

PROPERTY_Tables

PROPERTY (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Schedule of other items related to property [Text Block]
	In millions	2014			2013			2012
	Depreciation expense	$	176		$	204		$	217
	Manufacturing maintenance and repair costs	$	295		$	304		$	324
	Capitalized interest	$	5		$	5		$	8
Schedule of property
	Property at December 31	Estimated Useful
	In millions	Lives (Years)		2014			2013
	Land	—		$	49		$	51
	Land and waterway improvements	15-25		208			204
	Buildings	May-50		419			412
	Machinery and equipment	20-Mar		5,744			5,862
	Utility and supply lines	20-May		158			157
	Other property	30-Mar		96			291
	Construction in progress	—		157			102
	Total property			$	6,831		$	7,079

NONCONSOLIDATED_AFFILIATES_Tab

NONCONSOLIDATED AFFILIATES (Tables)	12 Months Ended
	Dec. 31, 2014
Nonconsolidated Affiliates [Abstract]
Equity Method Investments [Table Text Block]
	Principal Nonconsolidated Affiliates at December 31	Ownership Interest
		2014	2013	2012
	Nippon Unicar Company Limited	—%	—%	50%
	Univation Technologies, LLC	—%	—%	50%
Equity Method Investment Summarized Income Statement information [Table Text Block]
	Summarized Income Statement Information
	In millions	2014			2013 (1)		2012
	Sales	$	—		$	452	$	773
	Gross profit	$	—		$	208	$	209
	Net income	$	—		$	142	$	112
	-1	Income statement information for NUC is for the six-month period ended June 30, 2013 and income statement information for Univation is for the nine-month period ended September 30, 2013.

INVESTMENTS_IN_RELATED_COMPANI1

INVESTMENTS IN RELATED COMPANIES (Tables)	12 Months Ended
	Dec. 31, 2014
Investments in Related Companies [Abstract]
Schedule of Cost Method Investments [Table Text Block]
	Investments in Related Companies at December 31	Ownership Interest				Investment Balance
	In millions (except percentages)	2014		2013		2014		2013
	Dow International Holdings Company	19	%	19	%	$	807	$	807
	Dow Quimica Argentina S.A.	23	%	23	%	—		—
	Dow Quimica Mexicana S.A. de C.V.	15	%	15	%	5		5
	GWN Holding, Inc.	—	%	6	%	—		10
	Other	—	%	—	%	1		1
	Total Investments in Related Companies					$	813	$	823

INTANGIBLE_ASSETS_Tables

INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2014
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets
	Intangible Assets at December 31			2014							2013
	In millions	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
	Intangible assets with finite lives:
	Licenses and intellectual property	$	33	$	(33	)	$	—	$	33	$	(33	)	$	—
	Software	55		(40		)	15		49		(39		)	10
	Total intangible assets	$	88	$	(73	)	$	15	$	82	$	(72	)	$	10
Schedule Of Finite Lived Intangible Assets Amortization Expense Table [Table Text Block]
	Amortization Expense	2014		2013			2012
	In millions
	Software (1)	$	2	$	2		$	2
	-1	Included in “Cost of sales” in the consolidated statements of operations.
Schedule of Expected Amortization Expense [Table Text Block]
	Estimated Amortization Expense for Next Five Years
	In millions
	2015	$	2
	2016	$	3
	2017	$	3
	2018	$	3
	2019	$	2

FINANCIAL_INSTRUMENTS_Tables

FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2014
Financial Instruments [Abstract]
Fair Value of Financial Instruments
	Fair Value of Financial Instruments:
		At December 31, 2014											At December 31, 2013
	In millions	Cost			Gain		Loss			Fair Value			Cost			Gain		Loss			Fair Value
	Debt securities (1)	$	5		$	—	$	—		$	5		$	5		$	—	$	—		$	5
	Long-term debt	$	(482	)	$	—	$	(119	)	$	(601	)	$	(471	)	$	—	$	(85	)	$	(556	)
	-1	Marketable securities are included in “Other investments” in the consolidated balance sheets.

FAIR_VALUE_MEASUREMENTS_Tables

FAIR VALUE MEASUREMENTS (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]
	Basis of Fair Value Measurements on a Nonrecurring Basis in 2012		Significant Other Unobservable Inputs			Total Losses
	In millions		(Level 3)			2012
	Assets at fair value:
	Long-lived assets, other assets and equity method investment		$	42		$	(179	)
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
	Basis of Fair Value Measurements	Significant Other Observable Inputs			Significant Other Observable Inputs
	on a Recurring Basis	(Level 2)			(Level 2)
	at December 31
	In millions	2014			2013
	Assets at fair value:
	Debt securities (1)	$	5		$	5
	Liabilities at fair value:
	Long-term debt (2)	$	601		$	556
	-1	Included in “Other investments” in the consolidated balance sheets.
	-2	See Note 10 for information on fair value measurements of long-term debt.

SUPPLEMENTARY_INFORMATION_Tabl

SUPPLEMENTARY INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2014
Supplementary Information [Abstract]
Sundry Income, Net [Table Text Block]
	Sundry Income (Expense) - Net
	In millions	2014			2013			2012
	Dow administrative and overhead fees (1)	$	(26	)	$	(25	)	$	(32	)
	Net commission expense - related company (1)	(21		)	(17		)	(35		)
	Dividend income - related companies (1)	12			16			25
	Net gain on sale of railcar fleet (1)	66			—			—
	Reclassification of cumulative translation adjustment	(16		)	—			—
	Net gain on sale of Dow's Polypropylene Licensing and Catalysts business (2)	4			368			—
	Net gain on sales of property (1)	4			—			5
	Impairment of investment in related company (1)	—			(25		)	(131		)
	Foreign exchange loss	—			(2		)	—
	Other - net	(9		)	(7		)	(14		)
	Total sundry income (expense) - net	$	14		$	308		$	(182	)
	-1	See Note 17 for additional information.
	-2	See Note 4 for additional information.
Supplemental Disclosure of Cash Flow Information [Table Text Block]
	Supplementary Cash Flow Information
	In millions	2014			2013			2012
	Cash payments for interest	$	37		$	37		$	37
	Cash payments (refunds) for income taxes (1)	$	555		$	322		$	(94	)
	-1	Amounts reported in 2013 have been adjusted to reflect an additional $30 million in cash paid for income taxes.

NOTES_PAYABLE_AND_LONGTERM_DEB1

NOTES PAYABLE AND LONG-TERM DEBT (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Instrument [Line Items]
Schedule of Maturities of Long-term Debt [Table Text Block]
	Annual Installments on Long-Term Debt for Next Five Years
	In millions
	2015	$	1
	2016	$	1
	2017	$	1
	2018	$	1
	2019	$	1
Schedule of Short-term Debt [Table Text Block]
	Notes Payable at December 31	2014			2013
	In millions
	Notes payable - related companies	$	43		$	34
	Year-end average interest rates	0.82		%	0.92		%
Schedule of Long-term Debt Instruments [Table Text Block]
	Long-Term Debt at December 31	2014						2013
		Average						Average
	In millions	Rate			2014			Rate		2013
	Promissory notes and debentures:
	Debentures due 2023	7.875	%		$	175		7.875	%	$	175
	Debentures due 2025	6.79	%		12			6.79	%	12
	Debentures due 2025	7.5	%		150			7.5	%	150
	Debentures due 2096	7.75	%		135			7.75	%	135
	Capital lease obligations	—			11			—		—
	Unamortized debt discount	—			(1		)	—		(1		)
	Long-term debt due within one year	—			(1		)	—		—
	Total long-term debt				$	481				$	471

PENSION_PLANS_AND_OTHER_POSTRE1

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)	12 Months Ended
	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Schedule of Net Benefit Costs [Table Text Block]
	Net Periodic Benefit Cost for all Plans
		Defined Benefit Pension Plans										Other Postretirement Benefits
	In millions	2014			2013			2012				2014			2013			2012
	Service cost	$	30		$	31		$	28			$	1		$	2		$	2
	Interest cost	183			165			189				13			14			17
	Expected return on plan assets	(232		)	(232		)	(235		)		—			—			—
	Amortization of prior service cost (credit)	6			7			7				—			(1		)	(2		)
	Amortization of net loss	66			88			60				(10		)	—			—
	Net periodic benefit cost	$	53		$	59		$	49			$	4		$	15		$	17
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
	Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive (Income) Loss
	for all Plans
		Defined Benefit Pension Plans										Other Postretirement Benefits
	In millions	2014			2013			2012				2014			2013			2012
	Net (gain) loss	$	450		$	(283	)	$	375			$	(12	)	$	(102	)	$	16
	Prior service credit arising during period	(38		)	—			—				—			—			—
	Amortization of prior service (cost) credit	(6		)	(7		)	(7		)		—			1			2
	Amortization of net gain (loss)	(66		)	(88		)	(60		)		10			—			—
	Total recognized in other comprehensive (income) loss	$	340		$	(378	)	$	308			$	(2	)	$	(101	)	$	18
	Total recognized in net periodic benefit cost and other comprehensive (income) loss	$	393		$	(319	)	$	357			$	2		$	(86	)	$	35
Schedule of Change in Projected Benefit Obligations, Plan Assets and Funded Status of All Significant Plans [Table Text Block]
	Change in Projected Benefit Obligations, Plan Assets and Funded Status for all Plans
	In millions	Defined Benefit							Other Postretirement Benefits
		Pension Plans
	Change in projected benefit obligation:	2014			2013				2014			2013
	Benefit obligation at beginning of year	$	3,995		$	4,433			$	302		$	414
	Service cost	30			31				1			2
	Interest cost	183			165				13			14
	Plan amendments	(38		)	—				—			—
	Actuarial changes in assumptions and experience	531			(342		)		(13		)	(102		)
	Benefits paid	(340		)	(285		)		(33		)	(26		)
	Other	(16		)	(7		)		—			—
	Benefit obligation at end of year	$	4,345		$	3,995			$	270		$	302
	Change in plan assets:
	Fair value of plan assets at beginning of year	$	3,586		$	3,548			$	—		$	—
	Actual return on plan assets	312			174				—			—
	Employer contributions	2			158				—			—
	Asset transfer	(17		)	(9		)		—			—
	Benefits paid	(340		)	(285		)		—			—
	Fair value of plan assets at end of year	$	3,543		$	3,586			$	—		$	—
	Funded status at end of year	$	(802	)	$	(409	)		$	(270	)	$	(302	)
	Net amounts recognized in the consolidated balance sheets at December 31:
	Current liabilities	$	(1	)	$	(1	)		$	(27	)	$	(33	)
	Noncurrent liabilities	(801		)	(408		)		(243		)	(269		)
	Net amounts recognized in the consolidated balance sheets	$	(802	)	$	(409	)		$	(270	)	$	(302	)
	Pretax amounts recognized in AOCL at December 31:
	Net loss (gain)	$	1,955		$	1,570			$	(109	)	$	(107	)
	Prior service cost (credit)	(19		)	26				(1		)	(1		)
	Pretax balance in AOCL at end of year	$	1,936		$	1,596			$	(110	)	$	(108	)
Schedule of Expected Benefit Payments [Table Text Block]
	Estimated Future Benefit Payments at December 31, 2014
	In millions	Defined Benefit Pension Plans			Other Postretirement Benefits
	2015	$	280		$	28
	2016	278			23
	2017	278			21
	2018	277			20
	2019	277			19
	2020 through 2024	1,361			88
	Total	$	2,751		$	199
Schedule of Allocation of Plan Assets [Table Text Block]
	Strategic Target Allocation of Plan Assets
	Asset Category	Target Allocation
	Equity securities	23	%
	Fixed income securities	45	%
	Alternative investments	27	%
	Other	5	%
	Total	100	%
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
	Basis of Fair Value Measurements at	Quoted Prices in Active Markets for Identical Items			Significant Other Observable Inputs			Significant Unobservable Inputs			Total
	31-Dec-14	(Level 1)			(Level 2)			(Level 3)
	In millions
	Cash and cash equivalents	$	3		$	131		$	—		$	134
	Equity securities:
	U.S. equity	$	360		$	78		$	1		$	439
	Non-U.S. equity - developed countries	166			160			—			326
	Emerging markets	40			62			3			105
	Equity derivatives	—			(1		)	—			(1		)
	Total equity securities	$	566		$	299		$	4		$	869
	Fixed income securities:
	U.S. government and municipalities	$	—		$	673		$	—		$	673
	U.S. agency mortgage backed securities	—			66			—			66
	Corporates - investment grade	—			743			—			743
	Non-U.S. governments - developed countries	—			6			—			6
	Non-U.S. corporates - developed countries	—			160			—			160
	Emerging markets debt	—			14			—			14
	Other asset-backed securities	—			11			1			12
	Other fixed income funds	—			—			32			32
	High yield bonds	—			2			—			2
	Total fixed income securities	$	—		$	1,675		$	33		$	1,708
	Alternative investments:
	Real estate	$	—		$	—		$	288		$	288
	Private equity	—			—			233			233
	Absolute return	—			126			166			292
	Total alternative investments	$	—		$	126		$	687		$	813
	Total other securities	$	—		$	(3	)	$	22		$	19
	Total pension plan assets at fair value	$	569		$	2,228		$	746		$	3,543
	Basis of Fair Value Measurements at	Quoted Prices in Active Markets for Identical Items			Significant Other Observable Inputs			Significant Unobservable Inputs			Total
	31-Dec-13	(Level 1)			(Level 2)			(Level 3)
	In millions
	Cash and cash equivalents	$	3		$	304		$	—		$	307
	Equity securities:
	U.S. equity	$	388		$	143		$	—		$	531
	Non-U.S. equity - developed countries	181			85			—			266
	Emerging markets	119			67			2			188
	Total equity securities	$	688		$	295		$	2		$	985
	Fixed income securities:
	U.S. government and municipalities	$	—		$	606		$	—		$	606
	U.S. agency mortgage backed securities	—			63			—			63
	Corporates - investment grade	—			635			—			635
	Non-U.S. governments - developed countries	—			2			—			2
	Non-U.S. corporates - developed countries	—			159			—			159
	Emerging markets debt	—			22			—			22
	Other asset-backed securities	—			9			2			11
	Other fixed income funds	—			—			12			12
	High yield bonds	—			3			—			3
	Fixed income derivatives	—			(3		)	—			(3		)
	Total fixed income securities	$	—		$	1,496		$	14		$	1,510
	Alternative investments:
	Real estate	$	—		$	—		$	292		$	292
	Private equity	—			—			228			228
	Absolute return	—			127			103			230
	Total alternative investments	$	—		$	127		$	623		$	750
	Total other securities	$	—		$	12		$	22		$	34
	Total pension plan assets at fair value	$	691		$	2,234		$	661		$	3,586
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Assumptions Used [Table Text Block]
	Pension Plan Assumptions	Benefit Obligations							Net Periodic Costs
		at December 31							for the Year
		2014		2013		2012			2014		2013		2012
	Discount rate	3.9	%	4.75	%	3.85	%		4.75	%	3.85	%	4.85	%
	Rate of increase in future compensation levels	4.5	%	4.5	%	4.5	%		4.5	%	4.5	%	4.5	%
	Long-term rate of return on assets	—		—		—			6.8	%	6.9	%	6.9	%
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
	Pension Plans with Accumulated Benefit Obligations
	in Excess of Plan Assets at December 31
	In millions	2014			2013
	Projected benefit obligation	$	4,345		$	3,995
	Accumulated benefit obligation	$	4,302		$	3,963
	Fair value of plan assets	$	3,543		$	3,586
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]
	Fair Value Measurement of Level 3	Equity Securities			Fixed Income Securities			Alternative Investments			Other Investments			Total
	Pension Plan Assets
	In millions
	Balance at January 1, 2013	$	3		$	17		$	552		$	22		$	594
	Actual return on plan assets:
	Relating to assets held at Dec 31, 2013	(2		)	—			22			—			20
	Relating to assets sold during 2013	—			—			40			—			40
	Purchases, sales and settlements	1			(3		)	9			—			7
	Balance at December 31, 2013	$	2		$	14		$	623		$	22		$	661
	Actual return on plan assets:
	Relating to assets held at Dec 31, 2014	(2		)	—			(22		)	—			(24		)
	Relating to assets sold during 2014	—			—			35			—			35
	Purchases, sales and settlements	4			20			53			—			77
	Transfers out of Level 3, net	—			(1		)	—			—			(1		)
	Foreign currency impact	—			—			(2		)	—			(2		)
	Balance at December 31, 2014	$	4		$	33		$	687		$	22		$	746
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of Assumptions Used [Table Text Block]
	Plan Assumptions for Other Postretirement Benefits	Benefit Obligations							Net Periodic Costs
		at December 31							for the Year
		2014		2013		2012			2014		2013		2012
	Discount rate	3.75	%	4.4	%	3.65	%		4.4	%	3.65	%	4.6	%
	Initial health care cost trend rate	7.05	%	7.46	%	7.85	%		7.46	%	7.85	%	8.3	%
	Ultimate health care cost trend rate	5	%	5	%	5	%		5	%	5	%	5	%
	Year ultimate trend rate to be reached	2020		2020		2019			2020		2020		2019

LEASED_PROPERTY_Tables

LEASED PROPERTY (Tables)	12 Months Ended
	Dec. 31, 2014
Leases [Abstract]
Operating Leases of Lessee Disclosure [Table Text Block]
	Minimum Lease Commitments
	at December 31, 2014
	In millions
	2015	$	7
	2016	5
	2017	4
	2018	3
	2019	2
	2020 and thereafter	8
	Total	$	29

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
	Domestic and Foreign Components of Income (Loss) Before Income Taxes
	In millions	2014			2013			2012
	Domestic (1)	$	896		$	1,077		$	(95	)
	Foreign	(5		)	(10		)	(2		)
	Total	$	891		$	1,067		$	(97	)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
	Provision for Income Taxes
					2014									2013									2012
	In millions	Current			Deferred			Total				Current		Deferred			Total			Current			Deferred			Total
	Federal (1)	$	(41	)	$	311		$	270			$	337	$	18		$	355		$	10		$	15		$	25
	State and local	(5		)	38			33				5		(47		)	(42		)	(5		)	(3		)	(8		)
	Foreign	1			—			1				6		—			6			—			—			—
	Total	$	(45	)	$	349		$	304			$	348	$	(29	)	$	319		$	5		$	12		$	17
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
	Reconciliation to U.S. Statutory Rate
	In millions	2014			2013			2012
	Taxes at U.S. statutory rate	$	312		$	374		$	(34	)
	Equity earnings effect	(4		)	(1		)	2
	U.S. manufacturing deductions	(26		)	(7		)	—
	Benefit of dividend income from investments in related companies	—			(6		)	(9		)
	Audit settlement and court case impact	—			20			—
	Unrecognized tax benefits	—			(30		)	9
	Impairment of investment in related company	—			1			46
	Federal tax accrual adjustments	(14		)	(5		)	(8		)
	State and local tax impact	42			(38		)	12
	Other - net	(6		)	11			(1		)
	Total tax provision	$	304		$	319		$	17
	Effective tax rate	34.1		%	29.9		%	(17.5		)%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
	Deferred Tax Balances at December 31	2014							2013
	In millions	Deferred Tax Assets			Deferred Tax Liabilities				Deferred Tax Assets			Deferred Tax Liabilities
	Property	$	—		$	197			$	—		$	235
	Tax loss and credit carryforwards	82			—				95			—
	Postretirement benefit obligations	818			420				706			440
	Other accruals and reserves (1)	263			3				656			4
	Inventory	53			—				30			—
	Long-term debt	—			—				—			1
	Investments	—			1				7			—
	Other - net	2			—				2			1
	Subtotal	$	1,218		$	621			$	1,496		$	681
	Valuation allowances	(53		)	—				(50		)	—
	Total	$	1,165		$	621			$	1,446		$	681
Schedule of Total Gross Unrecognized Tax Benefits [Table Text Block]
	Total Gross Unrecognized Tax Benefits
	In millions	2014			2013			2012
	Balance at January 1	$	4		$	166		$	161
	Increases related to positions taken on items from prior years	—			1			—
	Decreases related to positions taken on items from prior years	—			(7		)	—
	Increases related to positions taken in current year	—			—			8
	Settlement of uncertain tax positions with tax authorities	—			(154		)	—
	Decreases due to expiration of statutes of limitations	(3		)	(2		)	(3		)
	Balance at December 31	$	1		$	4		$	166
Schedule of Tax Years Subject to Examination by Major Tax Jurisdiction
	Tax Years Subject to Examination by Major Tax Jurisdiction at December 31
	Jurisdiction	Earliest Open Year
		2014	2013
	United States:
	Federal income tax	2004	2004
	State and local income tax	2004	2004

ACCUMULATED_OTHER_COMPREHENSIV1

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income [Abstract]
Schedule of Comprehensive Income (Loss) [Table Text Block]
	Accumulated Other Comprehensive Loss
	In millions	2014			2013			2012
	Cumulative Translation Adjustments at beginning of year	$	(78	)	$	(56	)	$	(52	)
	Translation adjustments	(1		)	(1		)	(4		)
	Reclassification to earnings - Sundry income (expense) - net (1)	16			(21		)	—
	Balance at end of period	$	(63	)	$	(78	)	$	(56	)
	Pension and Other Postretirement Benefit Plans at beginning of year	$	(967	)	$	(1,289	)	$	(1,080	)
	Net gain (loss) during period (net of tax of $(165), $122, $(141)) (2) (3)	(273		)	263			(250		)
	Prior service credit arising during the period (net of tax of $13, $-, $-)	25			—			—
	Amortization of prior service cost included in net periodic pension costs (net of tax of $2, $2, $2) (2) (3)	4			4			3
	Amortization of net loss included in net periodic pension costs (net of tax of $25, $33, $22) (2) (3)	31			55			38
	Balance at end of period	$	(1,180	)	$	(967	)	$	(1,289	)
	Total accumulated other comprehensive loss	$	(1,243	)	$	(1,045	)	$	(1,345	)
	-1	In 2014, reclassification resulted from the divestiture or liquidation of subsidiaries. In 2013, reclassification resulted from the divestiture of a nonconsolidated affiliate.
	(2)    See Note 15 for additional information.
	(3)    Tax amounts are included in "Provision for income taxes" in the consolidated statements of operations.

BUSINESS_AND_GEOGRAPHIC_AREAS_

BUSINESS AND GEOGRAPHIC AREAS (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Reporting [Abstract]
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
	Geographic Area Information	United States		Asia Pacific		Rest of World		Total
	In millions
	2014
	Sales to external customers (1)	$	62	$	1	$	19	$	82
	Long-lived assets	$	1,113	$	6	$	33	$	1,152
	2013
	Sales to external customers (1)	$	100	$	43	$	18	$	161
	Long-lived assets	$	1,197	$	6	$	36	$	1,239
	2012
	Sales to external customers (1)	$	98	$	64	$	15	$	177
	Long-lived assets	$	1,287	$	8	$	39	$	1,334
	-1	Of the total sales to external customers, China was less than 1 percent in 2014, approximately 21 percent in 2013 and 21 percent in 2012; and Malaysia was less than 1 percent in 2014, approximately 4 percent in 2013 and 10 percent in 2012, both of which are included in Asia Pacific.

BUSINESS_AND_GEOGRAPHIC_AREAS_1

BUSINESS AND GEOGRAPHIC AREAS (Schedule of Revenue by Geographic Area and Other Details) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to external customers	$82		$161		$177
Long-lived assets	1,152		1,239
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to external customers	62	[1]	100	[1]	98	[1]
Long-lived assets	1,113		1,197		1,287
ASIA PACIFIC
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to external customers	1	[1]	43	[1]	64	[1]
Long-lived assets	6		6		8
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total sales related to a specific country in a geographic area	1.00%		21.00%		21.00%
MALAYSIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of total sales related to a specific country in a geographic area	1.00%		4.00%		10.00%
REST OF WORLD
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales to external customers	19	[1]	18	[1]	15	[1]
Long-lived assets	$33		$36		$39
[1]	Of the total sales to external customers, China was less than 1 percent in 2014, approximately 21 percent in 2013 and 21 percent in 2012; and Malaysia was less than 1 percent in 2014, approximately 4 percent in 2013 and 10 percent in 2012, both of which are included in Asia Pacific.

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	years
Accounting Policies [Abstract]
Amortization Period for Cost Capitalized on Asset Retirement Obligations	10
Sales Revenue, Goods, Net, Percentage	99.00%	97.00%	96.00%
Sales Revenue, Non Goods, Net, Percentage	1.00%	3.00%	4.00%

RESTRUCTURING_Details

RESTRUCTURING (Details) (USD $)	12 Months Ended			27 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Mar. 31, 2012	Jun. 30, 2013
				employees
Restructuring Cost and Reserve [Line Items]
Restructuring charges	($3)	$0	$74
4Q12 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			71
Charges against reserve			-48
Charges against reserve	-5	-8
Restructuring Reserve	7	15	23	7
Restructuring Reserve, Accrual Adjustment	-3
4Q12 Restructuring [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Restructuring Cost and Reserve [Line Items]
Charges against reserve			-48
Other Asset Impairment Charges			48
Charges against reserve	0	0
Restructuring Reserve	0	0	0	0
Restructuring Reserve, Accrual Adjustment	0
4Q12 Restructuring [Member] | Exit Or Disposal Activities [Member]
Restructuring Cost and Reserve [Line Items]
Charges against reserve			0
Business Exit Costs			13
Charges against reserve	-2	-2
Restructuring Reserve	6	11	13	6
Restructuring Reserve, Accrual Adjustment	-3
4Q12 Restructuring [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated			100
Charges against reserve			0
Severance Costs			10
Charges against reserve	-3	-6		-9
Restructuring Reserve	1	4	10	1
Restructuring Reserve, Accrual Adjustment	0
Entity Number of Employees	9			9
Certain Oxygenated Solvents Manufacturing Facilities in Texas [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Restructuring Cost and Reserve [Line Items]
Other Asset Impairment Charges			36
Performance monomer manufacturing facility in South Charleston West Virginia [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Restructuring Cost and Reserve [Line Items]
Other Asset Impairment Charges			1
Other Assets Written-Off associated with Plant Closures [Member]
Restructuring Cost and Reserve [Line Items]
Other Asset Impairment Charges			2
Nippon Unicar Company Limited [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Restructuring Cost and Reserve [Line Items]
Equity Method Investment, Other than Temporary Impairment			9
Equity Method Investment, Ownership Percentage						50.00%
1Q12 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges					$3
1Q12 Restructuring [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated					20

DIVESTITURES_DIVESTITURES_Poly

DIVESTITURES DIVESTITURES (Polypropylene Licensing and Catalysts Business) (Details) (Polypropylene Licensing and Catalyst Business [Member], USD $)	3 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Dec. 02, 2013
Polypropylene Licensing and Catalyst Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net								$4
Disposal Group, Including Discontinued Operation, Inventory								19
Assets divested, net property								7
Assets, total assets divested								30
Proceeds from Divestiture of Businesses		398	4	[1]	368	[1]	0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	4	368
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Net of Tax	$3	$233
[1]	See Note 4 for additional information.

INVENTORIES_Schedule_of_Invent

INVENTORIES (Schedule of Inventories) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Inventory Disclosure [Abstract]
Finished goods	$205	$233
Work in process	30	31
Raw materials	45	50
Supplies	98	90
Total inventories	378	404
Inventory, LIFO Reserve	$125	$132
Percentage of LIFO Inventory	67.00%	70.00%

PROPERTY_Schedule_of_Property_

PROPERTY (Schedule of Property) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property	6,831	$7,079
Land [Member]
Property, Plant and Equipment [Line Items]
Property	49	51
Land and waterway improvements [Member]
Property, Plant and Equipment [Line Items]
Property	208	204
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property	419	412
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property	5,744	5,862
Utility and Supply Lines [Member]
Property, Plant and Equipment [Line Items]
Property	158	157
Other property [Member]
Property, Plant and Equipment [Line Items]
Property	96	291
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property	157	$102
Maximum [Member] | Land and waterway improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	25 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	50 years
Maximum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Maximum [Member] | Utility and Supply Lines [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Maximum [Member] | Other property [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Minimum [Member] | Land and waterway improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Utility and Supply Lines [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Other property [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years

PROPERTY_Schedule_of_Other_Ite

PROPERTY (Schedule of Other Items Related to Property) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Abstract]
Depreciation expense	$176	$204	$217
Manufacturing maintenance and repair costs	295	304	324
Capitalized interest	$5	$5	$8

NONCONSOLIDATED_AFFILIATES_Nar

NONCONSOLIDATED AFFILIATES (Narrative) (Details) (USD $)	12 Months Ended				3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012	Sep. 30, 2013	Jun. 30, 2013
Schedule of Equity Method Investments [Line Items]
Investments in nonconsolidated affiliates	$13	$6
Equity Method Investment, Dividends	0	62		72
Undistributed Earnings of Nonconsolidated Affiliates	7	0
Equity in earnings of nonconsolidated affiliates	7	82		59
Dividend, Noncash, Ownership interest in Subsidiary					70
Principal Nonconsolidated Affiliates [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Summarized Financial Information, Revenue	0	452	[1]	773
Equity Method Investment, Summarized Financial Information, Gross Profit (Loss)	0	208	[1]	209
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	0	142	[1]	112
Investments in nonconsolidated affiliates	0
Equity in earnings of nonconsolidated affiliates	0	84		59
Nippon Unicar Company Limited [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	0.00%	0.00%		50.00%
Univation Technologies, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	0.00%	0.00%		50.00%
Dividend, Noncash, Ownership interest in Subsidiary					70
Union Carbide Subsidiary C, Inc. [Member]
Schedule of Equity Method Investments [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent					100.00%
Nippon Unicar Company Limited [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage						50.00%
Sale price per agreement					13
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax					$20
[1]	Income statement information for NUC is for the six-month period ended June 30, 2013 and income statement information for Univation is for the nine-month period ended September 30, 2013.

NONCONSOLIDATED_AFFILIATES_Sum

NONCONSOLIDATED AFFILIATES (Summary of Financial Information) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Schedule of Equity Method Investments [Line Items]
Equity in earnings of nonconsolidated affiliates	$7	$82		$59
Investments in nonconsolidated affiliates	13	6
Principal Nonconsolidated Affiliates [Member]
Schedule of Equity Method Investments [Line Items]
Sales	0	452	[1]	773
Gross Profit	0	208	[1]	209
Net Income	0	142	[1]	112
Equity in earnings of nonconsolidated affiliates	0	84		59
Investments in nonconsolidated affiliates	$0
Nippon Unicar Company Limited [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	0.00%	0.00%		50.00%
Univation Technologies, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage	0.00%	0.00%		50.00%
[1]	Income statement information for NUC is for the six-month period ended June 30, 2013 and income statement information for Univation is for the nine-month period ended September 30, 2013.

INVESTMENTS_IN_RELATED_COMPANI2

INVESTMENTS IN RELATED COMPANIES (Details) (USD $)	12 Months Ended					3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013	Sep. 30, 2014
Schedule of Cost-method Investments [Line Items]
Investments in related companies	$813	$823				$823
Cost-method Investments, Other than Temporary Impairment	0	25	[1]	131	[1]
Dow International Holdings Company [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company	19.00%	19.00%				19.00%
Cost Method Investments	807	807				807
Dow Quimica Argentina S.A. [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company	23.00%	23.00%				23.00%
Cost Method Investments	0	0				0
Dow Quimica Mexicana S.A. de C.V. [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company	15.00%	15.00%				15.00%
Cost Method Investments	5	5				5
GWN Holding, Inc. [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company	0.00%	6.00%				6.00%	6.30%
Cost Method Investments	0	10				10	10
Other Investments [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company		0.00%				0.00%
Cost Method Investments	1	1				1
Fair Value, Inputs, Level 3 [Member] | Dow Quimica Argentina S.A. [Member] | Fair Value, Measurements, Nonrecurring [Member]
Schedule of Cost-method Investments [Line Items]
Cost-method Investments, Other than Temporary Impairment						$25
The Dow Chemical Company [Member] | GWN Holding, Inc. [Member]
Schedule of Cost-method Investments [Line Items]
Ownership Interest Percentage, Related Company							93.70%
[1]	See Note 17 for additional information.

INTANGIBLE_ASSETS_Intangible_A

INTANGIBLE ASSETS (Intangible Assets) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$88	$82
Finite-Lived Intangible Assets, Accumulated Amortization	-73	-72
Finite-Lived Intangible Assets, Net	15	10
Licensing Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	33	33
Finite-Lived Intangible Assets, Accumulated Amortization	-33	-33
Finite-Lived Intangible Assets, Net	0	0
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	55	49
Finite-Lived Intangible Assets, Accumulated Amortization	-40	-39
Finite-Lived Intangible Assets, Net	$15	$10

INTANGIBLE_ASSETS_Schedule_of_

INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Amortization Expense, software, included in 'cost of sales'	$2	[1]	$2	[1]	$2	[1]
[1]	Included in bCost of salesb in the consolidated statements of operations.

INTANGIBLE_ASSETS_Schedule_of_1

INTANGIBLE ASSETS (Schedule of Future Amortization Expense of Intangible Assets) (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]
Estimated Amortization Expense, 2015	$2
Estimated Amortization Expense, 2016	3
Estimated Amortization Expense, 2017	3
Estimated Amortization Expense, 2018	3
Estimated Amortization Expense, 2019	$2

FINANCIAL_INSTRUMENTS_Investme

FINANCIAL INSTRUMENTS (Investments) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financial Instruments [Abstract]
Investing Results, Proceeds from sales of available-for-sale securities	$0	$0	$0

FINANCIAL_INSTRUMENTS_Fair_Val

FINANCIAL INSTRUMENTS (Fair Value of Financial Instruments) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Long-term Debt [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	($482)		($471)
Financial Instruments, Gross Unrealized Gains	0		0
Financial Instruments, Gross Unrealized Loss	-119		-85
Financial Instruments, Fair Value	-601		-556
Debt Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	5	[1]	5	[1]
Financial Instruments, Gross Unrealized Gains	0	[1]	0	[1]
Financial Instruments, Gross Unrealized Loss	0	[1]	0	[1]
Financial Instruments, Fair Value	$5	[1]	$5	[1]
[1]	Marketable securities are included in bOther investmentsb in the consolidated balance sheets.

FAIR_VALUE_MEASUREMENTS_Basis_

FAIR VALUE MEASUREMENTS (Basis of Fair Value Measurements on a Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], Fair Value, Inputs, Level 2 [Member], USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Debt, Fair Value	$601	[1]	$556	[1]
Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	$5	[2]	$5	[2]
[1]	See Note 10 for information on fair value measurements of long-term debt.
[2]	Included in bOther investmentsb in the consolidated balance sheets.

FAIR_VALUE_MEASUREMENTS_FAIR_V

FAIR VALUE MEASUREMENTS FAIR VALUE MEASURMENTS (Basis of Fair Value Measurements on a Nonrecurring Basis) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other than Temporary Impairment Losses, Investments				($179)
Impairment of investment in related company	0	25	[1]	131	[1]
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Method Investments, Fair Value Disclosure				42
Nippon Unicar Company Limited [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Method Investments, Fair Value Disclosure				33
Modeland International Holdings, Inc [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of investment in related company				131
Modeland International Holdings, Inc [Member] | Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Assets, Fair Value Disclosure				9
4Q12 Restructuring [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Asset Impairment Charges				$48
[1]	See Note 17 for additional information.

SUPPLEMENTARY_INFORMATION_Sund

SUPPLEMENTARY INFORMATION (Sundry Income, Net) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Supplementary Information [Line Items]
Net gain on sales of property		$4	[1]	$0		$5	[1]
Total sundry income (expense) - net		14		308		-182
Net gain on sales of railcar fleet		66	[1]	0		0
Reclassification of cumulative translation adjustment		-16		0		0
Impairment of investment in related company		0		25	[1]	131	[1]
Foreign exchange loss		0		-2		0
Other - net		-9		-7		-14
Administrative and overhead fees [Member] | The Dow Chemical Company [Member]
Supplementary Information [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party		-26	[1]	-25	[1]	-32	[1]
Net Commission Expense [Member]
Supplementary Information [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party		-21	[1]	-17	[1]	-35	[1]
Dividend Income [Member]
Supplementary Information [Line Items]
Dividend income - related company		12	[1]	16	[1]	25	[1]
Polypropylene Licensing and Catalyst Business [Member]
Supplementary Information [Line Items]
Net gain on sale of Dow's Polypropylene Licensing and Catalysts business	$398	$4	[2]	$368	[2]	$0
[1]	See Note 17 for additional information.
[2]	See Note 4 for additional information.

SUPPLEMENTARY_INFORMATION_Accr

SUPPLEMENTARY INFORMATION (Accrued and other current liabilities) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Accrued and other current liabilities	$192	$182
Accrued and Other Current Liabilities [Member]
Accrued Environmental Loss Contingencies, Current	$69	$58

SUPPLEMENTARY_INFORMATION_Othe

SUPPLEMENTARY INFORMATION (Other Income Statement and Cash Flow Information) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Supplementary Information [Abstract]
Cash payments for interest	$37	$37		$37
Cash payments (refunds) for income taxes	555	322	[1]	-94
Additional 2013 Income Taxes Paid		$30
[1]	Amounts reported in 2013 have been adjusted to reflect an additional $30 million in cash paid for income taxes.

COMMITMENTS_AND_CONTINGENT_LIA1

COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014							Dec. 31, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Environmental Loss Contingency Disclosure [Text Block]
	Accrued Liability for Environmental Matters
	In millions	2014			2013
	Balance at January 1	$	126		$	95
	Additional accruals	62			80
	Charges against reserve	(56		)	(49		)
	Balance at December 31	$	132		$	126
Receivables for Asbestos-Related Costs
	Receivables for Asbestos-Related Costs at December 31	2014			2013
	In millions
	Receivables for defense and resolution costs - carriers with settlement agreements	$	69		$	66
	Receivables for insurance recoveries - carriers without settlement agreements	10			25
	Total	$	79		$	91
Fixed and determinable portion of take or pay obligations (table text block)
	Fixed and Determinable Portion of Take-or-Pay Obligations
	at December 31, 2014
	In millions
	2015	$	24
	2016	22
	2017	22
	2018	20
	2019	18
	2020 and beyond	47
	Total	$	153
Loss Contingencies [Line Items]
Environmental Remediation Expense	$62							$80	$31
Capital expenditures for environmental protection	6							2	7
Accrual for Environmental Loss Contingencies [Roll Forward]
Accrual for Environmental Loss Contingencies, beginning balance	126							95
Accrual for Environmental Loss Contingencies, Provision for New Losses	62							80
Accrual For Environmental Loss Contingencies Charges Against Reserve	-56							-49
Accrual for environmental loss contingencies, ending balance	132							126	95
Accrual For Environmental Loss Contingencies Superfund Sites [Member]
Accrual for Environmental Loss Contingencies [Roll Forward]
Accrual for environmental loss contingencies, ending balance	$22							$23

COMMITMENTS_AND_CONTINGENT_LIA2

COMMITMENTS AND CONTINGENT LIABILITIES (Asbestos Related Matters) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2002
Loss Contingencies [Line Items]
Liability For Asbestos Claims Gross	$513	$513	$501	$602	$2,200
Loss Contingency, Range of Possible Loss, Minimum	540	540
Loss Contingency, Range of Possible Loss, Maximum	640	640
Asbestos Related Charges Credit	78	78	0	0
Percentage of Recorded Asbests Liability Related to Pending Claims	22.00%	22.00%	19.00%
Percentage of Recorded Asbestos Liability Related to Future Claims	78.00%	78.00%	81.00%
Estimated Insurance Recoveries	79	79	91		1,350
Defense and Resolution Costs Asbestos Related Claims		108	107	100
Estimated Insurance Recoveries of Defense and Resolution Costs [Member] [Domain]
Loss Contingencies [Line Items]
Estimated Insurance Recoveries	69	69	66
Estimated Insurance Recoveries Carriers Without Settlement Agreements [Member]
Loss Contingencies [Line Items]
Estimated Insurance Recoveries	$10	$10	$25

COMMITMENTS_AND_CONTIGENT_LIAB

COMMITMENTS AND CONTIGENT LIABILITIES (Purchase Commitments) (Details) (Inventories [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
Inventories [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Long-term Purchase Commitment, Time Period (in years)	13 years
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2015	$24
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2016	22
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2017	22
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2018	20
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2019	18
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Due 2020 and beyond	47
Fixed and Determinable Portion of Take or Pay Obligations under Purchase, Total	$153

NOTES_PAYABLE_AND_LONGTERM_DEB2

NOTES PAYABLE AND LONG-TERM DEBT (Schedule of Notes Payable) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Disclosure [Abstract]
Notes payable - related companies	$43	$34
Period-end average interest rates	0.82%	0.92%

NOTES_PAYABLE_AND_LONGTERM_DEB3

NOTES PAYABLE AND LONG-TERM DEBT (Schedule of Long-Term Debt) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Long-Term Debt	$481	$471
Unamortized debt discount	-1	-1
Long-term Debt due within one year	-1	0
Final Maturity 2023 [Member]
Debt Instrument [Line Items]
Average Interest Rate in Period	7.88%	7.88%
Long-Term Debt	175	175
Final Maturity 2025 (a) [Member]
Debt Instrument [Line Items]
Average Interest Rate in Period	6.79%	6.79%
Long-Term Debt	12	12
Final Maturity 2025 (b) [Member]
Debt Instrument [Line Items]
Average Interest Rate in Period	7.50%	7.50%
Long-Term Debt	150	150
Final Maturity 2096 [Member]
Debt Instrument [Line Items]
Average Interest Rate in Period	7.75%	7.75%
Long-Term Debt	135	135
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-Term Debt	$11	$0

NOTES_PAYABLE_AND_LONGTERM_DEB4

NOTES PAYABLE AND LONG-TERM DEBT (Schedule of Annual Installments) (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Annual Installments [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$1
Long-term Debt, Maturities, Repayments of Principal in Year Two	1
Long-term Debt, Maturities, Repayments of Principal in Year Three	1
Long-term Debt, Maturities, Repayments of Principal in Year Four	1
Long-term Debt, Maturities, Repayments of Principal in Year Five	$1

PENSION_PLANS_AND_OTHER_POSTRE2

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Pension Plans) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Pension contributions	$2	$158	$158
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation	4,345	3,995
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	4,302	3,963
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets	3,543	3,586
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	531	-342
Defined Benefit Plan, Benefit Obligation	4,345	3,995	4,433
Discount rate - benefit obligations	3.90%	4.75%	3.85%
Rate of increase in future compensation levels - benefit obligations	4.50%	4.50%	4.50%
Discount rate - net periodic costs	4.75%	3.85%	4.85%
Rate of increase in future compensation levels - net periodic costs	4.50%	4.50%	4.50%
Expected long-term rate of return on plan assets - net periodic costs	6.80%	6.90%	6.90%
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	2
2014 SOA Mortality Change [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	$139
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Bond Indices	60
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Bond Indices	90

PENSION_PLANS_AND_OTHER_POSTRE3

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Other Postretirement Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit obligations	3.90%	4.75%	3.85%
Discount rate - net periodic costs	4.75%	3.85%	4.85%
Rate of increase in future compensation levels - benefit obligations	4.50%	4.50%	4.50%
Rate of increase in future compensation levels - net periodic costs	4.50%	4.50%	4.50%
Expected long-term rate of return on plan assets - net periodic costs	6.80%	6.90%	6.90%
Employer Group Waiver Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax	10	55
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate - benefit obligations	3.75%	4.40%	3.65%
Initial health care cost trend rate - benefit obligations	7.05%	7.46%	7.85%
Ultimate health care cost trend rate - benefit obligations	5.00%	5.00%	5.00%
Discount rate - net periodic costs	4.40%	3.65%	4.60%
Initial health care cost trend rate - net periodic costs	7.46%	7.85%	8.30%
Ultimate health care cost trend rate - net periodic costs	5.00%	5.00%	5.00%
Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate	2020	2020	2019
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	6
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	16

PENSION_PLANS_AND_OTHER_POSTRE4

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income for All Significant Plans) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$30	$31	$28
Interest cost	183	165	189
Expected return on plan assets	-232	-232	-235
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	6	7	7
Amortization of net loss	66	88	60
Net periodic benefit cost (credit)	53	59	49
Net (gain) loss	450	-283	375
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	-38	0	0
Amortization of prior service (cost) credit	-6	-7	-7
Amortization of net loss	-66	-88	-60
Total recognized in other comprehensive (income) loss	340	-378	308
Total recognized in net periodic benefit cost and other comprehensive loss	393	-319	357
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2	2
Interest cost	13	14	17
Expected return on plan assets	0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	-1	-2
Amortization of net loss	-10	0	0
Net periodic benefit cost (credit)	4	15	17
Net (gain) loss	-12	-102	16
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax	0	0	0
Amortization of prior service (cost) credit	0	1	2
Amortization of net loss	10	0	0
Total recognized in other comprehensive (income) loss	-2	-101	18
Total recognized in net periodic benefit cost and other comprehensive loss	$2	($86)	$35

PENSION_PLANS_AND_OTHER_POSTRE5

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Change in Projected Benefit Obligations, Plan Assets and Funded Status of All Significant Plans) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	$53	$59	$49
Defined Benefit Plan, Amortization of Net Gains (Losses)	-87
Defined Benefit Plan, Change in Benefit Obligations [Roll Forward]
Benefit Obligations, Beginning Balance	3,995	4,433
Service cost	30	31	28
Interest cost	183	165	189
Defined Benefit Plan, Plan Amendments	-38	0
Actuarial changes in assumptions and experience	531	-342
Benefits paid	-340	-285
Other	-16	-7
Benefit Obligations, Ending Balance	4,345	3,995	4,433
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets, Beginning	3,586	3,548
Actual return on plan assets	312	174
Employer contributions	2	158
Asset transfer	-17	-9
Benefits Paid	-340	-285
Fair Value of Plan Assets, Ending	3,543	3,586	3,548
Funded status at end of year	-802	-409
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	-1	-1
Noncurrent liabilities	-801	-408
Net amounts recognized in the consolidated balance sheets	-802	-409
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net loss (gain)	1,955	1,570
Prior service cost (credit)	-19	26
Pretax balance in AOCI at end of year	1,936	1,596
Defined Benefit Plan, Expected Return on Plan Assets	232	232	235
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	6	7	7
Defined Benefit Plan, Amortization of Gains (Losses)	-66	-88	-60
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	1
Employer Group Waiver Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prescription Drug Benefit, Reduction in Accumulated Postretirement Benefit Obligation for Subsidy		-55
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost	4	15	17
Defined Benefit Plan, Change in Benefit Obligations [Roll Forward]
Benefit Obligations, Beginning Balance	302	414
Service cost	1	2	2
Interest cost	13	14	17
Defined Benefit Plan, Plan Amendments	0	0
Actuarial changes in assumptions and experience	-13	-102
Benefits paid	-33	-26
Other	0	0
Benefit Obligations, Ending Balance	270	302	414
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets, Beginning	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Asset transfer	0	0
Benefits Paid	0	0
Fair Value of Plan Assets, Ending	0	0	0
Funded status at end of year	-270	-302
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	-27	-33
Noncurrent liabilities	-243	-269
Net amounts recognized in the consolidated balance sheets	-270	-302
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Net loss (gain)	-109	-107
Prior service cost (credit)	-1	-1
Pretax balance in AOCI at end of year	-110	-108
Defined Benefit Plan, Expected Return on Plan Assets	0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	-1	-2
Defined Benefit Plan, Amortization of Gains (Losses)	10	0	0
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	($11)

PENSION_PLANS_AND_OTHER_POSTRE6

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Estimated Future Benefit Payments) (Details) (USD $)	Dec. 31, 2014
In Millions, unless otherwise specified
Defined Benefit Pension Plans [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2015	$280
2016	278
2017	278
2018	277
2019	277
2020 through 2024	1,361
Total	2,751
Other Postretirement Benefits [Member]
Defined Benefit Plan, Estimated Future Benefit Payments [Abstract]
2015	28
2016	23
2017	21
2018	20
2019	19
2020 through 2024	88
Total	$199

PENSION_PLANS_AND_OTHER_POSTRE7

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Plan Assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	100.00%
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	$531	($342)
Fair value of plan assets	3,543	3,586	3,548
2014 SOA Mortality Change [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actuarial Gain (Loss)	139
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	23.00%
Equity Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	869	985
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	45.00%
Debt Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32	12
Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	27.00%
Alternative Investments [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$813	$750
Other Pension Plan Asset Category [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	5.00%

PENSION_PLANS_AND_OTHER_POSTRE8

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Basis of Fair Value Measurements of Pension Plan Assets) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$3,543	$3,586	$3,548
Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	569	691
Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,228	2,234
Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	746	661	594
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0	0
Cash and Cash Equivalents [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	134	307
Cash and Cash Equivalents [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	3
Cash and Cash Equivalents [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	131	304
Cash and Cash Equivalents [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	869	985
Equity Securities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	566	688
Equity Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	299	295
Equity Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4	2	3
U.S. Equity [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	439	531
U.S. Equity [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	360	388
U.S. Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	78	143
U.S. Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	0
Non-U.S. Equity - Developed Countries [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	326	266
Non-U.S. Equity - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	166	181
Non-U.S. Equity - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	160	85
Non-U.S. Equity - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Emerging Markets Equity [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	105	188
Emerging Markets Equity [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40	119
Emerging Markets Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	62	67
Emerging Markets Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	2
Equity Derivatives [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	-1
Equity Derivatives [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Equity Derivatives [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	-1
Equity Derivatives [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,708	1,510
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,675	1,496
Fixed Income Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33	14	17
U.S. government and municipalities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	673	606
U.S. government and municipalities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. government and municipalities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	673	606
U.S. government and municipalities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. agency and agency mortgage backed securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66	63
U.S. agency and agency mortgage backed securities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. agency and agency mortgage backed securities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66	63
U.S. agency and agency mortgage backed securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate Bonds - Investment Grade [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	743	635
Corporate Bonds - Investment Grade [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate Bonds - Investment Grade [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	743	635
Corporate Bonds - Investment Grade [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Governments - Developed Countries [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	2
Non-U.S. Governments - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Governments - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	2
Non-U.S. Governments - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Corporate Bonds - Developed Countries [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	160	159
Non-U.S. Corporate Bonds - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Non-U.S. Corporate Bonds - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	160	159
Non-U.S. Corporate Bonds - Developed Countries [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Emerging Market Debt [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14	22
Emerging Market Debt [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Emerging Market Debt [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	14	22
Emerging Market Debt [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Asset-backed Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12	11
Other Asset-backed Securities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Asset-backed Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11	9
Other Asset-backed Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1	2
Other Fixed Income Funds [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32	12
Other Fixed Income Funds [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Fixed Income Funds [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Fixed Income Funds [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32	12
High Yield Bonds [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	3
High Yield Bonds [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
High Yield Bonds [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2	3
High Yield Bonds [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Alternative Investments [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	813	750
Alternative Investments [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Alternative Investments [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	126	127
Alternative Investments [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	687	623	552
Real Estate [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	288	292
Real Estate [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Real Estate [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Real Estate [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	288	292
Private Equity [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	233	228
Private Equity [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Private Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Private Equity [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	233	228
Absolute Return [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	292	230
Absolute Return [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Absolute Return [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	126	127
Absolute Return [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	166	103
Other Securities [Member] | Defined Benefit Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19	34
Other Securities [Member] | Defined Benefit Pension Plans [Member] | Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Other Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	-3	12
Other Securities [Member] | Defined Benefit Pension Plans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$22	$22

PENSION_PLANS_AND_OTHER_POST_R

PENSION PLANS AND OTHER POST RETIREMENT BENEFITS (Fair Value of Level 3 Pension Plan Assets) (Details) (Defined Benefit Pension Plans [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning			$3,548
Fair Value of Plan Assets, Ending	3,543	3,586	3,548
Fair Value, Inputs, Level 3 [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning	661	594
Relating to assets held during the period	-24	20
Relating to assets sold during the period	35	40
Purchases, sales, and settlements	77	7
Transfers into Level 3, net	-1
Fair Value of Plan Assets, Ending	746	661
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)	-2
Equity Securities [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Ending	869	985
Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning	2	3
Relating to assets held during the period	-2	-2
Relating to assets sold during the period	0	0
Purchases, sales, and settlements	4	1
Transfers into Level 3, net	0
Fair Value of Plan Assets, Ending	4	2
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets	0
Fixed Income Securities [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Ending	1,708	1,510
Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning	14	17
Relating to assets held during the period	0	0
Relating to assets sold during the period	0	0
Purchases, sales, and settlements	20	-3
Transfers into Level 3, net	-1
Fair Value of Plan Assets, Ending	33	14
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets	0
Alternative Investments [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Ending	813	750
Alternative Investments [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning	623	552
Relating to assets held during the period	-22	22
Relating to assets sold during the period	35	40
Purchases, sales, and settlements	53	9
Transfers into Level 3, net	0
Fair Value of Plan Assets, Ending	687	623
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets	-2
Other Investment Plan Assets [Member] | Fair Value, Inputs, Level 3 [Member]
Pension Plan, Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value of Plan Assets, Beginning	22	22
Relating to assets held during the period	0	0
Relating to assets sold during the period	0	0
Purchases, sales, and settlements	0	0
Transfers into Level 3, net	0
Fair Value of Plan Assets, Ending	22	22
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets	$0

LEASED_PROPERTY_Leased_Propert

LEASED PROPERTY (Leased Property) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Leases [Abstract]
Leases, Rental Expense	$27	$31	$35
Operating Leases, Future Minimum Payments Due [Abstract]
Future minimum operating lease commitments due during 2015	7
Future minimum operating lease commitments due during 2016	5
Future minimum operating lease commitments due during 2017	4
Future minimum operating lease commitments due during 2018	3
Future minimum operating lease commitments due during 2019	2
Future minimum operating lease commitments due during 2020 and thereafter	8
Total future minimum operating lease commitments	$29

RELATED_PARTY_TRANSACTIONS_Det

RELATED PARTY TRANSACTIONS (Details) (USD $)	12 Months Ended					3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014
Related Party Transaction [Line Items]
Impairment of investment in related company	$0	$25,000,000	[1]	$131,000,000	[1]
Dividend, Noncash, Ownership interest in Subsidiary							70,000,000
Payments of Dividends	1,280,000,000	591,000,000		775,000,000
The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Service Fee with Parent	10.00%
Notes Receivable, Related Parties	1,200,000,000	2,400,000,000				2,400,000,000
Line of Credit Facility, Maximum Borrowing Capacity	1,000,000,000
Notes Receivable, Related Parties, Noncurrent	875,000,000	843,000,000				843,000,000
Payments of Dividends		591,000,000
Proceeds from Dividends Received	12,000,000	16,000,000		25,000,000
Proceeds from Sale of Productive Assets	145,000,000
Gain (Loss) on Sale of Assets and Asset Impairment Charges	66,000,000
Dow Quimica Argentina S.A. [Member]
Related Party Transaction [Line Items]
Ownership Interest Percentage, Related Company	23.00%	23.00%				23.00%
Cost Method Investments	0	0				0
GWN Holding, Inc. [Member]
Related Party Transaction [Line Items]
Ownership Interest Percentage, Related Company	0.00%	6.00%				6.00%		6.30%
Cost Method Investments	0	10,000,000				10,000,000		10,000,000
Modeland International Holdings, Inc [Member]
Related Party Transaction [Line Items]
Impairment of investment in related company				131,000,000
Dividends declared				9,000,000
General and Administrative Expense [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	26,000,000	25,000,000		32,000,000
Estimated Federal Tax Liability, Related Party [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Tax Payment	579,000,000	163,000,000		0
Retained Earnings [Member]
Related Party Transaction [Line Items]
Dividends declared	1,289,000,000	661,000,000		784,000,000
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Dow Quimica Argentina S.A. [Member]
Related Party Transaction [Line Items]
Impairment of investment in related company						25,000,000
Union Carbide Subsidiary C, Inc. [Member]
Related Party Transaction [Line Items]
Ownership Interest, Subsidiary							100.00%
The Dow Chemical Company [Member] | GWN Holding, Inc. [Member]
Related Party Transaction [Line Items]
Ownership Interest Percentage, Related Company								93.70%
Purchases from Dow [Member] | Cost of Sales [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	2,900,000,000	2,900,000,000		3,100,000,000
Activity Based Costs [Member] | Cost of Sales [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$53,000,000	$46,000,000		$51,000,000
[1]	See Note 17 for additional information.

INCOME_TAXES_Narrative_Details

INCOME TAXES (Narrative) (Details) (USD $)	12 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2011
Income Tax Note [Line Items]
Operating loss carryforwards	$1,035	$1,188				$1,035	$1,188
Tax credit carryforwards, net of uncertain tax positions	5	7				5	7
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries	50	48	53			50	48
Valuation allowance, deferred tax assets	53	50				53	50
Effective tax rate	34.10%	29.90%	-17.50%
Unrecognized Tax Benefits	1	4	166			1	4	161
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	1	3				1	3
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	-6	-15	-1
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0	1				0	1
Expiration 2015 through 2019 [Domain]
Income Tax Note [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	530					530
Provision (credit) for income taxes [Domain]
Income Tax Note [Line Items]
Tax charge related to adjusted uncertain tax position					41
Tax Adjustments, Settlements, and Unusual Provisions				-22
Polypropylene Licensing and Catalyst Business [Member]
Income Tax Note [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal						$4	$368

INCOME_TAXES_Schedule_of_Domes

INCOME TAXES (Schedule of Domestic and Foreign Components of Income Before Income Taxes and Tax Reconciliation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Income Tax Disclosures [Abstract]
Income (Loss) Before Income Taxes, Domestic	$896	$1,077	[1]	($95)
Income (Loss) Before Income Taxes, Foreign	-5	-10		-2
Income (Loss) Before Income Taxes	-891	-1,067		97
Taxes at U.S. statutory rate	312	374		-34
Equity earnings effect	-4	-1		2
Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount	26	7		0
Benefit of dividend income from investments in related companies	0	-6		-9
Income Tax Rate Reconciliation, Audit settlement and court case	0	20		0
Unrecognized tax benefits	0	-30		9
Impairment of investment in related company	0	1		46
Federal tax accrual adjustments	-14	-5		-8
State and local tax impact	42	-38		12
Other - net	-6	11		-1
Total tax provision (credit)	$304	$319		$17
Effective tax rate	34.10%	29.90%		-17.50%
[1]	In 2013, the domestic component of "Income Before Income Taxes" included a gain of $368B million for the sale of Dow's Polypropylene Licensing and Catalysts business.

INCOME_TAXES_Schedule_of_Provi

INCOME TAXES (Schedule of Provision (Credit) for Income Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal, current	($41)	[1]	$337	$10
State and local, current	-5		5	-5
Foreign, current	1		6	0
Total, current	-45		348	5
Federal, deferred	311	[1]	18	15
State and local, deferred	38		-47	-3
Foreign, deferred	0		0	0
Total, deferred	349		-29	12
Federal	270	[1]	355	25
State and local	33		-42	-8
Foreign	1		6	0
Total tax provision (credit)	$304		$319	$17
[1]	Reflects the 2014 impact of accelerated deductions.

INCOME_TAXES_Schedule_of_Defer

INCOME TAXES (Schedule of Deferred Tax Balances) (Details) (USD $)	Dec. 31, 2014		Dec. 31, 2013
In Millions, unless otherwise specified
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Property, Deferred Tax Assets	$0		$0
Loss and Credit Carryforwards, Deferred Tax Assets	82		95
Postretirement benefit obligations, deferred tax assets	818		706
Other accruals and reserves, deferred tax assets	263	[1]	656
Inventory, deferred tax assets	53		30
Long-term Debt, Deferred Tax Assets	0		0
Investments, Deferred Tax Assets	0		7
Other - net, deferred tax assets	2		2
Subtotal, deferred tax assets	1,218		1,496
Valuation allowances, deferred tax assets	-53		-50
Total, deferred tax assets	1,165		1,446
Property, deferred tax liabilities	197		235
Deferred Tax Liabilities, Loss and credit carryforward	0		0
Postretirement Benefits, Deferred Tax Liabilities	420		440
Other accruals and Reserves, Deferred Tax Liabilities	3		4
Inventory, deferred tax liabilities	0		0
Long-term debt, deferred tax liabilities	0		1
Investments, Deferred Tax Liabilities	1		0
Other - net, deferred tax liabilities	0		1
Total, deferred tax liabilities	$621		$681
[1]	The reduction in 2014 reflects the impact of accelerated deductions.

INCOME_TAXES_Uncertain_Tax_Pos

INCOME TAXES (Uncertain Tax Position) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Total Gross Unrecognized Tax Benefits [Roll Forward]
Gross unrecognized tax benefits, beginning balance	$4	$166	$161
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	0	1	0
Decreases related to positions taken on items from prior years	0	-7	0
Increases related to positions taken in the current year	0	0	8
Settlement of uncertain tax positions with tax authorities	0	-154	0
Decreases due to expiration of statutes of limitations	-3	-2	-3
Gross unrecognized tax benefits, ending balance	1	4	166
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	-6	-15	-1
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	1
Federal Income Tax [Member]
Reconciliation of Total Gross Unrecognized Tax Benefits [Roll Forward]
Earliest open year	2004	2004
State and Local Income Tax [Member]
Reconciliation of Total Gross Unrecognized Tax Benefits [Roll Forward]
Earliest open year	2004	2004
Non-Income Tax Contingencies Related To Issues In US And Foreign Locations [Member]
Reconciliation of Total Gross Unrecognized Tax Benefits [Roll Forward]
Loss Contingency, Estimate of Possible Loss	$0	$0

ACCUMULATED_OTHER_COMPREHENSIV2

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Stockholders' Equity Attributable to Parent	$2,809		$3,709
Translation adjustments	15		-22		-4
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity Attributable to Parent	-1,243		-1,045		-1,345		-1,132
Accumulated Translation Adjustment [Member]
Stockholders' Equity Attributable to Parent	-63		-78		-56		-52
Translation adjustments	-1		-1		-4
Accumulated Defined Benefit Plans and Other Post Retirement Adjustment [Member]
Stockholders' Equity Attributable to Parent	-1,180		-967		-1,289		-1,080
Net gain (loss) during period (net of tax of $122, $(141), $(84))	-273	[1],[2]	263	[1],[2]	-250	[1],[2]
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	25	[1],[2]	0	[1],[2]	0	[1],[2]
Amortization of prior service cost included in net periodic pension costs (net of tax of $2, $2, $2)	-4	[1],[2]	-4	[1],[2]	-3	[1],[2]
Amortization of net loss included in net periodic pension costs (net of tax of $33, $22, $31)	31	[1],[2]	55	[1],[2]	38	[1],[2]
Impact to Sundry income (expense) [Domain]
Reclassification to earnings - Sundry income (expense) - net	$16	[3]	($21)	[3]	$0
[1]	See Note 15 for additional information.
[2]	Tax amounts are included in "Provision for income taxes" in the consolidated statements of operations.
[3]	In 2014, reclassification resulted from the divestiture or liquidation of subsidiaries. In 2013, reclassification resulted from the divestiture of a nonconsolidated affiliate.

ACCUMULATED_OTHER_COMPREHENSIV3

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Other (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax	($165)	$122	($141)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit), Tax	13	0	0
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	2	2	2
Other comprehensive income amortization of net loss included in net periodic pension costs, tax	($25)	($33)	($22)