Union Carbide 10-Q 3 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Mar. 31, 2019shares
Document and Entity Information
Entity Registrant Name	UNION CARBIDE CORP /NEW/
Entity Central Index Key	0000100790
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding	935.51
Entity Small Business	false
Entity Emerging Growth Company	false

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net trade sales	$ 28	$ 32
Net sales to related companies	1,250	1,286
Total Net Sales	1,278	1,318
Cost of sales	950	1,092
Research and development expenses	6	5
Selling, general and administrative expenses	2	2
Restructuring and asset related charges - net	1	1
Integration and separation costs	1	0
Sundry income (expense) - net	(12)	(8)
Interest expense and amortization of debt discount	7	7
Income before income taxes	299	203
Provision for income taxes	54	38
Net Income Attributable to Union Carbide Corporation	245	165
Depreciation	43	45
Capital Expenditures	$ 60	$ 44

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income attributable to Union Carbide Corporation	$ 245	$ 165
Other comprehensive income, net of tax
Pension and other postretirement benefit plans	15	16
Other Comprehensive Income (Loss), Net of Tax	15	16
Comprehensive income attributable to Union Carbide Corporation	$ 260	$ 181

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 13	$ 13
Accounts receivable:
Trade (net of allowance for doubtful receivables 2019: $-; 2018: $-)	22	21
Related companies	872	1,029
Other	28	31
Income taxes receivable	280	330
Notes receivable from related companies	1,437	1,281
Inventories	302	304
Other current assets	13	15
Total current assets	2,967	3,024
Investments
Investments in related companies	238	639
Other investments	22	23
Noncurrent receivables	69	67
Noncurrent receivables from related companies	53	54
Total investments	382	783
Property
Property	7,374	7,430
Less accumulated depreciation	5,925	5,982
Net property	1,449	1,448
Other Assets
Intangible assets (net of accumulated amortization 2019: $86; 2018: $87)	24	25
Operating lease right-of-use assets	100	0
Deferred income tax assets - noncurrent	461	463
Deferred charges and other assets	28	34
Total other assets	613	522
Total Assets	5,411	5,777
Current Liabilities
Notes payable - related companies	25	28
Notes Payable - Other	2	1
Long-term debt due within one year	1	1
Accounts payable:
Trade	249	247
Related companies	391	515
Other	34	39
Operating lease liabilities - current	18	0
Income taxes payable	89	24
Asbestos-related liabilities - current	110	118
Accrued and other current liabilities	150	163
Total current liabilities	1,069	1,136
Long-Term Debt	473	473
Other Noncurrent Liabilities
Pension and other postretirement benefits - noncurrent	970	979
Asbestos-related liabilities - noncurrent	1,133	1,142
Operating lease liabilities - noncurrent	82	0
Other noncurrent obligations	141	132
Total other noncurrent liabilities	2,326	2,253
Stockholder's Equity
Common stock (authorized: 1,000 shares of $0.01 par value each; issued: 935.51 shares)	0	0
Additional paid-in capital	138	138
Retained earnings	2,951	3,338
Accumulated other comprehensive loss	(1,546)	(1,561)
Union Carbide Corporation's stockholder's equity	1,543	1,915
Total Liabilities and Equity	$ 5,411	$ 5,777

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Allowance for doubtful accounts	$ 0	$ 0
Accumulated Amortization	$ 86	$ 87
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	935.51	935.51

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities
Net income attributable to Union Carbide Corporation	$ 245	$ 165
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	49	52
Provision (Credit) for deferred income tax	(1)	2
Restructuring and asset related charges - net	1	1
Net periodic pension benefit cost	13	11
Pension contributions	(1)	(41)
Changes in assets and liabilities:
Accounts and notes receivable	2	(2)
Related company receivables	(40)	189
Inventories	(17)	9
Accounts payable	7	(5)
Related company payables	(124)	(218)
Asbestos-related payments	(17)	(30)
Other assets and liabilities	99	20
Cash provided by operating activities	216	153
Investing Activities
Capital expenditures	(60)	(44)
Change in noncurrent receivable from related company	1	1
Proceeds from sales of investments	2	0
Cash used for investing activities	(57)	(43)
Financing Activities
Dividends paid to parent	(160)	(111)
Changes in short-term notes payable	1	1
Cash used for financing activities	(159)	(110)
Summary
Increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	13	13
Cash and cash equivalents at end of period	$ 13	$ 13

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Union Carbide Corporation's Stockholder's Equity at Dec. 31, 2017				$ 2,582	$ (1,352)
Net income attributable to Union Carbide Corporation	$ 165			165
Dividends, Common Stock				(111)
Other Comprehensive Income (Loss), Net of Tax	16				16
Union Carbide Corporation's Stockholder's Equity at Mar. 31, 2018	1,438	$ 0	$ 138	2,636	(1,336)
Union Carbide Corporation's Stockholder's Equity at Dec. 31, 2018	1,915			3,338	(1,561)
Net income attributable to Union Carbide Corporation	245			245
Dividends, Common Stock				(632)
Other Comprehensive Income (Loss), Net of Tax	15				15
Union Carbide Corporation's Stockholder's Equity at Mar. 31, 2019	$ 1,543	$ 0	$ 138	$ 2,951	$ (1,546)

CONSOLIDATED FINANCIAL STATEMEN

CONSOLIDATED FINANCIAL STATEMENTS	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
CONSOLIDATED FINANCIAL STATEMENTS	CONSOLIDATED FINANCIAL STATEMENTS Basis of Presentation The unaudited interim consolidated financial statements of Union Carbide Corporation and its subsidiaries (the "Corporation" or "UCC") were prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and reflect all adjustments (including normal recurring accruals) which, in the opinion of management, are considered necessary for the fair presentation of the results for the periods presented. These statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2018 . The Corporation is a wholly owned subsidiary of The Dow Chemical Company ("TDCC"). In accordance with the accounting guidance for earnings per share, the presentation of earnings per share is not required in financial statements of wholly owned subsidiaries. The Corporation’s business activities comprise components of TDCC’s global operations rather than stand-alone operations. TDCC conducts its worldwide operations through principal product groups. Because there are no separable reportable business segments for UCC under the accounting guidance related to segment reporting 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. Effective August 31, 2017, pursuant to the merger of equals transaction contemplated by the Agreement and Plan of Merger, dated as of December 11, 2015, as amended on March 31, 2017, TDCC and its consolidated subsidiaries and E. I. du Pont de Nemours and Company and its consolidated subsidiaries ("DuPont") each merged with subsidiaries of DowDuPont Inc. ("DowDuPont") and, as a result, TDCC and DuPont became subsidiaries of DowDuPont (the "Merger"). Subsequent to the Merger, TDCC and DuPont engaged in a series of internal reorganization and realignment steps to realign their businesses into three subgroups: agriculture, materials science and specialty products. Dow Inc. was formed as a wholly owned subsidiary of DowDuPont to serve as a holding company for the materials science business. On April 1, 2019, DowDuPont completed the separation of its materials science business and Dow Inc. became the direct parent company of TDCC. UCC will continue to be a wholly owned subsidiary of TDCC. See Note 3 for additional information. Intercompany transactions and balances are eliminated in consolidation. Transactions with the Corporation’s parent company, TDCC, and other subsidiaries of TDCC and DowDuPont, have been reflected as related company transactions in the consolidated financial statements. See Note 13 for additional information. Adoption of Accounting Standards In the first quarter of 2019, UCC adopted Accounting Standards Update ("ASU") 2016-02, "Leases (Topic 842)," and associated ASUs related to Topic 842. See Notes 2 and 9 for additional information. UCC added a significant accounting policy for leases as a result of the adoption of Topic 842: Leases UCC determines whether a contract contains a lease at contract inception. A contract contains a lease if there is an identified asset and the Corporation has the right to control the asset. Operating lease right-of-use (“ROU”) assets represent UCC’s right to use an underlying asset for the lease term, and lease liabilities represent UCC’s obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. UCC uses the incremental borrowing rate (“IBR”) in determining the present value of lease payments, unless the implicit rate is readily determinable. If lease terms include options to extend or terminate the lease, the ROU asset and lease liability are measured based on the reasonably certain decision. Leases with a term of 12 months or less at the commencement date are not recognized on the balance sheet and are expensed as incurred. UCC has lease agreements with lease and non-lease components, which are accounted for as a single lease component for all classes of leased assets for which UCC is the lessee. Additionally, for certain equipment leases, the portfolio approach is applied to account for the operating lease ROU assets and lease liabilities. In the consolidated statements of income, lease expense for operating lease payments is recognized on a straight-line basis over the lease term. For finance leases, interest expense is recognized on the lease liability and the ROU asset is amortized over the lease term. Some leasing arrangements require variable payments that are dependent upon usage or output, or may vary for other reasons, such as insurance or tax payments. Variable lease payments are recognized as incurred and are not presented as part of the ROU asset or lease liability.

RECENT ACCOUNTING GUIDANCE

RECENT ACCOUNTING GUIDANCE	3 Months Ended
	Mar. 31, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
RECENT ACCOUNTING GUIDANCE	RECENT ACCOUNTING GUIDANCE Recently Adopted Accounting Guidance In the first quarter of 2019, the Corporation adopted ASU 2016-02, "Leases (Topic 842)," and associated ASUs related to Topic 842, which requires organizations that lease assets to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. The new guidance requires that a lessee recognize assets and liabilities for leases, and recognition, presentation and measurement in the financial statements will depend on its classification as a finance or operating lease. In addition, the new guidance requires disclosures to help investors and other financial statement users better understand the amount, timing and uncertainty of cash flows arising from leases. Lessor accounting remains largely unchanged from legacy U.S. GAAP but does contain some targeted improvements to align with revenue recognition guidance Topic 606, "Revenue from Contracts with Customers." The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and early adoption was permitted. The Corporation adopted Topic 842 using the modified retrospective transition approach, applying the new standard to leases existing at the date of initial adoption. The Corporation elected to apply the transition requirements at the effective date rather than at the beginning of the earliest comparative period presented with a cumulative effect adjustment to the opening balance of retained earnings in the period of adoption, and prior periods were not restated. In addition, the Corporation elected to apply the package of practical expedients permitted under the transition guidance which does not require reassessment of prior conclusions, lease classification and initial direct lease costs. The Corporation did not elect to use the hindsight practical expedient in determining the lease term or assessing impairment of ROU assets. Adoption of the new standard resulted in the recording of lease assets and liabilities of $99 million at January 1, 2019. The difference between the additional lease assets and lease liabilities, net of deferred taxes, was recorded as an adjustment to retained earnings and was not material. The adoption of the new guidance did not have a material impact on the Corporation's consolidated statements of income and had no impact on cash flows. See Note 9 for additional information.

MERGER WITH DUPONT AND BUSINESS

MERGER WITH DUPONT AND BUSINESS SEPARATION	3 Months Ended
	Mar. 31, 2019
MERGER WITH DUPONT AND BUSINESS SEPARATION [Abstract]
Mergers, Acquisitions and Dispositions Disclosures [Text Block]	MERGER WITH DUPONT AND BUSINESS SEPARATION On April 1, 2019, DowDuPont completed the separation of its materials science business and Dow Inc. became the direct parent company of TDCC. UCC will continue to be a wholly owned subsidiary of TDCC. In the first quarter of 2019, in anticipation of the business separations, UCC's assets and liabilities aligned with the specialty products business were transferred to TDCC as part of the internal reorganization steps to align TDCC's specialty products business to DowDuPont. In order to align entity ownership under TDCC, UCC distributed shares and assets to TDCC through dividends or asset distributions. As a result, in February 2019, UCC issued to TDCC a dividend of 1,067 shares of common stock of Dow International Holding Company (“DIHC”), a cost method investment. Prior to the distribution, UCC had an 11.9 percent ownership interest in DIHC with the other 88.1 percent owned by TDCC and its other wholly owned subsidiaries. After the dividend, UCC’s investment in DIHC was reduced to 4.4 percent and resulted in a reduction in "Investments in related companies" of $401 million . UCC also transferred, as an asset distribution, the assets and liabilities aligned with the specialty products business for an additional dividend of $71 million to TDCC. The results of these transactions are reflected in “Investments in related companies” and “Retained earnings” in the consolidated balance sheets.

REVENUE FROM CONTRACT WITH CUST

REVENUE FROM CONTRACT WITH CUSTOMERS	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	NOTE 4 - REVENUE Substantially all of the Corporation's revenues are generated by intercompany sales to TDCC. Products are sold to and purchased from TDCC at market-based prices in accordance with the terms of TDCC’s intercompany pricing policies. For the three months ended March 31, 2019 and 2018, approximately 98 percent of the Corporation's revenue related to sales of product; the remaining 2 percent related to the licensing of patents and technology. The Corporation sells its products to TDCC to simplify the customer interface process. The Corporation’s contract liabilities include payments received in advance of performance under long-term contracts for product sales and royalties, and are realized when the associated revenue is recognized under the contract with remaining contract terms that range up to 22 years. The Corporation will have rights to future consideration for revenue recognized when product is delivered to the customer. The balance of contract liabilities was $41 million at March 31, 2019 ( $41 million at December 31, 2018 ) and was included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets. The Corporation disaggregates its revenue from contracts with customers by type of customer (sales to related parties and sales to trade customers) as presented in the consolidated statements of income and believes this disaggregation best depicts the nature, amount, timing and uncertainty of its revenue and cash flows. Substantially all of the product sales are made to the parent entity, TDCC, and there are no unique economic factors that affect revenue recognition and cash flows associated with these product sales.

RESTRUCTURING AND ASSET RELATED

RESTRUCTURING AND ASSET RELATED CHARGES - NET	3 Months Ended
	Mar. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	In September and November 2017, the Corporation approved restructuring actions that were aligned with DowDuPont’s synergy targets. For the three months ended March 31, 2019 , the Corporation recorded pretax restructuring charges of $1 million for severance and related benefit costs ( $1 million for the three months ended March 31, 2018 ). The impact of these charges was shown as “Restructuring and asset related charges - net” in the consolidated statements of income. These actions are expected to be substantially completed by the end of 2019. The Corporation recorded pretax restructuring charges of $76 million inception-to-date under the restructuring program, consisting of severance and related benefit costs of $14 million , and $62 million for asset write-downs and write-offs of manufacturing and facility related assets at multiple UCC sites, including a steam unit in Institute, West Virginia. At March 31, 2019 , severance of $10 million had been paid, leaving a liability of $4 million . The Corporation expects to incur additional costs in the future related to restructuring activities, as UCC continually looks for ways to enhance the efficiency and cost effectiveness of its operations. The Corporation 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.

INVENTORIES

INVENTORIES	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES The following table provides a breakdown of inventories: Inventories Mar 31, Dec 31, In millions Finished goods $ 241 $ 264 Work in process 43 45 Raw materials 40 45 Supplies 86 85 Total $ 410 $ 439 Adjustment of inventories to a LIFO basis (108 ) (135 ) Total inventories $ 302 $ 304

INTANGIBLE ASSETS

INTANGIBLE ASSETS	3 Months Ended
	Mar. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract]
INTANGIBLE ASSETS DISCLOSURE	INTANGIBLE ASSETS The following table provides information regarding the Corporation’s intangible assets: Intangible Assets Mar 31, 2019 Dec 31, 2018 In millions Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Intangible assets with finite lives: Licenses and developed technology $ 33 $ (33 ) $ — $ 33 $ (33 ) $ — Software 77 (53 ) 24 79 (54 ) 25 Total intangible assets $ 110 $ (86 ) $ 24 $ 112 $ (87 ) $ 25 Total estimated amortization expense for 2019 and the five succeeding fiscal years is as follows: Estimated Amortization Expense In millions 2019 $ 8 2020 $ 8 2021 $ 6 2022 $ 4 2023 $ 2 2024 $ —

COMMITMENTS AND CONTINGENT LIAB

COMMITMENTS AND CONTINGENT LIABILITIES	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES DISCLOSURE	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 March 31, 2019 , the Corporation had accrued obligations of $100 million for probable environmental remediation and restoration costs, including $18 million for the remediation of Superfund sites. These obligations are included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets. This is management’s current 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 three 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 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. As new or additional information becomes available and/or certain spending trends become known, management will evaluate such information in determination of the current estimate of the environmental liability. In the second quarter of 2019, as a result of the potential culmination of long standing negotiations with regulators and/or agencies, management will perform a comprehensive review of UCC's environmental matters, and believes that it is reasonably possible that the accrued obligation for environmental obligations may increase by up to $50 million as a result of the review. At December 31, 2018 , the Corporation had accrued obligations of $94 million for probable environmental remediation and restoration costs, including $16 million for the remediation of Superfund sites. 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 A summary of asbestos-related matters can be found in Note 13 to the Consolidated Financial Statements included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2018 . Introduction 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 Asbestos-Related Liability Since 2003, the Corporation has engaged Ankura Consulting Group, LLC ("Ankura"), a third party actuarial specialist, to review the Corporation's historical asbestos-related claim and resolution activity in order to assist UCC management in estimating the Corporation's asbestos-related liability. Each year, Ankura has reviewed the claim and resolution activity to determine the appropriateness of updating the most recent Ankura study. Based on the December 2018 Ankura review and the Corporation's own review of the data, the Corporation's total asbestos-related liability through the terminal year of 2049, including asbestos-related defense and processing costs, was $1,260 million at December 31, 2018 , and was included in “Asbestos-related liabilities - current” and “Asbestos-related liabilities - noncurrent” in the consolidated balance sheets. Each quarter, the Corporation reviews claims filed, settled and dismissed, as well as average settlement and resolution costs by disease category. The Corporation also considers additional quantitative and qualitative factors such as the nature of pending claims, trial experience of the Corporation and other asbestos defendants, current spending for defense and processing costs, significant appellate rulings and legislative developments, trends in the tort system, and their respective effects on expected future resolution costs. UCC management considers all these factors in conjunction with the most recent Ankura study and determines whether a change in the estimate is warranted. Based on the Corporation's review of 2019 activity, it was determined that no adjustment to the accrual was required at March 31, 2019 . The Corporation’s asbestos-related liability for pending and future claims and defense and processing costs was $1,243 million at March 31, 2019 , and approximately 17 percent of the recorded liability related to pending claims and approximately 83 percent related to future claims. Summary The Corporation's management believes the amounts recorded for the asbestos-related liability (including defense and processing costs) reflect reasonable and probable estimates of the liability based on current, known facts. However, future events, such as the number of new claims to be filed and/or received each year and the average cost of defending and disposing of each such claim, as well as the numerous uncertainties surrounding asbestos litigation in the United States over a significant period of time, could cause the actual costs for the Corporation to be higher or lower than those projected or those recorded. Any such event could result in an increase or decrease in the recorded liability. Because of the uncertainties described above, the Corporation cannot estimate the full range of the cost of resolving pending and future asbestos-related claims facing UCC and Amchem. As a result, it is reasonably possible that an additional cost of disposing of asbestos-related claims, including future defense and processing 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. Other Litigation 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 the possibility is remote that the aggregate of all such other claims and lawsuits will have a material adverse impact on the results of operations, cash flows and financial position of the Corporation.

LEASES (Notes)

LEASES (Notes)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases of Lessee Disclosure [Text Block]	LEASES Operating lease ROU assets are included in "Operating lease right-of-use assets" and finance lease ROU assets are included in "Net property" in the consolidated balance sheets. With respect to lease liabilities, operating lease liabilities are included in "Operating lease liabilities - current" and "Operating lease liabilities - noncurrent," and finance lease liabilities are included in "Long-term debt due within one year" and "Long-Term Debt" in the consolidated balance sheets. The Corporation routinely leases sales and administrative offices, product and utility production facilities, warehouses and tanks for product storage, motor vehicles, railcars, computers, office machines and equipment. Some leases contain renewal provisions, purchase options and escalation clauses. The terms for these leased assets vary depending on the lease agreement. These leased assets have remaining lease terms that currently range from 1 to 11 years . The Corporation's lease agreements do not contain any material residual value guarantees or restrictive covenants. See Notes 1 and 2 for additional information on leases. The components of lease cost for operating and finance leases for the three months ended March 31, 2019 were as follows: Lease Cost Three Months Ended Mar 31, 2019 In millions Operating lease cost $ 6 Short-term lease cost 7 Total lease cost $ 13 The following table provides supplemental cash flow information related to leases: Other Lease Information Three Months Ended Mar 31, 2019 In millions Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6 The following table summarizes the lease-related assets and liabilities recorded in the consolidated balance sheets at March 31, 2019: Lease Position Balance Sheet Classification Mar 31, 2019 In millions Right-of-use assets obtained in exchange for lease obligations: Operating leases 1 $ 104 Assets Operating lease assets Operating lease right-of-use assets $ 100 Finance lease assets Property 12 Finance lease amortization Accumulated depreciation (5 ) Total lease assets $ 107 Liabilities Current Operating Operating lease liabilities - current $ 18 Finance Long-term debt due within one year 1 Noncurrent Operating Operating lease liabilities - noncurrent 82 Finance Long-Term Debt 6 Total lease liabilities $ 107 1. Includes $99 million related to the adoption of Topic 842. See Note 2 for additional information. Lease Term and Discount Rate Mar 31, 2019 Weighted-average remaining lease term Operating leases 6.9 years Finance leases 5.3 years Weighted-average discount rate Operating leases 4.28 % Finance leases 4.22 % The following table provides the maturities of lease liabilities at March 31, 2019: Maturities of Lease Liabilities at Mar 31, 2019 Operating Leases Finance Leases In millions 2019 $ 16 $ 1 2020 19 1 2021 15 1 2022 14 2 2023 13 2 2024 and thereafter 37 1 Total future undiscounted lease payments $ 114 $ 8 Less imputed interest 14 1 Total present value of lease liabilities $ 100 $ 7 At March 31, 2019, the Corporation had an additional lease of approximately $5 million for a rail yard, which has not yet commenced. This lease is expected to commence in late 2019, with a lease term of 10 years . Future minimum lease payments for leases accounted for under ASC 840, "Leases," with remaining non-cancelable terms in excess of one year were as follows at December 31, 2018: Minimum Lease Commitments at Dec 31, 2018 In millions 2019 $ 18 2020 16 2021 14 2022 13 2023 13 2024 and thereafter 37 Total $ 111

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED OTHER COMPREHENSIVE LOSS The following table summarizes the changes and after-tax balances of each component of accumulated other comprehensive loss ("AOCL") for the three months ended March 31, 2019 and 2018 : Accumulated Other Comprehensive Loss Cumulative Translation Adj Pension and Other Postretire Benefits Total Accum Other Comp Loss In millions Balance at Jan 1, 2018 $ (59 ) $ (1,293 ) $ (1,352 ) Amounts reclassified from accumulated other comprehensive loss — 16 16 Net other comprehensive income $ — $ 16 $ 16 Balance at Mar 31, 2018 $ (59 ) $ (1,277 ) $ (1,336 ) Balance at Jan 1, 2019 $ (57 ) $ (1,504 ) $ (1,561 ) Amounts reclassified from accumulated other comprehensive loss — 15 15 Net other comprehensive income $ — $ 15 $ 15 Balance at Mar 31, 2019 $ (57 ) $ (1,489 ) $ (1,546 ) The tax effects on the net activity related to each component of other comprehensive loss for the three months ended March 31, 2019 and 2018 were as follows: Tax Expense 1 Three Months Ended In millions Mar 31, 2019 Mar 31, 2018 Pension and other postretirement benefit plans $ (4 ) $ (6 ) 1. Prior period amounts were updated to conform with the current year presentation. A summary of the reclassifications out of AOCL for the three months ended March 31, 2019 and 2018 is provided as follows: Reclassifications Out of Accumulated Other Comprehensive Loss Three Months Ended Consolidated Statements of Income Classification Mar 31, 2019 Mar 31, 2018 In millions Pension and other postretirement benefit plans $ 19 $ 22 See (1) below Tax benefit (4 ) (6 ) See (2) below After tax $ 15 $ 16 1. These AOCL components are included in the computation of net periodic benefit cost of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 11 for additional information. 2. "Provision for income taxes."

PENSION PLANS AND OTHER POSTRET

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS	PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS A summary of the Corporation's pension plans and other postretirement benefits can be found in Note 15 to the Consolidated Financial Statements included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2018 . The following table provides the components of the Corporation's net periodic benefit cost for all significant plans: Net Periodic Benefit Cost for All Significant Plans Three Months Ended In millions Mar 31, Mar 31, Defined Benefit Pension Plans: Service cost $ 9 $ 10 Interest cost 36 32 Expected return on plan assets (53 ) (55 ) Amortization of net loss 21 24 Net periodic benefit cost $ 13 $ 11 Other Postretirement Benefits: Interest cost $ 2 $ 2 Amortization of net gain (2 ) (2 ) Net periodic benefit cost $ — $ — Net periodic benefit cost, other than the service cost component, is included in "Sundry income (expense) - net" in the consolidated statements of income.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	3 Months Ended
	Mar. 31, 2019
Financial Instruments [Abstract]
Financial Instruments Disclosure [Text Block]	The Corporation's financial instruments are classified as Level 2 measurements. 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. The following table summarizes the fair value of the Corporation's financial instruments at March 31, 2019 and December 31, 2018 : Fair Value of Financial Instruments Mar 31, 2019 Dec 31, 2018 In millions Cost Gain Loss Fair Value Cost Gain Loss Fair Value Cash equivalents 1 $ 10 $ — $ — $ 10 $ 10 $ — $ — $ 10 Long-term debt including debt due within one year $ (474 ) $ — $ (90 ) $ (564 ) $ (474 ) $ — $ (67 ) $ (541 ) 1. Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value. Cost approximates fair value for all other financial instruments.

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	3 Months Ended
	Mar. 31, 2019
Related Party Transactions [Abstract]
RELATED PARTY TRANSACTIONS DISCLOSURE	RELATED PARTY TRANSACTIONS The Corporation sells its products to TDCC to simplify the customer interface process. Products are sold to and purchased from TDCC at market-based prices in accordance with the terms of TDCC’s intercompany pricing policies. After each quarter, the Corporation and TDCC 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 TDCC subsidiary and pays a commission to that TDCC 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 income. Purchases from that TDCC subsidiary were $334 million in the first quarter of 2019 ( $433 million in the first quarter of 2018 ). The decrease in purchase costs in the first quarter of 2019 when compared with the same period last year was due to lower feedstock and energy costs. The Corporation has a master services agreement with TDCC whereby TDCC 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 TDCC, general administrative and overhead type services that TDCC 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 $6 million in the first quarter of 2019 ( $7 million in the first quarter of 2018 ) for general administrative and overhead type services and the 10 percent service fee, included in "Sundry income (expense) - net" in the consolidated statements of income. The remaining activity-based costs were $23 million in the first quarter of 2019 ( $22 million in the first quarter of 2018 ), and were included in "Cost of sales" in the consolidated statements of income. Management believes the method used for determining expenses charged by TDCC is reasonable. TDCC 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 TDCC’s risk management philosophy, are provided as a service to UCC. As part of TDCC’s cash management process, UCC is a party to revolving loans with TDCC that have interest rates based on LIBOR (London Interbank Offered Rate) with varying maturities. At March 31, 2019 , the Corporation had a note receivable of $1.4 billion ( $1.3 billion at December 31, 2018 ) from TDCC 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 TDCC that allows the Corporation to borrow or obtain credit enhancements up to an aggregate of $1 billion that matures on December 30, 2019. TDCC 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, with cash collateral. At March 31, 2019 , $949 million was available under the revolving credit agreement ( $949 million at December 31, 2018 ). The cash collateral is reported as “Noncurrent receivables from related companies” in the consolidated balance sheets. On a quarterly basis, the Corporation's board of directors reviews and determines if there will be a dividend distribution to its parent company and sole shareholder, TDCC. The Board takes into consideration the level of earnings and cash flows, among other factors, in determining the amount of the dividend distribution. In the first quarter of 2019 , the Corporation declared and paid a cash dividend of $160 million to TDCC. In the first quarter of 2018 , the Corporation declared and paid a cash dividend of $111 million to TDCC. Also, in the first quarter of 2019 , in anticipation of the business separation activities to align the specialty products business with DowDuPont, UCC issued a stock dividend to TDCC for 63.4 percent of its ownership in DIHC, a cost method investment, which totaled $401 million . UCC also distributed assets and liabilities aligned with the specialty products business for an additional dividend to TDCC of $71 million . See Note 3 for additional information.

CONSOLIDATED FINANCIAL STATEM_2

CONSOLIDATED FINANCIAL STATEMENTS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]	Adoption of Accounting Standards In the first quarter of 2019, UCC adopted Accounting Standards Update ("ASU") 2016-02, "Leases (Topic 842)," and associated ASUs related to Topic 842. See Notes 2 and 9 for additional information. UCC added a significant accounting policy for leases as a result of the adoption of Topic 842:
Lessee, Leases [Policy Text Block]	Leases UCC determines whether a contract contains a lease at contract inception. A contract contains a lease if there is an identified asset and the Corporation has the right to control the asset. Operating lease right-of-use (“ROU”) assets represent UCC’s right to use an underlying asset for the lease term, and lease liabilities represent UCC’s obligation to make lease payments arising from the lease. Operating lease ROU assets and lease liabilities are recognized at commencement date based on the present value of lease payments over the lease term. UCC uses the incremental borrowing rate (“IBR”) in determining the present value of lease payments, unless the implicit rate is readily determinable. If lease terms include options to extend or terminate the lease, the ROU asset and lease liability are measured based on the reasonably certain decision. Leases with a term of 12 months or less at the commencement date are not recognized on the balance sheet and are expensed as incurred. UCC has lease agreements with lease and non-lease components, which are accounted for as a single lease component for all classes of leased assets for which UCC is the lessee. Additionally, for certain equipment leases, the portfolio approach is applied to account for the operating lease ROU assets and lease liabilities. In the consolidated statements of income, lease expense for operating lease payments is recognized on a straight-line basis over the lease term. For finance leases, interest expense is recognized on the lease liability and the ROU asset is amortized over the lease term. Some leasing arrangements require variable payments that are dependent upon usage or output, or may vary for other reasons, such as insurance or tax payments. Variable lease payments are recognized as incurred and are not presented as part of the ROU asset or lease liability.

INVENTORIES (Tables)

INVENTORIES (Tables)	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	The following table provides a breakdown of inventories: Inventories Mar 31, Dec 31, In millions Finished goods $ 241 $ 264 Work in process 43 45 Raw materials 40 45 Supplies 86 85 Total $ 410 $ 439 Adjustment of inventories to a LIFO basis (108 ) (135 ) Total inventories $ 302 $ 304

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets	The following table provides information regarding the Corporation’s intangible assets: Intangible Assets Mar 31, 2019 Dec 31, 2018 In millions Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Intangible assets with finite lives: Licenses and developed technology $ 33 $ (33 ) $ — $ 33 $ (33 ) $ — Software 77 (53 ) 24 79 (54 ) 25 Total intangible assets $ 110 $ (86 ) $ 24 $ 112 $ (87 ) $ 25
Schedule of Expected Amortization Expense [Table Text Block]	Total estimated amortization expense for 2019 and the five succeeding fiscal years is as follows: Estimated Amortization Expense In millions 2019 $ 8 2020 $ 8 2021 $ 6 2022 $ 4 2023 $ 2 2024 $ —

LEASES (Tables)

LEASES (Tables)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Leases [Abstract]
Lease, Cost [Table Text Block]	Lease Cost Three Months Ended Mar 31, 2019 In millions Operating lease cost $ 6 Short-term lease cost 7 Total lease cost $ 13
Schedule of Supplemental Cash Flow Information Related to Leases [Table Text Block]	Other Lease Information Three Months Ended Mar 31, 2019 In millions Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6
Schedule of Lease Assets and Liabilities [Table Text Block]	The following table summarizes the lease-related assets and liabilities recorded in the consolidated balance sheets at March 31, 2019: Lease Position Balance Sheet Classification Mar 31, 2019 In millions Right-of-use assets obtained in exchange for lease obligations: Operating leases 1 $ 104 Assets Operating lease assets Operating lease right-of-use assets $ 100 Finance lease assets Property 12 Finance lease amortization Accumulated depreciation (5 ) Total lease assets $ 107 Liabilities Current Operating Operating lease liabilities - current $ 18 Finance Long-term debt due within one year 1 Noncurrent Operating Operating lease liabilities - noncurrent 82 Finance Long-Term Debt 6 Total lease liabilities $ 107 1. Includes $99 million related to the adoption of Topic 842. See Note 2 for additional information.
Lease Terms and Discount Rates [Table Text Block]	Lease Term and Discount Rate Mar 31, 2019 Weighted-average remaining lease term Operating leases 6.9 years Finance leases 5.3 years Weighted-average discount rate Operating leases 4.28 % Finance leases 4.22 %
Maturities of Lease Liabilities [Table Text Block]	The following table provides the maturities of lease liabilities at March 31, 2019: Maturities of Lease Liabilities at Mar 31, 2019 Operating Leases Finance Leases In millions 2019 $ 16 $ 1 2020 19 1 2021 15 1 2022 14 2 2023 13 2 2024 and thereafter 37 1 Total future undiscounted lease payments $ 114 $ 8 Less imputed interest 14 1 Total present value of lease liabilities $ 100 $ 7
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]		Future minimum lease payments for leases accounted for under ASC 840, "Leases," with remaining non-cancelable terms in excess of one year were as follows at December 31, 2018: Minimum Lease Commitments at Dec 31, 2018 In millions 2019 $ 18 2020 16 2021 14 2022 13 2023 13 2024 and thereafter 37 Total $ 111

ACCUMULATED OTHER COMPREHENSI_2

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Components of Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Loss Cumulative Translation Adj Pension and Other Postretire Benefits Total Accum Other Comp Loss In millions Balance at Jan 1, 2018 $ (59 ) $ (1,293 ) $ (1,352 ) Amounts reclassified from accumulated other comprehensive loss — 16 16 Net other comprehensive income $ — $ 16 $ 16 Balance at Mar 31, 2018 $ (59 ) $ (1,277 ) $ (1,336 ) Balance at Jan 1, 2019 $ (57 ) $ (1,504 ) $ (1,561 ) Amounts reclassified from accumulated other comprehensive loss — 15 15 Net other comprehensive income $ — $ 15 $ 15 Balance at Mar 31, 2019 $ (57 ) $ (1,489 ) $ (1,546 ) The tax effects on the net activity related to each component of other comprehensive loss for the three months ended March 31, 2019 and 2018 were as follows: Tax Expense 1 Three Months Ended In millions Mar 31, 2019 Mar 31, 2018 Pension and other postretirement benefit plans $ (4 ) $ (6 )
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income	Reclassifications Out of Accumulated Other Comprehensive Loss Three Months Ended Consolidated Statements of Income Classification Mar 31, 2019 Mar 31, 2018 In millions Pension and other postretirement benefit plans $ 19 $ 22 See (1) below Tax benefit (4 ) (6 ) See (2) below After tax $ 15 $ 16 1. These AOCL components are included in the computation of net periodic benefit cost of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 11 for additional information. 2. "Provision for income taxes."

PENSION PLANS AND OTHER POSTR_2

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)	3 Months Ended
	Mar. 31, 2019
Retirement Benefits [Abstract]
Net Periodic Benefit Cost for All Significant Plans	Net Periodic Benefit Cost for All Significant Plans Three Months Ended In millions Mar 31, Mar 31, Defined Benefit Pension Plans: Service cost $ 9 $ 10 Interest cost 36 32 Expected return on plan assets (53 ) (55 ) Amortization of net loss 21 24 Net periodic benefit cost $ 13 $ 11 Other Postretirement Benefits: Interest cost $ 2 $ 2 Amortization of net gain (2 ) (2 ) Net periodic benefit cost $ — $ —

FAIR VALUE MEASUREMENTS FAIR VA

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Tables)	3 Months Ended
	Mar. 31, 2019
Financial Instruments [Abstract]
Fair Value, by Balance Sheet Grouping [Table Text Block]	Fair Value of Financial Instruments Mar 31, 2019 Dec 31, 2018 In millions Cost Gain Loss Fair Value Cost Gain Loss Fair Value Cash equivalents 1 $ 10 $ — $ — $ 10 $ 10 $ — $ — $ 10 Long-term debt including debt due within one year $ (474 ) $ — $ (90 ) $ (564 ) $ (474 ) $ — $ (67 ) $ (541 ) 1. Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value.

RECENT ACCOUNTING GUIDANCE ADOP

RECENT ACCOUNTING GUIDANCE ADOPTION OF NEW ACCOUNTING GUIDANCE (Details) - USD ($) $ in Millions	Jan. 01, 2019	Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 99	$ 104

MERGER WITH DUPONT AND BUSINE_2

MERGER WITH DUPONT AND BUSINESS SEPARATION (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Feb. 15, 2019
Dow International Holdings Company [Member]
Related Party Transaction [Line Items]
Common Stock, Related Company		1,067
Ownership Interest Percentage, Related Company	4.40%	11.90%
The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Dividends, Paid-in-kind	$ 71
The Dow Chemical Company [Member] | Dow International Holdings Company [Member]
Related Party Transaction [Line Items]
Ownership Interest Percentage, Related Company		88.10%
Dividends, Common Stock, Stock	$ 401

Revenue from Contract with Cu_2

Revenue from Contract with Customer (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Revenue from External Customer [Line Items]
Contract with Customer, Liability, Noncurrent	$ 41	$ 41
Revenue, Performance Obligation, Description of Timing	22
Product [Member]
Revenue from External Customer [Line Items]
Revenue, Percentage from Products and Services Transferred to Customers	98.00%		98.00%
Licensing of Technology [Member]
Revenue from External Customer [Line Items]
Revenue, Percentage from Products and Services Transferred to Customers	2.00%		2.00%

Restructuring and Asset Relat_2

Restructuring and Asset Related Charges - Net (Details) - USD ($) $ in Millions	3 Months Ended		19 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net	$ 1	$ 1
2017 Restructuring [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring			$ (10)
Restructuring Reserve	4		4
Restructuring and asset related charges - net	$ 1	$ 1
2017 Restructuring [Member] | Impairment of Long-Lived Assets and Other Assets [Member]
Restructuring Cost and Reserve [Line Items]
Asset Impairment Charges			62
2017 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			76
2017 Restructuring [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and asset related charges - net			$ 14

INVENTORIES (Schedule of Invent

INVENTORIES (Schedule of Inventories) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Finished goods	$ 241	$ 264
Work in process	43	45
Raw materials	40	45
Supplies	86	85
Total	410	439
Adjustment of inventories to a LIFO basis	(108)	(135)
Total inventories	$ 302	$ 304

INTANGIBLE ASSETS (Schedule of

INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 110	$ 112
Finite-Lived Intangible Assets, Accumulated Amortization	(86)	(87)
Finite-Lived Intangible Assets, Net	24	25
Licenses and developed technology [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	77	79
Finite-Lived Intangible Assets, Accumulated Amortization	(53)	(54)
Finite-Lived Intangible Assets, Net	$ 24	$ 25

INTANGIBLE ASSETS (Schedule o_2

INTANGIBLE ASSETS (Schedule of Future Amortization Expense of Intangible Assets) (Details) $ in Millions	Mar. 31, 2019USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Estimated Amortization Expense, 2019	$ 8
Estimated Amortization Expense, 2020	8
Estimated Amortization Expense, 2021	6
Estimated Amortization Expense, 2022	4
Estimated Amortization Expense, 2023	2
Estimated Amortization Expense, 2024	$ 0

COMMITMENTS AND CONTINGENT LI_2

COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies		$ 100	$ 94
Super Fund Sites [Member]
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies		$ 18	$ 16
Subsequent Event [Member]
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies, Revision in Estimates	$ 50

COMMITMENTS AND CONTINGENT LI_3

COMMITMENTS AND CONTINGENT LIABILITIES (Asbestos-Related Matters of Union Carbide Corporation) (Table and Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Liability for Asbestos Claims and Defense Costs Gross	$ 1,243	$ 1,260
Percentage of recorded asbestos liability related to pending claims	17.00%
Percentage of recorded asbestos liability related to future claims	83.00%

LEASES (Details)

LEASES (Details) - USD ($) $ in Millions	Jan. 01, 2019	Mar. 31, 2019	Dec. 31, 2018
Operating Lease, Expense		$ 6
Short-term Lease, Cost		7
Lease, Cost		13
Operating Lease, Payments		6
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 99	104
Operating lease right-of-use assets		100	$ 0
Finance Lease, Right-of-Use Asset		12
Finance Lease, Right-of-Use Asset, Amortization		5
Total Lease Assets		107
Operating lease liabilities - current		18	0
Finance Lease, Liability, Current		1
Operating lease liabilities - noncurrent		82	0
Finance Lease, Liability, Noncurrent		6
Total Lease Liabilities		$ 107
Operating Lease, Weighted Average Remaining Lease Term		6 years 11 months
Finance Lease, Weighted Average Remaining Lease Term		5 years 3 months
Operating Lease, Weighted Average Discount Rate, Percent		4.28%
Finance Lease, Weighted Average Discount Rate, Percent		4.22%
Lessee, Operating Lease, Liability, Payments, Remainder of 2019		$ 16
Finance Lease, Liability, Payments, Due 2019		1
Lessee, Operating Lease, Liability, Payments, Due 2020		19
Finance Lease, Liability, Payments, Due 2020		1
Lessee, Operating Lease, Liability, Payments, Due 2021		15
Finance Lease, Liability, Payments, Due 2021		1
Lessee, Operating Lease, Liability, Payments, Due 2022		14
Finance Lease, Liability, Payments, Due 2022		2
Lessee, Operating Lease, Liability, Payments, Due 2023		13
Finance Lease, Liability, Payments, Due 2023		2
Lessee, Operating Lease, Liability, Payments, Due 2024 and thereafter		37
Finance Lease, Liability, Payments, Due 2024 and thereafter		1
Lessee, Operating Lease, Liability, Payments, Due		114
Finance Lease, Liability, Payments, Due		8
Lessee, Operating Lease, Liability, Undiscounted Excess Amount		14
Finance Lease, Liability, Undiscounted Excess Amount		1
Operating Lease, Liability		100
Finance Lease, Liability		7
Lessee, Additional Leases Not yet Commenced, Assumptions and Judgment, Amount		$ 5
Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract		10 years
Lessee, Operating Lease, Liability, Payments, Due 2019			18
Operating Leases, Future Minimum Payments, Due 2020			16
Operating Leases, Future Minimum Payments, Due 2021			14
Operating Leases, Future Minimum Payments, Due 2022			13
Operating Leases, Future Minimum Payments, Due 2023			13
Operating Leases, Future Minimum Payments, Due 2024 and thereafter			37
Operating Leases, Future Minimum Payments Due			$ 111
Minimum [Member]
Lessee, Operating and Finance Leases, Remaining Lease Term		1 year
Maximum [Member]
Lessee, Operating and Finance Leases, Remaining Lease Term		11 years

ACCUMULATED OTHER COMPREHENSI_3

ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 15	$ 16
Accumulated Other Comprehensive Income (Loss) [Line Items]
Union Carbide Corporation's stockholder's equity	1,543	1,438	$ 1,915
Other Comprehensive Income (Loss), Net of Tax	15	16
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Union Carbide Corporation's stockholder's equity	(1,546)	(1,336)	(1,561)	$ (1,352)
Other Comprehensive Income (Loss), Net of Tax	15	16
Cumulative translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Accumulated Other Comprehensive Income (Loss) [Line Items]
Union Carbide Corporation's stockholder's equity	(57)	(59)	(57)	(59)
Other Comprehensive Income (Loss), Net of Tax	0	0
Pension and other postretirement benefits
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	15	16
Accumulated Other Comprehensive Income (Loss) [Line Items]
Union Carbide Corporation's stockholder's equity	(1,489)	(1,277)	$ (1,504)	$ (1,293)
Other Comprehensive Income (Loss), Net of Tax	15	16
Other Comprehensive Income (Loss), Tax	(4)	(6)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and other postretirement benefits
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	19	22
Reclassification from AOCI, Current Period, Tax	(4)	(6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 15	$ 16

PENSION PLANS AND OTHER POSTR_3

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Defined Benefit Pension Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 9	$ 10
Interest cost	36	32
Expected return on plan assets	(53)	(55)
Amortization of net (gain) loss	21	24
Net periodic benefit cost	13	11
Other Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Interest cost	2	2
Amortization of net (gain) loss	(2)	(2)
Net periodic benefit cost	$ 0	$ 0

FAIR VALUE MEASUREMENTS FAIR _2

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Long-term Debt	$ (474)	$ (474)
Long-term Debt, Fair Value	(564)	(541)
Long-term Debt [Member]
Debt Securities, Available-for-sale [Line Items]
Financial Instruments Gross Unrealized Gains	0	0
Financial Instruments Gross Unrealized Loss	(90)	(67)
Money Market Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Cash Equivalents, at Carrying Value	10	10
Financial Instruments Gross Unrealized Gains	0	0
Financial Instruments Gross Unrealized Loss	0	0
Cash Equivalents, Fair Value	$ 10	$ 10

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Feb. 15, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Payments of Dividends	$ 160	$ 111
The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 334	433
Service Fee with Parent	10.00%
Notes Receivable, Related Parties	$ 1,400			$ 1,300
Line of Credit Facility, Maximum Borrowing Capacity	1,000
Line of Credit Facility, Remaining Borrowing Capacity	949			$ 949
Payments of Dividends	160	111
Dividends, Paid-in-kind	71
The Dow Chemical Company [Member] | Sundry income (expense) [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	6	7
The Dow Chemical Company [Member] | Cost of Sales [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 23	$ 22
Dow International Holdings Company [Member]
Related Party Transaction [Line Items]
Stock Dividend Ownership Interest Percentage, Related Company			63.40%
Ownership Interest Percentage, Related Company	4.40%		11.90%
The Dow Chemical Company [Member] | Dow International Holdings Company [Member]
Related Party Transaction [Line Items]
Ownership Interest Percentage, Related Company			88.10%
Dividends, Common Stock, Stock	$ 401