Dow Chemical 10-Q 3 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2018shares
Document and Entity Information [Abstract]
Entity Registrant Name	DOW CHEMICAL CO /DE/
Entity Central Index Key	29,915
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding	100

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 15,793	$ 13,834	$ 30,692	$ 27,064
Cost of sales	12,400	10,761	23,952	20,955
Research and development expenses	407	408	793	827
Selling, general and administrative expenses	748	720	1,499	1,479
Amortization of intangibles	155	157	314	312
Restructuring and asset related charges (credits) - net	98	(12)	263	(13)
Integration and separation costs	231	136	433	245
Equity in earnings of nonconsolidated affiliates	231	54	474	250
Sundry income (expense) - net	5	322	88	(122)
Interest expense and amortization of debt discount	274	226	544	445
Income before income taxes	1,716	1,814	3,456	2,942
Provision for income taxes	406	455	769	668
Net income	1,310	1,359	2,687	2,274
Net income attributable to noncontrolling interests	31	38	66	65
Net income available for The Dow Chemical Company common stockholder	1,279	1,321	2,621	2,209
Depreciation	606	534	1,227	1,112
Capital expenditures	$ 564	$ 795	$ 987	$ 1,549

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 1,310	$ 1,359	$ 2,687	$ 2,274
Other comprehensive income (loss), net of tax
Unrealized gains (losses) on investments	(14)	(9)	(39)	8
Cumulative translation adjustments	(470)	387	(94)	626
Pension and other postretirement benefit plans	124	101	250	203
Derivative instruments	118	(39)	124	(89)
Total other comprehensive income (loss)	(242)	440	241	748
Comprehensive income	1,068	1,799	2,928	3,022
Comprehensive income (loss) attributable to noncontrolling interests, net of tax	(1)	40	27	93
Comprehensive income attributable to The Dow Chemical Company	$ 1,069	$ 1,759	$ 2,901	$ 2,929

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents (variable interest entities restricted - 2018: $116; 2017: $107)	$ 4,823	$ 6,188
Marketable securities	133	4
Accounts and notes receivable:
Trade (net of allowance for doubtful receivables - 2018: $125; 2017: $117)	8,951	7,338
Other	4,135	4,711
Inventories	9,346	8,376
Other current assets	898	627
Total current assets	28,286	27,244
Investments
Investment in nonconsolidated affiliates	3,755	3,742
Other investments (investments carried at fair value - 2018: $1,720; 2017: $1,512)	2,488	2,510
Noncurrent receivables	489	594
Total investments	6,732	6,846
Property
Property	60,761	60,426
Less accumulated depreciation	37,369	36,614
Net property (variable interest entities restricted - 2018: $786; 2017: $907)	23,392	23,812
Other Assets
Goodwill	13,894	13,938
Other intangible assets (net of accumulated amortization - 2018: $5,424; 2017: $5,161)	5,236	5,549
Deferred income tax assets	1,672	1,722
Deferred charges and other assets	1,009	829
Total other assets	21,811	22,038
Total Assets	80,221	79,940
Current Liabilities
Notes payable	862	484
Long-term debt due within one year	2,837	752
Accounts payable:
Trade	5,224	5,360
Other	3,939	3,062
Income taxes payable	736	694
Accrued and other current liabilities	3,294	4,025
Total current liabilities	16,892	14,377
Long-Term Debt (variable interest entities nonrecourse - 2018: $147; 2017: $249)	17,122	19,765
Other Noncurrent Liabilities
Deferred income tax liabilities	776	764
Pension and other postretirement benefits - noncurrent	10,305	10,794
Asbestos-related liabilities - noncurrent	1,179	1,237
Other noncurrent obligations	5,930	5,994
Total other noncurrent liabilities	18,190	18,789
Stockholders’ Equity
Common stock (authorized and issued 100 shares of $0.01 par value each)	0	0
Additional paid-in capital	6,861	6,553
Retained earnings	29,536	28,050
Accumulated other comprehensive loss	(9,387)	(8,591)
Unearned ESOP shares	(145)	(189)
The Dow Chemical Company’s stockholders’ equity	26,865	25,823
Noncontrolling interests	1,152	1,186
Total equity	28,017	27,009
Total Liabilities and Equity	$ 80,221	$ 79,940

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Trade (allowance for doubtful receivables)	$ 125	$ 117
Other investments (investments carried at fair value)	1,720	1,512
Other intangible assets (accumulated amortization)	$ 5,424	$ 5,161
Common Stock, Shares Authorized	100	100
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares, Issued	100	100
Treasury Stock, Shares	0	0
Cash and cash equivalents | Variable Interest Entity, Primary Beneficiary [Member]
Cash and cash equivalents (variable interest entities restricted)	$ 116	$ 107
Property, Plant and Equipment [Member] | Variable Interest Entity, Primary Beneficiary [Member]
Net property (variable interest entities restricted)	786	907
Long-term debt | Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Consolidated, Liabilities, Noncurrent	$ 147	249
Long Term Debt (variable interest entities nonrecourse)		$ 249

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net income	$ 2,687	$ 2,274
Adjustments to reconcile net income to net cash used for operating activities:
Depreciation and amortization	1,666	1,517
Credit for deferred income tax	(102)	40
Earnings of nonconsolidated affiliates less than dividends received	123	310
Net periodic pension benefit cost	219	219
Pension contributions	(377)	(381)
Net gain on sales of assets, businesses and investments	(54)	(190)
Business combination, step acquisition, equity interest in Acquiree, Remeasurement Gain(Loss), Post Closing Adjustments	41	0
Restructuring and asset related charges (credits) - net	263	(13)
Other net loss	249	252
Changes in assets and liabilities, net of effects of acquired and divested companies:
Accounts and notes receivable	(1,800)	(3,233)
Inventories	(1,011)	(839)
Accounts payable	792	826
Other assets and liabilities, net	(1,146)	(883)
Cash provided by (used for) operating activities	1,550	(101)
Investing Activities
Capital expenditures	(987)	(1,549)
Investment in gas field developments	(46)	(68)
Proceeds from sales of property and businesses, net of cash divested	48	215
Investments in and loans to nonconsolidated affiliates	(2)	(484)
Distributions and loan repayments from nonconsolidated affiliates	55	54
Proceeds from sale of ownership interests in nonconsolidated affiliates	0	54
Purchases of investments	(900)	(379)
Proceeds from sales and maturities of investments	752	435
Proceeds from interests in trade accounts receivable conduits	656	1,914
Cash provided by (used for) investing activities	(424)	192
Financing Activities
Changes in short-term notes payable	346	288
Payments on long-term debt	(570)	(105)
Proceeds from issuance of parent company stock	85	0
Proceeds from sales of common stock	0	357
Employee taxes paid for share-based payment arrangements	(84)	(85)
Contingent payment for acquisition of businesses	0	(31)
Distributions to noncontrolling interests	(67)	(51)
Dividends paid to stockholders	0	(1,063)
Dividends paid to parent	(2,110)	0
Other financing activities, net	3	0
Cash used for financing activities	(2,397)	(690)
Summary
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(68)	208
Decrease in cash, cash equivalents and restricted cash	(1,339)	(391)
Cash, cash equivalents and restricted cash at beginning of period	6,207	6,624
Cash, cash equivalents and restricted cash at end of period	$ 4,868	$ 6,233

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss	Unearned ESOP Shares [Member]	Treasury Stock [Member]	Noncontrolling Interests
Total Equity, Beginning at Dec. 31, 2016	$ 27,229	$ 3,107	$ 4,262	$ 30,338	$ (9,822)	$ (239)	$ (1,659)	$ 1,242
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income available for The Dow Chemical Company common stockholder	2,209			2,209
Other comprehensive income	748				748
Dividends to parent	(1,115)			(1,115)
Common stock issued / sold	983		357				626
Stock-based compensation and allocation of ESOP shares	(374)		(415)			41
Impact of noncontrolling interests	(74)							(74)
Other	(17)		(2)	15
Total Equity, Ending at Jun. 30, 2017	29,589	3,107	4,202	31,417	(9,074)	(198)	(1,033)	1,168
Total Equity, Beginning at Dec. 31, 2017	27,009	0	6,553	28,050	(8,591)	(189)	0	1,186
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income available for The Dow Chemical Company common stockholder	2,621			2,621
Other comprehensive income	241				241
Dividends to parent	(2,110)			(2,110)
Issuance of parent company stock	85		85
Stock-based compensation and allocation of ESOP shares	267		223			44
Impact of noncontrolling interests	(34)							(34)
Other	(14)		0	14
Total Equity, Ending at Jun. 30, 2018	$ 28,017	$ 0	$ 6,861	$ 29,536	$ (9,387)	$ (145)	$ 0	$ 1,152

CONSOLIDATED FINANCIAL STATEMEN

CONSOLIDATED FINANCIAL STATEMENTS	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
CONSOLIDATED FINANCIAL STATEMENTS	CONSOLIDATED FINANCIAL STATEMENTS Basis of Presentation The unaudited interim consolidated financial statements of The Dow Chemical Company and its subsidiaries (“Dow” or the “Company”) 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 Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . 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, Dow and E. I. du Pont de Nemours and Company ("DuPont") each merged with subsidiaries of DowDuPont Inc. ("DowDuPont") and, as a result, Dow and DuPont became subsidiaries of DowDuPont (the "Merger"). 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. Following the Merger, Dow and DuPont intend to pursue, subject to certain customary conditions, including, among others, the effectiveness of registration statements filed with the U.S. Securities and Exchange Commission and approval by the board of directors of DowDuPont, the separation of the combined company's agriculture, materials science and specialty products businesses through one or more tax-efficient transactions ("Intended Business Separations"). Beginning September 1, 2017, transactions between DowDuPont, Dow and DuPont and their affiliates are reflected in these consolidated financial statements and will be disclosed as related party transactions, when material. Transactions between Dow and DuPont primarily consist of the sale and procurement of certain feedstocks, energy and raw materials that are consumed in each company's manufacturing process. See Note 19 for additional information. Effective with the Merger, Dow’s business activities are components of its parent company’s business operations. Dow’s business activities, including the assessment of performance and allocation of resources, are reviewed and managed by DowDuPont. Information used by the chief operating decision maker of Dow relates to the Company in its entirety. Accordingly, there are no separate reportable business segments for the Company under Accounting Standards Codification ("ASC") Topic 280 “Segment Reporting” and the Company’s business results are reported in this Form 10-Q as a single operating segment. Except as otherwise indicated by the context, the term "Union Carbide" means Union Carbide Corporation, a wholly owned subsidiary of Dow, and "Dow Silicones" means Dow Silicones Corporation (formerly known as Dow Corning Corporation, which changed its name effective as of February 1, 2018), a wholly owned subsidiary of Dow. Changes to Prior Period Consolidated Financial Statements As a result of the Merger, certain reclassifications of prior period amounts have been made to improve comparability with DowDuPont and conform with the current period presentation. Presentation changes were made to the consolidated statements of income, consolidated statements of cash flows and consolidated statements of equity. In addition, certain reclassifications of prior period data have been made in the Notes to the Consolidated Financial Statements to conform with the current period presentation. In the first quarter of 2018, the Company adopted new accounting standards that required retrospective application. The Company updated the consolidated statements of income as a result of adopting Accounting Standards Update ("ASU") 2017-07, "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." The consolidated statements of cash flows were updated as a result of adopting ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" and ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash." See Note 2 for additional information. Changes to the consolidated financial statements as a result of the Merger and the retrospective application of the new accounting standards are summarized as follows: Summary of Changes to the Consolidated Statements of Income Three Months Ended Jun 30, 2017 In millions As Filed Merger Reclass 1 ASU Impact 2 Updated Cost of sales $ 10,764 $ (1 ) $ (2 ) $ 10,761 Research and development expenses $ 405 $ — $ 3 $ 408 Selling, general and administrative expenses $ 855 $ (135 ) $ — $ 720 Integration and separation costs $ — $ 136 $ — $ 136 Sundry income (expense) - net $ 299 $ 22 $ 1 $ 322 Interest income $ 22 $ (22 ) $ — $ — Summary of Changes to the Consolidated Statements of Income Six Months Ended Jun 30, 2017 In millions As Filed Merger Reclass 1 ASU Impact 2 Updated Cost of sales $ 20,961 $ (1 ) $ (5 ) $ 20,955 Research and development expenses $ 821 $ — $ 6 $ 827 Selling, general and administrative expenses $ 1,722 $ (244 ) $ 1 $ 1,479 Integration and separation costs $ — $ 245 $ — $ 245 Sundry income (expense) - net $ (171 ) $ 47 $ 2 $ (122 ) Interest income $ 47 $ (47 ) $ — $ — 1. Costs associated with integration and separation activities are now separately reported as “Integration and separation costs” and were reclassified from "Cost of sales" and “Selling, general and administrative expenses.” In addition, “Interest income” was reclassified to “Sundry income (expense) - net.” 2. Reflects changes resulting from the adoption of ASU 2017-07. See Note 2 for additional information. Summary of Changes to the Consolidated Statements of Cash Flows Six Months Ended Jun 30, 2017 In millions As Filed Merger Reclass ASU Impact 1 Updated Operating Activities Net periodic pension benefit cost $ — $ 219 $ — $ 219 Net gain on sales of assets, businesses and investments $ — $ (190 ) $ — $ (190 ) Net gain on sales of investments $ (53 ) $ 53 $ — $ — Net gain on sales of property, businesses and consolidated companies $ (135 ) $ 135 $ — $ — Net gain on sale of ownership interests in nonconsolidated affiliates $ (2 ) $ 2 $ — $ — Other net loss $ 75 $ 177 $ — $ 252 Proceeds from interests in trade accounts receivable conduits $ 804 $ — $ (804 ) $ — Accounts and notes receivable $ (2,123 ) $ — $ (1,110 ) $ (3,233 ) Accounts payable $ 620 $ 206 $ — $ 826 Other assets and liabilities, net $ (279 ) $ (602 ) $ (2 ) $ (883 ) Cash provided by (used for) operating activities $ 1,815 $ — $ (1,916 ) $ (101 ) Investing Activities Payment into escrow account $ (130 ) $ — $ 130 $ — Distribution from escrow account $ 130 $ — $ (130 ) $ — Acquisitions of property, businesses and consolidated companies, net of cash acquired $ (31 ) $ — $ 31 $ — Proceeds from interests in trade accounts receivable conduits $ — $ — $ 1,914 $ 1,914 Cash provided by (used for) investing activities $ (1,753 ) $ — $ 1,945 $ 192 Financing Activities Contingent payment for acquisition of businesses $ — $ — $ (31 ) $ (31 ) Cash used for financing activities $ (659 ) $ — $ (31 ) $ (690 ) Summary Decrease in cash, cash equivalents and restricted cash $ (389 ) $ — $ (2 ) $ (391 ) Cash, cash equivalents and restricted cash at beginning of period $ 6,607 $ — $ 17 $ 6,624 Cash, cash equivalents and restricted cash at end of period $ 6,218 $ — $ 15 $ 6,233 1. Reflects the adoption of ASU 2016-15 and ASU 2016-18. See Note 2 for additional information. In connection with the review and implementation of ASU 2016-15, the Company also changed the prior year value of “Proceeds from interests in trade accounts receivable conduits” due to additional interpretive guidance of the required method for calculating the cash received from beneficial interests in the conduits. Summary of Changes to the Consolidated Statements of Equity Six Months Ended Jun 30, 2017 In millions As Filed Merger Reclass Updated Dividend equivalents on participating securities $ (15 ) $ 15 $ — Other $ — $ (15 ) $ (15 ) Opening Balance Sheet Impact of Accounting Standards Adoption In the first quarter of 2018, the Company adopted ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)" and the associated ASUs (collectively, "Topic 606"), ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities" and ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory." See Note 2 for additional information on these ASUs. The cumulative effect on the Company's January 1, 2018, consolidated balance sheet as a result of adopting these accounting standards is summarized in the following table: Summary of Impacts to the Consolidated Balance Sheet Dec 31, 2017 Adjustments due to: Jan 1, 2018 In millions As Filed Topic 606 ASU 2016-01 ASU 2016-16 Updated Assets Inventories $ 8,376 $ (11 ) $ — $ — $ 8,365 Other current assets $ 627 $ 29 $ — $ 31 $ 687 Total current assets $ 27,244 $ 18 $ — $ 31 $ 27,293 Deferred income tax assets $ 1,722 $ 25 $ — $ 10 $ 1,757 Deferred charges and other assets $ 829 $ 43 $ — $ — $ 872 Total other assets $ 22,038 $ 68 $ — $ 10 $ 22,116 Total Assets $ 79,940 $ 86 $ — $ 41 $ 80,067 Liabilities Accounts payable - Other $ 3,062 $ 10 $ — $ — $ 3,072 Income taxes payable $ 694 $ (2 ) $ — $ — $ 692 Accrued and other current liabilities $ 4,025 $ 50 $ — $ — $ 4,075 Total current liabilities $ 14,377 $ 58 $ — $ — $ 14,435 Other noncurrent obligations $ 5,994 $ 117 $ — $ — $ 6,111 Total other noncurrent liabilities $ 18,789 $ 117 $ — $ — $ 18,906 Stockholders' Equity Retained earnings $ 28,050 $ (89 ) $ (20 ) $ 41 $ 27,982 Accumulated other comprehensive loss $ (8,591 ) $ — $ 20 $ — $ (8,571 ) The Dow Chemical Company's stockholders' equity $ 25,823 $ (89 ) $ — $ 41 $ 25,775 Total equity $ 27,009 $ (89 ) $ — $ 41 $ 26,961 Total Liabilities and Equity $ 79,940 $ 86 $ — $ 41 $ 80,067 The most significant changes as a result of adopting Topic 606 relate to the Company's contract liabilities which includes payments received in advance of performance. Contract liabilities, which are included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets, increased as certain performance obligations, which were previously recognized over time and related to the licensing of certain rights to patents and technology, as well as other performance obligations, are now recognized at a point in time as none of the three criteria for 'over time' recognition under Topic 606 are met. In the second quarter of 2018, the Company early adopted ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income." This standard was adopted on April 1, 2018, and resulted in a $1,057 million increase to retained earnings due to the reclassification from accumulated other comprehensive loss. The reclassification was primarily related to the change in the federal corporate tax rate and the effect of the Tax Cuts and Jobs Act of 2017 ("The Act") on the Company's pension plans, derivative instruments, available-for-sale securities and cumulative translation adjustments. This reclassification is reflected in the "Adoption of accounting standards" line in the consolidated statements of equity. See Note 2 for additional information. Current Period Impact of Topic 606 The following table summarizes the effects of adopting Topic 606 on the Company's consolidated balance sheets, which was applied prospectively to contracts not completed at January 1, 2018. The effect of adopting Topic 606 did not have a material impact on the consolidated statements of income and the consolidated statements of cash flows. Summary of Impacts to the Consolidated Balance Sheets As Reported at Jun 30, 2018 Adjustments Balance at Jun 30, 2018 Excluding Adoption of Topic 606 In millions Assets Inventories $ 9,346 $ 24 $ 9,370 Other current assets $ 898 $ (36 ) $ 862 Total current assets $ 28,286 $ (12 ) $ 28,274 Deferred income tax assets $ 1,672 $ (27 ) $ 1,645 Deferred charges and other assets $ 1,009 $ (43 ) $ 966 Total other assets $ 21,811 $ (70 ) $ 21,741 Total Assets $ 80,221 $ (82 ) $ 80,139 Liabilities Accounts payable - Other $ 3,939 $ (10 ) $ 3,929 Income taxes payable $ 736 $ 2 $ 738 Accrued and other current liabilities $ 3,294 $ (19 ) $ 3,275 Total current liabilities $ 16,892 $ (27 ) $ 16,865 Other noncurrent obligations $ 5,930 $ (134 ) $ 5,796 Total other noncurrent liabilities $ 18,190 $ (134 ) $ 18,056 Stockholders' Equity Retained earnings $ 29,536 $ 79 $ 29,615 The Dow Chemical Company's stockholders' equity $ 26,865 $ 79 $ 26,944 Total equity $ 28,017 $ 79 $ 28,096 Total Liabilities and Equity $ 80,221 $ (82 ) $ 80,139 Significant Accounting Policy Updates The Company's significant accounting policy for revenue was updated as a result of the adoption of Topic 606: Revenue The Company recognizes revenue when its customer obtains control of promised goods or services in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. To determine revenue recognition for the arrangements that the Company determines are within the scope of Topic 606, the Company performs the following five steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract and (5) recognize revenue when (or as) the entity satisfies a performance obligation. See Note 3 for additional information on revenue recognition. Revenue related to the Company's insurance operations includes third-party insurance premiums, which are earned over the terms of the related insurance policies and reinsurance contracts. As a result of the adoption of ASU 2018-02, the Company's significant accounting policy for income taxes was updated to indicate the Company uses the portfolio approach for releasing income tax effects from accumulated other comprehensive loss. Dividends Prior to the Merger, the Company declared dividends of $0.46 per share for the three months ended June 30, 2017 ( $0.92 per share for the six months ended June 30, 2017 ). Effective with the Merger, Dow no longer has publicly traded common stock. Dow's common shares are owned solely by its parent company, DowDuPont. As a result, following the Merger, the Company’s Board of Directors ("Board") determines whether or not there will be a dividend distribution to DowDuPont. See Note 19 for additional information.

RECENT ACCOUNTING GUIDANCE

RECENT ACCOUNTING GUIDANCE	6 Months Ended
	Jun. 30, 2018
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING GUIDANCE	RECENT ACCOUNTING GUIDANCE Recently Adopted Accounting Guidance In the second quarter of 2018, the Company early adopted ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which amends the hedge accounting recognition and presentation under ASC 815, with the objectives of improving the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities and simplifying the application of hedge accounting by preparers. The new standard expands the strategies eligible for hedge accounting, relaxes the timing requirements of hedge documentation and effectiveness assessments, and permits, in certain cases, the use of qualitative assessments on an ongoing basis to assess hedge effectiveness. The new guidance also requires new disclosures and presentation. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted in any interim or annual period after issuance of the ASU. Entities must adopt the new guidance by applying a modified retrospective approach to hedging relationships existing as of the adoption date. The adoption of the new guidance did not have a material impact on the consolidated financial statements. In the second quarter of 2018, the Company early adopted ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from The Act, which was enacted on December 22, 2017, and requires certain disclosures about stranded tax effects. An entity has the option of applying the new guidance at the beginning of the period of adoption or retrospectively to each period (or periods) in which the tax effects related to items remaining in accumulated other comprehensive income are recognized. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and early adoption is permitted, including adoption in an interim period for reporting periods in which the financial statements have not yet been issued. The Company's adoption of the new standard was applied prospectively at the beginning of the second quarter of 2018, with a reclassification of the stranded tax effects as a result of the The Act from accumulated other comprehensive loss to retained earnings. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which is the new comprehensive revenue recognition standard that supersedes the revenue recognition requirements in Topic 605, "Revenue Recognition," and most industry specific guidance. 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. In 2015 and 2016, the Financial Accounting Standards Board ("FASB") issued additional ASUs related to Topic 606 that delayed the effective date of the guidance and clarified various aspects of the new revenue guidance, including principal versus agent considerations, identification of performance obligations, and accounting for licenses, and included other improvements and practical expedients. The new guidance was effective for annual and interim periods beginning after December 15, 2017. The Company elected to adopt the new guidance using the modified retrospective transition method for all contracts not completed as of the date of adoption. The Company recognized the cumulative effect of applying the new revenue standard as an adjustment to the opening balance of retained earnings at the beginning of the first quarter of 2018. The comparative periods have not been restated and continue to be accounted for under Topic 605. The adoption of the new guidance did not have a material impact on the consolidated financial statements. See Notes 1 and 3 for additional disclosures regarding the Company's contracts with customers as well as the impact of adopting Topic 606. In the first quarter of 2018, the Company adopted ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which amends the guidance in U.S. GAAP on the classification and measurement of financial instruments. Changes to the current guidance primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the ASU clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company applied the amendments in the new guidance by means of a cumulative-effect adjustment to the opening balance of retained earnings at the beginning of the first quarter of 2018. The adoption of the new guidance did not have a material impact on the consolidated financial statements. See Notes 1 and 16 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments," which addresses diversity in practice in how certain cash receipts and cash payments are presented and classified in the statements of cash flows and addresses eight specific cash flow issues. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. A key provision in the new guidance impacted the presentation of interests in certain trade accounts receivable conduits, which were retrospectively reclassified from "Operating Activities" to "Investing Activities" in the consolidated statements of cash flows. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory," which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments were effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The new guidance was applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings at the beginning of the first quarter of 2018. The adoption of this guidance did not have a material impact on the consolidated financial statements. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash," which clarifies how entities should present restricted cash and restricted cash equivalents in the statements of cash flows, and as a result, entities will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statements of cash flows. An entity with a material balance of restricted cash and restricted cash equivalents must disclose information about the nature of the restrictions. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The new guidance changed the presentation of restricted cash in the consolidated statements of cash flows and was implemented on a retrospective basis in the first quarter of 2018. See Notes 1 and 5 for additional information. In the first quarter of 2018, the Company adopted ASU 2017-07, "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost," which amends the requirements related to the income statement presentation of the components of net periodic benefit cost for employer sponsored defined benefit pension and other postretirement benefit plans. Under the new guidance, an entity must disaggregate and present the service cost component of net periodic benefit cost in the same income statement line items as other employee compensation costs arising from services rendered during the period, and only the service cost component will be eligible for capitalization. Other components of net periodic benefit cost must be presented separately from the line items that includes the service cost. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Entities were required to use a retrospective transition method to adopt the requirement for separate income statement presentation of the service cost and other components, and a prospective transition method to adopt the requirement to limit the capitalization of benefit cost to the service component. Accordingly, in the first quarter of 2018, the Company used a retrospective transition method to reclassify net periodic benefit cost, other than the service component, from "Cost of sales," "Research and development expenses" and "Selling, general and administrative expenses" to "Sundry income (expense) - net" in the consolidated statements of income. See Note 1 for additional information. Accounting Guidance Issued But Not Adopted at June 30, 2018 In February 2016, the FASB issued ASU 2016-02, "Leases (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 with lease terms of more than twelve months 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 will require 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 current U.S. GAAP but does contain some targeted improvements to align with the new revenue recognition guidance issued in 2014 (Topic 606). The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, using a modified retrospective approach, and early adoption is permitted. The Company has a cross-functional team in place to evaluate and implement the new guidance. The team continues to review existing lease arrangements and has engaged a third party to assist with the collection of lease data. The impact of applying the practical expedients and accounting policy elections has been evaluated and the Company is in the process of documenting the related considerations and decisions. The Company is currently implementing a software solution, enhancing accounting systems and updating business processes and controls related to leases. Collectively, these activities are expected to facilitate the Company's ability to meet the new accounting and disclosure requirements upon adoption in the first quarter of 2019. The Company is working to quantify the impact and anticipates that the adoption of the new standard will result in a material increase in lease-related assets and liabilities in the consolidated balance sheets.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Guidance In the second quarter of 2018, the Company early adopted ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which amends the hedge accounting recognition and presentation under ASC 815, with the objectives of improving the financial reporting of hedging relationships to better portray the economic results of an entity's risk management activities and simplifying the application of hedge accounting by preparers. The new standard expands the strategies eligible for hedge accounting, relaxes the timing requirements of hedge documentation and effectiveness assessments, and permits, in certain cases, the use of qualitative assessments on an ongoing basis to assess hedge effectiveness. The new guidance also requires new disclosures and presentation. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early adoption is permitted in any interim or annual period after issuance of the ASU. Entities must adopt the new guidance by applying a modified retrospective approach to hedging relationships existing as of the adoption date. The adoption of the new guidance did not have a material impact on the consolidated financial statements. In the second quarter of 2018, the Company early adopted ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from The Act, which was enacted on December 22, 2017, and requires certain disclosures about stranded tax effects. An entity has the option of applying the new guidance at the beginning of the period of adoption or retrospectively to each period (or periods) in which the tax effects related to items remaining in accumulated other comprehensive income are recognized. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and early adoption is permitted, including adoption in an interim period for reporting periods in which the financial statements have not yet been issued. The Company's adoption of the new standard was applied prospectively at the beginning of the second quarter of 2018, with a reclassification of the stranded tax effects as a result of the The Act from accumulated other comprehensive loss to retained earnings. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)," which is the new comprehensive revenue recognition standard that supersedes the revenue recognition requirements in Topic 605, "Revenue Recognition," and most industry specific guidance. 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. In 2015 and 2016, the Financial Accounting Standards Board ("FASB") issued additional ASUs related to Topic 606 that delayed the effective date of the guidance and clarified various aspects of the new revenue guidance, including principal versus agent considerations, identification of performance obligations, and accounting for licenses, and included other improvements and practical expedients. The new guidance was effective for annual and interim periods beginning after December 15, 2017. The Company elected to adopt the new guidance using the modified retrospective transition method for all contracts not completed as of the date of adoption. The Company recognized the cumulative effect of applying the new revenue standard as an adjustment to the opening balance of retained earnings at the beginning of the first quarter of 2018. The comparative periods have not been restated and continue to be accounted for under Topic 605. The adoption of the new guidance did not have a material impact on the consolidated financial statements. See Notes 1 and 3 for additional disclosures regarding the Company's contracts with customers as well as the impact of adopting Topic 606. In the first quarter of 2018, the Company adopted ASU 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities," which amends the guidance in U.S. GAAP on the classification and measurement of financial instruments. Changes to the current guidance primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the ASU clarifies guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company applied the amendments in the new guidance by means of a cumulative-effect adjustment to the opening balance of retained earnings at the beginning of the first quarter of 2018. The adoption of the new guidance did not have a material impact on the consolidated financial statements. See Notes 1 and 16 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments," which addresses diversity in practice in how certain cash receipts and cash payments are presented and classified in the statements of cash flows and addresses eight specific cash flow issues. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. A key provision in the new guidance impacted the presentation of interests in certain trade accounts receivable conduits, which were retrospectively reclassified from "Operating Activities" to "Investing Activities" in the consolidated statements of cash flows. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory," which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. The amendments were effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The new guidance was applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings at the beginning of the first quarter of 2018. The adoption of this guidance did not have a material impact on the consolidated financial statements. See Note 1 for additional information. In the first quarter of 2018, the Company adopted ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash," which clarifies how entities should present restricted cash and restricted cash equivalents in the statements of cash flows, and as a result, entities will no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statements of cash flows. An entity with a material balance of restricted cash and restricted cash equivalents must disclose information about the nature of the restrictions. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The new guidance changed the presentation of restricted cash in the consolidated statements of cash flows and was implemented on a retrospective basis in the first quarter of 2018. See Notes 1 and 5 for additional information. In the first quarter of 2018, the Company adopted ASU 2017-07, "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost," which amends the requirements related to the income statement presentation of the components of net periodic benefit cost for employer sponsored defined benefit pension and other postretirement benefit plans. Under the new guidance, an entity must disaggregate and present the service cost component of net periodic benefit cost in the same income statement line items as other employee compensation costs arising from services rendered during the period, and only the service cost component will be eligible for capitalization. Other components of net periodic benefit cost must be presented separately from the line items that includes the service cost. The new standard was effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. Entities were required to use a retrospective transition method to adopt the requirement for separate income statement presentation of the service cost and other components, and a prospective transition method to adopt the requirement to limit the capitalization of benefit cost to the service component. Accordingly, in the first quarter of 2018, the Company used a retrospective transition method to reclassify net periodic benefit cost, other than the service component, from "Cost of sales," "Research and development expenses" and "Selling, general and administrative expenses" to "Sundry income (expense) - net" in the consolidated statements of income. See Note 1 for additional information. Accounting Guidance Issued But Not Adopted at June 30, 2018 In February 2016, the FASB issued ASU 2016-02, "Leases (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 with lease terms of more than twelve months 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 will require 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 current U.S. GAAP but does contain some targeted improvements to align with the new revenue recognition guidance issued in 2014 (Topic 606). The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, using a modified retrospective approach, and early adoption is permitted. The Company has a cross-functional team in place to evaluate and implement the new guidance. The team continues to review existing lease arrangements and has engaged a third party to assist with the collection of lease data. The impact of applying the practical expedients and accounting policy elections has been evaluated and the Company is in the process of documenting the related considerations and decisions. The Company is currently implementing a software solution, enhancing accounting systems and updating business processes and controls related to leases. Collectively, these activities are expected to facilitate the Company's ability to meet the new accounting and disclosure requirements upon adoption in the first quarter of 2019. The Company is working to quantify the impact and anticipates that the adoption of the new standard will result in a material increase in lease-related assets and liabilities in the consolidated balance sheets.

REVENUE (Notes)

REVENUE (Notes)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	REVENUE Revenue Recognition The majority of the Company's revenue is derived from product sales. In the three and six months ended June 30, 2018 , 99 percent of the Company's sales related to product sales ( 98 percent in the three and six months ended June 30, 2017). The remaining sales were primarily related to Dow's insurance operations and licensing of patents and technologies. As of January 1, 2018, the Company accounts for revenue in accordance with Topic 606, "Revenue from Contracts with Customers," except for revenue from Dow's insurance operations, which is accounted for in accordance with Topic 944, "Financial Services - Insurance." Product Sales Product sales consist of sales of the Company's products to manufacturers and distributors. The Company considers order confirmations or purchase orders, which in some cases are governed by master supply agreements, to be contracts with a customer. Product sale contracts are generally short-term contracts where the time between order confirmation and satisfaction of all performance obligations is less than one year. However, the Company has some long-term contracts which can span multiple years. Revenues from product sales are recognized when the customer obtains control of the Company’s product, which occurs at a point in time, usually upon shipment, with payment terms typically in the range of 30 to 60 days after invoicing, depending on business and geographic region. When the Company performs shipping and handling activities after the transfer of control to the customer (e.g., when control transfers prior to shipment), these are considered fulfillment activities, and accordingly, the costs are accrued when the related revenue is recognized. Taxes collected from customers relating to product sales and remitted to governmental authorities are excluded from revenues. The Company has elected to use the practical expedient to expense cash and non-cash sales incentives, as the amortization period for the costs to obtain the contract would have been one year or less. Certain long-term contracts include a series of distinct goods that are delivered continuously to the customer through a pipeline (e.g., feedstocks). For these types of product sales, the Company invoices the customer in an amount that directly corresponds with the value to the customer of the Company’s performance to date. As a result, the Company recognizes revenue based on the amount billable to the customer in accordance with the right to invoice practical expedient. The transaction price includes estimates for reductions in revenue from customer rebates and right of returns on product sales. These amounts are estimated based upon the most likely amount of consideration to which the customer will be entitled. The Company’s obligation for right of returns is limited primarily to the Seed principal product group. All estimates are based on historical experience, anticipated performance and the Company’s best judgment at the time to the extent it is probable that a significant reversal of revenue recognized will not occur. All estimates for variable consideration are reassessed periodically. The Company has elected the practical expedient to not adjust the amount of consideration for the effects of a significant financing component for all instances in which the period between payment and transfer of the goods will be one year or less. For contracts with multiple performance obligations, the Company allocates the transaction price to each performance obligation based on the relative standalone selling price. The standalone selling price is the observable price which depicts the price as if sold to a similar customer in similar circumstances. Patents, Trademarks and Licenses The Company enters into licensing arrangements in which it licenses certain rights of its patents and technology to customers. Revenue from the majority of the Company’s licenses for patents and technology is derived from sales-based royalties. The Company estimates the amount of sales-based royalties it expects to be entitled based on historical sales to the customer. For the remaining revenue from licensing arrangements, payments are typically received from the Company’s licensees based on billing schedules established in each contract. Revenue is recognized by the Company when the performance obligation is satisfied. Remaining Performance Obligations Remaining performance obligations represent the transaction price allocated to unsatisfied or partially unsatisfied performance obligations. At June 30, 2018 , the Company had remaining performance obligations related to material rights granted to customers for contract renewal options of $99 million and unfulfilled performance obligations for the licensing of technology of $228 million . The Company expects revenue to be recognized for the remaining performance obligations over the next one to six years. The remaining performance obligations are for product sales that have expected durations of one year or less, product sales of materials delivered through a pipeline for which the Company has elected the right to invoice practical expedient, or variable consideration attributable to royalties for licenses of patents and technology. The Company has received advance payments from customers related to long-term supply agreements that are deferred and recognized over the life of the contract, with remaining contract terms that range up to 23 years. The Company will have rights to future consideration for revenue recognized when product is delivered to the customer. These payments are included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets. Disaggregation of Revenue The Company disaggregates its revenue from contracts with customers by principal product group and geographic region, as the Company believes it best depicts the nature, amount, timing and uncertainty of its revenue and cash flows. See details in the tables below: Net Trade Revenue by Principal Product Group Three Months Ended Jun 30, 2018 Six Months Ended In millions Coatings & Performance Monomers $ 1,103 $ 2,057 Construction Chemicals 226 408 Consumer Solutions 1,516 2,879 Crop Protection 1,436 2,558 Electronics & Imaging 652 1,279 Hydrocarbons & Energy 1,833 3,612 Industrial Biosciences 132 267 Industrial Solutions 1,198 2,358 Nutrition & Health 157 313 Packaging and Specialty Plastics 3,886 7,740 Polyurethanes & CAV 2,460 4,831 Safety & Construction 523 967 Seed 269 640 Transportation & Advanced Polymers 326 630 Corporate 73 146 Other 3 7 Total $ 15,793 $ 30,692 Net Trade Revenue by Geographic Region Three Months Ended Jun 30, 2018 Six Months Ended In millions U.S. & Canada $ 5,765 $ 11,233 EMEA 1 4,739 9,504 Asia Pacific 3,675 6,931 Latin America 1,614 3,024 Total $ 15,793 $ 30,692 1. Europe, Middle East and Africa. Contract Balances The Company receives payments from customers based upon contractual billing schedules. Accounts receivable are recorded when the right to consideration becomes unconditional. Contract assets include amounts related to the Company’s contractual right to consideration for completed performance obligations not yet invoiced. Contract liabilities include payments received in advance of performance under the contract and are realized when the associated revenue is recognized under the contract. "Contract liabilities - current" primarily reflects deferred revenue from prepayments from customers for product to be delivered in a time period of 12 months or less. "Contract liabilities - noncurrent" includes advance payments that the Company has received from customers related to long-term supply agreements and royalty payments that are deferred and recognized over the life of the contract. Revenue recognized in the first six months of 2018 from amounts included in contract liabilities at the beginning of the period was approximately $110 million . In the first six months of 2018, the amount of contract assets reclassified to receivables as a result of the right to the transaction consideration becoming unconditional was insignificant. The Company did not recognize any asset impairment charges related to contract assets during the period. The following table summarizes the contract balances at June 30, 2018 and December 31, 2017: Contract Balances Jun 30, 2018 Topic 606 Adjustments Jan 1, 2018 Dec 31, 2017 In millions Accounts and notes receivable - Trade $ 8,951 $ — $ 7,338 Contract assets - current 1 $ 20 $ 18 $ — Contract assets - noncurrent 2 $ 45 $ 43 $ — Contract liabilities - current 3 $ 152 $ 50 $ 117 Contract liabilities - noncurrent 4 $ 1,454 $ 117 $ 1,365 1. Included in "Other current assets" in the consolidated balance sheets. 2. Included in "Deferred charges and other assets" in the consolidated balance sheets. 3. Included in "Accrued and other current liabilities" in the consolidated balance sheets. 4. Included in "Other noncurrent obligations" in the consolidated balance sheets.

Restructuring and Asset Related

Restructuring and Asset Related Charges - Net	6 Months Ended
	Jun. 30, 2018
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	RESTRUCTURING AND ASSET RELATED CHARGES (CREDITS) - NET Restructuring Plans DowDuPont Cost Synergy Program In September and November 2017, DowDuPont approved post-merger restructuring actions under the DowDuPont Cost Synergy Program (the "Synergy Program") which is designed to integrate and optimize the organization following the Merger and in preparation for the Intended Business Separations. Based on all actions approved to date under the Synergy Program, the Company expects to record total pretax restructuring charges of approximately $1.3 billion , comprised of approximately $525 million to $575 million of severance and related benefit costs; $400 million to $440 million of asset write-downs and write-offs; and $290 million to $310 million of costs associated with exit and disposal activities. As a result of these actions, the Company recorded pretax restructuring charges of $687 million in 2017, consisting of severance and related benefit costs of $357 million , asset write-downs and write-offs of $287 million and costs associated with exit and disposal activities of $43 million . For the three months ended June 30, 2018, the Company recorded pretax restructuring charges of $88 million , consisting of severance and related benefit costs of $38 million , asset write-downs and write-offs of $27 million and costs associated with exit and disposal activities of $23 million . For the six months ended June 30, 2018, the Company recorded pretax restructuring charges of $251 million , consisting of severance and related benefit costs of $142 million , asset write-downs and write-offs of $75 million and costs associated with exit and disposal activities of $34 million . The impact of these charges is shown as "Restructuring and asset related charges (credits) - net" in the consolidated statements of income. The Company expects to record additional restructuring charges during 2018 and 2019 and substantially complete the Synergy Program by the end of 2019. The following table summarizes the activities related to the Synergy Program. At June 30, 2018 , $250 million was included in "Accrued and other current liabilities" ( $231 million at December 31, 2017 ) and $108 million was included in "Other noncurrent obligations" ( $118 million at December 31, 2017 ) in the consolidated balance sheets. Synergy Program Severance and Related Benefit Costs Asset Write-downs and Write-offs Costs Associated with Exit and Disposal Activities Total In millions 2017 restructuring charges $ 357 $ 287 $ 43 $ 687 Charges against the reserve — (287 ) — (287 ) Cash payments (51 ) — — (51 ) Reserve balance at Dec 31, 2017 $ 306 $ — $ 43 $ 349 2018 restructuring charges 1 142 75 34 251 Charges against the reserve — (75 ) — (75 ) Cash payments (137 ) — (30 ) (167 ) Reserve balance at Jun 30, 2018 $ 311 $ — $ 47 $ 358 1. Included in "Restructuring and asset related charges (credits) - net" in the consolidated statements of income. The restructuring charges related to the write-down and write-off of assets in the first six months of 2018 totaled $75 million and primarily related to assets aligned with seed activities. 2016 Restructuring On June 27, 2016, Dow's Board approved a restructuring plan that incorporated actions related to the ownership restructure of Dow Silicones. These actions, aligned with Dow’s value growth and synergy targets, will result in a global workforce reduction of approximately 2,500 positions, with most of these positions resulting from synergies related to the ownership restructure of Dow Silicones. For the three months ended June 30, 2018, the Company recorded pretax restructuring charges of $7 million , consisting of a favorable adjustment to the severance reserve of $8 million and a charge of $15 million for costs associated with exit and disposal activities. For the six months ended June 30, 2018, the Company recorded pretax restructuring charges of $6 million , consisting of a favorable adjustment to the severance reserve of $8 million and a charge of $14 million for costs associated with exit and disposal activities. The impact of these charges is shown as "Restructuring and asset related charges (credits) - net" in the consolidated statements of income. The 2016 restructuring activities were substantially complete at June 30, 2018, with remaining liabilities for severance and related benefit costs and costs associated with exit and disposal activities to be settled over time. The following table summarizes the activities related to the Company's 2016 restructuring reserve: 2016 Restructuring Severance and Related Benefit Costs Costs Associated with Exit and Disposal Activities Total In millions Reserve balance at Dec 31, 2017 $ 51 $ 17 $ 68 Adjustments to the reserve 1 (8 ) 14 6 Cash payments (37 ) (4 ) (41 ) Reserve balance at Jun 30, 2018 $ 6 $ 27 $ 33 1. Included in "Restructuring and asset related charges (credits) - net" in the consolidated statements of income. Dow expects to incur additional costs in the future related to its restructuring activities. Future costs are expected to include demolition costs related to closed facilities and restructuring plan implementation costs; these costs will be recognized as incurred. The Company 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.

SUPPLEMENTARY INFORMATION

SUPPLEMENTARY INFORMATION	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
SUPPLEMENTARY INFORMATION	SUPPLEMENTARY INFORMATION The Company uses "Sundry income (expense) – net" to record a variety of income and expense items such as foreign currency exchange gains and losses, interest income, dividends from investments, gains and losses on sales of investments and assets, non-operating pension and other postretirement benefit plan credits or costs, and certain litigation matters. For the three months ended June 30, 2018 , "Sundry income (expense) - net" was income of $5 million compared with income of $322 million for the three months ended June 30, 2017 . The second quarter of 2017 included a $137 million gain related to the Nova patent infringement matter and gains on sales of assets and other investments. For the six months ended June 30, 2018 , "Sundry income (expense) - net" was income of $88 million compared with expense of $122 million for the six months ended June 30, 2017 . In addition to the amounts previously discussed, the first six months of 2017 included a $469 million loss related to the Bayer CropScience arbitration matter. See Note 11 for additional information. Cash, Cash Equivalents and Restricted Cash The Company is required to set aside funds for various activities that arise in the normal course of business including, but not limited to, insurance contracts, legal matters and other agreements. These funds typically have legal restrictions associated with them and are deposited in an escrow account or held in a separately identifiable account by the Company. The following table provides a reconciliation of cash, cash equivalents and restricted cash presented in the consolidated balance sheets to the total cash, cash equivalents and restricted cash presented in the consolidated statements of cash flows: Reconciliation of Cash, Cash Equivalents and Restricted Cash Jun 30, 2018 Dec 31, 2017 Jun 30, 2017 In millions Cash and cash equivalents $ 4,823 $ 6,188 $ 6,218 Restricted cash 1 45 19 15 Total cash, cash equivalents and restricted cash $ 4,868 $ 6,207 $ 6,233 1. Included in "Other current assets" in the consolidated balance sheets.

INCOME TAXES (Notes)

INCOME TAXES (Notes)	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	INCOME TAXES On December 22, 2017, The Act was enacted. The Act reduces the U.S. federal corporate income tax rate from 35 percent to 21 percent, requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously deferred, creates new provisions related to foreign sourced earnings, eliminates the domestic manufacturing deduction and moves towards a territorial system. At June 30, 2018 , the Company had not completed its accounting for the tax effects of The Act; however, as described below, the Company made reasonable estimates of the effects on its existing deferred tax balances and the one-time transition tax. In accordance with Staff Accounting Bulletin 118, income tax effects of The Act may be refined upon obtaining, preparing, or analyzing additional information during the measurement period and such changes could be material. During the measurement period, provisional amounts may also be adjusted for the effects, if any, of interpretative guidance issued by U.S. regulatory and standard-setting bodies. • As a result of The Act, the Company remeasured its U.S. federal deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21 percent . However, the Company is still analyzing certain aspects of The Act and refining its calculations. No adjustment was recorded in the second quarter of 2018. The Company has recorded a cumulative charge of $19 million to "Provision for income taxes" since the enactment of The Act. • The Act requires a mandatory deemed repatriation of post-1986 undistributed foreign earnings and profits (“E&P”), which results in a one-time transition tax. The Company has not yet completed its calculation of the total post-1986 foreign E&P for its foreign subsidiaries as E&P will not be finalized until the DowDuPont federal income tax return is filed. The Company has not recorded a change to the $865 million provisional charge recorded in the fourth quarter of 2017 with respect to the one-time transition tax. • In the six months ended June 30, 2018, the Company recorded an indirect impact of The Act related to prepaid tax on the intercompany sale of inventory. The amount recorded related to the inventory was a $38 million charge to "Provision for income taxes." • For tax years beginning after December 31, 2017, The Act introduced new provisions for U.S. taxation of certain global intangible low-taxed income ("GILTI"). The Company is evaluating the policy election on whether the additional liability will be recorded in the period in which it is incurred or recognized for the basis differences that would be expected to reverse in future years. Each year the Company files tax returns in the various national, state and local income taxing jurisdictions in which it operates. These tax returns are subject to examination and possible challenge by the tax authorities. Positions challenged by the tax authorities may be settled or appealed by the Company. As a result, there is an uncertainty in income taxes recognized in the Company’s financial statements in accordance with accounting for income taxes and accounting for uncertainty in income taxes. The ultimate resolution of such uncertainties is not expected to have a material impact on the Company's results of operations.

INVENTORIES

INVENTORIES	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES The following table provides a breakdown of inventories: Inventories Jun 30, 2018 Dec 31, 2017 In millions Finished goods $ 5,677 $ 5,213 Work in process 2,239 1,747 Raw materials 961 898 Supplies 870 848 Total $ 9,747 $ 8,706 Adjustment of inventories to a LIFO basis (401 ) (330 ) Total inventories 1 $ 9,346 $ 8,376 1. In the first quarter of 2018, the Company adopted Topic 606, which resulted in a cumulative effect change to the Company's January 1, 2018 "Inventories" balance. See Note 1 for additional information.

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	GOODWILL AND OTHER INTANGIBLE ASSETS The following table shows the carrying amount of goodwill: Goodwill In millions Net goodwill at Dec 31, 2017 $ 13,938 Foreign currency impact (44 ) Net goodwill at Jun 30, 2018 $ 13,894 The following table provides information regarding the Company’s other intangible assets: Other Intangible Assets Jun 30, 2018 Dec 31, 2017 In millions Gross Carrying Amount Accum Amort Net Gross Carrying Amount Accum Amort Net Intangible assets with finite lives: Developed technology $ 3,254 $ (1,804 ) $ 1,450 $ 3,263 $ (1,690 ) $ 1,573 Software 1,479 (833 ) 646 1,420 (780 ) 640 Trademarks/tradenames 689 (594 ) 95 697 (570 ) 127 Customer-related 4,945 (2,030 ) 2,915 5,035 (1,965 ) 3,070 Other 243 (163 ) 80 245 (156 ) 89 Total other intangible assets, finite lives $ 10,610 $ (5,424 ) $ 5,186 $ 10,660 $ (5,161 ) $ 5,499 In-process research and development 50 — 50 50 — 50 Total other intangible assets $ 10,660 $ (5,424 ) $ 5,236 $ 10,710 $ (5,161 ) $ 5,549 The following table provides information regarding amortization expense related to other intangible assets: Amortization Expense Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Other intangible assets, excluding software $ 155 $ 157 $ 314 $ 312 Software, included in “Cost of sales” $ 25 $ 20 $ 48 $ 40 Total estimated amortization expense for 2018 and the five succeeding fiscal years is as follows: Estimated Amortization Expense In millions 2018 $ 718 2019 $ 672 2020 $ 635 2021 $ 603 2022 $ 532 2023 $ 508

TRANSFERS OF FINANCIAL ASSETS

TRANSFERS OF FINANCIAL ASSETS	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
TRANSFERS OF FINANCIAL ASSETS	TRANSFERS OF FINANCIAL ASSETS The Company has historically sold trade accounts receivable of select North American entities and qualifying trade accounts receivable of select European entities on a revolving basis to certain multi-seller commercial paper conduit entities ("conduits"). The proceeds received are comprised of cash and interests in specified assets of the conduits (the receivables sold by the Company) that entitle the Company to the residual cash flows of such specified assets in the conduits after the commercial paper has been repaid. Neither the conduits nor the investors in those entities have recourse to other assets of the Company in the event of nonpayment by the debtors. In the fourth quarter of 2017, the Company suspended further sales of trade accounts receivable through these facilities and began reducing outstanding balances through collections of trade accounts receivable previously sold to such conduits. The Company has the ability to resume such sales to the conduits, subject to certain prior notice requirements, at the discretion of the Company. The following table summarizes the carrying value of interests held, which represents the Company's maximum exposure to loss related to the receivables sold, and the percentage of anticipated credit losses related to the trade accounts receivable sold. Also provided is the sensitivity of the fair value of the interests held to hypothetical adverse changes in the anticipated credit losses; amounts shown below are the corresponding hypothetical decreases in the carrying value of interests. Interests Held Jun 30, Dec 31, In millions Carrying value of interests held $ 24 $ 677 Percentage of anticipated credit losses 36.81 % 2.64 % Impact to carrying value - 10% adverse change $ — $ — Impact to carrying value - 20% adverse change $ — $ 1 Credit losses, net of any recoveries, on receivables sold were insignificant for the three and six months ended June 30, 2018 and 2017 . Following is an analysis of certain cash flows between the Company and the conduits: Cash Proceeds Three Months Ended Six Months Ended In millions Jun 30, Jun 30, Jun 30, Jun 30, Collections reinvested in revolving receivables $ — $ 6,051 $ — $ 11,732 Interests in conduits 1 $ 211 $ 1,363 $ 656 $ 1,914 1. Presented in "Investing Activities" in the consolidated statements of cash flows in accordance with ASU 2016-15. See Notes 1 and 2 for additional information. In connection with the review and implementation of ASU 2016-15, the Company also changed the prior year value of “Interests in conduits” due to additional interpretive guidance of the required method for calculating the cash received from beneficial interests in the conduits. Following is additional information related to the sale of receivables under these facilities: Trade Accounts Receivable Sold Jun 30, Dec 31, In millions Delinquencies on sold receivables still outstanding $ 36 $ 82 Trade accounts receivable outstanding and derecognized $ 36 $ 612

NOTES PAYABLE, LONG-TERM DEBT A

NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES	NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES A summary of the Company's notes payable, long-term debt and available credit facilities can be found in Note 15 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . If applicable, updates have been included in the respective section below. 2018 Activity In the first six months of 2018, the Company redeemed $333 million of 5.7 percent notes at maturity, and an aggregate principal amount of $20 million of International Notes ("InterNotes") at maturity. In addition, approximately $75 million of long-term debt was repaid by consolidated variable interest entities. The Company also called an aggregate principal amount of $125 million tax-exempt bonds of various interest rates and maturities in 2029, 2033 and 2038. As a result of the redemptions, the Company recognized a pretax loss of $1 million on the early extinguishment of debt, included in “Sundry income (expense) - net” in the consolidated statements of income. In May 2018, the Company gave notice to call an additional $218 million of tax-exempt bonds with original maturity dates in 2033, which were repaid on July 16, 2018. 2017 Activity In the first six months of 2017, the Company redeemed $30 million aggregate principal amount of InterNotes at maturity. In addition, approximately $60 million of long-term debt was repaid by consolidated variable interest entities. Term Loan Facility In connection with the ownership restructure of Dow Silicones on May 31, 2016, Dow Silicones incurred $4.5 billion of indebtedness under a certain third party credit agreement ("Term Loan Facility"). The Company subsequently guaranteed the obligations of Dow Silicones under the Term Loan Facility and, as a result, the covenants and events of default applicable to the Term Loan Facility are substantially similar to the covenants and events of default set forth in the Company's Five Year Competitive Advance and Revolving Credit Facility. In the second quarter of 2018, Dow Silicones exercised the 19-month extension option making amounts borrowed under the Term Loan Facility repayable on December 30, 2019. In addition, Dow Silicones amended the Term Loan Facility to include an additional 2-year extension option, at Dow Silicones' election, upon satisfaction of certain customary conditions precedent. Debt Covenants and Default Provisions There were no material changes to the debt covenants and default provisions related to the Company's outstanding long-term debt and primary, private credit agreements in the first six months of 2018. For additional information on the Company's debt covenants and default provisions, see Note 15 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

COMMITMENTS AND CONTINGENT LIAB

COMMITMENTS AND CONTINGENT LIABILITIES	6 Months Ended
	Jun. 30, 2018
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 June 30, 2018 , the Company had accrued obligations of $834 million for probable environmental remediation and restoration costs, including $143 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 best estimate of the costs for remediation and restoration with respect to environmental matters for which the Company has accrued liabilities, although it is reasonably possible that the ultimate cost with respect to these particular matters could range up to approximately two 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 Company’s results of operations, financial condition and cash flows. It is the opinion of the Company’s management, however, that the possibility is remote that costs in excess of the range disclosed will have a material impact on the Company’s results of operations, financial condition and cash flows. Inherent uncertainties exist in these estimates primarily due to unknown conditions, changing governmental regulations and legal standards regarding liability, and emerging remediation technologies for handling site remediation and restoration. At December 31, 2017 , the Company had accrued obligations of $878 million for probable environmental remediation and restoration costs, including $152 million for the remediation of Superfund sites. Litigation Asbestos-Related Matters of Union Carbide Corporation A summary of Asbestos-Related Matters of Union Carbide Corporation can be found in Note 16 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. Introduction Union Carbide 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 Union Carbide sold in the past, alleged exposure to asbestos-containing products located on Union Carbide’s premises, and Union Carbide’s responsibility for asbestos suits filed against a former Union Carbide 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 Union Carbide’s products. Union Carbide expects more asbestos-related suits to be filed against Union Carbide 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, Union Carbide has engaged Ankura Consulting Group, LLC ("Ankura"), a third party actuarial specialist, to review Union Carbide's historical asbestos-related claim and resolution activity in order to assist Union Carbide's management in estimating the 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 2017 Ankura review and Union Carbide's own review of the data, Union Carbide's total asbestos-related liability through the terminal year of 2049, including asbestos-related defense and processing costs, was $1,369 million at December 31, 2017 , and included in “Accrued and other current liabilities” and “Asbestos-related liabilities - noncurrent” in the consolidated balance sheets. Each quarter, Union Carbide reviews claims filed, settled and dismissed, as well as average settlement and resolution costs by disease category. Union Carbide also considers additional quantitative and qualitative factors such as the nature of pending claims, trial experience of Union Carbide 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. Union Carbide's 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 Union Carbide's review of 2018 activity, it was determined that no adjustment to the accrual was required at June 30, 2018 . Union Carbide’s asbestos-related liability for pending and future claims and defense and processing costs was $1,310 million at June 30, 2018 , and approximately 16 percent of the recorded liability related to pending claims and approximately 84 percent related to future claims. Summary The Company's management believes the amounts recorded by Union Carbide for the asbestos-related liability (including defense and processing costs) reflect reasonable and probable estimates of the liability 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 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 Union Carbide to be higher or lower than those projected or those recorded. Any such events could result in an increase or decrease in the recorded liability. Because of the uncertainties described above, Union Carbide cannot estimate the full range of the cost of resolving pending and future asbestos-related claims facing Union Carbide and Amchem. As a result, it is reasonably possible that an additional cost of disposing of Union Carbide's asbestos-related claims, including future defense and processing costs, could have a material impact on the Company's results of operations and cash flows for a particular period and on the consolidated financial position. Bayer CropScience v. Dow AgroSciences ICC Arbitration A summary of the Bayer CropScience v. Dow AgroSciences ICC Arbitration can be found in Note 16 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. On August 13, 2012, Bayer CropScience AG and Bayer CropScience NV (together, “Bayer”) filed a request for arbitration with the International Chamber of Commerce ("ICC") International Court of Arbitration against Dow AgroSciences LLC, a wholly owned subsidiary of the Company, and other subsidiaries of the Company (collectively, “DAS”) under a 1992 license agreement executed by predecessors of the parties (the “License Agreement”). In its request for arbitration, Bayer alleged that (i) DAS breached the License Agreement, (ii) the License Agreement was properly terminated with no ongoing rights to DAS, (iii) DAS infringed its patent rights related to the use of the pat gene in certain soybean and cotton seed products, and (iv) Bayer was entitled to monetary damages and injunctive relief. DAS denied that it breached the License Agreement and asserted that the License Agreement remained in effect because it was not properly terminated. DAS also asserted that all of Bayer’s patents at issue are invalid and/or not infringed, and, therefore, for these reasons (and others), a license was not required. A three-member arbitration tribunal presided over the arbitration proceeding (the “tribunal”). In a decision dated October 9, 2015, the tribunal determined that (i) DAS breached the License Agreement, (ii) Bayer properly terminated the License Agreement, (iii) all of the patents remaining in the proceeding are valid and infringed, and (iv) that Bayer is entitled to monetary damages in the amount of $455 million inclusive of pre-judgment interest and costs (the “arbitral award”). One of the arbitrators, however, issued a partial dissent finding that all of the patents are invalid based on the double-patenting doctrine. The tribunal also denied Bayer’s request for injunctive relief. On March 1, 2017, the U.S. Court of Appeals for the Federal Circuit affirmed the arbitral award. As a result of this action, in the first quarter of 2017, the Company recorded a loss of $469 million , inclusive of the arbitral award and post-judgment interest, which was included in "Sundry income (expense) - net" in the consolidated statements of income. On May 26, 2017, the Company paid the $469 million arbitral award to Bayer as a result of that decision. On September 11, 2017, DAS filed a petition for writ of certiorari with the United States Supreme Court to review the case, but the Court denied DAS’s petition. The litigation is now concluded with no risk of further liability. Rocky Flats Matter A summary of the Rocky Flats Matter can be found in Note 16 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. The Company and Rockwell International Corporation ("Rockwell") (collectively, the "defendants") were defendants in a class action lawsuit filed in 1990 on behalf of property owners ("plaintiffs") in Rocky Flats, Colorado, who asserted claims for nuisance and trespass based on alleged property damage caused by plutonium releases from a nuclear weapons facility owned by the U.S. Department of Energy ("DOE") but operated by Dow and Rockwell. The plaintiffs tried their case as a public liability action under the Price Anderson Act ("PAA"). Dow and Rockwell litigated this matter in the U.S. District Court for the District of Colorado, the U.S. Tenth Circuit Court of Appeals and then filed a petition for writ of certiorari in the United States Supreme Court. On May 18, 2016, Dow, Rockwell and the plaintiffs entered into a settlement agreement for $375 million , of which $131 million was paid by Dow. The DOE authorized the settlement pursuant to the PAA and the nuclear hazards indemnity provisions contained in Dow's and Rockwell's contracts. On April 28, 2017, the District Court conducted a fairness hearing and granted final judgment approving the class settlement and dismissed class claims against the defendants ("final judgment order"). On December 13, 2016, the United States Civil Board of Contract Appeals unanimously ordered the United States government to pay the amounts stipulated in the settlement agreement. On January 17, 2017, the Company received a full indemnity payment of $131 million from the United States government for Dow's share of the class settlement. On January 26, 2017, the Company placed $130 million in an escrow account for the settlement payment owed to the plaintiffs. The funds were subsequently released from escrow as a result of the final judgment order. The litigation is now concluded. Dow Silicones Chapter 11 Related Matters A summary of the Dow Silicones Chapter 11 Related Matters can be found in Note 16 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. Introduction In 1995, Dow Silicones, then a 50:50 joint venture between Dow and Corning Incorporated ("Corning"), voluntarily filed for protection under Chapter 11 of the U.S. Bankruptcy Code in order to resolve Dow Silicones’ breast implant liabilities and related matters (the “Chapter 11 Proceeding”). Dow Silicones emerged from the Chapter 11 Proceeding on June 1, 2004 (the “Effective Date”) and is implementing the Joint Plan of Reorganization (the “Plan”). The Plan provides funding for the resolution of breast implant and other product liability litigation covered by the Chapter 11 Proceeding and provides a process for the satisfaction of commercial creditor claims in the Chapter 11 Proceeding. As of June 1, 2016, Dow Silicones is a wholly owned subsidiary of Dow. Breast Implant and Other Product Liability Claims Under the Plan, a product liability settlement program administered by an independent claims office (the “Settlement Facility”) was created to resolve breast implant and other product liability claims. Product liability claimants rejecting the settlement program in favor of pursuing litigation must bring suit against a litigation facility (the “Litigation Facility”). Dow Silicones has an obligation to fund the Settlement Facility and the Litigation Facility over a 16-year period, commencing at the Effective Date. At June 30, 2018 , Dow Silicones and its insurers have made life-to-date payments of $1,762 million to the Settlement Facility and the Settlement Facility reported an unexpended balance of $126 million . Dow Silicones' liability for breast implant and other product liability claims ("Implant Liability") was $263 million at June 30, 2018 ( $263 million at December 31, 2017 ), which was included in "Other noncurrent obligations" in the consolidated balance sheets. Dow Silicones is not aware of circumstances that would change the factors used in estimating the Implant Liability and believes the recorded liability reflects the best estimate of the remaining funding obligations under the Plan; however, the estimate relies upon a number of significant assumptions, including: future claim filing levels in the Settlement Facility will be similar to those in a prior settlement program, which management uses to estimate future claim filing levels for the Settlement Facility; future acceptance rates, disease mix, and payment values will be materially consistent with historical experience; no material negative outcomes in future controversies or disputes over Plan interpretation will occur; and the Plan will not be modified. If actual outcomes related to any of these assumptions prove to be materially different, the future liability to fund the Plan may be materially different than the amount estimated. If Dow Silicones was ultimately required to fund the full liability up to the maximum capped value, the liability would be $2,047 million at June 30, 2018 . Commercial Creditor Issues The Plan provides that each of Dow Silicones' commercial creditors (the “Commercial Creditors”) would receive in cash the sum of (a) an amount equal to the principal amount of their claims and (b) interest on such claims. The actual amount of interest that will ultimately be paid to these Commercial Creditors is uncertain due to pending litigation between Dow Silicones and the Commercial Creditors regarding the appropriate interest rates to be applied to outstanding obligations from the 1995 bankruptcy filing date through the Effective Date, as well as the presence of any recoverable fees, costs and expenses. Upon the Plan becoming effective, Dow Silicones paid approximately $1,500 million to the Commercial Creditors, representing principal and an amount of interest that Dow Silicones considers undisputed. On May 10, 2017, the U.S. District Court for the Eastern District of Michigan entered a stipulated order resolving pending discovery motions and established a discovery schedule for the Commercial Creditors matter. As a result, Dow Silicones and its third party consultants conducted further analysis of the Commercial Creditors claims and defenses. This analysis indicated the estimated remaining liability to Commercial Creditors to be within a range of $77 million to $260 million . No single amount within the range appears to be a better estimate than any other amount within the range. Therefore, Dow Silicones recorded the minimum liability within the range, which resulted in a decrease to the Commercial Creditor liability of $33 million in the second quarter of 2017, which was included in "Sundry income (expense) - net" in the consolidated statements of income. At June 30, 2018 , the liability related to Dow Silicones' potential obligation to pay additional interest to its Commercial Creditors in the Chapter 11 Proceeding was $80 million and is included in "Accrued and other current liabilities" in the consolidated balance sheets ( $78 million at December 31, 2017 ). The actual amount of interest that will be paid to these creditors is uncertain and will ultimately be resolved through continued proceedings in the District Court. Indemnifications In connection with the June 1, 2016, ownership restructure of Dow Silicones, the Company is indemnified by Corning for 50 percent of future losses associated with certain pre-closing liabilities, including the Implant Liability and Commercial Creditors matters described above, subject to certain conditions and limits. The maximum amount of indemnified losses which may be recovered are subject to a cap that declines over time. No indemnification assets were recorded at June 30, 2018 or December 31, 2017. Summary The amounts recorded by Dow Silicones for the Chapter 11 related matters described above were based on current, known facts, which management believes reflect reasonable and probable estimates of the liability. However, future events could cause the actual costs for Dow Silicones to be higher or lower than those projected or those recorded. Any such events could result in an increase or decrease in the recorded liability. Other Litigation Matters In addition to the specific matters described above, the Company is party to a number of other claims and lawsuits arising out of the normal course of business with respect to product liability, patent infringement, employment matters, governmental tax and regulation disputes, contract and commercial litigation, and other actions. Certain of these actions purport to be class actions and seek damages in very large amounts. All such claims are being contested. Dow has an active risk management program consisting of numerous insurance policies secured from many carriers at various times. These policies may provide coverage that could be utilized to minimize the financial impact, if any, of certain contingencies described above. It is the opinion of the Company’s management 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, financial condition and cash flows of the Company. Gain Contingency - Dow v. Nova Chemicals Corporation Patent Infringement Matter A summary of the Dow v. Nova Chemicals Corporation Patent Infringement Matter can be found in Note 16 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. On December 9, 2010, Dow filed suit in the Federal Court in Ontario, Canada ("Federal Court") alleging that Nova Chemicals Corporation ("Nova") was infringing the Company's Canadian polyethylene patent 2,106,705. Nova counterclaimed on the grounds of invalidity and non-infringement. On June 29, 2017, the Federal Court issued a Confidential Supplemental Judgment, concluding that Nova must pay $645 million Canadian dollars (equivalent to $495 million U.S. dollars) to Dow, plus pre- and post-judgment interest, for which Dow received payment of $501 million from Nova on July 6, 2017. Although Nova is appealing portions of the damages judgment, certain portions of it are indisputable and will be owed to Dow regardless of the outcome of any further appeals by Nova. As a result of these actions and in accordance with ASC 450-30 "Gain Contingencies," the Company recorded a $160 million pretax gain in the second quarter of 2017 of which $137 million was included in "Sundry income (expense) - net" and $23 million was included in "Selling, general and administrative expenses" in the consolidated statements of income. At June 30, 2018 , the Company had $341 million ( $341 million at December 31, 2017 ) included in "Other noncurrent obligations" related to the disputed portion of the damages judgment. Dow is confident of its chances of defending the entire judgment on appeal, particularly the trial court's determinations on important factual issues, which will be accorded deferential review on appeal. Guarantees The following table provides a summary of the final expiration, maximum future payments and recorded liability reflected in the consolidated balance sheets for each type of guarantee: Guarantees Jun 30, 2018 Dec 31, 2017 In millions Final Expiration Maximum Future Payments Recorded Liability Final Expiration Maximum Future Payments Recorded Liability Guarantees 2023 $ 4,572 $ 45 2023 $ 4,774 $ 49 Residual value guarantees 2027 895 132 2027 889 135 Total guarantees $ 5,467 $ 177 $ 5,663 $ 184 Guarantees Guarantees arise during the ordinary course of business from relationships with customers and nonconsolidated affiliates when the Company undertakes an obligation to guarantee the performance of others (via delivery of cash or other assets) if specified triggering events occur. With guarantees, such as commercial or financial contracts, non-performance by the guaranteed party triggers the obligation of the Company to make payments to the beneficiary of the guarantee. The majority of the Company’s guarantees relate to debt of nonconsolidated affiliates, which have expiration dates ranging from less than one year to five years, and trade financing transactions in Latin America, which typically expire within one year of inception. The Company’s current expectation is that future payment or performance related to the non-performance of others is considered remote. The Company has entered into guarantee agreements ("Guarantees") related to project financing for Sadara Chemical Company ("Sadara"), a nonconsolidated affiliate. The total of an Islamic bond and additional project financing (collectively “Total Project Financing”) obtained by Sadara is approximately $12.5 billion . Sadara had $12.4 billion of Total Project Financing outstanding at June 30, 2018 ( $12.4 billion at December 31, 2017 ). The Company's guarantee of the Total Project Financing is in proportion to the Company's 35 percent ownership interest in Sadara, or up to approximately $4.4 billion when the project financing is fully drawn. The Guarantees will be released upon completion of construction of the Sadara complex and satisfactory fulfillment of certain other conditions, including passage of an extensive operational testing program, which is expected by the middle of 2019, and must occur no later than December 2020. Residual Value Guarantees The Company provides guarantees related to leased assets specifying the residual value that will be available to the lessor at lease termination through sale of the assets to the lessee or third parties.

ACCUMULATED OTHER COMPREHENSIVE

ACCUMULATED OTHER COMPREHENSIVE LOSS	6 Months Ended
	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
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 six months ended June 30, 2018 and 2017 : Accumulated Other Comprehensive Loss 1 Unrealized Gains (Losses) on Investments Cumulative Translation Adj Pension and Other Postretire Benefits Derivative Instruments Total Accum Other Comp Loss In millions Balance at Jan 1, 2017 $ 43 $ (2,381 ) $ (7,389 ) $ (95 ) $ (9,822 ) Other comprehensive income (loss) before reclassifications 38 632 — (73 ) 597 Amounts reclassified from accumulated other comprehensive income (loss) (30 ) (6 ) 203 (16 ) 151 Net other comprehensive income (loss) $ 8 $ 626 $ 203 $ (89 ) $ 748 Balance at Jun 30, 2017 $ 51 $ (1,755 ) $ (7,186 ) $ (184 ) $ (9,074 ) Balance at Jan 1, 2018 2 $ 17 $ (1,481 ) $ (6,998 ) $ (109 ) $ (8,571 ) Other comprehensive income (loss) before reclassifications (41 ) (92 ) — 75 (58 ) Amounts reclassified from accumulated other comprehensive income (loss) 2 (2 ) 250 49 299 Net other comprehensive income (loss) $ (39 ) $ (94 ) $ 250 $ 124 $ 241 Reclassification of stranded tax effects 3 $ (1 ) $ (107 ) $ (927 ) $ (22 ) $ (1,057 ) Balance at Jun 30, 2018 $ (23 ) $ (1,682 ) $ (7,675 ) $ (7 ) $ (9,387 ) 1. Prior year amounts have been updated to conform with the current year presentation. 2. The beginning balance of "Unrealized gains (losses) on investments" was increased by $20 million to reflect the impact of the adoption of ASU 2016-01. See Notes 1 and 2 for additional information. 3. Amounts reclassified to retained earnings as a result of the adoption of ASU 2018-02. See Notes 1 and 2 for additional information. The tax effects on the net activity related to each component of other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017 were as follows: Tax Benefit (Expense) Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Unrealized gains (losses) on investments $ (3 ) $ (4 ) $ (9 ) $ 4 Cumulative translation adjustments 25 8 20 26 Pension and other postretirement benefit plans 34 48 62 95 Derivative instruments 12 (7 ) 9 (21 ) Tax benefit from income taxes related to other comprehensive income (loss) items $ 68 $ 45 $ 82 $ 104 A summary of the reclassifications out of AOCL for the three and six months ended June 30, 2018 and 2017 is provided as follows: Reclassifications Out of Accumulated Other Comprehensive Loss Three Months Ended Six Months Ended Consolidated Statements of Income Classification In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Unrealized gains (losses) on investments $ 1 $ (35 ) $ 3 $ (47 ) See (1) below Tax expense (benefit) — 13 (1 ) 17 See (2) below After tax $ 1 $ (22 ) $ 2 $ (30 ) Cumulative translation adjustments $ (2 ) $ (6 ) $ (2 ) $ (6 ) See (3) below Pension and other postretirement benefit plans $ 158 $ 149 $ 312 $ 298 See (4) below Tax benefit (34 ) (48 ) (62 ) (95 ) See (2) below After tax $ 124 $ 101 $ 250 $ 203 Derivative instruments $ 32 $ (8 ) $ 59 $ (15 ) See (5) below Tax benefit (5 ) — (10 ) (1 ) See (2) below After tax $ 27 $ (8 ) $ 49 $ (16 ) Total reclassifications for the period, after tax $ 150 $ 65 $ 299 $ 151 1. "Net sales" and "Sundry income (expense) - net." 2. "Provision for income taxes." 3. "Sundry income (expense) - net." 4. These AOCL components are included in the computation of net periodic benefit cost of the Company's defined benefit pension and other postretirement benefit plans. See Note 14 for additional information. 5. "Cost of sales," "Sundry income (expense) - net" and "Interest expense and amortization of debt discount."

NONCONTROLLING INTERESTS Noncon

NONCONTROLLING INTERESTS Noncontrolling Interests	6 Months Ended
	Jun. 30, 2018
Noncontrolling Interest [Abstract]
Noncontrolling Interest Disclosure [Text Block]	NONCONTROLLING INTERESTS Ownership interests in the Company's subsidiaries held by parties other than the Company are presented separately from the Company's equity in the consolidated balance sheets as "Noncontrolling interests." The amount of consolidated net income attributable to the Company and the noncontrolling interests are both presented on the face of the consolidated statements of income. The following table summarizes the activity for equity attributable to noncontrolling interests for the three and six months ended June 30, 2018 and 2017 : Noncontrolling Interests Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Balance at beginning of period $ 1,190 $ 1,274 $ 1,186 $ 1,242 Net income attributable to noncontrolling interests 31 38 66 65 Distributions to noncontrolling interests 1 (37 ) (27 ) (61 ) (48 ) Deconsolidation of noncontrolling interests 2 — (119 ) — (119 ) Cumulative translation adjustments (34 ) 3 (40 ) 28 Other 2 (1 ) 1 — Balance at end of period $ 1,152 $ 1,168 $ 1,152 $ 1,168 1. Net of dividends paid to a joint venture, which were reclassified to "Equity in earnings of nonconsolidated affiliates" in the consolidated statements of income, totaled $6 million for the three months ended June 30, 2018 ( $3 million for the three months ended June 30, 2017 ) and $6 million for the six months ended June 30, 2018 ( $3 million for the six months ended June 30, 2017 ). 2. On June 30, 2017, the Company sold its ownership interest in SKC Haas Display Films group of companies.

PENSION PLANS AND OTHER POSTRET

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS	6 Months Ended
	Jun. 30, 2018
Retirement Benefits [Abstract]
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS	PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS The following table provides the components of the Company's net periodic benefit cost for all significant plans: Net Periodic Benefit Cost for All Significant Plans Three Months Ended Six Months Ended In millions Jun 30, Jun 30, Jun 30, Jun 30, Defined Benefit Pension Plans: Service cost $ 132 $ 126 $ 265 $ 251 Interest cost 217 220 435 439 Expected return on plan assets (404 ) (385 ) (810 ) (768 ) Amortization of prior service credit (6 ) (6 ) (12 ) (12 ) Amortization of net loss 170 158 341 315 Curtailment/settlement 1 — (6 ) — (6 ) Net periodic benefit cost $ 109 $ 107 $ 219 $ 219 Other Postretirement Benefits: Service cost $ 3 $ 3 $ 6 $ 6 Interest cost 11 13 22 27 Amortization of net gain (6 ) (1 ) (12 ) (3 ) Net periodic benefit cost $ 8 $ 15 $ 16 $ 30 1. The 2017 impact relates to the curtailment and settlement of a pension plan in Korea. On January 1, 2018, the Company adopted ASU 2017-07, which impacted the presentation of the components of net periodic benefit cost in the consolidated statements of income. Net periodic benefit cost, other than the service cost component, is retrospectively included in "Sundry income (expense) - net" in the consolidated statements of income. See Notes 1 and 2 for additional information.

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2018
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION A summary of the Company's stock-based compensation plans can be found in Note 20 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . Stock Incentive Plan The Company grants stock-based compensation to employees and non-employee directors under The Dow Chemical Company Amended and Restated 2012 Stock Incentive Plan (the "2012 Plan"). In connection with the Merger, on August 31, 2017, all outstanding Dow stock options and deferred stock awards were converted into stock options and deferred stock awards with respect to DowDuPont common stock. The stock options and deferred stock awards have the same terms and conditions under the applicable plans and award agreements prior to the Merger. Dow and DuPont did not merge their stock-based compensation plans as a result of the Merger. The Dow and DuPont stock-based compensation plans were assumed by DowDuPont and continue in place with the ability to grant and issue DowDuPont common stock. Most of the Company's stock-based compensation awards are granted in the first quarter of each year. There was minimal grant activity in the second quarter of 2018 . In the first quarter of 2018 , the Company granted the following stock-based compensation awards to employees under the 2012 Plan: • 6.3 million stock options with a weighted-average exercise price of $71.85 per share and a weighted-average fair value of $15.46 per share; and • 1.9 million restricted stock units (formerly termed deferred stock) with a weighted-average fair value of $71.83 per share. Effective with the first quarter of 2018 grant, the Company began using the Black-Scholes option valuation model to estimate the fair value of stock options. This valuation methodology was adopted as a result of the Merger to align valuation methodologies with DuPont and better align with industry practice.

FINANCIAL INSTRUMENTS

FINANCIAL INSTRUMENTS	6 Months Ended
	Jun. 30, 2018
Investments, All Other Investments [Abstract]
Financial Instruments Disclosure [Text Block]	FINANCIAL INSTRUMENTS A summary of the Company's financial instruments, risk management policies, derivative instruments and hedging activities can be found in Note 21 of the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017. If applicable, updates have been included in the respective section below. The following table summarizes the fair value of financial instruments at June 30, 2018 and December 31, 2017 : Fair Value of Financial Instruments Jun 30, 2018 Dec 31, 2017 In millions Cost Gain Loss Fair Value Cost Gain Loss Fair Value Cash equivalents 1 $ 1,775 $ — $ — $ 1,775 $ 2,280 $ — $ — $ 2,280 Marketable securities $ 131 $ 2 $ — $ 133 $ 4 $ — $ — $ 4 Other investments: Debt securities: Government debt 2 $ 678 $ 8 $ (24 ) $ 662 $ 637 $ 13 $ (11 ) $ 639 Corporate bonds 913 22 (28 ) 907 704 32 (3 ) 733 Total debt securities $ 1,591 $ 30 $ (52 ) $ 1,569 $ 1,341 $ 45 $ (14 ) $ 1,372 Equity securities 3 $ 143 $ 20 $ (12 ) $ 151 $ 164 $ 2 $ (26 ) $ 140 Total other investments $ 1,734 $ 50 $ (64 ) $ 1,720 $ 1,505 $ 47 $ (40 ) $ 1,512 Total cash equivalents, marketable securities and other investments $ 3,640 $ 52 $ (64 ) $ 3,628 $ 3,789 $ 47 $ (40 ) $ 3,796 Long-term debt including debt due within one year 4 $ (19,959 ) $ 153 $ (1,309 ) $ (21,115 ) $ (20,517 ) $ 6 $ (2,104 ) $ (22,615 ) Derivatives relating to: Interest rates $ — $ — $ (39 ) $ (39 ) $ — $ — $ (4 ) $ (4 ) Commodities 5 — 159 (212 ) (53 ) — 130 (256 ) (126 ) Foreign currency — 183 (35 ) 148 — 22 (112 ) (90 ) Total derivatives $ — $ 342 $ (286 ) $ 56 $ — $ 152 $ (372 ) $ (220 ) 1. Prior period amounts were updated to conform with the current year presentation. 2. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 3. Equity securities with a readily determinable fair value. Presented in accordance with ASU 2016-01. See Notes 1 and 2 for additional information. 4. Cost includes fair value hedge adjustments of $18 million at June 30, 2018 and $19 million at December 31, 2017 on $2,990 million of debt. 5. Presented net of cash collateral. Debt Securities The Company's investments in debt securities are primarily classified as available-for-sale. The following table provides the investing results from available-for-sale securities for the six months ended June 30, 2018 and 2017 : Investing Results 1 Six Months Ended In millions Jun 30, Jun 30, Proceeds from sales of available-for-sale securities $ 625 $ 132 Gross realized gains $ 15 $ 3 Gross realized losses $ (18 ) $ — 1. Prior year amounts were updated to conform with the current year presentation as a result of the adoption of ASU 2016-01. Equity Securities The Company’s investments in equity securities with a readily determinable fair value totaled $151 million at June 30, 2018 ( $140 million at December 31, 2017 ). The net unrealized loss recognized in earnings on equity securities totaled $1 million for the three months ended June 30, 2018 and an unrecognized gain of $8 million for the six months ended June 30, 2018 . The aggregate carrying value of the Company’s investments in equity securities where fair value is not readily determinable totaled $56 million at June 30, 2018 , reflecting the cost of the investments. There were no adjustments to the cost basis of these investments for impairment or observable price changes for the three and six months ended June 30, 2018 . Derivatives Interest Rate Risk Management The main objective of interest rate risk management is to reduce the total funding cost to the Company and to alter the interest rate exposure to the desired risk profile. To achieve this objective, the Company hedges using interest rate swaps, “swaptions” and exchange-traded instruments. The Company had $2,536 million notional United States dollar equivalent open interest rate derivatives designated as cash flow hedges at June 30, 2018 , with a net loss included in AOCL of $30 million after tax (net loss of $3 million after tax at December 31, 2017 ). These contracts had maturity dates that extend to 2022 . The following tables provide the fair value and balance sheet classification of derivative instruments at June 30, 2018 and December 31, 2017 : Fair Value of Derivative Instruments Jun 30, 2018 In millions Balance Sheet Classification Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Interest rate swaps Deferred charges and other assets $ 1 $ (1 ) $ — Foreign currency contracts Other current assets 158 (42 ) 116 Commodity contracts Other current assets 53 (4 ) 49 Commodity contracts Deferred charges and other assets 104 (2 ) 102 Total $ 316 $ (49 ) $ 267 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets $ 129 $ (62 ) $ 67 Commodity contracts Other current assets 7 (4 ) 3 Commodity contracts Deferred charges and other assets 6 (1 ) 5 Total $ 142 $ (67 ) $ 75 Total asset derivatives $ 458 $ (116 ) $ 342 Liability derivatives: Derivatives designated as hedging instruments: Interest rate swaps Other noncurrent obligations $ 40 $ (1 ) $ 39 Foreign currency contracts Accrued and other current liabilities 44 (42 ) 2 Commodity contracts Accrued and other current liabilities 94 (5 ) 89 Commodity contracts Other noncurrent obligations 115 (2 ) 113 Total $ 293 $ (50 ) $ 243 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 95 $ (62 ) $ 33 Commodity contracts Accrued and other current liabilities 6 (4 ) 2 Commodity contracts Other noncurrent obligations 9 (1 ) 8 Total $ 110 $ (67 ) $ 43 Total liability derivatives $ 403 $ (117 ) $ 286 1. Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between Dow and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty. Fair Value of Derivative Instruments Dec 31, 2017 In millions Balance Sheet Classification Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 51 $ (46 ) $ 5 Commodity contracts Other current assets 20 (4 ) 16 Commodity contracts Deferred charges and other assets 70 (5 ) 65 Total $ 141 $ (55 ) $ 86 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets $ 75 $ (58 ) $ 17 Commodity contracts Other current assets 50 (5 ) 45 Commodity contracts Deferred charges and other assets 7 (3 ) 4 Total $ 132 $ (66 ) $ 66 Total asset derivatives $ 273 $ (121 ) $ 152 Liability derivatives: Derivatives designated as hedging instruments: Interest rate swaps Other noncurrent obligations $ 4 $ — $ 4 Foreign currency contracts Accrued and other current liabilities 109 (46 ) 63 Commodity contracts Accrued and other current liabilities 96 (15 ) 81 Commodity contracts Other noncurrent obligations 143 (12 ) 131 Total $ 352 $ (73 ) $ 279 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 107 $ (58 ) $ 49 Commodity contracts Accrued and other current liabilities 45 (6 ) 39 Commodity contracts Other noncurrent obligations 8 (3 ) 5 Total $ 160 $ (67 ) $ 93 Total liability derivatives $ 512 $ (140 ) $ 372 1. Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between Dow and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty. Assets and liabilities related to forward contracts, interest rate swaps, currency swaps, options and other conditional or exchange contracts executed with the same counterparty under a master netting arrangement are netted. Collateral accounts are netted with corresponding liabilities. The Company posted cash collateral of $6 million at June 30, 2018 ( $21 million at December 31, 2017 ). Income Statement Effect of Derivative Instruments Foreign currency derivatives not designated as hedges are used to offset foreign exchange gains or losses resulting from the underlying exposures of foreign currency denominated assets and liabilities. The amount charged on a pretax basis related to foreign currency derivatives not designated as a hedge, which was included in “Sundry income (expense) - net” in the consolidated statements of income, was a gain of $82 million for the three months ended June 30, 2018 ( $193 million loss for the three months ended June 30, 2017 ) and a gain of $65 million for the six months ended June 30, 2018 ( $160 million loss for the six months ended June 30, 2017 ). The income statement effects of other derivatives were immaterial. Reclassification from AOCL The net after-tax amounts to be reclassified from AOCL to income within the next 12 months are a $1 million loss for interest rate contracts, a $22 million loss for commodity contracts and a $9 million gain for foreign currency contracts.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	FAIR VALUE MEASUREMENTS A summary of the Company's recurring and nonrecurring fair value measurements can be found in Note 22 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2017 . If applicable, updates have been included in the respective section below. Fair Value Measurements on a Recurring Basis The following tables summarize the bases used to measure certain assets and liabilities at fair value on a recurring basis: Basis of Fair Value Measurements on a Recurring Basis at Jun 30, 2018 In millions Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets at fair value: Cash equivalents 1 $ — $ 1,775 $ — $ 1,775 Marketable securities — 133 — 133 Interests in trade accounts receivable conduits 2 — — 24 24 Equity securities 3 22 129 — 151 Debt securities: 3 Government debt 4 — 662 — 662 Corporate bonds — 907 — 907 Derivatives relating to: 5 Interest rates — 1 — 1 Commodities 39 131 — 170 Foreign currency — 287 — 287 Total assets at fair value $ 61 $ 4,025 $ 24 $ 4,110 Liabilities at fair value: Long-term debt including debt due within one year 6 $ — $ 21,115 $ — $ 21,115 Derivatives relating to: 5 Interest rates — 40 — 40 Commodities 20 204 — 224 Foreign currency — 139 — 139 Total liabilities at fair value $ 20 $ 21,498 $ — $ 21,518 1. Treasury bills, time deposits, and money market funds included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value. 2. Included in "Accounts and notes receivable - Other" in the consolidated balance sheets. See Note 9 for additional information on transfers of financial assets. 3. The Company’s investments in debt securities, which are primarily available-for-sale, and equity securities are included in “Other investments” in the consolidated balance sheets. 4. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 5. See Note 16 for the classification of derivatives in the consolidated balance sheets. 6. See Note 16 for information on fair value measurements of long-term debt. Basis of Fair Value Measurements on a Recurring Basis at Dec 31, 2017 In millions Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets at fair value: Cash equivalents 1 $ — $ 2,280 $ — $ 2,280 Marketable securities — 4 — 4 Interests in trade accounts receivable conduits 2 — — 677 677 Equity securities 3 88 52 — 140 Debt securities: 3 Government debt 4 — 639 — 639 Corporate bonds — 733 — 733 Derivatives relating to: 5 Commodities 47 100 — 147 Foreign currency — 126 — 126 Total assets at fair value $ 135 $ 3,934 $ 677 $ 4,746 Liabilities at fair value: Long-term debt including debt due within one year 6 $ — $ 22,615 $ — $ 22,615 Derivatives relating to: 5 Interest rates — 4 — 4 Commodities 31 261 — 292 Foreign currency — 216 — 216 Total liabilities at fair value $ 31 $ 23,096 $ — $ 23,127 1. Treasury bills, time deposits, and money market funds included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value. 2. Included in "Accounts and notes receivable - Other" in the consolidated balance sheets. See Note 9 for additional information on transfers of financial assets. 3. The Company’s investments in debt securities, which are primarily available-for-sale, and equity securities are included in “Other investments” in the consolidated balance sheets. 4. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 5. See Note 16 for the classification of derivatives in the consolidated balance sheets. 6. See Note 16 for information on fair value measurements of long-term debt. The following table summarizes the changes in fair value measurements of interests held in trade receivable conduits using Level 3 inputs for the three and six months ended June 30, 2018 and 2017 : Fair Value Measurements Using Level 3 Inputs for Interests Held in Trade Receivable Conduits 1 Three Months Ended Six Months Ended Jun 30, Jun 30, Jun 30, Jun 30, In millions Balance at beginning of period $ 234 $ 1,663 $ 677 $ 1,237 Gain (loss) included in earnings 2 1 (2 ) 3 (2 ) Purchases 3 — 1,386 — 2,363 Settlements 3 (211 ) (1,363 ) (656 ) (1,914 ) Balance at end of period $ 24 $ 1,684 $ 24 $ 1,684 1. Included in “Accounts and notes receivable – Other” in the consolidated balance sheets. 2. Included in “Selling, general and administrative expenses” in the consolidated statements of income. 3. Presented in accordance with ASU 2016-15. See Notes 1 and 2 for additional information. In connection with the review and implementation of ASU 2016-15, the Company also changed the prior year value of “Purchases” and "Settlements" due to additional interpretive guidance of the required method for calculating the cash received from beneficial interests in the conduits. Fair Value Measurements on a Nonrecurring Basis As part of the Synergy Program, the Company has or will shut down a number of manufacturing, research and development ("R&D") and corporate facilities around the world. In the first six months of 2018, manufacturing facilities and related assets and R&D facilities associated with this plan were written down to zero. The impairment charges related to the Synergy Program, totaling $75 million , were included in "Restructuring and asset related charges (credits) - net" in the consolidated statements of income. See Note 4 for additional information on the Company's restructuring activities.

VARIABLE INTEREST ENTITIES

VARIABLE INTEREST ENTITIES	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
VARIABLE INTEREST ENTITIES	VARIABLE INTEREST ENTITIES A summary of the Company's variable interest entities ("VIEs") can be found in Note 23 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . Assets and Liabilities of Consolidated VIEs The Company's consolidated financial statements include the assets, liabilities and results of operations of VIEs for which the Company is the primary beneficiary. The other equity holders’ interests are reflected in “Net income attributable to noncontrolling interests” in the consolidated statements of income and "Noncontrolling interests" in the consolidated balance sheets. The following table summarizes the carrying amounts of these entities' assets and liabilities included in the Company’s consolidated balance sheets at June 30, 2018 and December 31, 2017 : Assets and Liabilities of Consolidated VIEs Jun 30, Dec 31, In millions Cash and cash equivalents $ 116 $ 107 Other current assets 129 131 Net property 786 907 Other noncurrent assets 47 50 Total assets 1 $ 1,078 $ 1,195 Current liabilities $ 325 $ 303 Long-term debt 147 249 Other noncurrent obligations 35 41 Total liabilities 2 $ 507 $ 593 1. All assets were restricted at June 30, 2018 and December 31, 2017 . 2. All liabilities were nonrecourse at June 30, 2018 and December 31, 2017 . In addition, the Company holds a variable interest in an entity created to monetize accounts receivable of select European entities. Dow is the primary beneficiary of this entity as a result of holding subordinated notes while maintaining servicing responsibilities for the accounts receivable. The carrying amounts of assets and liabilities included in the Company’s consolidated balance sheets pertaining to this entity were current assets of $7 million ( zero restricted) at June 30, 2018 ( $671 million , zero restricted, at December 31, 2017 ), and current liabilities of less than $1 million ( zero nonrecourse) at June 30, 2018 ( less than $1 million , zero nonrecourse, at December 31, 2017 ). Amounts presented in the consolidated balance sheets and the table above as restricted assets or nonrecourse obligations relating to consolidated VIEs at June 30, 2018 and December 31, 2017 , are adjusted for intercompany eliminations and parental guarantees. Nonconsolidated VIEs The following table summarizes the carrying amounts of assets and liabilities included in the consolidated balance sheets at June 30, 2018 and December 31, 2017 , related to variable interests in joint ventures or entities for which the Company is not the primary beneficiary. The Company's maximum exposure to loss is the same as the carrying amounts, unless otherwise noted below. Carrying Amounts of Assets and Liabilities Related to Nonconsolidated VIEs Jun 30, Dec 31, In millions Description of asset or liability Hemlock Semiconductor L.L.C. Equity method investment 1 $ (717 ) $ (752 ) Silicon joint ventures Equity method investments 2 $ 102 $ 103 AgroFresh Solutions, Inc Equity method investment 2 $ 42 $ 51 Other receivable 3 $ — $ 4 1. Classified as "Other noncurrent obligations" in the consolidated balance sheets. The Company's maximum exposure to loss was zero at June 30, 2018 ( zero at December 31, 2017 ). 2. Classified as "Investment in nonconsolidated affiliates" in the consolidated balance sheets. 3. Classified as "Accounts and notes receivable - Other" in the consolidated balance sheets.

RELATD PARTY TRANSACTIONS (Note

RELATD PARTY TRANSACTIONS (Notes)	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS Effective with the Merger, Dow reports transactions with DowDuPont and DuPont and its affiliates as related party transactions. The Company has committed to fund a portion of DowDuPont's share repurchases, dividends paid to common stockholders and certain governance expenses. Funding is accomplished through intercompany loans. On a quarterly basis, the Company's Board reviews and determines a dividend distribution to DowDuPont to settle the intercompany loans. The dividend distribution considers the level of the Company’s earnings and cash flows and the outstanding intercompany loan balances. In the second quarter of 2018 , the Company declared and paid dividends to DowDuPont of $1,053 million ( $2,110 million for the first six months of 2018 ). At June 30, 2018 , the Company's outstanding intercompany loan balance was insignificant (insignificant at December 31, 2017 ). In addition, at June 30, 2018 , Dow had a receivable related to a tax sharing agreement with DowDuPont of $388 million ( $354 million at December 31, 2017 ), included in "Accounts and notes receivable - Other" in the consolidated balance sheets. On June 25, 2018, DowDuPont declared a dividend of $0.38 per share, payable on September 14, 2018, to its shareholders of record on August 31, 2018. Dow’s portion of this shareholder dividend has not yet been determined. The Company expects to declare and pay a dividend to DowDuPont in September 2018. Dow sells to and procures from DuPont and its affiliates certain feedstocks, energy and raw materials that are consumed in each company's manufacturing process. The following table presents revenue earned and expenses incurred related to transactions with DuPont and its affiliates: Sales to DuPont and its Affiliates Three Months Ended Jun 30, 2018 Six Months Ended Jun 30, 2018 In millions Net sales $ 64 $ 107 Cost of sales $ 42 $ 68 Purchases from DuPont and its affiliates were $34 million in the second quarter of 2018 and $78 million in the first six months of 2018 .

CONSOLIDATED FINANCIAL STATEM27

CONSOLIDATED FINANCIAL STATEMENTS Change in Accounting Policy (Policies)	6 Months Ended
	Jun. 30, 2018
Change in Accounting Policy [Abstract]
Revenue Recognition, Policy [Policy Text Block]	Significant Accounting Policy Updates The Company's significant accounting policy for revenue was updated as a result of the adoption of Topic 606: Revenue The Company recognizes revenue when its customer obtains control of promised goods or services in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. To determine revenue recognition for the arrangements that the Company determines are within the scope of Topic 606, the Company performs the following five steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract and (5) recognize revenue when (or as) the entity satisfies a performance obligation. See Note 3 for additional information on revenue recognition. Revenue related to the Company's insurance operations includes third-party insurance premiums, which are earned over the terms of the related insurance policies and reinsurance contracts.
Income Tax, Policy [Policy Text Block]	As a result of the adoption of ASU 2018-02, the Company's significant accounting policy for income taxes was updated to indicate the Company uses the portfolio approach for releasing income tax effects from accumulated other comprehensive loss.

REVENUE (Tables)

REVENUE (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table Text Block]	The Company disaggregates its revenue from contracts with customers by principal product group and geographic region, as the Company believes it best depicts the nature, amount, timing and uncertainty of its revenue and cash flows. See details in the tables below: Net Trade Revenue by Principal Product Group Three Months Ended Jun 30, 2018 Six Months Ended In millions Coatings & Performance Monomers $ 1,103 $ 2,057 Construction Chemicals 226 408 Consumer Solutions 1,516 2,879 Crop Protection 1,436 2,558 Electronics & Imaging 652 1,279 Hydrocarbons & Energy 1,833 3,612 Industrial Biosciences 132 267 Industrial Solutions 1,198 2,358 Nutrition & Health 157 313 Packaging and Specialty Plastics 3,886 7,740 Polyurethanes & CAV 2,460 4,831 Safety & Construction 523 967 Seed 269 640 Transportation & Advanced Polymers 326 630 Corporate 73 146 Other 3 7 Total $ 15,793 $ 30,692 Net Trade Revenue by Geographic Region Three Months Ended Jun 30, 2018 Six Months Ended In millions U.S. & Canada $ 5,765 $ 11,233 EMEA 1 4,739 9,504 Asia Pacific 3,675 6,931 Latin America 1,614 3,024 Total $ 15,793 $ 30,692 1. Europe, Middle East and Africa.
Contract with Customer, Asset and Liability [Table Text Block]	The following table summarizes the contract balances at June 30, 2018 and December 31, 2017: Contract Balances Jun 30, 2018 Topic 606 Adjustments Jan 1, 2018 Dec 31, 2017 In millions Accounts and notes receivable - Trade $ 8,951 $ — $ 7,338 Contract assets - current 1 $ 20 $ 18 $ — Contract assets - noncurrent 2 $ 45 $ 43 $ — Contract liabilities - current 3 $ 152 $ 50 $ 117 Contract liabilities - noncurrent 4 $ 1,454 $ 117 $ 1,365 1. Included in "Other current assets" in the consolidated balance sheets. 2. Included in "Deferred charges and other assets" in the consolidated balance sheets. 3. Included in "Accrued and other current liabilities" in the consolidated balance sheets. 4. Included in "Other noncurrent obligations" in the consolidated balance sheets.

Restructuring and Asset Relat29

Restructuring and Asset Related Charges - Net (Tables)	6 Months Ended
	Jun. 30, 2018
DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the activities related to the Synergy Program. At June 30, 2018 , $250 million was included in "Accrued and other current liabilities" ( $231 million at December 31, 2017 ) and $108 million was included in "Other noncurrent obligations" ( $118 million at December 31, 2017 ) in the consolidated balance sheets. Synergy Program Severance and Related Benefit Costs Asset Write-downs and Write-offs Costs Associated with Exit and Disposal Activities Total In millions 2017 restructuring charges $ 357 $ 287 $ 43 $ 687 Charges against the reserve — (287 ) — (287 ) Cash payments (51 ) — — (51 ) Reserve balance at Dec 31, 2017 $ 306 $ — $ 43 $ 349 2018 restructuring charges 1 142 75 34 251 Charges against the reserve — (75 ) — (75 ) Cash payments (137 ) — (30 ) (167 ) Reserve balance at Jun 30, 2018 $ 311 $ — $ 47 $ 358 1. Included in "Restructuring and asset related charges (credits) - net" in the consolidated statements of income.
2016 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the activities related to the Company's 2016 restructuring reserve: 2016 Restructuring Severance and Related Benefit Costs Costs Associated with Exit and Disposal Activities Total In millions Reserve balance at Dec 31, 2017 $ 51 $ 17 $ 68 Adjustments to the reserve 1 (8 ) 14 6 Cash payments (37 ) (4 ) (41 ) Reserve balance at Jun 30, 2018 $ 6 $ 27 $ 33 1. Included in "Restructuring and asset related charges (credits) - net" in the consolidated statements of income.

SUPPLEMENTARY INFORMATION (Tabl

SUPPLEMENTARY INFORMATION (Tables)	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Cash and Cash Equivalents [Table Text Block]	The following table provides a reconciliation of cash, cash equivalents and restricted cash presented in the consolidated balance sheets to the total cash, cash equivalents and restricted cash presented in the consolidated statements of cash flows: Reconciliation of Cash, Cash Equivalents and Restricted Cash Jun 30, 2018 Dec 31, 2017 Jun 30, 2017 In millions Cash and cash equivalents $ 4,823 $ 6,188 $ 6,218 Restricted cash 1 45 19 15 Total cash, cash equivalents and restricted cash $ 4,868 $ 6,207 $ 6,233 1. Included in "Other current assets" in the consolidated balance sheets.

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Jun. 30, 2018
Inventory Disclosure [Abstract]
Schedule of Inventory, Current [Table Text Block]	The following table provides a breakdown of inventories: Inventories Jun 30, 2018 Dec 31, 2017 In millions Finished goods $ 5,677 $ 5,213 Work in process 2,239 1,747 Raw materials 961 898 Supplies 870 848 Total $ 9,747 $ 8,706 Adjustment of inventories to a LIFO basis (401 ) (330 ) Total inventories 1 $ 9,346 $ 8,376 1. In the first quarter of 2018, the Company adopted Topic 606, which resulted in a cumulative effect change to the Company's January 1, 2018 "Inventories" balance. See Note 1 for additional information.

GOODWILL AND OTHER INTANGIBLE32

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of goodwill	The following table shows the carrying amount of goodwill: Goodwill In millions Net goodwill at Dec 31, 2017 $ 13,938 Foreign currency impact (44 ) Net goodwill at Jun 30, 2018 $ 13,894
Schedule of other intangible assets	The following table provides information regarding the Company’s other intangible assets: Other Intangible Assets Jun 30, 2018 Dec 31, 2017 In millions Gross Carrying Amount Accum Amort Net Gross Carrying Amount Accum Amort Net Intangible assets with finite lives: Developed technology $ 3,254 $ (1,804 ) $ 1,450 $ 3,263 $ (1,690 ) $ 1,573 Software 1,479 (833 ) 646 1,420 (780 ) 640 Trademarks/tradenames 689 (594 ) 95 697 (570 ) 127 Customer-related 4,945 (2,030 ) 2,915 5,035 (1,965 ) 3,070 Other 243 (163 ) 80 245 (156 ) 89 Total other intangible assets, finite lives $ 10,610 $ (5,424 ) $ 5,186 $ 10,660 $ (5,161 ) $ 5,499 In-process research and development 50 — 50 50 — 50 Total other intangible assets $ 10,660 $ (5,424 ) $ 5,236 $ 10,710 $ (5,161 ) $ 5,549
Schedule of amortization expense	The following table provides information regarding amortization expense related to other intangible assets: Amortization Expense Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Other intangible assets, excluding software $ 155 $ 157 $ 314 $ 312 Software, included in “Cost of sales” $ 25 $ 20 $ 48 $ 40
Schedule of estimated future amortization expense	Total estimated amortization expense for 2018 and the five succeeding fiscal years is as follows: Estimated Amortization Expense In millions 2018 $ 718 2019 $ 672 2020 $ 635 2021 $ 603 2022 $ 532 2023 $ 508

TRANSFERS OF FINANCIAL ASSETS (

TRANSFERS OF FINANCIAL ASSETS (Tables)	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table Text Block]	Interests Held Jun 30, Dec 31, In millions Carrying value of interests held $ 24 $ 677 Percentage of anticipated credit losses 36.81 % 2.64 % Impact to carrying value - 10% adverse change $ — $ — Impact to carrying value - 20% adverse change $ — $ 1
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Table Text Block]	Following is an analysis of certain cash flows between the Company and the conduits: Cash Proceeds Three Months Ended Six Months Ended In millions Jun 30, Jun 30, Jun 30, Jun 30, Collections reinvested in revolving receivables $ — $ 6,051 $ — $ 11,732 Interests in conduits 1 $ 211 $ 1,363 $ 656 $ 1,914 1. Presented in "Investing Activities" in the consolidated statements of cash flows in accordance with ASU 2016-15. See Notes 1 and 2 for additional information. In connection with the review and implementation of ASU 2016-15, the Company also changed the prior year value of “Interests in conduits” due to additional interpretive guidance of the required method for calculating the cash received from beneficial interests in the conduits.
Schedule of Quantitative Information about Derecognized Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Table Text Block]	Following is additional information related to the sale of receivables under these facilities: Trade Accounts Receivable Sold Jun 30, Dec 31, In millions Delinquencies on sold receivables still outstanding $ 36 $ 82 Trade accounts receivable outstanding and derecognized $ 36 $ 612

COMMITMENTS AND CONTINGENT LI34

COMMITMENTS AND CONTINGENT LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Table of Guarantees by Type	The following table provides a summary of the final expiration, maximum future payments and recorded liability reflected in the consolidated balance sheets for each type of guarantee: Guarantees Jun 30, 2018 Dec 31, 2017 In millions Final Expiration Maximum Future Payments Recorded Liability Final Expiration Maximum Future Payments Recorded Liability Guarantees 2023 $ 4,572 $ 45 2023 $ 4,774 $ 49 Residual value guarantees 2027 895 132 2027 889 135 Total guarantees $ 5,467 $ 177 $ 5,663 $ 184

ACCUMULATED OTHER COMPREHENSI35

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)	6 Months Ended
	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Components of Other Comprehensive Income (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 six months ended June 30, 2018 and 2017 : Accumulated Other Comprehensive Loss 1 Unrealized Gains (Losses) on Investments Cumulative Translation Adj Pension and Other Postretire Benefits Derivative Instruments Total Accum Other Comp Loss In millions Balance at Jan 1, 2017 $ 43 $ (2,381 ) $ (7,389 ) $ (95 ) $ (9,822 ) Other comprehensive income (loss) before reclassifications 38 632 — (73 ) 597 Amounts reclassified from accumulated other comprehensive income (loss) (30 ) (6 ) 203 (16 ) 151 Net other comprehensive income (loss) $ 8 $ 626 $ 203 $ (89 ) $ 748 Balance at Jun 30, 2017 $ 51 $ (1,755 ) $ (7,186 ) $ (184 ) $ (9,074 ) Balance at Jan 1, 2018 2 $ 17 $ (1,481 ) $ (6,998 ) $ (109 ) $ (8,571 ) Other comprehensive income (loss) before reclassifications (41 ) (92 ) — 75 (58 ) Amounts reclassified from accumulated other comprehensive income (loss) 2 (2 ) 250 49 299 Net other comprehensive income (loss) $ (39 ) $ (94 ) $ 250 $ 124 $ 241 Reclassification of stranded tax effects 3 $ (1 ) $ (107 ) $ (927 ) $ (22 ) $ (1,057 ) Balance at Jun 30, 2018 $ (23 ) $ (1,682 ) $ (7,675 ) $ (7 ) $ (9,387 ) 1. Prior year amounts have been updated to conform with the current year presentation. 2. The beginning balance of "Unrealized gains (losses) on investments" was increased by $20 million to reflect the impact of the adoption of ASU 2016-01. See Notes 1 and 2 for additional information. 3. Amounts reclassified to retained earnings as a result of the adoption of ASU 2018-02. See Notes 1 and 2 for additional information. The tax effects on the net activity related to each component of other comprehensive income (loss) for the three and six months ended June 30, 2018 and 2017 were as follows: Tax Benefit (Expense) Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Unrealized gains (losses) on investments $ (3 ) $ (4 ) $ (9 ) $ 4 Cumulative translation adjustments 25 8 20 26 Pension and other postretirement benefit plans 34 48 62 95 Derivative instruments 12 (7 ) 9 (21 ) Tax benefit from income taxes related to other comprehensive income (loss) items $ 68 $ 45 $ 82 $ 104
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income	A summary of the reclassifications out of AOCL for the three and six months ended June 30, 2018 and 2017 is provided as follows: Reclassifications Out of Accumulated Other Comprehensive Loss Three Months Ended Six Months Ended Consolidated Statements of Income Classification In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Unrealized gains (losses) on investments $ 1 $ (35 ) $ 3 $ (47 ) See (1) below Tax expense (benefit) — 13 (1 ) 17 See (2) below After tax $ 1 $ (22 ) $ 2 $ (30 ) Cumulative translation adjustments $ (2 ) $ (6 ) $ (2 ) $ (6 ) See (3) below Pension and other postretirement benefit plans $ 158 $ 149 $ 312 $ 298 See (4) below Tax benefit (34 ) (48 ) (62 ) (95 ) See (2) below After tax $ 124 $ 101 $ 250 $ 203 Derivative instruments $ 32 $ (8 ) $ 59 $ (15 ) See (5) below Tax benefit (5 ) — (10 ) (1 ) See (2) below After tax $ 27 $ (8 ) $ 49 $ (16 ) Total reclassifications for the period, after tax $ 150 $ 65 $ 299 $ 151 1. "Net sales" and "Sundry income (expense) - net." 2. "Provision for income taxes." 3. "Sundry income (expense) - net." 4. These AOCL components are included in the computation of net periodic benefit cost of the Company's defined benefit pension and other postretirement benefit plans. See Note 14 for additional information. 5. "Cost of sales," "Sundry income (expense) - net" and "Interest expense and amortization of debt discount."

NONCONTROLLING INTERESTS Nonc36

NONCONTROLLING INTERESTS Noncontrolling Interests (Tables)	6 Months Ended
	Jun. 30, 2018
Noncontrolling Interest [Abstract]
Noncontrolling Interests [Table Text Block]	The following table summarizes the activity for equity attributable to noncontrolling interests for the three and six months ended June 30, 2018 and 2017 : Noncontrolling Interests Three Months Ended Six Months Ended In millions Jun 30, 2018 Jun 30, 2017 Jun 30, 2018 Jun 30, 2017 Balance at beginning of period $ 1,190 $ 1,274 $ 1,186 $ 1,242 Net income attributable to noncontrolling interests 31 38 66 65 Distributions to noncontrolling interests 1 (37 ) (27 ) (61 ) (48 ) Deconsolidation of noncontrolling interests 2 — (119 ) — (119 ) Cumulative translation adjustments (34 ) 3 (40 ) 28 Other 2 (1 ) 1 — Balance at end of period $ 1,152 $ 1,168 $ 1,152 $ 1,168 1. Net of dividends paid to a joint venture, which were reclassified to "Equity in earnings of nonconsolidated affiliates" in the consolidated statements of income, totaled $6 million for the three months ended June 30, 2018 ( $3 million for the three months ended June 30, 2017 ) and $6 million for the six months ended June 30, 2018 ( $3 million for the six months ended June 30, 2017 ). 2. On June 30, 2017, the Company sold its ownership interest in SKC Haas Display Films group of companies.

PENSION PLANS AND OTHER POSTR37

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)	6 Months Ended
	Jun. 30, 2018
Retirement Benefits [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	The following table provides the components of the Company's net periodic benefit cost for all significant plans: Net Periodic Benefit Cost for All Significant Plans Three Months Ended Six Months Ended In millions Jun 30, Jun 30, Jun 30, Jun 30, Defined Benefit Pension Plans: Service cost $ 132 $ 126 $ 265 $ 251 Interest cost 217 220 435 439 Expected return on plan assets (404 ) (385 ) (810 ) (768 ) Amortization of prior service credit (6 ) (6 ) (12 ) (12 ) Amortization of net loss 170 158 341 315 Curtailment/settlement 1 — (6 ) — (6 ) Net periodic benefit cost $ 109 $ 107 $ 219 $ 219 Other Postretirement Benefits: Service cost $ 3 $ 3 $ 6 $ 6 Interest cost 11 13 22 27 Amortization of net gain (6 ) (1 ) (12 ) (3 ) Net periodic benefit cost $ 8 $ 15 $ 16 $ 30 1. The 2017 impact relates to the curtailment and settlement of a pension plan in Korea.

FINANCIAL INSTRUMENTS (Tables)

FINANCIAL INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, All Other Investments [Abstract]
Fair Value of Financial Instruments	The following table summarizes the fair value of financial instruments at June 30, 2018 and December 31, 2017 : Fair Value of Financial Instruments Jun 30, 2018 Dec 31, 2017 In millions Cost Gain Loss Fair Value Cost Gain Loss Fair Value Cash equivalents 1 $ 1,775 $ — $ — $ 1,775 $ 2,280 $ — $ — $ 2,280 Marketable securities $ 131 $ 2 $ — $ 133 $ 4 $ — $ — $ 4 Other investments: Debt securities: Government debt 2 $ 678 $ 8 $ (24 ) $ 662 $ 637 $ 13 $ (11 ) $ 639 Corporate bonds 913 22 (28 ) 907 704 32 (3 ) 733 Total debt securities $ 1,591 $ 30 $ (52 ) $ 1,569 $ 1,341 $ 45 $ (14 ) $ 1,372 Equity securities 3 $ 143 $ 20 $ (12 ) $ 151 $ 164 $ 2 $ (26 ) $ 140 Total other investments $ 1,734 $ 50 $ (64 ) $ 1,720 $ 1,505 $ 47 $ (40 ) $ 1,512 Total cash equivalents, marketable securities and other investments $ 3,640 $ 52 $ (64 ) $ 3,628 $ 3,789 $ 47 $ (40 ) $ 3,796 Long-term debt including debt due within one year 4 $ (19,959 ) $ 153 $ (1,309 ) $ (21,115 ) $ (20,517 ) $ 6 $ (2,104 ) $ (22,615 ) Derivatives relating to: Interest rates $ — $ — $ (39 ) $ (39 ) $ — $ — $ (4 ) $ (4 ) Commodities 5 — 159 (212 ) (53 ) — 130 (256 ) (126 ) Foreign currency — 183 (35 ) 148 — 22 (112 ) (90 ) Total derivatives $ — $ 342 $ (286 ) $ 56 $ — $ 152 $ (372 ) $ (220 ) 1. Prior period amounts were updated to conform with the current year presentation. 2. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 3. Equity securities with a readily determinable fair value. Presented in accordance with ASU 2016-01. See Notes 1 and 2 for additional information. 4. Cost includes fair value hedge adjustments of $18 million at June 30, 2018 and $19 million at December 31, 2017 on $2,990 million of debt. 5. Presented net of cash collateral
Investing Results	The following table provides the investing results from available-for-sale securities for the six months ended June 30, 2018 and 2017 : Investing Results 1 Six Months Ended In millions Jun 30, Jun 30, Proceeds from sales of available-for-sale securities $ 625 $ 132 Gross realized gains $ 15 $ 3 Gross realized losses $ (18 ) $ — 1. Prior year amounts were updated to conform with the current year presentation as a result of the adoption of ASU 2016-01.
Schedule Fair Values of Derivative Instruments	The following tables provide the fair value and balance sheet classification of derivative instruments at June 30, 2018 and December 31, 2017 : Fair Value of Derivative Instruments Jun 30, 2018 In millions Balance Sheet Classification Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Interest rate swaps Deferred charges and other assets $ 1 $ (1 ) $ — Foreign currency contracts Other current assets 158 (42 ) 116 Commodity contracts Other current assets 53 (4 ) 49 Commodity contracts Deferred charges and other assets 104 (2 ) 102 Total $ 316 $ (49 ) $ 267 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets $ 129 $ (62 ) $ 67 Commodity contracts Other current assets 7 (4 ) 3 Commodity contracts Deferred charges and other assets 6 (1 ) 5 Total $ 142 $ (67 ) $ 75 Total asset derivatives $ 458 $ (116 ) $ 342 Liability derivatives: Derivatives designated as hedging instruments: Interest rate swaps Other noncurrent obligations $ 40 $ (1 ) $ 39 Foreign currency contracts Accrued and other current liabilities 44 (42 ) 2 Commodity contracts Accrued and other current liabilities 94 (5 ) 89 Commodity contracts Other noncurrent obligations 115 (2 ) 113 Total $ 293 $ (50 ) $ 243 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 95 $ (62 ) $ 33 Commodity contracts Accrued and other current liabilities 6 (4 ) 2 Commodity contracts Other noncurrent obligations 9 (1 ) 8 Total $ 110 $ (67 ) $ 43 Total liability derivatives $ 403 $ (117 ) $ 286 1. Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between Dow and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty. Fair Value of Derivative Instruments Dec 31, 2017 In millions Balance Sheet Classification Gross Counterparty and Cash Collateral Netting 1 Net Amounts Included in the Consolidated Balance Sheet Asset derivatives: Derivatives designated as hedging instruments: Foreign currency contracts Other current assets $ 51 $ (46 ) $ 5 Commodity contracts Other current assets 20 (4 ) 16 Commodity contracts Deferred charges and other assets 70 (5 ) 65 Total $ 141 $ (55 ) $ 86 Derivatives not designated as hedging instruments: Foreign currency contracts Other current assets $ 75 $ (58 ) $ 17 Commodity contracts Other current assets 50 (5 ) 45 Commodity contracts Deferred charges and other assets 7 (3 ) 4 Total $ 132 $ (66 ) $ 66 Total asset derivatives $ 273 $ (121 ) $ 152 Liability derivatives: Derivatives designated as hedging instruments: Interest rate swaps Other noncurrent obligations $ 4 $ — $ 4 Foreign currency contracts Accrued and other current liabilities 109 (46 ) 63 Commodity contracts Accrued and other current liabilities 96 (15 ) 81 Commodity contracts Other noncurrent obligations 143 (12 ) 131 Total $ 352 $ (73 ) $ 279 Derivatives not designated as hedging instruments: Foreign currency contracts Accrued and other current liabilities $ 107 $ (58 ) $ 49 Commodity contracts Accrued and other current liabilities 45 (6 ) 39 Commodity contracts Other noncurrent obligations 8 (3 ) 5 Total $ 160 $ (67 ) $ 93 Total liability derivatives $ 512 $ (140 ) $ 372 1. Counterparty and cash collateral amounts represent the estimated net settlement amount when applying netting and set-off rights included in master netting arrangements between Dow and its counterparties and the payable or receivable for cash collateral held or placed with the same counterparty.

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	The following tables summarize the bases used to measure certain assets and liabilities at fair value on a recurring basis: Basis of Fair Value Measurements on a Recurring Basis at Jun 30, 2018 In millions Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets at fair value: Cash equivalents 1 $ — $ 1,775 $ — $ 1,775 Marketable securities — 133 — 133 Interests in trade accounts receivable conduits 2 — — 24 24 Equity securities 3 22 129 — 151 Debt securities: 3 Government debt 4 — 662 — 662 Corporate bonds — 907 — 907 Derivatives relating to: 5 Interest rates — 1 — 1 Commodities 39 131 — 170 Foreign currency — 287 — 287 Total assets at fair value $ 61 $ 4,025 $ 24 $ 4,110 Liabilities at fair value: Long-term debt including debt due within one year 6 $ — $ 21,115 $ — $ 21,115 Derivatives relating to: 5 Interest rates — 40 — 40 Commodities 20 204 — 224 Foreign currency — 139 — 139 Total liabilities at fair value $ 20 $ 21,498 $ — $ 21,518 1. Treasury bills, time deposits, and money market funds included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value. 2. Included in "Accounts and notes receivable - Other" in the consolidated balance sheets. See Note 9 for additional information on transfers of financial assets. 3. The Company’s investments in debt securities, which are primarily available-for-sale, and equity securities are included in “Other investments” in the consolidated balance sheets. 4. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 5. See Note 16 for the classification of derivatives in the consolidated balance sheets. 6. See Note 16 for information on fair value measurements of long-term debt. Basis of Fair Value Measurements on a Recurring Basis at Dec 31, 2017 In millions Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Assets at fair value: Cash equivalents 1 $ — $ 2,280 $ — $ 2,280 Marketable securities — 4 — 4 Interests in trade accounts receivable conduits 2 — — 677 677 Equity securities 3 88 52 — 140 Debt securities: 3 Government debt 4 — 639 — 639 Corporate bonds — 733 — 733 Derivatives relating to: 5 Commodities 47 100 — 147 Foreign currency — 126 — 126 Total assets at fair value $ 135 $ 3,934 $ 677 $ 4,746 Liabilities at fair value: Long-term debt including debt due within one year 6 $ — $ 22,615 $ — $ 22,615 Derivatives relating to: 5 Interest rates — 4 — 4 Commodities 31 261 — 292 Foreign currency — 216 — 216 Total liabilities at fair value $ 31 $ 23,096 $ — $ 23,127 1. Treasury bills, time deposits, and money market funds included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value. 2. Included in "Accounts and notes receivable - Other" in the consolidated balance sheets. See Note 9 for additional information on transfers of financial assets. 3. The Company’s investments in debt securities, which are primarily available-for-sale, and equity securities are included in “Other investments” in the consolidated balance sheets. 4. U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations. 5. See Note 16 for the classification of derivatives in the consolidated balance sheets. 6. See Note 16 for information on fair value measurements of long-term debt.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]	The following table summarizes the changes in fair value measurements of interests held in trade receivable conduits using Level 3 inputs for the three and six months ended June 30, 2018 and 2017 : Fair Value Measurements Using Level 3 Inputs for Interests Held in Trade Receivable Conduits 1 Three Months Ended Six Months Ended Jun 30, Jun 30, Jun 30, Jun 30, In millions Balance at beginning of period $ 234 $ 1,663 $ 677 $ 1,237 Gain (loss) included in earnings 2 1 (2 ) 3 (2 ) Purchases 3 — 1,386 — 2,363 Settlements 3 (211 ) (1,363 ) (656 ) (1,914 ) Balance at end of period $ 24 $ 1,684 $ 24 $ 1,684 1. Included in “Accounts and notes receivable – Other” in the consolidated balance sheets. 2. Included in “Selling, general and administrative expenses” in the consolidated statements of income. 3. Presented in accordance with ASU 2016-15. See Notes 1 and 2 for additional information. In connection with the review and implementation of ASU 2016-15, the Company also changed the prior year value of “Purchases” and "Settlements" due to additional interpretive guidance of the required method for calculating the cash received from beneficial interests in the conduits.

VARIABLE INTEREST ENTITIES (Tab

VARIABLE INTEREST ENTITIES (Tables)	6 Months Ended
	Jun. 30, 2018
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Schedule of Variable Interest Entities [Table Text Block]	The following table summarizes the carrying amounts of these entities' assets and liabilities included in the Company’s consolidated balance sheets at June 30, 2018 and December 31, 2017 : Assets and Liabilities of Consolidated VIEs Jun 30, Dec 31, In millions Cash and cash equivalents $ 116 $ 107 Other current assets 129 131 Net property 786 907 Other noncurrent assets 47 50 Total assets 1 $ 1,078 $ 1,195 Current liabilities $ 325 $ 303 Long-term debt 147 249 Other noncurrent obligations 35 41 Total liabilities 2 $ 507 $ 593 1. All assets were restricted at June 30, 2018 and December 31, 2017 . 2. All liabilities were nonrecourse at June 30, 2018 and December 31, 2017 .
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
Schedule of Variable Interest Entities [Table Text Block]	The Company's maximum exposure to loss is the same as the carrying amounts, unless otherwise noted below. Carrying Amounts of Assets and Liabilities Related to Nonconsolidated VIEs Jun 30, Dec 31, In millions Description of asset or liability Hemlock Semiconductor L.L.C. Equity method investment 1 $ (717 ) $ (752 ) Silicon joint ventures Equity method investments 2 $ 102 $ 103 AgroFresh Solutions, Inc Equity method investment 2 $ 42 $ 51 Other receivable 3 $ — $ 4 1. Classified as "Other noncurrent obligations" in the consolidated balance sheets. The Company's maximum exposure to loss was zero at June 30, 2018 ( zero at December 31, 2017 ). 2. Classified as "Investment in nonconsolidated affiliates" in the consolidated balance sheets. 3. Classified as "Accounts and notes receivable - Other" in the consolidated balance sheets.

RELATED PARTY TRANSACTIONS (Tab

RELATED PARTY TRANSACTIONS (Tables)	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions [Table Text Block]	The following table presents revenue earned and expenses incurred related to transactions with DuPont and its affiliates: Sales to DuPont and its Affiliates Three Months Ended Jun 30, 2018 Six Months Ended Jun 30, 2018 In millions Net sales $ 64 $ 107 Cost of sales $ 42 $ 68

CONSOLIDATED FINANCIAL STATEM42

CONSOLIDATED FINANCIAL STATEMENTS Changes to Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Cost of sales	$ 12,400	$ 10,761	$ 23,952	$ 20,955
Research and development expenses	407	408	793	827
Selling, general and administrative expenses	748	720	1,499	1,479
Integration and separation costs		136		245
Sundry income (expense) - net	$ 5	322	$ 88	(122)
Interest income		0		0
Scenario, Previously Reported [Member]
Cost of sales		10,764		20,961
Research and development expenses		405		821
Selling, general and administrative expenses		855		1,722
Integration and separation costs		0		0
Sundry income (expense) - net		299		(171)
Interest income		22		47
Scenario, Adjustment [Member]
Cost of sales		(1)		(1)
Research and development expenses		0		0
Selling, general and administrative expenses		(135)		(244)
Integration and separation costs		136		245
Sundry income (expense) - net		22		47
Interest income		(22)		(47)
Adjustments for New Accounting Pronouncement [Member]
Cost of sales		(2)		(5)
Research and development expenses		3		6
Selling, general and administrative expenses		0		1
Integration and separation costs		0		0
Sundry income (expense) - net		1		2
Interest income		$ 0		$ 0

CONSOLIDATED FINANCIAL STATEM43

CONSOLIDATED FINANCIAL STATEMENTS Changes to Cash Flow Statement (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic pension benefit cost		$ 219
Net gain on sales of assets, businesses and investments	$ 54	190
Net gain on sales of investments		0
Net gain on sales of property, businesses and consolidated companies		0
Net loss on sale of ownership interests in nonconsolidated affiliates		0
Other net loss	249	252
Proceeds from interests in trade accounts receivable conduits	(656)	(1,914)
Accounts and notes receivable	(1,800)	(3,233)
Accounts payable	792	826
Other assets and liabilities, net	1,146	883
Cash provided by (used for) operating activities	1,550	(101)
Acquisitions of property, businesses and consolidated companies, net of cash acquired	0	31
Proceeds from interests in trade accounts receivable conduits		1,914
Cash used for investing activities	(424)	192
Contingent payment for acquisition of businesses		(31)
Cash used for financing activities	(2,397)	(690)
Decrease in cash, cash equivalents and restricted cash	(1,339)	(391)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 4,868	6,233	$ 6,207	$ 6,624
Scenario, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic pension benefit cost		219
Net gain on sales of assets, businesses and investments		(190)
Net gain on sales of investments		53
Net gain on sales of property, businesses and consolidated companies		135
Net loss on sale of ownership interests in nonconsolidated affiliates		2
Other net loss		(177)
Proceeds from interests in trade accounts receivable conduits		0
Accounts and notes receivable		0
Accounts payable		206
Other assets and liabilities, net		602
Cash provided by (used for) operating activities		0
Payment into escrow account		0
Acquisitions of property, businesses and consolidated companies, net of cash acquired		0
Proceeds from interests in trade accounts receivable conduits		0
Cash used for investing activities		0
Contingent payment for acquisition of businesses		0
Cash used for financing activities		0
Decrease in cash, cash equivalents and restricted cash		0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		0		0
Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic pension benefit cost		0
Net gain on sales of assets, businesses and investments		0
Net gain on sales of investments		(53)
Net gain on sales of property, businesses and consolidated companies		(135)
Net loss on sale of ownership interests in nonconsolidated affiliates		(2)
Other net loss		(75)
Proceeds from interests in trade accounts receivable conduits		804
Accounts and notes receivable		(2,123)
Accounts payable		620
Other assets and liabilities, net		(279)
Cash provided by (used for) operating activities		1,815
Payment into escrow account		(130)
Payment from escrow account		(130)
Acquisitions of property, businesses and consolidated companies, net of cash acquired		31
Proceeds from interests in trade accounts receivable conduits		0
Cash used for investing activities		(1,753)
Contingent payment for acquisition of businesses		0
Cash used for financing activities		(659)
Decrease in cash, cash equivalents and restricted cash		(389)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		6,218		6,607
Adjustments for New Accounting Pronouncement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net periodic pension benefit cost		0
Net gain on sales of assets, businesses and investments		0
Net gain on sales of investments		0
Net gain on sales of property, businesses and consolidated companies		0
Net loss on sale of ownership interests in nonconsolidated affiliates		0
Other net loss		0
Proceeds from interests in trade accounts receivable conduits		(804)
Accounts and notes receivable		(1,110)
Accounts payable		0
Other assets and liabilities, net		2
Cash provided by (used for) operating activities		(1,916)
Payment into escrow account		(130)
Payment from escrow account		(130)
Acquisitions of property, businesses and consolidated companies, net of cash acquired		31
Proceeds from interests in trade accounts receivable conduits		1,914
Cash used for investing activities		1,945
Contingent payment for acquisition of businesses		31
Cash used for financing activities		(31)
Decrease in cash, cash equivalents and restricted cash		(2)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		$ 15		$ 17

CONSOLIDATED FINANCIAL STATEM44

CONSOLIDATED FINANCIAL STATEMENTS Changes to Equity Statement (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		$ 0
Other	$ 14	17
Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other	$ (14)	(15)
Retained Earnings [Member] | Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		15
Other		0
Retained Earnings [Member] | Scenario, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Dividend equivalents on participating securities		15
Other		$ 15

CONSOLIDATED FINANCIAL STATEM45

CONSOLIDATED FINANCIAL STATEMENTS Changes to Balance Sheet (Details) - USD ($) $ in Millions	Apr. 01, 2018	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained Earnings, Tax Effect	$ 1,057
Inventories		$ 9,346	$ 8,365	$ 8,376
Other current assets		898	687	627
Total current assets		28,286	27,293	27,244
Deferred income tax assets		1,672	1,757	1,722
Deferred charges and other assets		1,009	872	829
Total other assets		21,811	22,116	22,038
Total assets		80,221	80,067	79,940
Accounts payable - Other		3,939	3,072	3,062
Income taxes payable		736	692	694
Accrued and other current liabilities		3,294	4,075	4,025
Total current liabilities		16,892	14,435	14,377
Other noncurrent obligations		5,930	6,111	5,994
Total other noncurrent liabilities		18,190	18,906	18,789
Retained earnings		29,536	27,982	28,050
Accumulated other comprehensive loss		(9,387)	(8,571)	(8,591)
The Dow Chemical Company's stockholders' equity		26,865	25,775	25,823
Total equity		28,017	26,961	27,009	$ 29,589	$ 27,229
Total Liabilities and Equity		80,221	80,067	$ 79,940
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories		24	(11)
Other current assets		(36)	29
Total current assets		(12)	18
Deferred income tax assets		(27)	25
Deferred charges and other assets		(43)	43
Total other assets		(70)	68
Total assets		(82)	86
Accounts payable - Other		(10)	10
Income taxes payable		2	(2)
Accrued and other current liabilities		(19)	50
Total current liabilities		(27)	58
Other noncurrent obligations		(134)	117
Total other noncurrent liabilities		(134)	117
Retained earnings		79	(89)
Accumulated other comprehensive loss			0
The Dow Chemical Company's stockholders' equity		79	(89)
Total equity		79	(89)
Total Liabilities and Equity		$ (82)	86
Accounting Standards Update 2016-01 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories			0
Other current assets			0
Total current assets			0
Deferred income tax assets			0
Deferred charges and other assets			0
Total other assets			0
Total assets			0
Accounts payable - Other			0
Income taxes payable			0
Accrued and other current liabilities			0
Total current liabilities			0
Other noncurrent obligations			0
Total other noncurrent liabilities			0
Retained earnings			(20)
Accumulated other comprehensive loss			20
The Dow Chemical Company's stockholders' equity			0
Total equity			0
Total Liabilities and Equity			0
Accounting Standards Update 2016-16 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories			0
Other current assets			31
Total current assets			31
Deferred income tax assets			10
Deferred charges and other assets			0
Total other assets			10
Total assets			41
Accounts payable - Other			0
Income taxes payable			0
Accrued and other current liabilities			0
Total current liabilities			0
Other noncurrent obligations			0
Total other noncurrent liabilities			0
Retained earnings			41
Accumulated other comprehensive loss			0
The Dow Chemical Company's stockholders' equity			41
Total equity			41
Total Liabilities and Equity			$ 41

CONSOLIDATED FINANCIAL STATEM46

CONSOLIDATED FINANCIAL STATEMENTS Impact of New Revenue Standard (Details) - USD ($) $ in Millions	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories	$ 9,346	$ 8,365	$ 8,376
Other current assets	898	687	627
Total current assets	28,286	27,293	27,244
Deferred income tax assets	1,672	1,757	1,722
Deferred charges and other assets	1,009	872	829
Total other assets	21,811	22,116	22,038
Total assets	80,221	80,067	79,940
Accounts payable - Other	3,939	3,072	3,062
Income taxes payable	736	692	694
Accrued and other current liabilities	3,294	4,075	4,025
Total current liabilities	16,892	14,435	14,377
Other noncurrent obligations	5,930	6,111	5,994
Total other noncurrent liabilities	18,190	18,906	18,789
Retained earnings	29,536	27,982	28,050
The Dow Chemical Company's stockholders' equity	26,865	25,775	25,823
Total equity	28,017	26,961	27,009	$ 29,589	$ 27,229
Liabilities and Equity	80,221	80,067	$ 79,940
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories	24	(11)
Other current assets	(36)	29
Total current assets	(12)	18
Deferred income tax assets	(27)	25
Deferred charges and other assets	(43)	43
Total other assets	(70)	68
Total assets	(82)	86
Accounts payable - Other	(10)	10
Income taxes payable	2	(2)
Accrued and other current liabilities	(19)	50
Total current liabilities	(27)	58
Other noncurrent obligations	(134)	117
Total other noncurrent liabilities	(134)	117
Retained earnings	79	(89)
The Dow Chemical Company's stockholders' equity	79	(89)
Total equity	79	(89)
Liabilities and Equity	(82)	$ 86
Calculated under Revenue Guidance in Effect before Topic 606 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Inventories	9,370
Other current assets	862
Total current assets	28,274
Deferred income tax assets	1,645
Deferred charges and other assets	966
Total other assets	21,741
Total assets	80,139
Accounts payable - Other	3,929
Income taxes payable	738
Accrued and other current liabilities	3,275
Total current liabilities	16,865
Other noncurrent obligations	5,796
Total other noncurrent liabilities	18,056
Retained earnings	29,615
The Dow Chemical Company's stockholders' equity	26,944
Total equity	28,096
Liabilities and Equity	$ 80,139

CONSOLIDATED FINANCIAL STATEM47

CONSOLIDATED FINANCIAL STATEMENTS Other (Details) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.46	$ 0.92

REVENUE (Details)

REVENUE (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Revenue, Performance Obligation, Description of Timing			23
Revenue, Net	$ 15,793	$ 13,834	$ 30,692	$ 27,064
Contract with Customer, Liability, Revenue Recognized			110
Accounts Receivable, Net, Current	8,951		8,951			$ 7,338
Contract assets - current 1	20		20			0
Contract assets - noncurrent 2	45		45			0
Contract liabilities - current 3	152		152			117
Contract liabilities - noncurrent 4	1,454		1,454			$ 1,365
U.S. & Canada
Revenue, Net	5,765		11,233
EMEA 1
Revenue, Net	4,739		9,504
Asia Pacific
Revenue, Net	3,675		6,931
Latin America
Revenue, Net	1,614		3,024
Coatings & Performance Monomers
Revenue, Net	1,103		2,057
Construction Chemicals
Revenue, Net	226		408
Consumer Solutions
Revenue, Net	1,516		2,879
Crop Protection
Revenue, Net	1,436		2,558
Electronics & Imaging
Revenue, Net	652		1,279
Hydrocarbons & Energy
Revenue, Net	1,833		3,612
Industrial Biosciences
Revenue, Net	132		267
Industrial Solutions
Revenue, Net	1,198		2,358
Nutrition & Health
Revenue, Net	157		313
Packaging and Specialty Plastics
Revenue, Net	3,886		7,740
Polyurethanes & CAV
Revenue, Net	2,460		4,831
Safety & Construction
Revenue, Net	523		967
Seed
Revenue, Net	269		640
Transportation & Advanced Polymers
Revenue, Net	326		630
Corporate
Revenue, Net	73		146
Other
Revenue, Net	$ 3		$ 7
Product [Member]
Revenue, Percentage from Products and Service Transferred to Customers	99.00%	98.00%	99.00%	98.00%
Material Rights Granted to Customers [Member]
Revenue, Remaining Performance Obligation	$ 99		$ 99
Licensing of Technology [Member] [Member]
Revenue, Remaining Performance Obligation	$ 228		$ 228
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Accounts Receivable, Net, Current					$ 0
Contract assets - current 1					18
Contract assets - noncurrent 2					43
Contract liabilities - current 3					50
Contract liabilities - noncurrent 4					$ 117

2017 DWDP Cost Synergy Program

2017 DWDP Cost Synergy Program (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Nov. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 98	$ (12)	$ 263	$ (13)
DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						$ 1,300
Restructuring, Settlement and Impairment Provisions	88		251		$ 687
Restructuring Reserve, Settled without Cash			(75)		(287)
Payments for Restructuring			(167)		(51)
Restructuring Reserve	358		358		349
Employee Severance [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	38		142		357
Restructuring Reserve, Settled without Cash			0		0
Payments for Restructuring			(137)		(51)
Restructuring Reserve	311		311		306
Asset write-downs and write-offs [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	27		75		287
Restructuring Reserve, Settled without Cash			(75)		(287)
Payments for Restructuring			0		0
Restructuring Reserve	0		0		0
Costs Associated with Exit and Disposal Activities [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	23		34		43
Restructuring Reserve, Settled without Cash			0		0
Payments for Restructuring			(30)		0
Restructuring Reserve	47		47		43
Minimum [Member] | Employee Severance [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						525
Minimum [Member] | Asset write-downs and write-offs [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						400
Minimum [Member] | Costs Associated with Exit and Disposal Activities [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						290
Maximum [Member] | Employee Severance [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						575
Maximum [Member] | Asset write-downs and write-offs [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						440
Maximum [Member] | Costs Associated with Exit and Disposal Activities [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost						$ 310
Accrued and Other Current Liabilities [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	250		250		231
Other Noncurrent Liabilities [Member] | DowDuPont Cost Synergy Program [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 108		$ 108		$ 118

Restructuring and Asset Relat50

Restructuring and Asset Related Charges - Net - 2016 Plan (Details) - 2016 Restructuring [Member] $ in Millions	Jun. 27, 2016employees	Jun. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated | employees	2,500
Restructuring Reserve, Accrual Adjustment		$ 7	$ 6
Restructuring Reserve		33	33	$ 68
Payments for Restructuring			(41)
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment		(8)	(8)
Restructuring Reserve		6	6	51
Payments for Restructuring			(37)
Costs Associated with Exit and Disposal Activities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment		15	14
Restructuring Reserve		$ 27	27	$ 17
Payments for Restructuring			$ (4)

Summary of Sundry Income (Expen

Summary of Sundry Income (Expense) - Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Sundry income (expense) - net	$ 5	$ 322	$ 88	$ (122)
Nova Patent Infringement [Member]
Gain (Loss) Related to Litigation Settlement		$ 137
Bayer CropScience v. Dow AgroSciences [Member]
Gain (Loss) Related to Litigation Settlement				$ (469)

Other (Details)

Other (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 4,823	$ 6,188	$ 6,218
Restricted cash 1	45	19	15
Total cash, cash equivalents and restricted cash	$ 4,868	$ 6,207	$ 6,233	$ 6,624

INCOME TAXES Income Taxes (Deta

INCOME TAXES Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	9 Months Ended
	Dec. 31, 2017	Jun. 30, 2018	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)			$ (19)
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit)	$ 865
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Indirect Impact on Inventory, Provisional Income Tax Expense		$ 38

INVENTORIES (Schedule of Invent

INVENTORIES (Schedule of Inventories) (Details) - USD ($) $ in Millions	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Finished goods	$ 5,677		$ 5,213
Work in process	2,239		1,747
Raw materials	961		898
Supplies	870		848
Total	9,747		8,706
Adjustment of inventories to a LIFO basis	(401)		(330)
Total inventories 1	$ 9,346	$ 8,365	$ 8,376

GOODWILL AND OTHER INTANGIBLE55

GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Goodwill [Roll Forward]
Net goodwill, beginning of period	$ 13,938
Net goodwill, end of period	13,894
Corporate, Non-Segment [Member]
Goodwill [Roll Forward]
Net goodwill, beginning of period	13,938
Foreign currency impact	(44)
Net goodwill, end of period	$ 13,894

GOODWILL AND OTHER INTANGIBLE56

GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	$ 10,610	$ 10,660
Finite other intangible assets, accumulated amortization	(5,424)	(5,161)
Finite other intangible assets, net	5,186	5,499
Other intangible assets, gross carrying amount	10,660	10,710
Other intangible assets, net	5,236	5,549
In process research and development [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite other intangible asset, carrying amount	50	50
Developed technology
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	3,254	3,263
Finite other intangible assets, accumulated amortization	(1,804)	(1,690)
Finite other intangible assets, net	1,450	1,573
Software
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	1,479	1,420
Finite other intangible assets, accumulated amortization	(833)	(780)
Finite other intangible assets, net	646	640
Trademarks/tradenames
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	689	697
Finite other intangible assets, accumulated amortization	(594)	(570)
Finite other intangible assets, net	95	127
Customer-related
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	4,945	5,035
Finite other intangible assets, accumulated amortization	(2,030)	(1,965)
Finite other intangible assets, net	2,915	3,070
Other
Finite-Lived Intangible Assets [Line Items]
Finite other intangible assets, gross carrying amount	243	245
Finite other intangible assets, accumulated amortization	(163)	(156)
Finite other intangible assets, net	$ 80	$ 89

GOODWILL AND OTHER INTANGIBLE57

GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 155	$ 157	$ 314	$ 312
Other intangible assets, excluding software
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	155	157	314	312
Software, included in “Cost of sales”
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 25	$ 20	$ 48	$ 40

GOODWILL AND OTHER INTANGIBLE58

GOODWILL AND OTHER INTANGIBLE ASSETS - Summary of Future Amortization Expense (Details) $ in Millions	Jun. 30, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2,018	$ 718
2,019	672
2,020	635
2,021	603
2,022	532
2,023	$ 508

TRANSFERS OF FINANCIAL ASSETS -

TRANSFERS OF FINANCIAL ASSETS - Sumamry of Interests Held (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Transfers and Servicing [Abstract]
Carrying value of interests held	$ 24	$ 677
Percentage of anticipated credit losses	36.81%	2.64%
Impact to carrying value - 10% adverse change	$ 0	$ 0
Impact to carrying value - 20% adverse change	$ 0	$ 1

TRANSFERS OF FINANCIAL ASSETS60

TRANSFERS OF FINANCIAL ASSETS - Cash Proceeds (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Transfers and Servicing [Abstract]
Collections reinvested in revolving receivables	$ 0	$ 6,051	$ 0	$ 11,732
Interests in conduits 1	$ 211	$ 1,363	$ 656	$ 1,914

TRANSFERS OF FINANCIAL ASSETS61

TRANSFERS OF FINANCIAL ASSETS - Trade AR Sold (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Transfers and Servicing [Abstract]
Delinquencies on sold receivables still outstanding	$ 36	$ 82
Trade accounts receivable outstanding and derecognized	$ 36	$ 612

NOTES PAYABLE, LONG-TERM DEBT62

NOTES PAYABLE, LONG-TERM DEBT AND AVAILABLE CREDIT FACILITIES (Details) - USD ($) $ in Millions	May 31, 2016	Jun. 30, 2018	Jun. 30, 2017
Gain (Loss) on Extinguishment of Debt		$ (1)
Redemption of Internotes [Member]
Debt Instrument, Repurchased Face Amount		20	$ 30
Long Term Debt Repayment - Variable Interest Entity [Member]
Repayments of Long-term Debt and Capital Securities		75	$ 60
Tax-exempt Bonds, varying maturities through 2038 [Member]
Repayments of Long-term Debt and Capital Securities		125
Loans Payable [Member] | Five Point Seven Percent Notes Due 2018 [Member]
Debt Instrument, Repurchased Face Amount		$ 333
Debt Instrument, Interest Rate, Stated Percentage		5.70%
Tax-Exempt Bonds [Member] | Five Point Nine Percent Tax-Exempt Bonds due 2038 [Member]
Debt Instrument, Notice to Call		$ 218
Term Loan Facility [Domain] | DCC Term Loan Facility [Domain]
Proceeds from Lines of Credit	$ 4,500

COMMITMENTS AND CONTINGENT LI63

COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 834	$ 878
Accrual For Environmental Loss Contingencies Superfund Sites [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 143	$ 152

COMMITMENTS AND CONTINGENT LI64

COMMITMENTS AND CONTINGENT LIABILITIES (Asbestos-Related Matters of Union Carbide Corporation) (Table and Narrative) (Details) - Asbestos Related Matters [Member] - Union Carbide Corporation [Member] - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Loss Contingencies [Line Items]
Liability for Asbestos and Environmental Claims, Gross	$ 1,310	$ 1,369
Percentage of recorded asbestos liability related to pending claims	16.00%
Percentage of recorded asbestos liability related to future claims	84.00%

COMMITMENTS AND CONTINGENT LI65

COMMITMENTS AND CONTINGENT LIABILITIES (Bayer Arbitration Matter) (Details) - Dow Agrosciences LLC [Domain] - Bayer CropScience v. Dow AgroSciences [Member] - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2015
Loss Contingencies [Line Items]
Loss Contingency, Damages Awarded, Value			$ 455
Loss Contingency, Loss in Period		$ 469
Loss Contingency Accrual, Payments	$ 469

COMMITMENTS AND CONTIGENT LIABI

COMMITMENTS AND CONTIGENT LIABILITIES (Rocky Flats) (Details) - Rocky Flats Matter [Domain] - USD ($) $ in Millions	Jan. 17, 2017	Jun. 30, 2016	Jan. 26, 2017
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 131
Proceeds from Legal Settlements	$ 131
Escrow Deposit			$ 130
Dow Chemical and Rockwell International Corporation [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded to Other Party		$ 375

COMMITMENTS AND CONTINGENT LI67

COMMITMENTS AND CONTINGENT LIABILITES (Dow Silicones Chapter 11 Related Matters) (Details) (Details) - Dow Silicones Corporation [Member] - USD ($) $ in Millions	Jun. 01, 2004	Jun. 30, 2017	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 01, 2016
Product Liability Contingency [Line Items]
Business Combination, Indemnification Assets, Percentage of Future Losses						50.00%
Indemnification Asset			$ 0		$ 0
Breast Implant and Other Products Liability Claims [Member]
Product Liability Contingency [Line Items]
Product Liability Contingency, Payments Incurred To Date			1,762
Product Liability Contingency, Unexpended Balance			126
Loss Contingency Accrual, Product Liability, Net			263	$ 263
Product Liability Contingency, Loss Exposure, Best Estimate			2,047
Commercial Creditors Litigation [Domain]
Product Liability Contingency [Line Items]
Payments for Legal Settlements	$ 1,500
Commercial Creditors Litigation [Domain]
Product Liability Contingency [Line Items]
Loss Contingency Accrual, Period Increase (Decrease)		$ (33)
Estimated Litigation Liability			$ 80	$ 78
Commercial Creditors Litigation [Domain] | Minimum [Member]
Product Liability Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss		77
Commercial Creditors Litigation [Domain] | Maximum [Member]
Product Liability Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 260

COMMITMENTS AND CONTINGENT LI68

COMMITMENTS AND CONTINGENT LIABILITIES (Nova Patent Infringement Matter) (Details) - Dow V. Nova Chemicals Corporation Patent Infringement Matter [Member] $ in Millions, $ in Millions	Jul. 06, 2017USD ($)	Jun. 29, 2017USD ($)	Jun. 29, 2017CAD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded from Other Party		$ 495	$ 645
Proceeds from Legal Settlements	$ 501
Gain (Loss) Related to Litigation Settlement				$ 160
Other noncurrent obligations					$ 341	$ 341
Nonoperating Income (Expense) [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related to Litigation Settlement				137
Selling, General and Administrative Expenses [Member]
Loss Contingencies [Line Items]
Gain (Loss) Related to Litigation Settlement				$ 23

COMMITMENTS AND CONTINGENT LI69

COMMITMENTS AND CONTINGENT LIABILITIES (Guarantees) (Table and Narrative) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	$ 5,467	$ 5,663
Guarantor obligations, recorded liability	177	184
Long-term Debt	$ 19,959	$ 20,517
Performance Guarantee [Member]
Guarantor Obligations [Line Items]
Final expiration	2,023	2,023
Guarantor obligations, maximum future payments	$ 4,572	$ 4,774
Guarantor obligations, recorded liability	$ 45	$ 49
Residual Value Guarantees [Member]
Guarantor Obligations [Line Items]
Final expiration	2,027	2,027
Guarantor obligations, maximum future payments	$ 895	$ 889
Guarantor obligations, recorded liability	$ 132	135
Sadara Chemical Company [Member]
Guarantor Obligations [Line Items]
Equity Method Investment, Ownership Percentage	35.00%
Sadara Chemical Company [Member] | Performance Guarantee [Member]
Guarantor Obligations [Line Items]
Guarantor obligations, maximum future payments	$ 4,400
Sadara Chemical Company [Member] | Total Project Financing [Member]
Guarantor Obligations [Line Items]
Project Financing, Maximum Borrowing Capacity	12,500
Long-term Debt	$ 12,400	$ 12,400

ACCUMULATED OTHER COMPREHENSI70

ACCUMULATED OTHER COMPREHENSIVE LOSS - Summary of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	Apr. 01, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jan. 01, 2018	Dec. 31, 2017	Jan. 01, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax		$ (9,387)		$ (9,387)		$ (8,571)	$ (8,591)
Total Equity, Beginning		28,017	$ 29,589	28,017	$ 29,589	26,961	27,009		$ 27,229
Other comprehensive income (loss) before reclassifications				(58)	597
Amounts reclassified from accumulated other comprehensive income		150	65	299	151
Total other comprehensive income		(242)	440	241	748
Reclassification of stranded tax effects 3	$ 1,057
Other Comprehensive Income (Loss), Tax		68	45	82	104
Unrealized gains (losses) on investments
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		1	(35)	3	(47)
Total Equity, Beginning		(23)	51	(23)	51	17		$ 43
Other comprehensive income (loss) before reclassifications				(41)	38
Amounts reclassified from accumulated other comprehensive income		1	(22)	2	(30)
Total other comprehensive income				(39)	8
Other Comprehensive Income (Loss), Tax		(3)	(4)	(9)	4
Reclassification from AOCI, Current Period, Tax		0	13	(1)	17
Cumulative Translation Adjustments
Total Equity, Beginning		(1,682)	(1,755)	(1,682)	(1,755)	(1,481)		(2,381)
Other comprehensive income (loss) before reclassifications				(92)	632
Amounts reclassified from accumulated other comprehensive income				(2)	(6)
Total other comprehensive income				(94)	626
Other Comprehensive Income (Loss), Tax		25	8	20	26
Pension and other postretirement benefit plans
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		158	149	312	298
Total Equity, Beginning		(7,675)	(7,186)	(7,675)	(7,186)	(6,998)		(7,389)
Other comprehensive income (loss) before reclassifications				0	0
Amounts reclassified from accumulated other comprehensive income		124	101	250	203
Total other comprehensive income				250	203
Other Comprehensive Income (Loss), Tax		34	48	62	95
Reclassification from AOCI, Current Period, Tax		(34)	(48)	(62)	(95)
Derivative instruments
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax		32	(8)	59	(15)
Total Equity, Beginning		(7)	(184)	(7)	(184)	(109)		(95)
Other comprehensive income (loss) before reclassifications				75	(73)
Amounts reclassified from accumulated other comprehensive income		27	(8)	49	(16)
Total other comprehensive income				124	(89)
Other Comprehensive Income (Loss), Tax		12	(7)	9	(21)
Reclassification from AOCI, Current Period, Tax		(5)	0	(10)	(1)
Accumulated Other Comprehensive Loss
Total Equity, Beginning		$ (9,387)	$ (9,074)	(9,387)	(9,074)	(8,571)	$ (8,591)	$ (9,822)	$ (9,822)
Total other comprehensive income				241	$ 748
Accounting Standards Update 2018-02 [Domain]
Reclassification of stranded tax effects 3				(1,057)
Accounting Standards Update 2018-02 [Domain] | Unrealized gains (losses) on investments
Reclassification of stranded tax effects 3				(1)
Accounting Standards Update 2018-02 [Domain] | Cumulative Translation Adjustments
Reclassification of stranded tax effects 3				(107)
Accounting Standards Update 2018-02 [Domain] | Pension and other postretirement benefit plans
Reclassification of stranded tax effects 3				(927)
Accounting Standards Update 2018-02 [Domain] | Derivative instruments
Reclassification of stranded tax effects 3				$ (22)
Accounting Standards Update 2016-01 [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax						20
Total Equity, Beginning						$ 0

ACCUMULATED OTHER COMPREHENSI71

ACCUMULATED OTHER COMPREHENSIVE LOSS Reclassification Out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 150	$ 65	$ 299	$ 151
Nonoperating Income (Expense)	5	322	88	(122)
Unrealized gains (losses) on investments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	1	(35)	3	(47)
Reclassification from AOCI, Current Period, Tax	0	13	(1)	17
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	1	(22)	2	(30)
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Nonoperating Income (Expense)	(2)	(6)	(2)	(6)
Pension and other postretirement benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	158	149	312	298
Reclassification from AOCI, Current Period, Tax	(34)	(48)	(62)	(95)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	124	101	250	203
Derivative instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	32	(8)	59	(15)
Reclassification from AOCI, Current Period, Tax	(5)	0	(10)	(1)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	$ 27	$ (8)	$ 49	$ (16)

NONCONTROLLING INTERESTS Nonc72

NONCONTROLLING INTERESTS Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Noncontrolling Interest [Line Items]
Balance at beginning of period	$ 1,190	$ 1,274	$ 1,186	$ 1,242
Noncontrolling Interest, Decrease From Dividends To Joint Venture	6	3	6	3
Net income attributable to noncontrolling interests	31	38	66	65
Distributions to noncontrolling interests	(37)	(27)	(61)	(48)
Noncontrolling Interest, Decrease from Deconsolidation		(119)		(119)
Cumulative translation adjustments	(34)	3	(40)	28
Other	2	(1)	1	0
Balance at end of period	$ 1,152	$ 1,168	$ 1,152	$ 1,168

PENSION PLANS AND OTHER POSTR73

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pension Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 132	$ 126	$ 265	$ 251
Interest cost	217	220	435	439
Expected return on plan assets	(404)	(385)	(810)	(768)
Amortization of prior service credit	(6)	(6)	(12)	(12)
Amortization of net (gain) loss	170	158	341	315
Curtailment/settlement 1	0	(6)	0	(6)
Net periodic benefit cost	109	107	219	219
Other Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	3	3	6	6
Interest cost	11	13	22	27
Amortization of net (gain) loss	(6)	(1)	(12)	(3)
Net periodic benefit cost	$ 8	$ 15	$ 16	$ 30

STOCK-BASED COMPENSATION (Stock

STOCK-BASED COMPENSATION (Stock Incentive Plan) (Details) shares in Millions	3 Months Ended
	Mar. 31, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares	6.3
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 71.85
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 15.46
Deferred Compensation, Share-based Payments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares	1.9
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 71.83

FINANCIAL INSTRUMENTS (Summary

FINANCIAL INSTRUMENTS (Summary of Fair Value of Financial Instruments) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Cash Equivalents, at Carrying Value	$ 1,775	$ 1,775		$ 2,280
Cash Equivalents, Accumulated Gross Unrealized Gain, Before Tax	0	0		0
Cash Equivalents, Accumulated Gross Unrealized Loss, Before Tax	0	0		0
Cash Equivalents, Fair Value	1,775	1,775		2,280
Available-for-sale Debt Securities, Amortized Cost Basis, Current	131	131		4
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, Current, before Tax	2	2		0
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, Current, before Tax	0	0		0
Available-for-sale Securities, Debt Securities, Current	133	133		4
Available-for-sale Debt Securities, Amortized Cost Basis	1,591	1,591		1,341
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	30	30		45
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	52	52		14
Available-for-sale Securities, Debt Securities	1,569	1,569		1,372
Equity Securities, Amortized Cost Basis	143	143		164
Equity Securities, Accumulated Gross Unrealized Gain, Before Tax	20	20		2
Equity Securities, Accumulated Gross Unrealized Loss, Before Tax	12	12		26
Equity Securities, Fair Value	151	151		140
Other Investments and Securities, at Cost	1,734	1,734		1,505
Other Investments and Securities, Accumulated Gross Unrealized Gain, Before Tax	50	50		47
Other Investments and Securities, Accumulated Gross Unrealized Loss, Before Tax	64	64		40
Other Investments	1,720	1,720		1,512
Cash Equivalents, Marketable Securities and Other Investments, Amortized Cost Basis	3,640	3,640		3,789
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Gain, Before Tax	52	52		47
Cash Equivalents, Marketable Securities and Other Investments, Accumulated Gross Unrealized Loss, Before Tax	64	64		40
Cash Equivalents, Marketable Securities and Other Investments, Fair Value	3,628	3,628		3,796
Long-term Debt	19,959	19,959		20,517
Long Term Debt, Accumulated Gross Unrealized Gain, Before Tax	153	153		6
Long Term Debt, Accumulated Gross Unrealized Loss, Before Tax	1,309	1,309		2,104
Long-term Debt, Fair Value	21,115	21,115		22,615
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	342	342		152
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	286	286		372
Derivative Assets (Liabilities), at Fair Value, Net	56	56		(220)
Long Term Debt, Accumulated Fair Value Adjustment	18	18		19
Proceeds from sales of available-for-sale securities		625	$ 132
Gross realized gains		15	3
Gross realized losses		18	$ 0
Equity Securities, Net Unrealized Gain (Loss)	(1)	8
Cost Method Investments	56	56
US Treasury and Government [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	678	678		637
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	8	8		13
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	24	24		11
Available-for-sale Securities, Debt Securities	662	662		639
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	913	913		704
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	22	22		32
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	28	28		3
Available-for-sale Securities, Debt Securities	907	907		733
Interest Rate Contract [Member]
Schedule of Available-for-sale Securities [Line Items]
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	0	0		0
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	39	39		4
Derivative Assets (Liabilities), at Fair Value, Net	(39)	(39)		(4)
Commodity Contract [Member]
Schedule of Available-for-sale Securities [Line Items]
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	159	159		130
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	212	212		256
Derivative Assets (Liabilities), at Fair Value, Net	(53)	(53)		(126)
Foreign Exchange Contract [Member]
Schedule of Available-for-sale Securities [Line Items]
Derivative Assets (Liabilities), Accumulated Gross Unrealized Gain, Before Tax	183	183		22
Derivative Assets (Liabilities), Accumulated Gross Unrealized Loss, Before Tax	35	35		112
Derivative Assets (Liabilities), at Fair Value, Net	148	148		$ (90)
Long-term Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Derivative, Notional Amount	$ 2,990	$ 2,990

FINANCIAL INSTRUMENTS (Derivati

FINANCIAL INSTRUMENTS (Derivatives) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivatives, Fair Value [Line Items]
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	$ 6		$ 6		$ 21
Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(30)		(30)		(3)
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	(1)		(1)
Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	9		9
Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months	(22)		(22)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	2,536		2,536
Fair Value, Inputs, Level 2 [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	458		458		273
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(116)		(116)		(121)
Derivative Asset	342		342		152
Derivative Liability, Fair Value, Gross Liability	403		403		512
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	117		117		140
Derivative Liability	286		286		372
Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	316		316		141
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(49)		(49)		(55)
Derivative Asset	267		267		86
Derivative Liability, Fair Value, Gross Liability	293		293		352
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	50		50		73
Derivative Liability	243		243		279
Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	142		142		132
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(67)		(67)		(66)
Derivative Asset	75		75		66
Derivative Liability, Fair Value, Gross Liability	110		110		160
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	67		67		67
Derivative Liability	43		43		93
Deferred charges and other assets [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1		1
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(1)		(1)
Deferred charges and other assets [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	104		104		70
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(2)		(2)		(5)
Derivative Asset	102		102		65
Deferred charges and other assets [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	6		6		7
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(1)		(1)		(3)
Derivative Asset	5		5		4
Accounts and Notes Receivable Other [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	129		129		75
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(62)		(62)		(58)
Derivative Asset	67		67		17
Other Current Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	158		158		51
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(42)		(42)		(46)
Derivative Asset	116		116		5
Other Current Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	53		53		20
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(4)		(4)		(4)
Derivative Asset	49		49		16
Other Current Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	7		7		50
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset	(4)		(4)		(5)
Derivative Asset	3		3		45
Accrued and Other Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	40		40		4
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	1		1		0
Derivative Liability	39		39		4
Accrued and Other Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	44		44		109
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	42		42		46
Derivative Liability	2		2		63
Accrued and Other Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	94		94		96
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	5		5		15
Derivative Liability	89		89		81
Accrued and Other Current Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	6		6		45
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	4		4		6
Derivative Liability	2		2		39
Other Noncurrent Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	115		115		143
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	2		2		12
Derivative Liability	113		113		131
Other Noncurrent Obligations [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Commodity Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	9		9		8
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	1		1		3
Derivative Liability	8		8		5
Accounts Payable Other [Member] | Fair Value, Inputs, Level 2 [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	95		95		107
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset	62		62		58
Derivative Liability	33		33		$ 49
Other Nonoperating Income (Expense) [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 82	$ (193)	$ 65	$ (160)

FAIR VALUE MEASUREMENTS (Summar

FAIR VALUE MEASUREMENTS (Summary of Recurring Measured Fair Values) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interests in trade accounts receivable conduits 2	$ 24	$ 677
Available-for-sale Securities, Debt Securities	1,569	1,372
Long-term debt including debt due within one year 6	21,115	22,615
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	458	273
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents 1	1,775	2,280
Marketable securities	133	4
Interests in trade accounts receivable conduits 2	24	677
Equity securities 3	151	140
Total assets at fair value	4,110	4,746
Long-term debt including debt due within one year 6	21,115	22,615
Total liabilities at fair value	21,518	23,127
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents 1	0	0
Marketable securities	0	0
Interests in trade accounts receivable conduits 2	0	0
Equity securities 3	22	88
Total assets at fair value	61	135
Long-term debt including debt due within one year 6	0	0
Total liabilities at fair value	20	31
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents 1	1,775	2,280
Marketable securities	133	4
Interests in trade accounts receivable conduits 2	0	0
Equity securities 3	129	52
Total assets at fair value	4,025	3,934
Long-term debt including debt due within one year 6	21,115	22,615
Total liabilities at fair value	21,498	23,096
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents 1	0	0
Marketable securities	0	0
Interests in trade accounts receivable conduits 2	24	677
Equity securities 3	0	0
Total assets at fair value	24	677
Long-term debt including debt due within one year 6	0	0
Total liabilities at fair value	0	0
US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	662	639
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	662	639
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	0	0
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	662	639
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	0	0
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	907	733
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	907	733
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	0	0
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	907	733
Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Debt Securities	0	0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	40	4
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	1
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	40	4
Interest Rate Swap [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Commodity Contract [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	170	147
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	224	292
Commodity Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	39	47
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	20	31
Commodity Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	131	100
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	204	261
Commodity Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	287	126
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	139	216
Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	0	0
Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	287	126
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	139	216
Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement	0	0
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement	$ 0	$ 0

FAIR VALUE MEASUREMENTS (Level

FAIR VALUE MEASUREMENTS (Level 3 Inputs) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	$ 234	$ 1,663	$ 677	$ 1,237
Gain (loss) included in earnings 2	1	(2)	3	(2)
Purchases 3	0	1,386	0	2,363
Settlements 3	(211)	(1,363)	(656)	(1,914)
Balance at end of period	$ 24	$ 1,684	$ 24	$ 1,684

FAIR VALUE MEASUREMENTS FAIR VA

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Summary of Nonrecurring Measured Fair Values) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 98	$ (12)	$ 263	$ (13)
DowDuPont Cost Synergy Program [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restructuring, Settlement and Impairment Provisions	88		251		$ 687
Asset write-downs and write-offs [Member] | DowDuPont Cost Synergy Program [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restructuring, Settlement and Impairment Provisions	$ 27		$ 75		$ 287

VARIABLE INTEREST ENTITIES (Sch

VARIABLE INTEREST ENTITIES (Schedule of Consolidated Variable Interest Entities, Carrying Amounts of Assets and Liabilities) (Details) - Variable Interest Entity, Primary Beneficiary [Member] - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Pledged	$ 1,078	$ 1,195
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	507	593
Cash and cash equivalents
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Current, Pledged	116	107
Other current assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Current, Pledged	129	131
Net property
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Noncurrent, Pledged	786	907
Other noncurrent assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Noncurrent, Pledged	47	50
Current liabilities
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Current	325	303
Current liabilities | Variable Interest Entities Used to Monetize Accounts Receivable [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Current	1	1
Variable Interest Entity, Consolidated, Liabilities, Current, No Recourse	0	0
Long-term debt
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Noncurrent	147	249
Other noncurrent obligations
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Noncurrent	35	41
Current Assets [Member] | Variable Interest Entities Used to Monetize Accounts Receivable [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Current	7	671
Variable Interest Entity, Consolidated, Assets, Current, Pledged	$ 0	$ 0

VARIABLE INTEREST ENTITIES (Non

VARIABLE INTEREST ENTITIES (Nonconsolidated Variable Interest Entity) (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	$ 3,755	$ 3,742
Variable Interest Entity, Not Primary Beneficiary [Member] | Hemlock Semiconductor LLC [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	0	0
Equity Method Investment, Liability, Noncurrent	(717)	(752)
Variable Interest Entity, Not Primary Beneficiary [Member] | Silicon Inputs Joint Ventures [Member]
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	102	103
Variable Interest Entity, Not Primary Beneficiary [Member] | AFSI [Member]
Variable Interest Entity [Line Items]
Investment in nonconsolidated affiliates	42	51
Other	$ 0	$ 4

RELATD PARTY TRANSACTIONS (Deta

RELATD PARTY TRANSACTIONS (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Common Stock, Dividends, Per Share, Declared		$ 0.46		$ 0.92
Cost of sales	$ 12,400	$ 10,761	$ 23,952	$ 20,955
DowDuPont [Member]
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries	1,053		2,110
Accounts Receivable, Related Parties, Current	$ 388		388		$ 354
Common Stock, Dividends, Per Share, Declared	$ 0.38
DuPont and its Affiliates [Member]
Net sales	$ 64		107
Cost of sales	42		68
Related Party Transaction, Purchases from Related Party	$ 34		$ 78

Uncategorized Items - dow-20180

Label	Element	Value
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (48,000,000)
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	989,000,000
AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (1,037,000,000)