Eastman Chemical (EMN) 10-Q 11 May 20 2020 Q1 Quarterly report Financial data

Cover Page

Cover Page	3 Months Ended
	Mar. 31, 2020shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	1-12626
Entity Registrant Name	EASTMAN CHEMICAL CO
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	62-1539359
Entity Address, Address Line One	200 South Wilcox Drive
Entity Address, City or Town	Kingsport
Entity Address, State or Province	TN
Entity Address, Postal Zip Code	37662
City Area Code	423
Local Phone Number	229-2000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	135,894,258
Entity Central Index Key	0000915389
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Common Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	EMN
Security Exchange Name	NYSE
1.5% notes due May 2023 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.50% Notes Due 2023
Trading Symbol	EMN23
Security Exchange Name	NYSE
1.875% notes due November 2026 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.875% Notes Due 2026
Trading Symbol	EMN26
Security Exchange Name	NYSE

UNAUDITED CONSOLIDATED STATEMEN

UNAUDITED CONSOLIDATED STATEMENTS OF EARNINGS, COMPREHENSIVE INCOME AND RETAINED EARNINGS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Sales	$ 2,241	$ 2,380
Cost of sales	1,664	1,806
Gross profit	577	574
Selling, general and administrative expenses	160	187
Research and development expenses	61	58
Asset impairments and restructuring charges, net	14	32
Other components of post-employment (benefit) cost, net	(30)	(21)
Other (income) charges, net	4	(2)
Earnings before interest and taxes	368	320
Net interest expense	52	56
Earnings before income taxes	316	264
Provision for income taxes	56	55
Net earnings	260	209
Less: Net earnings attributable to noncontrolling interest	2	0
Net earnings attributable to Eastman	$ 258	$ 209
Earnings Per Share, Basic [Abstract]
Basic earnings per share attributable to Eastman	$ 1.90	$ 1.50
Diluted earnings per share attributable to Eastman
Diluted earnings per share attributable to Eastman	$ 1.89	$ 1.49
Comprehensive Income
Net earnings including noncontrolling interest	$ 260	$ 209
Other comprehensive income (loss), net of tax:
Change in cumulative translation adjustment	19	30
Defined benefit pension and other postretirement benefit plans:
Amortization of unrecognized prior service credits	(7)	(7)
Derivatives and hedging:
Unrealized gain (loss) during period	7	10
Reclassification adjustment for (gains) losses included in net income, net	(2)	(2)
Total other comprehensive income (loss), net of tax	17	31
Comprehensive income including noncontrolling interest	277	240
Less: Net earnings attributable to noncontrolling interest	2	0
Comprehensive income attributable to Eastman	275	240
Retained Earnings
Retained earnings at beginning of period	7,965	7,573
Cumulative effect adjustment resulting from adoption of new accounting standards	0	(20)
Net earnings attributable to Eastman	258	209
Cash dividends declared	(90)	(87)
Retained earnings at end of period	$ 8,133	$ 7,675

UNAUDITED CONSOLIDATED STATEM_2

UNAUDITED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents		$ 680	$ 204
Trade receivables, net of allowance for doubtful accounts		1,045	980
Miscellaneous receivables		391	395
Inventories		1,659	1,662
Other current assets		76	80
Total current assets		3,851	3,321
Properties
Properties and equipment at cost		13,082	12,904
Less: Accumulated depreciation		7,584	7,333
Net properties		5,498	5,571
Goodwill		4,417	4,431
Intangible assets, net of accumulated amortization		1,962	2,011
Other noncurrent assets		737	674
Total assets	[1]	16,465	16,008
Current liabilities
Payables and other current liabilities		1,420	1,618
Borrowings due within one year		895	171
Total current liabilities		2,315	1,789
Long-term borrowings		5,399	5,611
Deferred income tax liabilities		924	915
Post-employment obligations		968	1,016
Other long-term liabilities		667	645
Total liabilities		10,273	9,976
Stockholders' equity
Common stock ($0.01 par value – 350,000,000 shares authorized; shares issued – 220,050,159 and 219,638,646 for 2020 and 2019, respectively)		2	2
Additional paid-in capital		2,109	2,105
Retained earnings		8,133	7,965
Accumulated other comprehensive income (loss)		(197)	(214)
Stockholder's Equity before Treasury Stock		10,047	9,858
Less: Treasury stock at cost (84,206,699 shares for 2020 and 83,696,398 shares for 2019)		3,930	3,900
Total Eastman stockholders' equity		6,117	5,958
Noncontrolling interest		75	74
Total equity		6,192	6,032
Total liabilities and stockholders' equity		$ 16,465	$ 16,008
[1]	Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets.

UNAUDITED CONSOLIDATED STATEM_3

UNAUDITED CONSOLIDATED STATEMENTS OF FINANCIAL POSITION (Parenthetical) - $ / shares	Mar. 31, 2020	Dec. 31, 2019
Stockholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	350,000,000	350,000,000
Common stock, shares issued (in shares)	220,050,159	219,638,646
Treasury stock at cost (in shares)	84,206,699	83,696,398

UNAUDITED CONSOLIDATED STATEM_4

UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net earnings	$ 260	$ 209
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	139	155
Asset impairment charges	9	0
Provision for deferred income taxes	12	4
Changes in operating assets and liabilities, net of effect of acquisitions and divestitures:
(Increase) decrease in trade receivables	(72)	(149)
(Increase) decrease in inventories	(18)	(122)
Increase (decrease) in trade payables	(104)	(42)
Pension and other postretirement contributions (in excess of) less than expenses	(52)	(36)
Variable compensation (in excess of) less than expenses	(74)	(77)
Other items, net	71	53
Net cash provided by (used in) operating activities	171	(5)
Investing activities
Additions to properties and equipment	(99)	(106)
Acquisitions, net of cash acquired	0	(19)
Other items, net	(2)	0
Net cash used in investing activities	(101)	(125)
Financing activities
Net increase (decrease) in commercial paper and other borrowings	539	370
Proceeds from borrowings	0	125
Repayment of borrowings	0	(175)
Dividends paid to stockholders	(90)	(87)
Treasury stock purchases	(30)	(125)
Other items, net	(11)	(6)
Net cash provided by financing activities	408	102
Effect of exchange rate changes on cash and cash equivalents	(2)	(3)
Net change in cash and cash equivalents	476	(31)
Cash and cash equivalents at beginning of period	204	226
Cash and cash equivalents at end of period	$ 680	$ 195

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES (Notes)	3 Months Ended
	Mar. 31, 2020
Significant Accounting Policies [Abstract]
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared by Eastman Chemical Company ("Eastman" or the "Company") in accordance and consistent with the accounting policies stated in the Company's 2019 Annual Report on Form 10-K , and should be read in conjunction with the consolidated financial statements in Part II, Item 8 of that report, with the exception of the items noted below. The December 31, 2019 financial position data included herein was derived from the audited consolidated financial statements included in the 2019 Annual Report on Form 10-K but does not include all disclosures required by accounting principles generally accepted in the United States ("GAAP"). In the opinion of management, the unaudited consolidated financial statements include all normal recurring adjustments necessary for fair statement of the interim financial information in conformity with GAAP. These statements contain some amounts that are based upon management estimates and judgments. Future actual results could differ from such current estimates. The unaudited consolidated financial statements include assets, liabilities, sales revenue, and expenses of all majority-owned subsidiaries and joint ventures in which a controlling interest is maintained. Eastman accounts for other joint ventures and investments where it exercises significant influence on the equity basis. Intercompany transactions and balances are eliminated in consolidation. Certain prior period data has been reclassified in the consolidated financial statements and accompanying footnotes to conform to current period presentation. Recently Adopted Accounting Standards Accounting Standards Update ("ASU") 2016-13 Financial Instruments - Credit Losses: On January 1, 2020, Eastman adopted this standard, and related releases, under the various required transition methods. The amendments require a financial asset (including trade receivables) to be presented at the net amount expected to be collected through the use of allowances for credit losses valuation account. The income statement will reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The adoption of this standard did not result in a material impact on the Company's financial statements and related disclosures. ASU 2018-13 Fair Value Measurement - Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement: On January 1, 2020, Eastman adopted this standard that is a part of the Financial Accounting Standards Board's ("FASB") disclosure framework project to improve the effectiveness of disclosures in the notes to financial statements. The primary changes applicable to Eastman in this update are the disclosures of fair value levels, assessment thereof, and transfers between those levels. The adoption under the various required transition methods did not impact the Company's related disclosures. ASU 2018-18 Collaborative Arrangements - Clarifying the Interaction between Topic 808 (Collaborative Arrangements) and Topic 606 (Revenue from Contracts with Customers): On January 1, 2020, Eastman adopted this standard, retrospectively to the date of the initial application of Topic 606 on January 1, 2017, that provides clarification in regards to which contracts are accounted for under Topic 808 and Topic 606 as well as alignment of guidance between the two pronouncements. The adoption of this standard did not impact the Company's financial statements and related disclosures. ASU 2019-01 Leases - Codification Improvements: On January 1, 2020, Eastman adopted this standard which was applied as of the adoption date and under the same transition methodology of ASU 2016-02 Lease previously adopted on January 1, 2019. The FASB issued this update in response to stakeholder inquiries regarding the new leasing standard. The adoption of this standard did not impact the Company's financial statements and related disclosures. ASU 2020-04 Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting : Eastman adopted this standard when issued and effective on March 12, 2020. The FASB issued this update to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform (the global financial markets transition in contracts, hedging relationships, and other transactions away from referencing the London Interbank Offered Rate (LIBOR) and other interbank offered rates and toward new reference rates) on financial reporting. As reference reform has not impacted Eastman as of the issuance and effective date, the adoption of this standard did not impact the Company's financial statements and related disclosures. Accounting Standards Issued But Not Adopted as of March 31, 2020 ASU 2018-14 Retirement Benefits - Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans: In August 2018, the FASB issued this update as a part of its disclosure framework project to improve the effectiveness of disclosures in the notes to financial statements. The primary change impacting Eastman is the addition of disclosures related to significant gains and losses related to changes in the benefit obligation for the period and weighted-average interest crediting rates for cash balance plans. This standard is effective for fiscal years ending after December 15, 2020 and early adoption is permitted. Upon adoption, this update is to be applied on a retrospective basis to all periods presented. Management does not expect that changes required by the new standard will materially impact the Company's related disclosures. ASU 2019-12 Income Taxes - Simplifying the Accounting for Income Taxes : In December 2019, the FASB issued this update as part of its initiative to reduce complexity in accounting standards which removes certain exceptions and provides simplification to specific tax items. This standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption is permitted, including adoption in any interim period for which financial statements have not yet been issued. Adoption methods vary based on the specific items impacted. Management is currently evaluating the impact on the Company's financial statements and related disclosures. ASU 2020-01 Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815: In January 2020, the FASB issued a clarification that an entity should consider observable transactions that require the application or discontinuance of the equity method of accounting for the purposes of applying the measurement alternative and clarification that certain forward contracts and purchased options to purchase securities that, upon settlement, would be accounted for under the equity method of accounting. This standard is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted, including adoption in any interim period for which financial statements have not yet been issued. The update is to be applied prospectively. Management does not expect that changes required by the new standard will materially impact the Company's financial statements and related disclosures. Working Capital Management and Off Balance Sheet Arrangements In 2019, the Company expanded its off balance sheet, uncommitted accounts receivable factoring program under which entire invoices may be sold, without recourse, to third-party financial institutions. Under these agreements, the Company sells the invoices at face value, less a transaction fee, which substantially equals the carrying value and fair value with no gain or loss recognized and no credit loss exposure is retained. Available capacity under these agreements, which the Company uses as a source of working capital funding, is dependent on the level of accounts receivable eligible to be sold and the financial institutions' willingness to purchase such receivables. In addition, certain agreements also require that the Company continue to service, administer, and collect the sold accounts receivable at market rates. The total amount of receivables sold in first quarter 2020 and 2019 were $457 million and $101 million, respectively. The Company works with suppliers to optimize payment terms and conditions on accounts payable to enhance timing of working capital and cash flows. As part of these efforts, in 2019, the Company introduced a voluntary supply chain finance program to provide suppliers with the opportunity to sell receivables due from Eastman to a participating financial institution. Eastman's responsibility is limited to making payments on the terms originally negotiated with suppliers, regardless of whether the suppliers sells their receivables to the financial institution. The range of payment terms Eastman negotiates with suppliers are consistent, regardless of whether a supplier participates in the program. All of Eastman's accounts payable and associated payments are reported consistently in the Company's Consolidated Statements of Financial Position and Consolidated Statements of Cash Flows regardless of whether they are associated with a vendor who participates in the program.

INVENTORIES

INVENTORIES	3 Months Ended
	Mar. 31, 2020
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES March 31, December 31, (Dollars in millions) 2020 2019 Finished goods $ 1,138 $ 1,114 Work in process 221 220 Raw materials and supplies 548 576 Total inventories at FIFO or average cost 1,907 1,910 Less: LIFO reserve 248 248 Total inventories $ 1,659 $ 1,662 Inventories valued on the last-in, first-out ("LIFO") method were approximately 50 percent of total inventories at both March 31, 2020 and December 31, 2019.

PAYABLES AND OTHER CURRENT LIAB

PAYABLES AND OTHER CURRENT LIABILITIES	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
PAYABLES AND OTHER CURRENT LIABILITIES	PAYABLES AND OTHER CURRENT LIABILITIES March 31, December 31, (Dollars in millions) 2020 2019 Trade creditors $ 770 $ 890 Accrued payroll and variable compensation 127 176 Accrued taxes 79 89 Post-employment obligations 84 93 Dividends payable to shareholders 90 90 Other 270 280 Total payables and other current liabilities $ 1,420 $ 1,618 "Other" consists primarily of accruals for interest payable, the current portion of operating lease liabilities, the current portion of derivative hedging liabilities, the current portion of environmental liabilities, and miscellaneous accruals.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
PROVISION FOR INCOME TAXES	INCOME TAXES First Quarter (Dollars in millions) 2020 2019 $ % $ % Provision for income taxes and tax rate $ 56 18 % $ 55 21 % First quarter 2019 effective tax rate included adjustments to the tax provision to reflect planned amendments to and expected finalization of a prior year's income tax return in a foreign jurisdiction resulting in a higher effective tax rate compared to first quarter 2020. At March 31, 2020, Eastman had $202 million in unrecognized tax benefits. At the end of the first quarter, it is reasonably possible that, as a result of the resolution of federal, state, and foreign examinations and appeals, and the expiration of various statutes of limitation, the total amounts of unrecognized tax benefits could decrease by $28 million within the next 12 months.

BORROWINGS

BORROWINGS	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
BORROWINGS	BORROWINGS March 31, December 31, (Dollars in millions) 2020 2019 Borrowings consisted of: 4.5% notes due January 2021 $ 185 $ 185 3.5% notes due December 2021 298 298 3.6% notes due August 2022 741 741 1.50% notes due May 2023 (1) 821 840 7 1/4% debentures due January 2024 198 198 7 5/8% debentures due June 2024 43 43 3.8% notes due March 2025 700 695 1.875% notes due November 2026 (1) 543 556 7.60% debentures due February 2027 195 195 4.5% notes due December 2028 493 493 4.8% notes due September 2042 493 493 4.65% notes due October 2044 874 874 Commercial paper and short-term borrowings 310 171 Credit facilities borrowings 400 — Total borrowings 6,294 5,782 Borrowings due within one year 895 171 Long-term borrowings $ 5,399 $ 5,611 (1) The carrying value of the euro-denominated 1.50% notes due May 2023 and 1.875% notes due November 2026 will fluctuate with changes in the euro exchange rate. The carrying value of these euro-denominated borrowings have been designated as non-derivative net investment hedges of a portion of the Company's net investments in euro functional-currency denominated subsidiaries to offset foreign currency fluctuations. Revolving Credit Facilities and Commercial Paper Borrowings The Company has access to a $1.50 billion revolving credit agreement (the "Credit Facility") expiring October 2023. Borrowings under the Credit Facility are subject to interest at varying spreads above quoted market rates and a commitment fee is paid on the total unused commitment. The Credit Facility provides available liquidity for general corporate purposes and supports commercial paper borrowings. Commercial paper borrowings are classified as short-term. At March 31, 2020, the Company's borrowings under the Credit Facility were $400 million with an interest rate of 2.17 percent. At December 31, 2019, the Company had no outstanding borrowings under the Credit Facility. At March 31, 2020, the Company's commercial paper borrowings were $310 million with a weighted average interest rate of 3.13 percent. At December 31, 2019, the Company's commercial paper borrowings were $170 million with a weighted average interest rate of 2.03 percent. The Company had access to up to $250 million under an accounts receivable securitization agreement (the "A/R Facility") which expired April 2020. Eastman Chemical Financial Corporation ("ECFC"), a subsidiary of the Company, had an agreement to sell interests in trade receivables under the A/R Facility to a third party purchaser. Third party creditors of ECFC had first priority claims on the assets of ECFC before those assets would be available to satisfy the Company's general obligations. Borrowings under the A/R Facility were subject to interest rates based on a spread over the lender's borrowing costs, and ECFC paid a fee to maintain availability of the A/R Facility. In first quarter 2020, the Company borrowed a total of $350 million under the A/R Facility and repaid a total of $350 million using available cash. At March 31, 2020 and December 31, 2019, the Company had no borrowings outstanding under the A/R Facility. The Credit Facility and A/R Facility contain customary covenants, including requirements to maintain certain financial ratios, that determine the events of default, amounts available, and terms of borrowings. The Company was in compliance with all covenants at both March 31, 2020 and December 31, 2019. Fair Value of Borrowings Eastman has classified its total borrowings at March 31, 2020 and December 31, 2019 under the fair value hierarchy as defined in the accounting policies in Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . The fair value for fixed-rate debt securities is based on quoted market prices for the same or similar debt instruments and is classified as Level 2. The fair value for the Company's other borrowings, primarily under the Credit Facility and commercial paper, equals the carrying value and is classified as Level 2. At March 31, 2020 and December 31, 2019, the fair value of total borrowings was $6.606 billion and $6.275 billion, respectively. The Company had no borrowings classified as Level 3 as of March 31, 2020 and December 31, 2019. Subsequent Actions In April 2020, the Company borrowed $250 million under a new 364-Day Term Loan Credit Agreement (the "Term Loan") as a precautionary measure due to increased financial market volatility, particularly in the availability and terms of commercial paper, resulting from the COVID-19 coronavirus global pandemic ("COVID-19"). Borrowings under the Term Loan are subject to interest at varying spreads above quoted market rates depending on the Company's public debt rating and with principal and accrued interest payable April 2021. The Term Loan contains the same customary covenants and events of default, including maintenance of certain financial ratios, as the Credit Facility, with payment of customary fees. Additionally, the Company amended the Credit Facility and the Term Loan maximum debt covenants to reflect the higher cash balance to enhance liquidity due to, and the expected negative impact on operating results of, COVID-19 and added a new restrictive covenant prohibiting stock repurchases until June 30, 2021 in the event certain financial ratios are exceeded.

DERIVATIVE AND NON-DERIVATIVE F

DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS	3 Months Ended
	Mar. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Overview of Hedging Programs Eastman is exposed to market risks, such as changes in foreign currency exchange rates, commodity prices, and interest rates. To mitigate these market risks and their effects on the cash flows of the underlying transactions and investments in foreign subsidiaries, the Company uses various derivative and non-derivative financial instruments, when appropriate, in accordance with the Company's hedging strategy and policies. Designation is performed on a specific exposure basis to support hedge accounting. The Company does not enter into derivative transactions for speculative purposes. For further information on hedging programs, see Note 9, "Derivative and Non-Derivative Financial Instruments", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . Cash Flow Hedges Cash flow hedges are derivative instruments designated as and used to hedge the exposure to variability in expected future cash flows that are attributable to a particular risk. The derivative instruments that are designated and qualify as a cash flow hedge are reported on the balance sheet at fair value and the changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the anticipated cash flows of the underlying exposures being hedged. The change in the hedge instrument is reported as a component of Accumulated other comprehensive income (loss) ("AOCI") located in the Unaudited Consolidated Statements of Financial Position and reclassified in earnings in the same period or periods during which the hedged transaction affects earnings. Cash flows from cash flow hedges are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows. In first quarter 2020, Eastman entered into a forward-starting interest rate swap with a total notional amount of $25 million to mitigate the risk of variability in interest rates for an expected long-term debt issuance by August 2022. This swap was designated as a cash flow hedge and will be settled upon debt issuance. Fair Value Hedges Fair value hedges are defined as derivative or non-derivative instruments designated as and used to hedge the exposure to changes in the fair value of an asset or a liability or an identified portion thereof that is attributable to a particular risk. The derivative instruments that are designated and qualify as fair value hedges are recognized on the balance sheet at fair value and the changes in fair value of these hedging instruments are offset in part or in whole by corresponding changes in the anticipated fair value of the underlying exposures being hedged. The net of the change in the hedge instrument and item being hedged for qualifying fair value hedges is recognized in earnings in the same period or periods during which the hedged transaction affects earnings. Cash flows from fair value hedges are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows. Net Investment Hedges Net investment hedges are defined as derivative or non-derivative instruments designated as and used to hedge the foreign currency exposure of the net investments in certain foreign operations. The net of the change in the hedge instrument and item being hedged for qualifying net investment hedges is reported as a component of the "Cumulative Translation Adjustment" ("CTA") within AOCI located in the Unaudited Consolidated Statements of Financial Position. Cash flows from the CTA component are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows. Recognition in earnings of amounts previously recognized in CTA is limited to circumstances such as complete or substantially complete liquidation of the net investment in the hedged foreign operation. In the event of a complete or substantially complete liquidation of the net investment, cash flows from net investment hedges are classified as investing activities in the Unaudited Consolidated Statements of Cash Flows. For derivative cross-currency interest rate swap net investment hedges, gains and losses representing hedge components excluded from the assessment of effectiveness are recognized in CTA within AOCI and recognized in earnings through the periodic swap interest accruals. The cross-currency interest rate swaps designated as net investment hedges are included as part of "Other long-term liabilities" or "Other noncurrent assets" within the Unaudited Consolidated Statements of Financial Position. Cash flows from excluded components are classified as operating activities in the Unaudited Consolidated Statements of Cash Flows. Summary of Financial Position and Financial Performance of Hedging Instruments The following table presents the notional amounts outstanding at March 31, 2020 and December 31, 2019 associated with Eastman's hedging programs. Notional Outstanding March 31, 2020 December 31, 2019 Derivatives designated as cash flow hedges: Foreign Exchange Forward and Option Contracts (in millions) EUR/USD (in EUR) €585 €630 Commodity Forward and Collar Contracts Feedstock (in million barrels) 1 1 Energy (in million british thermal units) 21 27 Interest rate swaps for the future issuance of debt (in millions) $25 — Derivatives designated as fair value hedges: Fixed-for-floating interest rate swaps (in millions) $75 $75 Derivatives designated as net investment hedges: Cross-currency interest rate swaps (in millions) EUR/USD (in EUR) €851 €851 Non-derivatives designated as net investment hedges: Foreign Currency Net Investment Hedges (in millions) EUR/USD (in EUR) €1,243 €1,243 Fair Value Measurements All the Company's derivative assets and liabilities are currently classified as Level 2. Level 2 fair value is based on estimates using standard pricing models. These standard pricing models use inputs that are derived from or corroborated by observable market data such as interest rate yield curves and currency spot and forward rates. The fair value of commodity contracts is derived using forward curves supplied by an industry recognized and unrelated third party. In addition, on an ongoing basis, the Company tests a subset of its valuations against valuations received from transaction counterparties to validate the accuracy of its standard pricing models. Counterparties to these derivative contracts are highly rated financial institutions which the Company believes carry minimal risk of nonperformance, and the Company diversifies its positions among such counterparties to reduce its exposure to counterparty risk and credit losses. The Company monitors the creditworthiness of its counterparties on an ongoing basis. The Company did not recognize a credit loss during first quarter 2020 or 2019. All the Company's derivative contracts are subject to master netting arrangements, or similar agreements, which provide for the option to settle contracts on a net basis when they settle on the same day and in the same currency. In addition, these arrangements provide for a net settlement of all contracts with a given counterparty in the event that the arrangement is terminated due to the occurrence of default or a termination event. The Company does not have any cash collateral due under such agreements. The Company has elected to present derivative contracts on a gross basis within the Unaudited Consolidated Statements of Financial Position. The following table presents the financial assets and liabilities valued on a recurring and gross basis and includes where the financial assets and liabilities are located within the Unaudited Consolidated Statements of Financial Position as of March 31, 2020 and December 31, 2019. The Financial Position and Fair Value Measurements of Hedging Instruments on a Gross Basis (Dollars in millions) Derivative Type Statements of Financial March 31, 2020 December 31, 2019 Derivatives designated as cash flow hedges: Foreign exchange contracts Other current assets $ 18 $ 13 Foreign exchange contracts Other noncurrent assets 11 2 Derivatives designated as fair value hedges: Fixed-for-floating interest rate swap Other noncurrent assets 4 1 Derivatives designated as net investment hedges: Cross-currency interest rate swaps Other current assets 17 — Cross-currency interest rate swaps Other noncurrent assets 110 68 Total Derivative Assets $ 160 $ 84 Derivatives designated as cash flow hedges: Commodity contracts Payables and other current liabilities $ 22 $ 26 Commodity contracts Other long-term liabilities 1 2 Foreign exchange contracts Payables and other current liabilities — 1 Foreign exchange contracts Other long-term liabilities — 2 Forward starting interest rate swap contracts Other long-term liabilities 1 — Derivatives designated as fair value hedges: Fixed-for-floating interest rate swap Long-term borrowings — 1 Total Derivative Liabilities $ 24 $ 32 Total Net Derivative Assets (Liabilities) $ 136 $ 52 In addition to the fair value associated with derivative instruments designated as cash flow hedges, fair value hedges, and net investment hedges noted in the table above, the Company had non-derivative instruments designated as foreign currency net investment hedges with a carrying value of $1.4 billion at both March 31, 2020 and December 31, 2019. The designated foreign currency-denominated borrowings are included as part of "Long-term borrowings" within the Unaudited Consolidated Statements of Financial Position. For additional fair value measurement information, see Note 1, "Significant Accounting Policies", and Note 9, "Derivative and Non-Derivative Financial Instruments", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . As of March 31, 2020 and December 31, 2019, the following amounts were included on the Unaudited Consolidated Statements of Financial Position related to cumulative basis adjustments for fair value hedges. (Dollars in millions) Carrying amount of the hedged liabilities Cumulative amount of fair value hedging loss adjustment included in the carrying amount of the hedged liability Line item in the Unaudited Consolidated Statements of Financial Position in which the hedged item is included March 31, 2020 December 31, 2019 March 31, December 31, 2019 Long-term borrowings (1) $ 770 $ 763 $ (2) $ (7) (1) At March 31, 2020 and December 31, 2019, the cumulative amount of fair value hedging loss adjustment remaining for hedged liabilities for which hedge accounting has been discontinued was $6 million and $7 million, respectively. The following table presents the effect of the Company's hedging instruments on "Other comprehensive income (loss), net of tax" ("OCI") and financial performance for first quarter 2020 and 2019. Change in amount of after tax gain (loss) recognized in OCI on derivatives Pre-tax amount of gain (loss) reclassified from OCI into earnings (Dollars in millions) First Quarter First Quarter Hedging Relationships 2020 2019 2020 2019 Derivatives in cash flow hedging relationships: Commodity contracts $ (9) $ 7 $ (1) $ (3) Foreign exchange contracts 13 1 6 6 Forward starting interest rate and treasury lock swap contracts 1 1 (2) (1) Non-derivatives in net investment hedging relationships (pre-tax): Net investment hedges 33 26 — — Derivatives in net investment hedging relationships (pre-tax): Cross-currency interest rate swaps 18 19 — — Cross-currency interest rate swaps excluded component 41 6 — — The following table presents the effect of fair value and cash flow hedge accounting on the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings for first quarter 2020 and 2019. Location and Amount of Gain or (Loss) Recognized in Earnings on Fair Value and Cash Flow Hedging Relationships First Quarter 2020 2019 (Dollars in millions) Sales Cost of Sales Net Interest Expense Sales Cost of Sales Net Interest Expense Total amounts of income and expense line items presented in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings in which the effects of fair value or cash flow hedges are recognized $ 2,241 $ 1,664 $ 52 $ 2,380 $ 1,806 $ 56 The effects of fair value and cash flow hedging: Gain or (loss) on cash flow hedging relationships: Interest contracts (forward starting interest rate and treasury lock swap contracts): Amount reclassified from AOCI into earnings (2) (1) Commodity Contracts: Amount reclassified from AOCI into earnings (1) (3) Foreign Exchange Contracts: Amount reclassified from AOCI into earnings 6 6 The Company enters into foreign exchange derivatives denominated in multiple currencies which are transacted and settled in the same quarter. These derivatives are not designated as hedges due to the short-term nature and the gains or losses on these derivatives are marked-to-market in line item "Other (income) charges, net" of the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings. The Company recognized a net gain on these derivatives of $7 million and a net loss on these derivatives of $3 million during first quarter 2020 and 2019, respectively. Pre-tax monetized positions and mark-to-market gains and losses from raw materials and energy, currency, and certain interest rate hedges that were included in AOCI included net gains of $32 million and net losses of $50 million at March 31, 2020 and December 31, 2019, respectively. Gains recognized between March 31, 2020 and December 31, 2019 primarily resulted from a decrease in foreign currency exchange rates associated with the euro, partially offset by commodity price decreases. If recognized, approximately $29 million in pre-tax losses, as of March 31, 2020, would be reclassified into earnings during the next 12 months.

RETIREMENT PLANS

RETIREMENT PLANS	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
RETIREMENT PLANS	RETIREMENT PLANS Defined Benefit Pension Plans and Other Postretirement Benefit Plans Eastman maintains defined benefit pension plans that provide eligible employees with retirement benefits. In addition, Eastman provides life insurance for eligible retirees hired prior to January 1, 2007. The Company provides a subsidy for pre-Medicare health care and dental benefits to eligible retirees hired prior to January 1, 2007 that will end on December 31, 2021. Company funding is also provided for eligible Medicare retirees hired prior to January 1, 2007 with a health reimbursement arrangement. Costs recognized for these benefits are estimated amounts, which may change as actual costs for the year are determined. For additional information regarding retirement plans, see Note 10, "Retirement Plans", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . Components of net periodic benefit (credit) cost were as follows: First Quarter Pension Plans Other Postretirement Benefit Plans 2020 2019 2020 2019 (Dollars in millions) U.S. Non-U.S. U.S. Non-U.S. Service cost $ 7 $ 4 $ 7 $ 3 $ — $ — Interest cost 14 4 19 5 5 6 Expected return on assets (34) (8) (32) (8) (1) (1) Amortization of: Prior service credit, net — — — — (10) (10) Net periodic benefit (credit) cost $ (13) $ — $ (6) $ — $ (6) $ (5)

LEASES AND OTHER COMMITMENTS

LEASES AND OTHER COMMITMENTS	3 Months Ended
	Mar. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments Disclosure [Text Block]	LEASES AND OTHER COMMITMENTS Leases There are two types of leases: finance and operating. Both types of leases have associated right-to-use assets and lease liabilities that are valued at the present value of the lease payments and recognized on the Unaudited Consolidated Statements of Financial Position. The discount rate used in the measurement of a right-to-use asset and lease liability is the rate implicit in the lease whenever that rate is readily determinable. If the rate implicit in the lease is not readily determinable, the collateralized incremental borrowing rate is used. The Company elected the accounting policy not to apply the recognition and measurement requirements to short-term leases with a term of 12 months or less and do not include a bargain purchase option. The Company has operating leases, as a lessee, with customary terms that do not include: significant variable lease payments; significant reasonably certain extensions or options required to be included in the lease term; restrictions; or other covenants for real property, rolling stock, and machinery and equipment. Real property leases primarily consist of office space and rolling stock leases primarily for railcars and fleet vehicles. At March 31, 2020 and December 31, 2019, operating right-to-use assets of $187 million and $197 million, respectively, are included as a part of "Other noncurrent assets" in the Unaudited Consolidated Statements of Financial Position and includes $8 million at both periods of assets previously classified as lease intangibles. Operating lease liabilities are included as a part of "Payables and other current liabilities" and "Other long-term liabilities" in the Unaudited Consolidated Statements of Financial Position. As of March 31, 2020, reconciliation of lease payments and operating lease liabilities is provided below: (Dollars in millions) Operating lease liabilities Remainder of 2020 $ 47 2021 51 2022 40 2023 27 2024 16 2025 and beyond 33 Total lease payments 214 Less: amounts of lease payments representing interest 28 Present value of future lease payments 186 Less: current obligations under leases 41 Long-term lease obligations $ 145 The Company has operating leases, primarily leases for railcars, with terms that require the Company to guarantee a portion of the residual value of the leased assets upon termination of the lease that will expire beginning in first quarter 2021. Residual guarantee payments that become probable and estimable are recognized as rent expense over the remaining life of the applicable lease. Management's current expectation is that the likelihood of material residual guarantee payments is remote. Lease costs during the period and other information is provided below: First Quarter (Dollars in millions) 2020 2019 Lease costs: Operating lease costs $ 19 $ 15 Short-term lease costs 9 11 Sublease income (1) — Total $ 27 $ 26 Other operating lease information: Cash paid for amounts included in the measurement of lease liabilities $ 18 $ 17 Right-to-use assets obtained in exchange for new lease liabilities $ 16 $ 11 Weighted-average remaining lease term, in years 5 5 Weighted-average discount rate 3.9 % 4.2 % Debt and Other Commitments Eastman's obligations are summarized in the following table. (Dollars in millions) Payments Due for Period Debt Securities Credit Facilities and Other Interest Payable Purchase Obligations Operating Leases Other Liabilities Total 2020 $ — $ 710 $ 154 $ 131 $ 47 $ 144 $ 1,186 2021 483 — 185 151 51 74 944 2022 741 — 173 100 40 83 1,137 2023 821 — 153 89 27 88 1,178 2024 241 — 136 98 16 89 580 2025 and beyond 3,298 — 1,413 1,958 33 1,111 7,813 Total $ 5,584 $ 710 $ 2,214 $ 2,527 $ 214 $ 1,589 $ 12,838 Estimated future payments of debt securities assumes the repayment of principal upon stated maturity, and actual amounts and the timing of such payments may differ materially due to repayment or other changes in the terms of such debt prior to maturity. The Company had various purchase obligations at March 31, 2020, totaling approximately $2.5 billion over a period of approximately 30 years for materials, supplies, and energy incident to the ordinary conduct of business. Amounts in other liabilities represent the current estimated cash payments required to be made by the Company primarily for pension and other postretirement benefits, environmental loss contingency reserves, uncertain tax liabilities, accrued compensation benefits, commodity and foreign exchange hedging in the periods indicated. Due to uncertainties in the timing of the effective settlement of tax positions with respect to taxing authorities, management is unable to determine the timing of payments related to uncertain tax liabilities and these amounts are included in the "2025 and beyond" line item. The amount and timing of pension and other postretirement benefit payments included in other liabilities is dependent upon interest rates, health care cost trends, actual returns on plan assets, retirement and attrition rates of employees, continuation or modification of the benefit plans, and other factors. Such factors can significantly impact the amount and timing of any future contributions by the Company. Excess contributions are periodically made by management in order to keep the plans' funded status above 80 percent under the funding provisions of the Pension Protection Act to avoid partial benefit restrictions on accelerated forms of payment. The Company's U.S. defined benefit pension plans are not currently under any benefit restrictions. See Note 7, "Retirement Plans". The resolution of uncertainties related to environmental matters included in other liabilities may have a material adverse effect on the Company's consolidated results of operations in the period recognized, however, because of the availability of legal defenses, the Company's preliminary assessment of actions that may be required, and, if applicable, the expected sharing of costs, management does not believe that the Company's liability for these environmental matters, individually or in the aggregate, will be material to the Company's consolidated financial position, results or operations, or cash flows. See Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K for the Company's accounting policy for environmental costs and see Note 9, "Environmental Matters and Asset Retirement Obligations". Guarantees and claims also arise during the ordinary course of business from relationships with customers, suppliers, joint venture partners, and other parties when the Company undertakes an obligation to guarantee the performance of others if specified triggering events occur. Non-performance under a contract could trigger an obligation of the Company. The Company's current other guarantees include guarantees relating to intellectual property, environmental matters, and other indemnifications and have arisen through the normal course of business. The ultimate effect on future financial results is not subject to reasonable estimation because considerable uncertainty exists as to the final outcome of these claims, if they were to occur. These other guarantees have terms up to 30 years with maximum potential future payments of approximately $35 million in the aggregate, with none of these guarantees being individually significant to the Company's operating results, financial position, or liquidity. Management's current expectation is that future payment or performance related to non-performance under other guarantees is remote.

ENVIRONMENTAL MATTERS AND ASSET

ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS	3 Months Ended
	Mar. 31, 2020
Accrual for Environmental Loss Contingencies Disclosure [Abstract]
Environmental Matters	ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS Certain Eastman manufacturing facilities generate hazardous and nonhazardous wastes, the treatment, storage, transportation, and disposal of which are regulated by various governmental agencies. In connection with the cleanup of various hazardous waste sites, the Company, along with many other entities, has been designated a potentially responsible party ("PRP") by the U.S. Environmental Protection Agency under the Comprehensive Environmental Response, Compensation and Liability Act, which potentially subjects PRPs to joint and several liability for certain cleanup costs. In addition, the Company will incur costs for environmental remediation and closure and post-closure under the federal Resource Conservation and Recovery Act. Reserves for environmental contingencies have been established in accordance with Eastman's policies described in Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . The resolution of uncertainties related to environmental matters included in other liabilities may have a material adverse effect on the Company's consolidated results of operations in the period recognized, however, because of the availability of legal defenses, the Company's preliminary assessment of actions that may be required, and, if applicable, the expected sharing of costs, management does not believe that the Company's liability for these environmental matters, individually or in the aggregate, will be material to the Company's consolidated financial position, results or operations, or cash flows. The Company's total reserve for environmental loss contingencies was $285 million and $287 million at March 31, 2020 and December 31, 2019, respectively. Environmental Remediation and Environmental Asset Retirement Obligations The Company's total environmental reserve that management believes to be probable and reasonably estimable for environmental contingencies, including remediation costs and asset retirement obligations, is included as part of "Payables and other current liabilities" and "Other long-term liabilities" in the Unaudited Consolidated Statements of Financial Position as follows: (Dollars in millions) March 31, 2020 December 31, 2019 Environmental contingent liabilities, current $ 20 $ 20 Environmental contingent liabilities, long-term 265 267 Total $ 285 $ 287 Environmental Remediation Estimated future environmental expenditures for undiscounted remediation costs ranged from the best estimate or minimum of $258 million to the maximum of $484 million at March 31, 2020 and from the best estimate or minimum of $260 million to the maximum of $487 million at December 31, 2019. The best estimate or minimum estimated future environmental expenditures are considered to be probable and reasonably estimable and include the amounts recognized at both March 31, 2020 and December 31, 2019. Reserves for environmental remediation include liabilities expected to be paid within approximately 30 years. The amounts charged to pre-tax earnings for environmental remediation and related charges are included within "Cost of sales" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings. Changes in the reserves for environmental remediation liabilities during first three months 2020 and full year 2019 are summarized below: (Dollars in millions) Environmental Remediation Liabilities Balance at December 31, 2018 $ 271 Changes in estimates recognized in earnings and other 4 Cash reductions (15) Balance at December 31, 2019 260 Changes in estimates recognized in earnings and other 2 Cash reductions (4) Balance at March 31, 2020 $ 258 Environmental Asset Retirement Obligations An asset retirement obligation is an obligation for the retirement of a tangible long-lived asset that is incurred upon the acquisition, construction, development, or normal operation of that long-lived asset. The Company recognizes asset retirement obligations in the period in which they are incurred if a reasonable estimate of fair value can be made. The asset retirement obligations are discounted to expected present value and subsequently adjusted for changes in fair value. The associated estimated asset retirement costs are capitalized as part of the carrying value of the long-lived assets and depreciated over their useful life. Environmental asset retirement obligations consist primarily of closure and post-closure costs. For sites that have environmental asset retirement obligations, the best estimate recognized to date for these environmental asset retirement obligation costs was $27 million at both March 31, 2020 and December 31, 2019. Non-Environmental Asset Retirement Obligations The Company has contractual asset retirement obligations not associated with environmental liabilities. Eastman's non-environmental asset retirement obligations are primarily associated with the future closure of leased manufacturing assets at Pace, Florida and Oulu, Finland. These recognized non-environmental asset retirement obligations were $48 million at both March 31, 2020 and December 31, 2019, and is included as part of "Other long-term liabilities" in the Unaudited Consolidated Statements of Financial Position.

LEGAL MATTERS

LEGAL MATTERS	3 Months Ended
	Mar. 31, 2020
Loss Contingency, Information about Litigation Matters [Abstract]
LEGAL MATTERS	LEGAL MATTERSFrom time to time, Eastman and its operations are parties to, or targets of, lawsuits, claims, investigations and proceedings, including product liability, personal injury, asbestos, patent and intellectual property, commercial, contract, environmental, antitrust, health and safety, and employment matters, which are handled and defended in the ordinary course of business. While the Company is unable to predict the outcome of these matters, it does not believe, based upon currently available facts, that the ultimate resolution of any such pending matters will have a material adverse effect on its overall financial condition, results of operations, or cash flows.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	3 Months Ended
	Mar. 31, 2020
Stockholders' Equity Note [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS' EQUITY Reconciliations of the changes in stockholders' equity for first quarter 2020 and 2019 are provided below: (Dollars in millions, except per share amount) Common Stock at Par Value Additional Paid-in Capital Retained Earnings Accumulated Other Comprehensive Income (Loss) Treasury Stock at Cost Total Eastman Stockholders' Equity Noncontrolling Interest Total Equity Balance at December 31, 2019 $ 2 $ 2,105 $ 7,965 $ (214) $ (3,900) $ 5,958 $ 74 $ 6,032 Net Earnings — — 258 — — 258 2 260 Cash Dividends Declared (1) ($0.66 per share) — — (90) — — (90) — (90) Other Comprehensive Income (Loss) — — — 17 — 17 — 17 Share Based Compensation Expense (2) — 15 — — — 15 — 15 Other (3) — (11) — — — (11) (1) (12) Share Repurchase — — — — (30) (30) — (30) Balance at March 31, 2020 $ 2 $ 2,109 $ 8,133 $ (197) $ (3,930) $ 6,117 $ 75 $ 6,192 (Dollars in millions, except per share amount) Common Stock at Par Value Additional Paid-in Capital Retained Earnings Accumulated Other Comprehensive Income (Loss) Treasury Stock at Cost Total Eastman Stockholders' Equity Noncontrolling Interest Total Equity Balance at December 31, 2018 $ 2 $ 2,048 $ 7,573 $ (245) $ (3,575) $ 5,803 $ 75 $ 5,878 Cumulative Effect of Adoption of New Accounting Standards (4) — — (20) 20 — — — — Net Earnings — — 209 — — 209 — 209 Cash Dividends Declared (1) ($0.62 per share) — — (87) — — (87) — (87) Other Comprehensive Income (Loss) — — — 31 — 31 — 31 Share Based Compensation Expense (2) — 18 — — — 18 — 18 Stock Option Exercises — 4 — — — 4 — 4 Other (3) — (10) — — — (10) 1 (9) Share Repurchase — — — — (125) (125) — (125) Balance at March 31, 2019 $ 2 $ 2,060 $ 7,675 $ (194) $ (3,700) $ 5,843 $ 76 $ 5,919 (1) Cash dividends declared consists of cash dividends paid and dividends declared but unpaid. (2) Share-based compensation expense is the fair value of share-based awards. (3) Additional paid-in capital consists of value of shares withheld for employees' taxes on vesting of share-based compensation awards. (4) On January 1, 2019, Eastman adopted ASU 2018-02 Income Statement - Reporting Comprehensive Income resulting in the reclassification of $20 million of stranded tax expense from AOCI to retained earnings. Accumulated Other Comprehensive Income (Loss), Net of Tax Cumulative Translation Adjustment Benefit Plans Unrecognized Prior Service Credits Unrealized Gains (Losses) on Derivative Instruments Unrealized Losses on Investments Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2018 $ (309) $ 106 $ (41) $ (1) $ (245) Period change (1) 45 — (14) — 31 Balance at December 31, 2019 (264) 106 (55) (1) (214) Period change 19 (7) 5 — 17 Balance at March 31, 2020 $ (245) $ 99 $ (50) $ (1) $ (197) (1) Benefit plans unrecognized prior service credits includes $29 million reclassification of stranded tax expense from AOCI to retained earnings and unrealized gains (losses) on derivative instruments includes $9 million reclassification of stranded tax benefit from AOCI to retained earnings. Amounts of other comprehensive income (loss) are presented net of applicable taxes. Eastman recognizes deferred income taxes on the CTA related to branch operations and income from other entities included in the Company's consolidated U.S. tax return. No deferred income taxes are recognized on the CTA of other subsidiaries outside the United States, because the CTA is considered to be a component of indefinitely invested, unremitted earnings of these foreign subsidiaries. Components of other comprehensive income recognized in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings are presented below, before tax and net of tax effects: First Quarter 2020 2019 (Dollars in millions) Before Tax Net of Tax Before Tax Net of Tax Other comprehensive income (loss) Change in cumulative translation adjustment $ 19 $ 19 $ 30 $ 30 Defined benefit pension and other postretirement benefit plans: Amortization of unrecognized prior service credits (10) (7) (10) (7) Derivatives and hedging: Unrealized gain (loss) during period 10 7 13 10 Reclassification adjustment for (gains) losses included in net income, net (3) (2) (3) (2) Total other comprehensive income (loss) $ 16 $ 17 $ 30 $ 31

EARNINGS AND DIVIDENDS PER SHAR

EARNINGS AND DIVIDENDS PER SHARE	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
EARNINGS AND DIVIDENDS PER SHARE	EARNINGS AND DIVIDENDS PER SHARE The following table sets forth the computation of basic and diluted earnings per share ("EPS") which are calculated using the treasury stock method: First Quarter (In millions, except per share amounts) 2020 2019 Numerator Earnings attributable to Eastman, net of tax $ 258 $ 209 Denominator Weighted average shares used for basic EPS 136.0 139.0 Dilutive effect of stock options and other awards 0.5 1.1 Weighted average shares used for diluted EPS 136.5 140.1 (Calculated using whole dollars and shares) EPS Basic $ 1.90 $ 1.50 Diluted $ 1.89 $ 1.49 Shares underlying stock options excluded from first quarter 2020 and 2019 calculations of diluted EPS were 3,921,686 and 2,261,873, respectively, because the grant price of these options was greater than the average market price of the Company's common stock and the effect of including them in the calculation of diluted EPS would have been antidilutive. First quarter 2020 and 2019 reflects share repurchases of 510,301 and 1,582,076, respectively. The Company declared cash dividends of $0.66 and $0.62 per share in first quarter 2020 and 2019, respectively.

ASSETS IMPAIRMENTS AND RESTRUCT

ASSETS IMPAIRMENTS AND RESTRUCTURING	3 Months Ended
	Mar. 31, 2020
Restructuring Costs and Asset Impairment Charges [Abstract]
ASSET IMPAIRMENTS AND RESTRUCTURING	ASSET IMPAIRMENTS AND RESTRUCTURING CHARGES, NET First Quarter (Dollars in millions) 2020 2019 Fixed asset impairments $ 7 $ — Intangible asset impairments 2 — Severance charges 5 28 Other restructuring costs — 4 Total $ 14 $ 32 First quarter 2020 asset impairments and restructuring charges consisted of fixed asset impairment charges of $4 million and severance charges of $3 million in the Advanced Materials segment resulting from the closure of a manufacturing facility in North America and fixed asset impairment charges of $3 million and severance charges of $1 million in the Additives and Functional Products ("AFP") segment for a manufacturing facility in Asia Pacific, each part of ongoing site optimization actions. The Company also recognized an intangible asset impairment charge of $2 million in the AFP segment for customer relationships. In the Chemical Intermediates segment, the Company recognized severance charges of $1 million related to the previously disclosed plan to discontinue production of certain products at the Singapore manufacturing site by the end of 2020. First quarter 2019 restructuring charges included $28 million for severance and related costs as part of business improvement and cost reduction initiatives and an additional $4 million restructuring charge related to a capital project in the AFP segment that was discontinued in 2016. Changes in Reserves The following table summarizes the changes in asset impairments and restructuring charges, the non-cash reductions attributable to asset impairments, and the cash reductions in restructuring reserves for severance costs and site closure costs paid in first three months 2020 and full year 2019: (Dollars in millions) Balance at January 1, 2020 Provision/ Adjustments Non-cash Reductions/ Cash Reductions Balance at March 31, 2020 Non-cash charges $ — $ 9 $ (9) $ — $ — Severance costs 17 5 — (5) 17 Other restructuring costs 11 — — (1) 10 Total $ 28 $ 14 $ (9) $ (6) $ 27 Balance at January 1, 2019 Provision/ Adjustments Non-cash Reductions/ Cash Reductions Balance at December 31, 2019 Non-cash charges $ — $ 72 $ (72) $ — $ — Severance costs 6 45 — (34) 17 Other restructuring costs 8 9 1 (7) 11 Total $ 14 $ 126 $ (71) $ (41) $ 28 Substantially all severance costs remaining are expected to be applied to the reserves within one year.

SHARE-BASED COMPENSATION AWARDS

SHARE-BASED COMPENSATION AWARDS	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Share-based Payment Arrangement [Text Block]	SHARE-BASED COMPENSATION AWARDS The Company utilizes share-based awards under employee and non-employee director compensation programs. These share-based awards have included restricted and unrestricted stock, restricted stock units, stock options, and performance shares. In first quarter 2020 and 2019, $15 million and $18 million, respectively, of compensation expense before tax were recognized in "Selling, general and administrative expenses" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings for all share-based awards of which $3 million and $5 million, respectively, was for stock options. The compensation expense is recognized over the substantive vesting period, which may be shorter time period than the stated vesting period for qualifying termination eligible employees as defined in the award notices. For first quarter 2020 and 2019, $1 million and $3 million, respectively, of stock option compensation expense was recognized due to qualifying termination eligibility preceding the requisite service period. The impact on first quarter 2020 and 2019 net earnings of $11 million and $14 million, respectively, is net of deferred tax expense related to share-based award compensation for each period. Stock Option Grants In first quarter 2020 and 2019, the number of stock options granted under the 2017 Omnibus Stock Compensation Plan was approximately 622 thousand and 691 thousand, respectively. Options have an exercise price equal to the closing price of the Company's stock on the date of grant. The term of options is ten years with vesting periods that vary up to three years. Vesting usually occurs ratably over the vesting period or at the end of the vesting period. The Company utilizes the Black Scholes Merton option valuation model which relies on certain assumptions to estimate an option's fair value. The assumptions used in the determination of fair value for stock options granted in first quarter 2020 and 2019 are provided in the table below: First Quarter Assumptions 2020 2019 Expected volatility rate 21.56% 19.61% Expected dividend yield 3.30% 2.41% Average risk-free interest rate 0.94% 2.56% Expected term years 5.9 5.7 The grant date exercise price and fair value of options granted during first quarter 2020 were $61.51 and $7.92, respectively, and first quarter 2019 were $82.69 and $13.60, respectively. For options unvested at March 31, 2020, $6 million in compensation expense will be recognized over the next three years. Other Share-Based Compensation Awards In addition to stock option grants, the Company has awarded long-term performance shares, restricted stock and restricted stock units, and stock appreciation rights. The long-term performance share awards are based upon actual return on capital compared to a target return on capital and total stockholder return compared to a peer group ranking by total stockholder return over a three year performance period and pay out in unrestricted shares of common stock at the end of the performance period. The awards are valued using a Monte Carlo Simulation based model and vest pro-ratably over the three year performance period. The number of long-term performance share target awards during first quarter 2020 and 2019 for the 2020-2022 and 2019-2021 periods were approximately 423 thousand and 412 thousand, respectively. The target shares awarded are assumed to be 100 percent. At the end of the three-year performance period, the actual number of shares awarded can range from zero to 250 percent of the target shares based on the award notice. The number of restricted stock unit awards, which pay out in unrestricted shares of common stock at the end of the vesting and performance (if any) period, during first quarter 2020 and 2019 were approximately 123 thousand and 116 thousand, respectively. The fair value of a restricted stock unit award is equal to the closing stock price of the Company's stock on the award date and normally vests over a period of three years. In first quarter 2020 and 2019, $12 million and $13 million, respectively, was recognized as compensation expense before tax for these other share-based awards and was included in the total compensation expense noted above for all share-based awards. The unrecognized compensation expense before tax for these same type awards at March 31, 2020 was approximately $90 million and will be recognized primarily over a period of three years. For additional information regarding share-based compensation plans and awards, see Note 17, "Share-Based Compensation Plans and Awards", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K .

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	3 Months Ended
	Mar. 31, 2020
Supplemental Cash Flow Information [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Included in the line item "Other items, net" of the "Operating activities" section of the Unaudited Consolidated Statements of Cash Flows are the following changes to Unaudited Consolidated Statements of Financial Position: (Dollars in millions) First Three Months 2020 2019 Other current assets $ 7 $ 2 Other noncurrent assets 9 6 Payables and other current liabilities 58 59 Long-term liabilities and equity (3) (14) Total $ 71 $ 53 The above changes resulted primarily from accrued taxes, deferred taxes, environmental liabilities, monetized positions from raw material and energy, currency, and certain interest rate hedges, prepaid insurance, miscellaneous deferrals, value-added taxes, and other miscellaneous receivables and accruals.

SEGMENT AND REGIONAL SALES INFO

SEGMENT AND REGIONAL SALES INFORMATION	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT AND REGIONAL SALES INFORMATION Eastman's products and operations are managed and reported in four operating segments: Additives & Functional Products ("AFP"), Advanced Materials ("AM"), Chemical Intermediates ("CI"), and Fibers. The economic factors that impact the nature, amount, timing, and uncertainty of revenue and cash flows vary between the Company's business operating segments and the geographical regions in which they serve. For disaggregation of revenue by major product lines and regions for each business operating segment, see Note 19, "Segment and Regional Sales Information", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K . For additional financial information for each segment, see Part I, Item 1, "Business - Business Segments", in the Company's 2019 Annual Report on Form 10-K . (Dollars in millions) First Quarter Sales by Segment 2020 2019 Additives & Functional Products $ 822 $ 855 Advanced Materials 615 657 Chemical Intermediates 592 655 Fibers 212 213 Total Sales $ 2,241 $ 2,380 (Dollars in millions) First Quarter Earnings Before Interest and Taxes by Segment 2020 2019 Additives & Functional Products $ 143 $ 146 Advanced Materials 100 102 Chemical Intermediates 80 73 Fibers 53 42 Total Earnings Before Interest and Taxes by Operating Segment 376 363 Other Growth initiatives and businesses not allocated to operating segments (23) (27) Pension and other postretirement benefits income (expense), net not allocated to operating segments 21 12 Asset impairments and restructuring charges, net — (28) Other income (charges), net not allocated to operating segments (6) — Total Earnings Before Interest and Taxes $ 368 $ 320 (Dollars in millions) March 31, December 31, Assets by Segment (1) 2020 2019 Additives & Functional Products $ 6,375 $ 6,387 Advanced Materials 4,429 4,415 Chemical Intermediates 2,703 2,775 Fibers 1,020 1,014 Total Assets by Operating Segment 14,527 14,591 Corporate Assets 1,938 1,417 Total Assets $ 16,465 $ 16,008 (1) Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets. (Dollars in millions) First Quarter Sales by Customer Location 2020 2019 United States and Canada $ 980 $ 1,000 Asia Pacific 495 553 Europe, Middle East, and Africa 631 689 Latin America 135 138 Total Sales $ 2,241 $ 2,380

SIGNIFICANT ACCOUNTING POLICI_2

SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2020
Basis of Presentation [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared by Eastman Chemical Company ("Eastman" or the "Company") in accordance and consistent with the accounting policies stated in the Company's 2019 Annual Report on Form 10-K , and should be read in conjunction with the consolidated financial statements in Part II, Item 8 of that report, with the exception of the items noted below. The December 31, 2019 financial position data included herein was derived from the audited consolidated financial statements included in the 2019 Annual Report on Form 10-K but does not include all disclosures required by accounting principles generally accepted in the United States ("GAAP").
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards Accounting Standards Update ("ASU") 2016-13 Financial Instruments - Credit Losses: On January 1, 2020, Eastman adopted this standard, and related releases, under the various required transition methods. The amendments require a financial asset (including trade receivables) to be presented at the net amount expected to be collected through the use of allowances for credit losses valuation account. The income statement will reflect the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. The adoption of this standard did not result in a material impact on the Company's financial statements and related disclosures. ASU 2018-13 Fair Value Measurement - Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement: On January 1, 2020, Eastman adopted this standard that is a part of the Financial Accounting Standards Board's ("FASB") disclosure framework project to improve the effectiveness of disclosures in the notes to financial statements. The primary changes applicable to Eastman in this update are the disclosures of fair value levels, assessment thereof, and transfers between those levels. The adoption under the various required transition methods did not impact the Company's related disclosures. ASU 2018-18 Collaborative Arrangements - Clarifying the Interaction between Topic 808 (Collaborative Arrangements) and Topic 606 (Revenue from Contracts with Customers): On January 1, 2020, Eastman adopted this standard, retrospectively to the date of the initial application of Topic 606 on January 1, 2017, that provides clarification in regards to which contracts are accounted for under Topic 808 and Topic 606 as well as alignment of guidance between the two pronouncements. The adoption of this standard did not impact the Company's financial statements and related disclosures. ASU 2019-01 Leases - Codification Improvements: On January 1, 2020, Eastman adopted this standard which was applied as of the adoption date and under the same transition methodology of ASU 2016-02 Lease previously adopted on January 1, 2019. The FASB issued this update in response to stakeholder inquiries regarding the new leasing standard. The adoption of this standard did not impact the Company's financial statements and related disclosures. ASU 2020-04 Reference Rate Reform (Topic 848) - Facilitation of the Effects of Reference Rate Reform on Financial Reporting : Eastman adopted this standard when issued and effective on March 12, 2020. The FASB issued this update to provide optional guidance for a limited period of time to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform (the global financial markets transition in contracts, hedging relationships, and other transactions away from referencing the London Interbank Offered Rate (LIBOR) and other interbank offered rates and toward new reference rates) on financial reporting. As reference reform has not impacted Eastman as of the issuance and effective date, the adoption of this standard did not impact the Company's financial statements and related disclosures. Accounting Standards Issued But Not Adopted as of March 31, 2020 ASU 2018-14 Retirement Benefits - Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans: In August 2018, the FASB issued this update as a part of its disclosure framework project to improve the effectiveness of disclosures in the notes to financial statements. The primary change impacting Eastman is the addition of disclosures related to significant gains and losses related to changes in the benefit obligation for the period and weighted-average interest crediting rates for cash balance plans. This standard is effective for fiscal years ending after December 15, 2020 and early adoption is permitted. Upon adoption, this update is to be applied on a retrospective basis to all periods presented. Management does not expect that changes required by the new standard will materially impact the Company's related disclosures. ASU 2019-12 Income Taxes - Simplifying the Accounting for Income Taxes : In December 2019, the FASB issued this update as part of its initiative to reduce complexity in accounting standards which removes certain exceptions and provides simplification to specific tax items. This standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption is permitted, including adoption in any interim period for which financial statements have not yet been issued. Adoption methods vary based on the specific items impacted. Management is currently evaluating the impact on the Company's financial statements and related disclosures.
Off-Balance-Sheet Credit Exposure, Policy	Working Capital Management and Off Balance Sheet Arrangements In 2019, the Company expanded its off balance sheet, uncommitted accounts receivable factoring program under which entire invoices may be sold, without recourse, to third-party financial institutions. Under these agreements, the Company sells the invoices at face value, less a transaction fee, which substantially equals the carrying value and fair value with no gain or loss recognized and no credit loss exposure is retained. Available capacity under these agreements, which the Company uses as a source of working capital funding, is dependent on the level of accounts receivable eligible to be sold and the financial institutions' willingness to purchase such receivables. In addition, certain agreements also require that the Company continue to service, administer, and collect the sold accounts receivable at market rates. The total amount of receivables sold in first quarter 2020 and 2019 were $457 million and $101 million, respectively. The Company works with suppliers to optimize payment terms and conditions on accounts payable to enhance timing of working capital and cash flows. As part of these efforts, in 2019, the Company introduced a voluntary supply chain finance program to provide suppliers with the opportunity to sell receivables due from Eastman to a participating financial institution. Eastman's responsibility is limited to making payments on the terms originally negotiated with suppliers, regardless of whether the suppliers sells their receivables to the financial institution. The range of payment terms Eastman negotiates with suppliers are consistent, regardless of whether a supplier participates in the program. All of Eastman's accounts payable and associated payments are reported consistently in the Company's Consolidated Statements of Financial Position and Consolidated Statements of Cash Flows regardless of whether they are associated with a vendor who participates in the program.

INVENTORIES (Tables)

INVENTORIES (Tables)	3 Months Ended
	Mar. 31, 2020
Inventory Disclosure [Abstract]
Schedule of inventories	March 31, December 31, (Dollars in millions) 2020 2019 Finished goods $ 1,138 $ 1,114 Work in process 221 220 Raw materials and supplies 548 576 Total inventories at FIFO or average cost 1,907 1,910 Less: LIFO reserve 248 248 Total inventories $ 1,659 $ 1,662

PAYABLES AND OTHER CURRENT LI_2

PAYABLES AND OTHER CURRENT LIABILITIES (Tables)	3 Months Ended
	Mar. 31, 2020
Payables and Accruals [Abstract]
Schedule of payables and other current liabilities	March 31, December 31, (Dollars in millions) 2020 2019 Trade creditors $ 770 $ 890 Accrued payroll and variable compensation 127 176 Accrued taxes 79 89 Post-employment obligations 84 93 Dividends payable to shareholders 90 90 Other 270 280 Total payables and other current liabilities $ 1,420 $ 1,618

INCOME TAXES (Tables)

INCOME TAXES (Tables)	3 Months Ended
	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	First Quarter (Dollars in millions) 2020 2019 $ % $ % Provision for income taxes and tax rate $ 56 18 % $ 55 21 %

BORROWINGS (Tables)

BORROWINGS (Tables)	3 Months Ended
	Mar. 31, 2020
Debt Disclosure [Abstract]
Long-term Borrowings	March 31, December 31, (Dollars in millions) 2020 2019 Borrowings consisted of: 4.5% notes due January 2021 $ 185 $ 185 3.5% notes due December 2021 298 298 3.6% notes due August 2022 741 741 1.50% notes due May 2023 (1) 821 840 7 1/4% debentures due January 2024 198 198 7 5/8% debentures due June 2024 43 43 3.8% notes due March 2025 700 695 1.875% notes due November 2026 (1) 543 556 7.60% debentures due February 2027 195 195 4.5% notes due December 2028 493 493 4.8% notes due September 2042 493 493 4.65% notes due October 2044 874 874 Commercial paper and short-term borrowings 310 171 Credit facilities borrowings 400 — Total borrowings 6,294 5,782 Borrowings due within one year 895 171 Long-term borrowings $ 5,399 $ 5,611

DERIVATIVE AND NON-DERIVATIVE_2

DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	3 Months Ended
	Mar. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Cumulative basis adjustments for fair value hedges on balance sheet [Table Text Block]	As of March 31, 2020 and December 31, 2019, the following amounts were included on the Unaudited Consolidated Statements of Financial Position related to cumulative basis adjustments for fair value hedges. (Dollars in millions) Carrying amount of the hedged liabilities Cumulative amount of fair value hedging loss adjustment included in the carrying amount of the hedged liability Line item in the Unaudited Consolidated Statements of Financial Position in which the hedged item is included March 31, 2020 December 31, 2019 March 31, December 31, 2019 Long-term borrowings (1) $ 770 $ 763 $ (2) $ (7) (1) At March 31, 2020 and December 31, 2019, the cumulative amount of fair value hedging loss adjustment remaining for hedged liabilities for which hedge accounting has been discontinued was $6 million and $7 million, respectively.
Derivative Instruments, Gain (Loss) [Table Text Block]	The following table presents the effect of fair value and cash flow hedge accounting on the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings for first quarter 2020 and 2019. Location and Amount of Gain or (Loss) Recognized in Earnings on Fair Value and Cash Flow Hedging Relationships First Quarter 2020 2019 (Dollars in millions) Sales Cost of Sales Net Interest Expense Sales Cost of Sales Net Interest Expense Total amounts of income and expense line items presented in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings in which the effects of fair value or cash flow hedges are recognized $ 2,241 $ 1,664 $ 52 $ 2,380 $ 1,806 $ 56 The effects of fair value and cash flow hedging: Gain or (loss) on cash flow hedging relationships: Interest contracts (forward starting interest rate and treasury lock swap contracts): Amount reclassified from AOCI into earnings (2) (1) Commodity Contracts: Amount reclassified from AOCI into earnings (1) (3) Foreign Exchange Contracts: Amount reclassified from AOCI into earnings 6 6
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	The following table presents the notional amounts outstanding at March 31, 2020 and December 31, 2019 associated with Eastman's hedging programs. Notional Outstanding March 31, 2020 December 31, 2019 Derivatives designated as cash flow hedges: Foreign Exchange Forward and Option Contracts (in millions) EUR/USD (in EUR) €585 €630 Commodity Forward and Collar Contracts Feedstock (in million barrels) 1 1 Energy (in million british thermal units) 21 27 Interest rate swaps for the future issuance of debt (in millions) $25 — Derivatives designated as fair value hedges: Fixed-for-floating interest rate swaps (in millions) $75 $75 Derivatives designated as net investment hedges: Cross-currency interest rate swaps (in millions) EUR/USD (in EUR) €851 €851 Non-derivatives designated as net investment hedges: Foreign Currency Net Investment Hedges (in millions) EUR/USD (in EUR) €1,243 €1,243
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)	The following table presents the effect of the Company's hedging instruments on "Other comprehensive income (loss), net of tax" ("OCI") and financial performance for first quarter 2020 and 2019. Change in amount of after tax gain (loss) recognized in OCI on derivatives Pre-tax amount of gain (loss) reclassified from OCI into earnings (Dollars in millions) First Quarter First Quarter Hedging Relationships 2020 2019 2020 2019 Derivatives in cash flow hedging relationships: Commodity contracts $ (9) $ 7 $ (1) $ (3) Foreign exchange contracts 13 1 6 6 Forward starting interest rate and treasury lock swap contracts 1 1 (2) (1) Non-derivatives in net investment hedging relationships (pre-tax): Net investment hedges 33 26 — — Derivatives in net investment hedging relationships (pre-tax): Cross-currency interest rate swaps 18 19 — — Cross-currency interest rate swaps excluded component 41 6 — —
Financial assets and liabilities valued on a recurring basis	The following table presents the financial assets and liabilities valued on a recurring and gross basis and includes where the financial assets and liabilities are located within the Unaudited Consolidated Statements of Financial Position as of March 31, 2020 and December 31, 2019. The Financial Position and Fair Value Measurements of Hedging Instruments on a Gross Basis (Dollars in millions) Derivative Type Statements of Financial March 31, 2020 December 31, 2019 Derivatives designated as cash flow hedges: Foreign exchange contracts Other current assets $ 18 $ 13 Foreign exchange contracts Other noncurrent assets 11 2 Derivatives designated as fair value hedges: Fixed-for-floating interest rate swap Other noncurrent assets 4 1 Derivatives designated as net investment hedges: Cross-currency interest rate swaps Other current assets 17 — Cross-currency interest rate swaps Other noncurrent assets 110 68 Total Derivative Assets $ 160 $ 84 Derivatives designated as cash flow hedges: Commodity contracts Payables and other current liabilities $ 22 $ 26 Commodity contracts Other long-term liabilities 1 2 Foreign exchange contracts Payables and other current liabilities — 1 Foreign exchange contracts Other long-term liabilities — 2 Forward starting interest rate swap contracts Other long-term liabilities 1 — Derivatives designated as fair value hedges: Fixed-for-floating interest rate swap Long-term borrowings — 1 Total Derivative Liabilities $ 24 $ 32 Total Net Derivative Assets (Liabilities) $ 136 $ 52

RETIREMENT PLANS (Tables)

RETIREMENT PLANS (Tables)	3 Months Ended
	Mar. 31, 2020
Retirement Benefits [Abstract]
Components of net periodic benefit cost	Components of net periodic benefit (credit) cost were as follows: First Quarter Pension Plans Other Postretirement Benefit Plans 2020 2019 2020 2019 (Dollars in millions) U.S. Non-U.S. U.S. Non-U.S. Service cost $ 7 $ 4 $ 7 $ 3 $ — $ — Interest cost 14 4 19 5 5 6 Expected return on assets (34) (8) (32) (8) (1) (1) Amortization of: Prior service credit, net — — — — (10) (10) Net periodic benefit (credit) cost $ (13) $ — $ (6) $ — $ (6) $ (5)

LEASES AND OTHER COMMITMENTS (T

LEASES AND OTHER COMMITMENTS (Tables)	3 Months Ended
	Mar. 31, 2020
Leases [Abstract]
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	As of March 31, 2020, reconciliation of lease payments and operating lease liabilities is provided below: (Dollars in millions) Operating lease liabilities Remainder of 2020 $ 47 2021 51 2022 40 2023 27 2024 16 2025 and beyond 33 Total lease payments 214 Less: amounts of lease payments representing interest 28 Present value of future lease payments 186 Less: current obligations under leases 41 Long-term lease obligations $ 145
Lease, Cost [Table Text Block]	Lease costs during the period and other information is provided below: First Quarter (Dollars in millions) 2020 2019 Lease costs: Operating lease costs $ 19 $ 15 Short-term lease costs 9 11 Sublease income (1) — Total $ 27 $ 26 Other operating lease information: Cash paid for amounts included in the measurement of lease liabilities $ 18 $ 17 Right-to-use assets obtained in exchange for new lease liabilities $ 16 $ 11 Weighted-average remaining lease term, in years 5 5 Weighted-average discount rate 3.9 % 4.2 %
Other Commitments	Eastman's obligations are summarized in the following table. (Dollars in millions) Payments Due for Period Debt Securities Credit Facilities and Other Interest Payable Purchase Obligations Operating Leases Other Liabilities Total 2020 $ — $ 710 $ 154 $ 131 $ 47 $ 144 $ 1,186 2021 483 — 185 151 51 74 944 2022 741 — 173 100 40 83 1,137 2023 821 — 153 89 27 88 1,178 2024 241 — 136 98 16 89 580 2025 and beyond 3,298 — 1,413 1,958 33 1,111 7,813 Total $ 5,584 $ 710 $ 2,214 $ 2,527 $ 214 $ 1,589 $ 12,838

ENVIRONMENTAL MATTERS AND ASS_2

ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Tables)	3 Months Ended
	Mar. 31, 2020
Accrual for Environmental Loss Contingencies Disclosure [Abstract]
Schedule of environmental liabilities, current and non-current	(Dollars in millions) March 31, 2020 December 31, 2019 Environmental contingent liabilities, current $ 20 $ 20 Environmental contingent liabilities, long-term 265 267 Total $ 285 $ 287
Schedule of changes to environmental remediation liabilities	Changes in the reserves for environmental remediation liabilities during first three months 2020 and full year 2019 are summarized below: (Dollars in millions) Environmental Remediation Liabilities Balance at December 31, 2018 $ 271 Changes in estimates recognized in earnings and other 4 Cash reductions (15) Balance at December 31, 2019 260 Changes in estimates recognized in earnings and other 2 Cash reductions (4) Balance at March 31, 2020 $ 258

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	3 Months Ended
	Mar. 31, 2020
Stockholders' Equity Note [Abstract]
Reconciliation of the changes in stockholders' equity	Reconciliations of the changes in stockholders' equity for first quarter 2020 and 2019 are provided below: (Dollars in millions, except per share amount) Common Stock at Par Value Additional Paid-in Capital Retained Earnings Accumulated Other Comprehensive Income (Loss) Treasury Stock at Cost Total Eastman Stockholders' Equity Noncontrolling Interest Total Equity Balance at December 31, 2019 $ 2 $ 2,105 $ 7,965 $ (214) $ (3,900) $ 5,958 $ 74 $ 6,032 Net Earnings — — 258 — — 258 2 260 Cash Dividends Declared (1) ($0.66 per share) — — (90) — — (90) — (90) Other Comprehensive Income (Loss) — — — 17 — 17 — 17 Share Based Compensation Expense (2) — 15 — — — 15 — 15 Other (3) — (11) — — — (11) (1) (12) Share Repurchase — — — — (30) (30) — (30) Balance at March 31, 2020 $ 2 $ 2,109 $ 8,133 $ (197) $ (3,930) $ 6,117 $ 75 $ 6,192 (Dollars in millions, except per share amount) Common Stock at Par Value Additional Paid-in Capital Retained Earnings Accumulated Other Comprehensive Income (Loss) Treasury Stock at Cost Total Eastman Stockholders' Equity Noncontrolling Interest Total Equity Balance at December 31, 2018 $ 2 $ 2,048 $ 7,573 $ (245) $ (3,575) $ 5,803 $ 75 $ 5,878 Cumulative Effect of Adoption of New Accounting Standards (4) — — (20) 20 — — — — Net Earnings — — 209 — — 209 — 209 Cash Dividends Declared (1) ($0.62 per share) — — (87) — — (87) — (87) Other Comprehensive Income (Loss) — — — 31 — 31 — 31 Share Based Compensation Expense (2) — 18 — — — 18 — 18 Stock Option Exercises — 4 — — — 4 — 4 Other (3) — (10) — — — (10) 1 (9) Share Repurchase — — — — (125) (125) — (125) Balance at March 31, 2019 $ 2 $ 2,060 $ 7,675 $ (194) $ (3,700) $ 5,843 $ 76 $ 5,919 (1) Cash dividends declared consists of cash dividends paid and dividends declared but unpaid. (2) Share-based compensation expense is the fair value of share-based awards. (3) Additional paid-in capital consists of value of shares withheld for employees' taxes on vesting of share-based compensation awards. (4) On January 1, 2019, Eastman adopted ASU 2018-02 Income Statement - Reporting Comprehensive Income resulting in the reclassification of $20 million of stranded tax expense from AOCI to retained earnings.
Accumulated Other Comprehensive Income (Loss)	Cumulative Translation Adjustment Benefit Plans Unrecognized Prior Service Credits Unrealized Gains (Losses) on Derivative Instruments Unrealized Losses on Investments Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2018 $ (309) $ 106 $ (41) $ (1) $ (245) Period change (1) 45 — (14) — 31 Balance at December 31, 2019 (264) 106 (55) (1) (214) Period change 19 (7) 5 — 17 Balance at March 31, 2020 $ (245) $ 99 $ (50) $ (1) $ (197) (1) Benefit plans unrecognized prior service credits includes $29 million reclassification of stranded tax expense from AOCI to retained earnings and unrealized gains (losses) on derivative instruments includes $9 million reclassification of stranded tax benefit from AOCI to retained earnings.
Schedule of components of comprehensive income (loss) before tax and net of tax effects	Components of other comprehensive income recognized in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings are presented below, before tax and net of tax effects: First Quarter 2020 2019 (Dollars in millions) Before Tax Net of Tax Before Tax Net of Tax Other comprehensive income (loss) Change in cumulative translation adjustment $ 19 $ 19 $ 30 $ 30 Defined benefit pension and other postretirement benefit plans: Amortization of unrecognized prior service credits (10) (7) (10) (7) Derivatives and hedging: Unrealized gain (loss) during period 10 7 13 10 Reclassification adjustment for (gains) losses included in net income, net (3) (2) (3) (2) Total other comprehensive income (loss) $ 16 $ 17 $ 30 $ 31

EARNINGS AND DIVIDENDS PER SH_2

EARNINGS AND DIVIDENDS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2020
Earnings Per Share [Abstract]
Earnings per share, basic and diluted	The following table sets forth the computation of basic and diluted earnings per share ("EPS") which are calculated using the treasury stock method: First Quarter (In millions, except per share amounts) 2020 2019 Numerator Earnings attributable to Eastman, net of tax $ 258 $ 209 Denominator Weighted average shares used for basic EPS 136.0 139.0 Dilutive effect of stock options and other awards 0.5 1.1 Weighted average shares used for diluted EPS 136.5 140.1 (Calculated using whole dollars and shares) EPS Basic $ 1.90 $ 1.50 Diluted $ 1.89 $ 1.49

ASSETS IMPAIRMENTS AND RESTRU_2

ASSETS IMPAIRMENTS AND RESTRUCTURING (Tables)	3 Months Ended
	Mar. 31, 2020
Restructuring Costs and Asset Impairment Charges [Abstract]
Restructuring and Related Costs [Table Text Block]	First Quarter (Dollars in millions) 2020 2019 Fixed asset impairments $ 7 $ — Intangible asset impairments 2 — Severance charges 5 28 Other restructuring costs — 4 Total $ 14 $ 32
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in asset impairments and restructuring charges, the non-cash reductions attributable to asset impairments, and the cash reductions in restructuring reserves for severance costs and site closure costs paid in first three months 2020 and full year 2019: (Dollars in millions) Balance at January 1, 2020 Provision/ Adjustments Non-cash Reductions/ Cash Reductions Balance at March 31, 2020 Non-cash charges $ — $ 9 $ (9) $ — $ — Severance costs 17 5 — (5) 17 Other restructuring costs 11 — — (1) 10 Total $ 28 $ 14 $ (9) $ (6) $ 27 Balance at January 1, 2019 Provision/ Adjustments Non-cash Reductions/ Cash Reductions Balance at December 31, 2019 Non-cash charges $ — $ 72 $ (72) $ — $ — Severance costs 6 45 — (34) 17 Other restructuring costs 8 9 1 (7) 11 Total $ 14 $ 126 $ (71) $ (41) $ 28

SHARE-BASED COMPENSATION AWAR_2

SHARE-BASED COMPENSATION AWARDS SHARE-BASED COMPENSATION AWARDS (Tables)	3 Months Ended
	Mar. 31, 2020
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	The assumptions used in the determination of fair value for stock options granted in first quarter 2020 and 2019 are provided in the table below: First Quarter Assumptions 2020 2019 Expected volatility rate 21.56% 19.61% Expected dividend yield 3.30% 2.41% Average risk-free interest rate 0.94% 2.56% Expected term years 5.9 5.7

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2020
Supplemental Cash Flow Information [Abstract]
Schedule of Cash Flow, Supplemental Disclosures	Included in the line item "Other items, net" of the "Operating activities" section of the Unaudited Consolidated Statements of Cash Flows are the following changes to Unaudited Consolidated Statements of Financial Position: (Dollars in millions) First Three Months 2020 2019 Other current assets $ 7 $ 2 Other noncurrent assets 9 6 Payables and other current liabilities 58 59 Long-term liabilities and equity (3) (14) Total $ 71 $ 53

SEGMENT AND REGIONAL SALES IN_2

SEGMENT AND REGIONAL SALES INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2020
Segment Reporting [Abstract]
Segment Information Disclosure	(Dollars in millions) First Quarter Sales by Segment 2020 2019 Additives & Functional Products $ 822 $ 855 Advanced Materials 615 657 Chemical Intermediates 592 655 Fibers 212 213 Total Sales $ 2,241 $ 2,380 (Dollars in millions) First Quarter Earnings Before Interest and Taxes by Segment 2020 2019 Additives & Functional Products $ 143 $ 146 Advanced Materials 100 102 Chemical Intermediates 80 73 Fibers 53 42 Total Earnings Before Interest and Taxes by Operating Segment 376 363 Other Growth initiatives and businesses not allocated to operating segments (23) (27) Pension and other postretirement benefits income (expense), net not allocated to operating segments 21 12 Asset impairments and restructuring charges, net — (28) Other income (charges), net not allocated to operating segments (6) — Total Earnings Before Interest and Taxes $ 368 $ 320 (Dollars in millions) March 31, December 31, Assets by Segment (1) 2020 2019 Additives & Functional Products $ 6,375 $ 6,387 Advanced Materials 4,429 4,415 Chemical Intermediates 2,703 2,775 Fibers 1,020 1,014 Total Assets by Operating Segment 14,527 14,591 Corporate Assets 1,938 1,417 Total Assets $ 16,465 $ 16,008 (1) Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets. (Dollars in millions) First Quarter Sales by Customer Location 2020 2019 United States and Canada $ 980 $ 1,000 Asia Pacific 495 553 Europe, Middle East, and Africa 631 689 Latin America 135 138 Total Sales $ 2,241 $ 2,380

SIGNIFICANT ACCOUNTING POLICI_3

SIGNIFICANT ACCOUNTING POLICIES Recently Issued Accounting Standards (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivable Sold Under Factoring Arrangement	$ 457	$ 101

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
At FIFO or average cost (approximates current cost) [Abstract]
Finished goods	$ 1,138	$ 1,114
Work in process	221	220
Raw materials and supplies	548	576
Total inventories at FIFO or average cost	1,907	1,910
Less: LIFO reserve	248	248
Total inventories	$ 1,659	$ 1,662
Inventories valued on the LIFO method	50.00%	50.00%

PAYABLES AND OTHER CURRENT LI_3

PAYABLES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Trade creditors	$ 770	$ 890
Accrued payroll and variable compensation	127	176
Accrued taxes	79	89
Post-employment obligations	84	93
Dividends payable to shareholders	90	90
Other	270	280
Total payables and other current liabilities	$ 1,420	$ 1,618

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Examination [Line Items]
Provision for income taxes	$ 56	$ 55
Effective Income Tax Rate Reconciliation, Percent	18.00%	21.00%
Unrecognized Tax Benefits	$ 202
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 28

BORROWINGS Part 1 (Details) Sch

BORROWINGS Part 1 (Details) Schedule of Long-term Debt Instruments - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total Borrowings		$ 6,294	$ 5,782
Borrowings due within one year		895	171
Long-term borrowings		5,399	5,611
4.5% notes due January 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 185	185
Debt Instrument, Interest Rate, Stated Percentage		4.50%
Debt Instrument, Maturity Date		Jan. 31, 2021
3.5% Notes Due Dec 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 298	298
Debt Instrument, Interest Rate, Stated Percentage		3.50%
Debt Instrument, Maturity Date		Dec. 31, 2021
3.6% notes due August 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 741	741
Debt Instrument, Interest Rate, Stated Percentage		3.60%
Debt Instrument, Maturity Date		Aug. 31, 2022
1.5% notes due May 2023 [Member]
Debt Instrument [Line Items]
Long-term Debt	[1]	$ 821	840
Debt Instrument, Interest Rate, Stated Percentage		1.50%
Debt Instrument, Maturity Date		May 31, 2023
7 1/4% debentures due January 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 198	198
Debt Instrument, Interest Rate, Stated Percentage		7.25%
Debt Instrument, Maturity Date		Jan. 31, 2024
7 5/8% debentures due June 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 43	43
Debt Instrument, Interest Rate, Stated Percentage		7.625%
Debt Instrument, Maturity Date		Jun. 30, 2024
3.8% notes due March 2025 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 700	695
Debt Instrument, Interest Rate, Stated Percentage		3.80%
Debt Instrument, Maturity Date		Mar. 31, 2025
1.875% notes due November 2026 [Member]
Debt Instrument [Line Items]
Long-term Debt	[1]	$ 543	556
Debt Instrument, Interest Rate, Stated Percentage		1.88%
Debt Instrument, Maturity Date		Nov. 30, 2026
7.60% debentures due February 2027 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 195	195
Debt Instrument, Interest Rate, Stated Percentage		7.60%
Debt Instrument, Maturity Date		Feb. 28, 2027
4.5% Notes Due Dec 2028 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 493	493
Debt Instrument, Interest Rate, Stated Percentage		4.50%
Debt Instrument, Maturity Date		Dec. 31, 2028
4.8% notes due September 2042 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 493	493
Debt Instrument, Interest Rate, Stated Percentage		4.80%
Debt Instrument, Maturity Date		Sep. 30, 2042
4.65% notes due October 2044 [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 874	874
Debt Instrument, Interest Rate, Stated Percentage		4.65%
Debt Instrument, Maturity Date		Oct. 31, 2044
Commercial paper and short-term borrowings [Member]
Debt Instrument [Line Items]
Borrowings due within one year		$ 310	171
Credit Facility
Debt Instrument [Line Items]
Long-term Debt		$ 400	$ 0
[1]	The carrying value of the euro-denominated 1.50% notes due May 2023 and 1.875% notes due November 2026 will fluctuate with changes in the euro exchange rate. The carrying value of these euro-denominated borrowings have been designated as non-derivative net investment hedges of a portion of the Company's net investments in euro functional-currency denominated subsidiaries to offset foreign currency fluctuations.

BORROWINGS Part 2 (Details) Cre

BORROWINGS Part 2 (Details) Credit Facility and Commercial Paper Borrowings - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Credit Facilities [Abstract]
Borrowings due within one year	$ 895	$ 171
Line of Credit Facility, Maximum Month-end Outstanding Amount		0
Line of Credit [Member]
Credit Facilities [Abstract]
Long-term Debt	400	0
Revolving Credit Facility [Member]
Credit Facilities [Abstract]
Line of Credit Facility, Maximum Month-end Outstanding Amount	$ 400	0
Line of Credit Facility, Expiration Date	Oct. 31, 2023
Debt, Weighted Average Interest Rate	2.17%
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500
Commercial Paper [Member]
Credit Facilities [Abstract]
Commercial Paper	$ 310	$ 170
Debt, Weighted Average Interest Rate	3.13%	2.03%
A/R Facility [Member]
Credit Facilities [Abstract]
Credit Facility, Borrowing Capacity	$ 250
Line of Credit Facility, Maximum Month-end Outstanding Amount	0
Proceeds from Lines of Credit	350
Repayments of Lines of Credit	$ 350
Line of Credit Facility, Expiration Date	Apr. 30, 2020

BORROWINGS Part 3 (Details) Fai

BORROWINGS Part 3 (Details) Fair Value - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Jun. 30, 2020	Mar. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Line of Credit Facility, Maximum Month-end Outstanding Amount	$ 0
Borrowings due within one year	171		$ 895
364-Day Term Loan [Member] | Subsequent Event [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Borrowings due within one year		$ 250
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	6,275		6,606
Fair Value, Inputs, Level 3 [Member] | Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Fair Value Disclosure	$ 0		$ 0

DERIVATIVE AND NON-DERIVATIVE_3

DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 1 (Details) - Designated as Hedging Instrument [Member] € in Millions, bbl in Millions, MMBTU in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020EUR (€)MMBTUbbl	Mar. 31, 2020USD ($)	Dec. 31, 2019EUR (€)bblMMBTU	Dec. 31, 2019USD ($)	Mar. 31, 2020USD ($)MMBTUbbl	Dec. 31, 2019USD ($)bblMMBTU
Foreign Exchange Contract [Member] | Euro Member Countries, Euro | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount | €	€ 585		€ 630
Commodity Contract [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bbl	1		1		1	1
Energy Related Derivative [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | MMBTU	21		27		21	27
Interest Rate Contract [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount					$ 25	$ 0
Interest Rate Contract [Member] | Fair Value Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount					75	$ 75
1.50% Notes Due 2023 and 1.875% Notes Due 2026 [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member]
Derivative [Line Items]
Notional Amount of Nonderivative Instruments	€ 1,243	$ 1,400	€ 1,243	$ 1,400
Expected Debt Issuance Aug 2020 [Member] | Interest Rate Contract [Member] | Fair Value Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount					$ 25
Notes Due January 2021, Notes Due August 2022, Notes Due January 2024, Notes Due March 2025, and Notes Due February 2027 [Member] | Cross Currency Interest Rate Contract [Member] | Euro Member Countries, Euro | Net Investment Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount | €	€ 851		€ 851

DERIVATIVE AND NON-DERIVATIVE_4

DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 2 (Details) € in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020EUR (€)	Mar. 31, 2020USD ($)	Dec. 31, 2019EUR (€)	Dec. 31, 2019USD ($)
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Derivative Assets [Abstract]
Derivative Asset, Fair Value, Gross Asset		$ 160		$ 84
Derivative Liabilities [Abstract]
Derivative Liability, Fair Value, Gross Liability		24		32
Derivative, Fair Value, Net		136		52
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Derivative Liabilities [Abstract]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		22		26
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Commodity Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative Liabilities [Abstract]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		1		2
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivative Assets [Abstract]
Cash Flow Hedge Derivative Instrument Assets at Fair Value		18		13
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative Assets [Abstract]
Cash Flow Hedge Derivative Instrument Assets at Fair Value		11		2
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Liabilities [Member]
Derivative Liabilities [Abstract]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		0		1
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative Liabilities [Abstract]
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		0		2
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative Assets [Abstract]
Fair Value Hedge Assets		4		1
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative Liabilities [Abstract]
Fair Value Hedge Liabilities		0		1
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value		1		0
Net Investment Hedging [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivative Assets [Abstract]
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value		17		0
Net Investment Hedging [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member] | Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative Assets [Abstract]
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value		110		68
Net Investment Hedging [Member] | Euro Member Countries, Euro | 1.50% Notes Due 2023 and 1.875% Notes Due 2026 [Member] | Designated as Hedging Instrument [Member]
Non-Derivatives, Carrying Value [Abstract]
Notional Amount of Nonderivative Instruments	€ 1,243	1,400	€ 1,243	1,400
Fair Value Hedging [Member] | Interest Rate Contract [Member]
Derivatives, Fair Value [Line Items]
Hedged Liability, Fair Value Hedge		770		763
Derivative Liabilities [Abstract]
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)		6		7
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)		$ (2)		$ (7)

DERIVATIVE AND NON-DERIVATIVE_5

DERIVATIVE AND NON-DERIVATIVE FINANCIAL INSTRUMENTS Part 3 (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Sales	$ 2,241	$ 2,380
Cost of sales	1,664	1,806
Net interest expense	52	56
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	5		$ (14)
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract]
Change in cumulative translation adjustment, before tax	19	30
Summary of Derivative Instruments [Abstract]
Monetized positions and mark to market in accumulated other comprehensive income before tax	32		(50)
Price Risk Cash Flow Hedge Unrealized Gain to be Reclassified During Next 12 Months	(29)
Commodity Contract [Member] | Cash Flow Hedging [Member]
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(9)	7
Commodity Contract [Member] | Cash Flow Hedging [Member] | Cost of Sales [Member]
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(1)	(3)
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member]
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	13	1
Foreign Exchange Contract [Member] | Cash Flow Hedging [Member] | Sales [Member]
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	6	6
Interest Rate Swap [Member] | Cash Flow Hedging [Member]
Amount After Tax of Gain (Loss) Recognized in Other Comprehensive Income On Derivatives, Effective Portion [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	1	1
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Net Interest Expense
Pre-tax Amount of Gain (Loss) reclassified From Accumulated Other Comprehensive Income Into Income (Effective Portion) [Abstract]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(2)	(1)
Interest Rate Contract [Member] | Fair Value Hedging [Member]
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract]
Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	(6)		$ (7)
Foreign Exchange [Member] | Net Investment Hedging [Member]
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract]
Change in cumulative translation adjustment, before tax	33	26
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	7	(3)
Cross Currency Interest Rate Contract [Member] | Net Investment Hedging [Member]
Other Comprehensive Income (Loss), Derivatives and Non-derivatives Qualifying as Hedges, before Tax [Abstract]
Change in cumulative translation adjustment, before tax	18	19
AOCI, Derivative Qualifying as Hedge, Excluded Component	$ 41	$ 6

RETIREMENT PLANS (Details)

RETIREMENT PLANS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Postretirement Benefits Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost	$ 0	$ 0
Interest cost	5	6
Expected return on assets	(1)	(1)
Prior service credit, net	(10)	(10)
Net periodic benefit (credit) cost	(6)	(5)
UNITED STATES | Pension Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost	7	7
Interest cost	14	19
Expected return on assets	(34)	(32)
Prior service credit, net	0	0
Net periodic benefit (credit) cost	(13)	(6)
Foreign Plan [Member] | Pension Plan [Member]
Components of net periodic benefit cost [Abstract]
Service cost	4	3
Interest cost	4	5
Expected return on assets	(8)	(8)
Prior service credit, net	0	0
Net periodic benefit (credit) cost	$ 0	$ 0

LEASES (Details)

LEASES (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Lessee Disclosure [Abstract]
Operating Lease, Right-of-Use Asset	$ 187		$ 197
Operating Lease, Right-of-Use Asset, Reclassified	8		$ 8
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	47
Lessee, Operating Lease, Liability, Payments, Due Year Two	51
Lessee, Operating Lease, Liability, Payments, Due Year Three	40
Lessee, Operating Lease, Liability, Payments, Due Year Four	27
Lessee, Operating Lease, Liability, Payments, Due Year Five	16
Lessee, Operating Lease, Liability, Payments, Due after Year Five	33
Lessee, Operating Lease, Liability, Payments, Due	214
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	28
Operating Lease, Liability	186
Operating Lease, Liability, Current	41
Operating Lease, Liability, Noncurrent	145
Lease, Cost [Abstract]
Operating Lease, Cost	19	$ 15
Short-term Lease, Cost	9	11
Sublease Income	(1)	0
Lease, Cost	27	26
Operating Lease, Payments	18	17
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 16	$ 11
Operating Lease, Weighted Average Remaining Lease Term	5 years	5 years
Operating Lease, Weighted Average Discount Rate, Percent	3.90%	4.20%

COMMITMENTS (Details)

COMMITMENTS (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	$ 1,186
Other Commitment, Due in Second Year	944
Other Commitment, Due in Third Year	1,137
Other Commitment, Due in Fourth Year	1,178
Other Commitment, Due in Fifth Year	580
Other Commitment, Due after Fifth Year	7,813
Other Commitment	$ 12,838
Unrecorded Unconditional Purchase Obligation, Term	30 years
Guarantees [Abstract]
Term, other guarantees	30 years
Maximum potential future payment, other guarantees	$ 35
Transfers and Servicing of Financial Assets [Abstract]
Receivable Sold Under Factoring Arrangement	457	$ 101
Debt Securities
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	0
Other Commitment, Due in Second Year	483
Other Commitment, Due in Third Year	741
Other Commitment, Due in Fourth Year	821
Other Commitment, Due in Fifth Year	241
Other Commitment, Due after Fifth Year	3,298
Other Commitment	5,584
Revolving Credit Facility [Member]
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	710
Other Commitment, Due in Second Year	0
Other Commitment, Due in Third Year	0
Other Commitment, Due in Fourth Year	0
Other Commitment, Due in Fifth Year	0
Other Commitment, Due after Fifth Year	0
Other Commitment	710
Interest Payable
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	154
Other Commitment, Due in Second Year	185
Other Commitment, Due in Third Year	173
Other Commitment, Due in Fourth Year	153
Other Commitment, Due in Fifth Year	136
Other Commitment, Due after Fifth Year	1,413
Other Commitment	2,214
Obligations
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	131
Other Commitment, Due in Second Year	151
Other Commitment, Due in Third Year	100
Other Commitment, Due in Fourth Year	89
Other Commitment, Due in Fifth Year	98
Other Commitment, Due after Fifth Year	1,958
Other Commitment	2,527
Unrecorded Unconditional Purchase Obligation, Purchases	2,500
Operating Leases
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	47
Other Commitment, Due in Second Year	51
Other Commitment, Due in Third Year	40
Other Commitment, Due in Fourth Year	27
Other Commitment, Due in Fifth Year	16
Other Commitment, Due after Fifth Year	33
Other Commitment	214
Other Liabilities
Other Commitments [Line Items]
Other Commitment, Due in Next Twelve Months	144
Other Commitment, Due in Second Year	74
Other Commitment, Due in Third Year	83
Other Commitment, Due in Fourth Year	88
Other Commitment, Due in Fifth Year	89
Other Commitment, Due after Fifth Year	1,111
Other Commitment	$ 1,589

ENVIRONMENTAL MATTERS AND ASS_3

ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning of period	$ 287
End of period	285	$ 287
Accrual for Environmental Loss Contingencies, Balance Sheet Classification [Abstract]
Accrued Environmental Loss Contingencies, Current	20	20
Accrued Environmental Loss Contingencies, Noncurrent	265	267
Environmental Remediation [Member]
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning of period	260	271
Changes in estimates recognized in earnings and other	2	4
Cash reductions	(4)	(15)
End of period	$ 258	260
Expected Payment Period of Environmental Contingencies	approximately 30 years
Environmental Remediation [Member] | Minimum [Member]
Site Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 258	260
Environmental Remediation [Member] | Maximum [Member]
Site Contingency [Line Items]
Loss Contingency, Estimate of Possible Loss	484	487
Environmental ARO [Member]
Site Contingency [Line Items]
Best Estimate Accrued to-date For Asset Retirement Obligation	27	27
Non Environmental ARO [Member]
Site Contingency [Line Items]
Best Estimate Accrued to-date For Asset Retirement Obligation	$ 48	$ 48

STOCKHOLDERS' EQUITY Part 1 (De

STOCKHOLDERS' EQUITY Part 1 (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
Dividends, Per Share		$ 0.66	$ 0.62
Stockholders' Equity Attributable to Parent		$ 6,117		$ 5,958
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		6,192	$ 5,919	6,032		$ 5,878
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 0
Net earnings attributable to Eastman		258	209
Net earnings attributable to noncontrolling interest		2	0
Net earnings including noncontrolling interest		260	209
Cash dividends declared		(90)	(87)
Other Comprehensive Income		17	31
Share-based Compensation Expense		15	18
Stock Option Exercises			4
Other		(12)	(9)
Share Repurchases		(30)	(125)
Common Stock [Member]
Stockholders' Equity Attributable to Parent		2	2	2		2
Cumulative Effect of New Accounting Principle in Period of Adoption					0
Net earnings attributable to Eastman		0	0
Cash dividends declared		0	0
Other Comprehensive Income		0	0
Share-based Compensation Expense		0	0
Stock Option Exercises			0
Other		0	0
Share Repurchases		0	0
Additional Paid-in Capital [Member]
Stockholders' Equity Attributable to Parent		2,109	2,060	2,105		2,048
Cumulative Effect of New Accounting Principle in Period of Adoption					0
Net earnings attributable to Eastman		0	0
Cash dividends declared		0	0
Other Comprehensive Income		0	0
Share-based Compensation Expense	[1]	15	18
Stock Option Exercises			4
Other	[2]	(11)	(10)
Share Repurchases		0	0
Retained Earnings [Member]
Stockholders' Equity Attributable to Parent		8,133	7,675	7,965		7,573
Cumulative Effect of New Accounting Principle in Period of Adoption	[3]				(20)
Net earnings attributable to Eastman		258	209
Cash dividends declared	[4]	(90)	(87)
Other Comprehensive Income		0	0
Share-based Compensation Expense		0	0
Stock Option Exercises			0
Other		0	0
Share Repurchases		0	0
Accumulated Other Comprehensive Income (Loss) [Member]
Stockholders' Equity Attributable to Parent		(197)	(194)	(214)		(245)
Cumulative Effect of New Accounting Principle in Period of Adoption	[3]				20
Net earnings attributable to Eastman		0	0
Cash dividends declared		0	0
Other Comprehensive Income		17	31
Share-based Compensation Expense		0	0
Stock Option Exercises			0
Other		0	0
Share Repurchases		0	0
Treasury Stock [Member]
Stockholders' Equity Attributable to Parent		(3,930)	(3,700)	(3,900)		(3,575)
Cumulative Effect of New Accounting Principle in Period of Adoption					0
Net earnings attributable to Eastman		0	0
Cash dividends declared		0	0
Other Comprehensive Income		0	0
Share-based Compensation Expense		0	0
Stock Option Exercises			0
Other		0	0
Share Repurchases		(30)	(125)
Parent [Member]
Stockholders' Equity Attributable to Parent		6,117	5,843	5,958		5,803
Cumulative Effect of New Accounting Principle in Period of Adoption					0
Net earnings attributable to Eastman		258	209
Cash dividends declared	[4]	(90)	(87)
Other Comprehensive Income		17	31
Share-based Compensation Expense	[1]	15	18
Stock Option Exercises			4
Other	[2]	(11)	(10)
Share Repurchases		(30)	(125)
Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Parent		75	76	$ 74		$ 75
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 0
Net earnings attributable to noncontrolling interest		2	0
Cash dividends declared		0	0
Other Comprehensive Income		0	0
Share-based Compensation Expense		0	0
Stock Option Exercises			0
Other		(1)	1
Share Repurchases		$ 0	$ 0
[1]	Share-based compensation expense is the fair value of share-based awards.
[2]	Additional paid-in capital consists of value of shares withheld for employees' taxes on vesting of share-based compensation awards.
[3]	On January 1, 2019, Eastman adopted ASU 2018-02 Income Statement - Reporting Comprehensive Income resulting in the reclassification of $20 million of stranded tax expense from AOCI to retained earnings.
[4]	Cash dividends declared consists of cash dividends paid and dividends declared but unpaid.

STOCKHOLDERS' EQUITY Part 2 AOC

STOCKHOLDERS' EQUITY Part 2 AOCI (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Translation Adjustment	$ (245)		$ (264)	$ (309)
Change in cumulative translation adjustment	19	$ 30	45
Benefit Plans Unrecognized Prior Service Credits	99		106	106
Change in Benefit Plans Unrecognized Prior Service Credits	(7)		0
Unrealized Gains (Losses) on Derivative Instruments	(50)		(55)	(41)
Change in Unrealized Gains (Losses) on Derivative Instruments	5		(14)
Unrealized Losses on Investments	(1)		(1)	(1)
Change in Unrealized Losses on Investments	0		0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			31
Accumulated Other Comprehensive Income (Loss), Net of Tax	(197)		(214)	$ (245)
Total other comprehensive income (loss), net of tax	$ 17	$ 31
Accounting Standards Update 2018-02 [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect on Retained Earnings, Tax			(29)
Accounting Standards Update 2018-02 [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect on Retained Earnings, Tax			$ 9

STOCKHOLDERS' EQUITY Part 3 OCI

STOCKHOLDERS' EQUITY Part 3 OCI (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Other Comprehensive Income (Loss), before Tax [Abstract]
Change in cumulative translation adjustment, before tax	$ 19	$ 30
Amortization of unrecognized prior service credits included in net periodic costs, before tax	(10)	(10)
Unrealized gain (loss), before tax	10	13
Reclassification adjustment for (gain) loss included in net income, before tax	(3)	(3)
Total other comprehensive income (loss), before tax	16	30
Other comprehensive income (loss), net of tax:
Change in cumulative translation adjustment	19	30	$ 45
Amortization of unrecognized prior service credits	(7)	(7)
Unrealized gain (loss)	7	10
Reclassification adjustment for (gains) losses included in net income, net	(2)	(2)
Total other comprehensive income (loss), net of tax	$ 17	$ 31

EARNINGS AND DIVIDENDS PER SH_3

EARNINGS AND DIVIDENDS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net earnings attributable to Eastman	$ 258	$ 209
Weighted average shares used for basic EPS (in shares)	136,000,000	139,000,000
Dilutive effect of stock options and other awards	500,000	1,100,000
Weighted average shares used for diluted EPS (in shares)	136,500,000	140,100,000
Earnings Per Share, Basic	$ 1.90	$ 1.50
Earnings Per Share, Diluted	$ 1.89	$ 1.49
Underlying options excluded from the computation of diluted earnings per share (in shares)	3,921,686	2,261,873
Shares repurchased (in shares)	510,301	1,582,076
Cash dividends declared (per share)	$ 0.66	$ 0.62

ASSETS IMPAIRMENTS AND RESTRU_3

ASSETS IMPAIRMENTS AND RESTRUCTURING (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Impairment of Long-Lived Assets to be Disposed of	$ 7	$ 0
Impairment of Intangible Assets, Finite-lived	2	0
Severance Costs	5	28
Business Exit Costs	0	4
Total	14	32
Restructuring Charge [Roll Forward]
Balance at Beginning of Period	28	14	$ 14
Provision / Adjustments	14		126
Restructuring Reserve, Accrual Adjustment	(9)
Non-cash Reductions			(71)
Cash Reductions	(6)		(41)
Balance at End of Period	27		28
Asset impairment charges	9	0
Facility Closing [Member]
Restructuring Charge [Roll Forward]
Balance at Beginning of Period	11	8	8
Provision / Adjustments	0		9
Restructuring Reserve, Accrual Adjustment	0		1
Cash Reductions	(1)		(7)
Balance at End of Period	10		11
Employee Severance [Member]
Restructuring Charge [Roll Forward]
Balance at Beginning of Period	17	6	6
Provision / Adjustments	5		45
Restructuring Reserve, Accrual Adjustment	0		0
Cash Reductions	(5)		(34)
Balance at End of Period	17		17
Non-Cash Charges [Member]
Restructuring Charge [Roll Forward]
Balance at Beginning of Period	0	0	0
Provision / Adjustments	9		72
Non-cash Reductions	(9)		(72)
Cash Reductions	0		0
Balance at End of Period	0		$ 0
Additives And Functional Products [Member]
Restructuring Cost and Reserve [Line Items]
Impairment of Intangible Assets, Finite-lived	2
Corporate Cost Actions 2019 [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs		28
Capital Project AFP [Member] | Additives And Functional Products [Member]
Restructuring Cost and Reserve [Line Items]
Business Exit Costs		$ 4
Site Closure North America 2020 [Member] | Advanced Materials [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	3
Restructuring Charge [Roll Forward]
Asset impairment charges	4
Site Closure Asia Pacific [Member] | Additives And Functional Products [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	1
Restructuring Charge [Roll Forward]
Asset impairment charges	3
Site Closure Singapore 2019 [Member] | Chemical Intermediates [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 1

SHARE-BASED COMPENSATION AWAR_3

SHARE-BASED COMPENSATION AWARDS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 15	$ 18
Share-based compensation net of deferred tax expense	$ 11	$ 14
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	21.56%	19.61%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	3.30%	2.41%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	0.94%	2.56%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term	5 years 10 months 24 days	5 years 8 months 12 days
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 61.51	$ 82.69
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 7.92	$ 13.60
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 6
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	3 years
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 3	$ 5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	622	691
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award	ten years
Qualifying Termination Eligibility Preceding Requisite Service Period [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 1	$ 3
Performance Shares [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	423	412
Restricted Stock Units (RSUs) [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	123	116
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Other Share Based Compensation Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense before tax	$ 12	$ 13
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	$ 90
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	3 years

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Cash Flow Information [Abstract]
Other current assets	$ 7	$ 2
Other noncurrent assets	9	6
Payables and other current liabilities	58	59
Long-term liabilities and equity	(3)	(14)
Total	$ 71	$ 53

SEGMENT AND REGIONAL SALES IN_3

SEGMENT AND REGIONAL SALES INFORMATION (Details) $ in Millions		3 Months Ended
		Mar. 31, 2020USD ($)Segment	Mar. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments | Segment		4
Sales [Abstract]
Sales		$ 2,241	$ 2,380
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		368	320
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	16,465		$ 16,008
Operating Segments [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		376	363
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	14,527		14,591
Corporate, Non-Segment [Member]
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	1,938		1,417
Growth Initiatives and Businesses not Allocated to Segments [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		(23)	(27)
Pension and OPEB Costs Not Allocated to Operating Segments [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		21	12
Restructuring and acquisition integration and transaction costs [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		0	(28)
Other Nonoperating Income (Expense) [Member] | Corporate, Non-Segment [Member]
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		(6)	0
Additives And Functional Products [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		822	855
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		143	146
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	6,375		6,387
Advanced Materials [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		615	657
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		100	102
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	4,429		4,415
Chemical Intermediates [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		592	655
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		80	73
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	2,703		2,775
Fibers [Member] | Operating Segments [Member]
Sales [Abstract]
Sales		212	213
Earnings (Loss) Before Interest and Taxes [Abstract]
Earnings before interest and taxes		53	42
Segment Reporting Information, Additional Information [Abstract]
Assets by Segment	[1]	1,020		$ 1,014
North America [Member]
Sales [Abstract]
Sales		980	1,000
Asia Pacific [Member]
Sales [Abstract]
Sales		495	553
EMEA [Member]
Sales [Abstract]
Sales		631	689
Latin America [Member]
Sales [Abstract]
Sales		$ 135	$ 138
[1]	Segment assets include accounts receivable, inventory, fixed assets, goodwill, and intangible assets.