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Increase (decrease) in trade payables Increase (Decrease) in Accounts Payable, Trade Disposal Group, Including Discontinued Operation, Assets Disposal Group, Including Discontinued Operation, Assets Tax benefit from finalization of prior year return Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration Risk, Percentage Concentration Risk, Percentage Pension Plan [Member] Pension Plan [Member] Derivative, Cash Received on Hedge Derivative, Cash Received on Hedge Effective Income Tax Rate Reconciliation, FDII, Amount Effective Income Tax Rate Reconciliation, FDII, Amount Stock Option [Member] Share-Based Payment Arrangement, Option [Member] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Site Closure Acetate Yarn 2022 Site Closure Acetate Yarn 2022 [Member] Site Closure Acetate Yarn 2022 Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Asset impairment charges Asset Impairment Charges Asset Impairment Charges Total Eastman stockholders' equity Beginning Balance Ending Balance Equity, Attributable to Parent Cash dividends declared Dividends, Common Stock, Cash Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Percent Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Percent Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Percent Schedule of Properties Property, Plant and Equipment [Table Text Block] Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares Authorized Percentage of company match of the first seven percent of employee's compensation contributed to the plan (in hundredths) Percentage of Company Match of an Employees Eligible Compensation Contributed to the Plan The percentage that the company will match to an employee's eligible compensation that is contributed to the plan. 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Cover [Abstract] Maximum [Member] Maximum [Member] Estimated Useful Life in Years Finite-Lived Intangible Asset, Useful Life 4.5% Notes Due Dec 2028 [Member] 4.5% Notes Due Dec 2028 [Member] 4.5% Notes Due Dec 2028 [Member] Properties Property, Plant and Equipment, Net [Abstract] Less: Net earnings attributable to noncontrolling interest Income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Rate of compensation increase (in hundredths) Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Unrecognized Tax Benefits, Interest on Income Taxes Accrued Unrecognized Tax Benefits, Interest on Income Taxes Accrued Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Net Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Total borrowings Debt, Long-Term and Short-Term, Combined Amount Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Plan, term description Share-Based Compensation Arrangement by Share-Based Payment Award, Description Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Earnings before income taxes Total Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Site Contingency, Nature of Contingency [Domain] Environmental Remediation Site [Domain] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from Issuance of Debt Proceeds from Issuance of Debt Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Operating Segments Operating Segments [Member] Schedule of Cash Paid for Interest and Income Taxes and Noncash Investing and Financing Activities Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Unrealized gain (loss) during period Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Expiring period of net operating loss carryforwards, maximum (in years) Operating Loss Carryforwards Expiring Period Maximum The maximum expiration period of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates. Exercise Price Range [Axis] Exercise Price Range [Axis] Balance at Beginning of Period Balance at End of Period Restructuring Reserve Other long-term liabilities Accrued Income Taxes, Noncurrent Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Miscellaneous receivables Other Receivables Computer software [Member] Software and Software Development Costs [Member] Document Fiscal Period Focus Document Fiscal Period Focus Rate of compensation increase (in hundredths) Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Award Timing Method Award Timing Method [Text Block] Award Type [Axis] Award Type [Axis] Schedule of Deferred Tax Charge (Benefit) Recorded as a Component of Accumulated Other Comprehensive Loss Deferred tax charge (benefit) component of accumulated other comprehensive loss [Table Text Block] Tabular disclosure of the deferred tax charge (benefit) recorded as a component of accumulated other comprehensive loss in stockholders' equity. Hedging Relationship [Domain] Hedging Relationship [Domain] Effective Income Tax Rate Reconciliation, Tax Contingency, Other, Amount Effective Income Tax Rate Reconciliation, Tax Contingency, Other, Amount Equity Method Investee, Name [Domain] Investment, Name [Domain] Share-based Compensation Share-Based Payment Arrangement [Policy Text Block] Site Closure Advanced Interlayers North America 2020 [Member] Site Closure Advanced Interlayers North America 2020 [Member] Site Closure Advanced Interlayers North America 2020 Trading Symbol Trading Symbol Lessee, Operating Lease, Liability, Payments, Due Year Four Lessee, Operating Lease, Liability, to be Paid, Year Four Tranche One Tranche One [Member] Tranche One 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 [Abstract] (Deprecated 2025) Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Entity Address, City or Town Entity Address, City or Town Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Effect of currency exchange Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Deferred tax assets less valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred Tax Assets, Net of Valuation Allowance Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Net increase (decrease) in commercial paper and other borrowings Proceeds from (Repayments of) Short-Term Debt Restricted Stock Units (RSUs) [Member] Restricted Stock Units (RSUs) [Member] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Severance Costs Severance Costs Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Entity Emerging Growth Company Entity Emerging Growth Company Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount [Abstract] Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount [Abstract] Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] 2028 Other Commitment, to be Paid, Year Three Amortization of: [Abstract] Amortization Of Abstract 1 Restructuring Charge [Roll Forward] Restructuring Reserve [Roll Forward] 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year One Deferred Tax Liabilities, Tax Deferred Income Deferred Tax Liabilities, Tax Deferred Income Balance, beginning of period (in shares) Balance, ending of period (in shares) Common Stock, Shares, Outstanding Share-based Payment Arrangement, Option, Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] SEC Schedule, 12-09, Allowance, Credit Loss [Member] SEC Schedule, 12-09, Allowance, Credit Loss [Member] Schedule of Changes to Environmental Remediation Liabilities Roll Forward Of Environmental Remediation Liabilities [Table Text Block] Roll Forward Of Environmental Remediation Liabilities [Table Text Block] Restructuring Reserve, Period Increase (Decrease) Restructuring Reserve, Period Increase (Decrease) Weighted-average assumptions used to determine benefit obligations for years ended [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Other changes in plan assets and benefit obligations recognized in other comprehensive income [Abstract] Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract] Schedule of Property, Plant and Equipment with Estimated Useful Life [Line Items] Schedule of Property, Plant and Equipment with Estimated Useful Life [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Other noncurrent asset Assets for Plan Benefits, Defined Benefit Plan Payables and other current liabilities Accrued Income Taxes, Current Stock Option Exercises Stock Issued During Period, Value, Stock Options Exercised Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Change in projected benefit obligation [Roll Forward] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Environmental Costs [Abstract] Environmental Costs [Abstract] Asset Retirement Obligations And Environmental Costs [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Effective Income Tax Rate Reconciliation, Subpart F Income, Amount Effective Income Tax Rate Reconciliation, Subpart F Income, Amount Effective Income Tax Rate Reconciliation, Subpart F Income, Amount Provision for income taxes Income Tax Expense (Benefit) 2027 Term Loan 2027 Term Loan [Member] 2027 Term Loan Derivatives and hedging Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Unrealized Gains (Losses) on Derivative Instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax (Deprecated 2025) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Designated as Hedging Instrument [Member] Designated as Hedging Instrument [Member] Subsegments [Axis] Subsegments [Axis] Fair Value Hierarchy and NAV [Axis] Defined Benefit Plan, Fair Value of Plan Assets by Measurement [Axis] Fair Value Hierarchy and NAV [Axis] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Derivative Notional Amount, Entered in Period Derivative Notional Amount, Entered in Period Derivative Notional Amount, Entered in Period Hedging Relationship [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Properties and equipment at cost Property, Plant and Equipment, Gross Initial (in hundredths) Projected Benefit Obligation Health Care Cost Trend Rate Assumed For Next Fiscal Year The assumed health care cost trend rate for the next year used to measure the expected cost of benefits included in projected benefit obligation. Unrealized Losses on Investments AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax Grant date exercise price, minimum share based compensation Grant date exercise price, minimum Description of pertinent provisions of equity-based compensation award exercise price as of the date of award grant. 1.50% notes due May 2023 [Member] Notes Due 2023 [Member] 1.5% Notes Due 2023 [Member] Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] Current assets Increase (Decrease) in Other Current Assets Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Movement In Valuation Allowances And Reserves Roll Forward SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Acquisition (2) Goodwill, Acquired During Period Cash proceeds received from option exercises Proceeds from Stock Options Exercised Mergers, Acquisitions and Dispositions Disclosures [Text Block] Mergers, Acquisitions and Dispositions Disclosures [Text Block] Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Income Tax Paid, Federal, after Refund Received Income Tax Paid, Federal, after Refund Received Buildings and Building Equipment [Member] Building and Building Improvements [Member] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Capitalized research and development expenses Deferred Tax Asset, Deferred Expenses, Capitalized Research and Development Costs Amount of deferred tax asset attributable to taxable temporary differences from research and development costs. Litigation and Contingent Liabilities Commitments and Contingencies, Policy [Policy Text Block] 2031 and beyond Other Commitment, to be Paid, after Year Five Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Deferred tax liabilities [Abstract] Deferred Tax Liabilities, Gross [Abstract] Schedule of Shares of Common Stock Issued Shares of common stock issued [Table Text Block] Tabular disclosure of shares of common stock issued roll forward. Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Accumulated benefit obligation Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Amounts recognized in the Consolidated Statements of Financial Position consist of [Abstract] Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Table] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Preferred Stock, Par or Stated Value Per Share Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Schedule of Assumptions Used in the Determination of Fair Value of Stock Options Awarded Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Segment Reporting, Expense Information Used by CODM, Type [Extensible Enumeration] Segment Reporting, Expense Information Used by CODM, Type [Extensible Enumeration] Net interest expense Interest Income (Expense), Net Interest Income (Expense), Operating Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Curtailment gain Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax Depreciation expense Depreciation Derivative Liability, Fair Value, Gross Liability Derivative Liability, Subject to Master Netting Arrangement, before Offset Advanced Materials [Member] Advanced Materials [Member] A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Statement Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Sublease Income Sublease Income Schedule of Fair Value Measurements of Pension Plan Assets on a Recurring Basis Schedule Of Allocation Of Plan Assets Fair Value [Table Text Block] Disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to: the level within the fair value hierarchy in which the fair value measurements fall. Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 2026 Other Commitment, to be Paid, Year One Number of Reportable Segments Number of Reportable Segments Sales [Member] Sales [Member] Deferred tax assets [Abstract] Components of Deferred Tax Assets [Abstract] Transaction costs and Gain/Loss on Business Transaction costs and Gain/Loss on Business [Member] Transaction costs and Gain/Loss on Business Exercise Prices of $106-121 Exercise Prices of $111-121 [Member] Exercise Prices of $111-121 Other Restructuring Costs Other Restructuring Costs Entity Address, State or Province Entity Address, State or Province Effective Income Tax Rate Reconciliation, Changes in State Valuation Allowance Effective Income Tax Rate Reconciliation, Changes in State Valuation Allowance Effective Income Tax Rate Reconciliation, Changes in State Valuation Allowance 2029 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Supplier Finance Program [Line Items] Supplier Finance Program [Line Items] Euro Member Countries, Euro Euro Member Countries, Euro Schedule of Valuation and Qualifying Accounts Valuation and Qualifying Accounts [Table Text Block] A Tabular disclosure of allowance and reserve accounts including their beginning and ending balances, as well as a reconciliation by type of activity during the period. Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. Total current liabilities Liabilities, Current Outside United States [Abstract] Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract] Individual: Individual [Axis] Treasury stock held by the Companys charitable foundation in shares Treasury stock held by the Companys charitable foundation in shares This element represents the number of shares held by the company charitable foundation as of the balance sheet date. Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount Charges for domestic contributions to the Defined Contribution plans Defined Contribution Plan, Cost Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Document Annual Report Document Annual Report Entities [Table] Entities [Table] Settlement Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Reserve for third party contributions Reserve for third party contributions Reserve for third party contributions, which represents an increase to benefit obligations and an increase to plan assets. Repayment of borrowings Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Government Assistance, Type [Axis] Government Assistance, Type [Axis] Commercial Paper, Average Rate Paid Commercial Paper, Average Rate Paid Pension and other postretirement contributions (in excess of) less than expenses Pension And Other Postretirement Benefits Contributions In Excess Of Less Than Expenses The difference between the amount of cash or cash equivalents contributed during the reporting period by the entity to fund its pension plans and its non-pension postretirement benefit plans and the amount recorded as an expense during the period. Cumulative construction-period interest Cumulative construction-period interest Total construction period interest costs capitalized. Derivatives used in Net Investment Hedge, Increase (Decrease), Gross of Tax Derivatives used in Net Investment Hedge, Increase (Decrease), Gross of Tax Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate Weighted-Average Remaining Contractual Life (in years) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Funded status at end of year Defined Benefit Plan, Funded (Unfunded) Status of Plan Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Change in cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value 2029 Other Commitment, to be Paid, Year Four Latin America [Member] Latin America [Member] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Property, Plant and Equipment by Type [Axis] Long-Lived Tangible Asset [Axis] Curtailment gain Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment Initial (in hundredths) Periodic Benefit Cost Health Care Cost Trend Rate Assumed For Next Fiscal Year The assumed health care cost trend rate for the next year used to measure the expected cost of benefits included in periodic benefit cost. Commercial Paper Borrowings Commercial Paper Beginning Balance Ending Balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount closure of a heat-transfer fluids production line closure of a heat-transfer fluids production line [Member] Closure of a heat-transfer fluids production line at a North America specialty fluids and energy facility 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Other noncurrent assets Other Assets, Noncurrent Entity Central Index Key Entity Central Index Key LIFO Inventory [Member] SEC Schedule, 12-09, Reserve, Inventory [Member] PEO Name PEO Name Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax Best Estimate Accrued to-date For Asset Retirement Obligation Asset Retirement Obligation Sales Revenues Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Curtailment gain Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment Restructuring of Operations Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Supplier Finance Program, Obligation, Addition Supplier Finance Program, Obligation, Addition Raw materials and supplies Inventory, Raw Materials and Supplies, Gross Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Tranche Three Tranche Three [Member] Tranche Three Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Changes in estimates recorded to earnings and other Accrual for Environmental Loss Contingencies, Revision in Estimates Disposal Group, Including Discontinued Operation, Consideration Disposal Group, Including Discontinued Operation, Consideration Operating Lease, Right-of-Use Asset, Reclassified Operating Lease, Right-of-Use Asset, Reclassified Amount of lessee's right to use underlying asset under operating lease which was reclassified from other assets. Long-term borrowings Long-Term Debt, Excluding Current Maturities Defined Benefit Plan, Plan Assets, Allocations [Abstract] Defined Benefit Plan, Plan Assets, Allocations [Abstract] Corporate Cost Actions [Member] Corporate Cost Actions [Member] Corporate Cost Actions Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Finite-Lived Intangible Asset, Expected Amortization, Year Three Finite-Lived Intangible Asset, Expected Amortization, Year Three Depreciation and Amortization Depreciation, Depletion, and Amortization [Policy Text Block] Gross Carrying Value Finite-Lived Intangible Assets, Gross Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Expected Payment Period of Environmental Contingencies Expected Payment Period of Environmental Contingencies Expected period over which payments for aggregated environmental contingent liabilities will be paid. Entity Address, Address Line One Entity Address, Address Line One Research and development expenses Research and Development Expense Accumulated Other Comprehensive Income [Member] AOCI Attributable to Parent [Member] Schedule of Remaining Contractual Term and Weighted Average Exercise Price of Stock Options Outstanding and Exercisable Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Investment Type Categorization [Domain] Investments [Domain] Federal subsidy on benefits paid Defined Benefit Plan, Plan Assets, Prescription Drug Subsidy Receipt Asset Retirement Obligation Type [Domain] Asset Retirement Obligation Type [Domain] [Domain] for Asset Retirement Obligation Type [Axis] OCI, Derivative Qualifying as Hedge, Excluded Component OCI, Derivative Qualifying as Hedge, Excluded Component Other comprehensive income (loss) from increase (decrease) in value of excluded component of derivative hedge. 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Does not meet the quantitative thresholds and thus is not classified as reportable segment for which there is an accounting requirement to report separate financial information on those components in the entity's financial statements. 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All other plans are subplans of this plan. 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Shared Sites [Member] Shared Sites [Member] Shared Sites [Member] Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Lessee, Operating Lease, Liability, Payments, Due Year Three Lessee, Operating Lease, Liability, to be Paid, Year Three Company contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Long-term liabilities and equity Increase (Decrease) in Other Noncurrent Liabilities Intermediates product line [Member] Intermediates product line [Member] Intermediates product line [Member] Comprehensive income attributable to Eastman Comprehensive Income (Loss), Net of Tax, Attributable to Parent Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name Credit Facilities [Abstract] Line of Credit Facility [Abstract] Deferred income tax liabilities Deferred Income Tax Liabilities, Net Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets Other Share-Based Compensation Awards [Member] Other Share-Based Compensation Awards [Member] Other Share-Based compensations Awards such as long-term performance stock awards, restricted stock awards, and stock appreciation rights SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Other Investment Companies [Member] Other Investment Companies [Member] Additives And Functional Products [Member] Additives And Functional Products [Member] A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Foreign tax credit carryforwards available to reduce possible future domestic income taxes Deferred Tax Assets, Tax Credit Carryforwards, Foreign Long-term Debt Long-Term Debt Income Tax Contingency [Table] Income Tax Contingency [Table] Schedule of Components of Comprehensive Income (Loss) Before Tax and Net of Tax Effects Comprehensive Income (Loss) [Table Text Block] Total assets Assets by Segment Assets Finite-Lived Intangible Asset, Expected Amortization, Year One Finite-Lived Intangible Asset, Expected Amortization, Year One Unrecognized Prior Service Credits for Benefit Plans Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Geographical [Domain] Geographical [Domain] Japan, Yen Japan, Yen Operating leases [Member] Operating leases [Member] Operating leases [Member] The total of future contractually required payments on leases defined as operating Income Taxes Income Tax, Policy [Policy Text Block] Legal Matters [Abstract] Legal Matters [Abstract] 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Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Animal Nutrition [Member] Animal Nutrition [Member] Animal Nutrition [Member] Charged to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Change in plan assets [Roll Forward] Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] (Deprecated 2025) Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] (Deprecated 2025) Plan Name [Axis] Plan Name [Axis] Properties Property, Plant and Equipment, Policy [Policy Text Block] Summary of Derivative Instruments [Abstract] Summary of Derivative Instruments [Abstract] PEO PEO [Member] Line of Credit Facility, Maximum Month-end Outstanding Amount Line of Credit Facility, Maximum Month-end Outstanding Amount Employee Severance [Member] Employee Severance [Member] Effective Income Tax Rate Reconciliation, GILTI, Amount Effective Income Tax Rate Reconciliation, GILTI, Amount Intangible assets Deferred Tax Liabilities, Intangible Assets Debt Debt [Member] Corporate and Other Corporate Segment and Other Operating Segment [Member] UNITED STATES UNITED STATES Changes in operating assets and liabilities, net of effect of acquisitions and divestitures: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Manufacturing-related improvements [Member] Land Improvements [Member] Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Cash Flow Hedge Derivative Instrument Liabilities at Fair Value Cash Flow Hedge Derivative Instrument Liabilities at Fair Value Property, plant, and equipment Deferred Tax Liabilities, Property, Plant and Equipment Expected volatility rate (in hundredths) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Prior service credit arising during the period Prior service credit arising during the period Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax Retained Earnings [Member] Retained Earnings [Member] Income Tax Authority [Axis] Income Tax Jurisdiction [Axis] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Schedule of Pension Plan Assets Classified within Level 3 of the Fair Value Hierarchy Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block] Site Closure and Restructuring Costs [Member] Facility Closing [Member] Net Interest Expense Interest Expense [Member] Accrued taxes Taxes Payable, Current Exercise Prices of $61-$75 Exercise Prices of $61-$80 [Domain] Exercise Prices of $61-$80 Intangible assets, net of accumulated amortization Intangible Assets, Net (Excluding Goodwill) Term of service for shares of restricted stock to be granted to a non-employee director Share Based Compensation Policy For Issuing Shares To Nonemployee Directors Upon Exercise The policy, if any, for issuing shares or units upon exercise or conversion of equity-based awards into shares of stock or units, including the source of those shares or units (that is, new share, treasury shares, new units or treasury units). 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Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax Reconciliation of beginning and ending amounts of unrecognized tax benefits [Roll Forward] Unrecognized Tax Benefits [Roll Forward] Auditor Name Auditor Name Weighted average assumptions used to determine fair value of stock options awarded [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract] Estimated future benefits payments [Abstract] Defined Benefit Plan, Expected Future Benefit Payment [Abstract] Restructuring Costs and Asset Impairment Charges [Abstract] Restructuring Costs and Asset Impairment Charges [Abstract] Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information [Abstract] Operating Loss Carryforwards, Valuation Allowance Operating Loss Carryforwards, Valuation Allowance Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Goodwill, Impaired, Accumulated Impairment Loss Goodwill, Impaired, Accumulated Impairment Loss Other Performance Measure, Amount Other Performance Measure, Amount Notional Amount of Nonderivative Instruments Notional Amount of Nonderivative Instruments Pension and Other Postretirement Benefits Pension and Other Postretirement Plans, Policy [Policy Text Block] Polyester Based Fibers [Member] Polyester Based Fibers [Member] Polyester Based Fibers Other Current Liabilities [Member] Other Current Liabilities [Member] Reconciliation income tax rate [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Fair Value Measurements Fair Value of Financial Instruments, Policy [Policy Text Block] Remaining contractual term and weighted average exercise prices of stock options [Abstract] Remaining contractual term and weighted average exercise prices of stock options [Abstract] Debt Instrument, Maturity Date Text Debt Instrument, Maturity Date Text Debt Instrument, Maturity Date Text Other current assets Other Assets, Current Discount rate for interest costs Discount rate for interest costs Discount rate for interest costs Settlements Defined Benefit Plan, Plan Assets, Payment for Settlement Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Gain on divested business Gain on divested businesses Gain (Loss) on Disposition of Business Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Financial Statement Presentation Basis of Accounting, Policy [Policy Text Block] Operating Lease, Right-of-Use Asset Operating Lease, Right-of-Use Asset Acetate Tow Product Line Member Acetate Tow Product Line Member A significant product line for which there is an accounting requirement to disclose percentage of segment revenue. As recorded in the Consolidated Statements of Financial Position [Abstract] Deferred Tax Assets Liabilities Consolidated Statements Of Financial Position [Abstract] Effective Income Tax Rate Reconciliation, Percent Effective tax rate for the period (in hundredths) Effective Income Tax Rate Reconciliation, Percent Other Segments [Member] Other Operating Segment [Member] Operating Lease, Cost Operating Lease, Cost Additions to capitalized software Payments for Software Operating Lease, Right-of-Use, Prepaid Amount Operating Lease, Right-of-Use, Prepaid Amount Operating Lease, Right-of-Use, Prepaid Amount Plan Name [Domain] Plan Name [Domain] Amortization life of unrecognized compensation expense before tax for these same type awards (in years) Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Legal Matters and Contingencies Legal Matters and Contingencies [Text Block] Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Less: Valuation allowance Deferred Tax Assets, Valuation Allowance North America [Member] North America [Member] Goodwill and Intangible Assets, Policy Goodwill and Intangible Assets, Policy [Policy Text Block] Building And Building Equipment [Member] Building [Member] Derivative and Non-Derivative Financial Instruments Derivatives, Policy [Policy Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of Goodwill [Table] Goodwill [Table] Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Not Designated as Hedging Instrument [Member] Not Designated as Hedging Instrument [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair value of plan assets, beginning of year Fair value of plan assets, end of year Defined Benefit Plan, Plan Assets, Amount Trademarks [Member] Trademarks [Member] Current Current Federal Tax Expense (Benefit) Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Other Commitments [Line Items] Other Commitments [Line Items] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Share-based compensation expense, retirement eligibility preceding the requisite vesting period Share-based compensation expense, retirement eligibility preceding the requisite vesting period Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees, due to retirement eligibility preceding the requisite vesting period. Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Commercial paper and short-term borrowings [Member] Commercial paper and short-term borrowings [Member] Commercial paper and short-term borrowings [Member] Property, Plant, and Equipment, Additional Disclosures [Abstract] Property, Plant, and Equipment, Additional Disclosures [Abstract] -- None. No documentation exists for this element. -- Other Commitments [Table Text Block] Other Commitments [Table Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Post-employment obligations Liability, Pension and Other Postretirement and Postemployment Benefits, Current Amortization expense of definite-lived intangible assets related to continuing operations Amortization of Intangible Assets Lessee, Leases [Policy Text Block] Lessee, Leases [Policy Text Block] Chemical Intermediates [Member] Chemical Intermediates [Member] A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Selling, general and administrative expenses Selling, General and Administrative Expense Accoya Joint Venture Accoya Joint Venture [Member] Accoya Joint Venture Stock Repurchased During Period, Value Stock Repurchased During Period, Value Investments measured at net asset value [Member] Investments measured at net asset value [Member] Investments measured at net asset value [Member] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Depreciation, Depletion and Amortization Depreciation, Depletion and Amortization Other Comprehensive Income (Loss), before Tax [Abstract] Other Comprehensive Income (Loss), before Tax [Abstract] Settlement Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Line of Credit Facility, Current Borrowing Capacity Line of Credit Facility, Expiration Date Line of Credit Facility, Expiration Date Finished goods Inventory, Finished Goods, Gross Schedule of Components of Earnings (Loss) from Continuing Operations and Provisions for Income Taxes Components of earnings (loss) from continuing operations and provisions for income taxes [Table Text Block] Tabular disclosure of income before income tax between domestic and foreign jurisdictions, and components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit). Schedule of Reconciliation of the Changes in Stockholders' Equity Schedule of Stockholders Equity [Table Text Block] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Accounts Receivable and Allowance for Doubtful Accounts Accounts Receivable [Policy Text Block] Foreign tax effects Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Arrangement Duration Trading Arrangement Duration Total Income Tax Expense (Benefit), Intraperiod Tax Allocation Segments [Axis] Segments [Axis] Segments [Axis] Asset impairments and restructuring charges, net Asset impairments and restructuring charges, net [Member] Asset impairments and restructuring charges, net Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain] Fair Value by Liability Class [Domain] Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other Segments [Axis] Other Segments [Axis] The other business segments reported in a Statement. Schedule of Environmental Liabilities, Current and Non-current Schedule of Environmental Liabilities Balance Sheet Line Items [Table Text Block] Schedule Of Environmental Liabilities Balance Sheet Line Items [Table Text Block] Other items, net Payment for (Proceeds from) Other Investing Activity Other items, net Other items, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item SHARE-BASED COMPENSATION PLANS AND AWARDS Share-Based Payment Arrangement [Text Block] Effective Income Tax Rate Reconciliation, Disposition of Business, Percent Effective Income Tax Rate Reconciliation, Disposition of Business, Percent Assets Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Environmental Matters [Abstract] Environmental Matters [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Supplier Finance Program Supplier Finance Program [Table Text Block] Other Commitments [Axis] Other Commitments [Axis] Components of net periodic benefit cost [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] RETIREMENT PLANS Retirement Benefits [Text Block] Early debt extinguishment costs Early debt extinguishment costs Gain (Loss) on Extinguishment of Debt Credit Facility [Domain] Credit Facility [Domain] Stockholders' equity Equity, Attributable to Parent [Abstract] Terminated capital projects Terminated capital projects [Member] Terminated capital projects Stock Repurchases Treasury Stock, Value, Acquired, Cost Method Stated Interest Rate (in hundredths) Debt Instrument, Interest Rate, Stated Percentage Schedule of Equity Method Investment, Equity Method Investee, Name [Axis] Investment, Name [Axis] Revenue from External Customers by Products and Services [Table Text Block] Revenue from External Customers by Products and Services [Table Text Block] Entity Voluntary Filers Entity Voluntary Filers Acetyl Chemical Products [Member] Acetyl Chemical Products [Member] Acetyl Chemical Products [Member] Accelerated Share Repurchases, Settlement (Payment) or Receipt Accelerated Share Repurchases, Settlement (Payment) or Receipt Accrual for Environmental Loss Contingencies [Abstract] Accrual for Environmental Loss Contingencies [Abstract] Provision (benefit) for income taxes on earnings from continuing operations [Abstract] Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] Interest income, net of tax associated with expiration of statute of limitations Unrecognized Tax Benefits Interest Income From Expiration of Statute of Limitations Interest income, net of tax recognized as a result of an associated with expiration of statute of limitations Derivative Asset, Fair Value, Gross Asset Derivative Asset, Subject to Master Netting Arrangement, before Offset Divestitures [Abstract] Divestitures [Abstract] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Other assets Increase (Decrease) in Other Noncurrent Assets Current year prior service credit (cost) Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax Other comprehensive income Income Tax Effects Allocated Directly to Equity Retirement Plan Name [Domain] Retirement Plan Name [Domain] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Disposal Group, Including Discontinued Operation, Liabilities Disposal Group, Including Discontinued Operation, Liabilities Effect of currency exchange Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Health Care Cost Trend [Abstract] Health Care Cost Trend Abstract Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value All Foreign Countries [Member] All Foreign Countries [Member] A second specified group of foreign countries about which segment information is provided by the entity. Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Long Term Performance Share Award Long Term Performance Share Award [Member] Long Term Performance Share Award Machinery and Equipment [Member] Machinery and Equipment [Member] Interest cost Defined Benefit Plan, Interest Cost Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Amortization of: [Abstract] Amortization of: [Abstract] Schedule of Income Tax Expense (Benefit) Included in Consolidated Financial Statement Schedule Of Total Income Tax Expense Benefit [Table Text Block] Tabular disclosure of the total income tax expense (benefit) included in earnings from continuing operations; earnings (losses) from discontinued operations (both from operating activities and disposal of business), and other comprehensive income (loss). Other Noncurrent Liabilities [Member] Other Noncurrent Liabilities [Member] Restatement Determination Date: Restatement Determination Date [Axis] Supplier Finance Program [Table] Supplier Finance Program [Table] Share-Based Compensation Expense Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Deferred Deferred Foreign Income Tax Expense (Benefit) Schedule of Restructuring and Related Charges Restructuring and Related Costs [Table Text Block] Other items, net Proceeds from (Payment for) Other Financing Activity All Currencies [Domain] All Currencies [Domain] Name Trading Arrangement, Individual Name Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Shenzhen Joint Venture [Member] Shenzhen Joint Venture [Member] Name of investee, or group of investees for which combined disclosure is appropriate, in which the Entity has an investment in common stock accounted for under the equity method of accounting and for which certain information is required or determined to be disclosed. Debt Instrument, Face Amount Debt Instrument, Face Amount Defined benefit pension and other postretirement benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Share Repurchase Program [Axis] Share Repurchase Program [Axis] Weighted-average assumptions used to determine net periodic cost for years ended [Abstract] Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Public Equity Funds [Member] Equity Funds [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Earnings from continuing operations before income taxes [Abstract] Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract] Shares of common stock issued [Abstract] Shares of common stock issued [Abstract] -- None. No documentation exists for this element. -- Cash Reductions Payments for Restructuring Specialty Fluids Product Line [Member] Specialty Fluids Product Line [Member] Specialty Fluids Product Line [Member] Restructuring Cost and Reserve [Axis] Restructuring Type [Axis] AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Schedule of Fair Value of Borrowings Fair Value of Borrowings [Table Text Block] Tabular disclosure of information pertaining to fair value of short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Other Commitment Other Commitment Unrealized gain (loss) during period Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax (Deprecated 2025) ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Decreasing to ultimate trend of (in hundredths) Projected Benefit Obligation Ultimate Health Care Cost Trend Rate The ultimate trend rate for health care costs included in projected benefit obligation. Less: Treasury stock at cost (109,891,531 and 108,470,763 shares on December 31, 2025 and 2024, respectively) Treasury Stock, Value Disposal Group, Including Discontinued Operation, Other Assets, Current Disposal Group, Including Discontinued Operation, Other Assets, Current Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Fair Value by Liability Class [Axis] Liability Class [Axis] Lessor, Lease, Description [Table] Lessor, Lease, Description [Table] Foreign Country [Member] Foreign Tax Jurisdiction [Member] Auditor Firm ID Auditor Firm ID Segments [Domain] Segments [Domain] Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Short-term Debt Short-Term Debt [Member] Outside the United States Income (Loss) from Continuing Operations before Income Taxes, Foreign Advanced Interlayers Product Line [Member] Interlayers Product Line [Member] Interlayers Product Line [Member] Accrued Environmental Loss Contingencies, Noncurrent Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Environmental ARO [Member] Environmental ARO [Member] Environmental ARO [Member] Benefit obligation, beginning of year Benefit obligation, end of year Defined Benefit Plan, Benefit Obligation Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Investments Deferred Tax Liabilities, Investments Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] (Increase) decrease in inventories Increase (Decrease) in Inventories Accrued Environmental Loss Contingencies, Current Accrued Environmental Loss Contingencies, Current Government Assistance [Line Items] Government Assistance [Line Items] Coatings and Inks Additives Product Line [Member] Coatings Industry Product Line [Member] Coatings Industry Products [Member] Derivative Assets [Abstract] Derivative Asset [Abstract] Divestitures Defined Benefit Plan, Benefit Obligation, Divestiture Less:  Accumulated depreciation Less: Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Expected Long-Term Rate of Return on Plan Assets Expected Long-Term Rate of Return on Plan Assets Amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected rate of return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Variable compensation payments (in excess of) less than expenses Variable Cash Compensation (In Excess Of) Less Than Expenses Variable compensation (in excess of) less than expenses. The difference between the amount of variable cash or cash equivalents compensation and the amount recorded as an expense during the period. Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Table] Investments, Equity Method and Joint Ventures, Schedule of Equity Method Investments [Table] -- None. No documentation exists for this element. -- All Executive Categories All Executive Categories [Member] Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block] Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block] Schedule of Significant Components of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Common stock ($0.01 par value per share – 350,000,000 shares authorized; shares issued – 223,938,047 and 223,588,347 on December 31, 2025 and 2024, respectively) Common Stock, Value, Issued Tranche Two Tranche Two [Member] Tranche Two Steam line incident costs, net of insurance proceeds Steam line incident costs, net of insurance proceeds Steam line incident costs, net of insurance proceeds Due to and from tax authorities [Abstract] Due to and from tax authorities [Abstract] -- None. No documentation exists for this element. -- Business Combination [Axis] Business Combination [Axis] Comprehensive income including noncontrolling interest Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Revenue from External Customers by Geographic Areas [Table Text Block] Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of Summary of Status of Nonvested Options Schedule of Nonvested Share Activity [Table Text Block] Weighted-Average Exercise Price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Noncontrolling Interest [Member] Noncontrolling Interest [Member] Percentage of equity interest in joint venture (in hudredths) Equity Method Investment, Ownership Percentage Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Defined Benefit Plan, Actual Plan Asset Allocations (in hundredths) Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Cancelled forfeited or expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Hedged Liability, Fair Value Hedge Hedged Liability, Fair Value Hedge Working Capital Management and Off Balance Sheet Arrangements [Abstract] Working Capital Management and Off Balance Sheet Arrangements [Abstract] Working Capital Management and Off Balance Sheet Arrangements [Abstract] Diluted earnings per share attributable to Eastman Earnings Per Share, Diluted [Abstract] RESERVE ROLLFORWARDS SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Hedging Designation [Axis] Hedging Designation [Axis] Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Scenario [Axis] Scenario [Axis] Accounts receivable and allowance for doubtful accounts [Abstract] Receivables, Net, Current [Abstract] Schedule of Unrecognized Tax Benefits Roll Forward Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Disposal Group, Including Discontinued Operation, Goodwill Disposal Group, Including Discontinued Operation, Goodwill Projected benefit obligation Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Adjusted income (loss) from continuing operations before interest expense, interest income, income taxes, noncontrolling interests, net Adjusted income (loss) from continuing operations before interest expense, interest income, income taxes, noncontrolling interests, net Adjusted income (loss) from continuing operations before interest expense, interest income, income taxes, noncontrolling interests, net Accelerated Share Repurchases, Date [Axis] Accelerated Share Repurchases, Date [Axis] Net Investment Hedging [Member] Net Investment Hedging [Member] Derivative Contract Type [Domain] Derivative Contract [Domain] 2030 Defined Benefit Plan, Expected Future Benefit Payment, Year Five All Individuals All Individuals [Member] All Operating Segments [Member] All Operating Segments [Member] Total of all operating segments Additions to properties and equipment Payments to Acquire Property, Plant, and Equipment Revenue Recognition and Customer Incentives Revenue Recognition Accounting Policy, Gross and Net Revenue Disclosure [Policy Text Block] Name Forgone Recovery, Individual Name Accumulated depreciation for cumulative construction-period interest Accumulated depreciation The cumulative amount of depreciation related to cumulative construction-period interest which has been capitalized. Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Other Asset Impairment Charges Other Asset Impairment Charges Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Amount Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Amount Effective Income Tax Rate Reconciliation, Foreign Currency Related Items, Amount Disposal Group Classification [Axis] Disposal Group Classification [Axis] Debt, Weighted Average Interest Rate Debt, Weighted Average Interest Rate Unrecorded Unconditional Purchase Obligation, Term Unrecorded Unconditional Purchase Obligation, Term Foreign Exchange [Member] Foreign Exchange [Member] Currency translation and other adjustments Goodwill, Foreign Currency Translation, Gain (Loss) Disposal Group, Including Discontinued Operation, Other Liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Income tax expense (benefit) included in consolidated financial statement [Abstract] Income Tax Expense (Benefit), Intraperiod Tax Allocation [Abstract] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule of Intangible Assets by Major Class [Table] Intangible Asset, Finite-Lived [Table] Supplier Finance Program [Domain] Supplier Finance Program [Domain] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Geographical [Axis] Geographical [Axis] Derivative Liabilities [Abstract] Derivative Liability [Abstract] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Foreign exchange transaction losses (gains), net (1) Gain (Loss), Foreign Currency Transaction, before Tax Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Asia Pacific [Member] Asia Pacific [Member] Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Weighted-Average Exercise Price (in dollars per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security 5.625% Notes Due February 2034 5.625% Notes Due February 2034 [Member] 5.625% Notes Due February 2034 Effective Income Tax Rate Reconciliation, GILTI, Percent Effective Income Tax Rate Reconciliation, GILTI, Percent Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Income Taxes Paid, Net [Abstract] Income Taxes Paid, Net [Abstract] Effects of cross border tax laws, net of credits Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] Government Assistance, Award Amount Government Assistance, Award Amount Earnings Per Share [Abstract] Earnings Per Share [Abstract] Other components of post-employment (benefit) cost, net Pension and Other Postretirement Benefits Cost (Reversal of Cost) Restructuring Plan [Axis] Restructuring Plan [Axis] Lessee, Operating Lease, Liability, Payments, Due Year Five Lessee, Operating Lease, Liability, to be Paid, Year Five Other (income) charges, net Other (income) charges, net Nonoperating Income (Expense) Effective Income Tax Rate Reconciliation, FDII, Percent Effective Income Tax Rate Reconciliation, FDII, Percent Adhesives Resins Disposal Group Adhesives Resins Disposal Group [Member] Adhesives Resins Disposal Group Divestiture Goodwill, Written off Related to Sale of Business Unit Gain (Loss) on Fair Value Hedges Recognized in Earnings Gain (Loss) on Fair Value Hedges Recognized in Earnings Defined benefit pension and other postretirement benefit plans [Abstract] Defined benefit pension and other postretirement benefit plans [Abstract] Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement Cash and cash equivalents, public equity, and other investments [Member] Cash and cash equivalents, public equity, and other investments [Member] Cash and cash equivalents, public equity, and other investments [Member] Construction in Progress [Member] Asset under Construction [Member] Other Accounts Payable, Other, Current Government Assistance, Type [Domain] Government Assistance, Type [Domain] Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Treasury Stock, Shares, Acquired Treasury Stock, Shares, Acquired Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Accelerated Share Repurchases, Date [Domain] Accelerated Share Repurchases, Date [Domain] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Award Timing Disclosures [Line Items] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Effective Income Tax Rate Reconciliation, Subpart F Income, Percent Effective Income Tax Rate Reconciliation, Subpart F Income, Percent Effective Income Tax Rate Reconciliation, Subpart F Income, Percent Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Service cost Defined Benefit Plan, Service Cost Measurement Frequency [Domain] Measurement Frequency [Domain] Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax STOCKHOLDERS' EQUITY Equity [Text Block] Effective Income Tax Rate Reconciliation, Tax Contingency, Other, Percent Effective Income Tax Rate Reconciliation, Tax Contingency, Other, Percent Deferred Deferred State and Local Income Tax Expense (Benefit) Net earnings attributable to Eastman Net Earnings Net earnings attributable to Eastman Net Income (Loss) Attributable to Parent ASSET IMPAIRMENTS AND RESTRUCTURING Restructuring, Impairment, and Other Activities Disclosure [Text Block] Schedule of Reconciliation of Income Taxes on Earnings from Continuing Operations at Federal Statutory Income Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Vesting periods, maximum (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred Stock, Shares Authorized Preferred Stock, Shares Authorized Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock State and other [Abstract] State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract] Adoption Date Trading Arrangement Adoption Date Acetate Tow Joint Venture [Member] Acetate Tow Joint Venture [Member] Name of investee, or group of investees for which combined disclosure is appropriate, in which the Entity has an investment in common stock accounted for under the equity method of accounting and for which certain information is required or determined to be disclosed. Specialty Plastics Product Line [Member] Specialty Plastics Product Line [Member] Specialty Plastics Product Line [Member] Contract with Customer, Asset, after Allowance for Credit Loss Contract with Customer, Asset, after Allowance for Credit Loss 5.0% Notes Due Aug 2029 5.0% Notes Due Aug 2029 [Member] 5.0% Notes Due Aug 2029 Great Britain Great Britain [Member] Great Britain 2021 Repurchase Program 2021 Repurchase Program [Member] 2021 Repurchase Program Customer Relationships [Member] Customer Relationships [Member] Other Comprehensive Income (Loss), Non-derivatives Qualifying as Hedges, before Tax [Abstract] Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract] Retained earnings at beginning of period Retained earnings at end of period Retained earnings Retained Earnings (Accumulated Deficit) Cross Currency Interest Rate Contract [Member] Cross Currency Interest Rate Contract [Member] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class [Table Text Block] Tabular disclosure of amortizable intangible assets, in total and by major class, including the gross carrying amount and accumulated amortization, as well as indefinite lived intangible assets in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. Fibers [Member] Fibers [Member] A component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. Class of Stock [Axis] Class of Stock [Axis] Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses) Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses) Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Interest payable [Member] Interest payable [Member] Interest payable [Member] Carrying value as of the balance sheet date of accrued interest payable on all forms of debt including trade payables, that has been incurred and is unpaid. Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Environmental Remediation [Member] Environmental Remediation [Member] Solutia [Member] Solutia [Member] Business combination executed by merger agreement. Other Deferred Tax Liabilities, Other Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Retirement Plan Type [Axis] Retirement Plan Type [Axis] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Other, net (2) Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Provision for (benefit from) deferred income taxes Deferred Income Tax Expense (Benefit) Lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Contract with Customer, Liability Contract with Customer, Liability All Adjustments to Compensation All Adjustments to Compensation [Member] Tax Credit Carryforward, Valuation Allowance Tax Credit Carryforward, Valuation Allowance Amendment Flag Amendment Flag Tax benefit of options exercised Share-Based Payment Arrangement, Expense, Tax Benefit Government incentives Government incentives, cash received Government incentives, cash received Shares reserved and available for issuance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Post Retirement Welfare Plans [Member] Other Postretirement Benefits Plan [Member] Schedule of US and Non-US Pension Plans Asset Target Allocation by Category Schedule of Allocation of Plan Assets [Table Text Block] Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Unrecorded Unconditional Purchase Obligation, Purchases Unrecorded Unconditional Purchase Obligation, Purchases Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent Schedule of Activity of Stock Option Awards Share-Based Payment Arrangement, Option, Activity [Table Text Block] 7.60% debentures due February 2027 [Member] Notes Due February 2027 [Member] Notes Due February 2027 [Member] 7.60% debentures due 2027 Shares used for earnings per share calculation, Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Inventory Write-down Inventory Write-down Cash Flow, Supplemental Disclosures [Text Block] Cash Flow, Supplemental Disclosures [Text Block] Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Earnings before interest and taxes Income (Loss) from Continuing Operations before Interest Expense, Interest Income, Income Taxes, Noncontrolling Interests, Net Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Options exercisable at period-end (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Concept not found: {http://fasb.org/us-gaap/2021-01-31}ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain Exercise Price Range [Domain] Segment Reporting [Abstract] Segment Reporting [Abstract] Voluntary employees' beneficiary association (VEBA) trust [Member] Voluntary employees' beneficiary association (VEBA) trust [Member] Voluntary employees' beneficiary association (VEBA) trust [Member] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 4.8% notes due September 2042 [Member] Notes Due 2042 [Member] 4.8% notes due 2042 Debt Disclosure [Abstract] Debt Disclosure [Abstract] Defined Benefit Plan by Plan Asset Categories [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Scenario [Domain] Scenario [Domain] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Unrecognized Tax Benefits, Interest on Income Taxes Expense Unrecognized Tax Benefits, Interest on Income Taxes Expense Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount All Other Countries All Other Countries [Member] All Other Countries Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Retirement Plan Name, Other Retirement Plan Name, Other [Member] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Miscellaneous receivables Income Taxes Receivable, Current 2031-2034 Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount Effective Income Tax Rate Reconciliation, Cross-Border Tax Effect, Amount SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Current liabilities Liability, Defined Benefit Plan, Current Dividends paid to stockholders Payments of Dividends Net loss on divested business and transaction costs Net loss on divested business and transaction costs Net loss on divested business and transaction costs Number Outstanding at end of period (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Change in cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Insider Trading Arrangements [Line Items] Exercise Prices of $76-$90 Exercise Prices of $81-$100 [Member] Exercise Prices of $81-$100 Non-Cash Charges [Member] Non-Cash Charges [Member] Represents non-cash and other charges to the restructuring reserve. Private Equity Securities [Member] Equity Securities [Member] Total liabilities Liabilities Defined Benefit Plan, Information about Plan Assets [Abstract] Defined Benefit Plan, Information about Plan Assets [Abstract] Currency [Axis] Currency [Axis] Expiring period of net operating loss carryforwards, minimum (in years) Operating Loss Carryforwards Expiring Period Minimum The minimum expiration period of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates. Other Nonoperating Income (Expense) [Member] Other Nonoperating Income (Expense) [Member] Product Concentration Risk [Member] Product Concentration Risk [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Health care cost trend [Abstract] Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] Other Alternative Investments [Member] Other Alternative Investments [Member] Investments in other alternative securities not classified. Fixed Income (US) [Member] Domestic Fixed Income Securities [Member] This element represents a domestic investment that provides a return in the form of fixed periodic payments and eventual return of principal at maturity. Total stockholders' equity before treasury stock Stockholders' Equity before Treasury Stock Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Net amount recognized, end of year Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Useful Life, Shorter of Lease Term or Asset Utility [Member]