Entity Central Index Key Other comprehensive income loss cash flow hedge gain loss pretax reclassification and pretax parent. Other comprehensive income loss cash flow hedge gain loss tax reclassification and tax parent. Other comprehensive income loss pre tax portion attributable to parent. Other comprehensive income loss tax portion attributable to parent. Comprehensive Income (Loss), Before Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), before Tax, Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), Tax, Portion Attributable to Noncontrolling Interest Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other comprehensive income (loss), pension and other postretirement benefit plans, foreign currency transaction and translation gain (loss), before tax. Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Foreign Currency Translation Gain (Loss) Arising During Period, Tax Other comprehensive income (loss) before cumulative effect before tax. Other comprehensive income (loss) before cumulative effect tax. Other comprehensive income loss reclassification adjustment from AOCI pension and other postretirement benefit plans for settlements gain loss before tax. Other comprehensive income loss reclassification adjustment from AOCI pension and other postretirement benefit plans for settlements gain loss tax. Operating and finance lease liability payments remainder of fiscal year. Operating and finance lease liability payments due year two. Operating and finance lease liability payments due year three. Operating and finance lease liability payments due year four. Operating and finance lease liability payments due year five. Operating and finance lease liability payments due after year five. Operating and finance lease liability undiscounted excess amount. Operating and finance lease liabilities. Build-to-suit lease obligation. Income (Loss) from Continuing Operations before Interest, Taxes, Depreciation, and Amortization, Net. Excludes non-operating pension, exchange gains/ losses, asset impairments, restructuring charges, and gain on sale of assets /business. Corporate and other expenses. Non-operating pension and other post-retirement employee benefit income. Foreign currency transaction gain (loss), including gain (loss) on derivative. Restructuring charges asset-related and other charges. Gain (loss) on sale of assets and businesses included in other income (expense) net. Transaction fees. Employee separation asset related and other charges including impairments net. Intercompany Interest Income (Expense), Net Intercompany receivables. Investments in Subsidiaries Intercompany Notes Receivable Intercompany payables. Intercompany Notes Payable Payments for (Proceeds from) Intercompany Investing Activities Payments for proceeds from intercompany financing activities. Document and Entity Information [Abstract] Document And Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Current Reporting Status Entity Current Reporting Status Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Document Type Document Type Trading Symbol Trading Symbol Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Shell Company Entity Shell Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Income Statement [Abstract] Net sales Revenue From Contract With Customer Excluding Assessed Tax Cost of goods sold Cost Of Goods And Services Sold Gross profit Gross Profit Selling, general, and administrative expense Selling General And Administrative Expense Research and development expense Research And Development Expense Restructuring, asset-related, and other charges Restructuring Charges Asset Related And Other Charges Total other operating expenses Operating Expenses Equity in earnings of affiliates Income Loss From Equity Method Investments Interest expense, net Interest Expense Loss on extinguishment of debt Gains Losses On Extinguishment Of Debt Other income, net Other Nonoperating Income Expense Income before income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Provision for income taxes Income Tax Expense Benefit Net income Profit Loss Less: Net income attributable to non-controlling interests Net Income Loss Attributable To Noncontrolling Interest Net income attributable to Chemours Net Income Loss Per share data Earnings Per Share [Abstract] Basic earnings per share of common stock Earnings Per Share Basic Diluted earnings per share of common stock Earnings Per Share Diluted Other Comprehensive Income (Loss), Pensions and Other Postretirement Benefit Plans, Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Other comprehensive income loss reclassification adjustment from AOCI pension and other postretirement benefit plans for curtailment gain loss net of tax. Other comprehensive income (loss) before cumulative effect net tax. Statement Of Income And Comprehensive Income [Abstract] Net income, pre-tax Net Income, tax Other comprehensive income (loss): Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Hedging activities: Derivative Instruments And Hedging Activities Disclosure [Abstract] Unrealized (loss) gain on net investment hedge, pre-tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax Unrealized (loss) gain on net investment hedge, tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax Unrealized (loss) gain on net investment hedge, after tax Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax Unrealized gain on cash flow hedge, pre-tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax Unrealized gain on cash flow hedge, tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax Unrealized gain on cash flow hedge, after-tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax Reclassifications to net income - cash flow hedge, pre-tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Pretax Reclassification And Pre Tax Parent Reclassifications to net income - cash flow hedge, tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Tax Reclassification And Tax Parent Reclassifications to net income - cash flow hedge, after-tax Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent Hedging activities, net, pre-tax Other Comprehensive Income Loss Pre Tax Portion Attributable To Parent Hedging activities, net, tax Other Comprehensive Income Loss Tax Portion Attributable To Parent Hedging activities, net, after-tax Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent Cumulative translation adjustment, pre-tax Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax Cumulative translation adjustment, tax Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax Cumulative translation adjustment, after-tax Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax Defined benefit plans: Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease [Abstract] Net loss, pre-tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax Net loss, tax Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax Net loss, after-tax Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax Prior service benefit, pre-tax Other Comprehensive Income Defined Benefit Plan Net Prior Service Cost Credit Arising During Period Before Tax Prior service benefit, tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Benefit Plan Improvement Tax Effect Prior service benefit, after-tax Other Comprehensive Income Defined Benefit Plan Net Prior Service Costs Credit Arising During Period Net Of Tax Effect of foreign exchange rates, pre-tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Foreign Currency Transaction And Translation Gain Loss Before Tax Effect of foreign exchange rates, tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Foreign Currency Translation Gain Loss Arising During Period Tax Effect of foreign exchange rates, after-tax Other Comprehensive Income Loss Pensions And Other Postretirement Benefit Plans Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax Amortization of prior service gain, pre- tax Other Comprehensive Income Loss Amortization Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Before Tax Amortization of prior service gain, tax Other Comprehensive Income Loss Amortization Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax Amortization of prior service gain, after-tax Other Comprehensive Income Loss Amortization Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax Amortization of actuarial loss, pre-tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax Amortization of actuarial loss, tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax Amortization of actuarial loss, after-tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax Settlement loss, pre-tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Settlements Gain Loss Before Tax Settlement loss, tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Settlements Gain Loss Tax Settlement loss, after-tax Other Comprehensive Income Loss Reclassification Adjustment From A O C I Pension And Other Postretirement Benefit Plans For Settlements Gain Loss Net Of Tax Defined benefit plans, net, pre-tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax Defined benefit plans, net, tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax Defined benefit plans, net, after-tax Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax Other comprehensive income, pre-tax Other Comprehensive Income Loss Before Cumulative Effect Before Tax Other comprehensive income, tax Other Comprehensive Income Loss Before Cumulative Effect Tax Other comprehensive income, after-tax Other Comprehensive Income Loss Before Cumulative Effect Net Tax Comprehensive income, pre-tax Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest Comprehensive income, tax Comprehensive Income Loss Tax Including Portion Attributable To Noncontrolling Interest Comprehensive income, after-tax Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest Less: Comprehensive income attributable to non-controlling interests, pre-tax Comprehensive Income Loss Before Tax Portion Attributable To Noncontrolling Interest Less: Comprehensive income attributable to non-controlling interests, tax Comprehensive Income Loss Tax Portion Attributable To Noncontrolling Interest Less: Comprehensive income attributable to non-controlling interests, after-tax Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest Comprehensive income attributable to Chemours, pre-tax Comprehensive Income Loss Before Tax Portion Attributable To Parent Comprehensive income attributable to Chemours, tax Comprehensive Income Loss Tax Portion Attributable To Parent Comprehensive income attributable to Chemours, after-tax Comprehensive Income Net Of Tax Statement Of Financial Position [Abstract] Assets Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts and notes receivable, net Receivables Net Current Inventories Inventory Net Prepaid expenses and other Prepaid Expense Current Total current assets Assets Current Property, plant, and equipment Property Plant And Equipment Gross Less: Accumulated depreciation Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property, plant, and equipment, net Property Plant And Equipment Net Operating lease right-of-use assets Operating Lease Right Of Use Asset Goodwill and other intangible assets, net Intangible Assets Net Including Goodwill Investments in affiliates Equity Method Investments Other assets Other Assets Noncurrent Total assets Assets Liabilities Liabilities [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Current maturities of long-term debt Long Term Debt Current Other accrued liabilities Accrued Liabilities Current Total current liabilities Liabilities Current Long-term debt, net Long Term Debt Noncurrent Operating lease liabilities Operating Lease Liability Noncurrent Deferred income taxes Deferred Tax Liabilities Noncurrent Other liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingent liabilities Commitments And Contingencies Equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest [Abstract] Common stock (par value $0.01 per share; 810,000,000 shares authorized; 188,801,201 shares issued and 163,481,966 shares outstanding at June 30, 2019; 187,204,567 shares issued and 170,780,474 shares outstanding at December 31, 2018) Common Stock Value Treasury stock, at cost (25,319,235 shares at June 30, 2019; 16,424,093 shares at December 31, 2018) Treasury Stock Common Value Additional paid-in capital Additional Paid In Capital Retained earnings Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total Chemours stockholders’ equity Stockholders Equity Non-controlling interests Minority Interest Total equity Stockholders Equity Including Portion Attributable To Noncontrolling Interest Total liabilities and equity Liabilities And Stockholders Equity Common stock, shares authorized (in shares) Common Stock Shares Authorized Common stock , par value (USD per share) Common Stock Par Or Stated Value Per Share Common stock, shares Issued (in shares) Common Stock Shares Issued Common stock, shares outstanding (in shares) Common Stock Shares Outstanding Treasury stock (in shares) Treasury Stock Shares Stock issued during period, additional. Stock issued during period value additional. Adjustments to additional paid in capital cancellation of unissued stock awards withheld to cover taxes. Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock [Member] Common Stock [Member] Treasury Stock [Member] Treasury Stock [Member] Additional Paid-in Capital [Member] Additional Paid In Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive (Loss) Income [Member] Accumulated Other Comprehensive Income [Member] Non-controlling Interests [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Total stockholders' equity, beginning balance Shares, beginning balance Shares Outstanding Common stock issued - compensation plans Stock Issued During Period Value Additional Common stock issued - compensation plans (in shares) Stock Issued During Period Additional Exercise of stock options, net Stock Issued During Period Value Stock Options Exercised Exercise of stock options, net (in shares) Stock Issued During Period Shares Stock Options Exercised Purchases of treasury stock, at cost Treasury Stock Value Acquired Cost Method Purchases of treasury stock at cost (in shares) Treasury Stock Shares Acquired Shares issued under employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Shares issued under employee stock purchase plan (in shares) Stock Issued During Period Shares Employee Stock Purchase Plans Stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Cancellation of unissued stock awards withheld to cover taxes Adjustments To Additional Paid In Capital Cancellation Of Unissued Stock Awards Withheld To Cover Taxes Net income Dividends Dividends Cash Other comprehensive income (loss) Other activity, net Stockholders Equity Other Total stockholders' equity, ending balance Shares, ending balance Dividends per share declared during period Common Stock Dividends Per Share Declared Defined benefit plan contributions. Change in capital expenditures incurred but not yet paid. Statement Of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net income to cash (used for) provided by operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation Depletion And Amortization Gain on sales of assets and businesses Gain Loss On Disposition Of Assets1 Equity in earnings of affiliates, net Income Loss From Equity Method Investments Net Of Dividends Or Distributions Loss on extinguishment of debt Amortization of debt issuance costs and issue discounts Amortization Of Financing Costs And Discounts Deferred tax provision Deferred Income Taxes And Tax Credits Stock-based compensation expense Share Based Compensation Net periodic pension cost (income) Defined Benefit Plan Net Periodic Benefit Cost Defined benefit plan contributions Defined Benefit Plan Contributions Other operating charges and credits, net Other Operating Activities Cash Flow Statement Decrease (increase) in operating assets: Increase Decrease In Operating Assets [Abstract] Accounts and notes receivable, net Increase Decrease In Accounts And Notes Receivable Inventories and other operating assets Increase Decrease In Inventories And Other Operating Assets (Decrease) increase in operating liabilities: Increase Decrease In Operating Liabilities [Abstract] Accounts payable and other operating liabilities Increase Decrease In Accounts Payable And Other Operating Liabilities Cash (used for) provided by operating activities Net Cash Provided By Used In Operating Activities Cash flows from investing activities Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property, plant, and equipment Payments To Acquire Property Plant And Equipment Acquisition of business, net Payments To Acquire Businesses Net Of Cash Acquired Proceeds from sales of assets and businesses, net Proceeds From Sale Of Productive Assets Foreign exchange contract settlements, net Payments For Proceeds From Derivative Instrument Investing Activities Cash used for investing activities Net Cash Provided By Used In Investing Activities Cash flows from financing activities Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from issuance of debt, net Proceeds From Issuance Of Long Term Debt Proceeds from revolving loan Proceeds From Long Term Lines Of Credit Debt repayments Repayments Of Long Term Debt Payments related to extinguishment of debt Payments Of Debt Extinguishment Costs Payments of debt issuance costs Payments Of Debt Issuance Costs Purchases of treasury stock, at cost Payments For Repurchase Of Common Stock Proceeds from exercised stock options, net Proceeds From Stock Options Exercised Payments related to tax withholdings on vested stock awards Payments Related To Tax Withholding For Share Based Compensation Payments of dividends Payments Of Dividends Cash used for financing activities Net Cash Provided By Used In Financing Activities Effect of exchange rate changes on cash and cash equivalents Effect Of Exchange Rate On Cash And Cash Equivalents Decrease in cash and cash equivalents Cash And Cash Equivalents Period Increase Decrease Cash and cash equivalents at January 1, Cash and cash equivalents at June 30, Non-cash investing and financing activities: Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Changes in property, plant, and equipment included in accounts payable Change In Capital Expenditures Incurred But Not Yet Paid Obligations incurred under build-to-suit lease arrangement Capital Lease Obligations Incurred Organization Consolidation And Presentation Of Financial Statements [Abstract] Background, Description of the Business, and Basis of Presentation Business Description And Basis Of Presentation [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements And Changes In Accounting Principles [Text Block] Significant transaction. Significant transaction. Significant Transaction [Abstract] Significant Transaction Significant Transaction [Text Block] Revenue From Contract With Customer [Abstract] Net Sales Revenue From Contract With Customer [Text Block] Restructuring And Related Activities [Abstract] Restructuring, Asset-Related, and Other Charges Restructuring And Related Activities Disclosure [Text Block] Other Income And Expenses [Abstract] Other Income, Net Other Income And Other Expense Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Earnings Per Share of Common Stock Earnings Per Share [Text Block] Receivables [Abstract] Accounts and Notes Receivable, Net Loans Notes Trade And Other Receivables Disclosure [Text Block] Inventory Net [Abstract] Inventories Inventory Disclosure [Text Block] Property Plant And Equipment [Abstract] Property, Plant, and Equipment, Net Property Plant And Equipment Disclosure [Text Block] Leases [Abstract] Leases Leases Of Lessee Disclosure [Text Block] Equity Method Investments And Joint Ventures [Abstract] Investments in Affiliates Equity Method Investments Disclosure [Text Block] Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] Other Assets Other Assets Disclosure [Text Block] Payables And Accruals [Abstract] Accounts Payable Accounts Payable And Accrued Liabilities Disclosure [Text Block] Other Accrued Liabilities Accounts Payable Accrued Liabilities And Other Liabilities Disclosure Current [Text Block] Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Other Liabilities Disclosure [Abstract] Other Liabilities Other Liabilities Disclosure [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingent Liabilities Commitments And Contingencies Disclosure [Text Block] Stockholders Equity Note [Abstract] Equity Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock-based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Financial Instruments Derivative Instruments And Hedging Activities Disclosure [Text Block] General Discussion Of Pension And Other Postretirement Benefits [Abstract] Long-term Employee Benefits Pension And Other Postretirement Benefits Disclosure [Text Block] Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Event Subsequent Events [Text Block] Guarantor Condensed Consolidating Financial Information Condensed Financial Statements [Text Block] Recent Accounting Pronouncements New Accounting Pronouncements Policy Policy [Text Block] Summary of Disaggregation of Net Sales by Geographical Region and Product Group Disaggregation Of Revenue Table [Text Block] Summary of Contract Balances from Contracts with Customers Contract With Customer Asset And Liability Table [Text Block] Schedule of Restructuring Program Schedule Of Restructuring And Related Costs [Text Block] Schedule of Restructuring Charges Schedule Of Restructuring Reserve By Type Of Cost [Text Block] Components of Other Income Interest And Other Income Table [Text Block] Schedule of Earnings Per Share, Basic and Diluted Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule of Anti-dilutive Securities Excluded from Computation of Earnings Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule Of Accounts Notes Loans And Financing Receivable [Text Block] Schedule of Inventories Schedule Of Inventory Current Table [Text Block] Summary of Property, Plant, and Equipment, Net Property Plant And Equipment [Text Block] Schedule of lease assets and lease liabilities and their balance sheet location. Schedule of Lease Assets and Lease Liabilities and their Balance Sheet Location Schedule Of Lease Assets And Lease Liabilities And Their Balance Sheet Location Table [Text Block] Schedule of Components of Company's Lease Cost Lease Cost Table [Text Block] Schedule of cash flows related to leases. Schedule of Cash Flows Related to Company's Leases Schedule Of Cash Flows Related To Leases Table [Text Block] Schedule of weighted-average term and weighted-average discount rate for leases. Schedule of Weighted-Average Term and Weighted-Average Discount Rate For Company's Leases Schedule Of Weighted Average Term And Weighted Average Discount Rate For Leases Table [Text Block] Lease liability maturity. Schedule of Company's Lease Liabilities' Maturities for Next Five Years and Thereafter Lease Liability Maturity Table [Text Block] Schedule of future minimum lease payments for operating and capital leases. Schedule of Company's Lease Liabilities' Maturities for Next Five Years and Thereafter under Previous Lease Accounting Standard Schedule Of Future Minimum Lease Payments For Operating And Capital Leases Table [Text Block] Schedule of Other Assets Schedule Of Other Assets Table [Text Block] Schedule of Accounts Payable Schedule Of Accounts Payable And Accrued Liabilities Table [Text Block] Schedule of Other Accrued Liabilities Schedule Of Accrued Liabilities Table [Text Block] Components of Debt Schedule Of Debt Instruments [Text Block] Schedule of Contractual Debt Principal Maturities Schedule Of Maturities Of Long Term Debt Table [Text Block] Estimated Fair Values of Senior Debt Issues Schedule Of Carrying Values And Estimated Fair Values Of Debt Instruments Table [Text Block] Schedule of Other Liabilities Other Noncurrent Liabilities Table [Text Block] Schedule of Components of Accrued Litigation Schedule Of Loss Contingencies By Contingency [Text Block] Schedule of short and long-term components of accrued litigation and balance sheet locations. Schedule of Current and Long-term Components of Accrued Litigation and Balance Sheet Locations Schedule Of Short And Long Term Components Of Accrued Litigation And Balance Sheet Locations Table [Text Block] Schedule of Components of Environmental Remediation Liabilities Schedule Of Environmental Loss Contingencies By Site [Text Block] Schedule of short and long-term components of environmental remediation accrual and balance sheet locations. Schedule of Current and Long-term Components of Environmental Remediation Liabilities and Balance Sheet Locations Schedule Of Short And Long Term Components Of Environmental Remediation Accrual And Balance Sheet Locations Table [Text Block] Schedule of Stock Options Weighted Average Assumptions Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Schedule of derivative assets and liabilities at fair value. Schedule of Derivative Assets and Liabilities At Fair Value Schedule Of Derivative Assets And Liabilities At Fair Value Table [Text Block] Schedule of Pre-tax Charge the Fair Value of Derivative Assets and Liabilities Schedule Of Derivative Instruments In Statement Of Financial Position Fair Value [Text Block] Schedules of Net Periodic Pension (Cost) Income Schedule Of Net Benefit Costs Table [Text Block] Schedule of Segment Information Schedule Of Segment Reporting Information By Segment [Text Block] Reconciliation of EBITDA from segments to consolidated net income (loss) before income taxes. Reconciliation of Segment Adjusted EBITDA from Segments to Consolidated Net Income Loss Before Income Taxes Reconciliation Of E B I T D A From Segments To Consolidated Net Income Loss Before Income Taxes Table [Text Block] Condensed Consolidating Statements of Comprehensive Income Schedule Of Condensed Income Statement Table [Text Block] Condensed Consolidating Balance Sheets Schedule Of Condensed Balance Sheet Table [Text Block] Condensed Consolidating Statements of Cash Flows Schedule Of Condensed Cash Flow Statement Table [Text Block] Number of reportable segments Number Of Reportable Segments Accounting Policies [Abstract] New Accounting Pronouncements Or Change In Accounting Principle [Table] New Accounting Pronouncements Or Change In Accounting Principle [Table] Adjustments for New Accounting Pronouncements Adjustments For New Accounting Pronouncements [Axis] Type of Adoption Type Of Adoption [Member] ASU 2016-02 [Member] Accounting Standards Update201602 [Member] Property, Plant and Equipment, Type Property Plant And Equipment By Type [Axis] Property, Plant and Equipment, Type Property Plant And Equipment Type [Domain] Office space. Office Space [Member] Office Space [Member] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] Operating lease right-of-use assets Operating lease liabilities Operating Lease Liability Number of acre of land for sale. Significant transaction. Significant transaction. Significant Transaction [Table] Significant Transaction [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] Linden, new jersey. Linden, New Jersey [Member] Linden N J [Member] Significant Transaction [Line Items] Significant Transaction [Line Items] Number of acre of land for sale Number Of Acre Of Land For Sale Recognized gain on sale of land Net cash proceeds of transaction Environmental remediation activities amount Environmental Remediation Expense Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Topic 606 [Member] Accounting Standards Update201409 [Member] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Axis] Timing of Transfer of Good or Service Timing Of Transfer Of Good Or Service [Domain] Transferred at a Point in Time [Member] Transferred At Point In Time [Member] North America [Member] North America [Member] Asia Pacific [Member] Asia Pacific [Member] Europe, the Middle East, and Africa [Member] E M E A [Member] Latin America [Member] Latin America [Member] Segments Statement Business Segments [Axis] Segments Segment [Domain] Fluoroproducts. Fluoroproducts [Member] Fluoroproducts [Member] Chemical solutions. Chemical Solutions [Member] Chemical Solutions [Member] Titanium technologies. Titanium Technologies [Member] Titanium Technologies [Member] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Fluorochemicals. Fluorochemicals [Member] Fluorochemicals [Member] Fluoropolymers. Fluoropolymers [Member] Fluoropolymers [Member] Mining Solutions. Mining Solutions [Member] Mining Solutions [Member] Performance chemicals and intermediates. Performance Chemicals and Intermediates [Member] Performance Chemicals And Intermediates [Member] Titanium dioxide and other minerals. Titanium Dioxide and Other Minerals [Member] Titanium Dioxide And Other Minerals [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Disaggregation of Net Sales Accounts receivable - trade, net Accounts Notes And Loans Receivable Net Current Customer rebates Contract With Customer Refund Liability Current Trade notes receivable Notes And Loans Receivable Net Current Allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Current Contract asset balances Contract With Customer Asset Net Capitalized costs Capitalized Contract Cost Net Remaining performance obligations Revenue Remaining Performance Obligation Revenue, practical expedient, financing component Revenue Practical Expedient Financing Component Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Topic 606 [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Percentage of remaining performance obligations as revenue Revenue Remaining Performance Obligation Percentage Remaining performance obligations original expected period Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 Decommissioning and other charges. Restructuring and other charges. Asset related and other charges related to restructuring. Employee separation charges Severance Costs1 Decommissioning and other charges Decommissioning And Other Charges Total restructuring and other charges Restructuring And Other Charges Asset-related and other charges Asset Related And Other Charges Related To Restructuring Total restructuring, asset-related, and other charges Schedule Of Restructuring And Related Costs [Table] Schedule Of Restructuring And Related Costs [Table] Consolidation Items Consolidation Items [Axis] Consolidation Items Consolidation Items [Domain] Operating Segments [Member] Operating Segments [Member] Corporate and Other [Member] Corporate Non Segment [Member] Restructuring Type Restructuring Cost And Reserve [Axis] Type of Restructuring Type Of Restructuring [Domain] Plant and Product Line Closures [Member] Facility Closing [Member] Restructuring Plan Restructuring Plan [Axis] Restructuring Plan Restructuring Plan [Domain] Restructuring program two thousand seventeen. 2017 Restructuring Program [Member] Restructuring Program Two Thousand Seventeen [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost And Reserve [Line Items] Restructuring and other charges Restructuring cost excluding non cash assets charges. Decommissioning and dismantling costs [Member] Decommissioning Costs [Member] Decommissioning And Dismantling Costs [Member] Additional Restructuring Charges [Member] Other Restructuring [Member] Niagara Falls, New York [Member] Niagara Falls, NY [Member] Niagara Falls New York [Member] Deepwater, New Jersey. Deepwater, New Jersey [Member] Deepwater New Jersey [Member] Corporate function efforts. Corporate Function Efforts [Member] Corporate Function Efforts [Member] Voluntary separation program. Voluntary Separation Program [Member] Voluntary Separation Program [Member] Voluntary separation program one-time financial incentives. Voluntary Separation Program One-Time Financial Incentives [Member] Voluntary Separation Program One Time Financial Incentives [Member] Restructuring program two thousand eighteen. 2018 Restructuring Program [Member] Restructuring Program Two Thousand Eighteen [Member] Restructuring, asset-related and other charges Additional restructuring charges expected to be incurred Restructuring And Related Cost Expected Cost Remaining1 Restructuring costs, excluding non-cash asset-related charges Restructuring Cost Excluding Non Cash Assets Charges Restructuring charges incurred Restructuring Charges Employee separation and asset related charges, net. Employee separation and asset related charges Employee Separation And Asset Related Charges Net Number of employees to be separated by end of 2018 Restructuring And Related Cost Expected Number Of Positions Eliminated Accrual of termination benefits recognized Restructuring And Related Cost Incurred Cost Aggregate restructuring costs Restructuring Costs Restructuring credits to income. Restructuring Charges [Abstract] Restructuring Program 2015 [Member] 2015 Global Restructuring Program [Member] Restructuring Program2015 [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve Roll Forward Restructuring reserve, beginning Restructuring Reserve Credits to income Restructuring Credits To Income Payments Payments For Restructuring Restructuring reserve, ending Leasing, Contract Services and Other Revenue Leasing, contract services and miscellaneous income Leasing Contract Services And Other Revenue Royalty income Royalty Income Nonoperating Gain on sales of assets and businesses Gain Loss On Sale Of Assets And Businesses Included In Other Income Expense Net Exchange (losses) gains, net Foreign Currency Transaction Gain Loss Including Gain Loss On Derivative Non-operating pension and other post-retirement employee benefit income Non Operating Pension And Other Post Retirement Employee Benefit Income Total other income, net 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 [Line Items]. Provides a description and amount of each detailed component of other income and expenses. May include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income and expense items. [Table] Other Income And Expenses [Table] Other Income And Expenses [Table] European Union [Member] European Union [Member] Fluorinated greenhouse gas. Fluorinated Greenhouse Gas [Member] Fluorinated Greenhouse Gas [Member] Linden New Jersey sites. Linden, New Jersey Sites [Member] Linden New Jersey Sites [Member] Component of Other Income [Line Items] Component Of Other Income And Expenses [Line Items] Gain on sale of asset Gain Loss On Sale Of Properties Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Range Range [Axis] Range Range [Member] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Effective income tax rate Effective Income Tax Rate Continuing Operations Income tax benefits related to windfalls on share-based payments Employee Service Share Based Compensation Tax Benefit From Compensation Expense Additional income tax expense related to valuation allowance on deferred tax assets Valuation Allowance Deferred Tax Asset Change In Amount Numerator: Earnings Per Share Basic Other Disclosures [Abstract] Net income attributable to Chemours Denominator: Earnings Per Share Diluted Other Disclosures [Abstract] Weighted-average number of common shares outstanding - basic Weighted Average Number Of Shares Outstanding Basic Dilutive effect of the Company’s employee compensation plans Weighted Average Number Diluted Shares Outstanding Adjustment Weighted-average number of common shares outstanding - diluted Weighted Average Number Of Diluted Shares Outstanding Average number of stock options Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Taxes Receivable, Other Than Income Taxes, Net, Current Accounts receivable - trade, net Accounts Receivable Net Current VAT, GST and other taxes Taxes Receivable Other Than Income Taxes Net Current Other receivables Total accounts and notes receivable, net Schedule Of Accounts Notes Loans And Financing Receivable [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Receivable Type Accounts Notes Loans And Financing Receivable By Receivable Type [Axis] Receivable Receivable Type [Domain] Trade Notes Receivable [Member] Notes Receivable [Member] Accounts Notes And Loans Receivable [Line Items] Accounts Notes And Loans Receivable [Line Items] Allowance for doubtful accounts receivable Bad debt expense Provision For Doubtful Accounts Finished products Inventory Finished Goods Semi-finished products Inventory Work In Process Raw materials, stores, and supplies Inventory Raw Materials And Supplies Inventories before LIFO adjustment Inventory Gross Less: Adjustment of inventories to LIFO basis Inventory L I F O Reserve Total inventories LIFO inventory amount L I F O Inventory Amount Percentage of LIFO inventory Percentage Of L I F O Inventory Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Equipment [Member] Equipment [Member] Building [Member] Building [Member] Construction-in-progress [Member] Construction In Progress [Member] Land [Member] Land [Member] Mineral rights [Member] Mining Properties And Mineral Rights [Member] Property Plant And Equipment [Line Items] Property Plant And Equipment [Line Items] Property, plant and equipment, gross Less: Accumulated depreciation Build to suit lease asset. Depreciation expense Depreciation Build to suit lease assets Build To Suit Lease Asset Finance leased assets gross. Finance leased assets, gross Finance Leased Assets Gross Finance lease, asset Finance Lease Right Of Use Asset Finance lease, liability Finance Lease Liability Leases agreements initial leases terms. Lessee Lease Description [Table] Lessee Lease Description [Table] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Lease agreements initial terms Leases Agreements Initial Leases Terms Operating lease term of contract Lessee Operating Lease Term Of Contract Lease assets. Lease assets. Lease liabilities. Lease liabilities, current. Current lease liabilities. Lease liabilities, non-current. Non-current lease liabilities, lease liabilities. Lease assets: Lease Assets [Abstract] Finance lease assets, net Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List Total lease assets Lease Assets Lease liabilities: Lease Liabilities [Abstract] Current: Lease Liabilities Current [Abstract] Operating lease liabilities Operating Lease Liability Current Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease Liability Current Statement Of Financial Position Extensible List Finance lease liabilities Finance Lease Liability Current Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Finance Lease Liability Current Statement Of Financial Position Extensible List Total current lease liabilities Current Lease Liabilities Non-current: Lease Liabilities Non Current [Abstract] Finance lease liabilities Finance Lease Liability Noncurrent Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List Total non-current lease liabilities Non Current Lease Liabilities Total lease liabilities Lease Liabilities Operating lease cost Operating Lease Cost Short-term lease cost Short Term Lease Cost Variable lease cost Variable Lease Cost Total lease cost Lease Cost Finance lease cost. Total cost associated with the company’s finance leases Finance Lease Cost Cash paid for amounts included in the measurement of lease liabilities. Non cash lease liabilities activity abstract. Cash paid for amounts included in the measurement of lease liabilities: Cash Paid For Amounts Included In The Measurement Of Lease Liabilities [Abstract] Operating cash flows from operating leases Operating Lease Payments Non-cash lease liabilities activity: Non Cash Lease Liabilities Activity [Abstract] Leased assets obtained in exchange for new operating lease liabilities Right Of Use Asset Obtained In Exchange For Operating Lease Liability Leased assets obtained in exchange for new finance lease liabilities Right Of Use Asset Obtained In Exchange For Finance Lease Liability Total cash flows associated with the company’s finance leases Finance Lease Principal Payments Weighted-average remaining lease term. Weighted-average discount rate. Weighted-average remaining lease term (years): Weighted Average Remaining Lease Term [Abstract] Operating leases Operating Lease Weighted Average Remaining Lease Term1 Finance leases Finance Lease Weighted Average Remaining Lease Term1 Weighted-average discount rate: Weighted Average Discount Rate [Abstract] Operating leases Operating Lease Weighted Average Discount Rate Percent Finance leases Finance Lease Weighted Average Discount Rate Percent Operating and finance lease liability payments due. Operating Leases Operating Lease Liabilities Payments Due [Abstract] Remainder of 2019 Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2020 Lessee Operating Lease Liability Payments Due Year Two 2021 Lessee Operating Lease Liability Payments Due Year Three 2022 Lessee Operating Lease Liability Payments Due Year Four 2023 Lessee Operating Lease Liability Payments Due Year Five Thereafter Lessee Operating Lease Liability Payments Due After Year Five Total lease payments Lessee Operating Lease Liability Payments Due Less: Imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Present value of lease liabilities Finance Leases Finance Lease Liabilities Payments Due [Abstract] Remainder of 2019 Finance Lease Liability Payments Remainder Of Fiscal Year 2020 Finance Lease Liability Payments Due Year Two 2021 Finance Lease Liability Payments Due Year Three 2022 Finance Lease Liability Payments Due Year Four 2023 Finance Lease Liability Payments Due Year Five Thereafter Finance Lease Liability Payments Due After Year Five Total lease payments Finance Lease Liability Payments Due Less: Imputed interest Finance Lease Liability Undiscounted Excess Amount Present value of lease liabilities Operating and finance lease liabilities payments due. Operating and Finance Leases, Total Operating And Finance Lease Liabilities Payments Due [Abstract] Remainder of 2019 Operating And Finance Lease Liability Payments Remainder Of Fiscal Year 2020 Operating And Finance Lease Liability Payments Due Year Two 2021 Operating And Finance Lease Liability Payments Due Year Three 2022 Operating And Finance Lease Liability Payments Due Year Four 2023 Operating And Finance Lease Liability Payments Due Year Five Thereafter Operating And Finance Lease Liability Payments Due After Year Five Total lease payments Operating And Finance Lease Liability Payments Due Less: Imputed interest Operating And Finance Lease Liability Undiscounted Excess Amount Present value of lease liabilities Operating And Finance Lease Liabilities Operating and capital leases future minimum payments due. Operating and capital leases future minimum payments due current. Operating and capital leases future minimum payments due in two years. Operating and capital leases future minimum payments due in three years. Operating and capital leases future minimum payments due in four years. Operating and capital leases future minimum payments due in five years. Operating and capital leases future minimum payments due thereafter. Operating Leases Operating Leases Future Minimum Payments Due [Abstract] 2019 Operating Leases Future Minimum Payments Due Current 2020 Operating Leases Future Minimum Payments Due In Two Years 2021 Operating Leases Future Minimum Payments Due In Three Years 2022 Operating Leases Future Minimum Payments Due In Four Years 2023 Operating Leases Future Minimum Payments Due In Five Years Thereafter Operating Leases Future Minimum Payments Due Thereafter Total lease payments Operating Leases Future Minimum Payments Due Finance Leases Capital Leases Future Minimum Payments Due [Abstract] 2019 Capital Leases Future Minimum Payments Due Current 2020 Capital Leases Future Minimum Payments Due In Two Years 2021 Capital Leases Future Minimum Payments Due In Three Years 2022 Capital Leases Future Minimum Payments Due In Four Years 2023 Capital Leases Future Minimum Payments Due In Five Years Thereafter Capital Leases Future Minimum Payments Due Thereafter Total lease payments Capital Leases Future Minimum Payments Due Operating and capital leases future minimum payments due. Operating and Finance Leases, Total Operating And Capital Leases Future Minimum Payments Due [Abstract] 2019 Operating And Capital Leases Future Minimum Payments Due Current 2020 Operating And Capital Leases Future Minimum Payments Due In Two Years 2021 Operating And Capital Leases Future Minimum Payments Due In Three Years 2022 Operating And Capital Leases Future Minimum Payments Due In Four Years 2023 Operating And Capital Leases Future Minimum Payments Due In Five Years Thereafter Operating And Capital Leases Future Minimum Payments Due Thereafter Total lease payments Operating And Capital Leases Future Minimum Payments Due Build to suit lease project costs paid by third party owner lessor. Build to suit lease area of land. Discovery Hub. Discovery Hub [Member] Discovery Hub [Member] Build to suit lease area of land Build To Suit Lease Area Of Land Build to suit lease project costs paid by third party owner lessor Build To Suit Lease Project Costs Paid By Third Party Owner Lessor Schedule Of Equity Method Investments [Table] Schedule Of Equity Method Investments [Table] Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Equity Method Investee [Member] Equity Method Investee [Member] Investments in Affiliates Schedule Of Equity Method Investments [Line Items] Net sales Proceeds From Sale Of Equity Method Investments Purchases Payments To Acquire Equity Method Investments Dividends Equity Method Investment Dividends Or Distributions Capitalized repair and maintenance costs. Capitalized repair and maintenance costs Capitalized Repair And Maintenance Costs Pension assets Defined Benefit Plan Assets For Plan Benefits Noncurrent Deferred income taxes Deferred Tax Assets Liabilities Net Noncurrent Miscellaneous Other Assets Miscellaneous Noncurrent Total other assets Trade payables Accounts Payable Trade Current VAT and other payables Taxes Payable Current Total accounts payable Customer rebate liability, current. Accrued Liabilities, Current [Abstract] Accrued Liabilities Current [Abstract] Compensation and other employee-related costs Employee Related Liabilities Current Employee separation costs Restructuring Reserve Current Accrued litigation Litigation Reserve Current Environmental remediation Accrued Environmental Loss Contingencies Current Income taxes Accrued Income Taxes Current Customer rebates Customer Rebate Liability Current Deferred income Deferred Revenue Current Accrued interest Interest Payable Current Miscellaneous Other Accrued Liabilities Current Total other accrued liabilities Debt Instrument [Table] Debt Instrument [Table] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Senior unsecured notes six point six two five due may two thousand twenty three. 6.625% Senior Unsecured Notes Due May 2023 [Member] Senior Unsecured Notes Six Point Six Two Five Due May Two Thousand Twenty Three [Member] Senior unsecured notes seven point zero zero zero due may two thousand twenty five. 7.000% Senior Unsecured Notes Due May 2025 [Member] Senior Unsecured Notes Seven Point Zero Zero Zero Due May Two Thousand Twenty Five [Member] Senior unsecured notes four point zero zero zero due may two thousand twenty six. 4.000% Senior Unsecured Notes Due May 2026 [Member] Senior Unsecured Notes Four Point Zero Zero Zero Due May Two Thousand Twenty Six [Member] Senior unsecured notes five point three seven five due may two thousand twenty seven. 5.375% Senior Unsecured Notes Due May 2027 [Member] Senior Unsecured Notes Five Point Three Seven Five Due May Two Thousand Twenty Seven [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Senior secured tranche B-2 U.S.dollar term loan due May 2025. Senior Secured Tranche B-2 U.S Dollar Term Loan Due May 2025 [Member] Senior Secured Tranche B Two U S Dollar Term Loan Due May Two Thousand Twenty Five [Member] Senior secured tranche B-2 euro term loan due May 2025. Senior Secured Tranche B-2 Euro Term Loan Due May 2025 [Member] Senior Secured Tranche B Two Euro Term Loan Due May Two Thousand Twenty Five [Member] Senior secured revolving credit facility. Senior Secured Revolving Loan [Member] Senior Secured Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Long-term debt Debt Instrument Carrying Amount Finance lease liabilities Build-to-suit lease obligation Build To Suit Lease Obligation Total debt Long Term Debt And Capital Lease Obligations Including Current Maturities Less: Unamortized issue discounts Debt Instrument Unamortized Discount Less: Unamortized debt issuance costs Deferred Finance Costs Net Less: Current maturities of long-term debt Total long-term debt, net Long Term Debt And Capital Lease Obligations Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Debt instrument interest rate Debt Instrument Interest Rate Stated Percentage Repayment of outstanding borrowings Repayments Of Debt Line Of Credit Facility [Table] Line Of Credit Facility [Table] Senior secured term loan facility. Senior Secured Term Loan Facility [Member] Senior Secured Term Loan Facility [Member] Senior Secured Revolving Credit Facility [Member] Dollar term loan. Dollar Term Loan [Member] Dollar Term Loan [Member] Euro term loan. Euro Term Loan [Member] Euro Term Loan [Member] Line of Credit Facility [Line Items] Line Of Credit Facility [Line Items] Debt instrument term Debt Instrument Term Line of credit facility, maximum borrowing capacity Line Of Credit Facility Maximum Borrowing Capacity Long-term debt Long Term Debt Repayment of outstanding borrowings Repayments Of Long Term Lines Of Credit Letters of credit outstanding Letters Of Credit Outstanding Amount Commitment fee percentage Line Of Credit Facility Commitment Fee Percentage Effective interest rates on senior secured term loan Debt Instrument Interest Rate Effective Percentage Line of credit facility covenant terms additional principal repayment percentage of excess cash flow. Line of credit facility covenant terms additional principal repayment percentage of excess cash flow stepdown level one. Line of credit facility covenant terms additional principal repayment percentage of excess cash flow stepdown level two. Debt Instrument, Debt Covenant, Target Leverage Ratio Additional principal repayment, percentage of excess cash flows Line Of Credit Facility Covenant Terms Additional Principal Repayment Percentage Of Excess Cash Flow Additional principal repayment, percentage of excess cash flow, stepdown level one Line Of Credit Facility Covenant Terms Additional Principal Repayment Percentage Of Excess Cash Flow Stepdown Level One Additional principal repayment, percentage of excess cash flow, stepdown level two Line Of Credit Facility Covenant Terms Additional Principal Repayment Percentage Of Excess Cash Flow Stepdown Level Two Target leverage ratio Debt Instrument Debt Covenant Target Leverage Ratio Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Senior secured and unsecured debt. Senior Debt [Member] Senior Secured And Unsecured Debt [Member] Remainder of 2019 Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year 2020 Long Term Debt Maturities Repayments Of Principal In Year Two 2021 Long Term Debt Maturities Repayments Of Principal In Year Three 2022 Long Term Debt Maturities Repayments Of Principal In Year Four 2023 Long Term Debt Maturities Repayments Of Principal In Year Five Thereafter Long Term Debt Maturities Repayments Of Principal After Year Five Total principal maturities on senior debt Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 2 [Member] Fair Value Inputs Level2 [Member] Financial Instrument Financial Instrument [Axis] Financial Instruments Transfers And Servicing Of Financial Instruments Types Of Financial Instruments [Domain] Senior Debt Obligations [Member] Senior Debt Obligations [Member] Total senior debt, Carrying Value Senior debt, Fair Value Long Term Debt Fair Value Total senior debt, net Employee-related Liabilities, Noncurrent Other Liabilities Noncurrent [Abstract] Environmental remediation Accrued Environmental Loss Contingencies Noncurrent Employee-related costs Employee Related Liabilities Noncurrent Accrued litigation Litigation Reserve Noncurrent Asset retirement obligations Asset Retirement Obligations Noncurrent Deferred revenue Deferred Revenue Noncurrent Miscellaneous Other Sundry Liabilities Noncurrent Total other liabilities Accrued indemnification liability. Accrued indemnification liability Accrued Indemnification Liability Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingency Nature Loss Contingencies By Nature Of Contingency [Axis] Loss Contingency, Nature Loss Contingency Nature [Domain] PFOA matters. Perfluorooctanoic Acids and its Salts, including the Ammonium Salt [Member] P F O A Matters [Member] GenX and Other Perfluorinated and Polyfluorinated Compounds. GenX and Other Perfluorinated and Polyfluorinated Compounds [Member] Gen X And Other Perfluorinated And Polyfluorinated Compounds [Member] All other litigation matters. All Other Matters [Member] All Other Litigation Matters [Member] Catastrophic Event Liability For Catastrophe Claims By Catastrophic Event [Axis] Catastrophic Event Catastrophic Event [Domain] Asbestos [Member] Asbestos Issue [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Accrued litigation Loss Contingency Accrual At Carrying Value Loss contingency accrual at carrying value including components of environmental remediation liabilities. Site Contingency [Table] Site Contingency [Table] Benzene. Benzene [Member] Benzene [Member] Environmental Remediation [Line Items] Site Contingency [Line Items] Accrued litigation including environmental remediation liabilities Loss Contingency Accrual At Carrying Value Including Components Of Environmental Remediation Liabilities Accrual environmental remediation liabilities Accrual For Environmental Loss Contingencies Component Amount Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Other Accrued Liabilities [Member] Other Accrued Liabilities [Member] Other Accrued Liabilities [Member] Other Liabilities [Member] Other Liabilities [Member] Accrued Litigation: Loss Contingency [Abstract] Current accrued litigation Long-term accrued litigation Total accrued litigation Lawsuits alleging personal injury which have been filed. Asbestos Issue [Member] Benzene related illness. Benzene Related Illness [Member] Benzene Related Illness [Member] PFOA Matters [Member] PFOA matters: drinking water actions. PFOA Matters: Drinking Water Actions [Member] Pfoa Matters Drinking Water Actions [Member] Litigation Status Litigation Status [Axis] Litigation Status Litigation Status [Domain] Funding for medical monitoring program. Funding for medical monitoring program [Member] Funding For Medical Monitoring Program [Member] PFOA matters: additional actions. PFOA Matters: Additional Actions [Member] P F O A Matters Additional Actions [Member] MDL settlement. MDL Settlement [Member] M D L Settlement [Member] DuPont. DuPont [Member] Du Pont [Member] PFOA MDL settlement. PFOA MDL Settlement [Member] P F O A M D L Settlement [Member] State natural resource damages matters. State Natural Resource Damages Matters [Member] State Natural Resource Damages Matters [Member] Business seeking to recover losses. Business Seeking to Recover Losses [Member] Business Seeking To Recover Losses [Member] Lawsuits alleging personal injury - Filed Lawsuits Alleging Personal Injury Filed Accrual balance Lawsuits alleging illness Loss Contingency Pending Claims Number Binding settlement agreement, class size Escrow deposit disbursements. Binding settlement agreement, class size Binding Settlement Agreement Class Size Loss contingency, potential additional loss Loss Contingency Estimate Of Possible Loss Escrow deposit disbursements Escrow Deposit Disbursements Loss contingency, number of water districts to provide treatment. Number of water districts Company must provide treatment Loss Contingency Number Of Water Districts To Provide Treatment Date of agreement month and year. Date of agreement month and year Date Of Agreement Month And Year Total settlement amount Litigation Settlement Amount Awarded To Other Party Period of payments. Settlement payments Loss Contingency Accrual Payments Period of payments Period Of Payments Number of individual plaintiffs Loss Contingency Number Of Plaintiffs Number of loss contingency lawsuits filed. Number of lawsuits filed Number Of Loss Contingency Lawsuits Filed Number of lawsuit filed by each state. Number of lawsuit filed by each state Number Of Lawsuit Filed By Each State Cost of preparation of natural resource damage assessment plan and access to related documents. Cost of preparation of natural resource damage assessment plan and access to related documents Cost Of Preparation Of Natural Resource Damage Assessment Plan And Access To Related Documents Additional accrual for environmental loss contingencies. Civil penalty and investigative costs Payments For Legal Settlements Additional accrued environmental liability Additional Accrual For Environmental Loss Contingencies Accrued environmental liability Accrual For Environmental Loss Contingencies Long-lived assets Noncurrent Assets Number of reporting unit's goodwill tested for impairment Number Of Reporting Units Chambers works, deepwater, new jersey. Chambers Works, Deepwater, New Jersey [Member] Chambers Works Deepwater New Jersey [Member] East chicago, indiana. East Chicago, Indiana [Member] East Chicago Indiana [Member] Fayetteville works, fayetteville, north carolina. Fayetteville Works, Fayetteville, North Carolina [Member] Fayetteville Works Fayetteville North Carolina [Member] Pompton lakes, new jersey. Pompton Lakes, New Jersey [Member] Pompton Lakes New Jersey [Member] USS lead, east chicago, indiana. USS Lead, East Chicago, Indiana [Member] U S S Lead East Chicago Indiana [Member] All other environmental sites. All other sites [Member] All Other Environmental Sites [Member] Accrued environmental remediation Accrued litigation including environmental remediation liabilities Current environmental remediation Long-term environmental remediation Total accrued environmental remediation Average time frame of disbursements of environmental site remediation. Accrual for environmental remediation activities Average time frame of disbursements of environmental site remediation Average Time Frame Of Disbursements Of Environmental Site Remediation Environmental remediation activities amount Stock repurchase program effective date. Class Of Treasury Stock [Table] Class Of Treasury Stock [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] 2018 Share repurchase program. 2018 Share Repurchase Program [Member] Two Zero One Eight Share Repurchase Program [Member] Equity Class Of Treasury Stock [Line Items] Equity Class Of Treasury Stock [Line Items] Stock repurchase program, authorized amount Stock Repurchase Program Authorized Amount1 Stock repurchase program effective date Stock Repurchase Program Effective Date Stock repurchase program expiration date Stock Repurchase Program Expiration Date Treasury stock average share price during the period. Purchase of additional common stock under the share repurchase program Purchase of additional common stock value under the share repurchase program Average share price during the period Treasury Stock Average Share Price During Period Purchase of common stock under the share repurchase program Treasury Stock Common Shares Purchase of common stock value under the share repurchase program Average share price Treasury Stock Acquired Average Cost Per Share Remaining available amount of common stock under the share repurchase program Stock Repurchase Program Remaining Authorized Repurchase Amount1 Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Equity Award Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Stock Option [Member] Employee Stock Option [Member] Restricted Stock Units (RSUs) [Member] Restricted Stock Units R S U [Member] Title of Individual Title Of Individual [Axis] Relationship to Entity Title Of Individual With Relationship To Entity [Domain] Employees and non-employee directors. Employees and Non-Employee Directors [Member] Employees And Non Employee Directors [Member] Performance Share Units [Member] Performance Shares [Member] Chemours Company Equity and Incentive Plan [Member] Chemours Company Equity and Incentive Plan (the "Prior Plan") [Member] Chemours Company Equity And Incentive Plan [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Stock-based compensation expense Allocated Share Based Compensation Expense Number of shares granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Expiration period Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Stock-based compensation award vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Risk-free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Expected term (years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Fair value per stock option Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price Stock options outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Common stock, shares issued upon conversion of equity award. Number of shares granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Shares issued upon conversion of equity award Common Stock Shares Issued Upon Conversion Of Equity Award Number of shares non-vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Target Award Available for Grant Number of shares granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Number of non-issued shares cancelled Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Percentage of target award available for grant Sharebased Compensation Arrangement By Sharebased Payment Award Percentage Of Target Award Available For Grant Share based compensation arrangement by share based payment award consecutive offering period. Number of purchase periods in offer period. Number of common stock shares reserved for issuance Common Stock Capital Shares Reserved For Future Issuance Consecutive offering periods Share Based Compensation Arrangement By Share Based Payment Award Consecutive Offering Period Number of purchase periods in offer period Number Of Purchase Periods In Offer Period Percentage of common stock discount rate equal to the fair value Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date Stock purchased under employee stock purchase plan, Value Stock purchased under employee stock purchase plan, Share Derivative [Table] Derivative [Table] Derivative Instrument Derivative Instrument Risk [Axis] Derivative Contract Derivative Contract Type [Domain] Foreign currency forward contracts [Member] Foreign Exchange Contract [Member] Hedging Designation Hedging Designation [Axis] Hedging Designation Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Nondesignated [Member] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Other Income (Expense), Net [Member] Other Income [Member] Designated as Hedging Instrument [Member] Designated As Hedging Instrument [Member] Hedging Relationship Derivative Instruments Gain Loss By Hedging Relationship [Axis] Hedging Relationship Hedging Relationship [Domain] Cash Flow Hedge [Member] Cash Flow Hedging [Member] Cost of Goods Sold [Member] Cost Of Sales [Member] Net Investment Hedge [Member] Net Investment Hedging [Member] Derivative [Line Items] Derivative [Line Items] Number of forward exchange currency contracts Number Of Foreign Currency Derivatives Held Derivative notional value Derivative Notional Amount Derivative gains (losses) Derivative Gain Loss On Derivative Net Recognized gains (loss) on derivative cash flow hedge, pre-tax Gain reclassification to cost of goods sold on derivative cash flow hedge Gain Loss On Derivative Instruments Net Pretax Derivative cash flow hedge gain from accumulated other comprehensive loss to cost of goods sold to be reclassified with in twelve months Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months Recognized gain (loss) on derivative net investment hedge, pre-tax Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax Reclassification on derivative net investment hedge, pre-tax Derivatives Used In Net Investment Hedge Gain Loss Reclassified To Earnings Net Of Tax Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Fair Values Derivatives Balance Sheet Location By Derivative Contract Type By Hedging Designation [Table] Measurement Frequency Fair Value By Measurement Frequency [Axis] Fair Value, Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Fair Value Measurements Recurring [Member] Accounts and notes receivable - trade, net [Member] Trade Accounts Receivable [Member] Line item in the statement of financial position in which the fair value amounts of the derivative instruments are included. Other accrued liabilities [Member] Accrued Liabilities And Other Liabilities [Member] Derivatives, Fair Value [Line Items] Derivatives Fair Value [Line Items] Asset derivatives Derivative Fair Value Of Derivative Asset Liability derivatives Derivative Fair Value Of Derivative Liability Euro-denominated debt. Euro-denominated debt [Member] Euro Denominated Debt [Member] Gain (Loss) Recognized In Derivative Instruments Gain (Loss) Recognized In Other Comprehensive Income Schedule Of Defined Benefit Plans Disclosures [Table] Schedule Of Defined Benefit Plans Disclosures [Table] Retirement Plan Type Retirement Plan Type [Axis] Retirement Plan Type Retirement Plan Type [Domain] Pension Plan [Member] Pension Plans Defined Benefit [Member] Retirement Plan Sponsor Location Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location Retirement Plan Sponsor Location [Domain] Foreign [Member] Foreign Plan [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Service cost Defined Benefit Plan Service Cost Interest cost Defined Benefit Plan Interest Cost Expected return on plan assets Defined Benefit Plan Expected Return On Plan Assets Amortization of actuarial loss Defined Benefit Plan Amortization Of Gains Losses Amortization of prior service cost Defined Benefit Plan Amortization Of Prior Service Cost Credit Settlement loss Defined Benefit Plan Recognized Net Gain Loss Due To Settlements1 Total net periodic pension (cost) income Prior service benefit Settlement loss Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Before Tax Benefit recognized in other comprehensive income (loss) Total changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Amount Recognized In Net Periodic Benefit Cost And Other Comprehensive Income Loss Before Tax Defined Benefit Pension Plan [Member] Contributions by employer Defined Benefit Plan Contributions By Employer Estimated future employer contributions in current fiscal year Defined Benefit Plan Expected Future Employer Contributions Remainder Of Fiscal Year Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Adjusted EBITDA Income Loss From Continuing Operations Before Interest Taxes Depreciation And Amortization Net Corporate and Other Corporate And Other Expenses Depreciation and amortization Restructuring, asset-related, and other charges Transaction costs Transaction Fees Legal charges Legal Fees Linden New Jersey Site. Linden, New Jersey Site [Member] Linden New Jersey Site [Member] Legal charges Subsequent Event [Table] Subsequent Event [Table] Securitization facility. Securitization Facility [Member] Securitization Facility [Member] Current Liabilities [Member] Other Current Liabilities [Member] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Southern lonics minerals llc. Southern Ionics Minerals, LLC [Member] Southern Ionics Minerals Llc [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Increase in borrowing capacity Line Of Credit Facility Increase Decrease For Period Net Short-term debt Short Term Borrowings Estimated total consideration Business Combination Consideration Transferred1 Condensed Financial Information Of Parent Company Only Disclosure [Abstract] Schedule Of Condensed Financial Statements [Table] Schedule Of Condensed Financial Statements [Table] Condensed Financial Statements Captions [Line Items] Condensed Financial Statements Captions [Line Items] Condensed Income Statement [Table] Condensed Income Statement [Table] Parent Issuer [Member] Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] Parent Issuer [Member] Parent Company [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Non Guarantor Subsidiaries [Member] Reportable Legal Entities [Member] Reportable Legal Entities [Member] Eliminations and Adjustments [Member] Consolidation Eliminations [Member] Condensed Income Statements, Captions [Line Items] Condensed Income Statements Captions [Line Items] Restructuring, asset-related, and other charges Employee Separation Asset Related And Other Charges Including Impairments Net Equity in earnings of subsidiaries Income Loss From Subsidiaries Before Tax Interest (expense) income, net Interest Income Expense Net Intercompany interest income (expense), net Intercompany Interest Income Expense Net Other income (expense), net (Benefit from) provision for income taxes Comprehensive income attributable to Chemours Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statements Captions [Line Items] Condensed Balance Sheet Statements Captions [Line Items] Intercompany receivables Intercompany Receivables Investments in subsidiaries Investmentsin Subsidiaries Intercompany notes receivable Intercompany Notes Receivable Liabilities Liabilities And Stockholders Equity [Abstract] Intercompany payables Intercompany Payables Intercompany notes payable Intercompany Notes Payable Total Chemours stockholders’ equity Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statements Captions [Line Items] Condensed Cash Flow Statements Captions [Line Items] Cash provided by (used for) operating activities Intercompany investing activities Payments For Proceeds From Intercompany Investing Activities Proceeds from issuance of debt, net Proceeds from revolving loan Intercompany financing activities Payments For Proceeds From Intercompany Financing Activities