Document and Entity Information Document Information [Table] Document Information [Line Items] Document Type Document Type Document Quarterly Report Document Quarterly Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Securities Act File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two 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 Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag CONDENSED CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Assets [Abstract] ASSETS Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash and cash equivalents Restricted Cash and Cash Equivalent, Current Restricted cash and cash equivalents Accounts and Other Receivables, Net, Current Accounts and other receivables, net Total Inventory, Net Inventories, net Total Prepaid Expense and Other Assets, Current Prepaid expenses and other Assets, Current Total current assets Current assets Assets noncurrent excluding property plant and equipment. Assets Noncurrent Excluding Property Plant And Equipment [Abstract] Other assets: Other Receivable, after Allowance for Credit Loss, Noncurrent Note receivable from affiliate Marketable Securities, Noncurrent Marketable securities Market value, Noncurrent assets Equity Method Investments Balance at the end of the period Balance at the beginning of the period Investment in Kronos Worldwide, Inc. Goodwill Goodwill Operating Lease, Right-of-Use Asset Operating lease right-of-use asset Other Assets, Noncurrent Other assets, net Other noncurrent assets Assets noncurrent excluding property plant and equipment. Assets Noncurrent Excluding Property Plant And Equipment Total other assets Property, Plant and Equipment, Net [Abstract] Property and equipment: Land Land Buildings and Improvements, Gross Buildings Machinery and Equipment, Gross Equipment Construction in Progress, Gross Construction in progress Property, Plant and Equipment, Gross Property and equipment, gross Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Less accumulated depreciation Property, Plant and Equipment, Net Property and equipment, net Net property and equipment Assets Total assets Liabilities and Equity [Abstract] LIABILITIES AND EQUITY Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued and other current liabilities Total Accrued Environmental Loss Contingencies, Current Accrued environmental remediation and related costs Current liability Other Liabilities, Current Payables to affiliates Liabilities, Current Total current liabilities Current liabilities Liabilities, Noncurrent [Abstract] Noncurrent liabilities: Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer. Long-term debt from affiliate Accrued Environmental Loss Contingencies, Noncurrent Accrued environmental remediation and related costs Noncurrent liability Deferred Income Tax Liabilities, Net Deferred income taxes Operating Lease, Liability, Noncurrent Operating lease liability Other Liabilities, Noncurrent Other Total Other noncurrent liabilities Liabilities, Noncurrent Total noncurrent liabilities Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Equity: Equity, Attributable to Parent [Abstract] NLI stockholders' equity: Preferred Stock, Value, Issued Preferred stock Common Stock, Value, Issued Common stock Additional Paid in Capital, Common Stock Additional paid-in capital Retained Earnings (Accumulated Deficit) Retained earnings Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Equity, Attributable to Parent Balance at end of period Balance at beginning of period Total NLI stockholders' equity Stockholders' equity Equity, Attributable to Noncontrolling Interest Noncontrolling interest in subsidiary Equity, Including Portion Attributable to Noncontrolling Interest Ending Balance Beginning Balance Total equity Liabilities and Equity Total liabilities and equity Commitments and Contingencies Commitments and contingencies (Notes 12 and 14) CONDENSED CONSOLIDATED STATEMENTS OF INCOME Revenue from Contract with Customer, Excluding Assessed Tax Net sales Net sales Cost of Product and Service Sold Cost of sales Gross Profit Gross margin Selling, General and Administrative Expense Selling, general and administrative expense The aggregate total of income (expenses) of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Corporate expense, net Corporate expense Operating Income (Loss) Income from operations Income from operations Income (Loss) from Equity Method Investments Equity in earnings of Kronos Worldwide, Inc. Equity in earnings (losses) of Kronos Worldwide, Inc. Equity in earnings of Kronos Nonoperating Income (Expense) [Abstract] Other income (expense): Investment Income, Interest and Dividend Interest and dividend income Marketable Security, Gain (Loss) Marketable equity securities Marketable equity securities Pension and Other Postretirement Benefits Cost (Reversal of Cost) Other components of net periodic pension and OPEB cost Interest Expense, Nonoperating Interest expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Segment profit Income before income taxes Income Tax Expense (Benefit) Income tax benefit (expense) Income tax expense (benefit) Income tax expense (benefit) Income tax expense Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income Net income Net Income (Loss) Attributable to Noncontrolling Interest Noncontrolling interest in net income of subsidiary Net Income (Loss) Attributable to Parent Net income (loss) Net income attributable to NLI stockholders Earnings Per Share [Abstract] Amounts attributable to NLI stockholders: Earnings Per Share, Basic Basic net income per share Earnings Per Share, Diluted Diluted net income per share Weighted Average Number of Shares Outstanding, Basic Weighted average shares used in the calculation of net income per share - basic Weighted Average Number of Shares Outstanding, Diluted Weighted average shares used in the calculation of net income per share - diluted CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Currency translation Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Defined benefit pension plans Other comprehensive income loss other postretirement benefit plans net of tax. Other Comprehensive Income Loss Other Postretirement Benefit Plans Net Of Tax Other postretirement benefit plans Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss), net of tax Total other comprehensive income (loss), net Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income attributable to NLI stockholders CONDENSED CONSOLIDATED STATEMENTS OF EQUITY Equity Components [Axis] Equity Components Equity Component [Domain] Equity Component Common Stock [Member] Common stock Additional Paid-in Capital [Member] Additional paid-in capital Retained Earnings [Member] Retained earnings AOCI Attributable to Parent [Member] Total accumulated other comprehensive loss Accumulated other comprehensive loss Noncontrolling Interest [Member] Noncontrolling interest in subsidiary Stock Issued During Period, Value, New Issues Issuance of NLI common stock Dividends, Common Stock, Cash Dividends paid Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Dividends paid to noncontrolling interest Stockholders' Equity, Other Other, net Common Stock, Dividends, Per Share, Cash Paid Dividends paid per share CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Deferred Income Tax Expense (Benefit) Deferred income taxes Proceeds from Equity Method Investment, Distribution Dividends received from Kronos Dividends received from Kronos Worldwide, Inc. Defined benefit plan net periodic benefit cost greater less than funding. Defined Benefit Plan Net Periodic Benefit Cost Greater Less Than Funding Benefit plan expense greater than cash funding Accretion Expense Noncash interest expense Other Noncash Income (Expense) Other, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Change in assets and liabilities: Increase (Decrease) in Accounts and Other Receivables Accounts and other receivables, net Increase (Decrease) in Inventories Inventories, net Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued liabilities Increase (Decrease) in Due to Affiliates Accounts with affiliates Environmental Expense and Liabilities Accrued environmental remediation and related costs Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Other noncurrent assets and liabilities, net Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by (used in) operating activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Capital expenditures Payments for (Proceeds from) Investments [Abstract] Note receivable from affiliate: Proceeds from Collection of Advance to Affiliate Collections Payments for Advance to Affiliate Loans Payment for (Proceeds from) Other Investing Activity Other Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash used in investing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Payments of Ordinary Dividends, Common Stock Dividends paid Payments of Ordinary Dividends, Noncontrolling Interest Dividends paid to noncontrolling interests in subsidiary Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash used in financing activities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation [Abstract] Cash and cash equivalents and restricted cash and cash equivalents - net change from: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Operating, investing and financing activities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Balance at end of period Balance at beginning of year Supplemental Cash Flow Information [Abstract] Supplemental disclosures: Interest Paid, Excluding Capitalized Interest, Operating Activity Cash paid for interest Income Taxes Paid, Net Income taxes, net Noncash Investing and Financing Items [Abstract] Noncash investing and financing activities: Amount of change in accruals for capital expenditures. Change In Accruals For Capital Expenditures Change in accruals for capital expenditures Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-use asset obtained in exchange for a lease liability Organization and basis of presentation Significant accounting policies. Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant accounting policies. Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization and basis of presentation Segment information The entire disclosure for business and geographic areas including data and tables. Business And Geographic Information [Text Block] Segment information Accounts and other receivables, net Accounts and Financing Receivables [Table] Schedule Of Accounts Notes Loans And Financing Receivable [Table] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts and other receivables, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Accounts and other receivables, net Inventories, net Inventory, Current [Table] Inventory [Line Items] Inventory Disclosure [Text Block] Inventories, net Marketable securities Marketable Securities [Table] Marketable Securities [Line Items] Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Marketable securities Investment in Kronos Worldwide, Inc. Equity Method Investment [Table] Schedule Of Equity Method Investments [Table] Schedule of Equity Method Investments [Line Items] Schedule Of Equity Method Investments [Line Items] Equity Method Investments and Joint Ventures Disclosure [Text Block] Investment in Kronos Worldwide, Inc. Accrued and other current liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued and other current liabilities Long-term debt. Schedule of Long-Term Debt Instruments [Table] Debt Instrument [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Long-Term Debt [Text Block] Long-term debt Leases Lessee, Operating Leases [Text Block] Leases Other noncurrent liabilities Other noncurrent liabilities disclosure. Other Noncurrent Liabilities Disclosure [Text Block] Other noncurrent liabilities Revenue recognition Disaggregation of Revenue [Table] Disaggregation Of Revenue [Table] Disaggregation of Revenue [Line Items] Disaggregation Of Revenue Revenue from Contract with Customer [Text Block] Revenue recognition Income taxes Income Tax Disclosure [Text Block] Income taxes Stockholders' equity Stock, Class of Stock [Table] Class of Stock [Line Items] Equity [Text Block] Stockholders' equity Commitments and contingencies. Site Contingency [Table] Site Contingency [Line Items] Commitments and contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and contingencies Financial instruments Fair Value, by Balance Sheet Grouping [Table] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Financial instruments Financial Instruments Disclosure [Text Block] Financial instruments Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Recent Accounting Pronouncements Organization. Organization Policy [Text Block] Organization Basis of Accounting, Policy [Policy Text Block] Basis of presentation Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Schedule Of differences between segment profit and the amounts included in net income Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of accounts and other receivables, net Schedule of Inventory, Current [Table Text Block] Schedule of inventories, net Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Schedule of marketable securities Equity Method Investments [Table Text Block] Schedule of changes in carrying value of investment Condensed Balance Sheet [Table Text Block] Schedule of selected financial information of kronos balance sheet Condensed Income Statement [Table Text Block] Schedule of selected financial information of kronos income statement Schedule of Accrued Liabilities [Table Text Block] Schedule of accrued and other current liabilities Other Noncurrent Liabilities [Table Text Block] Summary of other noncurrent liabilities Disaggregation of Revenue [Table Text Block] Schedule of disaggregates of net sales by reporting unit Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of income taxes Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of changes in accumulated other comprehensive loss Schedule of Environmental Loss Contingencies by Site [Table Text Block] Schedule of changes in the accrued environmental remediation and related costs Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of financial instruments that are not carried at fair value Consolidated Entities [Axis] Consolidated Entities [Domain] Parent Company [Member] Parent Company Ownership [Axis] Ownership [Domain] Valhi Inc. Valhi Inc Legal Entity [Axis] Legal Entity All Entities [Member] Entity Contran Corporation. Contran Corporation Investment, Name [Axis] Investment, Name Investment, Name [Domain] Investment, Name Kronos Worldwide Inc. Kronos Kronos Subsidiary, Ownership Percentage, Parent Parent company ownership interest Equity Method Investment, Ownership Percentage Parent company ownership interest Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table] Segments [Axis] Segments Segments [Domain] Segments Represents information pertains to single reporting segment. Single Reportable Segment [Member] Single reportable segment Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] Indicates that the number of reportable segments is not disclosed. Number Of Reportable Segments Not Disclosed Flag Number of reportable segments not disclosed CompX International Inc. CompX Accounts Receivable, before Allowance for Credit Loss, Current Trade receivables - CompX Other Receivables, Gross, Current Other receivables Accounts Receivable, Allowance for Credit Loss, Current Allowance for doubtful accounts Inventory, Raw Materials, Net of Reserves Raw materials Inventory, Work in Process, Net of Reserves Work in process Inventory, Finished Goods, Net of Reserves Finished products Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV Fair Value, Inputs, Level 1 [Member] Fair value measurement level 1 Financial Instrument [Axis] Financial Instrument Financial Instruments [Domain] Financial Instruments Equity Securities [Member] Common stock Equity Securities, FV-NI, Cost Cost basis, Noncurrent assets Amount of unrealized gain (loss) on non current marketable securities. Unrealized Gain (Loss) on Noncurrent Marketable Securities Unrealized loss, net, Noncurrent assets Investment Owned, Balance, Shares Number of shares owned Number of shares owned Share Price Quoted marked price per share Quoted market price per share Equity Method Investment, Quoted Market Value Aggregate market value Retirement Plan Type [Axis] Retirement Plan Type Retirement Plan Type [Domain] Retirement Plan Type Pension Plan Defined benefit pension plans Other Comprehensive Income (Loss), before Tax [Abstract] Equity in Kronos' other comprehensive income (loss): Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax Defined benefit pension plans Consolidation Items [Axis] Consolidation Items [Domain] Reportable Legal Entities [Member] Reportable Legal Entities Long-Term Debt Long-term debt Liability, Defined Benefit Pension Plan, Noncurrent Accrued pension costs Accrued Employee Benefits, Current Employee benefits Other Accrued Liabilities, Current Other NLKW Holding, LLC. NLKW Holding, LLC Lender Name [Axis] Lender Name Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender Valhi. Valhi Debt Instrument [Axis] Debt Instrument Debt Instrument, Name [Domain] Debt Instrument, Name Valhi credit facility. Valhi Credit Facility Proceeds from (Repayments of) Lines of Credit Borrowings or repayments under revolving credit facility Line of Credit Facility, Maximum Borrowing Capacity Maximum borrowing under credit facility Long-Term Line of Credit Outstanding borrowing Line of Credit Facility, Remaining Borrowing Capacity Amount available for future borrowing under revolving credit facility Debt Instrument, Description of Variable Rate Basis Debt instrument, description of variable rate basis Debt Instrument, Basis Spread on Variable Rate Variable rate basis spread above reference rate Long-Term Debt, Weighted Average Interest Rate, at Point in Time Debt instrument average interest rate Lessee, Operating Lease, Remaining Lease Term Remaining lease term Lessee, Operating Lease, Discount Rate Discount rate Liability, Pension and Other Postretirement and Postemployment Benefits, Noncurrent OPEB Self Insurance Reserve, Noncurrent Insurance claims and expenses Other Sundry Liabilities, Noncurrent Other Security products. Security Products Marine components. Marine Components Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Line Items] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Amount Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Expected tax expense, at U.S. federal statutory income tax rate of 21% Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Amount Rate differences on equity in earnings (losses) of Kronos, net of dividends Income tax reconciliation state income taxes and other net. Income Tax Reconciliation State Income Taxes And Other Net U.S. state income taxes and other, net Tax Jurisdiction of Domicile [Extensible Enumeration] Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Abstract] Percentage Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent U.S. federal statutory income tax rate (in %) Effective Income Tax Rate Reconciliation, Percent Effective Income tax rate Disclosure income taxes component of income taxes expenses parenthetical detail. Disclosure Income Taxes Component Of Income Taxes Expenses Parenthetical Detail [Table] Disclosure Income Taxes Component Of Income Taxes Expenses Parenthetical Detail [Table] Disclosure income taxes component of income taxes expenses parenthetical detail. Disclosure Income Taxes Component Of Income Taxes Expenses Parenthetical Detail [Line Items] Disclosure Income Taxes Component Of Income Taxes Expenses Parenthetical Detail [Line Items] Disclosure Other Comprehensive Income Loss Tax Effects Allocated To Component Of Other Comprehensive Income Loss. Disclosure Other Comprehensive Income Loss Tax Effects Allocated To Component Of Other Comprehensive Income Loss [Abstract] Comprehensive provision for income taxes allocable to: Income taxes benefit allocable to additional paid in capital. Income Taxes Benefit Allocable To Additional Paid In Capital Additional paid-in capital Other Comprehensive Income (Loss), Tax [Abstract] Other comprehensive income (loss): Calculation tax related to currency translation. Calculation Of Tax Related To Currency Translation Currency translation Calculation of tax related to pension plans Calculation of tax related to pension plans Defined benefit pension plans Amount of tax expense (benefit) other. Other Comprehensive Income Loss Tax Expense (Benefit), Other Other Amount of provision (benefit) for income taxes allocation. Provision (Benefit) of Income Tax Allocation Comprehensive income tax expense Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income Loss [Table] Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Currency translation Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Defined benefit pension plans Accumulated other comprehensive income other adjustments. Accumulated other comprehensive income other adjustments Other Other Postretirement Benefits Plan [Member] OPEB plans Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income Loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss) Accrual for Environmental Loss Contingencies Balance at the end of the period Balance at the beginning of the period Accrual for reasonably estimable environmental remediation and related matters Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] The amount added to the accrual and charged to expense for newly incurred environmental loss contingencies and revisions to existing environmental loss contingencies. These additions include remediation expense and interest accretion. These additions do not relate to changes in the environmental accrual related to a business acquisition or divestiture, to currency movements, or revisions in previously existing estimates not charged to expense. Accrual For Environmental Loss Contingencies Provision For New Losses And Increases For Revision In Estimates Charged To Expense Additions charged to expense, net Accrual for Environmental Loss Contingencies, Payments Payments, net Accrual for Environmental Loss Contingencies [Abstract] Amounts recognized in the balance sheet: Statistical Measurement [Axis] Statistical Measurement Statistical Measurement [Domain] Statistical Measurement Maximum [Member] Maximum Environmental Exit Cost by Property [Axis] Environmental Exit Cost by Property Environmental Exit Costs, Name of Property [Domain] Environmental Exit Costs, Name of Property Environmental remediation sites NL named as PRP or defendant Environmental Remediation Sites NL Named As PRP Or Defendant Environmental Remediation Sites NL Named As PRP Or Defendant Number of environmental remediation sites with reasonably estimable costs. Number Of Environmental Remediation Sites With Reasonably Estimable Costs Number of sites associated with remediation and related costs Loss Contingency, Estimate of Possible Loss Upper end range, estimate costs for remediation and related matters Number of environmental remediation sites without reasonably estimable costs. Number Of Environmental Remediation Sites Without Reasonably Estimable Costs Number of sites currently not able to reasonably estimate a range of costs Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] Measurement Basis [Axis] Portion at Fair Value Measurement [Member] Fair Value Measurement [Domain] Reported Value Measurement [Member] Carrying amount Estimate of Fair Value Measurement [Member] Fair value Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Financial instruments Cash and equivalents and restricted cash and equivalents current and noncurrent fair value disclosure. Cash And Equivalents And Restricted Cash And Equivalents Current And Noncurrent Fair Value Disclosure Cash, cash equivalents and restricted cash