Entity Address, City or Town
Entity Address, City or Town
Schedule of future minimum rental payments for operating and financing leases.
Schedule Of Future Minimum Rental Payments For Operating And Financing Leases Table [Text Block]
Summary of Future Lease Payments
Stock Repurchased During Period, Value
Repurchases of common stock
Capital expenditures
Other Commitment
Other Commitment, Total
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Summary of Effective Income Tax Rate On Continuing Operations
Defined Benefit Plan, Plan with Projected Benefit Obligation in Excess of Plan Assets [Table Text Block]
Schedule of Accumulated Benefit Obligations in Excess of Plan Assets
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Other securities, Target Allocation
Earnings Per Share [Abstract]
Net Earnings Attributable to Martin Marietta Per Common Share (see Note A)
Fair Value, Inputs, Level 1 [Member]
Quoted Prices In Active Markets For Identical Assets (Level 1)
Land and Land Improvements [Member]
Land and Land Improvements
2025
Finance Lease, Liability, to be Paid, Year Three
Domestic Tax Authority [Member]
Domestic State Tax Authority
Deferred Tax Assets, Gross [Abstract]
Deferred tax assets related to:
Continuing Operations
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Net Cash Provided by (Used in) Financing Activities [Abstract]
Cash Flows from Financing Activities:
Purchase of restricted investments to discharge long-term debt
Purchase Of Restricted Investments To Discharge Long-Term Debt
Purchase of restricted investments to discharge long-term debt
Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Other assets and liabilities, net
Indefinite-Lived Intangible Assets [Line Items]
Indefinite Lived Intangible Assets By Major Class [Line Items]
Long-Term Line of Credit, Total
Long-Term Line of Credit
Outstanding borrowing under credit facility
Stock options one.
Stock Options One [Member]
Options granted prior to 2013
Amendment Flag
Amendment Flag
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
2026
Long-Term Debt, Maturity, Year Four
Capital Expenditures Incurred but Not yet Paid
Accrued liabilities for purchases of property, plant and equipment
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Common stock reserved for future issuance
2027
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Five
Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted
Less: distributed and undistributed earnings attributable to unvested participating securities
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization
Including acquisition bridge debt.
Including Acquisition Bridge Debt [Member]
Including Acquisition Bridge Debt
Disposal group including discontinued operation asset retirement obligations noncurrent.
Disposal Group Including Discontinued Operation Asset Retirement Obligations Noncurrent
Asset retirement obligations
Asset retirement obligation liabilities settled recoveries.
Asset Retirement Obligation Liabilities Settled Recoveries
Liabilities settled
Goodwill, Total
Goodwill
Balance at end of period
Balance at beginning of period
Goodwill
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Operating lease right-of-use assets, net
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Intangible Assets Subject to Amortization
Fixed Income Securities [Member]
Debt Securities
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis]
Unrecorded Unconditional Purchase Obligation by Category of Item Purchased
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Table]
Intangible assets fair value adjustment
Finite-Lived Intangible Assets, Purchase Accounting Adjustments
Payments for Repurchase of Common Stock
Repurchases of common stock
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Foreign Currency
Revenue recognition.
Revenue Recognition [Table]
Revenue Recognition [Table]
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Less: imputed interest
Earnings Per Share, Policy [Policy Text Block]
Earnings Per Common Share
Percentage of discount rate to the market value on the incentive compensation.
Percentage Of Discount Rate To Market Value On Incentive Compensation
Percentage of discount rate to market value on the incentive compensation
Statement [Table]
Statement [Table]
Operating Lease, Liability, Noncurrent
Noncurrent operating lease liabilities
Total long-term lease obligations
2023
Finance Lease, Liability, to be Paid, Year One
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Reclassification Adjustment, before Tax
Total
Finance Lease, Interest Expense
Interest on lease liabilities
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Amount that, if recognized, would favorably impact the effective tax rate
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Federal income taxes:
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization
Less: accumulated depreciation, depletion and amortization
Lessee operating leases.
Lessee Operating Leases [Abstract]
Operating Leases:
Subsegments [Domain]
Subsegments
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false]
Change in accounting principle, accounting standards update, immaterial effect [true false]
Other Postretirement Benefits Plan [Member]
Postretirement Benefits
Operating Lease, Payments
Operating cash flows used for operating leases
Number of Operating Segments
Number of divisions represent operating segments
London Interbank Offered Rate (LIBOR) [Member]
London Interbank Offered Rate(LIBOR)
Service [Member]
Service
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature
Preferred Stock, Shares Outstanding, Ending Balance
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding
Preferred stock, shares outstanding
Business Acquisition [Axis]
Business Acquisition
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income Loss [Table]
Machinery and Equipment [Member]
Machinery and Equipment
Effect of statutory depletion
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent
Inventory finished goods.
Inventory Finished Goods [Member]
Inventory Finished Goods
Finance lease right-of-use assets.
Finance Lease Right Of Use Assets [Member]
Finance Lease Right Of Use Assets
Common Stock, Capital Shares Reserved for Future Issuance
Common stock reserved for issuance under stock-based award plans
Land Improvements [Member]
Land Improvements
Payments of Ordinary Dividends, Common Stock
Dividends paid
Auditor Firm ID
Auditor Firm ID
Construction Contractor, Receivable, Retainage, Total
Construction Contractor, Receivable, Retainage
Retainage on contracts
Weighted-Average Grant-Date Fair Value, December 31, 2022
Weighted-Average Grant-Date Fair Value, January 1, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Weighted-Average Grant-Date Fair Value, Distributed
Other Comprehensive Income (Loss), Defined Benefit Plan, Adjustment for Settlement or Curtailment Gain (Loss), Tax
Amount recognized in net periodic pension cost due to settlement, tax
Asset retirement obligations and other liabilities assumed
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Liabilities Other
Business combination recognized identifiable assets acquired and liabilities assumed liabilities other.
Three point five zero zero percent senior notes due twenty twenty seven.
Three Point Five Zero Zero Percent Senior Notes Due Twenty Twenty Seven [Member]
3.500% Senior Notes, Due 2027
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory
Inventories
Pretax gain
Gain on sale of investment
Gain (Loss) on Disposition of Business
Payments to Acquire Productive Assets, Total
Payments to Acquire Productive Assets
Capital expenditures
Income Tax Authority [Domain]
Income Tax Authority
Self Insurance Reserve [Policy Text Block]
Insurance Reserves
Deferred Tax Assets, Tax Credit Carryforwards, Total
Deferred Tax Assets, Tax Credit Carryforwards
Deferred tax assets recognized
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period
Number of Options, Terminated
Unrecognized tax benefits excluding interest and correlative effects.
Unrecognized Tax Benefits Excluding Interest And Correlative Effects
Unrecognized tax benefits, excluding interest and correlative effects
Unrecognized tax benefits reversed into income upon the statute of limitations expiration.
Unrecognized Tax Benefits Reversed Into Income Upon The Statute Of Limitations Expiration
Unrecognized tax benefits reversed into income upon the statute of limitations expiration
2026
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
Total tax benefits related to stock-based compensation expense
Share-Based Payment Arrangement, Expense, Tax Benefit
Product and Service [Axis]
Product and Service
Tiller Corporation.
Tiller Corporation [Member]
Tiller Corporation
Accumulated depreciation
Accumulated depreciation
Finance Lease, Right-of-Use Asset, Accumulated Amortization
Other postretirement defined benefit plan liabilities, current.
Other Postretirement Defined Benefit Plan Liabilities Current
Current pension and postretirement benefits
Future share-based compensation expense.
Future Share Based Compensation Expense
Total
Accrued salaries, benefits and payroll taxes
Employee-related Liabilities, Current
Employee-related Liabilities, Current, Total
Disposal Group Classification [Domain]
Disposal Group Classification
2024
Future minimum lease commitments related to contracts of affreightment due year two.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Two
Principal amount of stock repurchased during the period
Debt Instrument, Repurchased Face Amount
Share-Based Payment Arrangement, Option [Member]
Stock Options
Concentration Risk Type [Axis]
Concentration Risk Type
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Issuances of common stock for stock award plans (in shares)
Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]
Foreign income taxes:
Operating Lease, Weighted Average Remaining Lease Term
Operating leases
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Amounts reclassified from accumulated other comprehensive loss, net of tax
Earnings from Continuing Operations
Liabilities and Equity
Total Liabilities and Equity
Inventory, Policy [Policy Text Block]
Inventories Valuation
Intersubsegment Eliminations [Member]
Interproduct Revenues
Assets for Plan Benefits, Defined Benefit Plan
Noncurrent asset pension and postretirement benefits
Reclassifications
Reclassification, Comparability Adjustment [Policy Text Block]
Other Liabilities, Current
Other current liabilities
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested
Aggregate intrinsic values of stock awards, distributed
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted-Average Common Shares Outstanding
Defined Benefit Plan, Equity Securities, US, Small Cap [Member]
Small Cap, International and Emerging Growth Funds
Inventory, Raw Materials, Gross
Raw materials
Deferred Foreign Income Tax Expense (Benefit)
Deferred
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Change in accounting principle, accounting standards update, adopted [true false]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Income Statement [Abstract]
Three point four five zero percent senior notes due twenty twenty seven.
Three Point Four Five Zero Percent Senior Notes Due Twenty Twenty Seven [Member]
3.450% Senior Notes, Due 2027
Payments for (Proceeds from) Life Insurance Policies, Total
Payments for (Proceeds from) Life Insurance Policies
Investments in life insurance contracts, net
Capital expenditures
Capital Expenditure, Discontinued Operations
Finance Lease, Weighted Average Remaining Lease Term
Finance leases
Asset retirement obligations and other liabilities assumed
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other
Operating Segments [Member]
Operating Segments
Finance Lease, Liability, Current
Other current liabilities
Less: current lease obligations
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax
Net gain (loss) arising during period, tax
Liabilities, Current
Total Current Liabilities
Asset retirement obligations and other liabilities assumed
Asset Retirement Obligations And Other Liabilities Purchase Accounting Adjustments
Asset retirement obligations and other liabilities purchase accounting adjustments.
Operating Loss Carryforwards
Operating loss carryforwards, amount
2025
Lessee, Operating Lease, Liability, to be Paid, Year Three
Component of other operating income and expense.
Component Of Other Operating Income And Expense [Line Items]
Component of Other Operating Income and Expense [Line Items]
2023
Future share-based compensation expense year one.
Future Share Based Compensation Expense Year One
2027
Long-Term Debt, Maturity, Year Five
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Less: Comprehensive earnings attributable to noncontrolling interests
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree
Disposal group, including discontinued operation, lease right-of-use assets.
Disposal Group Including Discontinued Operation Lease Right Of Use Assets
Operating lease right-of-use assets
Interest Expense, Total
Interest Expense
Interest expense
Additional interest expense
Trade Names [Member]
Trade names
Schedule of weighted-average remaining lease terms and discount rates.
Schedule Of Weighted Average Remaining Lease Terms And Discount Rates Table [Text Block]
Summary of Weighted-average Remaining Lease Terms and Discount Rates
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]
Schedule of Change In Plan Assets
Short-Term Lease, Cost
Short-term lease cost
Income Tax, Policy [Policy Text Block]
Income Taxes
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax
Amortization of prior service credit, tax
Schedule of Health Care Cost Trend Rates [Table Text Block]
Schedule of Assumed Health Care Cost Trend Rates
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
Summary of Intangible Assets Acquired
Bahamas and Canada.
Bahamas And Canada [Member]
Bahamas And Canada
Interest payable
Proceeds from Sale of Equity Method Investments
Preferred Stock, Shares Authorized
Preferred stock, shares authorized
Group of bonds, amount.
Group Of Bonds Amount
Group of bonds, amount
Deferred Tax Liabilities, Net, Total
Deferred Tax Liabilities, Net
Deferred income taxes, net
PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
Liability, Defined Benefit Plan, Current
Long-Term Debt, Fair Value
Long-term debt, fair values
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent, Total
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Net earnings from continuing operations attributable to Martin Marietta
Hedge Funds [Member]
Hedge Funds
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Components of Income Tax Expense From Continuing Operations
Operating Lease, Weighted Average Discount Rate, Percent
Operating leases
State and Local Income Tax Expense (Benefit), Continuing Operations
Total state income taxes
Corporate, Non-Segment [Member]
Corporate
Variable Rate [Axis]
Variable Rate
Entity Small Business
Entity Small Business
Line of Credit Facility, Interest Rate at Period End
Credit Facility interest rate
Number of Reportable Segments
Reportable business segments
Cash, Cash Equivalents and Restricted Cash, end of year
Cash, Cash Equivalents and Restricted Cash, beginning of year
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Total cash, cash equivalents and restricted cash presented in the consolidated statements of cash flows
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased
Common stock remaining under repurchase authorization
Revenue from External Customers by Geographic Areas [Table Text Block]
Domestic and Foreign Total Revenues
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Income
Operating Activities [Axis]
Operating Activities
Six point two five percent senior notes due twenty thirty seven.
Six Point Two Five Percent Senior Notes Due Twenty Thirty Seven [Member]
6.25% Senior Notes, Due 2037
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period
Award Date [Domain]
Award Date
Foreign Income Tax Expense (Benefit), Continuing Operations
Total foreign income taxes
Assets, Current
Total Current Assets
Property, Plant and Equipment [Line Items]
Property Plant And Equipment [Line Items]
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
Summary of Information About the Company's Contract Balances
Schedule of Allocation of Plan Assets [Table Text Block]
Schedule of Target Assets Allocation
Indefinite-Lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets
Revenues and gross profit.
Revenues And Gross Profit [Text Block]
Revenues and Gross Profit
Share-Based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block]
Summary Information for Restricted Stock Awards and Incentive Compensation Stock Awards
Indefinite-Lived Intangible Assets (Excluding Goodwill), Ending Balance
Indefinite-Lived Intangible Assets (Excluding Goodwill), Beginning Balance
Indefinite-Lived Intangible Assets (Excluding Goodwill), Total
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Indefinite life intangible assets
Environmental Costs, Policy [Policy Text Block]
Environmental Matters
Weighted Average Number of Shares Outstanding, Basic, Total
Weighted Average Number of Shares Outstanding, Basic
Basic
Basic weighted-average common shares outstanding
Present value of lease payments
Finance Lease, Liability
Present value of lease payments
Total finance lease liabilities
City Area Code
City Area Code
Schedule of Debt [Table Text Block]
Schedule of Principal Amount, Effective Interest Rate and Maturity Date for Corporation's Senior Notes
Schedule of Net Benefit Costs [Table Text Block]
Schedule of Components of Net Periodic Benefit Cost (Credit)
Accounts Receivable, before Allowance for Credit Loss, Current
Customer receivables
West group.
West Group [Member]
West Group
Defined Benefit Plan, Amortization of Transition Asset (Obligation)
Transition asset
Use rights and other.
Use Rights And Other [Member]
Use Rights And Other
Reportable Subsegments [Member]
Reportable Subsegments
Defined Benefit Plan, Funded (Unfunded) Status of Plan, Total
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Funded status of the plan at end of year
Share-Based Payment Arrangement [Abstract]
Liabilities
Total Liabilities
Document Period End Date
Document Period End Date
Restricted Stock [Member]
Restricted Stock Awards
Guarantor Obligations, Maximum Exposure, Undiscounted
Guarantee of affiliate's obligations
Collective bargaining agreement expiration month year.
Collective Bargaining Agreement Expiration Month Year
Collective bargaining agreement expiration month year
Schedule of Finite-Lived Intangible Assets [Table]
Schedule Of Finite Lived Intangible Assets [Table]
Operating permits.
Operating Permits [Member]
Operating Permits
Construction in Progress [Member]
Construction in Progress
Other assets
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Assets
Business combination recognized identifiable assets acquired and liabilities assumed other assets.
Deferred Tax Liabilities, Goodwill and Intangible Assets, Total
Deferred Tax Liabilities, Goodwill and Intangible Assets
Goodwill and other intangibles
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Total net periodic benefit cost (credit)
Schedule of revenue by category for reportable segment.
Schedule Of Revenue By Category For Reportable Segment Table [Text Block]
Schedule of Company's Total Revenues by Category for each Reportable Segment
Payments for (Proceeds from) Policy Loans, Total
Payments for (Proceeds from) Policy Loans
Repayment of loans related to life insurance policies
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Financial Data for Continuing Operation for Company's Reportable Segments
2023
Finite-Lived Intangible Asset, Expected Amortization, Year One
Statistical Measurement [Axis]
Statistical Measurement
Schedule of Product Information [Table]
Schedule Of Product Information [Table]
Corporate headquarters
Corporate Headquarters [Member]
Corporate headquarters member.
Weighted-average discount rate.
Weighted Average Discount Rate [Abstract]
Weighted-average discount rates:
Schedule of acquired finite and indefinite lived intangible asset by major class
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Table]
Schedule Of Acquired Finite And Indefinite Lived Intangible Asset By Major Class [Table]
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Accumulated benefit obligation
Directors awards.
Directors Awards [Member]
Directors' Awards
Schedule of Net Funded Status [Table Text Block]
Schedule of Funded Status
Other Assets, Current
Other current assets
2023
Defined Benefit Plan, Expected Future Benefit Payment, Year One
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance
Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance
Stockholders' Equity Attributable to Noncontrolling Interest, Total
Stockholders' Equity Attributable to Noncontrolling Interest
Noncontrolling interests
Finance Lease, Interest Payment on Liability
Operating cash flows used for finance leases
Schedule of contracts of affreightment and royalty commitments.
Schedule Of Contracts Of Affreightment And Royalty Commitments Table [Text Block]
Schedule of Future Minimum Contracts of Affreightment and Royalty Commitments for All Noncancelable Agreements
Finite-Lived Intangible Asset, Expected Amortization, after Year Five
Thereafter
Debt instrument payable upon maturity.
Debt Instrument Payable Upon Maturity
Debt Instrument Payable Upon Maturity
Assets
Assets employed
Total Assets
Contract with Customer, Asset, after Allowance for Credit Loss, Total
Contract with Customer, Asset, after Allowance for Credit Loss
Costs in excess of billings
Option to extend lease
Lessee Option To Extend
Lessee option to extend.
State and Local Jurisdiction
State and Local Jurisdiction [Member]
State Tax Authority
conduit lenders.
Conduit Lenders [Member]
Conduit Lenders
Other Nonoperating Income, Net
Other Nonoperating Income (Expense) [Member]
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax
Total - Gross
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
Rate of increase in future compensation levels
Accounts and other receivables gross current.
Accounts And Other Receivables Gross Current
Total accounts receivable
Long-Term Debt, Excluding Current Maturities, Total
Long-Term Debt, Excluding Current Maturities
Long-term debt
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
State income taxes:
Earnings Per Share, Diluted
Diluted attributable to common shareholders
Retirement Plan Type [Axis]
Retirement Plan Type
Maximum consolidated debt reduction for unrestricted cash and temporary investments for debt covenant calculation.
Maximum Consolidated Debt Reduction For Unrestricted Cash And Temporary Investments For Debt Covenant Calculation
Maximum consolidated debt reduction for unrestricted cash and temporary investments for debt covenant calculation
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Rate of increase in future compensation levels
Discontinued Operations [Member]
Cement and California Ready Mix Businesses
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Debt issuance and extinguishment costs
Payment for Debt Extinguishment or Debt Prepayment Cost
Other Receivables, Gross, Current
Other current receivables
Document Fiscal Period Focus
Document Fiscal Period Focus
Subsegments Consolidation Items [Domain]
Subsegments Consolidation Items
Restricted Cash, Total
Restricted Cash
Restricted cash
Cost of Goods and Services Sold, Total
Cost of Goods and Services Sold
Total cost of revenues
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Accounting Policies
Increase (Decrease) in Accounts Receivable
Accounts receivable, net
Pension Plan [Member]
Pension
Revolving Credit Facility [Member]
Revolving Facility
Deferred Tax Assets, Valuation Allowance
Valuation allowance on deferred tax assets
Preferred Stock, Value, Issued
Preferred stock ($0.01 par value; 10.0 shares authorized; no shares outstanding)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Stock-based compensation expense
Goodwill, Written off Related to Sale of Business Unit
Divestitures
2027
Finance Lease, Liability, to be Paid, Year Five
Payments for (Proceeds from) Other Investing Activities
Other investing activities, net
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Effect of dilutive employee and director awards
Deferred Tax Liabilities, Gross [Abstract]
Deferred tax liabilities related to:
Building Materials Business
Building materials business.
Building Materials Business [Member]
Building Materials Business
Organization policy.
Organization Policy [Text Block]
Organization
Present value of lease payments
Operating Lease, Liability
Present value of lease payments
Total operating lease liabilities
Net Cash (Used for) Provided by Financing Activities
Net Cash Provided by (Used in) Financing Activities
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Participants' contributions
Deferred Tax Liabilities, Property, Plant and Equipment
Property, plant and equipment
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Retirement Plans and Postretirement Benefits
Revenue recognition.
Revenue Recognition [Line Items]
Revenue Recognition [Line Items]
Schedule of fair values of pension plan assets by asset class and fair value hierarchy level.
Schedule Of Fair Values Of Pension Plan Assets By Asset Class And Fair Value Hierarchy Level Table [Text Block]
Fair Values of Pension Plan Assets by Asset Class and Fair Value Hierarchy Level
Freight and delivery costs.
Freight And Delivery Costs Policy [Text Block]
Freight and Delivery Costs
CALIFORNIA
California
Statement of Financial Position [Abstract]
Disposal Group Classification [Axis]
Disposal Group Classification
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Total - Net of tax
Securities Act File Number
Entity File Number
Scenario [Domain]
Scenario
Disposal Groups, Including Discontinued Operations [Table Text Block]
Summary of Discontinued Operations and Assets and Liabilities Held for Sale
Finance Lease, Liability, to be Paid
Total lease payments
Statement of Cash Flows [Abstract]
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Thereafter
2027
Future minimum lease commitments related to contracts of affreightment due year five.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Five
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax
Total reclassifications out of accumulated other comprehensive loss before taxes
Leases policy.
Leases Policy [Text Block]
Leases
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Schedule of Net Periodic Benefit Credit or Cost Not Yet Recognized
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Assets:
Retirement Benefits [Text Block]
Retirement Plans, Postretirement and Postemployment Benefits
Geographical [Domain]
Geographical
Other Operating Income (Expense), Net
Other operating income and expenses, net
Other operating income, net
Statistical Measurement [Domain]
Statistical Measurement
Statement of Stockholders' Equity [Abstract]
Other notes.
Other Notes [Member]
Other Notes
Property Plant And Equipment And Finance Lease Right Of Use Asset Depreciation and Amortization
Property Plant And Equipment And Finance Lease Right Of Use Asset Depreciation and Amortization
Property plant and equipment and finance lease right of use asset depreciation and amortization.
Auditor Location
Auditor Location
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets
Fair value of plan assets
Use Rights
Use Rights [Member]
Revenue from Contract with Customer [Policy Text Block]
Revenue Recognition
Lease, Cost [Table Text Block]
Summary of Components of Lease Cost
2024
Royalty commitments future minimum payments due year two.
Royalty Commitments Future Minimum Payments Due Year Two
Decrease in unrecognized tax benefits excluding interest and correlative effects.
Decrease In Unrecognized Tax Benefits Excluding Interest And Correlative Effects
Decrease in unrecognized tax benefits, excluding interest and correlative effects
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income
Disposal Group, Including Discontinued Operation, Liabilities, Current, Total
Disposal Group, Including Discontinued Operation, Liabilities, Current
Current liabilities held for sale
Total current liabilities held for sale
Weighted-Average Remaining Contractual Life (years), Exercisable at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Proceeds from Stock Options Exercised
Proceeds from exercise of stock options
Long-Term Debt, Type [Axis]
Long-term Debt, Type
Goodwill reclassified from assets held for sale
Goodwill reclassified from allocated to assets held for sale.
Goodwill Reclassified from Allocated to Assets Held for Sale
Years 2028 -2032
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years
2026
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four
Deferred Income Tax Expense (Benefit), Total
Deferred Income Tax Expense (Benefit)
Deferred income taxes, net
Incentive stock.
Incentive Stock [Member]
Incentive Compensation Stock Awards
Debt Instrument, Redemption, Period One [Member]
Prior to July 2, 2022 (2023 Par Call Date)
Seven percent debentures due twenty twenty five.
Seven Percent Debentures Due Twenty Twenty Five [Member]
7% Debentures, Due 2025
Deferred Income Tax Liabilities, Net
Deferred income taxes, net
Property, Plant and Equipment [Table Text Block]
Property, Plant and Equipment, Net
Business combination recognized identifiable assets acquired and liabilities assumed asset retirement obligations.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Asset Retirement Obligations
Asset retirement obligations
Shareholder value achievement plan 1996.
Shareholder Value Achievement Plan1996 [Member]
Shareholder Value Achievement Plan (1996)
Revenue from Contract with Customer [Text Block]
Revenue Recognition
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
Actuarial loss
Two point five zero zero percent senior notes due twenty thirty.
Two Point Five Zero Zero Percent Senior Notes Due Twenty Thirty [Member]
2.500% Senior Notes, Due 2030
Postretirement Health Care Plans.
Postretirement Health Care Plans [Member]
Postretirement Health Care Plans [Member]
Disposal Group, Including Discontinued Operation, Revenue
Total revenues
Line of Credit Facility, Maximum Borrowing Capacity
Credit facility commitment
Subsegments [Axis]
Subsegments
Preferred Stock, Par or Stated Value Per Share
Preferred stock, par value
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Property, plant and equipment, net
Lessee, Lease, Description [Line Items]
Lessee Lease Description [Line Items]
Debt instrument maturity date year.
Debt Instrument Maturity Date Year
Maturity year
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Total Consideration
Credit Facility [Domain]
Credit Facility
TEXAS
Texas
Business acquisition effective date of acquisition month and year.
Business Acquisition Effective Date Of Acquisition Month And Year
Business combination, effective date
Austin, Texas and Riverside, California.
Austin Texas And Riverside California [Member]
Austin, Texas and Riverside, California
Weighted Average Number of Shares Outstanding, Diluted
Diluted
Diluted weighted-average common shares outstanding
2025
Future minimum lease commitments related to contracts of affreightment due year three.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Three
Total Revenues and Gross Profit (loss) by Product Line
Schedule of entity wide revenue and gross profit from external customers by products and services.
Schedule Of Entity Wide Revenue And Gross Profit From External Customers By Products And Services [Text Block]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
Accounts Receivable, Net
Cash Equivalents [Member]
Cash Equivalents
Schedule of Indefinite-Lived Intangible Assets [Table]
Schedule Of Indefinite Lived Intangible Assets [Table]
Financial instruments disclosure.
Financial Instruments Disclosure [Abstract]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name
Credit Facility [Axis]
Credit Facility
Defined Benefit Plan, Plan Assets, Amount
Balance at end of year
Balance at beginning of year
Fair values of pension plan assets
Future minimum lease commitments related to contracts of affreightment.
Future Minimum Lease Commitments Related To Contracts Of Affreightment
Total
Royalty Expense
Royalties expenses
Gain on divestiture
Gain (Loss) on Disposition of Assets
Gain (Loss) on Disposition of Assets, Total
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Supplemental Disclosures of Cash Flow Information
Current Fiscal Year End Date
Current Fiscal Year End Date
Restricted investments
Restricted Investments
Acquisition and integration expenses
Business Combination Acquisition and Integration Related Costs
Business combination acquisition and integration related costs.
2027
Royalty commitments future minimum payments due year five.
Royalty Commitments Future Minimum Payments Due Year Five
Guarantee obligations outstanding.
Guarantee Obligations Outstanding
Due from affiliate
Stock Repurchased During Period, Shares
Stock Repurchased During Period, Shares
Repurchases of common stock, Shares
Other Assets, Noncurrent
Other noncurrent assets
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Ending Balance
Beginning Balance
Total Equity
Entity Address, Address Line One
Entity Address, Address Line One
Repayments of Long-Term Debt, Total
Repayments of Long-Term Debt
Repayments of long-term debt
Cement.
Cement [Member]
Cement
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category
Noncontrolling Interest [Member]
Noncontrolling Interests
2026
Future minimum lease commitments related to contracts of affreightment due year four.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Year Four
Document Annual Report
Document Annual Report
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Excess tax benefits for stock options exercised
Excess Tax Benefit From Share Based Compensation Operating Activities 1
Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.
Disposal Groups, Including Discontinued Operations [Table]
Share-Based Payment Arrangement, Nonvested Award, Cost [Table Text Block]
Stock-Based Compensation Expense in Future for Outstanding Awards
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class
Gain on repurchase of bond
Gain (Loss) on Repurchase of Debt Instrument
Restricted Investments
Investment, Policy [Policy Text Block]
Business Combinations, Divestitures, Discontinued Operations and Assets and Liabilities Held for Sale
Business Combinations Divestitures And Discontinued Operations Text Block
Business combinations divestitures and discontinued operations text block
Liability, Other Postretirement Defined Benefit Plan
Net amount recognized at end of year
Income Tax Expense (Benefit)
Income tax expense
Income tax expense
Tax effect
Defined Benefit Plan, Accumulated Benefit Obligation
Accumulated benefit obligation for defined benefit pension plans
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Terminated
Open tax years
Open Tax Year
Senior Notes
Senior Notes [Member]
Finance Lease, Liability, to be Paid [Abstract]
Financing Leases
Income Tax Disclosure [Text Block]
Income Taxes
Debt Instrument, Redemption, Period Two [Member]
On or After 2023 Par Call Date and Prior to Maturity
Payments to Acquire Property, Plant, and Equipment, Total
Payments to Acquire Property, Plant, and Equipment
Additions to property, plant and equipment
Revenue, Remaining Performance Obligation, Amount
Future revenues from unsatisfied performance obligations
Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization
Land and land improvements
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Discount rate
Income Tax Disclosure [Abstract]
increased remeasurement of defined benefit plans
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement
Disposal Group, Including Discontinued Operation, Assets, Noncurrent
Noncurrent assets held for sale
Total noncurrent assets held for sale
Other Operating Income and Expense [Text Block]
Other Operating Income, Net
Change in Accounting Principle, Accounting Standards Update, Adoption Date
Change in accounting principle, accounting standards update, adoption date
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Projected benefit obligation
Products and services.
Products And Services [Member]
Products and Services
Asphalt and paving.
Asphalt And Paving [Member]
Asphalt and Paving
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Other items
Share based compensation arrangement by share based payment award equity instruments other than options adjustment for performance weighted average grant date fair value.
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance Weighted Average Grant Date Fair Value
Weighted-Average Grant-Date Fair Value, Adjustment for performance
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV
Goodwill and Intangible Assets Disclosure [Abstract]
Amount recognized in net periodic pension cost due to settlement, net of tax of $1.1, $0.0 and $0.9, respectively
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax
Geographic Concentration Risk [Member]
Geographic Concentration Risk
Share-Based Payment Arrangement [Policy Text Block]
Stock-Based Compensation
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Prior service cost (credit)
Prior service (cost) credit
Options granted in two thousand fourteen and two thousand thirteen.
Stock Options Two [Member]
Options granted in 2015 and 2014
Restricted stock service based.
Restricted Stock Service Based [Member]
Restricted Stock - Service Based Awards
Share based compensation arrangement by share based payment award equity instruments other than options adjustment for performance.
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Adjustment For Performance
Number of Awards, Adjustment for performance
Uncategorized.
Uncategorized [Abstract]
Product and freight revenues customer payment terms.
Product And Freight Revenues Customer Payment Terms
Product and freight revenues customer payment terms
Auditor Name
Auditor Name
Schedule of estimated service life of property, plant and equipment.
Schedule Of Estimated Service Life Of Property Plant And Equipment Table [Text Block]
Estimated Service Lives for Property Plant and Equipment
Schedule of Asset Retirement Obligations [Table Text Block]
Schedule of Changes in Asset Retirement Obligations
Equity [Abstract]
2026
Finance Lease, Liability, to be Paid, Year Four
Contract with Customer, Liability, Revenue Recognized
Revenue recognized from contract liabilities
Pretax loss on divestiture
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Financial Instruments Disclosure [Text Block]
Financial Instruments
Southern Crushed Concrete.
Southern Crushed Concrete [Member]
Southern Crushed Concrete
Prior service cost arising during period, net of tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Tax
Operating Income (Loss)
Earnings from operations
Earnings from Operations
Earnings (Loss) from operations
Settlement of senior notes and related interest payments
Debt Instrument, Interest Rate, Stated Percentage
Interest rate on notes
Building [Member]
Building
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period
Common stock issued under the plan
Additional Paid in Capital, Common Stock
Additional paid-in capital
Finance Lease, Liability, to be Paid, after Year Five
Thereafter
Payments to Acquire Businesses, Net of Cash Acquired, Total
Payments to Acquire Businesses, Net of Cash Acquired
Acquisitions, net of cash acquired
Scenario [Axis]
Scenario
Business combination number of California ready mix operations.
Business Combination Number Of California Ready Mix Operations
Business combination number of California ready mix operations
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark
Trade receivable credit facility.
Trade Receivable Credit Facility [Member]
Trade Receivable Facility
Entity Filer Category
Entity Filer Category
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment
Plan amendments
Deferred Tax Liabilities, Investments
Partnerships and joint ventures
Prior service cost (credit)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Other comprehensive earnings (loss), net of tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Property, plant and equipment
Other operating income and expense.
Other Operating Income And Expense [Table]
Other Operating Income And Expense [Table]
Entity Current Reporting Status
Entity Current Reporting Status
Cash paid for amount included in measurement of lease liabilities.
Cash Paid For Amount Included In Measurement Of Lease Liabilities
Cash paid for amounts included in the measurement of lease liabilities:
Inventory, Net
Inventories, net
Inventories, net
Current State and Local Tax Expense (Benefit)
Current
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Aggregate intrinsic values for options exercisable
Inventory Disclosure [Text Block]
Inventories, Net
Deferred tax assets, valuation and other reserves.
Deferred Tax Assets Valuation And Other Reserves
Valuation and other reserves
Other Comprehensive Income (Loss), Defined Benefit Plan, Transition Asset (Obligation), Reclassification Adjustment from AOCI, before Tax
Settlement charge
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent
Other assets
Inventory [Domain]
Inventory
Liabilities reclassified from/(to) assets held for sale
Asset retirement obligation, liabilities reclassified to held for sale.
Asset Retirement Obligation Liabilities Reclassified To Held For Sale
Stockholders' Equity Note Disclosure [Text Block]
Shareholders' Equity
Restricted Cash and Cash Equivalents [Abstract]
Business Combinations [Abstract]
Finite-Lived Intangible Assets, Net, Ending Balance
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net
Net Balance
Stockholders' Equity Attributable to Parent, Ending Balance
Stockholders' Equity Attributable to Parent, Beginning Balance
Stockholders' Equity Attributable to Parent
Total Shareholders’ Equity
Effective income tax rate reconciliation change in tax status of subsidiary.
Effective Income Tax Rate Reconciliation Change In Tax Status Of Subsidiary
Change in tax status of subsidiary
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
Schedule of Expected Benefit Payments [Table Text Block]
Schedule of Expected Benefit Payments
Income tax.
Income Tax [Table]
Income Tax [Table]
Noncash or Part Noncash Acquisition, Fixed Assets Acquired
Acquisition of assets through asset exchange
2024
Long-Term Debt, Maturity, Year Two
Documents Incorporated by Reference [Text Block]
Documents Incorporated by Reference
Entity Tax Identification Number
Entity Tax Identification Number
Income Statement Location [Axis]
Income Statement Location
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Number of Awards, Forfeited
Common stock ($0.01 par value; 100.0 shares authorized; 62.X and 62.4 shares outstanding at December 31, 2022 and 2021, respectively)
Common Stock, Value, Issued
Consolidation Items [Axis]
Consolidation Items
Retained Earnings (Accumulated Deficit), Total
Retained Earnings (Accumulated Deficit)
Retained earnings
Inventory Valuation Reserves
Less: allowances
Equity Components [Axis]
Accumulated Other Comprehensive Loss
Due from Affiliates
Due from affiliate
Acquisition and integration expenses
Business Combination, Acquisition Related Costs
Excluding acquisition bridge debt.
Excluding Acquisition Bridge Debt [Member]
Excluding Acquisition Bridge Debt
Accounting Standards Update [Domain]
Accounting Standards Update
Accounting Standards Update 2016-13 [Member]
ASU 2016-13
Balance of top five surety bonds.
Balance Of Top5 Surety Bonds
Balance of top 5 surety bonds
Lessee remaining lease term.
Lessee Remaining Lease Term
Financing lease term
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash, Cash Equivalents and Restricted Cash
Legacy TXI plan.
Legacy T X I Plan [Member]
Legacy TXI plan
Leases [Abstract]
Contract with Customer, Liability, Total
Contract with Customer, Liability
Billings in excess of costs
Debt Instruments [Abstract]
East group.
East Group [Member]
East Group
Customer Relationships [Member]
Customer Relationships
Three point two zero zero percent senior notes, due twenty fifty one.
Three Point Two Zero Zero Percent Senior Notes Due Twenty Fifty One [Member]
3.200% Senior Notes, Due 2051
Surety Bonds
Surety Bonds [Member]
Surety Bonds.
Basic and diluted net income loss from continuing operations attributable to common shareholders of reporting entity.
Basic And Diluted Net Income Loss From Continuing Operations Attributable To Common Shareholders Of Reporting Entity
Basic and diluted net earnings from continuing operations attributable to common shareholders attributable to Martin Marietta
2025
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
Entity Emerging Growth Company
Entity Emerging Growth Company
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule Of Business Acquisitions By Acquisition [Table]
Defined Benefit Plan, Interest Cost
Interest cost
Energy and service contracts.
Energy And Service Contracts [Member]
Energy And Service Contracts
Income (Loss) from Continuing Operations, Per Diluted Share
Diluted from continuing operations attributable to common shareholders
Prior service cost arising during period, net of tax of $(11.8), $0.0 and $0.0, respectively
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax
Number of states in which entity operates
Number of States in which Entity Operates
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax
Actuarial (gain) loss
Current Federal Tax Expense (Benefit)
Current
Goodwill [Line Items]
Goodwill [Line Items]
Retirement Plan Type [Domain]
Retirement Plan Type
Commitments and contingencies.
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Schedule of Accounts Receivable Net
Diluted from discontinued operations attributable to common shareholders
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share, Total
Revenue, Performance Obligation, Description of Timing
Performance obligations, description of timing
Deferred tax liabilities right of use assets.
Deferred Tax Liabilities Right Of Use Assets
Right-of-use assets
Amortization of prior service cost (credit), net of tax of $0.9, $0.0 and $0.0, respectively
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax
Defined Benefit Plan, Plan Assets, Category [Domain]
Defined Benefit Plan, Plan Assets, Category
Schedule of Stock by Class [Table]
Schedule Of Stock By Class [Table]
Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain]
Unconditional Purchase Obligation, Category of Goods or Services Acquired
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax
Amortization of actuarial loss, tax
Lessee, Operating Lease, Liability, to be Paid [Abstract]
Operating Leases
Defined Benefit Plan, Service Cost
Service cost
Debt Instrument, Redemption, Period Five [Member]
Prior to January 15, 2051 (2051 Par Call Date)
Entity Voluntary Filers
Entity Voluntary Filers
Deferred Federal Income Tax Expense (Benefit)
Deferred
Income Tax Uncertainties, Policy [Policy Text Block]
Uncertain Tax Positions
Retirement Benefits [Abstract]
Document Transition Report
Document Transition Report
Operating Loss Carryforwards, Valuation Allowance
Deferred tax asset, valuation allowance
2025
Long-Term Debt, Maturity, Year Three
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Weighted-Average Grant-Date Fair Value, Awarded
Weighted-average grant-date fair value of stock awards, granted
Depreciation, Depletion and Amortization, Total
Depreciation, Depletion and Amortization
Depreciation, depletion and amortization
Schedule of Segment Reporting Information, by Segment [Table]
Schedule Of Segment Reporting Information By Segment [Table]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Components of Changes in Accumulated Other Comprehensive Loss and Related Cumulative Noncurrent Deferred Tax Assets
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Exercised
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Foreign pretax earnings
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive loss
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts receivable, net
Surety bonds.
Surety Bonds
Surety bonds
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Estimated contribution of pension plans
Domestic.
Domestic [Member]
Domestic
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Deferred State and Local Income Tax Expense (Benefit)
Deferred
Property, plant and equipment
Finance Lease, Right-of-Use Asset, before Accumulated Amortization
Magnesia specialties.
Magnesia Specialties [Member]
Magnesia Specialties
Other Comprehensive Income (Loss), Net of Tax
Other Comprehensive Income (Loss), Net of Tax
Other comprehensive loss / earnings
Pro Forma [Member]
Pro Forma
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
Schedule of Change in Projected Benefit Obligation
Cash Flow, Supplemental Disclosures [Text Block]
Supplemental Cash Flow Information
Long-Term Purchase Commitment [Table Text Block]
Schedule of Contractual Purchase Commitments
Net Income (Loss) Attributable to Parent
Net Earnings Attributable to Martin Marietta
Significant accounting policies.
Significant Accounting Policies [Line Items]
Significant Accounting Policies [Line Items]
Operating Lease, Liability, Current
Operating lease liabilities
Current operating lease liabilities
Less: current lease obligations
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Defined benefit pension and postretirement plans:
Defined Contribution Plan, Description
Defined contribution plan name
Balance sheet classifications of operating and finance leases.
Balance Sheet Classifications Of Operating And Finance Leases Table [Text Block]
Summary of Balance Sheet Classifications of Operating and Finance Leases
Additional Paid-in Capital [Member]
Additional Paid-In Capital
Debt Instrument, Redemption Price, Percentage
Debt instrument redemption price percentage
Payment, Tax Withholding, Share-Based Payment Arrangement
Shares withheld for employees’ income tax obligations
2024
Future share-based compensation expense year two.
Future Share Based Compensation Expense Year Two
Line of Credit Facility, Expiration Date
Debt instrument maturity period
Deferred Tax Assets, Operating Loss Carryforwards, Total
Deferred Tax Assets, Operating Loss Carryforwards
Deferred tax assets recognized
Net operating loss carryforwards
Schedule of Maturities of Long-Term Debt [Table Text Block]
Schedule of Corporation's Long-Term Debt Maturities
Property, Plant and Equipment, Additions
Total property additions, including the impact of acquisitions
Share based compensation arrangement by share based payment award number of additional shares available for grant.
Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Available For Grant
Additional shares issuance under the plan
Entity Registrant Name
Entity Registrant Name
4.250% Senior Notes, Due 2024
Four Point Two Five Zero Percent Senior Notes Due Twenty Twenty Four [Member]
4.250% Senior Notes, Due 2024
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Lapse of statute of limitations
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Foreign currency translation gain
Royalty commitments future minimum payments due.
Royalty Commitments Future Minimum Payments Due
Total
Accounts Receivable, Allowance for Credit Loss, Current
Less: allowance for estimated credit losses
Cash and Cash Equivalents, at Carrying Value, Total
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents
Stock Repurchase Program, Number of Shares Authorized to be Repurchased
Stock repurchase program, shares authorized to be repurchased
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent
Property, plant and equipment
Debt Instrument, Maturity Date
Maturity Date
Maturity date
Lessee, Lease, Description [Table]
Lessee Lease Description [Table]
Share-Based Payment Arrangement, Noncash Expense, Total
Share-Based Payment Arrangement, Noncash Expense
Stock-based compensation expense
Stock-based compensation expense recognized
Statement of Comprehensive Income [Abstract]
Four point two five zero percent senior notes due twenty fourty seven.
Four Point Two Five Zero Percent Senior Notes Due Twenty Fourty Seven [Member]
4.250% Senior Notes, Due 2047
Property, Plant and Equipment, Net, Total
Property, Plant and Equipment, Net
Property, plant and equipment, net
Finance Lease, Right-of-Use Asset, Amortization
Amortization of right-of-use assets
Award Type [Domain]
Award Type
Statement [Line Items]
Statement [Line Items]
Product Information [Line Items]
Product Information [Line Items]
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture, Total
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Issuances of common stock for stock award plans
Accounts and Other Receivables, Net, Current
Accounts receivable, net
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Earnings from discontinued operations, net of income tax expense
Goodwill Increased
Goodwill, Purchase Accounting Adjustments
Title of 12(b) Security
Title of 12(b) Security
Finite-Lived Intangible Assets, Gross, Total
Finite-Lived Intangible Assets, Gross
Gross Amount
Ratio of consolidated net debt to earnings before interest taxes depreciation depletion and amortization.
Ratio Of Consolidated Net Debt To Earnings Before Interest Taxes Depreciation Depletion And Amortization
Debt covenant
California and Colorado.
California And Colorado [Member]
CALIFORNIA and COLORADO
Common Stock [Member]
Common Stock
Property, plant and equipment, additions through acquisitions.
Property Plant And Equipment Additions Through Acquisitions
Property additions through acquisitions
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period
Employee stock options expiration date
Net gain (loss) arising during period, net of tax of $28.6, $16.8 and $(8.7), respectively
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Net Cash Provided by (Used in) Operating Activities [Abstract]
Cash Flows from Operating Activities:
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax
Net earnings from continuing operations attributable to Martin Marietta
Equity Component [Domain]
Equity Component
Revolving line of credit expires in august two thousand fifteen.
Revolving Line Of Credit Expires In August Two Thousand Fifteen [Member]
Revolving Line Of Credit Expires In August 2015
Expendable parts inventory.
Expendable Parts Inventory [Member]
Expendable Parts Inventory
Consolidated total revenues
Service revenues
Total Revenues
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Earnings from continuing operations before income tax expense
Finance Lease, Liability, Undiscounted Excess Amount
Less: imputed interest
Schedule of Cash and Cash Equivalents [Table Text Block]
Reconciliation of Cash, Cash Equivalents and Restricted Cash
Entity Address, State or Province
Entity Address, State or Province
2026
Lessee, Operating Lease, Liability, to be Paid, Year Four
Geographical [Axis]
Geographical
Continuing Operations [Member]
Continuing Operations
Pretax earnings
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Consolidated comprehensive earnings
Document Type
Document Type
Interest Paid, Excluding Capitalized Interest, Operating Activities
Cash paid for interest, net of amount capitalized
Business Acquisition, Pro Forma Information [Table Text Block]
Summary of Unaudited Pro Forma Financial Information
Significant accounting policies.
Significant Accounting Policies [Table]
Significant Accounting Policies [Table]
Defined Benefit Plan, Amortization of Gain (Loss)
Actuarial gain (loss)
Actuarial (gain) loss
Receivables [Abstract]
Entity Shell Company
Entity Shell Company
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Prior service cost (credit) - Gross
Increase (Decrease) in Inventories, Total
Increase (Decrease) in Inventories
Inventories, net
Minimum likelihood for recognition of tax benefit related to uncertain tax position.
Minimum Likelihood For Recognition Of Tax Benefit Related To Uncertain Tax Position
Minimum likelihood for recognition of tax benefit related to uncertain tax position
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Other Inventory, Supplies, Gross
Supplies and expendable parts
Proceeds from divestitures
Proceeds from Divestiture of Businesses
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate
Year the rate reaches the ultimate rate
Option to terminate lease
Lessee Option To Terminate
Lessee option to terminate.
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Gross benefits paid
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent
Intangible assets, excluding goodwill
Debt Securities [Member]
Debt Securities
Floating rate senior notes due twenty twenty.
Floating Rate Senior Notes Due Twenty Twenty [Member]
Floating Rate Senior Notes Due Twenty Twenty
Schedule of business combinations and dispositions table.
Schedule Of Business Combinations And Dispositions [Table]
Schedule Of Business Combinations And Dispositions [Table]
Operating loss carryforwards, expiration year
Operating Loss Carry Forwards Expiration Year
Operating loss carry forwards expiration year.
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification Out Of Accumulated Other Comprehensive Income [Table]
2023
Royalty commitments future minimum payments due next 12 months.
Royalty Commitments Future Minimum Payments Due Next Twelve Months
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Equity:
Security Exchange Name
Security Exchange Name
Goodwill and Other Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Revenue from Contract with Customer [Abstract]
Class of Stock [Line Items]
Class of Stock [Line Items]
Finance Lease, Liability, Noncurrent
Other noncurrent liabilities
Total long-term lease obligations
Earnings from discontinued operations, net of income tax expense
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent
Interest only loan receivable.
Interest Only Loan Receivable [Member]
Interest-only loan receivable
Net Cash Provided by (Used in) Operating Activities
Net Cash Provided by Operating Activities
Asset Retirement Obligation, Revision of Estimate
Revisions in estimated cash flows
Revenue, Segment Benchmark [Member]
Sales Revenue Segment
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Weighted-average period over which unrecognized compensation cost will be recognized
Weighted-Average Remaining Contractual Life (years), Outstanding at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Debt instrument, redemption, period six.
Debt Instrument Redemption Period Six [Member]
On or After 2051 Par Call Date and Prior to Maturity
Debt Instrument, Interest Rate, Effective Percentage
Effective Interest Rate
Cumulative shares issued under shareholder value achievement plan.
Cumulative Shares Issued Under Shareholder Value Achievement Plan
Common stock issued under the plan
2025
Future share-based compensation expense year three.
Future Share Based Compensation Expense Year Three
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive earnings (loss), net of tax:
Payments to Acquire Businesses, Gross
Cash transferred in business combination
Commitments and Contingencies Disclosure [Abstract]
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Shares withheld for employees’ income tax obligations
Operating Lease, Cost
Operating lease cost
Two point five zero zero percent senior notes due two thousand thirty.
Two Point Five Zero Zero Percent Senior Notes Due Two Thousand Thirty [Member]
2.500% Senior Notes, Due 2030
Interest Payable, Current
Accrued interest
Income taxes.
Income Taxes [Line Items]
Income Taxes [Line Items]
Defined Benefit Plan, Equity Securities, US, Mid Cap [Member]
Mid-sized to Large Cap
Ready mixed concrete.
Ready Mixed Concrete [Member]
Ready Mixed Concrete
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Discount rate
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Schedule of Unrecognized Tax Benefits Excluding Interest Correlative Effects
Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five
Thereafter
Consolidation, Policy [Policy Text Block]
Basis of Consolidation
2024
Finance Lease, Liability, to be Paid, Year Two
US Treasury (UST) Interest Rate [Member]
Treasury Rate
Business Acquisition, Pro Forma Revenue
Total revenues
Aggregates.
Aggregates [Member]
Aggregates
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets
Total Assets
Disposal group, including discontinued operation, valuation allowance for loss on sale.
Disposal Group Including Discontinued Operation Valuation Allowance For Loss On Sale
Valuation allowance for loss on sale
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Actuarial (gain) loss
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Liabilities:
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Summary Information for Stock Options
New Accounting Pronouncements, Policy [Policy Text Block]
New Accounting Pronouncements
Receivable [Policy Text Block]
Accounts Receivable
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule Of Defined Benefit Plans Disclosures [Table]
Common Stock, Shares, Outstanding
Ending Balance (in shares)
Beginning Balance (in shares)
Common stock, shares outstanding
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Inventory, Work in Process, Gross
Products in process
Debt Disclosure [Text Block]
Long-Term Debt
Fair Value, Inputs, Level 2 [Member]
Significant Observable Inputs (Level 2)
Proceeds from Issuance of Long-Term Debt, Total
Proceeds from Issuance of Long-Term Debt
Borrowings of long-term debt
Start-up Activities, Cost Policy [Policy Text Block]
Start-Up Costs
Net Cash Provided by (Used in) Investing Activities [Abstract]
Cash Flows from Investing Activities:
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Estimated Amortization Expense of Intangible Assets
Real Estate [Member]
Real Estate
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Gross increases – tax positions in current year
Income Tax Authority, Name [Domain]
Income Tax Authority, Name
Number of quarries and yards.
Number Of Quarries And Yards
Number of quarries and yards
Liability, Defined Benefit Pension Plan, Noncurrent
Noncurrent pension, postretirement and postemployment benefits
Variable Rate [Domain]
Variable Rate
Minimum [Member]
Minimum
Debt Instrument, Redemption, Period Three [Member]
Prior to April 15, 2031 (2031 Par Call Date)
Income Tax Authority, Name [Axis]
Income Tax Authority, Name
Capital Addition Purchase Commitments [Member]
Capital Addition Purchase Commitments
2026
Royalty commitments future minimum payments due year four.
Royalty Commitments Future Minimum Payments Due Year Four
Segments [Domain]
Segments
Weighted-Average Exercise Price, Exercisable at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Accounting Standards Update [Axis]
Accounting Standards Update
Customer payment terms based on contractual billing.
Customer Payment Terms Based On Contractual Billing
Customer payments terms based on contractual billing
Debt Instrument [Axis]
Debt Instrument
Number of days Restricted from utilizing cash.
Number Of Days Restricted From Utilizing Cash
Number of days restricted from utilizing cash
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
State income taxes, net of federal tax benefit
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Earnings from continuing operations
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Segments [Axis]
Segments
Current Foreign Tax Expense (Benefit)
Current
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Actual return on plan assets, net
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Weighted-Average Grant-Date Fair Value, Forfeited
Foreign.
Foreign [Member]
Foreign
Deferred tax assets lease liability.
Deferred Tax Assets Lease Liability
Lease liabilities
Amortization of Intangible Assets
Amortization expense of intangible assets
Award Type [Axis]
Award Type
Other Noncash Income (Expense), Total
Other Noncash Income (Expense)
Other items, net
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Unrecognized compensation cost
Due from Affiliate, Current
Due from unconsolidated affiliates
Private infrastructure
Defined benefit plan private infrastructure.
Defined Benefit Plan Private Infrastructure [Member]
Deferred Tax Assets, Gross
Gross deferred tax assets
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Aggregate intrinsic values of options exercised
Other nonoperating income, net
Other Nonoperating Income (Expense), Total
Other Nonoperating Income (Expense)
Current maturities of discharged long-term debt
Long-Term Debt, Current Maturities, Total
Long-Term Debt, Current Maturities
Less: current maturities
Discontinued Operations and Disposal Groups [Abstract]
2024
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
Basis of presentation and use of estimates.
Basis Of Presentation And Use Of Estimates Policy [Text Block]
Basis of Presentation and Use of Estimates
Prior service cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax, Total
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax
Pretax earnings from operations
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax
Lessee, Operating Lease, Liability, to be Paid
Total lease payments
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Gross decreases – tax positions in prior years
Award Date [Axis]
Award Date
Discontinued Operation, Tax Effect of Discontinued Operation
Income tax expense
Entity Central Index Key
Entity Central Index Key
Other Income and Expenses [Abstract]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Surety bonds
Guarantor Obligations, Current Carrying Value
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Right-of-use assets obtained in exchange for new finance lease liabilities
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage
Total
Accounting Policies [Abstract]
2025
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period
Finance lease costs.
Finance Lease Costs [Abstract]
Finance lease cost:
Fair Value Measured at Net Asset Value Per Share [Member]
Net Asset Value
Property, plant and equipment, net
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Percent
Federal tax credits
Incremental borrowing rate.
Incremental Borrowing Rate
Estimated incremental percentage on interest rate
Property, Plant and Equipment [Table]
Schedule Of Property Plant And Equipment [Table]
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component
Reduction in pension expense
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date
Finance Lease, Weighted Average Discount Rate, Percent
Finance leases
Other Intangible Assets, Net
Other intangibles, net
Consolidation Items [Domain]
Consolidation Items
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Awards available for grant
Share-Based Payment Arrangement [Text Block]
Stock-Based Compensation
Disposal group, including discontinued operation, lease obligations noncurrent.
Disposal Group Including Discontinued Operation Lease Obligations Noncurrent
Lease obligations
West Group
Building materials business west group.
Building Materials Business West Group [Member]
Building Materials Business West Group
Building materials business east group.
Building Materials Business East Group [Member]
Building Materials Business East Group
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax
Prior service cost (credit) - Net of tax
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]
Weighted-Average Exercise Price, Outstanding at January 1, 2022
Weighted-Average Exercise Price, Outstanding at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Finance Lease, Principal Payments
Financing cash flows used for finance leases
Payments on finance lease obligations
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position
Accrued benefit credit (cost)
Net amount recognized at end of year
Two point four zero zero percent senior notes, due twenty thirty one.
Two Point Four Zero Zero Percent Senior Notes Due Twenty Thirty One [Member]
2.400% Senior Notes, Due 2031
Lease, Cost
Total lease cost
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Right-of-use assets obtained in exchange for new operating lease liabilities
Four point two five percent senior notes due twenty twenty four.
Four Point Two Five Percent Senior Notes Due Twenty Twenty Four [Member]
4.25% Senior Notes, Due 2024
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile consolidated net earnings to net cash provided by operating activities:
Retained Earnings [Member]
Retained Earnings
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions
Gross decreases – tax positions in current year
Segment Reporting [Abstract]
Effective Income Tax Rate Reconciliation, Percent
Effective income tax rate
Deferred Tax Assets, Other Comprehensive Loss
Cumulative noncurrent deferred tax assets at end of period
Accumulated other comprehensive loss
Schedule of Goodwill [Table]
Schedule Of Goodwill [Table]
SOFR Member
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Revenues
Disposal Group, Including Discontinued Operation, Consideration
Goodwill, Acquired During Period
Acquisitions
Long-Term Debt, Maturity, after Year Five
Thereafter
Remeasurement of operating lease right of use assets.
Remeasurement Of Operating Lease Right Of Use Assets
Remeasurement of operating lease right-of-use assets
Accumulated Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), after Tax
Actuarial (gain) loss - Net of tax
Performance obligation period.
Performance Obligation Period
Performance obligations, period
Allowance for inventories in excess of sales requisite record period.
Allowance For Inventories In Excess Of Sales Requisite Record Period
Allowance for inventories in excess of sales requisite record period
Intangibles assets acquired
Finite-Lived Intangible Assets Acquired
Total subject to amortization
Disposal group, including discontinued operation, lease obligations current.
Disposal Group Including Discontinued Operation Lease Obligations Current
Lease obligations
Entity Interactive Data Current
Entity Interactive Data Current
Tax Credit Carryforward, Amount
Domestic and foreign tax credits, amount
Entity Public Float
Entity Public Float
Defined Benefit Plan, Real Estate [Member]
Real Estate
2023
Unrecorded Unconditional Purchase Obligation, to be Paid, Year One
Letters of Credit Outstanding, Amount
Outstanding letters of credit
Affiliate line of credit facility maturity period
Affiliate Line of Credit Facility Maturity Period
Line of credit maturity period
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Intangible assets, other than goodwill
Payments of Ordinary Dividends, Noncontrolling Interest
Distributions to owners of noncontrolling interest
Operating Activities [Domain]
Operating Activities
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets
Expected long-term rate of return on assets
2023
Lessee, Operating Lease, Liability, to be Paid, Year One
Amortization of actuarial loss, net of tax of $0.8, $2.9 and $3.6, respectively
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Defined Benefit Plan, Assumptions [Table Text Block]
Schedule of Weighted-Average Assumptions
Discontinued Operations
Discontinued Operations, Held-for-sale [Member]
Asset retirement obligation depreciation and accretion.
Asset Retirement Obligation Depreciation And Accretion
Asset retirement obligation depreciation and accretion
Local Phone Number
Local Phone Number
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Statutory income tax rate
Unrecognized Tax Benefits
Unrecognized tax benefits at end of year
Unrecognized tax benefits at beginning of year
0.650% Senior Notes
Zero Point Six Five Zero Percent Senior Notes [Member]
Zero point six five zero percent senior notes.
Depreciation and depletion and amortization excluding portion attributable to machinery and equipment under capital leases.
Depreciation And Depletion And Amortization Excluding Portion Attributable To Machinery And Equipment Under Capital Leases
Depreciation, depletion and amortization
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Basic and Diluted Earnings from Continuing Operations Per Common Share
Revenues and gross profit.
Revenues And Gross Profit [Abstract]
Defined Benefit Plan, Benefit Obligation
Net projected benefit obligation at end of year
Net projected benefit obligation at beginning of year
Debt Disclosure [Abstract]
Tax benefits for stock options exercised
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit
Net Income (Loss) Attributable to Noncontrolling Interest, Total
Net Income (Loss) Attributable to Noncontrolling Interest
Less: Net earnings attributable to noncontrolling interests
Lessee finance leases.
Lessee Finance Leases [Abstract]
Finance Leases:
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock performance based.
Restricted Stock Performance Based [Member]
Restricted Stock - Performance Based Awards
Other Nonoperating Income, Net
Other Nonoperating Income and Expense [Text Block]
Number of Options, Exercisable at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Mineral reserves and interests.
Mineral Reserves And Interests [Member]
Mineral Reserves and Interests
Schedule of Other Significant Noncash Transactions [Table Text Block]
Schedule of Noncash Investing and Financing Activities
Other Liabilities, Noncurrent
Other noncurrent liabilities
2027
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
Liability, Defined Benefit Pension Plan, Current
Current pension and postretirement benefits
Income Statement Location [Domain]
Income Statement Location
Number of Railcar Purchase
Number of Railcar Purchase
Number of railcar purchase.
2023
Long-Term Debt, Maturity, Year One
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities
Total Liabilities
Royalty commitments future minimum payments due after year five.
Royalty Commitments Future Minimum Payments Due After Year Five
Thereafter
Asset Retirement Obligation, Total
Asset Retirement Obligation
Balance at end of year
Balance at beginning of year
Property, Plant and Equipment [Abstract]
Number of Awards, December 31, 2022
Number of Awards, January 1, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Accounting Standards Update 2018-14 [Member]
ASU 2018-14
Long-Term Debt
Long-term debt, carrying values
Total debt
Line of Credit Facility, Remaining Borrowing Capacity
Available for borrowing under revolving facility
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Debt Instrument, Redemption, Period Four [Member]
On or After 2031 Par Call Date and Prior to Maturity
Inventory Disclosure [Abstract]
Lessee operating and finance leases.
Lessee Operating And Finance Leases [Text Block]
Leases
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation
Operating and finance lease liabilities
Number of Options, Outstanding at January 1, 2022
Number of Options, Outstanding at December 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Share price
Share Price
Six point two five percentage of senior notes due two thousand thirty seven.
Six Point Two Five Percentage Of Senior Notes Due Two Thousand Thirty Seven [Member]
6.25% Senior Notes, Due 2037
Zero point six five zero percent senior notes, due twenty twenty three.
Zero Point Six Five Zero Percent Senior Notes Due Twenty Twenty Three [Member]
0.650% Senior Notes, Due 2023
Debt Instrument, Name [Domain]
Debt Instrument, Name
Document Fiscal Year Focus
Document Fiscal Year Focus
Accrued other taxes current.
Accrued Other Taxes Current
Accrued other taxes
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax, Per Share, Diluted
Diluted net earnings from continuing operations per share
Gains on divestitures, sales of assets and extinguishment of debt
Gain Loss On Disposition Of Assets And Extinguishment of Debt
Gain loss on disposition of assets and extinguishment of debt
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed
2024
Lessee, Operating Lease, Liability, to be Paid, Year Two
The amount by which consolidated debt, for purposes of calculating the debt covenant ratio, may be reduced for unrestricted cash and cash equivalents, provided no amounts are outstanding under the revolving credit facility and the AR credit facility.
Consolidated Debt Reduction For Unrestricted Cash And Cash Equivalents For Debt Covenant Calculation
Reduction of consolidated debt in the debt ratio calculation
Earnings Per Share, Basic
Basic attributable to common shareholders
Income (Loss) from Continuing Operations, Per Basic Share
Basic from continuing operations attributable to common shareholders
Common Stock, Dividends, Per Share, Declared
Dividends declared
Percentage of incentive compensation to acquire shares maximum.
Percentage Of Incentive Compensation To Acquire Shares Maximum
Percentage of incentive compensation to acquire shares, maximum
Top five surety bonds percentage.
Top5 Surety Bonds Percentage
Percentage of top 5 surety bonds
Dividends, Common Stock, Cash
Dividends declared
Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent
Goodwill
Business combinations.
Business Combinations [Line Items]
Business Combinations [Line Items]
2023
Future minimum lease commitments related to contracts of affreightment due next twelve months.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due Next Twelve Months
Gross profit (loss)
Gross Profit
Gross profit (loss)
Gross Profit
Cash used for operating and investing activities for discontinued operations.
Cash Used For Operating And Investing Activities For Discontinued Operations
Cash used for operating and investing activities for discontinued operations
Proceeds from Sales of Business, Affiliate and Productive Assets
Proceeds from divestitures and sales of assets
Schedule of Long-Term Debt Instruments [Table Text Block]
Long-Term Debt
Line of Credit Facility, Expiration Period
Senior unsecured revolving facility, maturity period
2024
Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two
Debt instrument, face amount
Debt Instrument, Face Amount
Principal Amount
Lehigh West Region, Southern Crushed Concrete and Tiller Corporation.
Lehigh West Region Southern Crushed Concrete And Tiller Corporation [Member]
Lehigh West Region, SCC and Tiller
Disposal Group, Including Discontinued Operation, Other Assets, Current
Other assets
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark
2026
Future share-based compensation expense year four.
Future Share Based Compensation Expense Year Four
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Schedule of Amounts Recognized on Consolidated Balance Sheets
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Intangible Assets Deemed to Indefinite Life that are Therefore Not Amortized
Percentage of aggregates business net sales in top five sales states.
Percentage Of Aggregates Business Net Sales In Top Five Sales States [Member]
Percentage of Aggregates Business Net Sales in Top Five Sales states
Land [Member]
Land
Inventory, Gross
Total inventories
Income Taxes Paid, Net, Total
Income Taxes Paid, Net
Cash paid for income taxes
Remeasurement of finance lease right-of-use assets.
Remeasurement Of Finance Lease Right Of Use Assets
Remeasurement of finance lease right-of-use assets
2027
Future share-based compensation expense year five.
Future Share Based Compensation Expense Year Five
Asset Retirement Obligation, Accretion Expense
Accretion expense
Property, Plant and Equipment, Policy [Policy Text Block]
Property, Plant and Equipment
Percentage of employees represented in labor union.
Percentage Of Employees Represented In Labor Union
Percentage of employees represented in labor union
Income Tax Authority [Axis]
Income Tax Authority
Increase (Decrease) in Accounts Payable, Trade
Accounts payable
Deferred Tax Assets, Net of Valuation Allowance
Total net deferred tax assets
Consolidated net earnings
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Consolidated net earnings
Supplies inventory.
Supplies Inventory [Member]
Supplies Inventory
Assets, Current [Abstract]
Current Assets:
2026
Finite-Lived Intangible Asset, Expected Amortization, Year Four
Cargo and Freight [Member]
Freight
Third-party railroad track maintenance expenses.
Third Party Railroad Track Maintenance Expenses
Third-party railroad track maintenance expense
Accrued Insurance, Noncurrent
Liability reserve for insurance claims
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Other comprehensive (loss) earnings before reclassifications, net of Tax
2024
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Tax credit carry forward, expiration year.
Tax Credit Carry Forward Expiration Year
Domestic tax credits, expiration year
Business combination recognized identifiable assets acquired and liabilities assumed mineral reserves.
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Mineral Reserves
Mineral reserves
Segment Reporting Disclosure [Text Block]
Segments
Unrecorded Unconditional Purchase Obligation
Purchase commitments for property, plant and equipment
Total
Retirement plans and postretirement benefits amortized amount representing percentage of greater of projected benefit obligation or pension plan assets.
Retirement Plans And Postretirement Benefits Amortized Amount Representing Percentage Of Greater Of Projected Benefit Obligation Or Pension Plan Assets
Retirement plans and postretirement benefits amortized amount representing percentage of greater of projected benefit obligation or pension plan assets.
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Recognized Comprehensive Earnings
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Components of Deferred Tax Assets and Liabilities
Defined benefit plans remeasurement increased
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax
Schedule of Goodwill [Table Text Block]
Changes in Goodwill
Disposal Group, Including Discontinued Operation, Inventory, Current
Inventories, net
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]
Supplemental Cash Flow Elements [Abstract]
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Gross increases – tax positions in prior years
Defined Contribution Plan, Employer Discretionary Contribution Amount
Corporation's matching obligations
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature
Acquired finite and indefinite lived intangible assets.
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Acquired Finite And Indefinite Lived Intangible Assets [Line Items]
Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities, net of effects of acquisitions and divestitures:
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Health care cost trend rate assumed for next year
Federal Income Tax Expense (Benefit), Continuing Operations
Total federal income taxes
Subsegments Consolidation Items [Axis]
Subsegments Consolidation Items
Increase in interest income
Interest Income, Short-Term Investment, Increase (Decrease)
Defined Benefit Plan, Plan Assets, Contributions by Employer
Employer contributions
Combined pension plan and SERP contributions
Cover [Abstract]
Concentration Risk, Percentage
Total net sales, percentage
Product and Service [Domain]
Product and Service
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life
Weighted-average amortization period
2027
Lessee, Operating Lease, Liability, to be Paid, Year Five
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Number of Awards, Distributed
Inventory, Finished Goods, Gross
Finished products
Liabilities, Current [Abstract]
Current Liabilities:
Noncompete Agreements [Member]
Noncompetition agreements
Maximum [Member]
Maximum
Deferred Tax Assets, Inventory
Inventories
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested
Aggregate intrinsic values for stock awards
Number of railcars commitment.
Number of Railcars Commitment
Number of Rail Cars Commitment
Number of cement plants.
Number Of Cement Plants
Number of cement plants
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent, Total
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent
Noncurrent liabilities held for sale
Total noncurrent liabilities held for sale
Sales taxes.
Sales Taxes Policy [Text Block]
Sales Taxes
Net Cash Provided by (Used in) Investing Activities
Net Cash Used for Investing Activities
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Number of Options, Exercised
Asset Retirement Obligation, Liabilities Incurred
Liabilities incurred and liabilities assumed in business combinations
Woodville.
Woodville [Member]
Woodville
Goodwill and Intangible Assets Disclosure [Text Block]
Goodwill and Other Intangible Assets
Schedule of Inventory, Current [Table Text Block]
Schedule of Inventories Net
Commitments and contingencies.
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Fair Value, Inputs, Level 3 [Member]
Significant Unobservable Inputs (Level 3)
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
Schedule of Stock-Based Compensation Expense
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Pension and Postretirement Benefit Plans
Debt Instrument, Basis Spread on Variable Rate
Basis spread on variable rate
Deferred Tax Liabilities, Gross, Total
Deferred Tax Liabilities, Gross
Total deferred tax liabilities
Future minimum lease commitments related to contracts of affreightment due after year five.
Future Minimum Lease Commitments Related To Contracts Of Affreightment Due After Year Five
Thereafter
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
2027
Finite-Lived Intangible Asset, Expected Amortization, Year Five
Deferred tax liabilities employee benefits.
Deferred Tax Liabilities Employee Benefits
Employee benefits
Property, Plant and Equipment, Useful Life
Property, plant and equipment, Service Lives, Years
Inventory [Axis]
Inventory
2025
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Common Stock, Shares Authorized
Common stock, shares authorized
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Rate to which the cost trend rate gradually declines
Maintenance Cost, Policy [Policy Text Block]
Repair and Maintenance Costs
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement
Settlement (charge) credit
Settlement charge (credit)
Trading Symbol
Trading Symbol
Equity Securities [Member]
Equity Securities
Investment land
Real Estate, Land, Held-for-Sale
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Reclassification Out of Accumulated Other Comprehensive Loss
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Colorado and Central Texas
Colorado and Central Texas [Member]
Colorado and Central Texas
Parent [Member]
Total Shareholders' Equity
Selling, General and Administrative Expense, Total
Selling, General and Administrative Expense
Selling, general and administrative expenses
Deferred Tax Assets, Other
Other items, net
Lehigh Hanson, Incorporation West Region [Member]
Lehigh Hanson Incorporation West Region [Member]
Lehigh West Region
Common stock price.
Common Stock Price
Common stock price
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax
Actuarial (gain) loss - Gross
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive Earnings Attributable to Martin Marietta
Decrease in unrecognized tax benefits is reasonably possible, excluding interest and correlative effects.
Decrease In Unrecognized Tax Benefits Is Reasonably Possible Excluding Interest And Correlative Effects.
Decrease in unrecognized tax benefits is reasonably possible excluding interest and correlative effects.
Interest Costs Capitalized
Capitalized interest
2025
Royalty commitments future minimum payments due year three.
Royalty Commitments Future Minimum Payments Due Year Three
Proceeds from Sale of Property, Plant, and Equipment, Total
Proceeds from Sale of Property, Plant, and Equipment
Net cash proceeds from asset sales
Accounts Payable, Current, Total
Accounts Payable, Current
Accounts payable
Unrecognized tax benefits interest on income taxes expense and correlative effects
Unrecognized Tax Benefits Interest On Income Taxes Expense And Correlative Effects
Unrecognized tax benefits interest on income taxes expense and correlative effects.
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Internal Revenue Service (IRS) [Member]
Federal Tax Authority
Concentration Risk Type [Domain]
Concentration Risk Type
Weighted-average remaining lease term.
Weighted Average Remaining Lease Term [Abstract]
Weighted-average remaining lease terms (years):
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Distribution to owners of noncontrolling interest
Basic from discontinued operations attributable to common shareholders
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share, Total
Current assets held for sale
Disposal Group, Including Discontinued Operation, Assets, Current
Total current assets held for sale
Common Stock, Par or Stated Value Per Share
Common stock, par value
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Gain on sale of investment
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Gains on sales of investment land
Gains on divestitures and sales of assets
Variable Lease, Cost
Variable lease cost
Comprehensive Income, Policy [Policy Text Block]
Consolidated Comprehensive Earnings and Accumulated Other Comprehensive Loss
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of Awards, Awarded
Awards granted
Liability, Other Postretirement Defined Benefit Plan, Noncurrent
Noncurrent pension, postretirement and postemployment benefits
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Performance obligations, customer satisfaction period
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment, Net
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Long-Term Debt, Type [Domain]
Long-term Debt, Type
Expiration through date for domestic and foreign net operating loss carryforwards.
Domestic And Foreign Operating Loss Carry Forward Expiration Date
Operating loss carryforwards, expiration dates
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Expected return on assets