75000 - Document - Document and Entity Information
link:presentationLink
link:calculationLink
link:definitionLink
75010 - Statement - Condensed Consolidated Statements of Earnings
link:presentationLink
link:calculationLink
link:definitionLink
75020 - Statement - Condensed Consolidated Statements of Comprehensive Income
link:presentationLink
link:calculationLink
link:definitionLink
75030 - Statement - Condensed Consolidated Statements of Comprehensive Income (Parenthetical)
link:presentationLink
link:calculationLink
link:definitionLink
75040 - Statement - Condensed Consolidated Balance Sheets
link:presentationLink
link:calculationLink
link:definitionLink
75050 - Statement - Condensed Consolidated Statements of Cash Flows
link:presentationLink
link:calculationLink
link:definitionLink
995455 - Disclosure - Basis of Interim Presentation
link:presentationLink
link:calculationLink
link:definitionLink
995465 - Disclosure - Inventories
link:presentationLink
link:calculationLink
link:definitionLink
995475 - Disclosure - Property, Plant and Equipment
link:presentationLink
link:calculationLink
link:definitionLink
995485 - Disclosure - Goodwill and Other Intangible Assets
link:presentationLink
link:calculationLink
link:definitionLink
995495 - Disclosure - Current Liabilities
link:presentationLink
link:calculationLink
link:definitionLink
995505 - Disclosure - Fair Value Measurements
link:presentationLink
link:calculationLink
link:definitionLink
995515 - Disclosure - Contingencies
link:presentationLink
link:calculationLink
link:definitionLink
995525 - Disclosure - Stock-Based Compensation
link:presentationLink
link:calculationLink
link:definitionLink
995535 - Disclosure - Employee Benefit Plan
link:presentationLink
link:calculationLink
link:definitionLink
995545 - Disclosure - Interest Expense (Income)
link:presentationLink
link:calculationLink
link:definitionLink
995555 - Disclosure - Income Taxes
link:presentationLink
link:calculationLink
link:definitionLink
995565 - Disclosure - Stockholders' Equity
link:presentationLink
link:calculationLink
link:definitionLink
995575 - Disclosure - Accumulated Other Comprehensive Income (Loss)
link:presentationLink
link:calculationLink
link:definitionLink
995585 - Disclosure - Segments
link:presentationLink
link:calculationLink
link:definitionLink
995595 - Disclosure - Revenue
link:presentationLink
link:calculationLink
link:definitionLink
995605 - Disclosure - Earnings Per Share
link:presentationLink
link:calculationLink
link:definitionLink
995615 - Disclosure - Debt and Other Financing Arrangements
link:presentationLink
link:calculationLink
link:definitionLink
995625 - Disclosure - Subsequent Events
link:presentationLink
link:calculationLink
link:definitionLink
995635 - Disclosure - Acquisitions
link:presentationLink
link:calculationLink
link:definitionLink
995645 - Disclosure - Basis of Interim Presentation (Policies)
link:presentationLink
link:calculationLink
link:definitionLink
995655 - Disclosure - Goodwill and Other Intangible Assets (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995665 - Disclosure - Fair Value Measurements (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995675 - Disclosure - Stock-Based Compensation (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995685 - Disclosure - Interest Expense (Income) (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995695 - Disclosure - Stockholders' Equity (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995705 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995715 - Disclosure - Segments (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995725 - Disclosure - Revenue (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995735 - Disclosure - Earnings Per Share (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995745 - Disclosure - Acquisitions (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
995755 - Disclosure - Inventories - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995765 - Disclosure - Property, Plant and Equipment - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995775 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Change in Net Carrying Amount of Goodwill by Segment (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995785 - Disclosure - Goodwill and Other Intangible Assets - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995795 - Disclosure - Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995805 - Disclosure - Current Liabilities - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995815 - Disclosure - Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995825 - Disclosure - Fair Value Measurements - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995835 - Disclosure - Stock-Based Compensation - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995845 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Plans Activity (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995855 - Disclosure - Stock-Based Compensation - Schedule of Grant Date Fair Value Black-Scholes Options-Pricing Model Assumptions (Details)
link:presentationLink
link:calculationLink
link:definitionLink
995865 - Disclosure - Stock-Based Compensation - Summary of Nucor's Restricted Stock Unit ("RSU") Activity (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995875 - Disclosure - Stock-Based Compensation - Summary of Nucor's Restricted Stock Activity under AIP and LTIP (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995885 - Disclosure - Employee Benefit Plan - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995895 - Disclosure - Interest Expense (Income) - Schedule of Components of Net Interest Expense (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995905 - Disclosure - Income Taxes - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995915 - Disclosure - Stockholders' Equity - Schedule of Change in Stockholder's Equity (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995925 - Disclosure - Stockholders' Equity - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995935 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995945 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995945 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) [Default]
link:presentationLink
link:calculationLink
link:definitionLink
995955 - Disclosure - Segments - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995965 - Disclosure - Segments - Segments (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995975 - Disclosure - Segments - Schedule of Net Sale by Product to External Customers (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995985 - Disclosure - Revenue - Schedule of Net Sales Disaggregates by Major Source (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
995995 - Disclosure - Revenue - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
996005 - Disclosure - Earnings Per Share - Computations of Basic and Diluted Net Earnings Per Share (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
996015 - Disclosure - Earnings Per Share - Anti-dilutive Stock Options (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
996025 - Disclosure - Debt and Other Financing Arrangements - Additional Information (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
996035 - Disclosure - Acquisitions - Additional Information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
996045 - Disclosure - Acquisitions - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
996055 - Disclosure - Acquisitions - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail) 2
link:presentationLink
link:calculationLink
link:definitionLink
996065 - Disclosure - Acquisitions - Summary of Purchase Price Allocation to Identifiable Intangible Assets (Detail)
link:presentationLink
link:calculationLink
link:definitionLink
Shares reserved for future issuance
Common Stock, Capital Shares Reserved for Future Issuance
Debt and Other Financing Arrangements
Debt Disclosure [Text Block]
Interest Expense, Total
Interest expense
Interest Expense, Operating and Nonoperating
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Unrecognized compensation expense related to stock
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Stock Repurchase Program, Authorized Amount
Share Repurchase Program, Authorized, Amount
Beginning Balance, Foreign Currency Gains (Losses)
Ending Balance, Foreign Currency Gains (Losses)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Federal Home Loan Banks [Abstract]
Dividends, Cash, Total
Cash dividends declared
Dividends, Cash
Commitments and contingencies
Commitments and Contingencies
Weighted Average Number of Shares Outstanding, Diluted
Diluted average shares outstanding
Diluted
Minimum [Member]
Minimum [Member]
Capital contributions from noncontrolling interest
Capital contributions from noncontrolling interest.
Cash dividends
Payments of Ordinary Dividends, Common Stock
Fair Value, Measurements, Recurring [Member]
Fair Value, Recurring [Member]
Segment Reporting Information [Line Items]
Segment Reporting [Line Items]
Implied percentage to determine fair value of noncontrolling interest
Implied Percentage To Determine Fair Value Of Noncontrolling Interest
Implied percentage to determine fair value of noncontrolling interest.
Debt instrument face amount
Debt Instrument, Face Amount
Income Tax Expense (Benefit), Total
Provision for income taxes
Income Tax Expense (Benefit)
Translation
Goodwill, Foreign Currency Translation, Gain (Loss)
Counterparty Name
Counterparty Name [Domain]
Inactive plans.
Inactive Plans [Member]
Inactive Plans [Member]
Restricted Stock Units [Member]
Restricted Stock Units (RSUs) [Member]
Percentage of assets and liabilities
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Percentage
Business combination recognized identifiable assets acquired and liabilities assumed percentage.
Deferred Tax Liabilities, Net, Total
Non-current deferred tax liabilities included in deferred credits and other liabilities
Deferred Tax Liabilities, Net
Operating Segments [Member]
Operating Segments [Member]
Finite-Lived Intangible Assets, Major Class Name
Intangible Asset, Finite-Lived, Class [Domain]
Asset, Impairment Loss
Asset Impairment Charges, Total
Impairment of assets
Revolving credit facility, borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Treasury stock
Treasury Stock, Common, Value
Net assets acquired at 51%
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill, Less Noncontrolling Interest
Cost of Goods and Services Sold, Total
Cost of products sold
Cost of Product and Service Sold
Long-Term Debt and Lease Obligation, Total
Long-term debt and finance lease obligations due after one year
Long-Term Debt and Lease Obligation
Costs, expenses and other, total
Costs And Expenses Operating And Nonoperating
The sum of operating and non-operating costs and expenses.
Property, Plant, and Equipment [Text Block]
Property, Plant and Equipment
Other investing activities
Payment for (Proceeds from) Other Investing Activity
Plate [Member]
Plate [Member]
Plate.
Interest Income and Interest Expense Disclosure [Table Text Block]
Schedule of Components of Net Interest Expense
Debt Instrument [Table]
Schedule of Long-Term Debt Instruments [Table]
Net current-period other comprehensive income (loss), Gains and (Losses) on Hedging Derivatives
Other Comprehensive Income Loss Net Current Period Derivatives Qualifying As Hedges Net Of Tax
Other comprehensive income loss net current period derivatives qualifying as hedges net of tax.
Income Statement [Abstract]
Accumulated Other Comprehensive Income (Loss)
Comprehensive Income (Loss) Note [Text Block]
Canceled, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures, Total
Granted, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures
Schedule Of Finite Lived Intangible Assets [Table]
Intangible Asset, Finite-Lived [Table]
Earnings Per Share, Basic, Total
Basic net earnings per share
Basic
Earnings Per Share, Basic
Document Period End Date
Document Period End Date
Notes, 3.950%, due 2025 [Member]
Notes Three Point Nine Five Zero Due Two Thousand Twenty Five [Member]
Notes three point nine five zero due two thousand twenty five.
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year
Future amortization expense, in 2026
Bar [Member]
Bar [Member]
Bar.
Finite-Lived Intangible Assets, Net, Ending Balance
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net, Total
Finite-lived intangible assets
Other intangible assets, net
Intangible Asset, Finite-Lived, after Accumulated Amortization
Net proceeds of debt issuance and sale of notes after expenses and the underwriting discount
Proceeds from Debt, Net of Issuance Costs
Payments to Acquire Property, Plant, and Equipment, Total
Capital expenditures
Payments to Acquire Property, Plant, and Equipment
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Exercise price
Granted, Weighted - Average Exercise Price
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two
Future amortization expense, in 2028
Interest Revenue (Expense), Net, Total
Interest Income (Expense), Operating and Nonoperating
Interest expense, net
Interest expense, net
Equity in earnings of unconsolidated affiliates
Income (Loss) from Equity Method Investments
Federal income taxes
Increase (Decrease) in Income Taxes Payable
Net current-period other comprehensive income (loss)
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Debt instrument interest rate
Debt Instrument, Interest Rate, Stated Percentage
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Outstanding at July 4, 2026, Aggregate Intrinsic Value
Total assets
Total assets
Assets
Title of 12(b) Security
Title of 12(b) Security
Goodwill, Total
Goodwill
Balance, beginning of period
Balance, end of period
Goodwill
Earnings allocated to participating securities, Diluted
Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted
Acquisition of treasury stock
Payments for Repurchase of Common Stock
Unvested at beginning of year, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Unvested at July 4, 2026, Shares
Stock options exercised
Stock Issued During Period, Value, Stock Options Exercised
Stock options exercised
Summary of Nucor's Restricted Stock Unit ("RSU") Activity
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Effective Income Tax Rate Reconciliation, Percent, Total
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Goodwill [Line Items]
Goodwill [Line Items]
Joist and Deck [Member]
Joist and deck.
Joist & Deck [Member]
Proceeds from Issuance of Long-Term Debt
Proceeds from Issuance of Long-Term Debt, Total
Proceeds from issuance of long-term debt, net of discount
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Total
Current liabilities
Business Combination, Recognized Liability Assumed, Liability, Current
Notes, 3.125%, due 2032 [Member]
Notes Three Point One Two Five Percent Due Two Thousand Thirty Two [Member]
Notes three point one two five percent due two thousand thirty two.
Treasury Stock, Value, Acquired, Cost Method
Treasury stock acquired, and net impact of excise tax
Proceeds from Divestiture of Businesses and Interests in Affiliates
Proceeds from Divestiture of Businesses and Interests in Affiliates, Total
Divestiture of affiliate
Outstanding, Weighted - Average Remaining Contractual Life
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term
Other current assets
Business Combination, Recognized Asset Acquired, Other Asset, Current
Customer Relationships [Member]
Customer Relationships [Member]
Schedule of Net Sales Disaggregates by Major Source
Disaggregation of Revenue [Table Text Block]
Segments
Segment Reporting [Table Text Block]
Notes, 3.950%, due 2025 [Member]
Notes Three Point Nine Five Zero Percent Due Two Thousand Twenty Five [Member]
Notes three point nine five zero percent due two thousand twenty five.
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four
Future amortization expense, in 2030
Equity, Attributable to Parent, Ending Balance
Equity, Attributable to Parent, Beginning Balance
Total Nucor stockholders' equity
Equity, Attributable to Parent
Treasury Stock (at cost) [Member]
Treasury Stock, Common [Member]
Other assets
Other Assets, Noncurrent
Income Taxes
Income Tax Disclosure [Text Block]
Weighted-average exercise price
Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price
Antidilutive Securities Excluded From Computation Of Earnings Per Share Weighted Average Exercise Price
Raw Materials [Member]
Raw Material [Member]
Raw materials.
Earnings Per Share [Text Block]
Earnings Per Share
Number of Reportable Segments
Number of reportable segments
Joist [Member]
Joist [Member]
Joist.
Deferred income taxes
Business Combination, Recognized Liability Assumed, Deferred Tax Liability
Credit Facility [Axis]
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Corporate [Member]
Stock, Class of Stock [Table]
Repayments of Long-Term Debt
Repayments of Long-Term Debt, Total
Repayment of long-term debt
Redemption amount
Notes, 4.000%, due 2023 [Member]
Notes Four Point Zero Zero Zero Percent Due Two Thousand Twenty Three [Member]
Notes four point zero zero zero percent due two thousand twenty three.
Revolving Credit Facility [Member]
Vested, Grant Date Fair Value Per Share
Vested, Grant Date Fair Value Per Share
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Proceeds from exercise of stock options
Proceeds from Stock Options Exercised
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three
Future amortization expense, in 2029
Statistical Measurement
Statistical Measurement [Axis]
Entity Interactive Data Current
Entity Interactive Data Current
Schedule Of Goodwill [Table]
Goodwill [Table]
Building Systems.
Building Systems [Member]
Debt Instrument Fair Value Carrying Value [Abstract]
Debt Instrument Fair Value Carrying Value [Abstract]
Common stock
Common Stock, Value, Issued
Computations of Basic and Diluted Net Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Proceeds from Sale of Property, Plant, and Equipment, Total
Disposition of plant and equipment
Proceeds from Sale of Property, Plant, and Equipment
Total liabilities
Liabilities
Ownership
Ownership [Domain]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total
Property, plant and equipment
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment
Acquisitions
Business Combination [Text Block]
Schedule of Financial Assets and Liabilities Measured at Fair Value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Product and Service
Product and Service [Axis]
Charges related to impairments, losses or cumulative foreign currency translation losses reclassified into earnings related to certain assets.
Losses And Impairments Of Assets
Losses and impairments of assets (Notes 7, 8, 9, 14, 19, 20 and 27)
Losses and impairments of assets
Retained Earnings (Accumulated Deficit), Total
Retained earnings
Retained Earnings (Accumulated Deficit)
Distributions from affiliates
Distributions From Affiliates
The operating cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership.
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Inputs, Level 3 [Member]
Level 3 [Member]
Increase (Decrease) in Accounts Payable, Total
Accounts payable
Increase (Decrease) in Accounts Payable
Dividends declared per share
Common Stock, Dividends, Per Share, Declared
Rule 10b51 Arr Modified Flag
Rule 10b51 Arr Modified Flag.
Rule 10b5-1 Arrangement Modified
Amortization, Total
Amortization
Amortization
Amortization expense
Fair Value By Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Notes Two Point Zero Zero Zero Due Two Thousand Twenty Five [Member]
Notes two point zero zero zero due two thousand twenty five.
Notes, 2.000%, due 2025 [Member]
Goodwill recognized for tax purposes
Business Combination, Goodwill, Expected Tax Deductible, Amount
Basis of Interim Presentation
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Interest Income (Expense), Operating and Nonoperating [Abstract]
Interest Revenue Or Expense Net [Abstract]
Steel Products [Member]
Steel Products [Member]
Steel products.
Changes in assets and liabilities (exclusive of acquisitions and dispositions):
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Banking and Thrift, Interest [Abstract]
Structural [Member]
Structural [Member]
Structural.
Finite And Indefinite Lived Intangible Assets [Table]
Finite And Indefinite Lived Intangible Assets [Table]
Finite And Indefinite Lived Intangible Assets [Table]
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total
Comprehensive income attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Reclassification adjustment for settlement of hedging derivatives included in net earnings, net of income taxes of $7 and $1 for the second quarter of 2026 and 2025, respectively, and $11 and $2 for the first six months of 2026 and 2025, respectively
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Losses on Hedging Derivatives
Intangible assets, Accumulated Amortization
Intangible Asset, Finite-Lived, Accumulated Amortization
Change in accrued plant and equipment purchases
Change In Accrued Plant And Equipment Purchases
Change in accrued plant and equipment purchases.
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Accumulated depreciation
Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization
Derivative Liability, Total
Derivative contracts, liabilities
Derivative Liability
Subsequent Events [Text Block]
Subsequent Events
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total
Effect of exchange rate changes on cash
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
C.H.I. Overhead Doors
C H I Overhead Doors [Member]
C.H.I. Overhead Doors.
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Axis]
Expected stock price volatility
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total
Dilutive effect of stock options and other
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Property, Plant, and Equipment [Line Items]
Weighted-Average Life
Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period
Risk-free interest rate
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Inventory
Business Combination, Recognized Asset Acquired, Inventory, Current
Sheet [Member]
Sheet [Member]
Sheet.
Unvested at beginning of year, Grant Date Fair Value Per Share
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Unvested at July 4, 2026, Grant Date Fair Value Per Share
Total liabilities assumed
Business Combination, Recognized Liability Assumed, Liability
Total liabilities and equity
Liabilities and Equity
Expected dividend yield
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table Text Block]
Schedule of Net Sale by Product to External Customers
Finite-Lived Intangible Assets by Major Class
Intangible Asset, Finite-Lived, Class [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
Short-Term Debt, Total
Short-term debt
Short-Term Debt
Schedule of Grant Date Fair Value Black-Scholes Options-Pricing Model Assumptions
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Proceeds from government incentives.
Proceeds From Government Incentives
Proceeds from government incentives
Property, Plant, and Equipment [Table]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Segment Earnings Before Income Taxes And Noncontrolling Interests
Segment earnings before income taxes and noncontrolling interests.
Segment earnings before income taxes and noncontrolling interests
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease), Total
Non-cash increase in investment
Costs, expenses and other:
Costs and Expenses [Abstract]
Payments to Acquire Businesses, Net of Cash Acquired, Total
Acquisitions (net of cash acquired)
Acquisitions net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Notes, 4.650%, due 2030 [Member]
Notes Four Point Six Five Zero Percent Due Two Thousand Thirty [Member]
Notes four point six five zero percent due two thousand thirty.
Intangible assets, useful life
Intangible Asset, Finite-Lived, Useful Life
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Increase (decrease) in cash and cash equivalents
Entity Current Reporting Status
Entity Current Reporting Status
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite And Indefinite Lived Intangible Assets [Line Items]
Finite And Indefinite Lived Intangible Assets [Line Items]
NonRule 10b51 Arr Modified Flag
NonRule 10b51 Arr Modified Flag.
Non-Rule 10b5-1 Arrangement Modified
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Stock options exercisable at July 4, 2026, Shares
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Inputs, Level 1 [Member]
Beginning Balance, Gains and (Losses) on Hedging Derivatives
Ending Balance, Gains and (Losses) on Hedging Derivatives
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedging Derivatives Effect Net Of Tax
Accumulated other comprehensive income loss cumulative changes in net gain loss from cash flow hedging derivatives effect net of tax.
Accounts Payable, Current, Total
Accounts payable
Accounts Payable, Current
Restricted cash and cash equivalents
Restricted Cash Equivalent, Current
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Anti-dilutive Stock Options
Assets, Fair Value Disclosure, Total
Total assets
Assets, Fair Value Disclosure
Document Transition Report
Document Transition Report
Commitments and Contingencies Disclosure [Abstract]
Increase (Decrease) in Inventories, Total
Inventories
Increase (Decrease) in Inventories
Book overdrafts
Book Overdrafts
The carrying value of outstanding disbursements (checks) written and issued by the entity but have not been presented to the financial institution.
Current liabilities:
Liabilities, Current [Abstract]
Share-Based Payment Arrangement [Abstract]
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
EQUITY
Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Nucor-JFE Steel Mexico, S. de R.L. de C.V. [Member]
Nucor-JFE Steel Mexico, S. de R.L. de C.V. [Member]
Nucor-JFE Steel Mexico, S. de R.L. de C.V. [Member]
NJSM [Member]
Common Stock [Member]
Common Stock [Member]
Total assets acquired
Business Combination, Recognized Asset Acquired, Asset
Credit Facility [Domain]
Statistical Measurement
Statistical Measurement [Domain]
Distributions to noncontrolling interests
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Miscellaneous
Stockholders EquityI Miscellaneous
Stockholders equityI miscellaneous.
Finite-Lived Intangible Assets, Gross, Total
Intangible assets, Gross Amount
Intangible Asset, Finite-Lived, before Accumulated Amortization
Nucor stockholders' equity:
Equity, Attributable to Parent [Abstract]
Weighted Average Number of Shares Outstanding, Basic, Total
Basic average shares outstanding
Basic
Weighted Average Number of Shares Outstanding, Basic
Property, Plant, and Equipment [Abstract]
ASSETS
Assets [Abstract]
Entity Central Index Key
Entity Central Index Key
Average shares outstanding:
Weighted Average Number of Shares Outstanding, Basic [Abstract]
Stock options exercisable, Aggregate Intrinsic Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Proceeds from the sale of investments
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale
Consolidation Items
Consolidation Items [Axis]
Current Fiscal Year End Date
Current Fiscal Year End Date
Document Quarterly Report
Document Quarterly Report
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five
Future amortization expense, in 2031
Debt Instrument, Maturity Date
Maturity date
Net earnings available to common stockholders, Diluted
Net Income (Loss) Available to Common Stockholders, Diluted
Business acquisition, purchase price
Payments to Acquire Businesses, Gross
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Inputs, Level 2 [Member]
Cash
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent
Outstanding at beginning of year, Weighted - Average Exercise Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Outstanding at July 4, 2026, Weighted - Average Exercise Price
Business Combination [Abstract]
Business combination noncontrolling interest fair value percentage not acquired by Nucor
Business Combination Acquisition Of Noncontrolling Interest Fair Value Percentage
Business combination acquisition of noncontrolling interest fair value percentage.
Cash provided by operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Earnings Per Share, Diluted, Total
Diluted net earnings per share
Diluted
Earnings Per Share, Diluted
Diluted net earnings
Net earnings attributable to Nucor stockholders
Stock options exercised
Adjustment To Stockholders Equity For Stock Option Exercise Activity
Amount of adjustment of stockholders' equity related to stock option exercise activity.
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture, Total
Issuance of stock under award plans, net of forfeitures
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Ownership
Ownership [Axis]
Contingencies
Commitments and Contingencies Disclosure [Text Block]
Comprehensive income attributable to Nucor stockholders
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Measurement Frequency
Measurement Frequency [Domain]
Net current-period other comprehensive income (loss), Foreign Currency Gains (Losses)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Amounts reclassified from accumulated other comprehensive income (loss) into earnings
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Equity Components
Equity Components [Axis]
Investing activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Statement of Cash Flows [Abstract]
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Domain]
Income Tax Disclosure [Abstract]
Exercised, Weighted - Average Exercise Price
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Grant date fair value of stock options granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Retirement Benefits [Abstract]
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax, Total
Beginning Balance, Adjustment to Early Retiree Medical Plan
Ending Balance, Adjustment to Early Retiree Medical Plan
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Fair Value Measurements
Fair Value Disclosures [Text Block]
Restricted Cash and Cash Equivalents, Total
Restricted cash and cash equivalents
Restricted Cash and Cash Equivalent
Distributions to noncontrolling interests
Payments of Ordinary Dividends, Noncontrolling Interest
Corporate and Eliminations Items [Member]
Consolidation, Eliminations [Member]
Weighted-average shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Counterparty Name
Counterparty Name [Axis]
Accumulated Other Comprehensive Income (Loss) [Member]
AOCI Attributable to Parent [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Stock based compensation, common stock available for grant
Total Nucor Stockholders' Equity [Member]
Parent [Member]
Inventory, Net, Total
Inventories, net
Inventory, Net
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other comprehensive income (loss):
Summary of Fair Values of Assets Acquired and Liabilities Assumed
Business Combination [Table Text Block]
Canceled, Weighted - Average Exercise Price
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Accrued Liabilities, Current, Total
Accrued expenses and other current liabilities
Accrued Liabilities, Current
Deck [Member]
Deck.
Deck [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding at beginning of year, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Outstanding at July 4, 2026, Shares
Schedule Of Changes In Stock Holders Equity
Schedule Of Changes In Stock Holders Equity Table [Text Block]
Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented.
Intangible Asset, Goodwill and Other [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Document Type
Document Type
Accrued Vacation And Holiday Pay
Carrying value as of the balance sheet date of obligations incurred and payable for unused vacation time and holiday pay owed to employees based on the entity's vacation and holiday benefit given to its employees.
Accrued vacation and holiday pay
Operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
LIABILITIES
Liabilities and Equity [Abstract]
Stock Options [Member]
CSI [Member]
California Steel Industries Inc [Member]
California steel industries Inc.
California Steel Industries Inc [Member]
Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total
Other operating activities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax, Total
Other comprehensive income (loss) before reclassifications, Adjustment to Early Retiree Medical Plan
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax
Other Steel Products [Member]
Other Steel Products [Member]
Other steel products.
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total
Other intangible assets
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill
Components of Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule Of Segment Reporting Information By Segment [Table]
Segment Reporting [Table]
Less: Fair value of noncontrolling interest
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value
Entity File Number
Securities Act File Number
Revenue
Revenue from Contract with Customer [Text Block]
Location, Statement of Income, Balance [Axis]
Trademarks and Trade Names [Member]
Trademarks and Trade Names [Member]
Retained Earnings [Member]
Retained Earnings [Member]
Other financing activities
Proceeds from (Payment for) Other Financing Activity
Entity Registrant Name
Entity Registrant Name
BALANCES, shares at beginning of period
BALANCES, shares at end of period
Shares, Issued
Other assets
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent
Accounting Policies [Abstract]
Depreciation, Total
Depreciation
Depreciation
Depreciation expense
Net earnings before noncontrolling interests
Net earnings before noncontrolling interests
Net earnings
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Selling, General and Administrative Expense, Total
Marketing, administrative and other expenses
Selling, General and Administrative Expense
Finished and semi-finished products in inventory, percentage
Finished And Semi Finished Products In Inventory Percentage
Finished and semi-finished products in inventory, percentage.
Intercompany Eliminations [Member]
Intersegment Eliminations [Member]
Entity Address, Address Line One
Entity Address, Address Line One
Current Liabilities
Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]
Net Income (Loss) Attributable to Noncontrolling Interest, Total
Earnings attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Increase (Decrease) in Employee Related Liabilities, Total
Salaries, wages and related accruals
Increase (Decrease) in Employee Related Liabilities
Exercised, Shares
Stock options exercised (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Accounts receivable
Business Combination, Recognized Asset Acquired, Receivable, Current
JFE Steel Corporation [Member]
J F E Steel Corporation [Member]
JFE Steel Corporation.
Proceeds from (Repayments of) Short-Term Debt, Total
Net change in short-term debt
Proceeds from (Repayments of) Short-Term Debt
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Stock options exercisable at July 4, 2026, Weighted - Average Exercise Price
Total current assets
Assets, Current
Segments
Segments [Axis]
Payments to Acquire Interest in Subsidiaries and Affiliates, Total
Investment in and advances to affiliates
Payments to Acquire Interest in Subsidiaries and Affiliates
Deferred Income Tax Expense (Benefit), Total
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Entity Small Business
Entity Small Business
Notes, 4.300%, due 2027 [Member]
Notes Four Point Three Zero Zero Percent Due Two Thousand Twenty Seven [Member]
Notes four point three zero zero percent due two thousand twenty seven.
Canceled, Grant Date Fair Value Per Share
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Long-Term Debt and Lease Obligation, Current, Total
Current portion of long-term debt and finance lease obligations
Long-Term Debt and Lease Obligation, Current
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Accounts receivable, net
Accounts Receivable, after Allowance for Credit Loss, Current
Consolidation Items
Consolidation Items [Domain]
Other assets
Other Assets, Total
Other Assets
Employee-related Liabilities, Current, Total
Salaries, wages and related accruals
Employee-related Liabilities, Current
Treasury Stock, Shares, Acquired
Treasury stock acquired, and net impact of excise tax (in shares)
Payment of Financing and Stock Issuance Costs
Payment of Financing and Stock Issuance Costs, Total
Bond issuance costs
Net earnings per share:
Earnings Per Share [Abstract]
Derivative Asset, Total
Derivative contracts, assets
Derivative Asset
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Summary of Stock Option Plans Activity
Vale S.A [Member]
Vale S A [Member]
Vale S.A.
Plan Name
Plan Name [Axis]
Equity [Abstract]
Product and Service
Product and Service [Domain]
Stockholders' Equity
Equity [Text Block]
Measurement Frequency
Measurement Frequency [Axis]
Financing activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Omnibus Plan [Member]
Omnibus Plan [Member]
Omnibus Plan [Member]
Entity Tax Identification Number
Entity Tax Identification Number
Statement Of Comprehensive Income [Abstract]
Statement Of Comprehensive Income [Abstract]
Treasury Stock, Common, Shares
Treasury Stock (at cost), Shares
Treasury Stock (at cost), Shares
Impairment of goodwill
Goodwill, Impairment Loss
Equity Component
Equity Component [Domain]
Amounts reclassified from accumulated other comprehensive (loss) income into earnings, Adjustment to Early Retiree Medical Plan
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Amortization of unearned compensation
Amortization Unearned Compensation
Amortization of unearned compensation related to incentive compensation plans.
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Entity Address, City or Town
Entity Address, City or Town
Fair value of short-term and long-term debt, including current maturities
Short And Long Term Debt Fair Value
The fair value amount of short-term and long-term debt, including current maturities, whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.
Business Acquisition
Business Combination [Axis]
Finite-Lived Intangible Assets [Line Items]
Intangible Asset, Finite-Lived [Line Items]
Segments
Segments [Domain]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Goodwill and Other Intangible Assets
Intangible Asset and Goodwill [Text Block]
Long-term debt due after one year
Business Combination, Recognized Liability Assumed, Long-Term Debt, Noncurrent
Profit Sharing and Retirement Savings Plan, plan expense
Profit Sharing And Retirement Savings Plan Expense
Costs and payments related to employee profit sharing and retirement savings plans.
Measurement Basis
Measurement Basis [Axis]
Contract liabilities
Contract with Customer, Liability, Current
Statement [Table]
Statement [Table]
Compensation expense
Share-Based Payment Arrangement, Expense
Earnings before income taxes and noncontrolling interests
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Earnings before income taxes and noncontrolling interests
Entity Shell Company
Entity Shell Company
Expected life (in years)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Cash used in investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Statement [Line Items]
Statement [Line Items]
Vested, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Maximum [Member]
Maximum [Member]
Debt Disclosure [Abstract]
Interest income
Investment Income, Interest
Business Acquisition, Acquiree
Business Combination [Domain]
Acquired controlling ownership percentage
Business Combination, Voting Equity Interest Acquired, Percentage
Dividends payable, current
Dividends Payable, Current
AIP and LTIP [Member]
Aip And Ltip [Member]
AIP and LTIP.
Subsequent Events [Abstract]
Stock option expense
APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition
Revenue from Contract with Customers [Line Items]
Revenue From Contract With Customers [Line Items]
Revenue from contract with customers line items.
Payment of tax withholdings on certain stock-based compensation
Payment, Tax Withholding, Share-Based Payment Arrangement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Granted, Grant Date Fair Value Per Share
Granted, Grant Date Fair Value Per Share
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect
Reclassification adjustment for settlement of hedging derivatives included in net income, tax effect
Other Comprehensive Income Loss Reclassification Adjustment Gain Loss On Settlements From A O C I On Derivatives Tax
Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect
Other current liabilities
Business Combination, Recognized Liability Assumed, Other Liability, Current
Earnings allocated to participating securities, Basic
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic
Current assets:
Assets, Current [Abstract]
Debt Issuance Costs, Net, Total
Debt issuance and sale costs of Notes
Debt Issuance Costs, Net
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total
Net current-period other comprehensive income (loss), Adjustment to Early Retiree Medical Plan
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Other [Member]
Other Intangible Assets [Member]
Document Fiscal Year Focus
Document Fiscal Year Focus
Restricted Stock Units and Restricted Stock Awards [Member]
Restricted Stock Awards and Units [Member]
Restricted Stock And Restricted Stock Units [Member]
Restricted Stock And Restricted Stock Units [Member]
Total equity
BALANCES, beginning of period
BALANCES, end of period
Equity, Including Portion Attributable to Noncontrolling Interest
Nucor-Yamato Steel Company and California Steel Industries [Member]
Nucor Yamato Steel Company And California Steel Industries [Member]
Nucor Yamato Steel Company and California Steel Industries.
Current portion of long-term debt
Business Combination, Recognized Liability Assumed, Long-Term Debt, Current
Business Acquisition [Line Items]
Business Combination [Line Items]
Revenue From Contract With Customers [Table]
Revenue From Contract With Customers [Table]
Revenue from contract with customers.
Notes, 4.125%, due 2022 [Member]
Notes Four Point One Two Five Due Two Thousand Twenty Two [Member]
Notes Four Point One Two Five Due Two Thousand Twenty Two [Member]
Other liabilities
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent
Schedule of Intangible Assets
Intangible Asset, Finite-Lived [Table Text Block]
Compensation expenses for stock options
Stock or Unit Option Plan Expense
Noncontrolling interest, ownership percentage by parent
Subsidiary, Ownership Percentage, Parent
Additional paid-in capital
Additional Paid in Capital, Common Stock
Security Exchange Name
Security Exchange Name
Revenues, Total
Revenues
Revenues
New Accounting Pronouncements, Policy [Policy Text Block]
Recently Issued Accounting Pronouncements
Entity Address, State or Province
Entity Address, State or Province
Summary of Purchase Price Allocation to Identifiable Intangible Assets
Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block]
Other Acquisitions [Member]
Other Acquisitions [Member]
Other Acquisitions [Member]
Weighted-average recognition period for unrecognized compensation expense related to stock (years)
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Stock based compensation, common stock available for grant
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Amendment Flag
Amendment Flag
Schedule of Change in Net Carrying Amount of Goodwill by Segment
Goodwill [Table Text Block]
Stock-Based Compensation
Share-Based Payment Arrangement [Text Block]
Raw Materials [Member]
Raw materials segment [Member]
Raw materials segment.
Debt Instrument
Debt Instrument [Axis]
Net assets acquired
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill
Steel Mills [Member]
Steel Mills [Member]
Steel mills.
Employee Benefit Plan [Abstract]
Employee Benefit Plan [Abstract]
City Area Code
City Area Code
Reported Value Measurement [Member]
Reported Value Measurement [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Tubular Products [Member]
Tubular Products [Member]
Tubular products.
Inventories
Inventory Disclosure [Text Block]
Other comprehensive income (loss) before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Employee Benefit Plan
Retirement Benefits [Text Block]
Stock options exercisable, Weighted - Average Remaining Contractual Life
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term
Intangible Liability Disclosure [Abstract]
Intangible Liability Disclosure [Abstract]
OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax
Foreign currency translation gain (loss) tax
Total current liabilities
Liabilities, Current
Debt instrument - maturity year
Debt Instrument Maturity Year
Debt instrument maturity year.
Deferred Tax Assets, Net of Valuation Allowance
Deferred Tax Assets, Net of Valuation Allowance, Total
Non-current deferred tax assets included in other assets
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Cash and cash equivalents - beginning of year
Cash and cash equivalents - end of six months
Notes Five Point One Zero Zero Percent Due Two Thousand Thirty Five [Member]
Notes five point one zero zero percent due two thousand thirty five.
Notes, 5.100%, due 2035 [Member]
Segments
Segment Reporting [Text Block]
Trading Symbol
Trading Symbol
Disclosure - Debt and Other Financing Arrangements - Additional Information (Detail) [Abstract]
Disclosure Debt And Other Financing Arrangements Additional Information Detail [Abstract]
Granted, Shares
Granted, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Entity Emerging Growth Company
Entity Emerging Growth Company
Other comprehensive income (loss) before reclassifications, Foreign Currency Gains (Losses)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax
Foreign currency translation gain (loss), net of income taxes of $0 for the second quarter and first six months of 2026 and 2025
Additional Paid-in Capital [Member]
Additional Paid-in Capital [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture, Total
Issuance of stock under award plans, net of forfeitures, shares
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Fair Value Measurement
Fair Value Measurement [Domain]
Plan Name
Plan Name [Domain]
Acquisition of noncontrolling interest in CSI
Noncontrolling Interest Increase Decrease From Business Combination
Noncontrolling interest increase decrease from business combination.
Interest Income and Interest Expense Disclosure [Text Block]
Interest Expense (Income)
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Foreign Currency Gains (Losses)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax
Portion at Fair Value Measurement [Member] [Default]
Portion at Fair Value Measurement [Member]
Schedule Of Business Acquisitions By Acquisition [Table]
Business Combination [Table]
Exercised, Aggregate Intrinsic Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Non-cash investing activity:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Cover [Abstract]
Segment Reporting, Other Segment Item, Amount
Other segment items
Equity, Attributable to Noncontrolling Interest, Ending Balance
Equity, Attributable to Noncontrolling Interest, Beginning Balance
Equity, Attributable to Noncontrolling Interest, Total
Noncontrolling interests
Equity, Attributable to Noncontrolling Interest
Identifiable intangible assets
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived
Summary of Nucor's Restricted Stock Activity under AIP and LTIP
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Revenue from Contract with Customer [Abstract]
Payments to Acquire Investments, Total
Purchases of investments
Payments to Acquire Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated other comprehensive loss, net of income taxes
Beginning Balance
Ending Balance
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total sales
Total Segment Sales Intercompany And External
Total segment sales, which includes both intercompany sales and sales to external customers.
Intangible asset amortization expense
Intangible Asset, Finite-Lived, Amortization Expense
Capital expenditure by segment, which includes cash and non-cash expenditures.
Payments To Acquire Property Plant And Equipment Including Non Cash Adjustments For Capital Expenditures
Capital expenditures
Share-Based Payment Arrangement, Noncash Expense, Total
Stock-based compensation
Share-Based Payment Arrangement, Noncash Expense
Adjustments:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Short-Term Investments, Total
Short-term investments
Short-Term Investments
Fair Value Disclosures [Abstract]
Cash and Cash Equivalents, at Carrying Value, Total
Cash and cash equivalents
Cash and Cash Equivalent
Share repurchase program, available repurchase amount
Share Repurchase Program, Remaining Authorized, Amount
Notes, 3.850%, due 2052 [Member]
Notes Three Point Eight Five Zero Percent Due Two Thousand Fifty Two [Member]
Notes three point eight five zero percent due two thousand fifty two.
Noncontrolling Interests [Member]
Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income Loss [Table]
Cash used in financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Payables And Accruals [Abstract]
Net earnings available to common stockholders, Basic
Net Income (Loss) Available to Common Stockholders, Basic
Cash Equivalents, at Carrying Value, Total
Cash equivalents
Cash Equivalents, at Carrying Value
Percentage of additional Interest acquired.
Percentage of additional Interest acquired
Deferred credits and other liabilities
Deferred Tax and Other Liabilities, Noncurrent
Canceled, Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
Entity Filer Category
Entity Filer Category
Rebar Fabrication [Member]
Rebar Fabrication [Member]
Rebar Fabrication [Member]
Debt Instrument, Name
Debt Instrument, Name [Domain]
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Raw materials and supplies in inventory, percentage
Raw Material And Supplies In Inventory Percentage
Raw material and supplies in inventory, percentage.
Accounts receivable
Increase (Decrease) in Accounts Receivable
Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One
Future amortization expense, in 2027
Property, Plant and Equipment, Net, Total
Property, plant and equipment, net
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization
Other Comprehensive Income Net Unrealized Gain Loss On Derivatives Arising During Period Tax
Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).
Net unrealized loss on hedging derivatives, tax
Net sales
Revenue From Contract With Customer Excluding Assessed Tax
Revenue from Contract with Customer, Excluding Assessed Tax
Other comprehensive income (loss) before reclassifications, Gains and (Losses) on Hedging Derivatives
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Net unrealized loss on hedging derivatives, net of income taxes of $(2) and $(5) for the second quarter of 2026 and 2025, respectively, and $(8) and $(2) for the first six months of 2026 and 2025, respectively
Inventory Disclosure [Abstract]
Nucor-Yamato Steel Company.
Nucor Yamato Steel Company [Member]
Nucor Yamato Steel Company [Member]
Segment Reporting [Abstract]
Other current assets
Other Assets, Current
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Statement of Financial Position [Abstract]
Local Phone Number
Local Phone Number