Nucor (NUE) 10-Q 8 May 24 2024 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Mar. 30, 2024 shares
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 30, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Trading Symbol	NUE
Entity Registrant Name	NUCOR CORPORATION
Entity Central Index Key	0000073309
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, par value $0.40 per share
Security Exchange Name	NYSE
Entity Incorporation, State or Country Code	DE
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	1-4119
Entity Tax Identification Number	13-1860817
Entity Address, Address Line One	1915 Rexford Road
Entity Address, City or Town	Charlotte
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	28211
City Area Code	704
Local Phone Number	366-7000
Entity Common Stock, Shares Outstanding	239,761,770

Condensed Consolidated Statemen

Condensed Consolidated Statements of Earnings - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Income Statement [Abstract]
Net sales	$ 8,137,083	$ 8,709,980
Costs, expenses and other:
Cost of products sold	6,613,903	6,711,778
Marketing, administrative and other expenses	345,395	389,895
Equity in (earnings) losses of unconsolidated affiliates	(9,769)	1,340
Interest (income) expense, net	(37,787)	10,183
Costs, expenses and other, total	6,911,742	7,113,196
Earnings before income taxes and noncontrolling interests	1,225,341	1,596,784
Provision for income taxes	266,379	365,155
Net earnings before noncontrolling interests	958,962	1,231,629
Earnings attributable to noncontrolling interests	114,121	95,087
Net earnings attributable to Nucor stockholders	$ 844,841	$ 1,136,542
Net earnings per share:
Basic	$ 3.46	$ 4.47
Diluted	$ 3.46	$ 4.45
Average shares outstanding:
Basic	243,098	253,608
Diluted	243,497	254,397

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 30, 2024	Apr. 01, 2023
Statement Of Comprehensive Income [Abstract]
Net earnings before noncontrolling interests		$ 958,962	$ 1,231,629
Other comprehensive loss:
Net unrealized loss on hedging derivatives, net of income taxes of $(1,700) and $(7,800) for the first quarter of 2024 and 2023, respectively		(5,241)	(24,575)
Reclassification adjustment for settlement of hedging derivatives included in net earnings, net of income taxes of $1,800 and $100 for the first quarter of 2024 and 2023, respectively	[1]	5,341	175
Foreign currency translation gain (loss), net of income taxes of $0 for the first quarter of 2024 and 2023		(15,468)	(3,441)
Net current-period other comprehensive income (loss)		(15,368)	(27,841)
Comprehensive income		943,594	1,203,788
Comprehensive income attributable to noncontrolling interests		114,121	95,087
Comprehensive income attributable to Nucor stockholders		$ 829,473	$ 1,108,701
[1] Includes $ 5,341 and $ 175 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts in the first quarter of 2024 and 2023 , respectively. The tax impact of those reclassifications was $ 1,800 and $ 100 in the first quarter of 2024 and 2023 , respectively.

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Statement Of Comprehensive Income [Abstract]
Net unrealized (loss) gain on hedging derivatives, tax	$ (1,700)	$ (7,800)
Reclassification adjustment for settlement of hedging derivatives included in net income, tax effect	1,800	100
Foreign currency translation (loss) gain, tax	$ 0	$ 0

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 4,557,759	$ 6,383,298
Short-term investments	981,179	747,479
Accounts receivable, net	3,157,184	2,953,311
Inventories, net	5,589,675	5,577,758
Other current assets	356,882	724,012
Total current assets	14,642,679	16,385,858
Property, plant and equipment, net	11,456,683	11,049,767
Restricted cash and cash equivalents	46	3,494
Goodwill	3,956,062	3,968,847
Other intangible assets, net	3,049,070	3,108,015
Other assets	827,985	824,518
Total assets	33,932,525	35,340,499
Current liabilities:
Short-term debt	130,002	119,211
Current portion of long-term debt and finance lease obligations	73,890	74,102
Accounts payable	1,616,366	2,020,289
Salaries, wages and related accruals	686,186	1,326,390
Accrued expenses and other current liabilities	1,139,532	1,054,517
Total current liabilities	3,645,976	4,594,509
Long-term debt and finance lease obligations due after one year	6,647,560	6,648,873
Deferred credits and other liabilities	1,913,470	1,973,363
Total liabilities	12,207,006	13,216,745
Commitments and contingencies
Nucor stockholders' equity:
Common stock	152,061	152,061
Additional paid-in capital	2,210,823	2,176,243
Retained earnings	29,476,087	28,762,045
Accumulated other comprehensive loss, net of income taxes	(177,440)	(162,072)
Treasury stock	(10,967,818)	(9,987,643)
Total Nucor stockholders' equity	20,693,713	20,940,634
Noncontrolling interests	1,031,806	1,183,120
Total equity	21,725,519	22,123,754
Total liabilities and equity	$ 33,932,525	$ 35,340,499

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Operating activities:
Net earnings before noncontrolling interests	$ 958,962	$ 1,231,629
Adjustments:
Depreciation	256,938	221,089
Amortization	58,683	58,769
Stock-based compensation	21,341	20,401
Deferred income taxes	(39,627)	(28,193)
Distributions from affiliates	7,241	17,394
Equity in (earnings) losses of unconsolidated affiliates	(9,769)	1,340
Changes in assets and liabilities (exclusive of acquisitions and dispositions):
Accounts receivable	(207,682)	(67,505)
Inventories	(13,980)	(138,694)
Accounts payable	(392,403)	394,602
Federal income taxes	247,783	330,781
Salaries, wages and related accruals	(595,861)	(858,925)
Other operating activities	168,027	24,485
Cash provided by operating activities	459,653	1,207,173
Investing activities:
Capital expenditures	(670,340)	(531,733)
Investment in and advances to affiliates	(79)
Disposition of plant and equipment	4,439	2,276
Acquisitions (net of cash acquired)	991
Purchases of investments	(646,570)	(468,412)
Proceeds from the sale of investments	421,831	228,086
Cash used in investing activities	(889,728)	(769,783)
Financing activities:
Net change in short-term debt	10,791	(19,765)
Repayment of long-term debt	(2,500)	(2,500)
Proceeds from exercise of stock options	3,165	7,123
Payment of tax withholdings on certain stock-based compensation	(3,280)	(7,105)
Distributions to noncontrolling interests	(265,435)	(337,810)
Cash dividends	(133,568)	(130,525)
Acquisition of treasury stock	(1,001,300)	(425,820)
Other financing activities	(3,419)	(4,272)
Cash used in financing activities	(1,395,546)	(920,674)
Effect of exchange rate changes on cash	(3,366)	3,243
Decrease in cash and cash equivalents and restricted cash and cash equivalents	(1,828,987)	(480,041)
Cash and cash equivalents and restricted cash and cash equivalents - beginning of year	6,386,792	4,361,220
Cash and cash equivalents and restricted cash and cash equivalents - end of three months	4,557,805	3,881,179
Non-cash investing activity:
Change in accrued plant and equipment purchases	$ (10,880)	$ (36,280)

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 844,841	$ 1,136,542

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Interim Presentation

Basis of Interim Presentation	3 Months Ended
	Mar. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Interim Presentation	1. Basis of Interim Presentation The information furnished in this Item 1 reflects all adjustments which are, in the opinion of management, necessary to a fair statement of the results for the interim periods presented and are of a normal and recurring nature unless otherwise noted. The information furnished has not been audited; however, the December 31, 2023 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements included in this Item 1 should be read in conjunction with the audited consolidated financial statements and the notes thereto included in Nucor’s Annual Report on Form 10-K for the year ended December 31, 2023. Recent Accounting Pronouncements In November 2023, new accounting guidance was issued that updates reportable segment disclosure requirements by requiring disclosures of significant reportable segment expenses that are regularly provided to the Chief Operating Decision Maker (the “CODM”) and included within each reported measure of a segment's profit or loss. This new guidance also requires disclosure of the title and position of the individual identified as the CODM and an explanation of how the CODM uses the reported measures of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources. The new guidance is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The new guidance is required to be applied retrospectively to all prior periods presented in the financial statements. Early adoption is also permitted. This new guidance will likely result in additional required disclosures when adopted. The Company is evaluating the impact that the adoption of this new guidance will have on its consolidated financial statements. In December 2023, new accounting guidance was issued related to income tax disclosures. The new guidance requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as additional information on income taxes paid. The new guidance is effective on a prospective basis for annual periods beginning after December 15, 2024. Early adoption is also permitted for annual financial statements that have not yet been issued or made available for issuance. This new guidance will likely result in additional required disclosures when adopted. The Company is evaluating the impact that the adoption of this new guidance will have on its consolidated financial statements.

Inventories

Inventories	3 Months Ended
	Mar. 30, 2024
Inventory Disclosure [Abstract]
Inventories	2. Inventories Inventories consisted of approxi mately 32 % raw materials and supplies and 68 % finished and semi-finished products at March 30, 2024 ( 37 % and 63 %, respectively, at December 31, 2023 ). Nucor’s manufacturing process consists of a continuous, vertically integrated process from which products are sold to customers at various stages throughout the process. Since most steel products can be classified as either finished or semi-finished products, these two categories of inventory are combined.

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 30, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	3. Property, Plant and Equipment Property, plant and equipment is recorded net of accumulated depreciation of $ 12.00 billion at March 30, 2024 ($ 11.79 billion at December 31, 2023 ).

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	3 Months Ended
	Mar. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	4. Goodwill and Other Intangible Assets The change in the net carrying amount of goodwill for the three months ended March 30, 2024 by segment was as follows (in thousands): Steel Mills Steel Products Raw Materials Total Balance at December 31, 2023 $ 675,186 $ 2,514,172 $ 779,489 $ 3,968,847 Acquisitions - - ( 8,366 ) ( 8,366 ) Translation - ( 4,419 ) - ( 4,419 ) Balance at March 30, 2024 $ 675,186 $ 2,509,753 $ 771,123 $ 3,956,062 Nucor completed its most recent annual goodwill impairment testing as of the first day of the fourth quarter of 2023 and concluded that as of such date there was no impairment of goodwill for any of its reporting units. Intangible assets with estimated useful lives of five to 25 years are amortized on a straight-line or accelerated basis and consisted of the following as of March 30, 2024 and December 31, 2023 (in thousands): March 30, 2024 December 31, 2023 Gross Amount Accumulated Gross Amount Accumulated Customer relationships $ 4,189,905 $ 1,347,718 $ 4,190,156 $ 1,295,778 Trademarks and trade names 372,142 174,182 372,153 168,363 Other 109,747 100,824 109,747 99,900 $ 4,671,794 $ 1,622,724 $ 4,672,056 $ 1,564,041 Intangible asset amortization expense in the first quarter of 2024 and 2023 was $ 58.7 million and $ 58.8 million, respectively. Annual amortization expense is estimated to be $ 234.4 million in 2024 ; $ 233.5 million in 2025; $ 230.5 million in 2026; $ 227.3 million in 2027; and $ 221.9 million in 2028.

Current Liabilities

Current Liabilities	3 Months Ended
	Mar. 30, 2024
Payables and Accruals [Abstract]
Current Liabilities	5. Current Liabilities Book overdrafts, included in accounts payable in the condensed consolidated balance sheets, were $ 71.0 million at March 30, 2024 ($ 159.0 million at December 31, 2023 ). Dividends payable, included in accrued expenses and other current liabilities in the condensed consolidated balance sheets, were $ 130.8 million at March 30, 2024 ($ 133.6 million at December 31, 2023 ). Accrued vacation and holiday pay, included in salaries, wages and related accruals in the condensed consolidated balance sheets, were $ 208.0 million at March 30, 2024 ($ 202.2 million at December 31, 2023 ).

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 30, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	6. Fair Value Measurements The following table summarizes information regarding Nucor’s financial assets and financial liabilities that were measured at fair value as of March 30, 2024 and December 31, 2023 (in thousands). Nucor does not have any non-financial assets or non-financial liabilities that are measured at fair value on a recurring basis. Fair Value Measurements at Reporting Date Using Description Carrying Quoted Prices Significant Significant As of March 30, 2024 Assets: Cash equivalents $ 3,964,716 $ 3,964,716 $ - $ - Short-term investments 981,179 981,179 - - Restricted cash and cash equivalents 46 46 - - Derivative contracts 138 - 138 - Other assets 50,740 7,965 - 42,775 Total assets $ 4,996,819 $ 4,953,906 $ 138 42,775 Liabilities: Derivative contracts $ ( 23,056 ) $ - $ ( 23,056 ) $ - As of December 31, 2023 Assets: Cash equivalents $ 5,724,549 $ 5,724,549 $ - $ - Short-term investments 747,479 747,479 - - Restricted cash and cash equivalents 3,494 3,494 - - Other assets 47,020 4,245 - 42,775 Total assets $ 6,522,542 $ 6,479,767 $ - 42,775 Liabilities: Derivative contracts $ ( 23,211 ) $ - $ ( 23,211 ) $ - Fair value measurements for Nucor’s cash equivalents, short-term investments and restricted cash and cash equivalents and an investment in a publicly traded nuclear power equipment manufacturer are classified under Level 1 because such measurements are based on quoted market prices in active markets for identical assets. Fair value measurements for Nucor’s derivatives, which are typically commodity or foreign exchange contracts, are classified under Level 2 because such measurements are based on published market prices for similar assets or are estimated based on observable inputs such as interest rates, yield curves, credit risks, spot and future commodity prices, and spot and future exchange rates. Fair value measurements for Nucor's investments in privately held companies, most of which are in a nuclear fusion technology company, are classified under Level 3 because such measurements are based on unobservable inputs that indicate a change in fair value, including the transaction price in the event of a change in ownership of the investee (e.g., the sale of other investors' interest in the company) or the transaction price in the event of additional equity issuances of the investee. There were no transfers between levels in the fair value hierarchy for the periods presented. The fair value of short-term and long-term debt, including current maturities, was approximately $ 6.16 billion at March 30, 2024 (approximately $ 6.22 billion at December 31, 2023). The debt fair value estimates are classified under Level 2 because such estimates are based on readily available market prices of our debt at March 30, 2024 and December 31, 2023 , or similar debt with the same maturities, ratings and interest rates.

Contingencies

Contingencies	3 Months Ended
	Mar. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Contingencies	7. Contingencies We are from time to time a party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. With respect to all such lawsuits, claims and proceedings, we record reserves when it is probable a liability has been incurred and the amount of loss can be reasonably estimated. We do not believe that any of these proceedings, individually or in the aggregate, would be expected to have a material adverse effect on our results of operations, financial position or cash flows. Nucor maintains liability insurance with self-insurance limits for certain risks.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 30, 2024
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	8. Stock-Based Compensation Stock Options A summary of activity under Nucor’s stock option plans for the first quarter of 2024 is as follows (shares and aggregate intrinsic value in thousands): Weighted- Weighted- Average Average Aggregate Exercise Remaining Intrinsic Shares Price Contractual Life Value Number of shares under stock options: Outstanding at beginning of year 718 $ 78.33 Granted - $ - Exercised ( 54 ) $ 50.09 $ 7,594 Canceled - $ - Outstanding at March 30, 2024 664 $ 80.61 6.9 years $ 77,915 Stock options exercisable at March 30, 2024 380 $ 48.09 6.1 years $ 56,861 Compensation expense for stock options was $ 0.4 million and $ 0.5 million in the first quarter of 2024 and 2023, respectively. As of March 30, 2024 , unrecognized compensation expense related to stock options was $ 1.6 million, which we expect to recognize over a weighted-average period of 1.8 years. Restricted Stock Units A summary of Nucor’s restricted stock unit (“RSU”) activity for the first quarter of 2024 is as follows (shares in thousands): Shares Grant Date Restricted stock units: Unvested at beginning of year 947 $ 124.89 Granted - $ - Vested ( 8 ) $ 130.67 Canceled ( 5 ) $ 129.87 Unvested at March 30, 2024 934 $ 124.82 Compensation expense for RSUs was $ 12.9 million and $ 12.2 million in the first quarter of 2024 and 2023, respectively. As of March 30, 2024 , unrecognized compensation expense related to unvested RSUs was $ 70.5 million, which we expect to recognize over a weighted-average period of 1.0 year. Restricted Stock Awards A summary of Nucor’s restricted stock activity under the Nucor Corporation Senior Officers Annual Incentive Plan (a supplement to the Nucor Corporation 2014 Omnibus Incentive Compensation Plan, the “AIP”) and the Nucor Corporation Senior Officers Long-Term Incentive Plan (a supplement to the Nucor Corporation 2014 Omnibus Incentive Compensation Plan, the “LTIP”) for the first quarter of 2024 is as follows (shares in thousands): Grant Date Shares Fair Value Restricted stock units and restricted stock awards: Unvested at beginning of year 210 $ 145.55 Granted 421 $ 187.54 Vested ( 350 ) $ 176.74 Canceled - $ - Unvested at March 30, 2024 281 $ 169.57 Compensation expense for common stock and common stock units awarded under the AIP and the LTIP is recorded over the performance measurement and vesting periods based on the anticipated number and market value of shares of common stock and common stock units to be awarded. Compensation expense for anticipated awards based upon Nucor’s financial performance, exclusive of amounts payable in cash, was $ 8.0 million and $ 7.7 million in the first quarter of 2024 and 2023, respectively. As of March 30, 2024 , unrecognized compensation expense related to unvested restricted stock awards was $ 17.2 million, which we expect to recognize over a weighted-average period of 2.16 years.

Employee Benefit Plan

Employee Benefit Plan	3 Months Ended
	Mar. 30, 2024
Retirement Benefits [Abstract]
Employee Benefit Plan	9. Employee Benefit Plan Nucor makes contributions to a Profit Sharing and Retirement Savings Plan for qualified employees based on the profitability of the Company. Nucor’s expense for these benefits totaled $ 123.3 million and $ 162.2 million in the first quarter of 2024 and 2023 , respectively. The related liability for these benefits is included in salaries, wages and related accruals in the condensed consolidated balance sheets.

Interest (Income) Expense

Interest (Income) Expense	3 Months Ended
	Mar. 30, 2024
Banking and Thrift, Interest [Abstract]
Interest (Income) Expense	10. Interest (Income) Expense The components of net interest (income) expense for the first quarter of 2024 and 2023 are as follows (in thousands): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Interest expense $ 43,487 $ 62,682 Interest income ( 81,274 ) ( 52,499 ) Interest (income) expense, net $ ( 37,787 ) $ 10,183

Income Taxes

Income Taxes	3 Months Ended
	Mar. 30, 2024
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes The effective tax rate for the first quarter of 2024 was 21.7 % compared to 22.9 % for the first quarter of 2023. The decrease in the effective tax rate for the first quarter of 2024 as compared to the first quarter of 2023 was primarily due to increased federal tax credits and the change in relative proportions of net earnings attributable to noncontrolling interests to total pre-tax earnings between the periods. The Internal Revenue Service (the “IRS”) is currently examining Nucor’s 2015, 2019, and 2020 federal income tax returns. Nucor has concluded U.S. federal income tax matters for the tax years through 2014, and for the tax years 2016 and 2018. The tax years 2017, 2021, and 2022 remain open to examination by the IRS. The 2015 through 2021 Canadian income tax returns for Nucor Rebar Fabrication Group Inc. (formerly known as Harris Steel Group Inc.) and certain related affiliates are currently under examination by the Canada Revenue Agency. The tax years 2016 through 2022 remain open to examination by other major taxing jurisdictions to which Nucor is subject (primarily Canada, Trinidad & Tobago, and other state and local jurisdictions). Non-current deferred tax assets included in other assets in the condensed consolidated balance sheets were $ 42.0 million at March 30, 2024 ($ 40.7 million at December 31, 2023). Non-current deferred tax liabilities included in deferred credits and other liabilities in the condensed consolidated balance sheets were $ 1.29 billion at March 30, 2024 ($ 1.33 billion at December 31, 2023).

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 30, 2024
Equity [Abstract]
Stockholders' Equity	12. Stockholders’ Equity The following tables reflect the changes in stockholders’ equity attributable to Nucor and the noncontrolling interests of Nucor’s joint ventures - Nucor-Yamato Steel Company (Limited Partnership) (“NYS”), California Steel Industries, Inc. (“CSI”) and Nucor-JFE Steel Mexico, S. de R.L. de C.V. ("NJSM") - in each of which Nucor owns 51 % (the third of which Nucor acquired an additional 1 % interest in the fourth quarter of 2023, bringing our total equity ownership to a 51 % controlling interest), for the three months ended March 30, 2024 and April 1, 2023 (in thousands): Three Months (13 Weeks) Ended March 30, 2024 Accumulated Total Additional Other Treasury Stock Nucor Common Stock Paid-in Retained Comprehensive (at cost) Stockholders' Noncontrolling Total Shares Amount Capital Earnings Income (Loss) Shares Amount Equity Interests BALANCES, December 31, 2023 $ 22,123,754 380,154 $ 152,061 $ 2,176,243 $ 28,762,045 $ ( 162,072 ) 135,252 $ ( 9,987,643 ) $ 20,940,634 $ 1,183,120 Net earnings before noncontrolling interests 958,962 - - - 844,841 - - - 844,841 114,121 Other comprehensive income (loss) ( 15,368 ) - - - - ( 15,368 ) - - ( 15,368 ) - Stock options exercised 2,688 - - ( 1,449 ) - - ( 54 ) 4,137 2,688 - Stock option expense 392 - - 392 - - - - 392 - Issuance of stock under award plans, 59,964 - - 33,037 - - ( 344 ) 26,927 59,964 - Amortization of unearned 2,600 - - 2,600 - - - - 2,600 - Treasury stock acquired, and net impact of excise tax ( 1,011,239 ) - - - - - 5,538 ( 1,011,239 ) ( 1,011,239 ) - Cash dividends declared ( 130,799 ) - - - ( 130,799 ) - - - ( 130,799 ) - Distributions to noncontrolling ( 265,435 ) - - - - - - - - ( 265,435 ) BALANCES, March 30, 2024 $ 21,725,519 380,154 $ 152,061 $ 2,210,823 $ 29,476,087 $ ( 177,440 ) 140,392 $ ( 10,967,818 ) $ 20,693,713 $ 1,031,806 Three Months (13 Weeks) Ended April 1, 2023 Accumulated Total Additional Other Treasury Stock Nucor Common Stock Paid-in Retained Comprehensive (at cost) Stockholders' Noncontrolling Total Shares Amount Capital Earnings Income (Loss) Shares Amount Equity Interests BALANCES, December 31, 2022 $ 19,569,906 380,154 $ 152,061 $ 2,143,520 $ 24,754,873 $ ( 137,517 ) 126,661 $ ( 8,498,243 ) $ 18,414,694 $ 1,155,212 Net earnings before noncontrolling interests 1,231,629 - - - 1,136,542 - - - 1,136,542 95,087 Other comprehensive income (loss) ( 27,841 ) - - - - ( 27,841 ) - - ( 27,841 ) - Stock options exercised 7,123 - - ( 1,749 ) - - ( 131 ) 8,872 7,123 - Stock option expense 475 - - 475 - - - - 475 - Issuance of stock under award plans, 43,820 - - 24,760 - - ( 323 ) 19,060 43,820 - Amortization of unearned 1,764 - - 1,764 - - - - 1,764 - Treasury stock acquired, and net impact of excise tax ( 429,813 ) - - - - - 2,723 ( 429,813 ) ( 429,813 ) - Cash dividends declared ( 129,383 ) - - - ( 129,383 ) - - - ( 129,383 ) - Distributions to noncontrolling ( 337,810 ) - - - - - - - - ( 337,810 ) BALANCES, April 1, 2023 $ 19,929,870 380,154 $ 152,061 $ 2,168,770 $ 25,762,032 $ ( 165,358 ) 128,930 $ ( 8,900,124 ) $ 19,017,381 $ 912,489 Dividends declared per share were $ 0.54 per share in the first quarter of 2024 ($ 0.51 per share in the first quarter of 2023). On May 11, 2023, the Company announced that its Board of Directors had approved a share repurchase program under which the Company is authorized to repurchase up to $ 4.00 billion of the Company’s common stock and terminated all previously authorized share repurchase programs. Share repurchases are made from time to time in the open market at prevailing market prices or through private transactions or block trades. The timing and amount of repurchases will depend on market conditions, share price, applicable legal requirements and other factors. The share repurchase authorization is discretionary and has no expiration date. As of March 30, 2024 , the Company had approximately $ 2.32 billion available for share repurchases under the program authorized by the Company’s Board of Directors.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 30, 2024
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	13. Accumulated Other Comprehensive Income (Loss) The following tables reflect the changes in accumulated other comprehensive income (loss) by component for the three months ended March 30, 2024 and April 1, 2023 (in thousands): Three-Month (13-Week) Period Ended March 30, 2024 Gains and (Losses) on Foreign Currency Adjustment to Early Hedging Derivatives Gains (Losses) Retiree Medical Plan Total Accumulated other comprehensive $ ( 13,900 ) $ ( 159,175 ) $ 11,003 $ ( 162,072 ) Other comprehensive income (loss) ( 5,241 ) ( 15,468 ) - ( 20,709 ) Amounts reclassified from accumulated (1) 5,341 - - 5,341 Net current-period other 100 ( 15,468 ) - ( 15,368 ) Accumulated other comprehensive $ ( 13,800 ) $ ( 174,643 ) $ 11,003 $ ( 177,440 ) Three-Month (13-Week) Period Ended April 1, 2023 Gains and (Losses) on Foreign Currency Adjustment to Early Hedging Derivatives Gains (Losses) Retiree Medical Plan Total Accumulated other comprehensive $ 26,100 $ ( 180,216 ) $ 16,599 $ ( 137,517 ) Other comprehensive income (loss) ( 24,575 ) ( 3,441 ) - ( 28,016 ) Amounts reclassified from accumulated (1) 175 - - 175 Net current-period other ( 24,400 ) ( 3,441 ) - ( 27,841 ) Accumulated other comprehensive $ 1,700 $ ( 183,657 ) $ 16,599 $ ( 165,358 ) (1) Includes $ 5,341 and $ 175 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts in the first quarter of 2024 and 2023 , respectively. The tax impact of those reclassifications was $ 1,800 and $ 100 in the first quarter of 2024 and 2023 , respectively.

Segments

Segments	3 Months Ended
	Mar. 30, 2024
Segment Reporting [Abstract]
Segments	14. Segments Nucor reports its results in the following segments: steel mills, steel products and raw materials. The steel mills segment includes carbon and alloy steel in sheet, bars, structural and plate; steel trading and rebar distribution businesses; and Nucor’s equity method investments in NuMit LLC (“NuMit”). The steel products segment includes steel joists and joist girders, steel deck, fabricated concrete reinforcing steel, cold finished steel, precision castings, steel fasteners, metal building systems, insulated metal panels, overhead doors, steel grating, tubular products, steel racking, piling products, wire and wire mesh, and utility towers and structures. The raw materials segment includes The David J. Joseph Company and its affiliates (“DJJ”), primarily a scrap broker and processor; Nu-Iron Unlimited and Nucor Steel Louisiana LLC (“Nucor Steel Louisiana”), two facilities that produce direct reduced iron (“DRI”) used by the steel mills; and our natural gas production operations. Corporate/eliminations include items such as net interest (income) expense, charges and credits associated with changes in allowances to eliminate intercompany profit in inventory, profit sharing expense and stock-based compensation. Corporate assets primarily include cash and cash equivalents, short-term investments, restricted cash and cash equivalents, allowances to eliminate intercompany profit in inventory, deferred income tax assets, federal and state income taxes receivable and investments in and advances to affiliates. Nucor’s results by segment for the first quarter of 2024 and 2023 were as follows (in thousands): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Net sales to external customers: Steel mills $ 5,168,778 $ 4,979,257 Steel products 2,516,868 3,275,997 Raw materials 451,437 454,726 $ 8,137,083 $ 8,709,980 Intercompany sales: Steel mills $ 1,250,863 $ 1,163,632 Steel products 137,444 100,361 Raw materials 3,110,029 3,170,892 Corporate/eliminations ( 4,498,336 ) ( 4,434,885 ) $ - $ - Earnings before income taxes and Steel mills $ 1,102,251 $ 838,388 Steel products 511,559 970,802 Raw materials 9,581 58,140 Corporate/eliminations ( 398,050 ) ( 270,546 ) $ 1,225,341 $ 1,596,784 March 30, 2024 Dec. 31, 2023 Assets: Steel mills $ 15,557,704 $ 15,407,266 Steel products 11,012,416 10,914,870 Raw materials 3,443,812 3,546,759 Corporate/eliminations 3,918,593 5,471,604 $ 33,932,525 $ 35,340,499

Revenue

Revenue	3 Months Ended
	Mar. 30, 2024
Revenue from Contract with Customer [Abstract]
Revenue	15. Revenue The following tables disaggregate our revenue by major source for the first quarter of 2024 and 2023 (in thousands): Three Months (13 Weeks) Ended March 30, 2024 Steel Steel Raw Total Sheet $ 2,710,337 $ - $ - $ 2,710,337 Bar 1,334,898 - - 1,334,898 Structural 611,007 - - 611,007 Plate 512,536 - - 512,536 Tubular Products - 368,724 - 368,724 Rebar Fabrication - 412,341 - 412,341 Joist - 330,601 - 330,601 Deck - 268,630 - 268,630 Building Systems - 314,013 - 314,013 Other Steel Products - 822,559 - 822,559 Raw Materials - - 451,437 451,437 $ 5,168,778 $ 2,516,868 $ 451,437 $ 8,137,083 Three Months (13 Weeks) Ended April 1, 2023 Steel Steel Raw Total Sheet $ 2,102,694 $ - $ - $ 2,102,694 Bar 1,598,128 - - 1,598,128 Structural 638,307 - - 638,307 Plate 640,128 - - 640,128 Tubular Products - 438,983 - 438,983 Rebar Fabrication - 498,117 - 498,117 Joist - 635,816 - 635,816 Deck - 485,443 - 485,443 Building Systems 281,910 - 281,910 Other Steel Products - 935,728 - 935,728 Raw Materials - - 454,726 454,726 $ 4,979,257 $ 3,275,997 $ 454,726 $ 8,709,980 Contract liabilities are primarily related to deferred revenue resulting from cash payments received in advance from customers to protect against credit risk. Contract liabilities totaled $ 346.3 million as of March 30, 2024 ($ 313.8 million as of December 31, 2023 ) and are included in accrued expenses and other current liabilities in the condensed consolidated balance sheets.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 30, 2024
Earnings Per Share [Abstract]
Earnings Per Share	16. Earnings Per Share The computations of basic and diluted net earnings per share for the first quarter of 2024 and 2023 are as follows (in thousands, except per share data): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Basic net earnings per share: Basic net earnings $ 844,841 $ 1,136,542 Earnings allocated to participating securities ( 3,221 ) ( 3,413 ) Net earnings available to common stockholders $ 841,620 $ 1,133,129 Basic average shares outstanding 243,098 253,608 Basic net earnings per share $ 3.46 $ 4.47 Diluted net earnings per share: Diluted net earnings $ 844,841 $ 1,136,542 Earnings allocated to participating securities ( 3,213 ) ( 3,392 ) Net earnings available to common stockholders $ 841,628 $ 1,133,150 Diluted average shares outstanding: Basic average shares outstanding 243,098 253,608 Dilutive effect of stock options and other 399 789 243,497 254,397 Diluted net earnings per share $ 3.46 $ 4.45 There were no shares excluded from the computation of diluted earnings per common share because their effect would have been antidilutive in either the first quarter of 2024 or the first quarter of 2023 .

Basis of Interim Presentation (

Basis of Interim Presentation (Policies)	3 Months Ended
	Mar. 30, 2024
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In November 2023, new accounting guidance was issued that updates reportable segment disclosure requirements by requiring disclosures of significant reportable segment expenses that are regularly provided to the Chief Operating Decision Maker (the “CODM”) and included within each reported measure of a segment's profit or loss. This new guidance also requires disclosure of the title and position of the individual identified as the CODM and an explanation of how the CODM uses the reported measures of a segment’s profit or loss in assessing segment performance and deciding how to allocate resources. The new guidance is effective for annual periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The new guidance is required to be applied retrospectively to all prior periods presented in the financial statements. Early adoption is also permitted. This new guidance will likely result in additional required disclosures when adopted. The Company is evaluating the impact that the adoption of this new guidance will have on its consolidated financial statements. In December 2023, new accounting guidance was issued related to income tax disclosures. The new guidance requires disaggregated information about a reporting entity’s effective tax rate reconciliation as well as additional information on income taxes paid. The new guidance is effective on a prospective basis for annual periods beginning after December 15, 2024. Early adoption is also permitted for annual financial statements that have not yet been issued or made available for issuance. This new guidance will likely result in additional required disclosures when adopted. The Company is evaluating the impact that the adoption of this new guidance will have on its consolidated financial statements.

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Mar. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Change in Net Carrying Amount of Goodwill by Segment	The change in the net carrying amount of goodwill for the three months ended March 30, 2024 by segment was as follows (in thousands): Steel Mills Steel Products Raw Materials Total Balance at December 31, 2023 $ 675,186 $ 2,514,172 $ 779,489 $ 3,968,847 Acquisitions - - ( 8,366 ) ( 8,366 ) Translation - ( 4,419 ) - ( 4,419 ) Balance at March 30, 2024 $ 675,186 $ 2,509,753 $ 771,123 $ 3,956,062
Schedule of Intangible Assets	Intangible assets with estimated useful lives of five to 25 years are amortized on a straight-line or accelerated basis and consisted of the following as of March 30, 2024 and December 31, 2023 (in thousands): March 30, 2024 December 31, 2023 Gross Amount Accumulated Gross Amount Accumulated Customer relationships $ 4,189,905 $ 1,347,718 $ 4,190,156 $ 1,295,778 Trademarks and trade names 372,142 174,182 372,153 168,363 Other 109,747 100,824 109,747 99,900 $ 4,671,794 $ 1,622,724 $ 4,672,056 $ 1,564,041

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 30, 2024
Fair Value Disclosures [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value	The following table summarizes information regarding Nucor’s financial assets and financial liabilities that were measured at fair value as of March 30, 2024 and December 31, 2023 (in thousands). Nucor does not have any non-financial assets or non-financial liabilities that are measured at fair value on a recurring basis. Fair Value Measurements at Reporting Date Using Description Carrying Quoted Prices Significant Significant As of March 30, 2024 Assets: Cash equivalents $ 3,964,716 $ 3,964,716 $ - $ - Short-term investments 981,179 981,179 - - Restricted cash and cash equivalents 46 46 - - Derivative contracts 138 - 138 - Other assets 50,740 7,965 - 42,775 Total assets $ 4,996,819 $ 4,953,906 $ 138 42,775 Liabilities: Derivative contracts $ ( 23,056 ) $ - $ ( 23,056 ) $ - As of December 31, 2023 Assets: Cash equivalents $ 5,724,549 $ 5,724,549 $ - $ - Short-term investments 747,479 747,479 - - Restricted cash and cash equivalents 3,494 3,494 - - Other assets 47,020 4,245 - 42,775 Total assets $ 6,522,542 $ 6,479,767 $ - 42,775 Liabilities: Derivative contracts $ ( 23,211 ) $ - $ ( 23,211 ) $ -

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 30, 2024
Share-Based Payment Arrangement [Abstract]
Summary of Stock Option Plans Activity	A summary of activity under Nucor’s stock option plans for the first quarter of 2024 is as follows (shares and aggregate intrinsic value in thousands): Weighted- Weighted- Average Average Aggregate Exercise Remaining Intrinsic Shares Price Contractual Life Value Number of shares under stock options: Outstanding at beginning of year 718 $ 78.33 Granted - $ - Exercised ( 54 ) $ 50.09 $ 7,594 Canceled - $ - Outstanding at March 30, 2024 664 $ 80.61 6.9 years $ 77,915 Stock options exercisable at March 30, 2024 380 $ 48.09 6.1 years $ 56,861
Summary of Nucor's Restricted Stock Unit ("RSU") Activity	A summary of Nucor’s restricted stock unit (“RSU”) activity for the first quarter of 2024 is as follows (shares in thousands): Shares Grant Date Restricted stock units: Unvested at beginning of year 947 $ 124.89 Granted - $ - Vested ( 8 ) $ 130.67 Canceled ( 5 ) $ 129.87 Unvested at March 30, 2024 934 $ 124.82
Summary of Nucor's Restricted Stock Activity under AIP and LTIP	A summary of Nucor’s restricted stock activity under the Nucor Corporation Senior Officers Annual Incentive Plan (a supplement to the Nucor Corporation 2014 Omnibus Incentive Compensation Plan, the “AIP”) and the Nucor Corporation Senior Officers Long-Term Incentive Plan (a supplement to the Nucor Corporation 2014 Omnibus Incentive Compensation Plan, the “LTIP”) for the first quarter of 2024 is as follows (shares in thousands): Grant Date Shares Fair Value Restricted stock units and restricted stock awards: Unvested at beginning of year 210 $ 145.55 Granted 421 $ 187.54 Vested ( 350 ) $ 176.74 Canceled - $ - Unvested at March 30, 2024 281 $ 169.57

Interest (Income) Expense (Tabl

Interest (Income) Expense (Tables)	3 Months Ended
	Mar. 30, 2024
Banking and Thrift, Interest [Abstract]
Schedule of Components of Net Interest Expense	The components of net interest (income) expense for the first quarter of 2024 and 2023 are as follows (in thousands): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Interest expense $ 43,487 $ 62,682 Interest income ( 81,274 ) ( 52,499 ) Interest (income) expense, net $ ( 37,787 ) $ 10,183

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 30, 2024
Equity [Abstract]
Schedule Of Changes In Stock Holders Equity	The following tables reflect the changes in stockholders’ equity attributable to Nucor and the noncontrolling interests of Nucor’s joint ventures - Nucor-Yamato Steel Company (Limited Partnership) (“NYS”), California Steel Industries, Inc. (“CSI”) and Nucor-JFE Steel Mexico, S. de R.L. de C.V. ("NJSM") - in each of which Nucor owns 51 % (the third of which Nucor acquired an additional 1 % interest in the fourth quarter of 2023, bringing our total equity ownership to a 51 % controlling interest), for the three months ended March 30, 2024 and April 1, 2023 (in thousands): Three Months (13 Weeks) Ended March 30, 2024 Accumulated Total Additional Other Treasury Stock Nucor Common Stock Paid-in Retained Comprehensive (at cost) Stockholders' Noncontrolling Total Shares Amount Capital Earnings Income (Loss) Shares Amount Equity Interests BALANCES, December 31, 2023 $ 22,123,754 380,154 $ 152,061 $ 2,176,243 $ 28,762,045 $ ( 162,072 ) 135,252 $ ( 9,987,643 ) $ 20,940,634 $ 1,183,120 Net earnings before noncontrolling interests 958,962 - - - 844,841 - - - 844,841 114,121 Other comprehensive income (loss) ( 15,368 ) - - - - ( 15,368 ) - - ( 15,368 ) - Stock options exercised 2,688 - - ( 1,449 ) - - ( 54 ) 4,137 2,688 - Stock option expense 392 - - 392 - - - - 392 - Issuance of stock under award plans, 59,964 - - 33,037 - - ( 344 ) 26,927 59,964 - Amortization of unearned 2,600 - - 2,600 - - - - 2,600 - Treasury stock acquired, and net impact of excise tax ( 1,011,239 ) - - - - - 5,538 ( 1,011,239 ) ( 1,011,239 ) - Cash dividends declared ( 130,799 ) - - - ( 130,799 ) - - - ( 130,799 ) - Distributions to noncontrolling ( 265,435 ) - - - - - - - - ( 265,435 ) BALANCES, March 30, 2024 $ 21,725,519 380,154 $ 152,061 $ 2,210,823 $ 29,476,087 $ ( 177,440 ) 140,392 $ ( 10,967,818 ) $ 20,693,713 $ 1,031,806 Three Months (13 Weeks) Ended April 1, 2023 Accumulated Total Additional Other Treasury Stock Nucor Common Stock Paid-in Retained Comprehensive (at cost) Stockholders' Noncontrolling Total Shares Amount Capital Earnings Income (Loss) Shares Amount Equity Interests BALANCES, December 31, 2022 $ 19,569,906 380,154 $ 152,061 $ 2,143,520 $ 24,754,873 $ ( 137,517 ) 126,661 $ ( 8,498,243 ) $ 18,414,694 $ 1,155,212 Net earnings before noncontrolling interests 1,231,629 - - - 1,136,542 - - - 1,136,542 95,087 Other comprehensive income (loss) ( 27,841 ) - - - - ( 27,841 ) - - ( 27,841 ) - Stock options exercised 7,123 - - ( 1,749 ) - - ( 131 ) 8,872 7,123 - Stock option expense 475 - - 475 - - - - 475 - Issuance of stock under award plans, 43,820 - - 24,760 - - ( 323 ) 19,060 43,820 - Amortization of unearned 1,764 - - 1,764 - - - - 1,764 - Treasury stock acquired, and net impact of excise tax ( 429,813 ) - - - - - 2,723 ( 429,813 ) ( 429,813 ) - Cash dividends declared ( 129,383 ) - - - ( 129,383 ) - - - ( 129,383 ) - Distributions to noncontrolling ( 337,810 ) - - - - - - - - ( 337,810 ) BALANCES, April 1, 2023 $ 19,929,870 380,154 $ 152,061 $ 2,168,770 $ 25,762,032 $ ( 165,358 ) 128,930 $ ( 8,900,124 ) $ 19,017,381 $ 912,489

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 30, 2024
Equity [Abstract]
Components of Accumulated Other Comprehensive Income (Loss)	The following tables reflect the changes in accumulated other comprehensive income (loss) by component for the three months ended March 30, 2024 and April 1, 2023 (in thousands): Three-Month (13-Week) Period Ended March 30, 2024 Gains and (Losses) on Foreign Currency Adjustment to Early Hedging Derivatives Gains (Losses) Retiree Medical Plan Total Accumulated other comprehensive $ ( 13,900 ) $ ( 159,175 ) $ 11,003 $ ( 162,072 ) Other comprehensive income (loss) ( 5,241 ) ( 15,468 ) - ( 20,709 ) Amounts reclassified from accumulated (1) 5,341 - - 5,341 Net current-period other 100 ( 15,468 ) - ( 15,368 ) Accumulated other comprehensive $ ( 13,800 ) $ ( 174,643 ) $ 11,003 $ ( 177,440 ) Three-Month (13-Week) Period Ended April 1, 2023 Gains and (Losses) on Foreign Currency Adjustment to Early Hedging Derivatives Gains (Losses) Retiree Medical Plan Total Accumulated other comprehensive $ 26,100 $ ( 180,216 ) $ 16,599 $ ( 137,517 ) Other comprehensive income (loss) ( 24,575 ) ( 3,441 ) - ( 28,016 ) Amounts reclassified from accumulated (1) 175 - - 175 Net current-period other ( 24,400 ) ( 3,441 ) - ( 27,841 ) Accumulated other comprehensive $ 1,700 $ ( 183,657 ) $ 16,599 $ ( 165,358 ) (1) Includes $ 5,341 and $ 175 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts in the first quarter of 2024 and 2023 , respectively. The tax impact of those reclassifications was $ 1,800 and $ 100 in the first quarter of 2024 and 2023 , respectively.

Segments (Tables)

Segments (Tables)	3 Months Ended
	Mar. 30, 2024
Segment Reporting [Abstract]
Segments	Nucor’s results by segment for the first quarter of 2024 and 2023 were as follows (in thousands): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Net sales to external customers: Steel mills $ 5,168,778 $ 4,979,257 Steel products 2,516,868 3,275,997 Raw materials 451,437 454,726 $ 8,137,083 $ 8,709,980 Intercompany sales: Steel mills $ 1,250,863 $ 1,163,632 Steel products 137,444 100,361 Raw materials 3,110,029 3,170,892 Corporate/eliminations ( 4,498,336 ) ( 4,434,885 ) $ - $ - Earnings before income taxes and Steel mills $ 1,102,251 $ 838,388 Steel products 511,559 970,802 Raw materials 9,581 58,140 Corporate/eliminations ( 398,050 ) ( 270,546 ) $ 1,225,341 $ 1,596,784 March 30, 2024 Dec. 31, 2023 Assets: Steel mills $ 15,557,704 $ 15,407,266 Steel products 11,012,416 10,914,870 Raw materials 3,443,812 3,546,759 Corporate/eliminations 3,918,593 5,471,604 $ 33,932,525 $ 35,340,499

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 30, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Net Sales Disaggregates by Major Source	The following tables disaggregate our revenue by major source for the first quarter of 2024 and 2023 (in thousands): Three Months (13 Weeks) Ended March 30, 2024 Steel Steel Raw Total Sheet $ 2,710,337 $ - $ - $ 2,710,337 Bar 1,334,898 - - 1,334,898 Structural 611,007 - - 611,007 Plate 512,536 - - 512,536 Tubular Products - 368,724 - 368,724 Rebar Fabrication - 412,341 - 412,341 Joist - 330,601 - 330,601 Deck - 268,630 - 268,630 Building Systems - 314,013 - 314,013 Other Steel Products - 822,559 - 822,559 Raw Materials - - 451,437 451,437 $ 5,168,778 $ 2,516,868 $ 451,437 $ 8,137,083 Three Months (13 Weeks) Ended April 1, 2023 Steel Steel Raw Total Sheet $ 2,102,694 $ - $ - $ 2,102,694 Bar 1,598,128 - - 1,598,128 Structural 638,307 - - 638,307 Plate 640,128 - - 640,128 Tubular Products - 438,983 - 438,983 Rebar Fabrication - 498,117 - 498,117 Joist - 635,816 - 635,816 Deck - 485,443 - 485,443 Building Systems 281,910 - 281,910 Other Steel Products - 935,728 - 935,728 Raw Materials - - 454,726 454,726 $ 4,979,257 $ 3,275,997 $ 454,726 $ 8,709,980

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 30, 2024
Earnings Per Share [Abstract]
Computations of Basic and Diluted Net Earnings Per Share	The computations of basic and diluted net earnings per share for the first quarter of 2024 and 2023 are as follows (in thousands, except per share data): Three Months (13 Weeks) Ended March 30, 2024 April 1, 2023 Basic net earnings per share: Basic net earnings $ 844,841 $ 1,136,542 Earnings allocated to participating securities ( 3,221 ) ( 3,413 ) Net earnings available to common stockholders $ 841,620 $ 1,133,129 Basic average shares outstanding 243,098 253,608 Basic net earnings per share $ 3.46 $ 4.47 Diluted net earnings per share: Diluted net earnings $ 844,841 $ 1,136,542 Earnings allocated to participating securities ( 3,213 ) ( 3,392 ) Net earnings available to common stockholders $ 841,628 $ 1,133,150 Diluted average shares outstanding: Basic average shares outstanding 243,098 253,608 Dilutive effect of stock options and other 399 789 243,497 254,397 Diluted net earnings per share $ 3.46 $ 4.45

Inventories - Additional Inform

Inventories - Additional Information (Detail)	Mar. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials and supplies in inventory, percentage	32%	37%
Finished and semi-finished products in inventory, percentage	68%	63%

Property, Plant and Equipment -

Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	Mar. 30, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Accumulated depreciation	$ 12,000	$ 11,790

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Schedule of Change in Net Carrying Amount of Goodwill by Segment (Detail) $ in Thousands	3 Months Ended
	Mar. 30, 2024 USD ($)
Goodwill [Line Items]
Balance, beginning of period	$ 3,968,847
Acquisitions	(8,366)
Translation	(4,419)
Balance, end of period	3,956,062
Steel Mills [Member]
Goodwill [Line Items]
Balance, beginning of period	675,186
Balance, end of period	675,186
Steel Products [Member]
Goodwill [Line Items]
Balance, beginning of period	2,514,172
Translation	(4,419)
Balance, end of period	2,509,753
Raw Materials [Member]
Goodwill [Line Items]
Balance, beginning of period	779,489
Acquisitions	(8,366)
Balance, end of period	$ 771,123

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Finite And Indefinite Lived Intangible Assets [Line Items]
Impairment of goodwill	$ 0
Goodwill	3,956,062,000		$ 3,968,847,000
Finite-lived intangible assets	3,049,070,000		$ 3,108,015,000
Intangible asset amortization expense	58,700,000	$ 58,800,000
Future amortization expense, in 2024	234,400,000
Future amortization expense, in 2025	233,500,000
Future amortization expense, in 2026	230,500,000
Future amortization expense, in 2027	227,300,000
Future amortization expense, in 2028	$ 221,900,000
Minimum [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, useful life	5 years
Maximum [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, useful life	25 years

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	$ 4,671,794	$ 4,672,056
Intangible assets, Accumulated Amortization	1,622,724	1,564,041
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	4,189,905	4,190,156
Intangible assets, Accumulated Amortization	1,347,718	1,295,778
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	372,142	372,153
Intangible assets, Accumulated Amortization	174,182	168,363
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	109,747	109,747
Intangible assets, Accumulated Amortization	$ 100,824	$ 99,900

Current Liabilities - Additiona

Current Liabilities - Additional Information (Detail) - USD ($) $ in Millions	Mar. 30, 2024	Dec. 31, 2023
Liabilities, Current [Abstract]
Book overdrafts	$ 71	$ 159
Dividends payable, current	130.8	133.6
Accrued vacation and holiday pay	$ 208	$ 202.2

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	$ 981,179	$ 747,479
Total assets	33,932,525	35,340,499
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	3,964,716	5,724,549
Short-term investments	981,179	747,479
Restricted cash and cash equivalents	46	3,494
Derivative contracts, assets	138
Other assets	50,740	47,020
Total assets	4,996,819	6,522,542
Derivative contracts, liabilities	(23,056)	(23,211)
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	3,964,716	5,724,549
Short-term investments	981,179	747,479
Restricted cash and cash equivalents	46	3,494
Other assets	7,965	4,245
Total assets	4,953,906	6,479,767
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative contracts, assets	138
Total assets	138
Derivative contracts, liabilities	(23,056)	(23,211)
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other assets	42,775	42,775
Total assets	$ 42,775	$ 42,775

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	Mar. 30, 2024	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair value of short-term and long-term debt, including current maturities	$ 6,160	$ 6,220

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Stock Option Plans Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2024 USD ($) $ / shares shares
Share-Based Payment Arrangement [Abstract]
Outstanding at beginning of year, Shares | shares	718
Exercised, Shares | shares	(54)
Outstanding at March 30, 2024, Shares | shares	664
Stock options exercisable at March 30, 2024, Shares | shares	380
Outstanding at beginning of year, Weighted - Average Exercise Price | $ / shares	$ 78.33
Exercised, Weighted - Average Exercise Price | $ / shares	50.09
Outstanding at March 30, 2024, Weighted - Average Exercise Price | $ / shares	80.61
Stock options exercisable at March 30, 2024, Weighted - Average Exercise Price | $ / shares	$ 48.09
Outstanding, Weighted - Average Remaining Contractual Life	6 years 10 months 24 days
Stock options exercisable, Weighted - Average Remaining Contractual Life	6 years 1 month 6 days
Exercised, Aggregate Intrinsic Value | $	$ 7,594
Outstanding at March 30, 2024, Aggregate Intrinsic Value | $	77,915
Stock options exercisable, Aggregate Intrinsic Value | $	$ 56,861

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses for stock options	$ 0.4	$ 0.5
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	$ 1.6
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	1 year 9 months 18 days
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	$ 70.5
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	1 year
Compensation expense	$ 12.9	12.2
Restricted Stock Awards and Units [Member] | AIP and LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	$ 17.2
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	2 years 1 month 28 days
Compensation expense	$ 8	$ 7.7

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Nucor's Restricted Stock Unit ("RSU") Activity (Detail) - Restricted Stock Units [Member] shares in Thousands	3 Months Ended
	Mar. 30, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at beginning of year, Shares | shares	947
Vested, Shares | shares	(8)
Canceled, Shares | shares	(5)
Unvested at March 30, 2024, Shares | shares	934
Unvested at beginning of year, Grant Date Fair Value Per Share | $ / shares	$ 124.89
Vested, Grant Date Fair Value Per Share | $ / shares	130.67
Canceled, Grant Date Fair Value Per Share | $ / shares	129.87
Unvested at March 30, 2024, Grant Date Fair Value Per Share | $ / shares	$ 124.82

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Nucor's Restricted Stock Activity under AIP and LTIP (Detail) - Restricted Stock Units and Restricted Stock Awards [Member] shares in Thousands	3 Months Ended
	Mar. 30, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at beginning of year, Shares | shares	210
Granted, Shares | shares	421
Vested, Shares | shares	(350)
Unvested at March 30, 2024, Shares | shares	281
Unvested at beginning of year, Grant Date Fair Value Per Share | $ / shares	$ 145.55
Granted, Grant Date Fair Value Per Share | $ / shares	187.54
Vested, Grant Date Fair Value Per Share | $ / shares	176.74
Unvested at March 30, 2024, Grant Date Fair Value Per Share | $ / shares	$ 169.57

Employee Benefit Plan - Additio

Employee Benefit Plan - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Employee Benefit Plan [Abstract]
Profit Sharing and Retirement Savings Plan, plan expense	$ 123.3	$ 162.2

Interest (Income) Expense - Sch

Interest (Income) Expense - Schedule of Components of Net Interest (Income) Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Interest Revenue (Expense), Net [Abstract]
Interest expense	$ 43,487	$ 62,682
Interest income	(81,274)	(52,499)
Interest (income) expense, net	$ (37,787)	$ 10,183

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Effective income tax rate	21.70%	22.90%
Non-current deferred tax assets included in other assets	$ 42		$ 40.7
Non-current deferred tax liabilities included in deferred credits and other liabilities	$ 1,290		$ 1,330

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Sep. 30, 2023	May 11, 2023
Dividends declared per share	$ 0.54	$ 0.51
Common Stock [Member]
Share repurchase program, available repurchase amount	$ 2,320
Common Stock [Member] | Maximum [Member]
Stock Repurchase Program, Authorized Amount				$ 4,000
Nucor Yamato Steel Company [Member]
Noncontrolling interest, ownership percentage by parent	51%	51%
California Steel Industries Inc [Member]
Noncontrolling interest, ownership percentage by parent	51%	51%
Nucor-JFE Steel Mexico, S. de R.L. de C.V. [Member]
Noncontrolling interest, ownership percentage by parent	51%
Percentage of additional Interest acquired			1%

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Change in Stockholder's Equity (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
BALANCES, beginning of period	$ 22,123,754	$ 19,569,906
Net earnings before noncontrolling interests	958,962	1,231,629
Other comprehensive income (loss)	(15,368)	(27,841)
Stock options exercised	$ 2,688	7,123
Stock options exercised (in shares)	54
Stock option expense	$ 392	475
Issuance of stock under award plans, net of forfeitures	59,964	43,820
Amortization of unearned compensation	2,600	1,764
Treasury stock acquired, and net impact of excise tax	(1,011,239)	(429,813)
Cash dividends declared	(130,799)	(129,383)
Distributions to noncontrolling interests	(265,435)	(337,810)
BALANCES, end of period	21,725,519	19,929,870
Common Stock [Member]
BALANCES, beginning of period	$ 152,061	$ 152,061
BALANCES, shares at beginning of period	380,154	380,154
BALANCES, end of period	$ 152,061	$ 152,061
BALANCES, shares at end of period	380,154	380,154
Additional Paid-in Capital [Member]
BALANCES, beginning of period	$ 2,176,243	$ 2,143,520
Stock options exercised	(1,449)	(1,749)
Stock option expense	392	475
Issuance of stock under award plans, net of forfeitures	33,037	24,760
Amortization of unearned compensation	2,600	1,764
BALANCES, end of period	2,210,823	2,168,770
Retained Earnings [Member]
BALANCES, beginning of period	28,762,045	24,754,873
Net earnings before noncontrolling interests	844,841	1,136,542
Cash dividends declared	(130,799)	(129,383)
BALANCES, end of period	29,476,087	25,762,032
Accumulated Other Comprehensive Income (Loss) [Member]
BALANCES, beginning of period	(162,072)	(137,517)
Other comprehensive income (loss)	(15,368)	(27,841)
BALANCES, end of period	(177,440)	(165,358)
Treasury Stock (at cost) [Member]
BALANCES, beginning of period	$ (9,987,643)	$ (8,498,243)
BALANCES, shares at beginning of period	135,252	126,661
Stock options exercised	$ 4,137	$ 8,872
Stock options exercised (in shares)	(54)	(131)
Issuance of stock under award plans, net of forfeitures	$ 26,927	$ 19,060
Issuance of stock under award plans, net of forfeitures, shares	(344)	(323)
Treasury stock acquired, and net impact of excise tax	$ (1,011,239)	$ (429,813)
Treasury stock acquired and net impact of excise tax (in shares)	5,538	2,723
BALANCES, end of period	$ (10,967,818)	$ (8,900,124)
BALANCES, shares at end of period	140,392	128,930
Total Nucor Stockholders' Equity [Member]
BALANCES, beginning of period	$ 20,940,634	$ 18,414,694
Net earnings before noncontrolling interests	844,841	1,136,542
Other comprehensive income (loss)	(15,368)	(27,841)
Stock options exercised	2,688	7,123
Stock option expense	392	475
Issuance of stock under award plans, net of forfeitures	59,964	43,820
Amortization of unearned compensation	2,600	1,764
Treasury stock acquired, and net impact of excise tax	(1,011,239)	(429,813)
Cash dividends declared	(130,799)	(129,383)
BALANCES, end of period	20,693,713	19,017,381
Noncontrolling Interests [Member]
BALANCES, beginning of period	1,183,120	1,155,212
Net earnings before noncontrolling interests	114,121	95,087
Distributions to noncontrolling interests	(265,435)	(337,810)
BALANCES, end of period	$ 1,031,806	$ 912,489

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 30, 2024	Apr. 01, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning Balance, Gains and (Losses) on Hedging Derivatives		$ (13,900)	$ 26,100
Other comprehensive income (loss) before reclassifications, Gains and (Losses) on Hedging Derivatives		(5,241)	(24,575)
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Gains and (Losses) on Hedging Derivatives	[1]	5,341	175
Net current-period other comprehensive income (loss), Gains and (Losses) on Hedging Derivatives		100	(24,400)
Ending Balance, Gains and (Losses) on Hedging Derivatives		(13,800)	1,700
Beginning Balance, Foreign Currency Gains (Losses)		(159,175)	(180,216)
Other comprehensive income (loss) before reclassifications, Foreign Currency Gains (Losses)		(15,468)	(3,441)
Net current-period other comprehensive income (loss), Foreign Currency Gains (Losses)		(15,468)	(3,441)
Ending Balance, Foreign Currency Gains (Losses)		(174,643)	(183,657)
Beginning Balance, Adjustment to Early Retiree Medical Plan		11,003	16,599
Ending Balance, Adjustment to Early Retiree Medical Plan		11,003	16,599
Beginning Balance		(162,072)	(137,517)
Other comprehensive income (loss) before reclassifications		(20,709)	(28,016)
Amounts reclassified from accumulated other comprehensive income (loss) into earnings	[1]	5,341	175
Net current-period other comprehensive income (loss)		(15,368)	(27,841)
Ending Balance		$ (177,440)	$ (165,358)
[1] Includes $ 5,341 and $ 175 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts in the first quarter of 2024 and 2023 , respectively. The tax impact of those reclassifications was $ 1,800 and $ 100 in the first quarter of 2024 and 2023 , respectively.

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 30, 2024	Apr. 01, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Gains and (Losses) on Hedging Derivatives	[1]	$ 5,341	$ 175
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect		1,800	100
Cost of Products Sold [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Gains and (Losses) on Hedging Derivatives		5,341	175
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect		$ 1,800	$ 100
[1] Includes $ 5,341 and $ 175 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts in the first quarter of 2024 and 2023 , respectively. The tax impact of those reclassifications was $ 1,800 and $ 100 in the first quarter of 2024 and 2023 , respectively.

Segments - Segments (Detail)

Segments - Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 8,137,083	$ 8,709,980
Earnings (losses) before income taxes and noncontrolling interests	1,225,341	1,596,784
Total assets	33,932,525		$ 35,340,499
Operating Segments [Member] | Steel Mills [Member]
Segment Reporting Information [Line Items]
Net sales	5,168,778	4,979,257
Earnings (losses) before income taxes and noncontrolling interests	1,102,251	838,388
Total assets	15,557,704		15,407,266
Operating Segments [Member] | Steel Products [Member]
Segment Reporting Information [Line Items]
Net sales	2,516,868	3,275,997
Earnings (losses) before income taxes and noncontrolling interests	511,559	970,802
Total assets	11,012,416		10,914,870
Operating Segments [Member] | Raw Materials [Member]
Segment Reporting Information [Line Items]
Net sales	451,437	454,726
Earnings (losses) before income taxes and noncontrolling interests	9,581	58,140
Total assets	3,443,812		3,546,759
Intercompany Eliminations [Member] | Steel Mills [Member]
Segment Reporting Information [Line Items]
Net sales	1,250,863	1,163,632
Intercompany Eliminations [Member] | Steel Products [Member]
Segment Reporting Information [Line Items]
Net sales	137,444	100,361
Intercompany Eliminations [Member] | Raw Materials [Member]
Segment Reporting Information [Line Items]
Net sales	3,110,029	3,170,892
Corporate and Eliminations Items [Member]
Segment Reporting Information [Line Items]
Net sales	(4,498,336)	(4,434,885)
Earnings (losses) before income taxes and noncontrolling interests	(398,050)	$ (270,546)
Corporate/eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	$ 3,918,593		$ 5,471,604

Revenue - Schedule of Net Sales

Revenue - Schedule of Net Sales Disaggregates by Major Source (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Revenue from Contract with Customers [Line Items]
Revenues	$ 8,137,083	$ 8,709,980
Sheet [Member]
Revenue from Contract with Customers [Line Items]
Revenues	2,710,337	2,102,694
Bar [Member]
Revenue from Contract with Customers [Line Items]
Revenues	1,334,898	1,598,128
Structural [Member]
Revenue from Contract with Customers [Line Items]
Revenues	611,007	638,307
Plate [Member]
Revenue from Contract with Customers [Line Items]
Revenues	512,536	640,128
Tubular Products [Member]
Revenue from Contract with Customers [Line Items]
Revenues	368,724	438,983
Rebar Fabrication [Member]
Revenue from Contract with Customers [Line Items]
Revenues	412,341	498,117
Joist [Member]
Revenue from Contract with Customers [Line Items]
Revenues	330,601	635,816
Deck [Member]
Revenue from Contract with Customers [Line Items]
Revenues	268,630	485,443
Building Systems [Member]
Revenue from Contract with Customers [Line Items]
Revenues	314,013	281,910
Other Steel Products [Member]
Revenue from Contract with Customers [Line Items]
Revenues	822,559	935,728
Raw Materials [Member]
Revenue from Contract with Customers [Line Items]
Revenues	451,437	454,726
Steel Mills [Member]
Revenue from Contract with Customers [Line Items]
Revenues	5,168,778	4,979,257
Steel Mills [Member] | Sheet [Member]
Revenue from Contract with Customers [Line Items]
Revenues	2,710,337	2,102,694
Steel Mills [Member] | Bar [Member]
Revenue from Contract with Customers [Line Items]
Revenues	1,334,898	1,598,128
Steel Mills [Member] | Structural [Member]
Revenue from Contract with Customers [Line Items]
Revenues	611,007	638,307
Steel Mills [Member] | Plate [Member]
Revenue from Contract with Customers [Line Items]
Revenues	512,536	640,128
Steel Products [Member]
Revenue from Contract with Customers [Line Items]
Revenues	2,516,868	3,275,997
Steel Products [Member] | Tubular Products [Member]
Revenue from Contract with Customers [Line Items]
Revenues	368,724	438,983
Steel Products [Member] | Rebar Fabrication [Member]
Revenue from Contract with Customers [Line Items]
Revenues	412,341	498,117
Steel Products [Member] | Joist [Member]
Revenue from Contract with Customers [Line Items]
Revenues	330,601	635,816
Steel Products [Member] | Deck [Member]
Revenue from Contract with Customers [Line Items]
Revenues	268,630	485,443
Steel Products [Member] | Building Systems [Member]
Revenue from Contract with Customers [Line Items]
Revenues	314,013	281,910
Steel Products [Member] | Other Steel Products [Member]
Revenue from Contract with Customers [Line Items]
Revenues	822,559	935,728
Raw Materials [Member]
Revenue from Contract with Customers [Line Items]
Revenues	451,437	454,726
Raw Materials [Member] | Raw Materials [Member]
Revenue from Contract with Customers [Line Items]
Revenues	$ 451,437	$ 454,726

Revenue - Additional Informatio

Revenue - Additional Information (Detail) - USD ($) $ in Millions	Mar. 30, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Contract liabilities	$ 346.3	$ 313.8

Earnings Per Share - Computatio

Earnings Per Share - Computations of Basic and Diluted Net Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Earnings Per Share [Abstract]
Net Income (Loss)	$ 844,841	$ 1,136,542
Earnings allocated to participating securities, Basic	(3,221)	(3,413)
Net earnings available to common stockholders, Basic	$ 841,620	$ 1,133,129
Basic average shares outstanding	243,098	253,608
Basic net earnings per share	$ 3.46	$ 4.47
Diluted net earnings	$ 844,841	$ 1,136,542
Earnings allocated to participating securities, Diluted	(3,213)	(3,392)
Net earnings available to common stockholders, Diluted	$ 841,628	$ 1,133,150
Diluted average shares outstanding	243,497	254,397
Dilutive effect of stock options and other	399	789
Diluted net earnings per share	$ 3.46	$ 4.45

Earnings Per Share - Anti-dilut

Earnings Per Share - Anti-dilutive Stock Options (Detail) - shares	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Earnings Per Share [Abstract]
Weighted-average shares	0	0

Debt and Other Financing Arrang

Debt and Other Financing Arrangements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023
Debt Instrument [Line Items]
Redemption amount	$ 2,500	$ 2,500

Acquisitions - Additional Infor

Acquisitions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Goodwill	$ 3,956,062	$ 3,968,847
Acquisitions net of cash acquired	$ (991)

Acquisitions - Summary of Fair

Acquisitions - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Mar. 30, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Goodwill	$ 3,956,062	$ 3,968,847