10-K

K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2023

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ________ to ________

Commission File Number: 1-4119

NUCOR CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	13-1860817
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1915 Rexford Road, Charlotte, North Carolina	28211
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (704) 366-7000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.40 per share	NUE	New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒ No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐ No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C.7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. ☐

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No ☒

The aggregate market value of the registrant’s common stock held by non-affiliates was approximately $40.56 billion based upon the closing sales price of the registrant’s common stock on the last business day of the registrant’s most recently completed second fiscal quarter, July 1, 2023.

The number of shares of the registrant’s common stock outstanding as of February 21, 2024 was 240,745,037.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant's annual report to stockholders for the year ended December 31, 2023, which will be posted to the registrant's website and furnished to the SEC subsequent to the date hereof are incorporated by reference into Part II of this report to the extent described herein. Portions of the registrant’s definitive proxy statement to be filed with the SEC in connection with the registrant’s 2024 Annual Meeting of Stockholders are incorporated by reference into Part III of this report to the extent described herein.

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Nucor Corporation

Annual Report on Form 10-K

For the Fiscal Year Ended December 31, 2023

Table of Contents

PART I
	Item 1.	Business	1
	Item 1A.	Risk Factors	20
	Item 1B.	Unresolved Staff Comments	25
	Item 1C.	Cybersecurity	25
	Item 2.	Properties	28
	Item 3.	Legal Proceedings	29
	Item 4.	Mine Safety Disclosures	29
	Information About Our Executive Officers		29
PART II
	Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	32
	Item 6.	[Reserved]	32
	Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	33
	Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	48
	Item 8.	Financial Statements and Supplementary Data	49
	Item 9.	Changes in and Disagreements With Accountants on Accounting and Financial Disclosure	90
	Item 9A.	Controls and Procedures	90
	Item 9B.	Other Information	90
	Item 9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	90
PART III
	Item 10.	Directors, Executive Officers and Corporate Governance	91
	Item 11.	Executive Compensation	91
	Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	91
	Item 13.	Certain Relationships and Related Transactions, and Director Independence	91
	Item 14.	Principal Accountant Fees and Services	91
PART IV
	Item 15.	Exhibits and Financial Statement Schedules	92
	Item 16.	Form 10-K Summary	96
	SIGNATURES		97

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PART I

Item 1. Business.

Overview

Nucor Corporation, a Delaware corporation incorporated in 1958, and its affiliates (“Nucor,” the “Company,” “we,” “us” or “our”) manufacture steel and steel products. The Company also produces and procures ferrous and non-ferrous materials primarily for use in its steel manufacturing business. Most of the Company’s operating facilities and customers are located in North America. The Company’s operations include international trading and sales companies that buy and sell steel and steel products manufactured by the Company and others.

Nucor is North America’s largest recycler, using scrap steel as the primary raw material in producing steel and steel products. In 2023, we recycled approximately 18.4 million gross tons of scrap steel.

Segments, Principal Products Produced, and Markets and Marketing

Nucor reports its results in three segments: steel mills, steel products and raw materials. The steel mills segment is Nucor’s largest segment, representing 58% of the Company’s sales to external customers in the year ended December 31, 2023.

We market products from the steel mills and steel products segments mainly through in-house sales forces. We also utilize our internal distribution and trading companies to market our products abroad. The markets for these products are largely tied to end-use markets such as nonresidential construction, durable goods and capital spending that are affected by changes in general economic conditions.

We are a leading domestic provider for most of the products we supply, and, in many cases (e.g., structural steel, merchant bar steel, steel joist and deck, pre-engineered metal buildings, steel piling, cold finish bar steel, steel electrical conduit pipe and insulated metal panels), we are the leading supplier.

In recent years we have embarked on a strategy to advance Nucor’s capabilities and further its value creation, as summarized in our Mission Statement: Grow the Core, Expand Beyond and Live Our Culture.

We have examined and prioritized growth opportunities across our core steelmaking, steel products and raw materials operations, and we have identified and executed on several acquisitions and investments to expand the products and services we offer beyond our traditional capabilities. We believe that the Expand Beyond growth opportunities we are pursuing leverage our core competency as a highly efficient, industrial manufacturer working primarily with steel and steel products, while positioning us to generate attractive profit margins and returns on our invested capital selling products into growing end-use markets.

Steel mills segment

In the steel mills segment, Nucor produces sheet steel (hot-rolled, cold-rolled and galvanized), plate steel, structural steel (wide-flange beams, beam blanks, H-piling and sheet piling) and bar steel (blooms, billets, concrete reinforcing bar, merchant bar and engineered special bar quality (“SBQ”)). Nucor manufactures steel principally from scrap steel and scrap steel substitutes using electric arc furnaces (“EAFs”) along with continuous casting and automated rolling mills. The steel mills segment also includes Nucor’s equity method investment in NuMit LLC (“NuMit”) (see “Steel joint ventures”- below), as well as international trading and distribution companies that buy and sell steel manufactured by the Company and other steel producers.

The steel mills segment sells its products primarily to steel service centers, fabricators and manufacturers located throughout the United States, Canada and Mexico. The steel mills segment sold

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approximately 18,552,000 tons to outside customers in 2023. In 2023, 80% of the shipments made by our steel mills segment were to external customers. The remaining 20% of the steel mills segment’s shipments went to our steel products segment.

•Bar mills - Nucor has 15 bar mills located across the United States that manufacture a broad range of products, including concrete reinforcing bars, hot-rolled bars, rounds, light shapes, structural angles, channels, wire rod and highway products in carbon and alloy steels. Four of the bar mills have a significant focus on manufacturing SBQ and wire rod products.

Steel produced by our bar mills has a wide usage serving end markets, including the agricultural, automotive, construction, energy, furniture, machinery, metal building, railroad, recreational equipment, shipbuilding, heavy truck and trailer market segments. Considering Nucor’s production capabilities and the mix of bar products generally produced and marketed, the capacity of the bar mills is estimated at approximately 9,560,000 tons per year.

Reinforcing and merchant bar steel are sold in standard sizes and grades, which allows us to maintain inventory levels of these products to meet our customers’ expected orders. Our SBQ products are hot-rolled to exacting specifications primarily servicing the automotive, energy, agricultural, heavy equipment and transportation sectors.

In April 2022, Nucor announced that it will build a new rebar micro mill, with spooling capabilities, in Lexington, North Carolina. The new micro mill is currently under construction.

In February 2024, Nucor announced that the Board of Directors approved $860 million to construct a rebar micro mill in the Pacific Northwest. Nucor is evaluating potential locations, and the project is expected to take two years to construct, subject to regulatory approvals.

•Sheet mills - Nucor operates six sheet mills that produce flat-rolled steel for automotive, appliance, construction, pipe and tube and many other industrial and consumer applications. Included in our six sheet mills is California Steel Industries, Inc., in which Nucor has a 51% controlling ownership position. Considering Nucor’s production capabilities and the mix of flat-rolled products generally produced and marketed, the capacity of the sheet mills is estimated at approximately 14,600,000 tons per year. All of our sheet mills are equipped with galvanizing lines and four of them are equipped with cold rolling mills for further processing of hot-rolled sheet steel.

Nucor produces hot-rolled, cold-rolled and galvanized sheet steel to customers’ specifications. Contract sales within the steel mills segment are most notable in our sheet operations, as it is common for contract sales to account for the majority of sheet sales in a given year. We estimate that greater than 80% of our sheet steel sales in 2023 were to contract customers. These sheet sales contracts are noncancellable agreements that generally incorporate monthly or quarterly price adjustments reflecting changes in the current market-based indices and/or raw material cost, and typically have terms ranging from six to 12 months. The balance of our sheet steel sales were made in the spot market at prevailing prices at the time of sale. The number of tons sold to contract customers at any given time depends on a variety of factors, including our consideration of current and future market conditions, our strategy to appropriately balance spot and contract tons in a manner to meet our customers’ requirements while considering the expected profitability, our desire to sustain a diversified customer base, and our end-use customers’ perceptions about future market conditions.

Nucor owns a 51% controlling economic and voting interest in Nucor-JFE Steel Mexico, S. de R.L. de C.V. ("NJSM"). NJSM is a joint venture with JFE Steel Corporation (“JFE”) of Japan that operates a galvanized sheet steel plant in central Mexico with an annual capacity of approximately 400,000 tons, that is expected to supply the country’s automotive market.

In January 2022, Nucor announced it had selected Mason County, West Virginia as the site for its new 3-million-ton state-of-the-art sheet mill. When operational, the new mill will be equipped to produce 84-inch sheet products, and among other features, will include a 76-inch tandem cold mill and two galvanizing lines capable of producing advanced high-end automotive and construction grades.

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•Structural mills - Nucor operates two structural mills that produce wide-flange steel beams, pilings and heavy structural steel products for fabricators, construction companies, manufacturers and steel service centers. Nucor owns a 51% interest in Nucor-Yamato Steel Company (Limited Partnership) (“Nucor-Yamato”) located in Blytheville, Arkansas. Nucor-Yamato is the only North American producer of high-strength, low-alloy beams. Common applications for the high-strength, low-alloy beams include gravity columns for high-rise buildings, long-span trusses for stadiums and convention centers, and for use in all projects where seismic design is a critical factor. The benefits of high-strength, low-alloy beams are increasingly recognized by Nucor’s customers in the construction sector. These include savings in terms of construction time, weight, space, and overall environmental impact. Nucor sells its high-strength, low-alloy beams under the trade name AEOSTM.

Nucor also owns a steel beam mill in Berkeley County, South Carolina. Considering Nucor’s production capabilities and the mix of structural products generally produced and marketed, the capacity of the two structural mills is estimated at approximately 3,250,000 tons per year. .

Structural steel products come in standard sizes and grades, which allows us to maintain inventory levels of these products to meet our customers’ expected orders.

•Plate mills - Nucor operates three plate mills that produce plate for manufacturers of barges, bridges, heavy equipment, rail cars, refinery tanks, ships, wind towers and other items. Our products are further used in the pipe and tube, pressure vessel, transportation and construction industries. Considering Nucor’s production capabilities and the mix of plate products generally produced and marketed, the capacity of the plate mills is estimated at approximately 4,000,000 tons per year.

Plate steel products come in standard sizes and grades, which allows us to maintain inventory levels of these products to meet our customers’ expected orders.

•Steel joint venture - Nucor owns a 50% economic and voting interest in NuMit, a company that owns 100% of the equity interest in Steel Technologies LLC (“Steel Technologies”), an operator of 30 strategically located sheet processing facilities in the United States, Canada and Mexico. Steel Technologies transforms flat-rolled steel into products that meet exacting specifications for customers in a wide range of industries, including the automotive, agricultural and consumer goods markets.

Steel products segment

In the steel products segment, Nucor produces steel joists and joist girders, steel deck, galvanized torque tubes used in solar arrays, hollow structural section (“HSS”) steel tubing, electrical conduit, fabricated concrete reinforcing steel, cold finished steel, steel fasteners, steel grating and expanded metal, wire and wire mesh, metal building systems, insulated metal panels, steel racking, overhead doors, and utility towers and structures for communications and energy transmission. The steel products segment also includes our piling distributor.

Our capabilities in insulated metal panels, steel racking, overhead doors and towers and structures have all been acquired over the past several years as part of our Expand Beyond strategy, which we believe can enhance our profit margins, return on invested capital and free cash flow generation and, over time, accelerate our overall growth while reducing the volatility of our earnings. A value driver in each of these businesses is to readily leverage our core competencies as a highly efficient manufacturer of steel products, as well as our inclusive, safety-focused, performance-oriented culture.

Except for our overhead doors business, which at present is focused primarily on the garage door repair and replacement market, our steel products businesses primarily serve the nonresidential construction and infrastructure markets.

•Vulcraft/Verco – The Vulcraft/Verco group is the nation’s leading producer of open-web steel joists, joist girders and steel decking, which are used primarily for nonresidential building

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construction. Steel joists and joist girders are produced and marketed throughout the United States by seven domestic Vulcraft facilities. The Vulcraft/Verco group’s steel decking is produced and marketed throughout the United States by nine domestic plants. Six of these plants are adjacent to Vulcraft joist facilities. The Vulcraft/Verco group also has two plants in Canada—one in Eastern Canada and one in Western Canada—that produce both joist and deck. The annual joist production capacity is approximately 745,000 tons and the annual deck production capacity is approximately 560,000 tons.

Sales of steel joists, joist girders and steel decking are dependent on the nonresidential building construction market. The majority of steel joists, joist girders and steel decking are used extensively as part of the roof and floor structural support systems in warehouses, data centers, manufacturing buildings, retail stores, shopping centers, schools, hospitals, and, to a lesser extent, in multi-story buildings and apartments. We make these products to our customers’ specifications and typically deliver them directly to a construction site according to a prearranged schedule and sequence. The majority of these contracts are firm, fixed-price contracts that are, in most cases, competitively bid against other suppliers.

Our Vulcraft/Verco group also manufactures and fabricates steel bar grating products at four of its facilities and serves the new construction and maintenance-related markets. The annual production capacity for our grating business is approximately 49,000 tons.

•Tubular products – The Nucor Tubular Products (“NTP”) group has eight tubular facilities that are located in close proximity to Nucor’s sheet mills. The NTP group produces HSS steel tubing, mechanical steel tubing, galvanized solar torque tube, piling, sprinkler pipe, heat-treated tubing and electrical conduit. HSS steel tubing, mechanical steel tubing and sprinkler pipe are used in structural and mechanical applications, including nonresidential construction, infrastructure, agricultural, automotive and construction equipment end-use markets. Heat-treated tubing and electrical conduit are primarily used to protect and route electrical wiring in various nonresidential structures such as hospitals, schools, office buildings, hotels, stadiums and shopping malls. Solar torque tube is an essential component for ground-mount solar systems.

•Rebar fabrication – Nucor Rebar Fabrication fabricates, installs and distributes rebar for a wide variety of construction work classified as infrastructure (e.g., highways, bridges, reservoirs, utilities and airports) and various building projects, including manufacturing facilities, warehouses, data centers, hospitals, schools, stadiums, commercial office buildings and multi-tenant residential construction. We sell and install fabricated reinforcing products primarily on a construction contract bid basis.

Reinforcing products are essential to concrete construction. They supply tensile strength, as well as additional compressive strength, and protect concrete from cracking. In many markets, Nucor Rebar Fabrication sells reinforcing products on an installed basis (i.e., Nucor Rebar Fabrication fabricates the reinforcing products for a specific application and performs the installation). Nucor Rebar Fabrication operates nearly 70 fabrication facilities across the United States and Canada, with each facility serving a local market. Total annual rebar fabrication capacity is approximately 1,736,000 tons.

•Piling products - Skyline Steel LLC and its subsidiaries (“Skyline”) are primarily steel foundation distributors serving the North American market. Skyline distributes products to service marine construction, bridge and highway construction, heavy civil construction, flood protection, underground commercial parking and environmental containment projects in the infrastructure and construction industries. Skyline also manufactures a complete line of geostructural foundation solutions, including threaded bar, micropile, strand anchors and hollow bar. It also processes and fabricates spiral weld pipe piling, rolled and welded pipe piling, and cold-formed sheet piling.

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•Cold finish - Nucor Cold Finish (“NCF”) is the largest and most diversified producer of cold finished bar products for a wide range of industrial markets in North America, with assets in Canada, Mexico and throughout the United States. The total capacity of the Nucor cold finished bar and wire facilities is approximately 1,069,000 tons per year.

Nucor’s cold finished facilities produce cold finished bars for demanding applications. NCF obtains most of its steel from the Nucor bar mills, ensuring consistent quality and supply through all market conditions. These facilities produce cold-drawn, turned, ground and polished steel bars that are used extensively for shafting and other precision machined applications. NCF produces rounds, hexagons, flats and squares in carbon, alloy and leaded steels. These bars are purchased by the appliance, automotive, construction equipment, electric motor, farm machinery and fluid power industries, as well as by service centers. NCF bars are used in tens of thousands of products. A few examples include anchor bolts, hydraulic cylinders and shafting for air conditioner compressors, ceiling fan motors, garage door openers, electric motors and lawn mowers.

Nucor owns a fully integrated precision castings company, Corporacion POK, S.A. de C.V. (“POK”), with a facility in Guadalajara, Mexico. POK produces complex castings and precision machined products used by the oil and gas, mining and sugar processing industries. POK produces a wide array of precision castings using steel, bronze, iron and specialty alloys. POK complements NCF’s businesses and Nucor’s cold finish facility in Monterrey, Mexico.

•Steel mesh and fasteners – Nucor manufactures wire products and industrial fasteners.

Nucor produces mesh at Nucor Steel Connecticut, Inc. and Nucor Wire Products Utah. Nucor also produces mesh in Canada at the Harris Steel Group, Inc. ("Harris") operations of Laurel Steel.

Nucor Fastener’s bolt-making facility in Indiana produces carbon and alloy steel hex head cap screws, hex bolts, structural bolts, nuts and washers, finished hex nuts and custom-engineered fasteners. Nucor fasteners are used in a broad range of markets, including automotive, machine tool, farm implement, construction and military applications.

•Buildings group – The Nucor Buildings group is the nation’s leading supplier of pre-engineered metal buildings. Nucor produces metal buildings and components throughout the United States under the following brands: Nucor Building Systems, American Buildings Company and Kirby Building Systems.

The sizes of the buildings that can be produced range from less than 1,000 square feet to more than 1,000,000 square feet. Complete metal building packages can be customized and combined with other materials such as glass, wood and masonry to produce cost-effective, energy efficient, aesthetically pleasing buildings designed to the customers’ special requirements. The buildings are sold primarily through independent builder distribution networks in order to provide fast-track, customized solutions for building owners. The primary markets served are commercial, industrial and institutional buildings, including distribution centers, data centers, automobile dealerships, retail centers, schools and manufacturing facilities.

•Insulated metal panels (“IMP”) – We believe the Nucor Insulated Panels Group, which includes industry leading brands, CENTRIA and Metl-Span, broadens the value-added solutions that the Nucor Buildings group can provide to targeted end markets such as warehousing, distribution and data centers. We expect these end-use markets to continue to grow in the coming years. IMPs facilitate cost-effective climate control in the built environment and reduce energy usage and overall operations related greenhouse gas (“GHG”) emissions for owners and lessees.

•Warehouse Systems – Nucor Warehouse Systems (“NWS”) produces and installs custom designed steel racking systems for a variety of applications, including data centers and warehouses.

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•Overhead doors – In June 2022, Nucor acquired C.H.I. Overhead Doors, LLC (“CHI”), a leading manufacturer of overhead doors for residential and commercial markets in the United States and Canada. We believe that by leveraging Nucor’s existing sales channels into the broader nonresidential construction market we can facilitate CHI’s continuing growth. CHI has two manufacturing locations.

•Towers & Structures – In August 2022, Nucor acquired Summit Utility Structures LLC and a related company, Sovereign Steel Manufacturing LLC. These companies form Nucor Towers & Structures (“NTS”). NTS produces metal poles and other steel structures for utility infrastructure and highway signage.

In 2023, Nucor announced it will build two new manufacturing locations to expand NTS adjacent to Nucor's existing steel mills in Decatur, Alabama and Crawfordsville, Indiana.

Raw materials segment

In the raw materials segment, Nucor produces DRI and, through our DJJ subsidiary, brokers ferrous and nonferrous metals, pig iron, HBI and DRI; supplies ferro-alloys; and processes ferrous and nonferrous scrap metal. The raw materials segment also includes our natural gas production operations and our industrial gas business, Universal Industrial Gases. Nucor’s raw materials investments are focused on creating an advantage for its steelmaking operations, through a global information network and a multi-pronged and flexible approach to raw materials supply.

•Scrap recycling and brokerage operations - DJJ operates six regional scrap recycling companies across the United States that together have shredders capable of processing approximately 5,878,000 tons of ferrous scrap annually. DJJ’s scrap recycling operations use expertise and technology to maximize metal recovery and minimize waste.

DJJ is the leading broker of ferrous scrap in North America and is a global trader of scrap metal, pig iron and other metallics. In addition to sourcing steel scrap for Nucor’s mills, DJJ is a global trader of ferro-alloys and nonferrous metals. DJJ’s logistics team owns and operates one of the largest independent fleets of railcars in the United States dedicated to the movement of scrap and steel and also offers railcar leasing and railcar fleet management services. These activities have value to Nucor as the leading and most diversified North American steel producer.

Our primary external customers for ferrous scrap are EAF steel mills and foundries that use ferrous scrap as a raw material in their manufacturing process. External customers purchasing nonferrous scrap metal include aluminum can producers, secondary aluminum smelters, steel mills, and other processors and consumers of various nonferrous metals. We market scrap metal products and related services to our external customers through in-house sales forces. In 2023, approximately 8% of the ferrous and nonferrous metals and scrap substitute tons we brokered and processed were sold to external customers. We consumed the balance in our steel mills.

•Direct reduced iron operations - DRI is a substitute material for high-quality grades of scrap and pig iron. Nucor operates two DRI plants which supplied approximately 3,350,000 metric tons of material with world-class metallization rates and carbon content to our steel mills in 2023. Nucor’s wholly owned subsidiary, Nu-Iron Unlimited, is located in Trinidad and benefits from a low-cost supply of natural gas and favorable logistics for inbound iron ore and shipment of DRI to the United States. Nucor’s second DRI plant in Louisiana also benefits from favorable logistics and proximity to its steel mill customers.

Nucor’s DRI production and brokering capabilities provide our steel mills flexibility to quickly adjust their metallic input mix to changing market conditions, enabling them to maintain competitiveness in the often-volatile ferrous scrap market. With the potential for high-quality scrap to become scarcer, coupled with the risk of third-party supplier disruptions, Nucor’s DRI facilities provide a greater degree of certainty over metallics supply to its steel mills.

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•Natural gas production programs - Nucor owns operating wells and leasehold interests in natural gas properties in the South Piceance Basin in the Western Slope of Colorado.

Nucor’s access to a long-term, low-cost supply of natural gas is a component in the execution of Nucor’s raw material strategy. Natural gas produced by Nucor’s production operations is sold to third parties to partially offset our exposure to changes in the price of natural gas consumed by our DRI plant in Louisiana and our steel mills in the United States.

•Process Gases – Universal Industrial Gases ("UIG") provides the capability to build and operate our own air separation units to serve our steel mills, providing us with an alternative to long term service contracts with outside providers. Where economies of scale and regional market conditions warrant, we can also sell excess output from these plants on a merchant basis. As of December 31, 2023, Nucor had six industrial gas plants operating, and eight others at various stages of commissioning, construction, or planning.

Customers and Markets

We have a diverse customer base and are not dependent on any single customer. Our largest single customer in 2023 represented approximately 5% of sales and consistently pays within terms. Our steel mills use a significant portion of the products of the raw materials segment while our steel products segment uses approximately 20% of our steel mills' output.

We believe that nonresidential construction is the largest end-use market that we serve. Products from our steel mills and steel products segments are used in a variety of nonresidential construction applications (e.g., commercial, industrial and infrastructure).

In recent years, we have come to see our EAF-based steelmaking method, with its lower GHG intensity when compared with blast furnace technology that is reliant on mined or extracted virgin iron ore and coking coal, as a competitive advantage for reasons beyond its flexible, highly variable cost base. Customers are expressing greater concern for the GHG emissions in their supply chains and are prioritizing sourcing their steel requirements from EAF-based steelmakers for incorporation into their projects and products.

We have developed branded product lines to leverage this, and other advantages conferred by our specialized capabilities:

•Our AEOSTM line of high-strength, low-alloy steel beams is one such example. AEOSTM’s benefits are increasingly recognized by Nucor’s customers in the construction sector. These include savings in terms of construction time, weight, space and overall environmental impact.

•Our ECONIQTM line of net zero carbon steel is another example. We launched ECONIQTM during 2021 and have found interest from customers in both the automotive and construction end-use markets. These are the two largest end-use markets for steel in the United States.

•Our ElcyonTM line of sustainable heavy gauge steel plate product will be made specifically for America’s wind energy producers. We launched ElcyonTM in January 2023 and plan to manufacture this product at our new plate mill in Brandenburg, Kentucky.

We have also invested in people and processes to organize more of our commercial activities around large customers and end-use markets (e.g., automotive, construction, wind energy and solar energy). We have developed dedicated teams tasked with developing relationships and educating decision makers in these sectors.

General Development of Our Business in Recent Years

Consistent with our strategy to Grow the Core, Expand Beyond and Live our Culture, Nucor has invested significant capital in recent years to expand our product portfolio to include more value-added

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steel mill products and capabilities, improve our cost structure, enhance our operational flexibility and increase our exposure to markets with attractive growth prospects, such as data centers and renewable energy. These investments totaled approximately $10.92 billion over the last three years, with approximately 54% going to capital expenditures and the remainder going to acquisitions. We believe that these investments will help us deliver higher returns on invested capital and long-term growth. Further, we believe shifting our product mix to a greater proportion of value-added products will make our overall business less volatile.

In our steel mills segment, Nucor has initiated several new capital projects and an acquisition of a majority ownership position of a steel mill to support our expansion of value-added product offerings and cost-reduction strategies.

•Nucor has completed construction of its approximately $650 million investment to modernize and expand the production capability at its Gallatin flat-rolled sheet mill located in Ghent, Kentucky. The project increased the production capability of the mill from approximately 1,600,000 tons to approximately 2,800,000 tons annually. This enables the Gallatin mill to cast new, thicker slabs and wider coils, expanding our product capabilities so that we can serve new markets, such as API (American Petroleum Institute) grade pipelines and new opportunities in the heavy equipment sector.

•Nucor has completed construction of its approximately $1.70 billion state-of-the-art plate mill in Brandenburg, Kentucky on the Ohio River. The new plate mill rolled its first plate in December 2022 and completed final commissioning and began shipping tons to customers in the first quarter of 2023. Nucor Steel Brandenburg is still in its ramp-up phase and we estimate that the mill will ship approximately 500,000 tons in 2024. We expect the mill to be capable of producing approximately 1,200,000 tons per year of steel plate products. With the capability to manufacture nearly all the different types of plate products consumed in the United States, we believe this mill will position Nucor as the supplier of choice in the domestic plate market. We expect domestic demand for steel plate to grow in the coming years as wind farms are permitted and developed with increasing frequency. Steel plate is essential to constructing onshore and offshore wind towers, as is steel rebar.

•In January 2022, Nucor announced that its new state-of-the-art sheet mill will be located in Mason County, West Virginia. The project is estimated at a net cost of $3.1 billion, which is net of $275 million in cash proceeds received from the State of West Virginia for costs related to the site location. Construction of the new sheet mill began in the third quarter of 2023 after receiving all the necessary permits, and is expected to take two to three years to complete.

Nucor Steel West Virginia (“NSWV”) is expected to have an annual production capacity of approximately 3,000,000 tons. The new mill will be equipped to produce 84-inch sheet products, and among other features, will include a 76-inch tandem cold mill and two galvanizing lines. Galvanizing capabilities will include an advanced high-end automotive line with full inspection capabilities as well as a construction-grade line. In addition to its advanced capabilities and strategic location, the new greenfield mill’s product mix is anticipated to have a significantly lower GHG intensity than blast furnace based competitors who have historically supplied the region.

•In February 2022, Nucor completed its acquisition of a majority ownership position in California Steel Industries, Inc. (“CSI”) by purchasing a 50% equity ownership interest from a subsidiary of Vale S.A. (Vale) for a cash purchase price of $400 million, adjusted for net debt and working capital at closing, as well as a 1% equity ownership stake from JFE. CSI is a flat-rolled steel converter based in Fontana, California.

Our acquisition of CSI expanded the reach of Nucor’s sheet mill group to the west coast of the United States and increased our exposure to more value-added sheet steel. CSI’s product capabilities include hot rolled, pickled and oiled, cold rolled and galvanized sheet steels, as well as electric resistance welded pipe. Its annual capacity is approximately 2,000,000 tons.

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•In April 2022, Nucor announced that it will build its new rebar micro mill, with spooling capabilities, in Lexington, North Carolina. This will be Nucor's third rebar micro mill, joining its existing micro mills in Missouri and Florida. We expect this $350 million investment to have an annual capacity of approximately 430,000 tons and we expect it to be in operation in 2024.

These mills are referred to as micro mills because they have a smaller operational footprint than our traditional rebar mills, as well as less productive capacity – typically about 400,000 tons per year. This makes them suitable for regional markets and enables us to serve these markets with a logistics cost advantage relative to competitors operating from further away. Micro mills also have a lower environmental footprint due to their smaller size and the fact that their plant design does not typically include a natural gas fired reheat furnace that is common in many steel mills.

Nucor has made strategic acquisitions in the steel products segment over the last three years. These were largely to further the Expand Beyond component of our strategy.

•In August 2021, Nucor acquired the assets of the IMP business of Cornerstone for a cash purchase price of approximately $1.0 billion. The acquired IMP business is comprised of two industry leading brands, CENTRIA and Metl-Span. The brands are now part of the Nucor Insulated Panel group, which also includes the Company's initial IMP business, TrueCore.

We believe this acquisition has broadened the value-added solutions that the Nucor Buildings group provides to targeted end markets such as warehousing, distribution and data centers. We expect these end-use markets to continue to grow in the coming years and that the use of IMP products within them will also increase. IMPs facilitate cost-effective climate control in the built environment and reduce energy usage and overall operations-related GHG emissions for owners and lessees.

•In August 2021, Nucor acquired Hannibal, now known as Nucor Warehouse Systems, for $370 million. Hannibal was a leading national provider of racking solutions to warehouses and serves the e-commerce, industrial, food storage and retail segments. Hannibal has manufacturing facilities in Los Angeles and Houston, as well as three distribution centers. It utilizes sheet and bar steel, as well as steel decking, wire deck and fasteners to produce its racking solutions, providing potential supply chain efficiencies with other Nucor businesses. In addition to manufacturing racking solutions, Hannibal works closely with customers during the construction and design phases of a warehouse build-out by offering turn-key services such as installation, procurement and facility integration. Hannibal also provides retrofit services to support customers’ efforts to modernize and/or repurpose existing facilities.

In April 2022, Nucor expanded its steel racking capabilities by acquiring Elite Storage Solutions for $75 million. This acquisition combined with Nucor’s initial steel racking business, Hannibal, form the NWS group.

•In June 2022, Nucor completed the largest acquisition in its history with the purchase of CHI for approximately $3 billion. CHI is a leading manufacturer of overhead doors for residential and commercial markets in the United States and Canada. Commercial overhead doors are used in warehousing and retail, areas that Nucor has focused its attention on recently through other value-added products such as insulated metal panels and steel racking solutions. It is expected that the CHI acquisition also will benefit from supply chain efficiencies due to Nucor’s paint line investments at its Hickman, Arkansas and Crawfordsville, Indiana sheet mills.

CHI has approximately 800 teammates across two manufacturing plants in Arthur, Illinois, and Terre Haute, Indiana, and regional warehouses located in California, Colorado, New Hampshire and New Jersey. With a highly diversified national customer network of professional garage door dealers, CHI is able to maintain minimal inventory levels and realize industry-leading fulfillment times, while providing direct delivery to customers.

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Capital Allocation Strategy

Our highest capital allocation priority is to invest in our business for profitable long-term growth through our multi-pronged strategy of optimizing existing operations, greenfield expansions and acquisitions.

Our second priority is to return capital to our stockholders through cash dividends and share repurchases. Nucor has paid $1.53 billion in dividends to its stockholders during the past three years. That dividend payout represents 7% of cash flows from operations during that three-year period. The Company repurchased $1.55 billion of its common stock in 2023 ($2.76 billion in 2022 and $3.28 billion in 2021).

We intend to return at least 40% of our net income to stockholders over time via a combination of both cash dividends and share repurchases. Over the past three years, we have returned approximately 48% of our net income in this manner. At December 31, 2023, the Company had approximately $3.32 billion available for share repurchases under the currently authorized share repurchase program.

We intend to execute on our capital allocation strategy while maintaining a strong balance sheet, with relatively low financial leverage, as measured in terms of debt to total capital, as well as ample liquidity. At year-end 2023, our debt to total capital was approximately 24% and we had cash and cash equivalents, short-term investments and restricted cash and cash equivalents on hand of $7.13 billion. At the end of 2023, Nucor had the strongest credit ratings in the North American steel sector (A-/A-/Baa1) with stable outlooks at Standard & Poor’s, Fitch Ratings and Moody’s.

Competition

We compete in a variety of steel and metal markets, including markets for finished steel products, unfinished steel products and raw materials. These markets are highly competitive with many domestic and foreign firms participating, and, as a result of this highly competitive environment, we find that we primarily compete on price and service.

In our steel mills segment, our EAF steel mills face many different forms of competition, including domestic integrated steel producers (who use iron ore converted into liquid form in a blast furnace as their basic raw material instead of scrap steel), other domestic EAF steel mills, steel imports and alternative materials. Large domestic integrated steel producers have the ability to manufacture a variety of products but face significantly higher energy costs and are often burdened with higher capital and fixed operating costs. EAF-based steel producers, such as Nucor, are sensitive to increases in scrap prices but tend to have lower capital and fixed operating costs compared with large integrated steel producers. EAF-based steel producers also typically emit fewer GHGs per ton of steel produced than integrated steel producers.

Global steel production overcapacity continues to be an ongoing risk to Nucor and the entire steel industry. The Organisation for Economic Cooperation and Development ( the “OECD”) estimated that global steel production overcapacity would grow from approximately 556.1 million metric tons in 2022 to approximately 610.8 million tons in 2023, with additional global capacity coming online and economic uncertainty in some parts of the world, particularly China, impacting steel demand. An OECD report states that in Asia, 75 percent of the new capacity coming online between 2024 and 2026 will utilize blast furnace technology. Other regions of the world are not expected to see new blast furnace projects in those years. Adding additional blast furnace capacity will increase carbon emissions. See 'Item 1A. Risk Factors- Industry Specific Risk Factors" for further discussion of overcapacity risks.

China continues to be the largest steel producing country. In 2023, despite much slower economic growth and a continuing downturn in its property market, China still produced more than one billion tons of steel, near its all-time record, accounting for approximately 54% of all steel produced globally.

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Circumvention of trade duties also continues to pose a risk. Besides producing over a billion tons of steel in its own country, China is investing heavily in steel production in other countries which is one way it tries to avoid being subject to trade duties on exports to the U.S. market. According to the OECD, Chinese steel companies will account for 65% of cross-border investments or joint venture investments in 2023 or later and will account for more than 80% of the investment in new steelmaking capacity in southeast Asian countries.

The Section 232 steel tariffs enacted in 2018 and successful trade cases have been effective in keeping unfairly traded imports out of the U.S. market. The U.S. government has reached agreements with several allied countries to replace applicable Section 232 tariffs on steel with quota systems or other trade agreements.

The U.S. and European Union are also negotiating the world’s first carbon-based sectoral arrangement, the Global Arrangement on Sustainable Steel and Aluminum, that will restrict access to their markets for higher-emitting steel imports and countries that dump cheap imports. Other countries will be able to join if they meet criteria for restoring market orientation and reducing trade in high-carbon steel and aluminum products. At the end of 2023, the U.S. and EU agreed to extend both the negotiations and existing tariff rate quotas into 2025.

During 2023, sunset review hearings by the U.S. International Trade Commission kept in place antidumping (AD) and countervailing duties (CVD) orders on cut-to-length steel plate from several countries. Trade remedy orders such as these play a key role in allowing the American steel industry to compete on a level playing field against unfairly traded imports, and recent sunset reviews have left the orders almost entirely in place. Sunset reviews are typically held with respect to specific exporters and products every five years.

In December of 2022, the World Trade Organization (WTO) ruled that the Section 232 tariffs violated U.S. WTO commitments. The U.S. government has appealed the ruling. Imports of finished steel in 2023 were down approximately 14% from 2022 levels and finished steel imports accounted for approximately 21% of U.S. market share.

We also experience competition from other materials. Depending on our customers’ end use of our products, there are often other materials, such as concrete, aluminum, plastics, composites and wood that compete with our steel products. When the price of steel relative to other raw materials rises, these alternatives can become more attractive to our customers.

In our steel products segment we manufacture a wide range of products that primarily have construction applications. In each of our product lines, we face competition from well capitalized domestic and international providers offering similar products and services. We compete on price, service (e.g., consulting on engineering requirements, facilitating logistics, and timeliness of order fulfillment) and quality (e.g., reliably producing to exacting custom specifications). We believe we have established a reputation as a market leader who can consistently meet customer needs for these products in a timely manner due to our nationwide footprint of modern production facilities and entrepreneurial, performance driven culture.

Competition in our scrap and raw materials business is also vigorous. The scrap metals market consists of many firms and is highly fragmented. Firms typically compete on price and geographic proximity to the sources of scrap metal.

Backlog

In the steel mills segment, Nucor’s backlog of orders was approximately $3.27 billion and $2.33 billion at December 31, 2023 and 2022, respectively. Order backlog for the steel mills segment includes only orders from external customers and excludes orders from other Nucor businesses. Nucor’s backlog of orders in the steel products segment was approximately $4.97 billion and $6.65 billion at December 31,

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2023 and 2022, respectively. The majority of these orders are expected to be filled within one year. Order backlog within our raw materials segment is not meaningful because the vast majority of the raw materials that segment produces are used internally.

Sources and Availability of Raw Materials

An ample supply of high-quality scrap and scrap substitutes is critical to support Nucor’s ability to produce high-quality steel. The goal of Nucor’s raw materials segment is to safely produce, source, trade and transport steelmaking raw materials. Nucor’s raw materials investments are focused on creating an advantage for our steelmaking operations, through a global information network and flexible approach to metallics supply.

Scrap and scrap substitutes are the most significant element in the total cost of steel production. The average cost of scrap and scrap substitutes used in our steel mills segment decreased approximately 14% from $492 per gross ton used in 2022 to $421 per gross ton used in 2023. On average, it takes approximately 1.1 tons of scrap and scrap substitutes to produce one ton of steel. We employ variable steel pricing mechanisms so that we are better able to maintain operating margins and meet our customer commitments as scrap and scrap substitute costs fluctuate.

Nucor remains focused on securing reliable access to low-cost raw material inputs as they are the Company’s largest expense. We believe Nucor’s broad, balanced supply chain is an important strength which allows us to reduce the cost of our steelmaking operations, create a shorter supply chain and have greater control over our metallic inputs. Our investment in DRI production facilities and scrap yards, as well as our access to international raw materials markets, provides Nucor with significant flexibility in optimizing our raw material mix. Additionally, having a significant portion of our raw materials supply under our control minimizes risk associated with the global sourcing of raw materials, particularly since a good deal of scrap substitutes comes from regions of the world that have historically experienced greater political turmoil, such as Ukraine, Russia and Brazil. We believe the continued successful implementation of our raw material strategy, including key investments in DRI production, as well as in the scrap brokerage and processing services performed by our team at DJJ, gives us greater control over our metallic inputs and thus helps us navigate significant fluctuations in the availability and costs of critical inputs.

DJJ acquires ferrous scrap from numerous sources, including manufacturers of products made from steel, industrial plants, scrap dealers, peddlers, auto wreckers and demolition firms. In recent years, we have developed closed loop recycling programs with some of our larger customers, through which we are able to reliably source more high purity prime scrap while reducing the waste inherent in our customers’ operations.

We purchase pig iron as needed primarily from overseas sources. We received over 1,600,000 gross tons of pig iron in 2023. Our DRI plants in Trinidad and Louisiana supplied approximately 3,350,000 metric tons of DRI to our steel mills in 2023. The primary raw material for our DRI facilities is pelletized iron ore, which we purchase from various international suppliers.

The primary raw material for our steel products segment is steel produced by Nucor’s steel mills.

Energy Consumption and Costs

Steel manufacturing is considered an energy-intensive, trade exposed industry. As a result, we continuously strive to make our operations in all three of our business segments more energy efficient. In addition, we proactively engage with suppliers, regulators and other energy industry participants to ensure the continued domestic availability of reliable, low-cost sources of energy in various forms.

Our steelmaking operations utilize EAFs for 100% of their production. The total energy consumed by Nucor includes electricity, natural gas, oxygen and carbon raw material inputs. For the scrap melting

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process, electricity is the primary energy source, with natural gas combustion serving as the fuel for reheat furnaces and other pre-heating operations. Our DRI facilities in Trinidad and Louisiana are also large consumers of natural gas.

The availability and prices of electricity and natural gas are influenced by many factors, including changes in supply and demand, the regulatory environment and pipeline/transmission infrastructure.

We use a variety of strategies to manage our exposure to price risk of natural gas, including financial hedges and physical hedges resulting from our owned natural gas drilling operations. In addition to the currently producing wells in the Piceance Basin, Nucor owns leasehold interests in natural gas properties in the South Piceance Basin, in the Western Slope of Colorado. To support Nucor’s operating wells and potential future well developments on these properties, Nucor has entered into long-term agreements directly with third-party gathering and processing service providers. Natural gas produced by Nucor’s drilling operations is sold to partially offset our exposure to changes in the price of natural gas consumed by our DRI plant in Louisiana, and by our steel mills in the United States. Nucor has full discretion on its participation in all future drilling capital investments, however, in the fourth quarter of 2022 we decided that it is unlikely that we will develop the remaining portions of our unproved oil and natural gas properties.

We closely monitor developments in public policy relating to energy production and consumption. We engage with policymakers to provide technical information that can inform policy decisions and avoid unintended adverse consequences of legislative and regulatory actions. We believe that a thoughtful approach to domestic energy policy can help ensure that steel and steel products manufactured in the United States remain competitive in the global marketplace.

Reducing Greenhouse Gas Emissions

While steel is widely understood to be essential in any modern economy, and is increasingly seen as a critical material for addressing challenges associated with climate change, the sector also has received increased attention for its GHG emissions and their potential contribution to climate change.

As the leading U.S. supplier of numerous essential steel products using primarily recycled ferrous scrap metal, we believe we are in a competitively advantageous position. Our circular production process has one third the greenhouse gas emissions intensity of the average traditional extractive steelmaking process using a blast furnace.

We are committed to further reducing our GHG footprint over time. In November 2023, we announced net-zero, science-based greenhouse gas (GHG) targets for 2050 and established a new interim emissions reduction target for 2030. These new GHG intensity targets are defined by the Global Steel Climate Council’s (GSCC) “Steel Climate Standard”, an ambitious standard that is aligned with both the Paris Climate Agreement’s emission reduction goals for the steel sector by 2050, and the International Energy Agency’s “Net Zero by 2050: A Roadmap for the Global Energy System” glidepath.

Nucor’s net-zero 2050 and interim 2030 targets include scopes 1, 2, and 3 emissions from the production of hot rolled steel as defined by the GSCC, making Nucor the first diversified steelmaker in the U.S. to set GHG reduction targets encompassing all three scopes.

We plan to achieve our goals by increasing the use of clean electricity, deploying carbon capture and sequestration where practical and developing near zero GHG ironmaking technologies, as well as through the development and deployment of technologies enabling us to reduce our consumption of injection and charge carbon and natural gas.

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Clean Electricity Initiatives

GHG emissions associated with our consumption of electrical power constitute approximately 21% of our current footprint.

We have invested in two companies developing next generation nuclear power technology, and we are exploring ways in which we can work with these companies and with our electric utility partners to accelerate deployment of these technologies on the regional power grids serving our operations, as they mature and become scalable.

Currently, we are a party to two Power Purchase Agreements (“PPAs”). Under these PPAs, we have agreed to purchase for a fixed price output from one solar and one wind project in the United States. The PPAs are structured for monthly financial settlement. We have undertaken these initiatives to support the ongoing transition of the U.S. power grid to a greater reliance on renewable power. As part of these arrangements, we will also receive Renewable Energy Credits (“RECs”) commensurate with the renewable power we purchase. These RECs can be applied against a portion of our GHG emissions, enabling us to receive credit for reducing them. The pay-fixed, receive-floating nature of this arrangement also offsets a portion of our exposure to higher prices for electricity over the life of the contract. We continue to evaluate and consider similar additional transactions, as well as opportunities to deploy renewable power generation and storage assets on site at our facilities.

Carbon Capture and Sequestration (CCS) Activity

In 2023, we signed an agreement with Exxon Mobil to capture, transport, and store carbon from our DRI plant in Convent, Louisiana. ExxonMobil will capture between 600,000 and 800,000 metric tons per year of CO2 from our DRI plant and store the CO2 at an ExxonMobil-owned facility in Louisiana. We expect start-up in 2026. ExxonMobil will receive the related tax credits and pay us a fee for each ton of CO2 we supply.

Near Zero Ironmaking

We have invested in Electra, a company that is working to develop and scale a process to produce carbon-free iron that can be used to make steel. Electra’s technology relies on intermittent, clean energy to refine low-grade iron ores through electrochemical and hydrometallurgical processes. Electra’s process operates at 60°C and removes critical impurities from low-grade ores to produce high purity iron that can be charged directly into EAF steelmaking. Electra’s technology is unproven at scale at this stage.

We have entered into a partnership with Tata Steel to explore the possibility of scaling and commercializing HIsarna, a technology that enables the production of iron from low grade iron ore fines without using coke ovens. Coke ovens consume bituminous coal at high temperature to make coke, an essential ingredient for producing iron in a blast furnace. Both coke ovens and blast furnaces are GHG emissions intensive. While the HIsarna process produces GHG emissions, its CO2 rich waste gas stream can be more readily captured and sequestered. HISarna also produces a slag co-product that has high value for use in the cement industry.

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Government Regulations

Our business operations are subject to numerous federal, state and local laws and regulations, the most significant of which are intended to protect our teammates and the environment. Due to the nature of the steel industry, we are subject to substantial regulations related to safety in the workplace. In addition to the requirements of the state and local governments of the communities in which we operate, we must comply with federal health and safety regulations and environmental regulations, the most significant of which are enforced by the Occupational Safety and Health Administration (“OSHA”) and the Environmental Protection Agency ("EPA"). Safety and environmental stewardship are important values to Nucor. We expect that capital expenditures we will direct toward our efforts in these areas will total approximately $280 million in 2024.

Nucor operates a robust and sustainable environmental program that incorporates the concept of each individual teammate, as well as management, being responsible for environmental performance. All steel mills that have been owned and operated by Nucor for over five years are ISO 14001 certified. Achieving ISO 14001 certification requires Nucor’s steel mills to implement an environmental management system with measurable targets and objectives, such as reducing the use of oil and grease and minimizing electricity use.

The principal federal environmental laws that regulate our business include the Clean Air Act (the “CAA”), which regulates air emissions; the Clean Water Act (the “CWA”), which regulates water withdrawals and discharges; the Resource Conservation and Recovery Act (the “RCRA”), which addresses solid and hazardous waste treatment, storage and disposal; and the Comprehensive Environmental Response, Compensation and Liability Act (the “CERCLA”), which governs releases of hazardous substances, and remediation of contaminated sites. Our operations are also subject to state and local environmental laws and regulations.

As it relates to air emission rates, EAFs are the most efficient and cleanest steel making process commercially available today. In comparison to blast furnaces, EAF emissions of sulfur oxides, particulate matter and GHGs per ton of steel are significantly less than integrated steelmaking operations utilizing blast furnaces. Operating EAFs instead of blast furnaces is a proven air quality improvement strategy. In addition, each of our steel mills operates air pollution control devices (baghouses) to collect and capture particulate emissions (“EAF dust”) from the steelmaking process.

The primary raw material of Nucor’s steelmaking operations is scrap metal. The process of recycling scrap metal generates particulate matter emissions that includes contaminants such as paint, zinc, lead, chrome and other metals. Initially, the particulate matter captured and collected is classified as a listed hazardous waste under the RCRA. However, because these contaminants contain valuable metals, the EAF dust is recycled to recover these metals. Nucor sends all but a small fraction of the EAF dust it collects to recycling facilities that recover the zinc, lead, chrome and other valuable metals from this dust.

In addition to recycling EAF dust, Nucor mills beneficially reuse steel slag in road materials as a granular base, embankments, engineered fill, highway shoulders, and hot mix asphalt pavement. The physical, chemical, mechanical and thermal properties of steel slag provide a vital resource for construction companies and activities. We take considerable pride in our recycling efforts.

Not only does the RCRA establish standards for the management of solid and hazardous wastes, the RCRA also addresses the environmental impact of contamination from waste disposal activities and from recycling and storage of most wastes. Periodically, past waste disposal activities that were legal when conducted that may now pose a contamination threat are discovered. When the U.S. Environmental Protection Agency determines these off-site properties are contaminated, Nucor quickly evaluates such claims and, if Nucor is determined to be responsible, we do our part to remediate our share of such issues. Nucor believes all identified liabilities under the RCRA are either currently being resolved or have been fully resolved.

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Nucor is also not presently considered a major contributor to any major cleanups under the CERCLA for which Nucor has been named a potentially responsible party. Nucor regularly evaluates these types of potential liabilities and, if appropriate, maintains reserves appropriate to remediate the identified liabilities. Under the RCRA, private citizens may also bring an action against the operator of a regulated facility for potential damages and payment of cleanup costs. Nucor believes that its system of internal evaluation and due diligence provides reasonable assurance as to these types of potential liabilities so that compliance with these regulations will not have a material adverse effect on our results of operations, cash flows or financial condition beyond that already reflected in the reserves established for them.

To protect water resources, the CWA regulates water withdrawals and discharges. When applicable, Nucor maintains water withdrawal and discharge permits at its facilities under the national pollutant discharge elimination system program of the CWA and conducts its operations in compliance with those permits. Nucor also maintains permits from local governments if the facility discharges into publicly owned treatment works.

Capital expenditures at our existing facilities that are associated with environmental regulation compliance for 2023 and 2024 are estimated to be less than $100 million per year.

Human Capital Resources

Culture, Organization and Compensation

We consider our teammates the most important part of Nucor and believe that our culture—and the encouragement that we provide to our teammates to “grow the core; expand beyond; and live our culture” —provides us with a competitive advantage.

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While our business strategy shapes "what we do", our culture shapes "how" we go about doing it. We believe adherence to the key tenets of our culture — safety, integrity, trust, innovation, open communication, teamwork, inclusion, courage, can-do attitude and ownership — is a powerful differentiator for Nucor and positions the Company favorably to deliver ongoing stockholder value to our investors.

 

Nucor has a streamlined organizational structure that allows our teammates to make quick decisions and innovate. Our organization is also highly decentralized, with most day-to-day operating decisions made by our division general managers and their teams. With approximately 32,000 teammates, fewer than 200 work in our principal executive offices in Charlotte, North Carolina. By empowering our teammates, our goal is to foster an entrepreneurial mindset, along with a strong sense of personal responsibility and a culture of accountability and belonging. This empowerment is reinforced by our compensation policies (see discussion on “Pay for Performance” in Our Teammates - Compensation, Training & Development section below) to drive results and contribute to our success.

Teammate input is essential for us to maintain our culture of empowered teammates enabling efficient operational decisions. Aside from our practice of everyday open communication, we periodically ask our teammates to formally provide feedback. Since 1986, we have asked our teammates to complete a comprehensive survey in order to gather feedback on a range of topics, including matters relating to the effectiveness of our culture. We view the survey as an important tool in continually improving our company and ensuring our teammates remain engaged and satisfied. This survey is conducted every three years, the last of which was conducted in 2022. In the most recent survey, 89% of the responses were favorable in the category of “Satisfaction & Commitment.” The overall percentage of negative responses in the most recent survey has dropped by 25 percentage points since the survey began in 1986. The next survey will be conducted in the summer of 2025. Teammates of certain previously acquired businesses – which accounted for approximately 15% of our workforce as of December 31, 2023 – complete a comparable survey that has also shown an improving trend over time.

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Safety, Diversity, Equity and Inclusion

One of Nucor’s core values is our teammates’ well-being and safety, and it is our goal to become the safest steel company in the world. Our foremost responsibility is to work safely, which requires our teammates to identify unsafe conditions and activities and mitigate these hazards. We will continue working to eliminate exposures that can lead to injury and encourage our teammates to share their ideas for safety improvement. Two key metrics Nucor uses to measure safety are: the Injury/Illness Rate and Days Away, Restricted and Transfer (“DART”) Case Rate.

Nucor calculates the annual Injury/Illness Rate by dividing the number of work-related injuries and illnesses by the total number of hours worked by all Nucor teammates in a given year, and then multiplying the resulting percentage by 200,000, the equivalent of 100 full-time employees working 40 hours per week, 50 weeks per year. In 2023, we achieved an annual Injury/Illness Rate of 0.79, which marks the fifth consecutive year of a reduced rate. This marks an improvement over our annual Injury/Illness Rate of 0.95 in 2022.

Nucor uses the DART Case Rate to assess and manage the risk of serious injury in the workplace. Nucor calculates the annual DART Case Rate by dividing the number of cases resulting in days away from work, restricted work activity and/or job transfers by the total number of hours worked by all Nucor teammates in a given year, and then multiplying the resulting percentage by 200,000, the equivalent of 100 full-time employees working 40 hours per week, 50 weeks per year. In 2023, we achieved an annual DART Case Rate of 0.36 (0.43 in 2022).

Since 1998, Nucor has used the President’s Safety Award to recognize divisions that achieve strong records of safety performance based on objective metrics. The President’s Safety Award has the following three levels: Platinum, which is awarded to divisions with zero recordable illnesses or injuries; Gold, which is awarded to divisions that have an Illness/Injury Rate below 0.6 and a DART Case Rate below one-third of the national average for their NAICS code; and Silver, which is awarded to divisions that achieve one-third the national average on Illness/Injury Rate and DART Case Rate. In 2023, 31 divisions achieved the Platinum level award, 17 divisions achieved the Gold level award and 24 divisions achieved the Silver level award. Nucor also has 24 OSHA Voluntary Protection Program Sites, OSHA’s highest level of recognition.

In 2020, the Company introduced the Nucor President’s Safety Cup as a way to foster more safety benchmarking throughout the Company. The President’s Safety Cup is an additional annual award that is presented to the region that has the best safety record across all of Nucor. Not only does this reward a facility for exceeding their individual safety goals, but it encourages our teams to innovate and to share ideas and improve safety as a group. The President’s Safety Cup trophy travels among the mills and divisions that make up the winning region.

We believe, however, that safety is about more than just avoiding injuries. At Nucor, safety means making sure our teammates feel safe, welcome and valued when they come to work each day. We are accelerating our diversity, equity and inclusion efforts with the objective of ensuring that each teammate feels a sense of belonging at Nucor. By creating an inclusive workplace, we believe we will attract top talent, foster innovation, increase a sense of empowerment and make Nucor a stronger company. Over the past two years, approximately 31% of Nucor teammates hired or promoted to the Manager or General Manager level were diverse.

Some of the initiatives focused on inclusion, equity and diversity we have launched include:

•Conducting focused discussion groups to share experiences of the workplace and the effects of race and gender;

•Taking feedback onboard to enhance training and development;

•Webcasts by diverse senior leaders sharing their career progression and life experiences

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•Increasing focus and intensity of engagement with supportive external partners, such as:

oNational Society of Black Engineers;

oSociety of Women Engineers;

oNational Society of Hispanic Professional Engineers;

oINROADS (non-profit focused on addressing the lack of diversity in corporate America)

oTuskegee University; and

oPurdue University’s Women in Engineering Program and Minorities in Engineering Program.

Our Teammates - Compensation, Training & Development

Nucor had approximately 32,000 teammates as of December 31, 2023. The vast majority of our teammates are located in the United States, with only a small number of teammates located outside of North America. Our operations are highly automated, allowing us to improve safety outcomes and take advantage of lower employment costs while still providing our teammates with compensation that we believe is highly competitive as compared to businesses in our industry. At Nucor, we believe in “Pay-for-Performance.” Nucor teammates typically earn a significant part of their compensation based on their productivity. Production teammates work under group incentives that provide increased earnings for increased production. This additional incentive compensation is paid weekly in most cases. Nucor has also historically contributed 10% of earnings before federal taxes to a profit sharing plan for the majority of teammates below the officer level. We believe such compensation practices incentivize our workforce and reinforce our culture.

While Nucor seeks to hire qualified and talented individuals as new teammates, we also believe in developing the skills of our existing team by providing educational and on-the-job training, in addition to safety training. Further, Nucor believes it is important for senior management to also be familiar with, and have had direct experience running, Nucor’s mills and other operational divisions. The vast majority of our teammates are not represented by labor unions and we believe our teammate turnover is low.

At Nucor, we believe that a diversity of perspectives and background helps to facilitate the “Nucor Way” as we work to “grow the core; expand beyond; and live our culture.” We also believe that recruiting and hiring the best talent available will continue to provide us with the best opportunity for continued future success.

Policies

Nucor has a long history of conducting our businesses in a manner consistent with high standards of social responsibility. We have adopted a comprehensive Human Rights Policy, which operates in conjunction with many other Nucor policies related to ethical conduct and human rights, including our Standards of Business Conduct and Ethics, Code of Ethics for Senior Financial Professionals, Supplier Code of Conduct and Policy on Eliminating Forced Labor from our Supply Chain.

More information about our social strategies, including our most recent Equal Employment Opportunity EEO-1 report, can be found at www.nucor.com/esg.

Available Information

Nucor’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, and any amendments to these reports, as well as proxy statements and other information, are available on our website at www.nucor.com, as soon as reasonably practicable after Nucor files these documents electronically with, or furnishes them to, the U.S. Securities and Exchange Commission (the “SEC”).

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We use the investor relations portion of our website, www.nucor.com/investors, to distribute information, including as a means of disclosing material, non-public information and for complying with our disclosure obligations under Regulation FD. We routinely post and make accessible financial and other information regarding the Company on our website. Accordingly, investors should monitor the investor relations portion of our website, in addition to our press releases, SEC filings and other public communications. Except as otherwise expressly stated in these documents, the information contained on our website or available by hyperlink from our website is not a part of this report and is not incorporated into this report or any other documents we file with, or furnish to, the SEC.

Item 1A. Risk Factors

Many of the factors that affect our business and operations involve risk and uncertainty. The factors described below are some of the risks that could materially negatively affect our business, financial condition, results of operations and cash flows.

Industry Specific Risk Factors

Overcapacity in the global steel industry could increase the level of steel imports, which may negatively affect our business, results of operations, financial condition and cash flows.

Global steel production overcapacity continues to be an ongoing risk to Nucor and the entire steel industry. The OECD estimated that global steel production overcapacity would grow from approximately 556.1 million metric tons in 2022 to more than 600 million metric tons 2023, with additional capacity expected to come online over the next few years. China continues to be a significant contributor to excess steelmaking capacity, producing more than one billion tons of steel in each of the past four years, despite slower economic growth. China is also investing in new steelmaking capacity in several countries in southeast Asia and Africa.

During periods of global economic weakness, the effects of this overcapacity are amplified because of weaker global demand for steel and steel products. Steel manufacturers in non-market economies tend not to adjust their production levels in line with regional demand and instead export significant amounts of steel and steel products at prices that can be at or below their costs of production. In countries with non-market economies, the steel industry is often subsidized or owned in whole or in part by the government, which can provide these producers with cost advantages or cause their production decisions to be driven by political or social factors rather than price and demand signals. Surplus output from steel producers in these countries can flow into the U.S. market. These imports to the U.S., which are also affected by demand in the U.S. domestic market, international currency conversion rates, and domestic and international government actions, can result in downward pressure on realized steel prices for Nucor, which can materially adversely affect our business, results of operations, financial condition and cash flows.

In March 2018, the Trump Administration imposed a 25% tariff or quota limits on all imported steel products for an indefinite period of time under Section 232 of the Trade Expansion Act. Since then both the Trump and Biden Administrations have negotiated tariff rate quotas with several countries allowing them to export a set amount of steel to the U.S. market without being subject to these Section 232 tariffs. In December of 2022, the World Trade Organization (WTO) ruled that the Section 232 tariffs violated U.S. WTO commitments. The U.S. government strongly disagrees with the ruling and is appealing. When the Section 232 or other import tariffs, quotas or duties expire or if others are further relaxed or repealed, or if relatively higher U.S. steel prices make it attractive for foreign steelmakers to export their steel products to the U.S., despite the presence of import tariffs, quotas or duties, the resurgence of substantial imports of foreign steel could create downward pressure on U.S. steel prices.

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Our business requires substantial capital investment and maintenance expenditures, and our capital resources may not be adequate to provide for all of our cash requirements.

Our business requires substantial expenditures for routine maintenance and to remain competitive. For the three-year period ended December 31, 2023, our total capital expenditures were approximately $5.87 billion. We have also recently announced substantial capital projects that we expect will increase production capacity, increase the efficiency of our operations and enhance our product offerings. Although we expect requirements for our business needs, including the funding of capital expenditures, debt service for financings and any contingencies, will be financed by internally generated funds, short-term commercial paper issuances, offerings of our debt securities or from borrowings under our $1.75 billion unsecured revolving credit facility, we cannot guarantee that this will be the case. Additional acquisitions, increases in interest rates or unforeseen events could require financing from additional sources.

Changes in the availability and cost of electricity and natural gas are subject to volatile market conditions that could adversely affect our business.

Our steel mills are large consumers of electricity and natural gas. In addition, our DRI facilities are also large consumers of natural gas. We rely upon third parties for our supply of energy resources consumed in the manufacture of our products. The prices for and availability of electricity and natural gas can be volatile. They are often affected by weather, political, regulatory and economic factors beyond our control, and we may be unable to raise the price of our products to offset increased energy costs. Disruptions, including physical or information systems related issues, that impact the supply of our energy resources could temporarily impair our ability to manufacture our products for our customers. Increases in our energy costs that are not similarly applicable to our competitors' operations could materially adversely affect our business, results of operations, financial condition and cash flows.

Competition from other steel producers, imports or alternative materials may adversely affect our business.

We face ongoing competition from other steel producers and imports that compete with our products on price, quality and service. The markets for our products are highly competitive and a number of firms, domestic and foreign, participate in the steel, steel products and raw materials markets. Depending on a variety of factors, including the cost and availability of raw materials, energy, technology, labor, transportation and capital costs, currency exchange rates, government subsidies of foreign steel producers and other global political and economic factors, our business may be materially adversely affected by more intense competitive forces.

In many applications, steel competes with other materials, such as concrete, aluminum, plastics, composites and wood. Increased use or availability of these materials in substitution for steel products could have a material adverse effect on prices and demand for our steel products.

Our industry is cyclical and both recessions and prolonged periods of slow economic growth could have an adverse effect on our business.

Demand for most of our products is cyclical in nature and sensitive to general economic conditions. Our business supports cyclical industries, such as the construction, energy, metals service centers, appliance and automotive industries. As a result, downturns in the U.S. economy or any of these industries could materially adversely affect our results of operations, financial condition and cash flows. The U.S. economy has experienced a strong recovery from the conditions experienced at the onset of the COVID-19 pandemic, but related labor shortages and supply chain disruptions, new or proposed legislation related to governmental spending, inflation and increases in interest rates have impacted, and will continue to impact, economic growth. Even with this economic recovery, challenges from global production overcapacity in the steel industry and ongoing uncertainties, both in the United States and in other regions of the world, remain.

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We are unable to predict the duration of current economic conditions or the magnitude or timing of changes in economic activity. Future economic downturns, prolonged slow growth or stagnation in the economy, a sector-specific slowdown in one of our key end-use markets, such as nonresidential construction, or changes in inflation could materially adversely affect our business, results of operations, financial condition and cash flows, especially in light of the capital-intensive nature of our business.

The results of our operations are sensitive to volatility in steel prices and the cost and availability of raw materials, particularly scrap steel.

We rely to an extent on outside vendors to supply us with key consumables such as graphite electrodes, alloys and other raw materials, including both scrap and scrap substitutes (e.g., prime scrap, pig iron and DRI) that are critical to the manufacture of our steel products. The raw material required to produce DRI is pelletized iron ore. Although we have vertically integrated our business by constructing our DRI facilities in Trinidad and Louisiana and also by acquiring our scrap processing and brokerage operations (“DJJ”) in 2008, we still must purchase most of our primary raw material, steel scrap, from numerous other sources located throughout the United States and internationally. Although we believe that the supply of scrap and scrap substitutes will remain adequate to operate our facilities, prices of these critical raw materials are volatile and are influenced by changes in scrap exports in response to changes in the scrap, scrap substitutes and iron ore demands of our global competitors, as well as volatility in currency rates and political conditions.

At any given time, we may be unable to obtain an adequate supply of these critical raw materials with price and other terms acceptable to us. The availability and prices of raw materials may also be negatively affected by new laws and regulations, allocation by suppliers, interruptions in production, accidents or natural disasters, war and other forms of armed conflict or political instability, changes in exchange rates, worldwide price fluctuations, including due to global political and economic factors, changes in governmental, business and consumer spending, inflation, increases in interest rates, labor shortages, and the availability and cost of transportation. Many countries that export steel into our markets restrict the export of scrap, protecting the supply chain of some foreign competitors. This trade practice creates an artificial competitive advantage for foreign producers that could limit our ability to compete in the U.S. market.

If our suppliers increase the prices of our critical raw materials, we may not have alternative sources of supply. In addition, to the extent that we have quoted prices to our customers and accepted customer orders for our products prior to purchasing necessary raw materials, we may be unable to raise the price of our products to cover all or part of the increased cost of the raw materials or pass along increased transportation costs. Also, if we are unable to obtain adequate, cost-effective and timely deliveries of our required raw materials, we may be unable to timely manufacture sufficient quantities of our products. This could cause us to lose sales, incur additional costs, experience margin compressions or suffer harm to our reputation and customer relationships.

Our steelmaking processes, our DRI processes, and the manufacturing processes of many of our suppliers, customers and competitors are energy intensive and generate carbon dioxide and other GHGs. The regulation of these GHGs could have a material adverse impact on our results of operations, financial condition and cash flows.

Our operations are subject to numerous federal, state and local laws and regulations relating to the protection of the environment, and, accordingly, we make provision in our financial statements for the estimated costs of compliance. There are inherent uncertainties in these estimates. Most notably, the uncertainty of policies, enforcement priorities, legislation and regulations related to climate change mitigation strategies pose the greatest risk.

As a carbon steel producer, Nucor could be increasingly affected both directly and indirectly by new or changing carbon policy decisions and mandates. Carbon is an essential raw material in Nucor’s steel production processes. Furthermore, Nucor steel mills use significant amounts of electricity as all of its mills utilize EAFs for 100% of their steel melting operations and the decarbonization of electricity

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generation may lead to high power costs and decreased reliability. Significant changes to the regional power grids serving our steel mills and/or new rulemaking or legislation affecting the operation of these power grids could have a material adverse impact on our results of operations, financial condition and cash flows.

Environmental regulation compliance and remediation could result in substantially increased costs and materially adversely impact our competitive position.

We incur significant costs to achieve and maintain compliance with environmental regulations and remediation obligations. The principal federal environmental laws include the CAA, which regulates air emissions; the CWA which regulates water withdrawals and discharges; the RCRA, which addresses solid and hazardous waste treatment, storage and disposal; and the CERCLA, which governs releases of hazardous substances, and remediation of contaminated sites. Our operations are also subject to state and local environmental laws and regulations.

In addition to the above mentioned statutes, revisions to National Ambient Air Quality Standards, including the implementation actions/decisions of environmental agencies, could make it significantly more difficult to obtain construction permits and permits to expand existing operations. Resulting cancellations, delays or unanticipated costs to these projects could negatively impact our ability to generate expected returns on our investments. These regulations can also increase our cost of energy, primarily electricity, which we use extensively in the steelmaking process. We may in the future incur substantially increased costs complying with such regulations, particularly if federal regulatory agencies were to change their enforcement posture with respect to such regulations.

Emerging customer preferences for greater product transparency and less GHG intensive materials may put us at a competitive disadvantage or reduce demand for our products.

The federal government and numerous states are considering establishing, or have already established, requirements for Environmental Product Declarations (“EPDs”) so that consumers may more readily evaluate the environmental impacts of products. California has enacted the “Buy Clean California Act” and California has also established Global Warming Potential benchmarks through EPDs for certain materials, including certain steel products. EPD legislation has caused Nucor to incur additional costs and has the potential to put Nucor and its customers at a disadvantage to foreign competitors unless standardized mechanisms are used to fully evaluate products produced by foreign producers.

General Risk Factors

We are subject to information technology and cyber-security threats which could have an adverse effect on our business and results of operations.

We utilize various information technology systems to efficiently address business functions ranging from the operation of our production equipment to administrative computation to the storage of data such as intellectual property and proprietary business information. We also utilize third-party service providers for certain information technology services that are important to our operations. We continuously evaluate our cyber-security systems and practices, assess potential threats, and improve our information technology networks, policies and procedures to address potential vulnerabilities. Despite efforts to assure secure and uninterrupted operations, threats from increasingly sophisticated cyber-attacks or system failures could result in materially adverse operational disruptions or security breaches of our systems or those of our third-party service providers. These risks could result in disclosure or destruction of key proprietary information or personal data or reputational damage, theft of assets or trade secrets, or could adversely affect our ability to physically produce or transport steel, resulting in lost revenues, as well as delays in reporting our financial results. We also could be required to spend significant financial and other resources to remedy the damage caused by a cyber-security breach, including to repair or replace networks and information technology systems. We may also contend with potential liability for stolen information, increased cyber-security protection costs, litigation expense and increased insurance premiums.

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Our operations are subject to business interruptions and casualty losses.

The steelmaking business is subject to numerous inherent risks, particularly unplanned events such as explosions, fires, other accidents, natural disasters such as floods, hurricanes or earthquakes, critical equipment failures, acts of terrorism, inclement weather and transportation interruptions. Nucor maintains property insurance for these types of losses but self-insures a significant portion of the program. Therefore, while our insurance coverage could offset a portion of the losses relating to some of those types of events, our results of operations and cash flows could be adversely impacted to the extent that any such losses are not covered by our insurance, or that there are significant delays in resolving our claims with our insurance providers.

We acquire businesses and enter into joint ventures from time to time and we may encounter difficulties in integrating businesses we acquire.

We plan to continue to seek attractive opportunities to acquire businesses, enter into joint ventures and make other investments that strengthen Nucor. Realizing the anticipated benefits of acquisitions or other transactions will depend on our ability to operate these businesses and integrate them with our operations, effectively identify and manage risks, and cooperate with our strategic partners. Our business, results of operations, financial condition and cash flows could be materially adversely affected if we are unable to successfully integrate these businesses or otherwise fail to realize the anticipated benefits of acquisitions or other transactions.

Risks associated with operating in international markets could adversely affect our business, financial position and results of operations.

Certain of our businesses and investments are located outside of the United States, in Canada, Mexico and in emerging markets. There are a number of risks inherent in doing business in or sourcing raw materials from such markets. These risks include, but are not limited to: unfavorable political or economic factors; local labor and social issues; changes in regulatory requirements; fluctuations in foreign currency exchange rates, interest rates and inflation; and complex foreign laws, treaties including tax laws, and the Foreign Corrupt Practices Act of 1977. These risks could restrict our ability to operate our international businesses profitably and therefore have a negative impact on our financial position and results of operations. In addition, our reported results of operations and financial position could also be negatively affected by exchange rates when the activities and balances of our foreign operations are translated into U.S. dollars for financial reporting purposes.

Pandemics, epidemics and other public health emergencies in the future, could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Our operations expose us to risks associated with pandemics, epidemics and other public health emergencies. The COVID-19 pandemic had and any future similar events may have negative impacts on our operations, supply chain, transportation networks and customers, which may compress our margins or impact demand for our steel products, including as a result of preventative and precautionary measures that we, other businesses and governments have taken or may take in the future.

In addition, the ability of our teammates and our suppliers’ and customers’ teammates to work may be significantly impacted by these types of public health emergencies. Our customers may be directly impacted by business interruptions or weak market conditions and may not be willing or able to fulfill their contractual obligations. Furthermore, the progression of and global response to these types of public health emergencies, as was the case with the COVID-19 pandemic, can cause and increase the risk of delays in construction activities and equipment deliveries related to our capital projects, including potential delays in obtaining permits from government agencies, as well as changes in the prices and availability of labor and equipment for capital projects.

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The accounting treatment of equity method investments, goodwill and other long-lived assets could result in future asset impairments, which would reduce our earnings.

We periodically test our equity method investments, goodwill and other long-lived assets to determine whether their estimated fair value is less than their value recorded on our balance sheet. The results of this testing for potential impairment may be adversely affected by uncertain market conditions for the global steel industry, as well as changes in interest rates, commodity prices and general economic conditions. If we determine that the fair value of any of these assets is less than the value recorded on our balance sheet, and, in the case of equity method investments the decline is other than temporary, we would likely incur a non-cash impairment loss that would negatively impact our results of operations.

Tax increases and changes in tax laws and regulations or exposure to additional tax liabilities could adversely affect our financial results.

The steel industry and our business are sensitive to changes in taxes. As a company based in the United States, Nucor is more exposed to the effects of changes in U.S. tax laws than some of our major competitors. Our provision for income taxes and cash tax liability in the future could be adversely affected by changes in U.S. tax laws.

Nucor recognizes the effect of income tax positions only if those positions are believed to be more likely than not of being sustained. We cannot predict whether taxing authorities will conduct an audit challenging any of our tax positions and there can be no assurance as to the outcome of any challenges. If we are unsuccessful in any of these matters, we may be required to pay taxes for prior periods, interest, fines or penalties.

We are subject to legal proceedings and legal compliance risks.

We spend substantial resources ensuring that we comply with domestic and foreign regulations, contractual obligations and other legal standards. Notwithstanding this, we are subject to a variety of legal proceedings and legal compliance risks in respect of various issues, including regulatory, safety, environmental, employment, transportation, intellectual property, contractual, import/export, international trade and governmental matters that arise in the course of our business and in our industry. For information regarding our current significant legal proceedings, see “Item 3. Legal Proceedings.” A negative outcome in an unusual or significant legal proceeding or compliance investigation could adversely affect our financial condition and results of operations. While we believe that we have adopted appropriate risk management and compliance programs, the nature of our operations means that legal compliance risks will continue to exist and additional legal proceedings and other contingencies, the outcome of which cannot be predicted with certainty, will arise from time to time.

Item 1B. Unresolved Staff Comments

None.

Item 1C. Cybersecurity

Nucor recognizes the importance of developing, implementing, and maintaining effective cybersecurity measures designed to protect our information systems and the confidentiality, integrity, and availability of our data. We face a number of information technology and cybersecurity threats which could have an adverse effect on our business and results of operations.

Notwithstanding the Company’s cybersecurity framework and preventative strategies, we may not be successful in preventing or mitigating a cybersecurity incident that could have a material adverse effect on us. See “Item 1A. Risk Factors” for a discussion of cybersecurity risks.

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Risk Management and Strategy

Overview

We have developed and implemented a cybersecurity risk management program that is intended to enable us to assess, identify, and manage risk associated with cybersecurity threats. Our program is based on the Cybersecurity Framework promulgated by the National Institute of Standards and Technology and other applicable industry standards, and includes the following key elements:

•identification and assessment of cybersecurity threats based on internal and external assessments and monitoring, information from internal stakeholders, and external publications and resources such as those made available by the United States Cybersecurity and Infrastructure Security Agency;

•technical and organizational safeguards designed to protect against identified threats, including documented policies and procedures, technical controls, and employee education and awareness;

•processes to detect the occurrence of cybersecurity events, and maintenance and regular testing of incident response and recovery and business continuity plans and processes; and

•a third-party risk management process to manage cybersecurity risks associated with our service providers, suppliers, and vendors.

The program is designed to foster a culture of cybersecurity risk management across the Company.

Integrated Overall Risk Management

Assessing, identifying, and managing cybersecurity-related risks is integrated into our overall risk management framework. The Company conducts an annual cybersecurity risk assessment and reports the most significant risks and associated planned mitigation strategies to the Audit Committee of the Board of Directors. The annual risk assessment is carried out under the supervision of the President of Nucor Business Technology, the Company’s Cybersecurity Director, and the Company’s Vice President and Corporate Controller. See “Governance” below. The Board also regularly receives focused presentations regarding cybersecurity risks from the Company’s Cybersecurity Director.

Third-Party Engagement

Due to the complexity and ever-changing nature of cybersecurity threats, Nucor engages a range of external experts to assist in its assessment, identification, and management of risks from cybersecurity threats. These include cybersecurity assessors, forensic and incident response experts, and auditors to review the Company’s cybersecurity posture and responsive efforts. Our relationships with these external partners enable us to leverage their expertise with the goal of maintaining best practices.

Oversight of Third-Party Risks

Our third-party service providers, suppliers, and vendors face their own risks from cybersecurity threats that could impact Nucor in certain circumstances. In response, we have implemented processes for overseeing and managing these risks. Those processes include limiting the exposure of our information systems to external systems to the least practicable amount, assessing the third parties’ information security practices before allowing them to access our information systems or data, requiring the third parties to implement appropriate cybersecurity controls in our agreements with them, and conducting ongoing monitoring of their compliance with those requirements. We also utilize third-party risk and compliance monitoring services to monitor our service providers, suppliers, and vendors and to augment the effectiveness of our risk mitigation efforts in this area.

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Risks from Cybersecurity Threats

As of the date of this report, no risks from cybersecurity threats, including as a result of cybersecurity incidents we have experienced in the past, have materially affected or are reasonably likely to materially affect the Company, including its business strategy, results of operations, or financial condition.

Governance

The Company seeks to ensure effective governance in managing risks associated with cybersecurity threats, as more thoroughly described below.

Board of Directors Oversight

The Audit Committee of the Board of Directors is responsible for the oversight of risks from cybersecurity threats. The Audit Committee is composed of directors with a wide range of experience, including risk management and controls, and technology. See “Integrated Overall Risk Management” above.

Management’s Role in Cybersecurity Risk Management

A division of the Company known as Nucor Business Technology, or NBT, is responsible for the Company’s information technology needs, including cybersecurity risk assessment and management. NBT’s cybersecurity function is led by the Cybersecurity Director, who reports to the President of NBT, who in turn reports to the Company’s Chair, President, and Chief Executive Officer. The current Cybersecurity Director has twenty years of experience in the cybersecurity field and has broad expertise in cybersecurity threat assessments and detection, mitigation technologies, cybersecurity training, and incident response.

The Company also has a Risk Committee composed of the following members of the Company’s management:

•Executive Vice President, Business Services & General Counsel

•President, Nucor Business Technology

•Vice President and Corporate Controller

•Vice President and General Manager, Corporate Legal Affairs

•General Manager of Internal Audit

•Cybersecurity Director

•Manager of External Reporting

The Risk Committee is responsible for overseeing the Company’s response to cybersecurity incidents. The Risk Committee and the Chair, President, and Chief Executive Officer inform the Audit Committee and the Board of Directors on cybersecurity risks.

Monitoring of Cybersecurity Incidents

The Cybersecurity Director implements and oversees our processes for regularly monitoring our information systems. This includes security measures and regular audits to identify potential issues. In the event of a cybersecurity incident, we have an established incident response plan that requires prompt notification of the Cybersecurity Director or their designee, who in turn oversees our assessment of and response to the incident. The Cybersecurity Director is also responsible for informing the Risk Committee of cybersecurity incidents, which in turn has a detailed process for assessing the impacts of incidents and monitoring the Company’s mitigation and remediation efforts. Depending on the nature of the incident,

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this process also provides for escalating notification to senior executives, including the Chair, President, and Chief Executive Officer and to the Board of Directors.

Item 2. Properties

We own most of our principal operating facilities. These facilities, by segment, are as follows:

Location	Approximate square footage of facilities		Principal products
Steel mills:
Fontana, California		4,020,000	Flat-rolled steel
Hickman, Arkansas		2,740,000	Flat-rolled steel
Blytheville, Arkansas		2,700,000	Structural steel, sheet steel
Berkeley County, South Carolina		2,430,000	Flat-rolled steel, structural steel
Decatur, Alabama		2,000,000	Flat-rolled steel
Crawfordsville, Indiana		1,890,000	Flat-rolled steel
Norfolk, Nebraska		1,540,000	Steel shapes
Hertford County, North Carolina		1,350,000	Steel plate
Plymouth, Utah		1,290,000	Steel shapes
Ghent, Kentucky		1,260,000	Flat-rolled steel
Jewett, Texas		1,170,000	Steel shapes
Darlington, South Carolina		980,000	Steel shapes
Kankakee, Illinois		850,000	Steel shapes
Memphis, Tennessee		700,000	Steel shapes
Silao, Guanajuato, Mexico		680,000	Flat-rolled steel
Seattle, Washington		660,000	Steel shapes
Tuscaloosa, Alabama		610,000	Steel plate
Auburn, New York		510,000	Steel shapes
Jackson, Mississippi		490,000	Steel shapes
Brandenburg, Kentucky		490,000	Steel plate
Sedalia, Missouri		470,000	Steel shapes
Marion, Ohio		430,000	Steel shapes
Kingman, Arizona		380,000	Steel shapes
Frostproof, Florida		350,000	Steel shapes
Birmingham, Alabama		310,000	Steel shapes
Wallingford, Connecticut		240,000	Steel shapes
Steel products:
Norfolk, Nebraska		1,150,000	Joists, deck, cold finished bar
Arthur, Illinois		1,070,000	Overhead doors
St. Joe, Indiana		1,010,000	Joists, deck, fastener
Brigham City, Utah		1,000,000	Joists, cold finished bar, building systems
Grapeland, Texas		810,000	Joists, deck
Chemung, New York		560,000	Joists, deck
Marseilles, Illinois		550,000	Steel tube
Florence, South Carolina		540,000	Joists, deck
Birmingham, Alabama		480,000	Steel tube
Fort Payne, Alabama		470,000	Joists, deck
Decatur, Alabama		470,000	Steel tube
Louisville, Kentucky		440,000	Steel tube
Trinity, Alabama		380,000	Steel tube
Eufaula, Alabama		360,000	Building systems
Chicago, Illinois		350,000	Steel tube
Waterloo, Indiana		350,000	Building systems

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In the steel products segment, we have 92 operating facilities, excluding the locations listed above, in 39 states with 29 operating facilities in Canada and two in Mexico. Nucor Rebar Fabrication also operates multiple sales offices in Canada and certain other foreign locations. The steel products segment also includes Skyline Steel, LLC, our steel foundation distributor. NWS has leased square footage of approximately 630,000 square feet in Los Angeles, California, and has leased square footage of approximately 420,000 square feet in Houston, Texas.

In the raw materials segment, we have 93 operating facilities in 19 states with one operating facility in Point Lisas, Trinidad. For our DRI facilities in Trinidad and Louisiana, a significant portion of the production process occurs outdoors. The Trinidad site, including leased land, is approximately 1.9 million square feet. The Louisiana site has approximately 174.2 million square feet of owned land with buildings that total approximately 72,500 square feet. DJJ has 85 operating facilities in 18 states along with multiple brokerage offices in the United States and certain other foreign locations.

The average utilization rates of all operating facilities in the steel mills, steel products and raw materials segments in 2023 were approximately 78%, 64% and 71% of production capacity, respectively.

We also own our principal executive offices in Charlotte, North Carolina.

Item 3. Legal Proceedings.

Nucor is 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.

During 2022, Nucor Steel Louisiana, our DRI facility located in St. James Parish, Louisiana, received allegations of violations of the Clean Air Act from the United States Environmental Protection Agency. A combined settlement is currently being negotiated with the United States Department of Justice, United States Environmental Protection Agency and the Louisiana Department of Environmental Quality. We do not believe that any aggregate settlement for these allegations will be material to Nucor.

There were no other proceedings that were pending or contemplated under federal, state or local environmental laws that the Company reasonably believes may result in monetary sanctions of at least $1.0 million (the threshold chosen by Nucor as permitted by Item 103 of Regulation S-K promulgated under the Securities Exchange Act of 1934, as amended, (the "Exchange Act"), and which Nucor believes is reasonably designed to result in disclosure of any such proceeding that is material to its business or financial condition).

Item 4. Mine Safety Disclosures

Not applicable.

Information About Our Executive Officers

The following is a description of the names and ages of the executive officers of the Company, indicating all positions and offices with the Company held by each such person and each person’s principal occupation or employment during the past five years. Each executive officer of Nucor is elected by the Board of Directors and holds office from the date of election until removed by the Board.

Allen C. Behr (50), Executive Vice President of Plate and Structural Products, was named EVP in May 2020. Mr. Behr began his career with Nucor in 1996 as Design Engineer at Nucor Building Systems-Indiana and joined the start-up team at Nucor Building Systems-Texas in 1999. In 2001, he became the

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Engineering Manager at Nucor Building Systems-South Carolina and was promoted to General Manager in 2008. Mr. Behr became the General Manager of Vulcraft-South Carolina in 2011 and was promoted to Vice President in 2012. He was promoted to President of the Vulcraft/Verco group in 2014 and he served as General Manager of Nucor Steel-Texas from 2017 to 2019.

Brad Ford (45), Executive Vice President of Fabricated Construction Products, became EVP in May 2023. Mr. Ford began his career at The David J. Joseph Company (DJJ) in 2001 as a Brokerage Representative and subsequently served as District Manager and International Trading Manager. In 2013, Mr. Ford became Commercial Vice President at DJJ's subsidiary, Trademark Metals Recycling LLC (TMR), and then served as President of TMR from 2015 to 2020. Mr. Ford became General Manager of Vulcraft-Indiana in 2020. He was promoted to Vice President of Nucor in 2022 and most recently served as Vice President and General Manager of Nucor Steel Decatur, LLC.

Noah Hanners (44), Executive Vice President of Raw Materials, became EVP in January 2023. Mr. Hanners began his career with Nucor in 2011 as Melt Shop Engineer at Nucor Steel South Carolina. He next served as Shift Supervisor and was then promoted to Melt Shop Manager at Nucor Steel Auburn, Inc. Mr. Hanners later served as General Manager of Nucor Tubular Products and General Manager of Nucor Steel Kankakee, Inc. and was promoted to Vice President in 2019. He served as the Vice President and General Manager of The David J. Joseph Company from 2019 to 2022.

John Hollatz (48), Executive Vice President of Bar, Engineered Bar, and Rebar Fabrication Products, was named EVP in May 2022. Mr. Hollatz began his career at Nucor in 1999 as Design Engineer at Vulcraft Indiana and then served as Sales Engineer and Sales Manager at Vulcraft Nebraska. Mr. Hollatz later served as General Manager of Nucor Building Systems South Carolina, General Manager of Vulcraft Indiana, and President of the Vulcraft/Verco group. He was promoted to Vice President and General Manager of Nucor Steel Decatur, LLC in 2016.

Douglas J. Jellison (65), Executive Vice President of Strategy, was named EVP in January 2021. Mr. Jellison began his Nucor career in 1990 as Materials Manager at Nucor Bearing Products and has worked in various positions and businesses in his more than 30 years with Nucor, including several controller and business development roles. Mr. Jellison was promoted to Vice President in 2004 and served as General Manager of Nucor Bearing Products, Nucor Steel Seattle, Inc. and Nucor-Yamato. He then served as President of Nucor Tubular Products and most recently as President of Nucor’s steel piling subsidiary, Skyline Steel LLC.

Stephen D. Laxton (53), Chief Financial Officer, Treasurer, and Executive Vice President, became CFO in March 2022. Mr. Laxton began his career at Nucor in 2003 as General Manager of Business Development and was promoted to Vice President in 2014. Prior to joining Nucor, Mr. Laxton worked for Cinergy Corp., holding various positions including Director of Asset Management and Manager of Corporate Development. Prior to Cinergy, he held various financial roles with Ashland, Inc., North American Stainless and National City Bank.

Gregory J. Murphy (60), Executive Vice President of Business Services and General Counsel, was named EVP in January 2021. Mr. Murphy began his Nucor career in 2015 as Vice President and General Counsel. In 2020, he assumed additional responsibilities and was named General Counsel and Vice President of Legal, Environmental and Public Affairs. Prior to joining Nucor, Mr. Murphy was a Partner with the law firm of Moore & Van Allen PLLC, where he was the team leader of the Litigation Practice Group and served for a decade on the firm’s Executive Committee.

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Daniel R. Needham (58), Executive Vice President of Commercial, was named EVP in May 2022. Mr. Needham began his career with Nucor in 2000 as Controller at Nucor Steel Hertford County. He subsequently served as Controller of Nucor Steel Decatur, LLC and Nucor Steel Utah. In 2011, Mr. Needham became General Manager of Nucor Steel Connecticut, Inc. He later served as General Manager of Nucor Steel Utah and was elected Vice President in 2016. In 2019, Mr. Needham was promoted to Vice President and General Manager of Nucor Steel Indiana. He served as the Executive Vice President of Bar, Engineered Bar and Rebar Fabrication Products from February 2021 to May 2022.

K. Rex Query (58), Executive Vice President of Sheet Products and Talent Resources, was named EVP in January 2021. Mr. Query joined Nucor in 1990 as a financial analyst in the Corporate Office and subsequently served as Controller at Vulcraft South Carolina, Nucor Steel Berkeley and Nucor Steel Hertford. After serving as General Manager and Corporate Controller, Mr. Query was elected to Vice President in 2002 and served as General Manager at Nucor Steel Auburn, Inc., Nucor Steel Decatur, LLC, Nucor Steel South Carolina and NCF as well as President of Nucor Europe. Most recently, Mr. Query served as President of Nucor’s Vulcraft/Verco group. Mr. Query is married to the sister of Mr. Topalian’s wife.

David A. Sumoski (57), was named Chief Operating Officer, in January 2021. He previously served as Executive Vice President from 2014 to 2020, most recently as EVP of Merchant and Rebar Products. He also served as General Manager of Nucor Steel Memphis, Inc. from 2012 to 2014 and as General Manager of Nucor Steel Marion, Inc. from 2008 to 2012. Mr. Sumoski was named Vice President in 2010. He began his career with Nucor as an electrical supervisor at Nucor Steel-Berkeley in 1995, later serving as Maintenance Manager.

Leon J. Topalian (55), has served as President and Chief Executive Officer since January 2020 and as Chair of the Board of Directors since September 2022. He previously served as President and Chief Operating Officer from September 2019 to December 2019, as Executive Vice President of Beam and Plate Products from 2017 to 2019 and as Vice President of Nucor from 2013 to 2017. He began his Nucor career at Nucor Steel-Berkeley in 1996, serving as a project engineer and then as cold mill production supervisor. Mr. Topalian was promoted to Operations Manager for Nucor’s former joint venture in Australia and later served as Melting and Casting Manager at Nucor Steel-South Carolina. He then served as General Manager of Nucor Steel Kankakee, Inc. from 2011 to 2014 and as General Manager of Nucor-Yamato from 2014 to 2017. Mr. Topalian is married to the sister of Mr. Query’s wife.

D. Chad Utermark (55), Executive Vice President of New Markets and Innovation, was named EVP in 2014. He previously served as General Manager of Nucor-Yamato from 2011 to 2014 and as General Manager of Nucor Steel-Texas from 2008 to 2011. He was named Vice President of Nucor in 2009. Mr. Utermark began his Nucor career as a utility operator at Nucor Steel-Arkansas in 1992, subsequently serving as shift supervisor and Hot Mill Manager at that division as well as Roll Mill Manager at Nucor Steel-Texas.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock is listed and traded on the New York Stock Exchange under the symbol “NUE.” As of January 31, 2024, there were approximately 11,000 stockholders of record of our common stock.

Our share repurchase program activity for each of the three months and the quarter ended December 31, 2023 was as follows (in thousands, except per share amounts):

	Total Number of Shares Purchased		Average Price Paid per Share (1)		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)		Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs (2)
October 1, 2023—October 28, 2023		—	$	-		—	$	3,499,941
October 29, 2023—November 25, 2023		—	$	-		—	$	3,499,941
November 26, 2023—December 31, 2023		1,000	$	177.18		1,000	$	3,322,765
For the Quarter Ended December 31, 2023		1,000				1,000

(1)Includes commissions of $0.02 per share.

(2)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. The share repurchase authorization is discretionary and has no expiration date.

Nucor has increased its base cash dividend every year since the Company began paying dividends in 1973. Nucor paid a total dividend of $2.04 per share in 2023 compared with $2.00 per share in 2022. In December 2023, the Board of Directors increased the base quarterly cash dividend on Nucor’s common stock to $0.54 per share from $0.51 per share. In February 2024, the Board of Directors declared Nucor’s 204th consecutive quarterly cash dividend of $0.54 per share payable on May 10, 2024 to stockholders of record on March 28, 2024.

See Note 16 to the Company’s consolidated financial statements for a discussion regarding securities authorized for issuance under the Company’s stock-based compensation plans.

The stock performance graph required by Item 201(e) of Regulation S-K is incorporated into this report by reference from the Company's annual report to stockholders for the year ended December 31, 2023, which will be posted to the Company's website and furnished to the SEC subsequent to the date of this report. The stock performance graph shall not be deemed to be "filed" for purposes of Section 18 of the Exchange Act, nor shall it be deemed to be "soliciting material" subject to Regulation 14A or incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 6. [Reserved].

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations of Nucor Corporation should be read in conjunction with the consolidated financial statements of the Company and the accompanying notes to the consolidated financial statements.

Management’s Discussion and Analysis of Financial Condition and Results of Operations included in this report discusses our financial condition and results of operations as of and for the years ended December 31, 2023 and 2022. Information concerning the year ended December 31, 2022 and a comparison of the years ended December 31, 2022 and 2021 may be found under “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 28, 2023.

Overview

The U.S. economy grew at a faster rate in 2023 – 2.5 percent – compared to 1.9 percent the prior year. Steel market demand in 2023 remained strong across many of the end markets we serve, particularly nonresidential construction. Operating rates at our steel mills for the full year 2023 increased slightly to 78% as compared to 77% for the full year 2022.

Legislation passed by Congress is providing more than $1.5 trillion to rebuild traditional infrastructure, build-out clean energy infrastructure and re-shore semiconductor chip manufacturing back to the United States. These steel-intensive projects are expected to create an estimated 5 to 8 million tons of additional annual steel demand in the coming years. Funding from the Infrastructure Investment & Jobs Act (IIJA) is starting to impact the steel market and that impact is expected to last several years. The CHIPS Act has already generated announcements for dozens of new semiconductor ecosystem projects in the U.S. representing more than $200 billion in private investments. Strong Buy America requirements in the IIJA and the Inflation Reduction Act will promote domestically produced steel being used to rebuild U.S. infrastructure and build-out new clean energy infrastructure. More than half of Nucor products are shipped into the construction market, and Nucor’s lower carbon footprint is expected to provide an additional advantage as states and localities look to rebuild infrastructure in a sustainable manner.

Our Challenges and Risks

Global steel production overcapacity continues to be an ongoing risk to Nucor and the entire steel industry, with the OECD estimating that global steel production overcapacity would grow from approximately 550 million metric tons in 2022 to more than 600 million tons in 2023. However, additional capacity continues to come online and China’s steel production, the largest steel producing country, is still near record levels. In 2023, China’s steel production was more than 1 billion tons for the fourth consecutive year. Circumvention of trade duties also continues to pose a risk, as countries route products through third-party countries to evade duties. Increasingly, China is seeking to evade trade duties by building new steelmaking capacity in other countries with a focus on neighboring countries in southeast Asia, as well as Africa.

An uncertainty we continue to face in our business is the price of our principal raw material, ferrous scrap, which is volatile and often increases or decreases rapidly in response to changes in domestic demand, unanticipated events that affect the flow of scrap into scrap yards, the availability of scrap substitutes, currency fluctuations and changes in foreign demand for scrap. In periods of rapidly increasing raw material prices in the industry, which are often also associated with periods of stronger or rapidly improving steel market conditions, being able to increase our prices for the products we sell quickly enough to offset increases in the prices we pay for ferrous scrap is challenging but critical to maintaining our profitability. We attempt to mitigate the scrap price risk by managing scrap inventory levels at the steel mills to match the anticipated demand over the next several weeks. Certain scrap substitutes, including pig iron, have longer lead times for delivery than scrap, which can make this

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inventory management strategy difficult to achieve. Continued successful implementation of our raw material strategy, including key investments in DRI production, coupled with the scrap brokerage and processing services performed by our team at DJJ, give us greater control over our metallic inputs and thus also helps us to mitigate this risk. See "Item 1A. Risk Factors- Industry Specific Risk Factors" for further discussion of raw material risks.

During periods of stronger or rapidly improving steel market conditions, we are more likely to be able to pass through to our customers, relatively quickly, the increased costs of ferrous scrap and scrap substitutes, protecting our gross margins from significant erosion. During periods of weaker or rapidly deteriorating steel market conditions, weak steel demand, low industry utilization rates and the impact of imports create an even more intensified competitive environment and increased pricing pressure. All of those factors, to some degree, impact pricing, which increases the likelihood that Nucor will experience lower gross margins.

Although the majority of our steel sales are to spot market customers in North America who place their orders each month based on their business needs and our pricing competitiveness compared to both domestic and global producers and trading companies, we also sell contract tons, most notably in our sheet operations. Approximately 80% of our sheet sales were to contract customers in 2023 (approximately 85% in 2022), with the balance being sold in the spot market at the prevailing prices at the time of sale. Steel contract sales outside of our sheet operations are not significant. The amount of tons sold to contract customers at any given time depends on the overall market conditions at the time, how the end-use customers see the market moving forward and the strategy that Nucor management believes is appropriate to the upcoming period.

Nucor management considerations include maintaining an appropriate balance of spot and contract tons based on market projections and appropriately supporting our diversified customer base. The percentage of tons that is placed under contract also depends on the overall market dynamics and customer negotiations. In years of strengthening demand, we typically see an increase in the percentage of sheet sales sold under contract as our customers have an expectation that transaction prices will rapidly rise, and available capacity will quickly be sold out. To mitigate this risk, customers prefer to enter into contracts in order to obtain committed volumes of supply from the mills. The vast majority of our contracts include a method of adjusting prices on a periodic basis to reflect changes in the market pricing for steel and/or scrap. Market indices for steel generally trend with scrap pricing changes, but, during periods of steel market weakness, the more intensified competitive steel market environment can cause the sales price indices to decrease resulting in reduced gross margins and profitability. Furthermore, since the selling price adjustments are not immediate, there will always be a timing difference between changes in the prices we pay for raw materials and the adjustments we make to our contract selling prices. Contract sales typically have terms ranging from six to 12 months.

Our Strengths and Opportunities

We are North America’s most diversified steel producer. As a result, our short-term performance is not tied to any one market. We have numerous, large, strategic capital projects at various stages of progress that we believe will help us further diversify our product offerings and expand the markets that we serve. We expect these investments to grow our long-term earnings power by increasing our channels to market, expanding our product portfolio into higher value-added offerings, improving our cost structure and further building upon our market leadership positions.

We believe that Nucor’s raw material supply chain is another important strength. Our investment in DRI production facilities and scrap brokerage and processing businesses provides Nucor with significant flexibility in optimizing our raw materials costs. Additionally, having a portion of our raw materials supply under our control reduces risk associated with the global sourcing of raw materials.

Our highly variable, low-cost structure, combined with our financial strength and liquidity, have allowed us to successfully navigate cyclical steel industry market conditions in the past. In such times, our incentive-based pay system reduces our payroll costs, both hourly and salary, which helps to offset lower

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selling prices. Our pay-for-performance system that is closely tied to our levels of production also allows us to keep our highly experienced workforce intact and to continue operating our facilities when some of our competitors with greater fixed costs are forced to shut down some of their facilities. Because we use EAFs to produce our steel, we can easily vary our production levels to match short-term changes in demand.

Evaluating Our Operating Performance

We report our results of operations in three segments: steel mills, steel products and raw materials. Most of the steel we produce in our mills is sold to outside customers (80% in 2023 and 78% in 2022), but a significant percentage is used internally by many of the facilities in our steel products segment (20% in 2023 and 22% in 2022).

We begin measuring our performance by comparing our net sales, both in total and by individual segment, during a reporting period with our net sales in the corresponding period in the prior year. In doing so, we focus on changes in and the reasons for such changes in the two key variables that have the greatest influence on our net sales: average sales price per ton during the period and total tons shipped to outside customers.

We also focus on both dollar and percentage changes in gross margins, which are key drivers of our profitability, and the reasons for such changes. There are many factors from period to period that can affect our gross margins. One consistent area of focus for us is changes in “metal margins,” which is the difference between the selling price of steel and the cost of scrap and scrap substitutes. Increases or decreases in the cost of scrap and scrap substitutes that are not offset by changes in the selling price of steel can quickly compress or expand our margins and reduce or increase our profitability.

Changes in marketing, administrative and other expenses, particularly profit sharing and other variable incentive-based payment costs, can have a material effect on our results of operations for a reporting period as well. These costs vary significantly from period to period as they are based upon changes in our pre-tax earnings and other profitability metrics that are a reflection of our pay-for-performance system that is closely tied to our levels of production.

Evaluating Our Financial Condition

We evaluate our financial condition each reporting period by focusing primarily on the amounts of and reasons for changes in cash provided by operating activities, our current ratio, the turnover rate of our accounts receivable and inventories, the amounts of and reasons for changes in cash used in or provided by investing activities (including projected capital expenditures) and financing activities and our cash and cash equivalents and short-term investments position at period end. We believe that our conservative financial practices have served us well in the past and are serving us well today. As a result, we believe our financial position remains strong.

Comparison of 2023 to 2022

Results of Operations

Nucor reported consolidated net earnings of $4.52 billion, or $18.00 per diluted share, in 2023, which decreased compared to $7.61 billion, or $28.79 per diluted share, in 2022, the latter of which was the most profitable year in the Company’s history. Though decreased from the prior year, 2023 represented the third most profitable year in Nucor’s history.

The primary driver for the decrease in earnings in 2023 as compared to 2022 was the decreased profitability of the steel mills segment. Metal margin in the steel mills segment decreased significantly in 2023 as compared to 2022, as decreases in average selling prices outpaced decreases in scrap and substitute costs. All product groups within the steel mills segment had lower metal margin in 2023 as compared to 2022, with the largest decrease at our sheet mills.

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Earnings of the steel products segment decreased in 2023 following a record-setting year for profitability in 2022. Average selling prices and volumes both decreased for the steel products segment in 2023 as compared to 2022. The primary driver for the decreased earnings of the steel products segment in 2023 was the reduced profitability of the joist and deck businesses, both of which had very strong earnings in 2022. Partially offsetting these decreases were increases in profitability at the segment's rebar fabrication, garage doors, insulated metal panels and tubular products businesses in 2023 as compared to 2022. The Company's rebar fabrication business set a new record for profitability in 2023.

Earnings in the raw materials segment decreased in 2023 as compared to 2022 primarily due to decreased earnings at our DRI facilities and scrap processing operations. Included in the earnings of the raw materials segment in 2022 was the $96.0 million write-off of our leasehold interest in unproved oil and gas properties after the Company’s management determined that it was unlikely to develop the leasehold interests in the future.

The following discussion will provide greater quantitative and qualitative analysis of Nucor’s performance in 2023 as compared to 2022.

Net Sales

Net sales to external customers by segment for the years ended December 31, 2023 and 2022 were as follows (in thousands):

	Year Ended December 31,
	2023		2022		% Change
Steel mills	$	20,092,662	$	24,189,858		-17	%
Steel products		12,758,939		15,060,328		-15	%
Raw materials		1,861,900		2,262,281		-18	%
Total net sales to external customers	$	34,713,501	$	41,512,467		-16	%

Net sales for 2023 decreased 16% from the prior year. Average sales price per ton decreased 15% from $1,626 in 2022 to $1,377 in 2023. Total tons shipped to outside customers decreased 1% from 25,524,000 tons in 2022 to 25,205,000 tons in 2023.

In the steel mills segment, sales tons for the years ended December 31, 2023 and 2022 were as follows (in thousands):

	Year Ended December 31,
	2023		2022		% Change
Outside steel shipments		18,552		18,200		2	%
Inside steel shipments		4,721		5,041		-6	%
Total steel shipments		23,273		23,241	-

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Net sales for the steel mills segment decreased 17% in 2023 compared to the prior year due to an 18% decrease in the average sales price per ton, from $1,324 in 2022 to $1,084 in 2023, partially offset by a 2% increase in tons sold to outside customers. Average selling prices for our sheet, bar, structural, and plate mills decreased in 2023 as compared to 2022.

Outside sales tonnage for the steel products segment for the years ended December 31, 2023 and 2022 was as follows (in thousands):

	Year Ended December 31,
	2023		2022		% Change
Joist sales		510		671		-24	%
Deck sales		401		515		-22	%
Cold finished sales		428		467		-8	%
Rebar fabrication sales		1,169		1,282		-9	%
Piling products sales		433		443		-2	%
Tubular products sales		949		950	-
Other steel products sales		596		687		-13	%
Total steel products sales		4,486		5,015		-11	%

Net sales for the steel products segment decreased 15% in 2023 from the prior year due to a 5% decrease in the average sales price per ton, from $3,003 in 2022 to $2,845 in 2023, as well as an 11% decrease in volumes.

Net sales for the raw materials segment decreased 18% in 2023 from the prior year, primarily due to decreased volumes and average sales prices at DJJ’s brokerage and scrap processing operations. In 2023, approximately 92% of outside sales for the raw materials segment were from the brokerage operations of DJJ, and approximately 4% of outside sales were from the scrap processing operations of DJJ (91% and 3%, respectively, in 2022).

Gross Margins

In 2023, Nucor recorded gross margins of $7.81 billion (23%), which was a decrease from $12.50 billion (30%) in 2022:

•The primary driver for the decrease in gross margins in 2023 as compared to 2022 was the decrease in metal margins in the steel mills, primarily due to lower metal margins per ton and decreases in average selling prices outpacing decreases in scrap costs.

The average scrap and scrap substitute cost per gross ton used decreased 14% from $492 in 2022 to $421 in 2023. Scrap prices are driven by the global supply and demand for scrap and other iron-based raw materials used to make steel. Scrap prices are stable as we begin 2024.

•Pre-operating and start-up costs of new facilities increased to approximately $400 million in 2023 as compared to approximately $247 million in 2022. Pre-operating and start-up costs in 2023 primarily related to the plate mill built in Kentucky, the sheet mill being built in West Virginia, and the micro mill being built in North Carolina. Pre-operating and start-up costs in 2022 primarily related to the plate mill then being built in Kentucky, the sheet mill expansion in Kentucky, and the galvanizing line at our sheet mill in Arkansas. Nucor defines pre-operating and start-up costs, all of which are expensed, as the losses attributable to facilities or major projects that are either under construction or in the early stages of operation. Once these facilities or projects have attained a utilization rate that is consistent with our similar operating facilities, they are no longer considered by Nucor to be in start-up.

•Gross margins in the steel products segment decreased in 2023 as compared to 2022 primarily due to moderating prices and margin compression at our joist and deck facilities.

•Gross margins in the raw materials segment decreased significantly in 2023 as compared to 2022 due to the decreased profitability of our scrap brokerage and recycling operations.

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Marketing, Administrative and Other Expenses

A major component of marketing, administrative and other expenses is profit sharing and other incentive compensation costs. These costs, which are based upon and fluctuate with Nucor’s financial performance, decreased from 2022 to 2023 due to the decreased profitability of the Company. In 2023, profit sharing costs consisted of $611.1 million, including the Company’s matching contribution, made to the Company’s Profit Sharing and Retirement Savings Plan for qualified employees ($994.2 million in 2022). Other employee bonus costs also fluctuate based on Nucor’s achievement of certain financial performance goals, including achieving record earnings, and comparisons of Nucor’s financial performance to peers in the steel industry and other companies. Stock-based compensation included in marketing, administrative and other expenses decreased by 8% to $54.1 million in 2023 compared with $58.8 million in 2022 and includes expenses associated with vesting of stock awards granted in prior years.

Equity in Earnings of Unconsolidated Affiliates

Equity in earnings of unconsolidated affiliates was $12.8 million in 2023 and $10.7 million in 2022. The increase in equity method investment earnings from 2022 to 2023 was primarily due to decreased losses at NJSM. In October 2023, Nucor purchased an additional 1% interest in NJSM, bringing our investment in NJSM to a 51% controlling interest. Beginning in the fourth quarter of 2023, Nucor has accounted for NJSM on a consolidated basis.

Losses and Impairments of Assets

During 2022, Nucor recorded a non-cash loss on assets of $96.0 million related to our leasehold interest in unproved oil and natural gas properties in the raw materials segment and an impairment charge of $5.8 million related to machinery and equipment in the steel products segment.

Interest Expense (Income)

Net interest expense (income) for the years ended December 31, 2023 and 2022 was as follows (in thousands):

	Year Ended December 31,
	2023			2022
Interest expense	$	245,954		$	218,911
Interest income		(275,586	)		(48,695	)
Interest expense, net	$	(29,632	)	$	170,216

Interest expense increased in 2023 compared to 2022 due to higher average interest rates on debt and an increase in average debt outstanding. Interest income increased in 2023 compared to 2022 due to an increase in average interest rates on investments and higher average investments.

Earnings Before Income Taxes and Noncontrolling Interests

The following table presents earnings before income taxes and noncontrolling interests by segment for the years ended December 31, 2023 and 2022 (in thousands). The changes between periods were driven by the quantitative and qualitative factors previously discussed.

	Year Ended December 31,
	2023			2022
Steel mills	$	3,712,470		$	7,199,087
Steel products		3,443,950			4,093,105
Raw materials		253,506			496,823
Corporate/eliminations		(1,137,169	)		(1,544,171	)
Earnings before income taxes and noncontrolling interests	$	6,272,757		$	10,244,844

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Noncontrolling Interests

Noncontrolling interests represent the income attributable to the noncontrolling partners of Nucor’s joint ventures, NYS, CSI and NJSM. Nucor owns a 51% controlling interest in each of NYS, CSI and NJSM. The decrease in earnings attributable to noncontrolling interests in 2023 as compared to 2022 was due to the decreased earnings of NYS and CSI. Furthermore, the decrease in earnings attributable to noncontrolling interests is due to the losses of NJSM, for which results were consolidated beginning in the fourth quarter of 2023 following Nucor's purchase of an additional 1% interest in NJSM to bring the total investment to a 51% controlling interest.

Provision for Income Taxes

The Company’s effective tax rate in 2023 was 21.68% compared with 21.13% in 2022. The 2023 effective tax rate includes an increased impact, when compared to 2022, related to 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 2022 effective tax rate included a net tax benefit of $76.4 million (-0.75%) for state tax credits, and a net tax benefit of $88.0 million (-0.86%) related to a change in the valuation allowance of a state deferred tax asset.

The Internal Revenue Service (“IRS”) is currently examining Nucor’s 2015, 2019, and 2020 federal income tax returns. Nucor has concluded U.S. federal income tax matters for 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 Harris 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).

Net Earnings and Return on Equity

Nucor reported net earnings of $4.52 billion, or $18.00 per diluted share, in 2023, compared to net earnings of $7.61 billion, or $28.79 per diluted share, in 2022. Net earnings attributable to Nucor stockholders as a percentage of net sales were 13.0% and 18.3% in 2023 and 2022, respectively. Return on average stockholders’ equity was 23.0% and 46.9% in 2023 and 2022, respectively.

Liquidity and Capital Resources

We believe our financial strength is a key strategic advantage, particularly during recessionary business cycles. We carry the highest credit ratings of any steel producer headquartered in North America, with an A- long-term rating from Standard and Poor’s, a Baa1 long-term rating from Moody’s and an A- long-term rating from Fitch. Our credit ratings are dependent, however, on many factors, both qualitative and quantitative, and are subject to change at any time. The disclosure of our credit ratings is made to enhance investors’ understanding of our sources of liquidity and the impact of our credit ratings on our cost of funds.

Nucor’s cash and cash equivalents, short-term investments and restricted cash and cash equivalents position remained strong at $7.13 billion as of December 31, 2023, compared with $4.94 billion as of December 31, 2022. Approximately $1.05 billion and $1.04 billion of the cash and cash equivalents position as of December 31, 2023 and 2022, respectively, was held by our majority-owned joint ventures. Cash flows provided by operating activities provide us with a significant source of liquidity. When needed, we have external short-term financing sources available, including the issuance of commercial paper and borrowings under our bank credit facilities.

We also issue long-term debt securities from time-to-time. On March 11, 2022, Nucor completed the issuance and sale of $550.0 million aggregate principal amount of its 3.125% Notes due 2032 (the “2032

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Notes”) and $550.0 million aggregate principal amount of its 3.850% Notes due 2052 (the “2052 Notes” and, together with the 2032 Notes, the “2032/2052 Notes”). The net proceeds from the issuance and sale of the 2032/2052 Notes were used along with cash on hand to redeem all of the outstanding $600.0 million aggregate principal amount of our 4.125% Notes due 2022 (the “2022 Notes”) and $500.0 million aggregate principal amount of our 4.000% Notes due 2023 (the “2023 Notes”) pursuant to the terms of the indenture governing the 2022 Notes and the 2023 Notes.

On April 25, 2022, Nucor redeemed all $500.0 million aggregate principal amount outstanding of the 2023 Notes using a portion of the net proceeds from the issuance and sale of the 2032/2052 Notes. On August 15, 2022, Nucor redeemed all $600.0 million aggregate principal amount outstanding of the 2022 Notes using the remaining portion of the net proceeds from the issuance and sale of the 2032/2052 Notes.

On May 23, 2022, Nucor completed the issuance and sale of $500.0 million aggregate principal amount of its 3.950% Notes due 2025 (the “2025 Notes”) and $500.0 million aggregate principal amount of its 4.300% Notes due 2027 (the “2027 Notes”).

We expect to continue to have adequate access to the capital markets at a reasonable cost of funds for liquidity purposes when needed.

Selected Measures of Liquidity and Capital Resources

	(Dollars in thousands)
	December 31,
	2023		2022
Cash and cash equivalents	$	6,383,298	$	4,280,852
Short-term investments		747,479		576,946
Restricted cash and cash equivalents		3,494		80,368
Working capital		11,791,349		10,361,940
Current ratio		3.6		3.4

The current ratio, which is calculated by dividing current assets by current liabilities, was 3.6 at year-end 2023 compared with 3.4 at year-end 2022. The current ratio was impacted by higher cash and cash equivalents at December 31, 2023.

In 2023, total accounts receivable turned approximately every five weeks and inventories turned approximately every 11 weeks. These ratios compare with accounts receivable turnover of approximately every five weeks and inventory turnover of approximately every 10 weeks for 2022.

Funds provided by operations, cash and cash equivalents, short-term investments, restricted cash and cash equivalents and new borrowings under existing credit facilities are expected to be adequate to meet future capital expenditures, current debt maturities and working capital requirements for existing operations for at least the next 24 months. We also believe we have adequate access to capital markets for liquidity purposes.

Off-Balance Sheet Arrangements

We have a simple capital structure with no off-balance sheet arrangements or relationships with unconsolidated special purpose entities that we believe could have a material impact on our financial condition or liquidity.

Capital Allocation Strategy

We believe that our conservative financial practices have served us well in the past and are serving us well today. Nucor’s financial strength allows for a consistent, balanced approach to capital allocation

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throughout the business cycle. Nucor’s highest capital allocation priority is to invest in our business for profitable growth over the long term. We have historically done this by investing to optimize our existing operations, initiate greenfield expansions and make acquisitions. Our second priority is to return capital to our stockholders through cash dividends and share repurchases. We intend to return a minimum of 40% of our net earnings to our stockholders through dividends and share repurchases, while maintaining a debt-to-capital ratio that supports a strong investment grade credit rating. Nucor returned approximately $2.07 billion in capital to its stockholders in the form of base dividends and share repurchases in 2023.

Our cash flows for each period were as follows:

	(Dollars in thousands)
	December 31,
	2023			2022
Net cash provided by operating activities	$	7,111,931		$	10,072,054
Net cash used in investing activities		(2,496,431	)		(5,702,709	)
Net cash used in financing activities		(2,592,811	)		(2,510,863	)
Effect of exchange rate changes on cash		2,883			(5,920	)
Net increase in cash and cash equivalents and restricted cash and cash equivalents	$	2,025,572		$	1,852,562

Operating Activities

For 2023 compared to 2022, the $3.0 billion decrease in cash provided by operating activities was primarily driven by a decrease in net earnings and changes in operating assets and liabilities. Net earnings decreased $3.2 billion over the prior year, which included $101.8 million of non-cash losses and impairments of assets in 2022 (none in 2023). The changes in operating assets and liabilities resulted in a net inflow of $858.4 million and $692.7 million in 2023 and 2022, respectively. The changes in working capital were primarily due to a decrease in accounts receivable and increase in inventories from year-end 2022 to year-end 2023. Accounts receivable at the end of 2023 decreased from the prior year-end resulting in a cash inflow of $663.8 million due to a decrease in the sales volumes and price per ton compared to the same prior year period. From year-end 2022 to year-end 2023, inventories increased resulting in an outflow of $75.0 million due to a 10% increase in inventory tons. This compares to inventories at year-end 2022 decreasing from year-end 2021 and resulting in a $962.4 million cash inflow. Salaries, wages and related accruals decreased due to lower current year profit sharing accrual. The decrease in federal income taxes receivable is mainly a function of the timing of federal tax payments. Accounts payable increased due to the increases in inventory mentioned previously.

Investing Activities

Our business is capital intensive; therefore, cash used in investing activities primarily represents capital expenditures for the construction of new facilities, the expansion and upgrading of existing facilities and the acquisition of other companies. The $3.2 billion decrease in cash used in investing activities was primarily due to $70.8 million used in 2023 to fund acquisitions compared to $3.55 billion used to fund acquisitions in 2022, including, primarily the purchase of CHI in June 2022 and the purchase of a 51% controlling ownership in CSI in February 2022. Cash used for capital expenditures increased by $266.3 million to $2.2 billion in 2023 as compared to $1.95 billion in 2022. The increase in capital expenditures is primarily due to the plate mill in Kentucky, the sheet mill expansion in Indiana and the sheet mill under construction in West Virginia. Capital expenditures for 2024 are estimated to be approximately $3.5 billion as compared to actual expenditures of approximately $2.2 billion in 2023. The projects that we anticipate will have the largest capital expenditures in 2024 are the sheet mill expansion in Indiana, the sheet mill under construction in West Virginia, the rebar micro mill under construction in North Carolina and the construction of two manufacturing locations to expand NTS.

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Financing Activities

The primary uses of cash were: (i) stock repurchases of $1.6 billion in 2023 as compared to $2.76 billion in 2022, a decrease of $1.2 billion; (ii) repayments of long-term debt of $10 million in 2023 as compared to $1.11 billion in 2022; and (iii) distributions to noncontrolling interests of $435.0 million in 2023 as compared to $332.3 million in 2022, an increase of $102.8 million. The primary source of cash offsetting these uses of cash was proceeds from long-term debt, net of discount to the public, of $2.09 billion in 2022 (none in 2023). In 2022, Nucor issued $500.0 million aggregate principal amount of the 2025 Notes, $500.0 million aggregate principal amount of the 2027 Notes, $550.0 million aggregate principal amount of the 2032 Notes and $550.0 million aggregate principal amount of the 2052 Notes. On April 25, 2022, Nucor redeemed all $500.0 million aggregate principal amount outstanding of the 2023 Notes. On August 15, 2022, Nucor redeemed all $600.0 million aggregate principal amount outstanding of the 2022 Notes.

Our $1.75 billion revolving credit facility is undrawn and has a maturity date of November 5, 2026. The revolving credit facility includes only one financial covenant, which is a limit of 60% on the ratio of funded debt to total capital. In addition, the undrawn revolving credit facility contains customary non-financial covenants, including a limit on Nucor’s ability to pledge the Company’s assets and a limit on consolidations, mergers and sales of assets. As of December 31, 2023, Nucor’s funded debt to total capital ratio was 24%, and Nucor was in compliance with all covenants under the credit facility.

Market Risk

Nucor’s largest exposure to market risk is in our steel mills and steel products segments. Our utilization rates for the steel mills and steel products facilities for the fourth quarter of 2023 were 74% and 58%, respectively. A significant portion of our steel mills and steel products segments’ sales are into the commercial, industrial and municipal construction markets. Our largest single customer in 2023 represented approximately 5% of sales and consistently pays within terms. In the raw materials segment, we are exposed to price fluctuations related to the purchase of scrap steel, pig iron and iron ore. Our exposure to market risk is mitigated by the fact that our steel mills use a significant portion of the products of this segment and the prices we receive for our steel and steel products tend to be correlated with the prices we pay for these materials.

Nucor’s tax-exempt industrial development revenue bonds (“IDRBs”) have variable interest rates that are typically adjusted weekly. These IDRBs represented 20% of Nucor’s long-term debt outstanding at December 31, 2023. The remaining 80% of Nucor’s long-term debt is at fixed rates. Future changes in interest rates are not expected to significantly impact earnings. From time to time, Nucor makes use of interest rate swaps to manage interest rate risk. As of December 31, 2023, there were no such contracts outstanding. Nucor’s investment practice is to invest in securities that are highly liquid with short maturities. As a result, we do not expect changes in interest rates to have a significant impact on the value of our investment securities recorded as short-term investments.

Nucor also uses derivative financial instruments from time to time to partially manage its exposure to price risk related to purchases of natural gas used in the production process, as well as scrap, copper and aluminum purchased for resale to its customers. In addition, Nucor uses forward foreign exchange contracts from time to time to hedge cash flows associated with certain assets and liabilities, firm commitments and anticipated transactions. Nucor generally does not enter into derivative instruments for any purpose other than hedging the cash flows associated with specific volumes of commodities that will be purchased, processed or sold in future periods or hedging the exposures related to changes in the fair value of outstanding fixed-rate debt instruments and foreign currency transactions. Nucor recognizes all derivative instruments in the consolidated balance sheets at fair value.

The Company is exposed to foreign currency risk primarily through its operations in Canada, Europe and Mexico. We periodically use derivative contracts to mitigate the risk of currency fluctuations.

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Dividends

Nucor has increased its base cash dividend every year since it began paying dividends in 1973. Nucor paid aggregate dividends of $2.04 per share in 2023, compared with aggregate dividends of $2.00 per share in 2022. In December 2023, the Board of Directors increased the regular quarterly cash dividend on Nucor’s common stock to $0.54 per share. Nucor returned approximately $2.06 billion in capital to its stockholders in the form of base dividends and share repurchases in 2023. In February 2024, the Board of Directors declared Nucor’s 204th consecutive quarterly cash dividend of $0.54 per share payable on May 10, 2024 to stockholders of record as of March 28, 2024.

Contractual Obligations and Other Commercial Commitments

The following table sets forth our contractual obligations and other commercial commitments as of December 31, 2023 for the periods presented (in thousands):

	Payments Due By Period
Contractual Obligations	Total		2024		2025-2026		2027-2028		2029 and thereafter
Long-term debt	$	6,737,725	$	60,000	$	1,071,500	$	1,078,000	$	4,528,225
Estimated interest on long-term    debt (1)		3,782,754		265,449		475,190		407,985		2,634,130
Finance leases		266,677		23,466		42,562		39,952		160,697
Operating leases		142,263		32,987		45,406		28,272		35,598
Raw material purchase    commitments (2)		3,632,400		1,232,322		1,103,586		847,428		449,064
Utility purchase commitments (2)		1,188,652		381,330		371,063		325,906		110,353
Other unconditional purchase    obligations (3)		2,306,944		1,701,792		599,733		3,453		1,966
Other long-term obligations (4)		797,819		482,827		95,339		10,821		208,832
Total contractual obligations	$	18,855,234	$	4,180,173	$	3,804,379	$	2,741,817	$	8,128,865

(1)Interest is estimated using applicable rates at December 31, 2023 for Nucor’s outstanding fixed-rate and variable-rate debt.

(2)Nucor enters into contracts for the purchase of scrap and scrap substitutes, iron ore, electricity, natural gas, and other raw materials and related services. These contracts include multi-year commitments and minimum annual purchase requirements and are valued at prices in effect on December 31, 2023, or according to the contract language. These contracts are part of normal operations and are reflected in historical operating cash flow trends. We do not believe such commitments will adversely affect our liquidity position.

(3)Purchase obligations include commitments for capital expenditures on operating machinery and equipment.

(4)Other long-term obligations include amounts associated with Nucor’s early-retiree medical benefits, management compensation and guarantees.

Note: In addition to the amounts shown in the table above, $188.3 million of unrecognized tax benefits have been recorded as liabilities, and we are uncertain as to if or when such amounts may be settled. Related to these unrecognized tax benefits, we have also recorded a liability for potential penalties and interest of $37.4 million at December 31, 2023.

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Outlook

We expect earnings in the first quarter of 2024 to increase compared to the fourth quarter of 2023. Profitability in the steel mills segment is expected to increase in the first quarter of 2024 as compared to the fourth quarter of 2023 due to higher average prices and volumes, particularly at our sheet mills.

Earnings in the steel products segment are expected to decrease in the first quarter of 2024 due to lower average selling prices.

We expect increased earnings in the raw materials segment in the first quarter of 2024, due to increased profitability at our DRI facilities and scrap processing and brokerage operations.

Capital deployment is expected to increase in 2024 with planned capital expenditures of approximately $3.5 billion, continued evaluation of acquisitions, and share repurchases expected to outpace 2023. As we have in the past, we intend to allocate capital to investments that advance our strategy to grow the core and expand beyond, with the goal of keeping Nucor in a position of strength well into the future.

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations are based upon our consolidated financial statements, which have been prepared in conformity with generally accepted accounting principles in the United States of America. The preparation of these consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at year end and the reported amount of revenues and expenses during the year. On an ongoing basis, we evaluate our estimates, including those related to the valuation allowances for receivables, the carrying value of non-current assets and reserves for environmental obligations and income taxes. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Accordingly, actual costs could differ materially from these estimates under different assumptions or conditions. We believe the following critical accounting policies affect our significant judgments and estimates used in the preparation of our consolidated financial statements.

Inventories

Inventories are stated at the lower of cost or net realizable value. The Company records any amount required to reduce the carrying value of inventory to net realizable value as a charge to cost of products sold. Scrap and scrap substitute costs are a very significant component of the raw material, semi-finished and finished product inventory balances. The vast majority of the Company’s inventory is recorded on the first-in, first-out method. Production costs are applied to semi-finished and finished product inventory from the approximate period in which they are produced.

Long-Lived Asset Impairments

We evaluate our property, plant and equipment and finite-lived intangible assets for potential impairment on an individual asset basis or at the lowest level asset grouping for which cash flows can be independently identified. Asset impairments are assessed whenever circumstances indicate that the carrying amounts of those productive assets could exceed their projected undiscounted cash flows. In developing estimated values for assets that we currently use in our operations, we utilize judgments and assumptions of future undiscounted cash flows that the assets will produce. When it is determined that an impairment exists, the related assets are written down to estimated fair market value. Management determined that no long-lived asset impairment testing was required in 2023 and 2022.

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Raw Materials Segment Asset Impairments

In the second quarter of 2021, Nucor decided that it would not develop a portion of its unproved oil and natural gas properties (“Portion A”) within the contractually specified time period related to Portion A. As a result of this decision, the Company forfeited its leasehold rights for Portion A. The Company recorded a charge of $42.0 million to write off the value of Portion A that is included in losses and impairments of assets in the consolidated statement of earnings for the year ended December 31, 2021. The decision not to develop Portion A was heavily influenced by the approaching deadline to commence development combined with Portion A’s expected near-term profitability not achieving management’s desired returns relative to the cost of development. A significant portion of the Company’s remaining leasehold interest in unproved oil and natural gas properties are held by production. In the fourth quarter of 2022, the Company's management determined that it was unlikely to develop the leasehold interest in unproved oil and gas properties. The carrying value of the remaining portions of unproved oil and natural gas properties of $96.0 million was written off and is included in losses and impairments of assets in the consolidated statement of earnings for the year ended at December 31, 2022.

Goodwill and Intangibles

Goodwill is tested annually for impairment and whenever events or circumstances change that would make it more likely than not that an impairment may have occurred. We perform our annual impairment analysis as of the first day of the fourth quarter each year. The evaluation of impairment involves comparing the current estimated fair value of each reporting unit to the recorded value, including goodwill.

When appropriate, Nucor performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. For certain reporting units, it is necessary to perform a quantitative analysis. In these instances, a discounted cash flow model is used to determine the current estimated fair value of these reporting units. Significant assumptions used to determine the fair value of each reporting unit as part of our annual testing (and any required interim testing) include: (i) expected cash flow for the five-year period following the testing date (including market share, sales volumes and prices, raw materials and other costs to produce and estimated capital needs); (ii) an estimated terminal value using a terminal year growth rate determined based on the growth prospects of the reporting unit; (iii) a discount rate based on management’s best estimate of the after-tax weighted-average cost of capital; and (iv) a probability-weighted scenario approach by which varying cash flows are assigned to certain scenarios based on the likelihood of occurrence. Management considers historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all available information at the time the fair values of its reporting units are estimated. Those estimates and judgments may or may not ultimately prove appropriate.

Our fourth quarter 2023 annual goodwill impairment analysis did not result in an impairment charge. Management does not believe that future impairment of these reporting units is probable. However, the performance of certain businesses that comprise our reporting units requires continued improvement. An increase of approximately 50 basis points in the discount rate, a critical assumption in which a minor change can have a significant impact on the estimated fair value, would not result in an impairment charge. See Note 8 to the Company’s consolidated financial statements for further discussion of the results of the Company’s 2023 annual goodwill impairment analysis.

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Nucor will continue to monitor operating results within all reporting units throughout 2024 in an effort to determine if events and circumstances require further interim impairment testing. Otherwise, all reporting units will again be subject to the required annual qualitative and/or quantitative impairment test during our fourth quarter of 2024. Changes in the judgments and estimates underlying our analysis of goodwill for possible impairment, including expected future operating cash flows and discount rate, could decrease the estimated fair value of our reporting units in the future and could result in an impairment of goodwill.

Equity Method Investments

Investments in joint ventures in which Nucor shares control over the financial and operating decisions but in which Nucor is not the primary beneficiary are accounted for under the equity method. Each of the Company’s equity method investments is subject to a review for impairment if, and when, circumstances indicate that a decline in value below its carrying amount may have occurred. Examples of such circumstances include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee; missed financial projections; a significant adverse change in the regulatory, tax, economic or technological environment of the investee; a significant adverse change in the general market condition of either the geographic area or the industry in which the investee operates; and recurring negative cash flows from operations. When management considers the decline to be other than temporary, the Company would write down the related investment to its estimated fair market value. An other-than-temporary decline in carrying value is determined to have occurred when, in management’s judgment, a decline in fair value below carrying value is of such length of time and/or severity that it is considered long-term.

In the event that an impairment review is necessary, we calculate the estimated fair value of our equity method investments using a probability-weighted multiple-scenario income approach. Management’s analysis includes three discounted cash flow scenarios (best case, base case and recessionary case), which contain forecasted near-term cash flows under each scenario. Generally, (i) the best case scenario contains estimates of future results ranging from slightly higher than recent operating performance to levels that are consistent with historical operating and financial performance; (ii) the base case scenario contains estimates of future results ranging from generally in line with recent operating performance to levels that are more conservative than historical operating and financial performance; and (iii) the recessionary case scenario contains estimates of future results which include limited growth resulting only from operational cost improvements and limited benefits of new higher-value product offerings. Management determines the probability that each cash flow scenario will come to fruition based on the specific facts and circumstances of each of the preceding scenarios, with the base case typically receiving the majority of the weighting.

Key assumptions used to determine the fair value of our equity method investments include: (i) expected cash flow for the five-year period following the testing date (including market share, sales volumes and prices, raw materials and other costs to produce and estimated capital needs); (ii) an estimated terminal value using a terminal year growth rate determined based on the growth prospects of the investment; (iii) a discount rate based on management’s best estimate of the after-tax weighted-average cost of capital; and (iv) a probability-weighted scenario approach by which varying cash flows are assigned to certain scenarios based on the likelihood of occurrence. Management considers historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all available information at the time the fair values of its investments are estimated. Those estimates and judgments may or may not ultimately prove appropriate.

Nucor reviews its equity method investments for impairment if and when circumstances indicate that a decline in fair value below their carrying amounts may have occurred. There were no triggering events that caused management to pursue additional testing of our equity method investments in 2023.

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Income Taxes

We utilize the liability method of accounting for income taxes. Under the liability method, deferred taxes are determined based on the temporary differences between the financial statement and tax basis of assets and liabilities using tax rates expected to be in effect during the years in which the basis differences reverse. A valuation allowance is recorded when it is more likely than not that some of the deferred tax assets will not be realized. We recognize the effect of income tax positions only if those positions are more likely than not of being sustained. Potential accrued interest and penalties related to unrecognized tax benefits within operations are recognized as a component of interest expense and other expenses.

Cautionary Note Regarding Forward-Looking Statements

Certain statements made in this report, or in other public filings, press releases, or other written or oral communications made by Nucor, which are not historical facts are forward-looking statements subject to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements involve risks and uncertainties which we expect will or may occur in the future and may impact our business, financial condition and results of operations. The words “anticipate,” “believe,” “expect,” “intend,” “project,” “may,” “will,” “should,” “could” and similar expressions are intended to identify those forward-looking statements. These forward-looking statements reflect the Company’s best judgment based on current information, and, although we base these statements on circumstances that we believe to be reasonable when made, there can be no assurance that future events will not affect the accuracy of such forward-looking information. As such, the forward-looking statements are not guarantees of future performance, and actual results may vary materially from the projected results and expectations discussed in this report. Factors that might cause the Company’s actual results to differ materially from those anticipated in forward-looking statements include, but are not limited to: (1) competitive pressure on sales and pricing, including pressure from imports and substitute materials; (2) U.S. and foreign trade policies affecting steel imports or exports; (3) the sensitivity of the results of our operations to general market conditions, and in particular, prevailing market steel prices and changes in the supply and cost of raw materials, including pig iron, iron ore and scrap steel; (4) the availability and cost of electricity and natural gas which could negatively affect our cost of steel production or result in a delay or cancellation of existing or future drilling within our natural gas drilling programs; (5) critical equipment failures and business interruptions; (6) market demand for steel products, which, in the case of many of our products, is driven by the level of nonresidential construction activity in the United States; (7) impairment in the recorded value of inventory, equity investments, fixed assets, goodwill or other long-lived assets; (8) uncertainties and volatility surrounding the global economy, including excess world capacity for steel production, inflation and interest rate changes; (9) fluctuations in currency conversion rates; (10) significant changes in laws or government regulations affecting environmental compliance, including legislation and regulations that result in greater regulation of greenhouse gas emissions that could increase our energy costs, capital expenditures and operating costs or cause one or more of our permits to be revoked or make it more difficult to obtain permit modifications; (11) the cyclical nature of the steel industry; (12) capital investments and their impact on our performance; (13) our safety performance; (14) our ability to integrate businesses we acquire; (15) the impact of the COVID-19 pandemic, any variants of the virus, and any other similar pandemic or public health situation; and (16) the risks discussed in “Item 1A. Risk Factors” of this report.

Caution should be taken not to place undue reliance on the forward-looking statements included in this report. We assume no obligation to update any forward-looking statements except as may be required by law. In evaluating forward-looking statements, these risks and uncertainties should be considered, together with the other risks described from time to time in our reports and other filings with the SEC.

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Item 7A. Quantitative and Qualitative Disclosures About Market Risk

In the ordinary course of business, Nucor is exposed to a variety of market risks. We continually monitor these risks and develop strategies to manage them.

Interest Rate Risk – Nucor manages interest rate risk by using a combination of variable-rate and fixed-rate debt. At December 31, 2023, approximately 20% of Nucor’s long-term debt was in industrial revenue bonds that have variable interest rates that are adjusted weekly. The remaining 80% of Nucor’s long-term debt was at fixed rates. Future changes in interest rates are not expected to significantly impact earnings. Nucor also occasionally makes use of interest rate swaps to manage net exposure to interest rate changes. As of December 31, 2023, there were no such contracts outstanding. Nucor’s investment practice is to invest in securities that are highly liquid with short maturities. As a result, we do not expect changes in interest rates to have a significant impact on the value of our investment securities recorded as short-term investments.

Commodity Price Risk – In the ordinary course of business, Nucor is exposed to market risk for price fluctuations of raw materials and energy, principally scrap steel, other ferrous and nonferrous metals, alloys and natural gas. We attempt to negotiate the best prices for our raw materials and energy requirements and to obtain prices for our steel products that match market price movements in response to supply and demand. In periods of strong or stable demand for our products, we are more likely to be able to effectively reduce the normal time lag in passing through higher raw material costs so that we can maintain our gross margins. When demand for our products is weaker, this becomes more challenging. Our DRI facilities in Trinidad and Louisiana provide us with flexibility in managing our input costs. DRI is particularly important for operational flexibility when demand for prime scrap increases due to increased domestic steel production.

Natural gas produced by Nucor’s production operations is being sold to third parties to partially offset our exposure to changes in the price of natural gas consumed by our Louisiana DRI facility and our steel mills in the United States.

Nucor also periodically uses derivative financial instruments to hedge a portion of our exposure to price risk related to natural gas purchases used in the production process and to hedge a portion of our scrap, aluminum and copper purchases and sales. Gains and losses from derivatives designated as hedges are deferred in accumulated other comprehensive loss, net of income taxes on the consolidated balance sheets and recognized in net earnings in the same period as the underlying physical transaction. At December 31, 2023, accumulated other comprehensive loss, net of income taxes included $13.9 million in unrealized net-of-tax losses for the fair value of these derivative instruments. Changes in the fair values of derivatives not designated as hedges are recognized in net earnings each period. The following table presents the negative effect on pre-tax earnings of a hypothetical change in the fair value of the derivative instruments outstanding at December 31, 2023, due to an assumed 10% and 25% change in the market price of each of the indicated commodities (in thousands):

Commodity Derivative	10% Change		25% Change
Natural gas	$	12,270	$	30,670
Aluminum		6,818		17,079
Copper		2,871		7,190

Any resulting changes in fair value would be recorded as adjustments to accumulated other comprehensive loss, net of income taxes or recognized in net earnings, as appropriate. These hypothetical losses would be partially offset by the benefit of lower prices paid or higher prices received for the physical commodities.

Foreign Currency Risk – Nucor is exposed to foreign currency risk primarily through its operations in Canada, Europe and Mexico. We periodically use derivative contracts to mitigate the risk of currency fluctuations. Open foreign currency derivative contracts at December 31, 2023 and 2022 were insignificant.

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Item 8. Financial Statements and Supplementary Data

Index to Financial Statements

Management’s Report on Internal Control Over Financial Reporting	50
Report of PricewaterhouseCoopers LLP Independent Registered Public Accounting Firm (PCAOB ID: 238)	51
Consolidated Balance Sheets	54
Consolidated Statements of Earnings	55
Consolidated Statements of Comprehensive Income	56
Consolidated Statements of Stockholders’ Equity	57
Consolidated Statements of Cash Flows	58
Notes to Consolidated Financial Statements	59

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MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Nucor’s management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management assessed the effectiveness of Nucor’s internal control over financial reporting as of December 31, 2023. In making this assessment, management used criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control – Integrated Framework (2013).

Based on its assessment, management concluded that Nucor’s internal control over financial reporting was effective as of December 31, 2023. PricewaterhouseCoopers LLP, an independent registered public accounting firm, has audited the effectiveness of Nucor’s internal control over financial reporting as of December 31, 2023 as stated in their report which is included herein.

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors of Nucor Corporation

Opinions on the Financial Statements and Internal Control over Financial Reporting

We have audited the accompanying consolidated balance sheets of Nucor Corporation and its subsidiaries (the “Company”) as of December 31, 2023 and 2022, and the related consolidated statements of earnings, of comprehensive income, of stockholders’ equity and of cash flows for each of the three years in the period ended December 31, 2023, including the related notes (collectively referred to as the “consolidated financial statements”). We also have audited the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the COSO.

Basis for Opinions

The Company's management is responsible for these consolidated financial statements, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 8. Our responsibility is to express opinions on the Company’s consolidated financial statements and on the Company's internal control over financial reporting based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud, and whether effective internal control over financial reporting was maintained in all material respects.

Our audits of the consolidated financial statements included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for

51

external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Critical Audit Matters

The critical audit matter communicated below is a matter arising from the current period audit of the consolidated financial statements that was communicated or required to be communicated to the audit committee and that (i) relates to accounts or disclosures that are material to the consolidated financial statements and (ii) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Goodwill Impairment Assessments – Certain Reporting Units in the Steel Products Segment

As described in Notes 2 and 8 to the consolidated financial statements, the Company’s consolidated goodwill balance was $3,969 million as of December 31, 2023, and the goodwill associated with the Steel Products segment was $2,514 million. Goodwill is tested annually for impairment, on the first day of the fourth quarter, and whenever events or circumstances change that would make it more likely than not that an impairment may have occurred. The evaluation of impairment involves comparing the current estimated fair value of each reporting unit to the recorded value, including goodwill. For certain reporting units, it is necessary to perform a quantitative analysis. In these instances, a discounted cash flow model is used to determine the current estimated fair value of these reporting units. As disclosed by management, significant assumptions used to determine the fair value of each reporting unit include (i) expected cash flow for the five-year period following the testing date (including market share, sales volumes and prices, raw material costs and other costs to produce and estimated capital needs); (ii) an estimated terminal value using a terminal year growth rate determined based on the growth prospects of the reporting unit; (iii) a discount rate based on management’s best estimate of the after-tax weighted-average cost of capital; and (iv) a probability-weighted scenario approach by which varying cash flows are assigned to certain scenarios based on the likelihood of occurrence.

The principal considerations for our determination that performing procedures relating to the goodwill impairment assessments for certain reporting units in the Steel Products segment is a critical audit matter are (i) the significant judgment by management when developing the fair value estimates of certain reporting units in the Steel Products segment; (ii) a high degree of auditor judgment, subjectivity, and effort in performing procedures and evaluating management’s significant assumptions related to sales prices, raw material costs, and discount rate for a certain reporting unit in the Steel Products segment; sales prices, sales volumes, raw material costs, and discount rate for a certain reporting unit in the Steel Products segment; and sales prices, sales volumes, and raw material costs for a certain reporting unit in the Steel Products segment; and (iii) the audit effort involved the use of professionals with specialized skill and knowledge.

52

Addressing the matter involved performing procedures and evaluating audit evidence in connection with forming our overall opinion on the consolidated financial statements. These procedures included testing the effectiveness of controls relating to management’s goodwill impairment assessments, including controls over the valuation of certain reporting units in the Steel Products segment. These procedures also included, among others, (i) testing management’s process for developing the fair value estimates of certain reporting units in the Steel Products segment; (ii) evaluating the appropriateness of the discounted cash flow models; (iii) testing the completeness and accuracy of underlying data used in the discounted cash flow models; and (iv) evaluating the reasonableness of the significant assumptions used by management related to sales prices, sales volumes, raw material costs, and discount rates for certain reporting units in the Steel Products segment. Evaluating management’s assumptions related to sales prices, sales volumes, and raw material costs involved evaluating whether the assumptions used by management were reasonable considering (i) the current and past performance of the reporting units; (ii) the consistency with external market and industry data; and (iii) whether the assumptions were consistent with evidence obtained in other areas of the audit. Professionals with specialized skill and knowledge were used to assist in evaluating (i) the appropriateness of the discounted cash flow models and (ii) the reasonableness of the discount rate assumptions.

/s/ PricewaterhouseCoopers LLC

Charlotte, North Carolina

February 27, 2024

We have served as the Company’s auditor since 1989.

53

CONSOLIDATED BALANCE SHEETS

(In thousands)

	December 31,
	2023			2022
ASSETS
Current assets:
Cash and cash equivalents	$	6,383,298		$	4,280,852
Short-term investments		747,479			576,946
Accounts receivable, net		2,953,311			3,591,030
Inventories, net		5,577,758			5,453,531
Other current assets		724,012			789,325
Total current assets		16,385,858			14,691,684
Property, plant and equipment, net		11,049,767			9,616,920
Restricted cash and cash equivalents		3,494			80,368
Goodwill		3,968,847			3,920,060
Other intangible assets, net		3,108,015			3,322,265
Other assets		824,518			847,913
Total assets	$	35,340,499		$	32,479,210
LIABILITIES AND EQUITY
Current liabilities:
Short-term debt	$	119,211		$	49,081
Current portion of long-term debt and finance lease obligations		74,102			28,582
Accounts payable		2,020,289			1,649,523
Salaries, wages and related accruals		1,326,390			1,654,210
Accrued expenses and other current liabilities		1,054,517			948,348
Total current liabilities		4,594,509			4,329,744
Long-term debt and finance lease obligations due after one year		6,648,873			6,613,687
Deferred credits and other liabilities		1,973,363			1,965,873
Total liabilities		13,216,745			12,909,304
Commitments and contingencies
Equity
Nucor stockholders’ equity:
Common stock (800,000 shares authorized; 380,154 and 380,154  shares issued, respectively)		152,061			152,061
Additional paid-in capital		2,176,243			2,143,520
Retained earnings		28,762,045			24,754,873
Accumulated other comprehensive loss, net of income taxes		(162,072	)		(137,517	)
Treasury stock (135,252 and 126,661 shares, respectively)		(9,987,643	)		(8,498,243	)
Total Nucor stockholders’ equity		20,940,634			18,414,694
Noncontrolling interests		1,183,120			1,155,212
Total equity		22,123,754			19,569,906
Total liabilities and equity	$	35,340,499		$	32,479,210

See notes to consolidated financial statements.

54

CONSOLIDATED STATEMENTS OF EARNINGS

(In thousands, except per share data)

	Year Ended December 31,
	2023			2022			2021
Net sales	$	34,713,501		$	41,512,467		$	36,483,939
Costs, expenses and other:
Cost of products sold		26,899,107			29,009,187			25,458,525
Marketing, administrative and other expenses		1,584,052			1,997,178			1,706,609
Equity in earnings of unconsolidated    affiliates		(12,783	)		(10,714	)		(103,068	)
Losses and impairments of assets		—			101,756			62,161
Interest (income) expense, net		(29,632	)		170,216			158,854
		28,440,744			31,267,623			27,283,081
Earnings before income taxes and    noncontrolling interests		6,272,757			10,244,844			9,200,858
Provision for income taxes		1,359,966			2,165,204			2,078,488
Net earnings before noncontrolling interests		4,912,791			8,079,640			7,122,370
Earnings attributable to noncontrolling    interests		387,990			472,303			294,909
Net earnings attributable to Nucor    stockholders	$	4,524,801		$	7,607,337		$	6,827,461
Net earnings per share:
Basic	$	18.05		$	28.88		$	23.23
Diluted	$	18.00		$	28.79		$	23.16

See notes to consolidated financial statements.

55

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands)

	Year Ended December 31,
	2023			2022			2021
Net earnings before noncontrolling interests	$	4,912,791		$	8,079,640		$	7,122,370
Other comprehensive income (loss):
Net unrealized (loss) gain on hedging derivatives,    net of income taxes of ($16,500), $24,300, and $5,000    for 2023, 2022 and 2021, respectively		(52,077	)		76,542			15,112
Reclassification adjustment for gain (loss) on    settlement of hedging derivatives included in net    earnings, net of income taxes of $3,800, ($16,400), and ($3,100)    for 2023, 2022 and 2021, respectively		12,077			(51,554	)		(9,300	)
Foreign currency translation (loss) gain, net of income    taxes of $0 for 2023, 2022 and 2021		21,041			(55,348	)		(4,041	)
Adjustment to early retiree medical plan, net of income    taxes of ($1,538), $1,997, and $659 for 2023, 2022 and    2021, respectively		(4,787	)		6,328			1,875
Reclassification adjustment for (gain) loss on early    retiree medical plan included in net earnings, net of    income taxes of ($255), $671 and ($10) for 2023,    2022 and 2021, respectively		(809	)		1,797			(67	)
		(24,555	)		(22,235	)		3,579
Comprehensive income		4,888,236			8,057,405			7,125,949
Comprehensive income attributable to noncontrolling    interests		387,990			472,303			294,909
Comprehensive income attributable to Nucor stockholders	$	4,500,246		$	7,585,102		$	6,831,040

See notes to consolidated financial statements.

56

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except per share data)

				Nucor Stockholders
														Accumulated									Total
								Additional						Other			Treasury Stock						Nucor
				Common Stock				Paid-in			Retained			Comprehensive			(at cost)						Stockholders'			Noncontrolling
	Total			Shares		Amount		Capital			Earnings			Loss			Shares			Amount			Equity			Interests
BALANCES, December 31, 2020	$	11,231,861			380,154	$	152,061	$	2,121,288		$	11,343,852		$	(118,861	)		77,909		$	(2,709,675	)	$	10,788,665		$	443,196
Net earnings before noncontrolling interests in 2021		7,122,370			—		—		—			6,827,461			—			—			—			6,827,461			294,909
Other comprehensive income (loss)		3,579			—		—		—			—			3,579			—			—			3,579			—
Stock options exercised		145,255			—		—		38,434			—			—			(2,868	)		106,821			145,255			—
Stock option expense		3,825			—		—		3,825			—			—			—			—			3,825			—
Issuance of stock under award plans,    net of forfeitures		19,305			—		—		(24,539	)		—			—			(1,101	)		43,844			19,305			—
Amortization of unearned compensation		1,600			—		—		1,600			—			—			—			—			1,600			—
Treasury stock acquired and net impact of excise tax		(3,276,088	)		—		—		—			—			—			33,802			(3,276,088	)		(3,276,088	)		—
Cash dividends declared ($1.715 per    share)		(497,213	)		—		—		—			(497,213	)		—			—			—			(497,213	)		—
Distributions to noncontrolling interests		(150,700	)		—		—		—			—			—			—			—			—			(150,700	)
BALANCES, December 31, 2021	$	14,603,794			380,154	$	152,061	$	2,140,608		$	17,674,100		$	(115,282	)		107,742		$	(5,835,098	)	$	14,016,389		$	587,405
Net earnings before noncontrolling interests in 2022		8,079,640			—		—		—			7,607,337			—			—			—			7,607,337			472,303
Other comprehensive income (loss)		(22,235	)		—		—		—			—			(22,235	)		—			—			(22,235	)		—
Stock options exercised		22,852			—		—		(2,994	)		—			—			(447	)		25,846			22,852			—
Stock option expense		5,372			—		—		5,372			—			—			—			—			5,372			—
Issuance of stock under award plans,    net of forfeitures		69,211			—		—		(4,366	)		—			—			(1,206	)		73,577			69,211			—
Amortization of unearned compensation		4,900			—		—		4,900			—			—			—			—			4,900			—
Treasury stock acquired and net impact of excise tax		(2,762,568	)		—		—		—			—			—			20,572			(2,762,568	)		(2,762,568	)		—
Cash dividends declared ($2.01 per    share)		(526,564	)		—		—		—			(526,564	)		—			—			—			(526,564	)		—
Distributions to noncontrolling interests		(332,293	)		—		—		—			—			—			—			—			—			(332,293	)
Acquisition		427,797			—		—		—			—			—			—			—			—			427,797
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 in 2023		4,912,791			—		—		—			4,524,801			—			—			—			4,524,801			387,990
Other comprehensive income (loss)		(24,555	)		—		—		—			—			(24,555	)		—			—			(24,555	)		—
Stock options exercised		11,731			—		—		(2,864	)		—			—			(210	)		14,595			11,731			—
Stock option expense		4,706			—		—		4,706			—			—			—			—			4,706			—
Issuance of stock under award plans,    net of forfeitures		88,265			—		—		24,577			—			—			(951	)		63,688			88,265			—
Amortization of unearned compensation		6,304			—		—		6,304			—			—			—			—			6,304			—
Treasury stock acquired and net impact of excise tax		(1,567,683	)		—		—		—			—			—			9,752			(1,567,683	)		(1,567,683	)		—
Cash dividends declared ($2.07 per    share)		(517,629	)		—		—		—			(517,629	)		—			—			—			(517,629	)		—
Distributions to noncontrolling interests		(435,047	)		—		—		—			—			—			—			—			—			(435,047	)
Acquisition		74,965			—		—		—			—			—			—			—			—			74,965
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

See notes to consolidated financial statements.

57

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

	Year Ended December 31,
	2023			2022			2021
Operating activities:
Net earnings before noncontrolling interests	$	4,912,791		$	8,079,640		$	7,122,370
Adjustments:
Depreciation		930,585			826,692			735,406
Amortization		237,730			234,942			129,157
Stock-based compensation		130,162			136,834			135,775
Deferred income taxes		21,419			(46,849	)		11,665
Distributions from affiliates		33,621			57,071			200
Equity in earnings of unconsolidated affiliates		(12,783	)		(10,714	)		(103,068	)
Losses and impairments of assets		—			101,756			62,161
Changes in assets and liabilities (exclusive of acquisitions and dispositions):
Accounts receivable		663,825			501,225			(1,392,084	)
Inventories		(75,042	)		962,424			(2,307,336	)
Accounts payable		361,146			(496,234	)		383,428
Federal income taxes		188,344			(337,359	)		313,679
Salaries, wages and related accruals		(290,859	)		155,005			997,034
Other operating activities		10,992			(92,379	)		142,389
Cash provided by operating activities		7,111,931			10,072,054			6,230,776
Investing activities:
Capital expenditures		(2,214,157	)		(1,947,897	)		(1,621,989	)
Investment in and advances to affiliates		(35,137	)		(258	)		(237	)
Sale of business		—			99,681			—
Disposition of plant and equipment		14,907			32,277			19,401
Acquisitions (net of cash acquired)		(70,824	)		(3,553,191	)		(1,426,424	)
Purchases of investments		(1,471,528	)		(913,898	)		(493,889	)
Proceeds from the sale of investments		1,317,308			590,173			648,887
Other investing activities		(37,000	)		(9,596	)		399
Cash used in investing activities		(2,496,431	)		(5,702,709	)		(2,873,852	)
Financing activities:
Net change in short-term debt		(24,870	)		(58,642	)		49,817
Proceeds from issuance of long-term debt, net of discount		—			2,091,934			196,990
Repayment of long-term debt		(10,000	)		(1,111,000	)		—
Bond issuance costs		—			(13,138	)		—
Proceeds from exercise of stock options		11,731			22,852			145,255
Payment of tax withholdings on certain stock-based compensation		(49,318	)		(64,079	)		(73,260	)
Distributions to noncontrolling interests		(435,047	)		(332,293	)		(150,700	)
Cash dividends		(514,534	)		(533,589	)		(483,469	)
Acquisition of treasury stock		(1,553,933	)		(2,762,568	)		(3,276,088	)
Proceeds from government incentives		—			275,000			—
Other financing activities		(16,840	)		(25,340	)		(11,424	)
Cash used in financing activities		(2,592,811	)		(2,510,863	)		(3,602,879	)
Effect of exchange rate changes on cash		2,883			(5,920	)		(316	)
Increase (decrease) in cash and cash equivalents and restricted cash and cash equivalents		2,025,572			1,852,562			(246,271	)
Cash and cash equivalents and restricted cash and cash equivalents - beginning of year		4,361,220			2,508,658			2,754,929
Cash and cash equivalents and restricted cash and cash equivalents - end of year	$	6,386,792		$	4,361,220		$	2,508,658
Non-cash investing activity:
Change in accrued plant and equipment purchases	$	1,053		$	4,568		$	78,375

See notes to consolidated financial statements.

58

NUCOR CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

YEARS ENDED DECEMBER 31, 2023, 2022 AND 2021

1. Nature of Operations and Basis of Presentation

Nature of Operations

Nucor is principally a manufacturer of steel and steel products, as well as a scrap broker and processor, with operating facilities and customers primarily located in North America.

Principles of Consolidation

The consolidated financial statements include Nucor and its controlled subsidiaries, including Nucor-Yamato Steel Company (Limited Partnership) (“Nucor-Yamato”), of which Nucor owns 51%; California Steel Industries, Inc. (“CSI”), of which Nucor owns 51%; and Nucor-JFE Steel Mexico, S. de R.L. de C.V. ("NJSM"), of which Nucor owns 51%. All intercompany transactions are eliminated.

Distributions are made to noncontrolling interest partners in Nucor-Yamato in accordance with the limited partnership agreement by mutual agreement of the general partners. At a minimum, sufficient cash is distributed so that each partner may pay its U.S. federal and state income taxes.

Distributions are made to noncontrolling interest partners in CSI in accordance with the shareholder agreement.

Distributions are made to the noncontrolling interest partner in NJSM in accordance with the joint venture agreement.

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates.

2. Summary of Significant Accounting Policies

Cash and Cash Equivalents

Cash equivalents are recorded at cost plus accrued interest, which approximates fair value, and have original maturities of three months or less at the date of purchase. Cash and cash equivalents are maintained primarily with a few high-credit quality financial institutions.

Short-term Investments

Short-term investments are recorded at cost plus accrued interest, which approximates fair value. Unrealized gains and losses on investments classified as available-for-sale are recorded as a component of accumulated other comprehensive income (loss). Management determines the appropriate classification of its investments at the time of purchase and re-evaluates such determination at each balance sheet date.

59

Inventories

Inventories are stated at the lower of cost or net realizable value. The Company records any amount required to reduce the carrying value of inventory to net realizable value as a charge to cost of products sold. Scrap and scrap substitute costs are a very significant component of the raw material, semi-finished and finished product inventory balances. The vast majority of the Company’s inventory is recorded on the first-in, first-out method. Production costs are applied to semi-finished and finished product inventory from the approximate period in which they are produced.

Property, Plant and Equipment

Property, plant and equipment is stated at cost, except for property, plant and equipment acquired through acquisitions which is recorded at acquisition date fair value. With the exception of our natural gas wells, depreciation primarily is provided on a straight-line basis over the estimated useful lives of the assets. Depletion of all capitalized costs associated with our natural gas producing properties is expensed on a unit-of-production basis by individual field as the gas from the proved developed reserves is produced. The costs of acquiring unproved natural gas leasehold acreage are capitalized. When proved reserves are found on unproved properties, the associated leasehold cost is transferred to proved properties. Unproved leases are reviewed periodically for any impairment triggering event, and a valuation allowance is provided for any estimated decline in value. The costs of planned major maintenance activities are capitalized as part of other current assets and amortized over the period until the next scheduled major maintenance activity. All other repairs and maintenance activities are expensed when incurred.

Goodwill and Other Intangibles

Goodwill is the excess of cost over the fair value of net assets of businesses acquired. Goodwill is not amortized but is tested annually for impairment and whenever events or circumstances change that would make it more likely than not that an impairment may have occurred. We perform our annual impairment analysis as of the first day of the fourth quarter each year. The evaluation of impairment involves comparing the current estimated fair value of each reporting unit, which is a level below the reportable segment, to the recorded value, including goodwill. When appropriate, Nucor performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. For certain reporting units, it is necessary to perform a quantitative analysis. In these instances, a discounted cash flow model is used to determine the current estimated fair value of these reporting units. A number of significant assumptions and estimates are involved in the application of the discounted cash flow model to forecast operating cash flows, which could include market growth and market share, sales volumes and prices, raw materials and other costs to produce, discount rate and estimated capital needs. Management considers historical experience and all available information at the time the fair values of its reporting units are estimated. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. Changes in assumptions and estimates may affect the fair value of goodwill and could result in impairment charges in future periods.

Finite-lived intangible assets are amortized over their estimated useful lives on a straight-line or accelerated basis.

Long-Lived Asset Impairments

We evaluate our property, plant and equipment and finite-lived intangible assets for potential impairment on an individual asset basis or at the lowest level asset grouping for which independent cash flows can be separately identified. Asset impairments are assessed whenever circumstances indicate that the carrying amounts of those productive assets could exceed their projected undiscounted cash flows. When it is determined that impairment exists, the related assets are written down to their estimated fair market value.

Equity Method Investments

Investments in joint ventures in which Nucor shares control over the financial and operating decisions but in which Nucor is not the primary beneficiary are accounted for under the equity method.

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Each of the Company’s equity method investments is subject to a review for impairment if, and when, circumstances indicate that a decline in fair value below its carrying amount may have occurred. Examples of such circumstances include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee; missed financial projections; a significant adverse change in the regulatory, tax, economic or technological environment of the investee; a significant adverse change in the general market condition of either the geographic area or the industry in which the investee operates; and recurring negative cash flows from operations. If management considers the decline to be other than temporary, the Company would write down the related investment to its estimated fair market value.

Revenue Recognition

Nucor recognizes revenue when obligations under the terms of contracts with our customers are satisfied and collection is reasonably assured; generally, obligations under the terms of contracts are satisfied upon shipment or when control is transferred. Revenue is measured as the amount of consideration expected to be received in exchange for transferring the goods. In addition, revenue is deferred when cash payments are received or due in advance of performance. See Note 23 for further information.

Income Taxes

Nucor utilizes the liability method of accounting for income taxes. Under the liability method, deferred taxes are determined based on the temporary differences between the financial statement and tax basis of assets and liabilities using tax rates expected to be in effect during the years in which the basis differences reverse. A valuation allowance is recorded when it is more likely than not that some of the deferred tax assets will not be realized.

Nucor recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Potential accrued interest and penalties related to unrecognized tax benefits are recognized as a component of interest expense and other expenses.

Stock-Based Compensation

The Company recognizes the cost of stock-based compensation as an expense using fair value measurement methods. The assumptions used to calculate the fair value of stock-based compensation granted are evaluated and revised for new grants, as necessary, to reflect market conditions and experience.

Foreign Currency Translation

For Nucor’s operations where the functional currency is other than the U.S. dollar, assets and liabilities have been translated at year-end exchange rates, and income and expenses have been translated using average exchange rates for the respective periods. Adjustments resulting from the process of translating an entity’s financial statements into the U.S. dollar have been recorded in accumulated other comprehensive income (loss) and are included in net earnings only upon sale or liquidation of the underlying investments. Foreign currency transaction gains and losses are included in net earnings in the period they occur.

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 (“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

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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.

3. Short-term Investments

Nucor held $747.5 million of short-term investments as of December 31, 2023 ($576.9 million as of December 31, 2022). The investments held as of December 31, 2023 and December 31, 2022 consisted mainly of several certificates of deposit (“CD’s”), commercial paper and corporate bonds, which were classified as available-for-sale. Interest income on the CD’s and corporate bonds was recorded as earned.

No realized or unrealized gains or losses were incurred in 2023, 2022 or 2021.

4. Accounts Receivable

An allowance for doubtful accounts is maintained for estimated losses resulting from the inability of our customers to make required payments. Accounts receivable are stated net of the allowance for doubtful accounts of $127.2 million at December 31, 2023 ($200.2 million at December 31, 2022 and $95.4 million at December 31, 2021).

5. Inventories

Inventories consisted of approximately 37% raw materials and supplies and 63% finished and semi-finished products at December 31, 2023 and December 31, 2022. 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.

6. Leases

We lease certain equipment, office space and land. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet.

Most leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or sometimes more. The exercise of lease renewal options is at our sole discretion and we consider these options in determining the lease term used to establish our right-of-use assets and lease liabilities. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements is limited by the expected lease term, unless there is a transfer of title or a purchase option reasonably certain of exercise.

We determine that a contract contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. In evaluating whether we have the right to control the use of an identified asset, we assess whether or not we have the right to control the use of the identified asset and to obtain substantially all of the economic benefit from the use of the identified asset.

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As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments.

Certain of our lease agreements include payments that adjust periodically for consumption of goods provided by the right-of-use asset in excess of contractually determined minimum amounts and for inflation. These variable lease payments are not significant. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Supplemental statement of earnings information related to our leases is as follows (in thousands):

		Year Ended December 31,
	Statement of Earnings Classification	2023		2022		2021
Operating lease cost	Cost of products sold	$	26,750	$	23,666	$	21,503
Operating lease cost	Marketing, administrative and other expenses		3,199		3,239		2,989
Total operating    lease cost		$	29,949	$	26,905	$	24,492
Finance lease cost:
Amortization of leased    assets	Cost of products sold	$	19,171	$	19,113	$	13,513
Interest on lease    liabilities	Interest expense, net		11,964		12,229		10,670
Total finance lease    cost		$	31,135	$	31,342	$	24,183
Total lease cost		$	61,084	$	58,247	$	48,675

Supplemental cash flow information related to our leases is as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
Cash paid for amounts included in measurement of lease    liabilities:
Operating cash flows from operating leases	$	30,230	$	26,518	$	27,310
Operating cash flows from finance leases	$	11,964	$	12,229	$	10,670
Financing cash flows from finance leases	$	16,840	$	16,008	$	11,425
Non-cash investing and financing activities:
Additions to right-of-use assets obtained from
Operating lease liabilities	$	26,955	$	33,924	$	19,711
Finance lease liabilities	$	16,473	$	27,030	$	99,535

Supplemental balance sheet information related to our leases is as follows (in thousands):

		December 31,
	Balance Sheet Classification	2023		2022
Assets:
Operating lease	Other assets	$	102,878	$	101,499
Finance lease	Property, plant and equipment, net		166,780		169,076
Total leased		$	269,658	$	270,575
Liabilities:
Current operating	Accrued expenses and other current liabilities	$	25,405	$	23,621
Current finance	Current portion of long-term debt and finance lease obligations		14,102		18,582
Non-current operating	Deferred credits and other liabilities		81,673		81,455
Non-current finance	Long-term debt and finance lease obligations due after one year		174,787		169,804
Total leased		$	295,967	$	293,462

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Weighted-average remaining lease term and discount rate for our leases are as follows:

	December 31, 2023
Weighted-average remaining lease term - operating leases	7.7 Years
Weighted-average remaining lease term - finance leases	14.3 Years
Weighted-average discount rate - operating leases		4.0	%
Weighted-average discount rate - finance leases		11.7	%

The reason for the substantial weighted-average discount rate – finance leases, of 11.7%, is due to Nucor’s past accounting for the respective finance leases under the former accounting guidance for capital leases. Pursuant to the former lease accounting guidance, the recognition of a capital lease asset and associated capital lease liability could not exceed the fair market value of the leased asset at the lease commencement. Accordingly, the incremental borrowing rate was adjusted upward so that the present value of the minimum lease payments would equal the fair value of the asset.

Maturities of lease liabilities by year for our leases were as follows as of December 31, 2023 (in thousands):

	Operating Leases			Finance Leases
Maturities of lease liabilities, year ending December 31,
2024	$	29,014		$	24,890
2025		22,032			22,391
2026		18,240			20,456
2027		13,569			19,860
2028		11,334			20,059
Thereafter		33,717			160,729
Total lease payments	$	127,906		$	268,385
Less imputed interest		(20,828	)		(79,496	)
Present value of lease liabilities	$	107,078		$	188,889

7. Property, Plant and Equipment

Property, Plant and Equipment is carried at historical cost, net of accumulated depreciation. Net Property, Plant and Equipment by major asset class consisted of the following at December 31, 2023 (in thousands):

	December 31,
	2023			2022
Land and improvements, net	$	1,183,173		$	905,598
Buildings and improvements		2,550,959			2,230,672
Machinery and equipment		16,328,126			15,125,653
Proved oil and gas properties		558,703			558,486
Leasehold interest in unproved oil and gas properties		96,000			96,000
Construction in process and equipment deposits		2,121,788			1,815,638
		22,838,749			20,732,047
Less accumulated depreciation		(11,788,982	)		(11,115,127	)
	$	11,049,767		$	9,616,920

The estimated useful lives primarily range from five to 25 years for land improvements, four to 40 years for buildings and improvements and two to 15 years for machinery and equipment. The useful life for proved oil and gas properties is based on the unit-of-production method and varies by well.

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Raw Materials Segment Asset Impairments

In the second quarter of 2021, Nucor decided that it would not develop a portion of its unproved oil and natural gas properties (“Portion A”) within the contractually specified time period related to Portion A. As a result of this decision, the Company forfeited its leasehold rights for Portion A. The Company recorded a charge of $42.0 million to write off the value of Portion A that is included in losses and impairments of assets in the consolidated statement of earnings for the year ended December 31, 2021. The decision not to develop Portion A was heavily influenced by the approaching deadline to commence development combined with Portion A’s expected near-term profitability not achieving management’s desired returns relative to the cost of development. A significant portion of the Company’s remaining leasehold interest in unproved oil and natural gas properties are held by production. The carrying value of the remaining portions of unproved oil and natural gas properties was $96.0 million at December 31, 2021.

In the fourth quarter of 2022, Nucor decided that it is unlikely to develop the remaining portions of its unproved oil and natural gas properties. As a result of this decision, Nucor recorded a $96.0 million impairment charge for the entire balance of those assets, which are included in the raw materials segment. The impairment charge is included in losses and impairments of assets in the consolidated statement of earnings for the year ended December 31, 2022. We retain ownership of our leasehold interest in unproved oil and natural gas properties. The carrying value of the leasehold interest in unproved oil and gas properties was zero at December 31, 2022.

Financial Assistance Related to Sheet Mill in West Virginia

Nucor received $275.0 million of financial assistance in 2022 from the West Virginia Department of Economic Development in connection with Nucor’s planned construction of Nucor Steel West Virginia (NSWV), a sheet mill in Mason County, West Virginia. Nucor will earn the financial assistance if, by the Completion Date (defined in the agreement as on or before December 31, 2026), Nucor meets certain capital investment, full-time jobs creation and total annual payroll criteria. Nucor believes that it is probable we will meet these conditions. Nucor spent $179.7 million in 2022 and $95.3 million in 2023 in qualifying expenditures for the construction of NSWV, and that amount is included as a contra-asset in construction in process and equipment deposits that are a part of property, plant and equipment, net on the consolidated balance sheet at December 31, 2023. When the NSWV assets are placed into service, the effect of depreciating the assets constructed with the financial assistance will decrease depreciation expense in the statement of earnings.

8. Goodwill and Other Intangible Assets

The change in the net carrying amount of goodwill for the years ended December 31, 2023 and 2022 by segment is as follows:

	(in thousands)
	Steel		Steel			Raw
	Mills		Products			Materials			Total
Balance, December 31, 2021	$	613,175	$	1,439,874		$	774,295		$	2,827,344
Acquisitions		62,011		1,087,906			—			1,149,917
Divestitures		—		—			(39,466	)		(39,466	)
Translation		—		(17,735	)		—			(17,735	)
Balance, December 31, 2022		675,186		2,510,045			734,829			3,920,060
Acquisitions		—		(2,120	)		44,660			42,540
Translation		—		6,247			—			6,247
Balance, December 31, 2023	$	675,186	$	2,514,172		$	779,489		$	3,968,847

The majority of goodwill is not tax deductible.

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Intangible assets with estimated useful lives of five to 25 years are amortized on a straight-line or accelerated basis and are comprised of the following:

	(in thousands)
	December 31, 2023				December 31, 2022
	Gross		Accumulated		Gross		Accumulated
	Amount		Amortization		Amount		Amortization
Customer relationships	$	4,190,156	$	1,295,778	$	4,174,724	$	1,087,834
Trademarks and trade names		372,153		168,363		364,106		142,363
Other		109,747		99,900		109,746		96,114
	$	4,672,056	$	1,564,041	$	4,648,576	$	1,326,311

Intangible asset amortization expense was $237.7 million in 2023 ($234.9 million in 2022 and $129.2 million in 2021). Annual amortization expense is estimated to be $235.1 million in 2024, $234.1 million in 2025, $231.1 million in 2026, $227.9 million in 2027 and $204.6 million in 2028.

The Company completed its annual goodwill impairment testing as of the first day of the fourth quarter for each of 2023, 2022 and 2021 and concluded that as of each such date there was no impairment of goodwill for any of its reporting units.

There are no significant historical accumulated impairment charges, by segment or in the aggregate, related to goodwill.

9. Equity Investments

The carrying value of our equity investments in domestic and foreign companies was $479.5 million at December 31, 2023 ($562.3 million at December 31, 2022), and is recorded in other assets in the consolidated balance sheets.

NuMit

Nucor owns a 50% economic and voting interest in NuMit LLC (“NuMit”). NuMit owns 100% of the equity interest in Steel Technologies LLC, an operator of 32 sheet processing facilities located throughout the United States, Canada and Mexico. Nucor accounts for its investment in NuMit (on a one-month lag basis) under the equity method, as control and risk of loss are shared equally between the members of NuMit. Nucor’s investment in NuMit was $431.9 million at December 31, 2023 ($423.9 million at December 31, 2022). Nucor received distributions of $32.9 million, $55.6 million, and $0.2 million from NuMit during 2023, 2022 and 2021, respectively.

Nucor-JFE Steel Mexico

Nucor previously owned a 50% economic and voting interest in Nucor-JFE Steel Mexico, S. de R.L. de C.V. (“NJSM”), a 50-50 joint venture with JFE Steel Corporation (“JFE”) of Japan. In October 2023, Nucor purchased an additional 1% interest in NJSM to bring the total investment to a 51% controlling interest. Beginning in the fourth quarter of 2023, Nucor has accounted for NJSM on a consolidated basis. See Note 25 for purchase price allocation information related to the step acquisition. Nucor’s investment in NJSM was $91.8 million at December 31, 2022.

All Equity Investments

Nucor reviews its equity investments for impairment if and when circumstances indicate that a decline in fair value below their carrying amounts may have occurred. There were no triggering events that caused management to pursue additional testing of our equity method investments in 2023.

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10. Current Liabilities

Book overdrafts, included in accounts payable in the consolidated balance sheets, were $159.0 million at December 31, 2023 ($163.6 million at December 31, 2022). Dividends payable, included in accrued expenses and other current liabilities in the consolidated balance sheets, were $133.6 million at December 31, 2023 ($130.5 million at December 31, 2022).

11. Debt and Other Financing Arrangements

	December 31,
(in thousands)	2023		2022
Industrial revenue bonds due from 2025 to 2061 (1)	$	1,349,230	$	1,349,230
NJSM notes due from 2024 to 2026 (2)		80,000		—
Notes, 2.000%, due 2025		500,000		500,000
Notes, 3.950%, due 2025		500,000		500,000
Notes, 4.300%, due 2027		500,000		500,000
Term notes, 2.950%, due 2027 (3)		58,040		67,866
Notes, 3.950%, due 2028		500,000		500,000
Notes, 2.700%, due 2030		500,000		500,000
Notes, 3.125%, due 2032		550,000		550,000
Notes, 6.400%, due 2037		543,331		543,331
Notes, 5.200%, due 2043		338,133		338,133
Notes, 4.400%, due 2048		329,219		329,219
Notes, 3.850%, due 2052		550,000		550,000
Notes, 2.979%, due 2055		439,312		439,312
Finance lease obligations		188,889		188,386
Total long-term debt and finance lease obligations		6,926,154		6,855,477
Less premium on debt exchange		171,162		169,737
Less debt issuance costs		32,017		43,471
Total amounts outstanding		6,722,975		6,642,269
Less current maturities of long-term debt (2) (3)		60,000		10,000
Less current portion of finance lease obligations		14,102		18,582
Total long-term debt and finance lease obligations due after    one year	$	6,648,873	$	6,613,687

(1)The industrial revenue bonds had variable rates ranging from 4.20% to 5.10% at December 31, 2023 and 3.65% to 4.28% at December 31, 2022.

(2)The NJSM notes relate to borrowings of NJSM under its General Financing Agreement and Promissory Note (the “NJSM Facility”). The maximum amount NJSM could borrow under the NJSM facility was $80.0 million at December 31, 2023. The NJSM facility is uncommitted. Borrowings under the NJSM facility had variable rates ranging from 2.46% to 6.78% at December 31, 2023.

(3)The term notes were assumed in conjunction with the acquisition of 51% ownership of CSI on February 1, 2022. The original principal amount of the notes was $101.0 million, with a fixed rate of 2.95% until September 30, 2026 when they will convert to a floating rate. Payments of $2.5 million are due quarterly along with accrued interest. The term notes mature on March 31, 2027. (See Note 25.)

Annual aggregate long-term debt maturities are: $60.0 million in 2024, $1.01 billion in 2025, $61.5 million in 2026, $528.0 million in 2027, $549.5 million in 2028 and $4.53 billion thereafter.

Nucor's $1.75 billion revolving credit facility remains undrawn and has a maturity date of November 5, 2026. Costs associated with the amendment were immaterial. The unsecured revolving credit facility provides up to $1.75 billion in revolving loans and allows up to $500.0 million in additional commitments at Nucor’s election in accordance with the terms set forth in the credit agreement. Up to $100.0 million of the credit facility is available for the issuance of letters of credit and up to $500.0 million is available for the issuance of revolving loans for Nucor subsidiaries in accordance with the terms set forth in the credit agreement. The credit facility provides for a pricing grid based upon the credit rating of Nucor’s senior unsecured long-term debt and, alternatively, interest rates quoted by lenders in connection with competitive bidding. The credit facility includes customary financial and other covenants, including a limit on the ratio of funded debt to total capital of 60%, a limit on Nucor’s ability to pledge the Company’s

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assets and a limit on consolidations, mergers and sales of assets. As of December 31, 2023, Nucor’s funded debt to total capital ratio was 24%, and Nucor was in compliance with all covenants under the credit facility. No borrowings were outstanding under the credit facility as of December 31, 2023 and 2022.

On March 11, 2022, Nucor completed the issuance and sale of $550.0 million aggregate principal amount of its 3.125% Notes due 2032 (the “2032 Notes”) and $550.0 million aggregate principal amount of its 3.850% Notes due 2052 (the “2052 Notes” and, together with the 2032 Notes, the “2032/2052 Notes”). The net proceeds from the issuance and sale of the 2032/2052 Notes were used along with cash on hand to redeem all of the outstanding $600.0 million aggregate principal amount of our 4.125% Notes due 2022 (the “2022 Notes”) and $500.0 million aggregate principal amount of our 4.000% Notes due 2023 (the “2023 Notes”) pursuant to the terms of the indenture governing the 2022 Notes and the 2023 Notes. The net proceeds from the issuance and sale of the 2032/2052 Notes were $1.09 billion, after expenses and the underwriting discount. Costs of $15.3 million associated with the issuance and sale of the 2032/2052 Notes have been capitalized and will be amortized over the life of the March 2022 Notes.

On April 25, 2022, Nucor redeemed all $500.0 million aggregate principal amount outstanding of the 2023 Notes using a portion of the net proceeds from the issuance and sale of the 2032/2052 Notes. On August 15, 2022, Nucor redeemed all $600.0 million aggregate principal amount outstanding of the 2022 Notes using the remaining portion of the net proceeds from the issuance and sale of the 2032/2052 Notes.

On May 23, 2022, Nucor completed the issuance and sale of $500.0 million aggregate principal amount of its 3.950% Notes due 2025 (the “2025 Notes”) and $500.0 million aggregate principal amount of its 4.300% Notes due 2027 (the “2027 Notes” and, together with the 2025 Notes, the “2025/2027 Notes”). The net proceeds from the issuance and sale of the 2025/2027 Notes were used for general corporate purposes and to pay a portion of the purchase price for the acquisition of C.H.I. The net proceeds from the issuance and sale of the 2025/2027 Notes were $991.9 million, after expenses and the underwriting discount. Costs of $5.9 million associated with the issuance and sale of the 2025/2027 Notes have been capitalized and will be amortized over the life of the 2025/2027 Notes.

Harris Steel has credit facilities totaling approximately $18.7 million, with no outstanding borrowings at December 31, 2023 and 2022.

The business of Nucor Trading S.A. is financed by uncommitted trade credit arrangements with a number of European banking institutions. As of December 31, 2023, Nucor Trading S.A. had outstanding borrowings of $24.2 million ($49.1 million as of December 31, 2022). NJSM maintains an uncommitted trade credit agreement with three banking institutions. As of December 31, 2023, NJSM had outstanding borrowings of $95.0 million under the trade credit agreement. Nucor Trading S.A. and NJSM's credit arrangements are presented in short-term debt in the consolidated balance sheet .

Letters of credit totaling $57.7 million were outstanding as of December 31, 2023 ($43.5 million as of December 31, 2022), related to certain obligations, including workers’ compensation, utilities deposits and credit arrangements by Nucor Trading S.A. for commitments to purchase inventories.

12. Capital Stock

The par value of Nucor’s common stock is $0.40 per share and there are 800 million shares authorized. In addition, 250,000 shares of preferred stock, par value $4.00 per share, are authorized, with preferences, rights and restrictions as may be fixed by the Board of Directors. There are no shares of preferred stock issued or outstanding.

Dividends declared per share were $2.070 in 2023 ($2.010 in 2022 and $1.715 per share in 2021).

The Company repurchased approximately $1.55 billion of its common stock in 2023 (approximately $2.76 billion in 2022 and $3.28 billion in 2021).

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On May 11, 2023, the Company announced that the 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. At December 31, 2023, the Company had approximately $3.32 billion available for share repurchases under the program authorized by the Company’s Board of Directors.

13. Derivative Financial Instruments

The following tables summarize information regarding Nucor’s derivative financial instruments (in thousands):

		Fair Value at
		December 31,
Fair Value of Derivative Financial    Instruments	Consolidated Balance Sheet Location	2023			2022
Asset derivatives designated    as hedging instruments:
Commodity contracts	Other current assets	$	—		$	17,200
Commodity contracts	Other assets		—			17,200
Total asset derivatives		$	—		$	34,400
Liability derivatives designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities	$	(14,700	)	$	—
Commodity contracts	Deferred credits and other liabilities		(3,600	)		—
Total liability derivatives    designated as hedging    instruments			(18,300	)		—
Liability derivatives not designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities		(4,382	)		(501	)
Foreign exchange contracts	Accrued expenses and other current liabilities		(529	)		(869	)
Total liability derivatives not    designated as hedging    instruments			(4,911	)		(1,370	)
Total liability derivatives		$	(23,211	)	$	(1,370	)

The Effect of Derivative Financial Instruments on the Consolidated Statements of Earnings

Derivatives Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
									Amount of Gain or
									(Loss), Net of Tax,
		Amount of Gain or (Loss),							Reclassified from							Amount of Gain or (Loss),
	Statement of	Net of Tax, Recognized							Accumulated OCI into							Net of Tax, Recognized
Derivatives in Cash Flow	Earnings	in OCI on Derivatives							Earnings on Derivatives							in Earnings on Derivatives
Hedging Relationships	Location	(Effective Portion)							(Effective Portion)							(Ineffective Portion)
		2023			2022		2021		2023			2022		2021		2023		2022		2021
Commodity contracts	Cost of products sold	$	(52,077	)	$	76,542	$	15,112	$	(12,077	)	$	51,554	$	9,300	$	—	$	—	$	—

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Derivatives Not Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
		Amount of Gain or (Loss)
Derivatives Not Designated	Statement of Earnings	Recognized in Earnings on
as Hedging Instruments	Location	Derivatives
		2023			2022		2021
Commodity contracts	Cost of products sold	$	3,300		$	3,311	$	(27,777	)
Foreign exchange contracts	Cost of products sold		(856	)		11,641		8,114
Total		$	2,444		$	14,952	$	(19,663	)

At December 31, 2023, natural gas swaps covering approximately 44.0 million MMBTUs (extending through December 2026) were outstanding.

14. Fair Value Measurements

The following table summarizes information regarding Nucor’s financial assets and liabilities that are measured at fair value. Nucor does not have any non-financial assets or liabilities that are measured at fair value on a recurring basis.

				(in thousands)
				Fair Value Measurements at Reporting Date Using
				Quoted Prices
				in Active		Significant
	Carrying			Markets for		Other			Significant
	Amount in			Identical		Observable			Unobservable
	Consolidated			Assets		Inputs			Inputs
Description	Balance Sheets			(Level 1)		(Level 2)			(Level 3)
As of December 31, 2023
Assets:
Cash equivalents	$	5,724,549		$	5,724,549	$	—		$	—
Short-term investments		747,479			747,479		—			—
Derivative contracts		—			—		—			—
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	)	$	—
As of December 31, 2022
Assets:
Cash equivalents	$	3,182,631		$	3,182,631	$	—		$	—
Short-term investments		576,946			576,946		—			—
Derivative contracts		34,400			—		34,400			—
Restricted cash and cash    equivalents		80,368			80,368		—			—
Total assets	$	3,874,345		$	3,839,945	$	34,400		$	—
Liabilities:
Derivative contracts	$	(1,370	)	$	—	$	(1,370	)	$	—

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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 of Nucor's investments in privately held companies, most of which is 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 $6.22 billion at December 31, 2023 (approximately $5.93 billion at December 31, 2022). The debt fair value estimates are classified under Level 2 because such estimates are based on readily available market prices of our debt at December 31, 2023 and 2022, or similar debt with the same maturities, ratings and interest rates.

15. 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.

16. Stock-Based Compensation

Overview

The Company maintains the Nucor Corporation 2014 Omnibus Incentive Compensation Plan (the “Omnibus Plan”) under which the Company may award stock-based compensation to key employees, officers and non-employee directors. The Company’s stockholders approved an amendment and restatement of the Omnibus Plan on May 14, 2020. The Company also amended the Omnibus Plan on September 14, 2023. The Omnibus Plan, as amended and restated, permits the award of stock options, restricted stock units, restricted shares and other stock-based awards for up to 19.0 million shares of the Company’s common stock. As of December 31, 2023, 4.3 million shares remained available for award under the Omnibus Plan.

The Company also maintains a number of inactive plans under which stock-based awards remain outstanding but no further awards may be made. As of December 31, 2023, 0.1 million shares were reserved for issuance upon the future settlement of outstanding awards under such inactive plans.

Stock Options

Stock options may be granted to Nucor’s key employees, officers and non-employee directors with exercise prices at 100% of the market value on the date of the grant. The stock options granted are generally exercisable at the end of three years and have a term of 10 years.

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A summary of activity under Nucor’s stock option plans is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
				Exercise					Exercise					Exercise
	Shares			Price		Shares			Price		Shares			Price
Number of shares under stock options:
Outstanding at beginning of year		837		$	66.76		1,186		$	55.58		3,916		$	50.03
Granted		91		$	133.03		98		$	130.71		138		$	110.74
Exercised		(210	)	$	55.85		(447	)	$	51.14		(2,868	)	$	50.65
Canceled		—		$	—		—		$	—		—		$	—
Outstanding at end of year		718		$	78.33		837		$	66.76		1,186		$	55.58
Stock options exercisable at end of year		433		$	48.33		313		$	59.60		523		$	54.71

The total intrinsic value of stock options (the amount by which the stock price exceeded the exercise price of the stock option on the date of exercise) that were exercised during 2023 was $24.5 million ($32.2 million in 2022 and $67.8 million in 2021).

The following table summarizes information about stock options outstanding at December 31, 2023 (shares in thousands):

	Options Outstanding					Options Exercisable
			Weighted-
			Average	Weighted-				Weighted-
Range of	Number		Remaining Contractual	Average Exercise		Number		Average Exercise
Exercise Prices	Outstanding		Life	Price		Exercisable		Price
$40.00 - $60.00		379	6.3 years	$	43.06		379	$	43.06
$60.01 - $75.00		33	4.4 years	$	65.80		33	$	65.80
$75.01 - $100.00		—	0.0 years	$	—		—	$	—
$100.01 - $120.00		122	7.4 years	$	110.74		15	$	110.74
$120.01 - $133.03		184	8.9 years	$	131.86		6	$	130.71
$40.00 - $133.03		718	7.1 years	$	78.33		433	$	48.33

As of December 31, 2023, the total aggregate intrinsic value of stock options outstanding and stock options exercisable was $68.7 million and $54.5 million, respectively.

The grant date fair value of stock options granted was $49.62 per share in 2023 ($45.27 per share in 2022 and $32.30 per share in 2021). The fair value was estimated using the Black-Scholes options pricing model with the following assumptions:

	2023			2022			2021
Exercise price	$	133.03		$	130.71		$	110.74
Expected dividend yield		1.53	%		1.53	%		1.46	%
Expected stock price volatility		37.55	%		35.77	%		32.86	%
Risk-free interest rate		3.66	%		2.98	%		1.28	%
Expected life (years)		6.5			6.5			6.5

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Stock options granted to employees who are eligible for retirement on the date of the grant are expensed immediately since these awards vest upon retirement from the Company. Retirement, for purposes of vesting in these stock options, means termination of employment after satisfying age and years of service requirements. Similarly, stock options granted to employees who will become retirement-eligible prior to the end of the vesting term are expensed over the period through which the employee will become retirement-eligible. Compensation expense for stock options granted to employees who will not become retirement-eligible prior to the end of the vesting term is recognized on a straight-line basis over the vesting period. Compensation expense for stock options was $4.7 million in 2023 ($5.4 million in 2022 and $3.8 million in 2021). As of December 31, 2023, unrecognized compensation expense related to stock options was $2.0 million, which is expected to be recognized over a weighted-average period of 1.9 years.

Restricted Stock Units

Nucor annually grants restricted stock units (“RSUs”) to key employees, officers and non-employee directors. The RSUs granted to key employees and officers vest and are converted to common stock in three equal installments on each of the first three anniversaries of the grant date, provided that a portion of the RSUs awarded to an officer prior to 2018 vest only upon the officer’s retirement. Retirement, for purposes of vesting in these RSUs only, means termination of employment with approval of the Compensation and Executive Development Committee of the Board of Directors after satisfying age and years of service requirements. RSUs granted to a non-employee director are fully vested on the grant date and are payable to the non-employee director in the form of common stock after the termination of the director’s service on the Board of Directors.

RSUs granted to employees who are eligible for retirement on the date of the grant are expensed immediately, and RSUs granted to employees who will become retirement-eligible prior to the end of the vesting term are expensed over the period through which the employee will become retirement-eligible since these awards vest upon retirement from the Company. Compensation expense for RSUs granted to employees who will not become retirement-eligible prior to the end of the vesting term is recognized on a straight-line basis over the vesting period.

Cash dividend equivalents are paid to holders of RSUs each quarter. Dividend equivalents paid on RSUs expected to vest are recognized as a reduction in retained earnings.

The fair value of an RSU is determined based on the closing price of Nucor’s common stock on the date of the grant.

A summary of Nucor’s RSU activity is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units:
Unvested at beginning of year		1,003		$	98.66		1,167		$	60.45		1,830		$	47.33
Granted		831		$	133.03		774		$	130.71		397		$	110.74
Vested		(873	)	$	102.79		(916	)	$	77.21		(997	)	$	57.09
Canceled		(14	)	$	106.76		(22	)	$	93.73		(63	)	$	49.54
Unvested at end of year		947		$	124.89		1,003		$	98.66		1,167		$	60.45

Compensation expense for RSUs was $88.1 million in 2023 ($80.4 million in 2022 and $52.1 million in 2021). The total fair value of shares vested during 2023 was $120.7 million ($120.0 million in 2022 and $109.5 million in 2021). As of December 31, 2023, unrecognized compensation expense related to unvested RSUs was $83.9 million, which is expected to be recognized over a weighted-average period of 1.3 years.

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Restricted Stock Awards

Prior to their expiration effective December 31, 2017, the Nucor Corporation Senior Officers Long-Term Incentive Plan and the Nucor Corporation Senior Officers Annual Incentive Plan authorized the award of shares of common stock to officers subject to certain conditions and restrictions. Effective January 1, 2018, the Company adopted supplements to the Omnibus Plan with terms that permit the award of shares of common stock to officers subject to the conditions and restrictions described below, which are substantially similar to those of the expired Senior Officers Long-Term Incentive Plan and Senior Officers Annual Incentive Plan. The expired Senior Officers Long-Term Incentive Plan, together with the applicable supplement, is referred to below as the “LTIP,” and the expired Senior Officers Annual Incentive Plan, together with the applicable supplement, is referred to below as the “AIP.”

The LTIP provides for the award of shares of restricted common stock at the end of each LTIP performance measurement period at no cost to officers if certain financial performance goals are met during the period. One-third of the LTIP restricted stock award vests upon each of the first three anniversaries of the award date or, if earlier, upon the officer’s attainment of age 55 while employed by Nucor. Although participants are entitled to cash dividends and may vote such awarded shares, the sale or transfer of such shares is limited during the restricted period.

The AIP provides for the payment of annual cash incentive awards. An AIP participant may elect, however, to defer payment of up to one-half of an AIP award. In such event, the deferred AIP award is converted into common stock units and credited with a deferral incentive, in the form of additional common stock units, equal to 25% of the number of common stock units attributable to the deferred AIP award. Common stock units attributable to deferred AIP awards are fully vested. Common stock units credited as a deferral incentive vest upon the AIP participant’s attainment of age 55 while employed by Nucor. Vested common stock units are paid to AIP participants in the form of shares of common stock following their termination of employment with Nucor.

A summary of Nucor’s restricted stock activity under the AIP and the LTIP is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units and restricted    stock awards:
Unvested at beginning of year		209		$	108.55		107		$	57.17		127		$	49.94
Granted		414		$	171.38		465		$	128.62		262		$	65.61
Vested		(406	)	$	152.68		(356	)	$	119.29		(273	)	$	62.17
Canceled		(7	)	$	154.05		(7	)	$	113.86		(9	)	$	48.75
Unvested at end of year		210		$	145.55		209		$	108.55		107		$	57.17

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 $37.8 million in 2023 ($51.0 million in 2022 and $79.9 million in 2021). The total fair value of shares vested during 2023 was $68.8 million ($45.9 million in 2022 and $19.6 million in 2021). As of December 31, 2023, unrecognized compensation expense related to unvested restricted stock awards was $7.5 million, which is expected to be recognized over a weighted-average period of 1.6 years.

17. Employee Benefit Plans

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 $611.1 million in 2023 ($994.2 million in 2022 and $869.9 million in 2021). The related liability for these benefits is included in salaries, wages and related accruals in the consolidated balance sheets.

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Nucor also has a medical plan covering certain eligible early retirees. The unfunded obligation, included in deferred credits and other liabilities in the consolidated balance sheets, totaled $33.2 million at December 31, 2023 ($25.6 million at December 31, 2022). The expense associated with this early retiree medical plan totaled $0.3 million in 2023 ($2.3 million in 2022 and $1.8 million in 2021). The discount rate used by Nucor in determining its benefit obligation was 5.01% in 2023 (5.24% in 2022 and 2.81% in 2021). The health care cost increase trend rate used was 6.8% in 2023 (6.3% in 2022 and 5.3% in 2021). The health care cost increase trend rate is projected to decline gradually to 4.0% by 2049.

18. Interest (Income) Expense

The components of net interest (income) expense are as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Interest expense	$	245,954		$	218,911		$	163,121
Interest income		(275,586	)		(48,695	)		(4,267	)
Interest expense, net	$	(29,632	)	$	170,216		$	158,854

Interest paid was $257.1 million in 2023 ($229.5 million in 2022 and $170.7 million in 2021).

19. Income Taxes

Components of earnings before income taxes and noncontrolling interests are as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
United States	$	6,203,409	$	10,212,850	$	9,076,921
Foreign		69,348		31,994		123,937
	$	6,272,757	$	10,244,844	$	9,200,858

The provision for income taxes consists of the following (in thousands):

	Year Ended December 31,
	2023			2022			2021
Current:
Federal	$	1,127,369		$	1,894,848		$	1,753,376
State		194,186			304,323			293,752
Foreign		16,992			12,882			19,695
Total current		1,338,547			2,212,053			2,066,823
Deferred:
Federal		20,621			77,961			10,916
State		(18,738	)		(120,440	)		(3,042	)
Foreign		19,536			(4,370	)		3,791
Total deferred		21,419			(46,849	)		11,665
Total provision for income taxes	$	1,359,966		$	2,165,204		$	2,078,488

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A reconciliation of the federal statutory tax rate (21%) to the total provision is as follows:

	Year Ended December 31,
	2023			2022			2021
Taxes computed at statutory rate		21.00	%		21.00	%		21.00	%
State income taxes, net of federal income tax benefit		2.14	%		1.41	%		2.49	%
Federal research credit		-0.51	%		-0.10	%		-0.07	%
Equity in losses of foreign joint venture		0.17	%		0.11	%		—
Foreign rate differential		0.10	%		—			-0.03	%
Noncontrolling interests		-1.27	%		-0.85	%		-0.67	%
Other, net		0.05	%		-0.44	%		-0.13	%
Provision for income taxes		21.68	%		21.13	%		22.59	%

For the year ended December 31, 2023, the effective tax rate on continuing operations was 21.68% compared to 21.13% for the year ended December 31, 2022.

The 2023 effective tax rate includes an increased impact, when compared to 2022, from the Federal research credit and Noncontrolling interests lines. The 2022 effective tax rate included a net tax benefit of $76.4 million (-0.75%) for state tax credits, and a net tax benefit of $88.0 million (-0.86%) related to a change in the valuation allowance of a state deferred tax asset. Both items are included in the State income taxes, net of federal income tax benefit line.

Deferred tax assets and liabilities resulted from the following (in thousands):

	December 31,
	2023			2022
Deferred tax assets:
Accrued liabilities and reserves	$	252,794		$	236,132
Allowance for doubtful accounts		39,102			55,160
Inventory		141,460			143,384
Research and development expenditures		133,935			42,109
Post-retirement benefits		8,571			7,997
Hedges		5,146			—
Net operating loss carryforward		93,794			30,295
Tax credit carryforwards		215,630			162,498
Other deferred tax assets		12,016			10,894
Valuation allowance		(210,084	)		(77,510	)
Total deferred tax assets		692,364			610,959
Deferred tax liabilities:
Holdbacks and amounts not due under contracts		(15,714	)		(16,016	)
Hedges		—			(7,426	)
Intangibles		(706,174	)		(724,450	)
Property, plant and equipment		(1,170,080	)		(1,050,579	)
Other deferred tax liabilities		(48,579	)		(51,726	)
Book/Tax differences on debt modifications		(43,869	)		(45,458	)
Total deferred tax liabilities		(1,984,416	)		(1,895,655	)
Total net deferred tax liabilities	$	(1,292,052	)	$	(1,284,696	)

Non-current deferred tax assets included in other assets in the consolidated balance sheets were $40.7 million at December 31, 2023 ($19.3 million at December 31, 2022). Non-current deferred tax liabilities included in deferred credits and other liabilities in the consolidated balance sheets were $1.33 billion at December 31, 2023 ( $1.30 billion at December 31, 2022). Current federal and state income taxes receivable included in other current assets in the consolidated balance sheets were $346.1 million at December 31, 2023 ($564.7 million at December 31, 2022). Nucor paid $1.06 billion in net federal, state and foreign income taxes in 2023 ($2.63 billion and $1.68 billion in 2022 and 2021, respectively).

Nucor has not recognized deferred tax liabilities on its investment in foreign subsidiaries with undistributed earnings that satisfy the permanent reinvestment requirements (the deferred tax liabilities

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on the investments not permanently reinvested are immaterial). While Nucor considers future earnings to be permanently reinvested, it is expected that potential future distributions will likely be nontaxable. If this assertion of permanent reinvestment were to change, there may be deferred tax liabilities related to the withholding tax impacts on the actual distribution of certain cumulative undistributed foreign earnings, but the Company believes this amount to be immaterial.

State NOL carryforwards were $185.1 million at December 31, 2023 ($285.4 million at December 31, 2022). If unused, they will expire between 2024 and 2043. Foreign NOL carryforwards were $325.6 million at December 31, 2023 ($79.4 million at December 31, 2022). If unused, the foreign NOL carryforwards will expire between 2026 and 2042.

At December 31, 2023, Nucor had approximately $188.3 million of unrecognized tax benefits, of which $187.6 million would affect Nucor's effective tax rate, if recognized. At December 31, 2022, Nucor had approximately $141.7 million of unrecognized tax benefits, of which $141.1 million would affect Nucor's effective tax rate, if recognized.

A reconciliation of the beginning and ending amounts of unrecognized tax benefits recorded in deferred credits and other liabilities in the consolidated balance sheets is as follows (in thousands):

	December 31,
	2023			2022			2021
Balance at beginning of year	$	141,692		$	95,136		$	47,965
Additions based on tax positions related to current year		44,113			54,438			52,853
Reductions based on tax positions related to    current year		—			—			—
Additions based on tax positions related to prior years		9,886			13,473			2,405
Reductions based on tax positions related to    prior years		(496	)		(9,275	)		(3,060	)
Reductions due to settlements with taxing authorities		—			—			—
Reductions due to statute of limitations lapse		(6,941	)		(12,080	)		(5,027	)
Balance at end of year	$	188,254		$	141,692		$	95,136

We estimate that in the next 12 months, our gross uncertain tax positions, exclusive of interest, could decrease by as much as $5.6 million, as a result of the expiration of the applicable statute of limitations.

During 2023, Nucor recognized $10.4 million of expense in interest and penalties ($9.4 million of expense in 2022 and $5.5 million of expense in 2021). The interest and penalties are included in interest expense, net and marketing, administrative and other expenses, respectively, in the consolidated statements of earnings. As of December 31, 2023, Nucor had approximately $37.4 million of accrued interest and penalties related to uncertain tax positions (approximately $26.9 million at December 31, 2022). The accrued interest and penalties are included in accrued expenses and other current liabilities and deferred credits and other liabilities, respectively, in the consolidated balance sheets.

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 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 Harris 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).

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20. Accumulated Other Comprehensive Income (Loss)

The following tables reflect the changes in accumulated other comprehensive income (loss) by component (in thousands):

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan			Total
December 31, 2022	$	26,100		$	(180,216	)	$	16,599		$	(137,517	)
Other comprehensive income    (loss) before reclassifications		(52,077	)		21,041			(4,787	)		(35,823	)
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (1)		12,077			—			(809	)		11,268
Net current-period other    comprehensive income (loss)		(40,000	)		21,041			(5,596	)		(24,555	)
December 31, 2023	$	(13,900	)	$	(159,175	)	$	11,003		$	(162,072	)

(1)Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan		Total
December 31, 2021	$	1,112		$	(124,868	)	$	8,474	$	(115,282	)
Other comprehensive income    (loss) before reclassifications		76,542			(55,348	)		6,328		27,522
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (2)		(51,554	)		—			1,797		(49,757	)
Net current-period other    comprehensive income (loss)		24,988			(55,348	)		8,125		(22,235	)
December 31, 2022	$	26,100		$	(180,216	)	$	16,599	$	(137,517	)

(2)Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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21. Earnings Per Share

The computations of basic and diluted net earnings per share are as follows (in thousands, except per share data):

Year Ended December 31,	2023			2022			2021
Basic net earnings per share:
Basic net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,946	)		(31,172	)		(32,311	)
Net earnings available to common stockholders	$	4,507,855		$	7,576,165		$	6,795,150
Basic average shares outstanding		249,773			262,348			292,491
Basic net earnings per share	$	18.05		$	28.88		$	23.23
Diluted net earnings per share:
Diluted net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,897	)		(31,057	)		(32,190	)
Net earnings available to common stockholders	$	4,507,904		$	7,576,280		$	6,795,271
Diluted average shares outstanding:
Basic average shares outstanding		249,773			262,348			292,491
Dilutive effect of stock options and other		639			828			899
		250,412			263,176			293,390
Diluted net earnings per share	$	18.00		$	28.79		$	23.16

The following stock options were excluded from the computation of diluted net earnings per share because their effect would have been anti-dilutive (shares in thousands):

Year Ended December 31,	2023		2022		2021
Anti-dilutive stock options:
Weighted-average shares		-		25		145
Weighted-average exercise price	$	-	$	130.71	$	91.06

22. 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 businesses; rebar distribution businesses; and Nucor’s equity method investments in NuMit and NJSM (the latter of which Nucor acquired an additional 1% interest in the fourth quarter of 2023, bringing our total equity ownership to a 51% controlling interest). 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, steel grating, tubular products businesses, steel racking, piling products business, wire and wire mesh, overhead doors, 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, two facilities that produce direct reduced iron used by the steel mills; and our natural gas production operations.

Corporate/eliminations include items such as net interest expense on long-term debt, 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.

79

Nucor’s results by segment were as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Net sales to external customers:
Steel mills	$	20,092,662		$	24,189,858		$	24,145,396
Steel products		12,758,939			15,060,328			9,727,943
Raw materials		1,861,900			2,262,281			2,610,600
	$	34,713,501		$	41,512,467		$	36,483,939
Intercompany sales:
Steel mills	$	4,812,479		$	5,859,367		$	6,297,688
Steel products		455,816			547,219			360,063
Raw materials		12,363,577			13,715,176			15,762,685
Corporate/eliminations		(17,631,872	)		(20,121,762	)		(22,420,436	)
	$	—		$	—		$	—
Depreciation expense:
Steel mills	$	610,510		$	529,005		$	465,733
Steel products		131,189			115,501			99,248
Raw materials		173,657			171,060			159,886
Corporate		15,229			11,126			10,539
	$	930,585		$	826,692		$	735,406
Amortization expense:
Steel mills	$	7,829		$	7,829		$	7,829
Steel products		202,129			199,379			93,160
Raw materials		27,772			27,734			28,168
	$	237,730		$	234,942		$	129,157
Earnings before income taxes and noncontrolling    interests:
Steel mills	$	3,712,470		$	7,199,087		$	9,735,020
Steel products		3,443,950			4,093,105			1,291,450
Raw materials		253,506			496,823			549,956
Corporate/eliminations		(1,137,169	)		(1,544,171	)		(2,375,568	)
	$	6,272,757		$	10,244,844		$	9,200,858
Segment assets:
Steel mills	$	15,407,266		$	14,157,229		$	13,235,463
Steel products		10,914,870			12,087,145			7,845,010
Raw materials		3,546,759			3,383,114			3,870,806
Corporate/eliminations		5,471,604			2,851,722			871,793
	$	35,340,499		$	32,479,210		$	25,823,072
Capital expenditures:
Steel mills	$	1,440,478		$	1,453,277		$	1,336,276
Steel products		367,170			267,128			187,152
Raw materials		352,642			181,680			128,765
Corporate		54,920			50,380			48,171
	$	2,215,210		$	1,952,465		$	1,700,364

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Net sales by product were as follows (in thousands). Further product group breakdown is impracticable.

	Year Ended December 31,
	2023		2022		2021
Net sales to external customers:
Sheet	$	9,146,676	$	11,437,799	$	12,675,679
Bar		5,993,751		7,031,798		6,039,187
Structural		2,429,211		2,928,072		2,597,768
Plate		2,523,024		2,792,188		2,832,762
Tubular Products		1,588,211		1,944,532		2,194,732
Rebar Fabrication		2,181,929		2,205,960		1,794,658
Joist		2,211,965		2,958,235		1,351,235
Deck		1,712,474		2,392,438		1,167,162
Other Steel Products		5,064,360		5,559,164		3,220,155
Raw Materials		1,861,900		2,262,281		2,610,601
	$	34,713,501	$	41,512,467	$	36,483,939

23. Revenue

Nucor recognizes revenue when obligations under the terms of contracts with our customers are satisfied and collection is reasonably assured; generally, obligations under the terms of contracts are satisfied upon shipment or when control is transferred. Revenue is measured as the amount of consideration expected to be received in exchange for transferring the goods. In addition, revenue is deferred when cash payments are received or due in advance of performance.

The durations of Nucor’s contracts with customers are generally one year or less. Customer payment terms are generally 30 days.

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 $313.8 million as of December 31, 2023 ($285.0 million as of December 31, 2022), and are included in accrued expenses and other current liabilities in the consolidated balance sheets. The amount of revenue reclassified from the December 31, 2022 contract liabilities balance during 2023 was approximately $191.8 million.

Nucor disaggregates its revenues by major source in the same manner as presented in the net sales by product table in the segment footnote (see Note 22).

Steel Mills Segment

Sheet – For the majority of sheet products, we transfer control and recognize a sale when we ship the product from the sheet mill to our customer. The amount of consideration we receive and revenue we recognize for spot market sales are based upon prevailing prices at the time of sale. The amount of consideration we receive and revenue we recognize for contract customers are based primarily on pricing formulas that incorporate monthly or quarterly price adjustments which reflect changes in the current market-based indices and/or raw material costs near the time of shipment.

The amount of tons sold to contract customers at any given time depends on a variety of factors, including our consideration of current and future market conditions, our strategy to appropriately balance spot and contract tons in a manner to meet our customers’ requirements while considering the expected profitability, our desire to sustain a diversified customer base and our end-use customers’ perceptions about future market conditions. These contracts are typically one year or less. Contract sales within the steel mills segment are most notable in our sheet operations, as it is common for contract sales to account for the majority of sheet sales in a given year.

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Bar, Structural and Plate – For the majority of bar, structural and plate products, we transfer control and recognize a sale when we ship the product from the mill to our customer. The significant majority of bar, structural and plate product sales are spot market sales, and the amount of consideration we receive and revenue we recognize for those sales are based upon prevailing prices at the time of sale.

Steel Products Segment

Tubular Products – The tubular products businesses transfer control and recognize a sale when the products are shipped from our operating locations to our customers. The majority of tubular product sales are spot market sales, and the amount of consideration we receive and revenue we recognize for those sales are based upon prevailing prices at the time of sale.

Rebar Fabrication – The majority of revenue is derived from contracts with customers for the supply of fabricated rebar. As the majority of contracts with customers are fixed price contracts to complete a job, control transfers over time and revenue is recognized (if collection is reasonably assured) over time using an input method, based on the amount of rebar shipped from the Company’s operating locations relative to the total expected amount of rebar required to complete the job.

For contracts to supply fabricated rebar and install it at the customer’s job site, there are two performance obligations: (1) the supply of the fabricated rebar and (2) the installation of the supplied rebar at the customer’s job site. For the supply of fabricated rebar performance obligation, the transaction price allocated to this performance obligation is determined at the start of the contract, based on the awarded contract price for the supplied fabricated rebar and revenue is recognized over time based on the amount of rebar shipped from the Company’s operating locations relative to the total expected amount of rebar required to complete the job. For the installation of supplied rebar performance obligation, the transaction price allocated to this performance obligation is determined at the start of the contract, based on the awarded contract price for the installation of fabricated rebar and revenue is recognized over time based on the amount of rebar installed relative to the total expected amount of rebar required to be installed to complete the job.

While a majority of the contracts with customers are fixed price contracts to complete a job, variable consideration can occur from contract modifications relating to change orders and price escalations caused by changes in underlying material costs. In these situations, the additional variable consideration is recognized cumulatively in the period in which the contract modification is approved and collection is reasonably assured unless the change order relates to additional distinct goods or services at standalone selling prices in which case they are accounted for prospectively. Management reviews these situations on a case-by-case basis and considers a variety of factors, including relevant experience with similar types of performance obligations, the Company’s experience with the customer and collectability considerations.

Other Steel Products – Other steel products include our joist, deck, cold finish, metal building systems, insulated metal panels, piling, overhead doors, and the other remaining businesses that comprise the steel products segment. Generally, for these businesses, we transfer control and recognize a sale when we ship the product from our operating locations to our customers. The amount of consideration we receive and revenue we recognize for those sales are agreed upon with the customers before the product is shipped.

Included in the other steel products businesses is Nucor Warehouse Systems (“NWS”). The majority of NWS’s revenues are related to supply and installation contracts. Revenue on NWS’s supply and installation contracts is primarily recognized over time, typically between three and six months, using the cost-to-cost input measure (e.g., costs incurred to date relative to total estimated costs at completion) to measure progress because it best depicts the transfer of assets to the customer which occurs as the Company incurs costs on the contracts.

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Raw Materials Segment

The majority of the raw materials segment revenue from outside customers is generated by DJJ. We transfer control and recognize a sale based on the terms of the agreement with the customer, which is generally when the product has met the delivery requirements. The amount of consideration we receive and revenue we recognize for those sales is based on the contract with the customer, which generally reflects current market prices at the time the contract is entered into.

24. Restricted Cash and Cash Equivalents

As of December 31, 2023, restricted cash and cash equivalents totaled $3.5 million ($80.4 million as of December 31, 2022), and primarily consisted of net proceeds from the issuance of $197.0 million in August 2021 and $162.6 million in July 2020 of 40-year variable-rate Green Bonds. The restricted cash and cash equivalents related to the debt issuance are being held in a trust account and will be used to partially fund the capital costs, in particular the expenditures associated with pollution prevention and control (including waste recycling and waste reduction), of the construction of Nucor’s plate mill located in Brandenburg, Kentucky. Funds will be disbursed from the trust account as qualified expenditures for the construction of the Brandenburg facility are made ($78.9 million during 2023 and $64.2 million during 2022). Interest earned on funds held in the trust account is subject to the same usage requirements as the bond proceeds principal. Since the restricted cash, interest and dividends must be used for the construction of the Brandenburg facility and relate to a long-term liability, the entire balance has been classified as a non-current asset.

25. Acquisitions

Acquisition of Additional Interest in NJSM

On October 27, 2023, Nucor used cash on hand to acquire an additional 1% equity interest in NJSM bringing our total equity ownership to a 51% controlling interest. We believe this acquisition allows NJSM to benefit from Nucor's galvanized sheet sales expertise in North America.

Prior to this transaction, we accounted for our 50% ownership in NJSM under the equity method. As part of the purchase price allocation for this step acquisition, we remeasured our previously held interest as of the acquisition date which resulted in a $21.0 million loss recorded in marketing, administrative and other expenses. Neither our previously held equity interest in NJSM nor the loss on remeasuring the equity interest are material to our financial statements.

We allocated the purchase price for NJSM to its individual assets acquired and liabilities assumed. While the purchase price allocation is substantially complete, it is still preliminary and subject to change.

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The following table summarizes the fair values of the assets acquired and liabilities assumed of NJSM, as well as the fair value of the 49% noncontrolling interest not acquired by Nucor, as of October 27, 2023, the date of acquisition (in thousands):

Cash	$	11,050
Accounts receivable		10,968
Inventory		44,661
Other current assets		18,053
Property, plant and equipment		257,537
Goodwill		—
Other intangible assets		—
Other assets		612
Total assets acquired		342,881
Short-term debt		95,000
Current portion of long-term debt		50,000
Other current liabilities		13,502
Long-term debt due after one year		30,000
Other liabilities		1,379
Total liabilities assumed		189,881
Net assets acquired at 100%		153,000
Less: fair value of Noncontrolling interest		74,970
Net assets acquired at 51%	$	78,030

The determination of the fair value of noncontrolling interest was calculated using the implied value of 100% of the enterprise value as the purchase price included an immaterial implied control premium on a per-share basis and the noncontrolling interest shareholder will benefit from the transaction and participate in the economic benefits of NJSM after the acquisition.

The NJSM financial results were included as part of the steel mills segment (see Note 22) beginning on October 27, 2023, the acquisition date. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of NJSM and, therefore, this information is not presented.

Acquisition of C.H.I.

On June 24, 2022, Nucor used cash on hand to acquire the assets of C.H.I. for a purchase price, net of cash acquired, of approximately $3.00 billion. C.H.I. is a leading manufacturer of overhead doors for residential and commercial markets in the United States and Canada. Commercial overhead doors are used in warehousing and retail, areas that Nucor has focused its attention on recently through other value-added products such as insulated metal panels (CENTRIA, Metl-Span and TrueCore brands) and steel racking solutions (Nucor Warehouse Systems). It is expected that the C.H.I. acquisition also will benefit from Nucor’s recent paint line investments at its Hickman, Arkansas and Crawfordsville, Indiana sheet mills. The C.H.I. financial results are included as part of the steel products segment (see Note 22) beginning on June 24, 2022, the date Nucor acquired it.

We allocated the purchase price for C.H.I. to its individual assets acquired and liabilities assumed.

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The following table summarizes the fair values of the assets acquired and liabilities assumed of C.H.I. as of June 24, 2022, the date of acquisition (in thousands):

Cash	$	159,066
Accounts receivable		77,530
Inventory		52,515
Other current assets		18,177
Property, plant and equipment		117,392
Goodwill		1,033,192
Other intangible assets		2,389,180
Other assets		9,559
Total assets acquired		3,856,611
Current liabilities		75,146
Deferred income taxes		578,019
Other liabilities		7,509
Total liabilities assumed		660,674
Net assets acquired	$	3,195,937

The following table summarizes the purchase price allocation to the identifiable intangible assets of C.H.I. as of June 24, 2022, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	2,242,000	25 years
Trademarks and trade names		147,000	13 years
Backlog		180	1 year
	$	2,389,180

The goodwill of $1.04 billion is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $5.6 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of C.H.I. and, therefore, this information is not presented.

Acquisition of CSI

On February 1, 2022, Nucor used cash on hand to acquire a 51% controlling ownership position in CSI by purchasing a 50% equity interest from a subsidiary of Vale S.A. for a cash purchase price of approximately $400.0 million, adjusted for net debt and working capital at closing, as well as a 1% equity interest from JFE Steel Corporation. CSI is a flat-rolled steel converter located in California with the capability to produce more than two million tons of finished steel and steel products annually. The company has five product lines, including hot rolled, pickled and oiled, cold rolled, galvanized and electric resistance welded (“ERW”) pipe. Key end-use markets served by CSI include customers in the construction, service center and energy industries. We believe this acquisition helps give Nucor a strong presence in the Western region of the United States and grows our ability to produce a wide range of value-added sheet products. The CSI financial results were included as part of the steel mills segment (see Note 22) beginning on February 1, 2022, the date Nucor acquired its 51% controlling ownership position.

We allocated the purchase price for CSI to its individual assets acquired and liabilities assumed. The purchase price allocation is complete.

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The following table summarizes the fair values of 100% of the assets and liabilities of CSI, as well as the fair value of the 49% noncontrolling interest not acquired by Nucor, as of February 1, 2022, the date Nucor acquired its 51% controlling ownership position (in thousands):

Cash	$	98,537
Accounts receivable		159,257
Inventory		354,614
Other current assets		5,298
Property, plant and equipment		566,714
Goodwill		62,011
Other intangible assets		—
Other assets		7,071
Total assets acquired		1,253,502
Current portion of long-term debt		9,826
Other current liabilities		162,808
Long-term debt due after one year		67,866
Other liabilities		139,947
Total liabilities assumed		380,447
Net assets acquired at 100%		873,055
Less: Fair value of noncontrolling interest		427,797
Net assets acquired at 51%	$	445,258

The determination of the fair value of the noncontrolling interest was calculated using the implied value of 100% of the enterprise value of the business using the purchase price as the purchase price did not include a control premium on a per-share basis and the noncontrolling interest shareholder will participate equally in the economic benefits of CSI after the acquisition.

The goodwill of $62.0 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel mills segment (see Note 8). The goodwill is attributable to the assembled workforce acquired, expanding our Western United States presence and CSI’s value-added product capabilities. None of the goodwill is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of CSI and, therefore, this information is not presented.

Acquisition of IMP Business of Cornerstone

On August 9, 2021, Nucor used cash on hand to acquire the assets of the insulated metal panels, or, IMP, business of Cornerstone Building Brands, Inc. (“Cornerstone”) for a purchase price of $1.00 billion. The Company believes this acquisition will broaden the value-added solutions that Nucor Buildings group provides to targeted end markets such as warehousing, distribution and data centers. We expect these end-use markets to continue to grow in the coming years and that the use of IMP products within them will also increase. IMPs facilitate cost-effective climate control in the built environment and reduce energy usage and overall operations-related GHG emissions for owners and lessees. The acquired IMP business is comprised of two industry leading brands, CENTRIA and Metl-Span, and has seven manufacturing facilities located throughout North America, complementing Nucor’s existing IMP business, TrueCore, LLC. The IMP business financial results are included as part of the steel products segment (see Note 22) beginning on August 9, 2021, the date Nucor acquired it.

We have allocated the purchase price for the IMP business to its individual assets acquired and liabilities assumed.

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The following table summarizes the fair values of the assets acquired and liabilities assumed of the IMP business as of August 9, 2021, the date of acquisition (in thousands):

Cash	$	—
Accounts receivable		47,037
Inventory		73,000
Other current assets		4,478
Property, plant and equipment		102,966
Goodwill		480,167
Other intangible assets		364,000
Other assets		13,515
Total assets acquired		1,085,163
Current liabilities		46,620
Other liabilities		12,855
Total liabilities assumed		59,475
Net assets acquired	$	1,025,688

The following table summarizes the purchase price allocation to the identifiable intangible assets of the IMP business as of August 9, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	309,000	10 years
Trademarks and trade name		45,000	10 years
Backlog		10,000	1 year
	$	364,000

The goodwill of $480.2 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $480.2 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of the IMP business and, therefore, this information is not presented.

Acquisition of Hannibal

On August 20, 2021, Nucor used cash on hand to acquire Hannibal for a purchase price of $370.0 million. Nucor purchased 100% of Hannibal's outstanding shares from its Employee Stock Ownership Plan. Hannibal is a leading national provider of steel racking solutions to warehouses. We expect that Hannibal’s business, serving customers in the e-commerce, industrial, food storage and retail segments, will also continue to grow in the coming years. Hannibal has manufacturing facilities in Los Angeles and Houston, as well as three distribution centers. Hannibal’s financial results are included as part of the steel products segment (see Note 22) beginning on August 20, 2021, the date Nucor acquired it.

We have allocated the purchase price for Hannibal to its individual assets acquired and liabilities assumed.

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The following table summarizes the fair values of the assets acquired and liabilities assumed of Hannibal as of August 20, 2021, the date of acquisition (in thousands):

Cash	$	124,655
Accounts receivable		115,728
Inventory		65,005
Other current assets		2,113
Property, plant and equipment		116,955
Goodwill		84,922
Other intangible assets		201,700
Other assets		8,776
Total assets acquired		719,854
Current liabilities		228,750
Finance lease obligations		80,124
Other liabilities		13,155
Total liabilities assumed		322,029
Net assets acquired	$	397,825

The following table summarizes the purchase price allocation to the identifiable intangible assets of Hannibal as of August 20, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	144,000	10 years
Trademarks and trade name		26,000	7 years
Backlog		31,700	1 year
	$	201,700

The goodwill of $84.9 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $84.9 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of Hannibal and, therefore, this information is not presented.

Other Acquisitions

Other smaller acquisitions, exclusive of purchase price adjustments made and net of cash acquired, totaled approximately $70.8 million, $169.6 million and $134.8 million in 2023, 2022 and 2021, respectively. Pro-forma results of operations for the Company would not be materially different if the aggregate acquisitions made during 2023, 2022 and 2021 were included and, therefore, this information is not presented.

26. Quarterly Information (Unaudited)

	(in thousands, except per share data)
	Year Ended December 31, 2023
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	8,709,980	$	9,523,256	$	8,775,734	$	7,704,531
Gross margin		1,998,202		2,501,674		1,920,800		1,393,718
Net earnings before noncontrolling interests		1,231,629		1,587,075		1,221,255		872,832
Net earnings attributable to Nucor    stockholders		1,136,542		1,461,354		1,141,506		785,399
Net earnings per share:
Basic	$	4.47	$	5.82	$	4.58	$	3.17
Diluted	$	4.45	$	5.81	$	4.57	$	3.16

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	(in thousands, except per share data)
	Year Ended December 31, 2022
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	10,493,282	$	11,794,474	$	10,500,755	$	8,723,956
Gross margin		3,458,139		4,104,263		2,843,391		2,097,487
Net earnings before noncontrolling interests (1)		2,227,115		2,727,237		1,799,043		1,326,245
Net earnings attributable to Nucor    stockholders (1)		2,095,623		2,561,233		1,694,748		1,255,733
Net earnings per share:
Basic	$	7.69	$	9.69	$	6.51	$	4.90
Diluted	$	7.67	$	9.67	$	6.50	$	4.89

(1)Fourth quarter of 2022 results include an after-tax net benefit of $60.4 million related to state tax credits, an after-tax net benefit of $88.0 million related to a change in the valuation allowance of a state deferred tax asset, and a pre-tax $96.0 million write-off of the remaining carrying value of our leasehold interest in unproved oil and gas properties. This charge is included in the raw materials segment.

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Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures – As of the end of the period covered by this report, the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures. Based upon that evaluation, the Chief Executive Officer and the Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of the evaluation date.

Changes in Internal Control Over Financial Reporting – There were no changes in our internal control over financial reporting during the quarter ended December 31, 2023 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Report on Internal Control Over Financial Reporting – Management’s report on internal control over financial reporting required by Section 404 of the Sarbanes-Oxley Act of 2002 and the attestation report of PricewaterhouseCoopers LLP, an independent registered public accounting firm, on the effectiveness of Nucor’s internal control over financial reporting as of December 31, 2023 are included in “Item 8. Financial Statements and Supplementary Data” and incorporated herein by reference.

Item 9B. Other Information.

Insider Trading Arrangements - During the quarter ended December 31, 2023, none of our directors or officers (as defined in Rule 16a-1(f) under the Exchange Act) adopted, modified or terminated a "Rule 10b5-1 trading arrangement" or a "non-Rule 10b5-1 trading arrangement" (as such terms are defined in Item 408 of Regulation S-K).

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

Not applicable.

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PART III

Item 10. Directors, Executive Officers and Corporate Governance.

The information required by this item with respect to Nucor’s executive officers appears in Part I of this report under the heading Information About Our Executive Officers and is incorporated herein by reference. The other information required by this item is incorporated herein by reference from Nucor’s definitive proxy statement for our 2024 Annual Meeting of Stockholders, which we expect to file with the SEC pursuant to Regulation 14A not later than 120 days after December 31, 2023 (the “Proxy Statement”), under the headings Election of Directors; Information Concerning Experience, Qualifications, Attributes and Skills of the Nominees; and Corporate Governance and Board of Directors.

Nucor has adopted a Code of Ethics for Senior Financial Professionals (the “Code of Ethics”), which is intended to qualify as a “code of ethics” within the meaning of Item 406 of Regulation S-K of the Securities Exchange Act of 1934, as amended. The Code of Ethics applies to our principal executive officer, principal financial officer, principal accounting officer or controller, and persons performing similar functions. The Code of Ethics is available on our website, www.nucor.com.

We will disclose information pertaining to any amendment to, or waiver from, the provisions of the Code of Ethics that apply to our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relate to any element of the Code of Ethics enumerated in the SEC rules and regulations by posting this information on our website, www.nucor.com. The information contained on our website or available by hyperlink from our website is not a part of this report and is not incorporated into this report or any other documents we file with, or furnish to, the SEC.

Item 11. Executive Compensation.

The information required by this item is incorporated herein by reference from the Proxy Statement under the headings Executive Officer Compensation; Director Compensation; Report of the Compensation and Executive Development Committee; and Board’s Role in Risk Oversight.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

The information required by this item is incorporated herein by reference from the Proxy Statement under the headings Security Ownership of Management and Certain Beneficial Owners and Equity Compensation Plan Information.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information required by this item is incorporated herein by reference from the Proxy Statement under the heading Corporate Governance and Board of Directors.

Item 14. Principal Accountant Fees and Services.

The information required by this item is incorporated herein by reference from the Proxy Statement under the heading Fees Paid to Independent Registered Public Accounting Firm.

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PART IV

Item 15. Exhibits and Financial Statement Schedules.

Financial Statements:

The following consolidated financial statements and notes thereto, management’s report on internal control over financial reporting and the report of independent registered public accounting firm are included in “Item 8. Financial Statements and Supplementary Data”:

•Management’s Report on Internal Control Over Financial Reporting

•Report of Independent Registered Public Accounting Firm

•Consolidated Balance Sheets—December 31, 2023 and 2022

•Consolidated Statements of Earnings—Years Ended December 31, 2023, 2022 and 2021

•Consolidated Statements of Comprehensive Income—Years Ended December 31, 2023, 2022 and 2021

•Consolidated Statements of Stockholders’ Equity—Years Ended December 31, 2023, 2022 and 2021

•Consolidated Statements of Cash Flows—Years Ended December 31, 2023, 2022 and 2021

•Notes to Consolidated Financial Statements

Schedule II is not presented as all applicable information is presented in the consolidated financial statements and notes thereto.

Exhibits:

3	Restated Certificate of Incorporation of Nucor Corporation (incorporated by reference to Exhibit 3.3 to the Current Report on Form 8-K filed September 14, 2010 (File No. 001-04119))
3(i)	Bylaws of Nucor Corporation as amended and restated February 22, 2021 (incorporated by reference to Exhibit 3.1 to the Current Report on Form 8-K filed February 24, 2021 (File No. 001-04119))
4	Description of Securities of Nucor Corporation (incorporated by reference to Exhibit 4 to the Annual Report on Form 10-K for the year ended December 31, 2020 (File No. 001-04119))
4(i)	Indenture, dated as of January 12, 1999, between Nucor Corporation and The Bank of New York Mellon (formerly known as The Bank of New York), as trustee (incorporated by reference to Exhibit 4.1 to the Registration Statement on Form S-4 filed December 13, 2002 (File No. 333-101852))
4(ii)	Indenture, dated as of August 19, 2014, between Nucor Corporation and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.3 to the Registration Statement on Form S-3 filed August 20, 2014 (File No. 333-198263))
4(iii)	Third Supplemental Indenture, dated as of December 3, 2007, between Nucor Corporation and The Bank of New York Mellon (formerly known as The Bank of New York), as trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed December 4, 2007 (File No. 001-04119))
4(iv)	Sixth Supplemental Indenture, dated as of July 29, 2013, between Nucor Corporation and U.S. Bank National Association, as successor trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed July 29, 2013 (File No. 001-04119))
4(v)	Seventh Supplemental Indenture, dated as of December 10, 2014, among Nucor Corporation, The Bank of New York Mellon, as prior trustee, and U.S. Bank National Association, as successor trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed December 11, 2014 (File No. 001-04119))
4(vi)	First Supplemental Indenture, dated as of April 26, 2018, between Nucor Corporation and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed April 26, 2018 (File No. 001-04119))

92

4(vii)	Second Supplemental Indenture, dated as of May 22, 2020, between Nucor Corporation and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed May 22, 2020 (File No. 001-04119))
4(viii)	Third Supplemental Indenture, dated as of December 7, 2020, between Nucor Corporation and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed December 7, 2020 (File No. 001-04119))
4(ix)	Fourth Supplemental Indenture, dated as of March 11, 2022, between Nucor Corporation and U.S. Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed March 11, 2022 (File No. 001-04119))
4(x)	Fifth Supplemental Indenture, dated as of May 23, 2022, between Nucor Corporation and U.S. Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Current Report on Form 8-K filed May 23, 2022 (File No. 001-04119))
4(xi)	Form of 6.400% Notes due 2037 (included in Exhibit 4(iii) above) (incorporated by reference to Exhibit 4.4 to the Current Report on Form 8-K filed December 4, 2007 (File No. 001-04119))
4(xii)	Form of 5.200% Notes due 2043 (included in Exhibit 4(v) above) (incorporated by reference to Exhibit 4.3 to the Current Report on Form 8-K filed July 29, 2013 (File No. 001-04119))
4(xiii)	Form of 3.950% Notes due 2028 (included in Exhibit 4(vii) above) (incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed April 26, 2018 (File No. 001-04119))
4(xiv)	Form of 4.400% Notes due 2048 (included in Exhibit 4(vii) above) (incorporated by reference to Exhibit 4.3 to the Current Report on Form 8-K filed April 26, 2018 (File No. 001-04119))
4(xv)	Form of 2.000% Notes due 2025 (included in Exhibit 4(viii) above) (incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed May 22, 2020 (File No. 001-04119))
4(xvi)	Form of 2.700% Notes due 2030 (included in Exhibit 4(viii) above) (incorporated by reference to Exhibit 4.3 to the Current Report on Form 8-K filed May 22, 2020 (File No. 001-04119))
4(xvii)	Form of 2.979% Notes due 2055 (included in Exhibit 4(ix) above) (incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed December 7, 2020 (File No. 001-04119))
4(xviii)	Form of 3.125% Notes due 2032 (included in Exhibit 4(x) above) (incorporated by reference to Exhibit 4.3 to the Current Report on Form 8-K filed March 11, 2022 (File No. 001-04119))
4(xix)	Form of 3.850% Notes due 2052 (included in Exhibit 4(x) above) (incorporated by reference to Exhibit 4.4 to the Current Report on Form 8-K filed March 11, 2022 (File No. 001-04119))
4(xx)	Form of 3.950% Notes due 2025 (included in Exhibit 4(xi) above) (incorporated by reference to Exhibit 4.2 to the Current Report on Form 8-K filed May 23, 2022 (File No. 001-04119))
4(xxi)	Form of 4.300% Notes due 2027 (included in Exhibit 4(xi) above) (incorporated by reference to Exhibit 4.3 to the Current Report on Form 8-K filed May 23, 2022 (File No. 001-04119))
10	Fourth Amended and Restated Multi-Year Revolving Credit Agreement, dated as of November 5, 2021, by and among Nucor Corporation and certain subsidiaries of Nucor Corporation, as borrowers, Bank of America, N.A., as administrative agent, and the lenders party thereto (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended October 2, 2021 (File No. 001-04119))
10(i)	2005 Stock Option and Award Plan (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed May 17, 2005 (File No. 001-04119)) (#)
10(ii)	Amendment No. 1 to 2005 Stock Option and Award Plan (incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q for the quarter ended September 29, 2007 (File No. 001-04119)) (#)
10(iii)	2010 Stock Option and Award Plan (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q for the quarter ended July 3, 2010 (File No. 001-04119)) (#)
10(iv)	2014 Omnibus Incentive Compensation Plan, as amended and restated effective February 21, 2022 (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)

93

10(v)*	Amendment No.1, effective September 14, 2023, to 2014 Omnibus Incentive Compensation Plan, as amended and restated effective February 21, 2022 (#)
10(vi)	Senior Officers Annual Incentive Plan (Supplement to 2014 Omnibus Incentive Compensation Plan), as amended and restated effective February 21, 2022 (included in Exhibit 10(iv) above) (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)
10(vii)	Senior Officers Long-Term Incentive Plan (Supplement to 2014 Omnibus Incentive Compensation Plan), as amended and restated effective February 21, 2022 (included in Exhibit 10(iv) above) (incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)
10(viii)	Senior Officers Annual Incentive Plan, as amended and restated effective January 1, 2013, for awards granted prior to January 1, 2018 (incorporated by reference to Appendix A to the Definitive Proxy Statement on Schedule 14A filed March 27, 2013 (File No. 001-04119)) (#)
10(vix)	Senior Officers Long-Term Incentive Plan, as amended and restated effective January 1, 2013, for awards granted prior to January 1, 2018 (incorporated by reference to Appendix B to the Definitive Proxy Statement on Schedule 14A filed March 27, 2013 (File No. 001-04119)) (#)
10(x)	Form of Restricted Stock Unit Award Agreement – time-vested awards (incorporated by reference to Exhibit 10(iv) to the Annual Report on Form 10-K for the year ended December 31, 2005 (File No. 001-04119)) (#)
10(xi)	Form of Restricted Stock Unit Award Agreement – retirement-vested awards (incorporated by reference to Exhibit 10(v) to the Annual Report on Form 10-K for the year ended December 31, 2005 (File No. 001-04119)) (#)
10(xii)	Form of Restricted Stock Unit Award Agreement for Non-Employee Directors (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended April 1, 2006 (File No. 001-04119)) (#)
10(xiii)	Form of Award Agreement for Annual Stock Option Grants used for awards granted prior to May 8, 2014 (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended June 30, 2012 (File No. 001-04119)) (#)
10(xiv)	Form of Award Agreement for Annual Stock Option Grants used for awards granted after May 7, 2014 (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q for the quarter ended July 5, 2014 (File No. 001-04119)) (#)
10(xv)	Form of Restricted Share Unit Award Agreement used for awards granted after February 21, 2022 – time-vested awards (incorporated by reference to Exhibit 10.3 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)
10(xvi)	Form of Award Agreement for Annual Stock Option Grants used for awards granted after February 21, 2022 (incorporated by reference to Exhibit 10.4 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)
10(xvii)	Retirement, Separation, Waiver and Release Agreement, dated as of June 8, 2021, by and between Nucor Corporation and Craig A. Feldman (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended July 3, 2021 (File No. 001-04119)) (#)
10(xviii)	Retirement, Separation, Waiver and Release Agreement, dated as of May 24, 2022, by and between Nucor Corporation and James D. Frias (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K/A filed May 25, 2022 (File No. 001-04119)) (#)
10(xix)	Retirement, Separation, Waiver and Release Agreement, dated as of June 3, 2021, by and between Nucor Corporation and Raymond S. Napolitan, Jr. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K/A filed June 3, 2021 (File No. 001-04119)) (#)
10(xx)	Retirement, Separation, Waiver and Release Agreement, dated as of May 27, 2022, by and between Nucor Corporation and MaryEmily Slate (incorporated by reference to Exhibit 10.2 to the Quarterly Report on Form 10-Q for the quarter ended July 2, 2022 (File No. 001-04119)) (#)

94

10(xxi)	Executive Employment Agreement of Leon J. Topalian (incorporated by reference to Exhibit 10.9 to the Current Report on Form 8-K filed February 19, 2020 (File No. 001-04119)) (#)
10(xxii)	Executive Employment Agreement of D. Chad Utermark (incorporated by reference to Exhibit 10.10 to the Current Report on Form 8-K filed February 19, 2020 (File No. 001-04119)) (#)
10(xxiii)	Executive Employment Agreement of Allen C. Behr (incorporated by reference to Exhibit 10.1 to the Quarterly Report on Form 10-Q for the quarter ended July 4, 2020 (File No. 001-04119)) (#)
10(xxiv)	Executive Employment Agreement of David A. Sumoski (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K/A filed January 5, 2021 (File No. 001-04119)) (#)
10(xxv)	Executive Employment Agreement of Douglas J. Jellison (incorporated by reference to Exhibit 10(xxx) to the Annual Report on Form 10-K for the year ended December 31, 2020 (File No. 001-04119)) (#)
10(xxvi)	Executive Employment Agreement of Gregory J. Murphy (incorporated by reference to Exhibit 10(xxxi) to the Annual Report on Form 10-K for the year ended December 31, 2020 (File No. 001-04119)) (#)
10(xxvii)	Executive Employment Agreement of Daniel R. Needham (incorporated by reference to Exhibit 10(xxxii) to the Annual Report on Form 10-K for the year ended December 31, 2020 (File No. 001-04119)) (#)
10(xxviii)	Executive Employment Agreement of K. Rex Query (incorporated by reference to Exhibit 10(xxxiii) to the Annual Report on Form 10-K for the year ended December 31, 2020 (File No. 001-04119)) (#)
10(xxix)	Executive Employment Agreement of Stephen D. Laxton (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K/A filed March 4, 2022 (File No. 001-04119)) (incorporated by reference to Exhibit 10.5 to the Quarterly Report on Form 10-Q for the quarter ended April 2, 2022 (File No. 001-04119)) (#)
10(xxx)	Executive Employment Agreement of John Hollatz (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended July 2, 2022 (File No. 001-04119)) (#)
10(xxxi)	Executive Employment Agreement of Noah Hanners (incorporated by reference to Exhibit 10(xxxiii) to the Annual Report on Form 10-K for the year ended December 31, 2022 (File No. 001-04119)) (#)
10(xxxii)	Executive Employment Agreement of Brad Ford (incorporated by reference to Exhibit 10 to the Quarterly Report on Form 10-Q for the quarter ended July 3, 2023 (File No. 001-04119)) (#)
10(xxxiii)	Nucor Corporation Supplemental Retirement Plan for Executive Officers, as amended and restated effective December 15, 2023 (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed December 15, 2023 (File No. 001-04119)) (#)
21*	Subsidiaries
23*	Consent of Independent Registered Public Accounting Firm
24*	Power of Attorney (included on signature page)
31*	Certification of Principal Executive Officer Pursuant to Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31(i)*	Certification of Principal Financial Officer Pursuant to Rule 13a-14(a)/15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32**	Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32(i)**	Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
97*	Nucor Corporation Executive Officer Incentive Compensation Recovery Policy

95

101*

Financial Statements from the Annual Report on Form 10-K of Nucor Corporation for the year ended December 31, 2023, filed February 27, 2024, formatted in Inline XBRL: (i) the Consolidated Balance Sheets, (ii) the Consolidated Statements of Earnings, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders’ Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Consolidated Financial Statements.

104*

Cover Page from the Annual Report on Form 10-K of Nucor Corporation for the year ended December 31, 2023, filed February 27, 2024, formatted in Inline XBRL (included in Exhibit 101).

* Filed herewith.

** Furnished (and not filed) herewith pursuant to Item 601(b)(32)(ii) of Regulation S-K.

(#) Indicates a management contract or compensatory plan or arrangement.

Item 16. Form 10-K Summary.

Registrants may voluntarily include a summary of information required by Form 10-K under this Item16. We have elected not to include such summary information.

96

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

NUCOR CORPORATION
By:	/s/ Leon J. Topalian
	Leon J. Topalian
	Chair, President and Chief Executive Officer
Dated: February 27, 2024

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Stephen D. Laxton and A. Rae Eagle, or either of them, his or her attorney-in-fact, with full power of substitution and resubstitution for such person in any and all capacities, to sign any amendments to this report and to file the same, with exhibits thereto, and other documents in connection therewith, with the United States Securities and Exchange Commission, hereby ratifying and confirming all that either of said attorney-in-fact, or substitute or substitutes, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the date indicated.

/s/ Leon J. Topalian	/s/ Norma B. Clayton
Leon J. Topalian Chair, President, and Chief Executive Officer (Principal Executive Officer)	Norma B. Clayton Director
/s/ Stephen D. Laxton	/s/ Patrick J. Dempsey
Stephen D. Laxton Chief Financial Officer, Treasurer and Executive Vice President (Principal Financial Officer)	Patrick J. Dempsey Director
/s/ Michael D. Keller	/s/ Nicholas C. Gangestad
Michael D. Keller Vice President and Corporate Controller (Principal Accounting Officer)	Nicholas C. Gangestad Director
	/s/ Christopher J. Kearney
	Christopher J. Kearney Lead Director
	/s/ Laurette T. Koellner
	Laurette T. Koellner Director
	/s/ Michael W. Lamach
	Michael W. Lamach Director
	/s/ Joseph D. Rupp
	Joseph D. Rupp Director
	/s/ Nadja Y. West
Dated: February 27, 2024	Nadja Y. West Director

97

EX-10.(V)

Exhibit 10(v)

AMENDMENT NO. 1

NUCOR CORPORATION

2014 OMNIBUS INCENTIVE COMPENSATION PLAN

as amended and restated effective February 21, 2022

THIS AMENDMENT NO. 1 (this “Amendment”) to the 2014 Omnibus Incentive Compensation Plan, as amended and restated effective February 21, 2022 (the “Plan”) is adopted as of the 14th day of September, 2023, by NUCOR CORPORATION, a Delawarecorporation (the “Company”).

Statement of Purpose

The Company maintains the Plan and two supplements to the Plan: the Nucor Corporation Senior Officers Annual Incentive Plan (the “AIP”) and the Nucor Corporation Senior Officers Long-Term Incentive Plan (the “LTIP”, and collectively with the Plan and the AIP, the “Incentive Plans”), to provide incentive compensation to senior officers of the Company. The Company desires to amend the Incentive Plans to provide that, pursuant to recent updates in law, the Company is required to recoup certain incentive compensation received by executive officers in the event of a restatement of the Company’s financial results due to material noncompliance with financial reporting requirements.

NOW, THEREFORE, the Company does hereby declare that the Incentive Plans are hereby amended effective as of the date hereof as follows:

. Section 14.16 of the Plan is deleted in its entirety and replaced with the following:

“14.16 Recoupment of Awards. All incentive-based compensation received by any current or former Participant in the Plan, including any incentive-based compensation that is earned, awarded, or becomes vested in whole or in part based on an Award, shall be subject to recovery pursuant to the Nucor Corporation Executive Officer Incentive Compensation Recovery Policy, as amended, superseded or replaced from time to time (the “Policy”), the terms and provisions of which are incorporated by reference into this Plan and any Award Agreement hereunder, and each Award shall be deemed to include, as a condition to the Award, an agreement by the Participant to abide by the terms of the Policy. Any Award hereunder shall also be subject to rights of recovery that may be available to the Company under applicable law, rule or regulation or pursuant to the terms

of any other policy of the Company or any provision in any employment agreement.”

2. Except as expressly or by necessary implication amended hereby, the Plan shall continue in full force and effect.

IN WITNESS WHEREOF, the Company has caused this Amendment No. 1 to be executed by its duly authorized officer as of the day and year first above written.

NUCOR CORPORATION

By: /s/ Stephen Laxton

Name: Stephen Laxton

Title: CFO

EX-21

Exhibit 21

Nucor Corporation

2023 Form 10-K

Subsidiaries

Subsidiary State or Other Jurisdiction of Incorporation or Organization

Nucor Steel Auburn, Inc.	Delaware
Nucor Steel Birmingham, Inc.	Delaware
Nucor Steel Decatur, LLC	Delaware
Nucor Steel Gallatin LLC	Kentucky
Nucor Steel Jackson, Inc.	Delaware
Nucor Steel Kankakee, Inc.	Delaware
Nucor Steel Kingman, LLC	Delaware
Nucor Steel Marion, Inc.	Delaware
Nucor Steel Memphis, Inc.	Delaware
Nucor Steel Seattle, Inc.	Delaware
Nucor Steel Tuscaloosa, Inc.	Delaware
Nucor Steel Connecticut, Inc.	Delaware
Nucor-Yamato Steel Company	Delaware
Nu-Iron Unlimited	Trinidad
Nucor Castrip Arkansas LLC	Delaware
Harris Steel Inc.	Delaware
Harris U.S. Holdings Inc.	Delaware
Harris Steel ULC	Canada
Magnatrax Corporation	Delaware
The David J. Joseph Company	Delaware
Nucor Harris Rebar Services Central Corp.	Indiana
Nucor Energy Holdings Inc.	Delaware
Skyline Steel, LLC	Delaware
Nucor Steel Louisiana LLC	Delaware
Nucor Tubular Products, Inc.	Illinois
Republic Conduit, Inc.	Delaware
St. Louis Cold Drawn LLC	Delaware
Nucor Steel Sedalia LLC	Delaware
Nucor Steel Florida Inc.	Delaware
American Building Company Illinois LLC	Delaware
Nucor Buildings Group West LLC	Delaware
Nucor Cold Finish Wisconsin, Inc.	Delaware
Nucor Steel Longview LLC	Delaware
Nucor Tubular Products Madison LLC	Delaware
Nucor-LMP Inc	Delaware
Republic Conduit Manufacturing LLC	Delaware
Universal Industrial Gases, LLC	Delaware
Vulcraft of New York, Inc.	Delaware
Nucor Coatings Corporation	Delaware
Nucor Insulated Panel Group, LLC	Delaware
Nucor Warehouse Systems Inc.	California
California Steel Industries, Inc.	Delaware
C.H.I. Overhead Doors, LLC	Delaware
Nucor Steel West Virginia LLC	Delaware
Nucor Towers & Structures Inc.	Delaware
Nucor-JFE Steel Mexico S. de R.L. de C.V.	Mexico

EX-23

Exhibit 23

Nucor Corporation

2023 Form 10-K

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-274169) and on Form S-8 (Nos. 333-246172, 333-196104, 333-167070, and 333-108751) of Nucor Corporation of our report dated February 27, 2024 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLC
Charlotte, North Carolina
February 27, 2024

EX-31

Exhibit 31

CERTIFICATION

I, Leon J. Topalian, certify that:

1. I have reviewed this Annual Report on Form 10-K of Nucor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 27, 2024	/s/ Leon J. Topalian
	Leon J. Topalian
	Chair, President and Chief Executive Officer

EX-31.(I)

Exhibit 31(i)

CERTIFICATION

I, Stephen D. Laxton, certify that:

1. I have reviewed this Annual Report on Form 10-K of Nucor Corporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 27, 2024	/s/ Stephen D. Laxton
	Stephen D. Laxton
	Chief Financial Officer, Treasurer and Executive Vice President

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Nucor Corporation (the “Registrant”) for the year ended December 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Leon J. Topalian, Chair, President and Chief Executive Officer (principal executive officer) of the Registrant, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ Leon J. Topalian
Name:	Leon J. Topalian
Date:	February 27, 2024

EX-32.(I)

Exhibit 32(i)

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Nucor Corporation (the “Registrant”) for the year ended December 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Stephen D. Laxton, Chief Financial Officer, Treasurer and Executive Vice President (principal financial officer) of the Registrant, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ Stephen D. Laxton
Name:	Stephen D. Laxton
Date:	February 27, 2024

EX-97

Exhibit 97

Nucor corporation

EXECUTIVE OFFICER INCENTIVE COMPENSATION RECOVERY POLICY

Nucor Corporation (the “Company”) has adopted this policy as an amendment and restatement of the Company’s Executive Officer Incentive Compensation Recovery Policy (the “Policy”). This Policy will be interpreted to comply with the requirements of 17 C.F.R. §240.10D-1 and the related listing requirements of the New York Stock Exchange or such other national securities exchange or national securities association (the “Exchange”) on which the Company has listed securities, (the regulations and listing requirements as a collective set of guidance, the “SEC Recovery Rule”). To the extent this Policy is in any way considered inconsistent with those requirements, this Policy will be treated as if it were retroactively amended to comply with the SEC Recovery Rule.

1. Definitions. All capitalized terms used in the Policy shall have the meaning below unless otherwise defined. The terms “Accounting Restatement,” “Executive Officer,” “Financial Reporting Measure,” “Incentive-Based Compensation,” and “Received” defined in this Policy will have the meaning necessary to comply with the SEC Recovery Rule and any related guidance.

“Accounting Restatement” means an accounting restatement due to the material noncompliance of the Company with any financial reporting requirement under the securities laws, including any required accounting restatement to correct an error in previously issued financial statements that is material to the previously issued financial statements, or that would result in a material misstatement if the error were corrected in the current period or left uncorrected in the current period.

“Committee” means the Compensation and Executive Development Committee of the Company’s Board of Directors.

“Effective Date” means October 2, 2023.

“Executive Officer” means each of the Company’s current and former Executive Vice Presidents, principal accounting officer, and any other executive who is designated by the Company’s Board of Directors as an “officer” for purposes of compliance with Section 16 of the Securities Exchange Act of 1934, as amended.

“Financial Reporting Measure” means any measure that is determined and presented in accordance with the accounting principles used in preparing the Company’s financial statements, and any measure that is derived wholly or in part from such measure; but a Financial Reporting Measure is not required to be presented within the Company’s financial statements or included in a filing with the Securities Exchange Commission (“SEC”). Examples of Financial Reporting Measures include, but are not limited to: Company stock price, total shareholder return (“TSR”), and return measures (e.g., return on equity; return on average invested capital; and return on assets).

“Incentive-Based Compensation” means any compensation that is granted, earned, or vested based wholly or in part upon the attainment of a Financial Reporting Measure.

Incentive-Based Compensation is deemed to have been “Received” in the Company’s fiscal period during which the Financial Reporting Measure specified in the Incentive-Based Compensation award is attained, even if the payment or grant of such Incentive-Based Compensation occurs after the end of that fiscal period.

“Recovery Period” means the three completed fiscal years that ended immediately before the date the Company is required to prepare an Accounting Restatement. The Company is required to prepare an Accounting Restatement on either the date the Audit Committee of the Company’s Board of Directors concludes, or reasonably should have concluded, that the Company is required to prepare an Accounting Restatement or the date a court, regulator or other legally authorized body directs the Company to prepare an Accounting Restatement, whichever is earliest, and in either case without regard to if or when the restated financial statements are filed.

2. Application of this Policy. This Policy will apply to all current or former Executive Officers with respect to Incentive-Based Compensation Received on or after the Effective Date, and for executives appointed after the Effective Date, with respect to Incentive-Based Compensation Received on or after the executive becomes an Executive Officer. This Policy will apply, while the Company remains listed on an Exchange, to all Incentive-Based Compensation Received during the Recovery Period by anyone who served as an Executive Officer at any time during the performance period, or periods, for that Incentive-Based Compensation. In a situation where there is a change to the Company’s fiscal year, this Policy will also apply to Incentive-Based Compensation Received during a transition period arising due to that change, as needed to comply with the SEC Recovery Rule.

3. Erroneously Awarded Compensation. This Policy requires recovery of all Incentive-Based Compensation Received that exceeds the amount of Incentive Based-Compensation that otherwise would have been Received had the amount been determined or calculated based on the Accounting Restatement (the amount computed, “Erroneously Awarded Compensation”). This Policy requires recovery of any amount contributed based on Erroneously Awarded Compensation to any notional account of an Executive Officer under a benefit plan or program and any earnings accrued on that notional amount. In each case, the amount of Erroneously Awarded Compensation will be computed without regard to any taxes paid by the Executive Officer. For Incentive-Based Compensation based on stock price or TSR, where the amount of Erroneously Awarded Compensation is not subject to mathematical recalculation directly from the information in an Accounting Restatement: (1) the amount will be based on a reasonable estimate of the effect of the Accounting Restatement on the stock price or TSR upon which the Incentive-Based Compensation was Received; and (2) the Company will maintain documentation of the determination of that reasonable estimate and provide it to the Exchange.

4. Effectuation of Recovery. The Committee will require prompt recovery of any Erroneously Awarded Compensation, except to the extent that the conditions of paragraphs (a),

2

(b), or (c) below apply. The Committee will determine the recoupment method and schedule for each amount of Erroneously Awarded Compensation in a manner that complies with the “reasonably prompt” requirement consistent with the SEC Recovery Rule. The determination may vary from case to case, and the Committee may adopt additional rules to further describe what repayment schedules satisfy this requirement.

(a) The Committee may determine not to recover Erroneously Awarded Compensation if the direct expense paid to a third party to assist in enforcing this Policy would exceed the amount to be recovered and the Committee determines that recovery would be impracticable. Before concluding that it would be impracticable to recover any amount of Erroneously Awarded Compensation based on expense of enforcement, the Committee will make a reasonable attempt to recover such Erroneously Awarded Compensation, document such reasonable attempt(s) to recover said Erroneously Awarded Compensation, and provide that documentation to the Exchange.

(b) The Committee may determine not to recover Erroneously Awarded Compensation if recovery would violate home country law adopted prior to November 28, 2022 and the Committee determines that recovery would be impracticable. Before concluding that it would be impracticable to recover any amount of Erroneously Awarded Compensation based on violation of home country law, the Committee will obtain an opinion of home country counsel, acceptable to the Exchange, that recovery would result in such a violation and will provide such opinion to the Exchange.

(c) The Committee may determine not to recover Erroneously Awarded Compensation if recovery would likely cause an otherwise tax-qualified retirement plan, under which benefits are broadly available to employees of the Company, to fail to meet the requirements of the Internal Revenue Code and regulations thereunder for those plans and the Committee determines that recovery of said Erroneously Awarded Compensation would be impracticable.

5. Method of Recovery. The Committee will determine the method of recovery and may seek recovery of the Erroneously Awarded Compensation from an Executive Officer from any amount of compensation approved, awarded, granted, payable or paid prior to, on or after the Effective Date. The Committee may seek to require any or all of the following recovery actions: (A) recoupment or reimbursement of any cash or equity-based award, (B) cancellation of previously approved cash or equity-based awards, whether vested or unvested or paid or unpaid, (C) cancellation or offset against any planned future cash or equity-based awards, (D) forfeiture of deferred compensation, (E) direct payment, and (F) any other method authorized by applicable law or contract (including under any compensation plan or program and including from base salary, bonuses, commissions and deferred compensation).

6. Committee Decisions. Decisions of the Committee with respect to this Policy shall be final, conclusive and binding on all Executive Officers subject to this Policy, unless determined to be an abuse of discretion.

3

7. No Indemnification. Notwithstanding anything to the contrary in any other policy of the Company or any agreement between the Company and an Executive Officer, no Executive Officer shall be indemnified by the Company against the loss of any Erroneously Awarded Compensation, including any payment or reimbursement for the cost of third-party insurance purchased by any Executive Officer to fund potential recovery obligations under this Policy.

8. Agreement to Policy by Executive Officers. The Committee will take reasonable steps to inform Executive Officers of this Policy and obtain their agreement to this Policy, which steps may constitute the inclusion of this Policy as an attachment or incorporation of this Policy by reference to any award that is accepted by the Executive Officer.

9. No Impairment of Other Remedies. This Policy does not preclude the Company from taking any other action to enforce an Executive Officer’s obligations to the Company, including termination of employment or institution of civil or criminal proceedings. This Policy is in addition to the requirements of Section 304 of the Sarbanes-Oxley Act of 2002 that are applicable to the Company’s Chief Executive Officer and Chief Financial Officer.

10. Additional Actions by the Company. The Company will disclose the Committee’s determination as to any potential Accounting Restatement, the circumstances of such event, and the related recovery action taken by the Committee in the Company’s proxy statement or such other filing with the SEC that the Committee determines is appropriate or required by applicable law. The Committee will require that any future benefit plan adopted by the Company and any future award agreements for Incentive-Based Compensation contain a provision similar to this Policy or incorporate by reference this Policy, with such changes as the Committee determines in its reasonable discretion are appropriate or required by applicable law.

4

XML

Document and Entity Information - USD ($)
$ in Millions

12 Months Ended

Dec. 31, 2023

Feb. 21, 2024

Jul. 01, 2023

Cover [Abstract]

Document Type

10-K

Amendment Flag

false

Document Period End Date

Dec. 31, 2023

Document Fiscal Year Focus

2023

Document Fiscal Period Focus

FY

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

ICFR Auditor Attestation Flag

true

Document Financial Statement Error Correction [Flag]

false

Entity Current Reporting Status

Yes

Entity Shell Company

false

Entity Interactive Data Current

Yes

Entity Voluntary Filers

No

Entity Well-known Seasoned Issuer

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 Annual 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

240,745,037

Entity Public Float

$ 40,560

Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant's annual report to stockholders for the year ended December 31, 2023, which will be posted to the registrant's website and furnished to the SEC subsequent to the date hereof are incorporated by reference into Part II of this report to the extent described herein. Portions of the registrant’s definitive proxy statement to be filed with the SEC in connection with the registrant’s 2024 Annual Meeting of Stockholders are incorporated by reference into Part III of this report to the extent described herein.

Auditor Name

PricewaterhouseCoopers LLP

Auditor Location

Charlotte, North Carolina

Auditor Firm ID

238

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 6,383,298	$ 4,280,852
Short-term investments	747,479	576,946
Accounts receivable, net	2,953,311	3,591,030
Inventories, net	5,577,758	5,453,531
Other current assets	724,012	789,325
Total current assets	16,385,858	14,691,684
Property, plant and equipment, net	11,049,767	9,616,920
Restricted cash and cash equivalents	3,494	80,368
Goodwill	3,968,847	3,920,060
Other intangible assets, net	3,108,015	3,322,265
Other assets	824,518	847,913
Total assets	35,340,499	32,479,210
Current liabilities:
Short-term debt	119,211	49,081
Current portion of long-term debt and finance lease obligations	74,102	28,582
Accounts payable	2,020,289	1,649,523
Salaries, wages and related accruals	1,326,390	1,654,210
Accrued expenses and other current liabilities	1,054,517	948,348
Total current liabilities	4,594,509	4,329,744
Long-term debt and finance lease obligations due after one year	6,648,873	6,613,687
Deferred credits and other liabilities	1,973,363	1,965,873
Total liabilities	13,216,745	12,909,304
Commitments and contingencies
Nucor stockholders' equity:
Common stock (800,000 shares authorized; 380,154 and 380,154 shares issued, respectively)	152,061	152,061
Additional paid-in capital	2,176,243	2,143,520
Retained earnings	28,762,045	24,754,873
Accumulated other comprehensive loss, net of income taxes	(162,072)	(137,517)
Treasury stock (135,252 and 126,661 shares, respectively)	(9,987,643)	(8,498,243)
Total Nucor stockholders’ equity	20,940,634	18,414,694
Noncontrolling interests	1,183,120	1,155,212
Total equity	22,123,754	19,569,906
Total liabilities and equity	$ 35,340,499	$ 32,479,210

XML

Consolidated Balance Sheets (Parenthetical) - shares	Dec. 31, 2023	Dec. 31, 2022
Statement Of Financial Position [Abstract]
Common stock shares authorized	800,000,000	800,000,000
Common stock shares issued	380,154,000	380,154,000
Treasury stock	135,252,000	126,661,000

XML

Consolidated Statements of Earnings - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Net sales	$ 34,713,501	$ 41,512,467	$ 36,483,939
Costs, expenses and other:
Cost of products sold	26,899,107	29,009,187	25,458,525
Marketing, administrative and other expenses	1,584,052	1,997,178	1,706,609
Equity in earnings of unconsolidated affiliates	(12,783)	(10,714)	(103,068)
Losses and impairments of assets		101,756	62,161
Interest (income) expense, net	(29,632)	170,216	158,854
Costs, expenses and other, total	28,440,744	31,267,623	27,283,081
Earnings before income taxes and noncontrolling interests	6,272,757	10,244,844	9,200,858
Provision for income taxes	1,359,966	2,165,204	2,078,488
Net earnings before noncontrolling interests	4,912,791	8,079,640	7,122,370
Earnings attributable to noncontrolling interests	387,990	472,303	294,909
Net earnings attributable to Nucor stockholders	$ 4,524,801	$ 7,607,337	$ 6,827,461
Net earnings per share:
Basic	$ 18.05	$ 28.88	$ 23.23
Diluted	$ 18	$ 28.79	$ 23.16

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Statement Of Comprehensive Income [Abstract]
Net earnings before noncontrolling interests	$ 4,912,791		$ 8,079,640		$ 7,122,370
Other comprehensive income (loss):
Net unrealized (loss) gain on hedging derivatives, net of income taxes of ($16,500), $24,300, and $5,000 for 2023, 2022 and 2021, respectively	(52,077)		76,542		15,112
Reclassification adjustment for gain (loss) on settlement of hedging derivatives included in net earnings, net of income taxes of $3,800, ($16,400), and ($3,100) for 2023, 2022 and 2021, respectively	12,077	[1]	(51,554)	[2]	(9,300)
Foreign currency translation (loss) gain, net of income taxes of $0 for 2023, 2022 and 2021	21,041		(55,348)		(4,041)
Adjustment to early retiree medical plan, net of income taxes of ($1,538), $1,997, and $659 for 2023, 2022 and 2021, respectively	(4,787)		6,328		1,875
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of ($255), $671 and ($10) for 2023, 2022 and 2021, respectively	(809)	[1]	1,797	[2]	(67)
Net current-period other comprehensive income (loss)	(24,555)		(22,235)		3,579
Comprehensive income	4,888,236		8,057,405		7,125,949
Comprehensive income attributable to noncontrolling interests	387,990		472,303		294,909
Comprehensive income attributable to Nucor stockholders	$ 4,500,246		$ 7,585,102		$ 6,831,040

[1] Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

[2] Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement Of Comprehensive Income [Abstract]
Net unrealized (loss) gain on hedging derivatives, tax	$ (16,500)	$ 24,300	$ 5,000
Reclassification adjustment for gain (loss) on settlement of hedging derivatives included in net earnings, tax effect	3,800	(16,400)	(3,100)
Foreign currency translation (loss) gain, tax	0	0	0
Adjustment to early retiree medical plan, tax effect	(1,538)	1,997	659
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, tax effect	$ (255)	$ 671	$ (10)

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Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive (Loss) [Member]	Treasury Stock (at cost) [Member]	Total Nucor Stockholders' Equity [Member]	Noncontrolling Interests [Member]
BALANCES, beginning of period at Dec. 31, 2020	$ 11,231,861	$ 152,061	$ 2,121,288	$ 11,343,852	$ (118,861)	$ (2,709,675)	$ 10,788,665	$ 443,196
BALANCES, shares at beginning of period at Dec. 31, 2020		380,154				77,909
Net earnings before noncontrolling interests	7,122,370			6,827,461			6,827,461	294,909
Other comprehensive income (loss)	3,579				3,579		3,579
Stock options exercised	$ 145,255		38,434			$ 106,821	145,255
Stock options exercised (in shares)	(2,868)					(2,868)
Stock option expense	$ 3,825		3,825				3,825
Issuance of stock under award plans, net of forfeitures	19,305		(24,539)			$ 43,844	19,305
Issuance of stock under award plans, net of forfeitures, shares						(1,101)
Amortization of unearned compensation	1,600		1,600				1,600
Treasury stock acquired and net impact of excise tax	(3,276,088)					$ (3,276,088)	(3,276,088)
Treasury stock acquired and net impact of excise tax ,shares						33,802
Cash dividends declared	(497,213)			(497,213)			(497,213)
Distributions to noncontrolling interests	(150,700)							(150,700)
BALANCES, end of period at Dec. 31, 2021	14,603,794	$ 152,061	2,140,608	17,674,100	(115,282)	$ (5,835,098)	14,016,389	587,405
BALANCES, shares at end of period at Dec. 31, 2021		380,154				107,742
Net earnings before noncontrolling interests	8,079,640			7,607,337			7,607,337	472,303
Other comprehensive income (loss)	(22,235)				(22,235)		(22,235)
Stock options exercised	$ 22,852		(2,994)			$ 25,846	22,852
Stock options exercised (in shares)	(447)					(447)
Stock option expense	$ 5,372		5,372				5,372
Issuance of stock under award plans, net of forfeitures	69,211		(4,366)			$ 73,577	69,211
Issuance of stock under award plans, net of forfeitures, shares						(1,206)
Amortization of unearned compensation	4,900		4,900				4,900
Treasury stock acquired and net impact of excise tax	(2,762,568)					$ 2,762,568	2,762,568
Treasury stock acquired and net impact of excise tax ,shares						20,572
Cash dividends declared	(526,564)			(526,564)			(526,564)
Distributions to noncontrolling interests	(332,293)							(332,293)
Acquisition	427,797							427,797
BALANCES, end of period at Dec. 31, 2022	19,569,906	$ 152,061	2,143,520	24,754,873	(137,517)	$ (8,498,243)	18,414,694	1,155,212
BALANCES, shares at end of period at Dec. 31, 2022		380,154				126,661
Net earnings before noncontrolling interests	4,912,791			4,524,801			4,524,801	387,990
Other comprehensive income (loss)	(24,555)				(24,555)		(24,555)
Stock options exercised	$ 11,731		(2,864)			$ 14,595	11,731
Stock options exercised (in shares)	(210)					(210)
Stock option expense	$ 4,706		4,706				4,706
Issuance of stock under award plans, net of forfeitures	88,265		24,577			$ 63,688	88,265
Issuance of stock under award plans, net of forfeitures, shares						(951)
Amortization of unearned compensation	6,304		6,304				6,304
Treasury stock acquired and net impact of excise tax	(1,567,683)					$ (1,567,683)	(1,567,683)
Treasury stock acquired and net impact of excise tax ,shares						9,752
Cash dividends declared	(517,629)			(517,629)			(517,629)
Distributions to noncontrolling interests	(435,047)							(435,047)
Acquisition	74,965							74,965
BALANCES, end of period at Dec. 31, 2023	$ 22,123,754	$ 152,061	$ 2,176,243	$ 28,762,045	$ (162,072)	$ (9,987,643)	$ 20,940,634	$ 1,183,120
BALANCES, shares at end of period at Dec. 31, 2023		380,154				135,252

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement Of Stockholders Equity [Abstract]
Cash dividends declared per share	$ 2.07	$ 2.01	$ 1.715

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Consolidated Statements of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Operating activities:
Net earnings before noncontrolling interests	$ 4,912,791	$ 8,079,640	$ 7,122,370
Adjustments:
Depreciation	930,585	826,692	735,406
Amortization	237,730	234,942	129,157
Stock-based compensation	130,162	136,834	135,775
Deferred income taxes	21,419	(46,849)	11,665
Distributions from affiliates	33,621	57,071	200
Equity in earnings of unconsolidated affiliates	(12,783)	(10,714)	(103,068)
Losses and impairments of assets		101,756	62,161
Changes in assets and liabilities (exclusive of acquisitions and dispositions):
Accounts receivable	663,825	501,225	(1,392,084)
Inventories	(75,042)	962,424	(2,307,336)
Accounts payable	361,146	(496,234)	383,428
Federal income taxes	188,344	(337,359)	313,679
Salaries, wages and related accruals	(290,859)	155,005	997,034
Other operating activities	10,992	(92,379)	142,389
Cash provided by operating activities	7,111,931	10,072,054	6,230,776
Investing activities:
Capital expenditures	(2,214,157)	(1,947,897)	(1,621,989)
Investment in and advances to affiliates	(35,137)	(258)	(237)
Sale of business		99,681
Disposition of plant and equipment	14,907	32,277	19,401
Acquisitions (net of cash acquired)	(70,824)	(3,553,191)	(1,426,424)
Purchases of investments	(1,471,528)	(913,898)	(493,889)
Proceeds from the sale of investments	1,317,308	590,173	648,887
Other investing activities	(37,000)	(9,596)	399
Cash used in investing activities	(2,496,431)	(5,702,709)	(2,873,852)
Financing activities:
Net change in short-term debt	(24,870)	(58,642)	49,817
Proceeds from issuance of long-term debt, net of discount		2,091,934	196,990
Repayment of long-term debt	(10,000)	(1,111,000)
Bond issuance costs		(13,138)
Proceeds from exercise of stock options	11,731	22,852	145,255
Payment of tax withholdings on certain stock-based compensation	(49,318)	(64,079)	(73,260)
Distributions to noncontrolling interests	(435,047)	(332,293)	(150,700)
Cash dividends	(514,534)	(533,589)	(483,469)
Acquisition of treasury stock	(1,553,933)	(2,762,568)	(3,276,088)
Proceeds from government incentives		275,000
Other financing activities	(16,840)	(25,340)	(11,424)
Cash used in financing activities	(2,592,811)	(2,510,863)	(3,602,879)
Effect of exchange rate changes on cash	2,883	(5,920)	(316)
Increase (decrease) in cash and cash equivalents and restricted cash and cash equivalents	2,025,572	1,852,562	(246,271)
Cash and cash equivalents and restricted cash and cash equivalents - beginning of year	4,361,220	2,508,658	2,754,929
Cash and cash equivalents and restricted cash and cash equivalents - end of year	6,386,792	4,361,220	2,508,658
Non-cash investing activity:
Change in accrued plant and equipment purchases	$ 1,053	$ 4,568	$ 78,375

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net Income (Loss)	$ 785,399	$ 1,141,506	$ 1,461,354	$ 1,136,542	$ 1,255,733	$ 1,694,748	$ 2,561,233	$ 2,095,623	$ 4,524,801	$ 7,607,337	$ 6,827,461

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Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2023
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
Rule 10b51 Arr Modified Flag	false
NonRule 10b51 Arr Modified Flag	false

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Nature of Operations and Basis of Presentation

12 Months Ended

Dec. 31, 2023

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Nature of Operations and Basis of Presentation

1. Nature of Operations and Basis of Presentation

Nature of Operations

Nucor is principally a manufacturer of steel and steel products, as well as a scrap broker and processor, with operating facilities and customers primarily located in North America.

Principles of Consolidation

The consolidated financial statements include Nucor and its controlled subsidiaries, including Nucor-Yamato Steel Company (Limited Partnership) (“Nucor-Yamato”), of which Nucor owns 51%; California Steel Industries, Inc. (“CSI”), of which Nucor owns 51%; and Nucor-JFE Steel Mexico, S. de R.L. de C.V. ("NJSM"), of which Nucor owns 51%. All intercompany transactions are eliminated.

Distributions are made to noncontrolling interest partners in Nucor-Yamato in accordance with the limited partnership agreement by mutual agreement of the general partners. At a minimum, sufficient cash is distributed so that each partner may pay its U.S. federal and state income taxes.

Distributions are made to noncontrolling interest partners in CSI in accordance with the shareholder agreement.

Distributions are made to the noncontrolling interest partner in NJSM in accordance with the joint venture agreement.

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates.

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Cash and Cash Equivalents

Cash equivalents are recorded at cost plus accrued interest, which approximates fair value, and have original maturities of three months or less at the date of purchase. Cash and cash equivalents are maintained primarily with a few high-credit quality financial institutions.

Short-term Investments

Short-term investments are recorded at cost plus accrued interest, which approximates fair value. Unrealized gains and losses on investments classified as available-for-sale are recorded as a component of accumulated other comprehensive income (loss). Management determines the appropriate classification of its investments at the time of purchase and re-evaluates such determination at each balance sheet date.

Inventories

Inventories are stated at the lower of cost or net realizable value. The Company records any amount required to reduce the carrying value of inventory to net realizable value as a charge to cost of products sold. Scrap and scrap substitute costs are a very significant component of the raw material, semi-finished and finished product inventory balances. The vast majority of the Company’s inventory is recorded on the first-in, first-out method. Production costs are applied to semi-finished and finished product inventory from the approximate period in which they are produced.

Property, Plant and Equipment

Property, plant and equipment is stated at cost, except for property, plant and equipment acquired through acquisitions which is recorded at acquisition date fair value. With the exception of our natural gas wells, depreciation primarily is provided on a straight-line basis over the estimated useful lives of the assets. Depletion of all capitalized costs associated with our natural gas producing properties is expensed on a unit-of-production basis by individual field as the gas from the proved developed reserves is produced. The costs of acquiring unproved natural gas leasehold acreage are capitalized. When proved reserves are found on unproved properties, the associated leasehold cost is transferred to proved properties. Unproved leases are reviewed periodically for any impairment triggering event, and a valuation allowance is provided for any estimated decline in value. The costs of planned major maintenance activities are capitalized as part of other current assets and amortized over the period until the next scheduled major maintenance activity. All other repairs and maintenance activities are expensed when incurred.

Goodwill and Other Intangibles

Goodwill is the excess of cost over the fair value of net assets of businesses acquired. Goodwill is not amortized but is tested annually for impairment and whenever events or circumstances change that would make it more likely than not that an impairment may have occurred. We perform our annual impairment analysis as of the first day of the fourth quarter each year. The evaluation of impairment involves comparing the current estimated fair value of each reporting unit, which is a level below the reportable segment, to the recorded value, including goodwill. When appropriate, Nucor performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. For certain reporting units, it is necessary to perform a quantitative analysis. In these instances, a discounted cash flow model is used to determine the current estimated fair value of these reporting units. A number of significant assumptions and estimates are involved in the application of the discounted cash flow model to forecast operating cash flows, which could include market growth and market share, sales volumes and prices, raw materials and other costs to produce, discount rate and estimated capital needs. Management considers historical experience and all available information at the time the fair values of its reporting units are estimated. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. Changes in assumptions and estimates may affect the fair value of goodwill and could result in impairment charges in future periods.

Finite-lived intangible assets are amortized over their estimated useful lives on a straight-line or accelerated basis.

Long-Lived Asset Impairments

We evaluate our property, plant and equipment and finite-lived intangible assets for potential impairment on an individual asset basis or at the lowest level asset grouping for which independent cash flows can be separately identified. Asset impairments are assessed whenever circumstances indicate that the carrying amounts of those productive assets could exceed their projected undiscounted cash flows. When it is determined that impairment exists, the related assets are written down to their estimated fair market value.

Equity Method Investments

Investments in joint ventures in which Nucor shares control over the financial and operating decisions but in which Nucor is not the primary beneficiary are accounted for under the equity method.

Each of the Company’s equity method investments is subject to a review for impairment if, and when, circumstances indicate that a decline in fair value below its carrying amount may have occurred. Examples of such circumstances include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee; missed financial projections; a significant adverse change in the regulatory, tax, economic or technological environment of the investee; a significant adverse change in the general market condition of either the geographic area or the industry in which the investee operates; and recurring negative cash flows from operations. If management considers the decline to be other than temporary, the Company would write down the related investment to its estimated fair market value.

Revenue Recognition

Nucor recognizes revenue when obligations under the terms of contracts with our customers are satisfied and collection is reasonably assured; generally, obligations under the terms of contracts are satisfied upon shipment or when control is transferred. Revenue is measured as the amount of consideration expected to be received in exchange for transferring the goods. In addition, revenue is deferred when cash payments are received or due in advance of performance. See Note 23 for further information.

Income Taxes

Nucor utilizes the liability method of accounting for income taxes. Under the liability method, deferred taxes are determined based on the temporary differences between the financial statement and tax basis of assets and liabilities using tax rates expected to be in effect during the years in which the basis differences reverse. A valuation allowance is recorded when it is more likely than not that some of the deferred tax assets will not be realized.

Nucor recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Potential accrued interest and penalties related to unrecognized tax benefits are recognized as a component of interest expense and other expenses.

Stock-Based Compensation

The Company recognizes the cost of stock-based compensation as an expense using fair value measurement methods. The assumptions used to calculate the fair value of stock-based compensation granted are evaluated and revised for new grants, as necessary, to reflect market conditions and experience.

Foreign Currency Translation

For Nucor’s operations where the functional currency is other than the U.S. dollar, assets and liabilities have been translated at year-end exchange rates, and income and expenses have been translated using average exchange rates for the respective periods. Adjustments resulting from the process of translating an entity’s financial statements into the U.S. dollar have been recorded in accumulated other comprehensive income (loss) and are included in net earnings only upon sale or liquidation of the underlying investments. Foreign currency transaction gains and losses are included in net earnings in the period they occur.

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 (“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.

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Short-term Investments

12 Months Ended

Dec. 31, 2023

Text Block [Abstract]

Short-term Investments

3. Short-term Investments

Nucor held $747.5 million of short-term investments as of December 31, 2023 ($576.9 million as of December 31, 2022). The investments held as of December 31, 2023 and December 31, 2022 consisted mainly of several certificates of deposit (“CD’s”), commercial paper and corporate bonds, which were classified as available-for-sale. Interest income on the CD’s and corporate bonds was recorded as earned.

No realized or unrealized gains or losses were incurred in 2023, 2022 or 2021.

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Accounts Receivable

12 Months Ended

Dec. 31, 2023

Receivables [Abstract]

Accounts Receivable

4. Accounts Receivable

An allowance for doubtful accounts is maintained for estimated losses resulting from the inability of our customers to make required payments. Accounts receivable are stated net of the allowance for doubtful accounts of $127.2 million at December 31, 2023 ($200.2 million at December 31, 2022 and $95.4 million at December 31, 2021).

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Inventories

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Inventories

5. Inventories

Inventories consisted of approximately 37% raw materials and supplies and 63% finished and semi-finished products at December 31, 2023 and December 31, 2022. 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.

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Leases

12 Months Ended

Dec. 31, 2023

Disclosure Of Leases [Abstract]

Leases

6. Leases

We lease certain equipment, office space and land. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet.

Most leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or sometimes more. The exercise of lease renewal options is at our sole discretion and we consider these options in determining the lease term used to establish our right-of-use assets and lease liabilities. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements is limited by the expected lease term, unless there is a transfer of title or a purchase option reasonably certain of exercise.

We determine that a contract contains a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. In evaluating whether we have the right to control the use of an identified asset, we assess whether or not we have the right to control the use of the identified asset and to obtain substantially all of the economic benefit from the use of the identified asset.

As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments.

Certain of our lease agreements include payments that adjust periodically for consumption of goods provided by the right-of-use asset in excess of contractually determined minimum amounts and for inflation. These variable lease payments are not significant. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Supplemental statement of earnings information related to our leases is as follows (in thousands):

		Year Ended December 31,
	Statement of Earnings Classification	2023		2022		2021
Operating lease cost	Cost of products sold	$	26,750	$	23,666	$	21,503
Operating lease cost	Marketing, administrative and other expenses		3,199		3,239		2,989
Total operating    lease cost		$	29,949	$	26,905	$	24,492
Finance lease cost:
Amortization of leased    assets	Cost of products sold	$	19,171	$	19,113	$	13,513
Interest on lease    liabilities	Interest expense, net		11,964		12,229		10,670
Total finance lease    cost		$	31,135	$	31,342	$	24,183
Total lease cost		$	61,084	$	58,247	$	48,675

Supplemental cash flow information related to our leases is as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
Cash paid for amounts included in measurement of lease    liabilities:
Operating cash flows from operating leases	$	30,230	$	26,518	$	27,310
Operating cash flows from finance leases	$	11,964	$	12,229	$	10,670
Financing cash flows from finance leases	$	16,840	$	16,008	$	11,425
Non-cash investing and financing activities:
Additions to right-of-use assets obtained from
Operating lease liabilities	$	26,955	$	33,924	$	19,711
Finance lease liabilities	$	16,473	$	27,030	$	99,535

Supplemental balance sheet information related to our leases is as follows (in thousands):

		December 31,
	Balance Sheet Classification	2023		2022
Assets:
Operating lease	Other assets	$	102,878	$	101,499
Finance lease	Property, plant and equipment, net		166,780		169,076
Total leased		$	269,658	$	270,575
Liabilities:
Current operating	Accrued expenses and other current liabilities	$	25,405	$	23,621
Current finance	Current portion of long-term debt and finance lease obligations		14,102		18,582
Non-current operating	Deferred credits and other liabilities		81,673		81,455
Non-current finance	Long-term debt and finance lease obligations due after one year		174,787		169,804
Total leased		$	295,967	$	293,462

Weighted-average remaining lease term and discount rate for our leases are as follows:

	December 31, 2023
Weighted-average remaining lease term - operating leases	7.7 Years
Weighted-average remaining lease term - finance leases	14.3 Years
Weighted-average discount rate - operating leases		4.0	%
Weighted-average discount rate - finance leases		11.7	%

The reason for the substantial weighted-average discount rate – finance leases, of 11.7%, is due to Nucor’s past accounting for the respective finance leases under the former accounting guidance for capital leases. Pursuant to the former lease accounting guidance, the recognition of a capital lease asset and associated capital lease liability could not exceed the fair market value of the leased asset at the lease commencement. Accordingly, the incremental borrowing rate was adjusted upward so that the present value of the minimum lease payments would equal the fair value of the asset.

Maturities of lease liabilities by year for our leases were as follows as of December 31, 2023 (in thousands):

	Operating Leases			Finance Leases
Maturities of lease liabilities, year ending December 31,
2024	$	29,014		$	24,890
2025		22,032			22,391
2026		18,240			20,456
2027		13,569			19,860
2028		11,334			20,059
Thereafter		33,717			160,729
Total lease payments	$	127,906		$	268,385
Less imputed interest		(20,828	)		(79,496	)
Present value of lease liabilities	$	107,078		$	188,889

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Property, Plant and Equipment

12 Months Ended

Dec. 31, 2023

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

7. Property, Plant and Equipment

Property, Plant and Equipment is carried at historical cost, net of accumulated depreciation. Net Property, Plant and Equipment by major asset class consisted of the following at December 31, 2023 (in thousands):

	December 31,
	2023			2022
Land and improvements, net	$	1,183,173		$	905,598
Buildings and improvements		2,550,959			2,230,672
Machinery and equipment		16,328,126			15,125,653
Proved oil and gas properties		558,703			558,486
Leasehold interest in unproved oil and gas properties		96,000			96,000
Construction in process and equipment deposits		2,121,788			1,815,638
		22,838,749			20,732,047
Less accumulated depreciation		(11,788,982	)		(11,115,127	)
	$	11,049,767		$	9,616,920

The estimated useful lives primarily range from five to 25 years for land improvements, four to 40 years for buildings and improvements and two to 15 years for machinery and equipment. The useful life for proved oil and gas properties is based on the unit-of-production method and varies by well.

Raw Materials Segment Asset Impairments

In the second quarter of 2021, Nucor decided that it would not develop a portion of its unproved oil and natural gas properties (“Portion A”) within the contractually specified time period related to Portion A. As a result of this decision, the Company forfeited its leasehold rights for Portion A. The Company recorded a charge of $42.0 million to write off the value of Portion A that is included in losses and impairments of assets in the consolidated statement of earnings for the year ended December 31, 2021. The decision not to develop Portion A was heavily influenced by the approaching deadline to commence development combined with Portion A’s expected near-term profitability not achieving management’s desired returns relative to the cost of development. A significant portion of the Company’s remaining leasehold interest in unproved oil and natural gas properties are held by production. The carrying value of the remaining portions of unproved oil and natural gas properties was $96.0 million at December 31, 2021.

In the fourth quarter of 2022, Nucor decided that it is unlikely to develop the remaining portions of its unproved oil and natural gas properties. As a result of this decision, Nucor recorded a $96.0 million impairment charge for the entire balance of those assets, which are included in the raw materials segment. The impairment charge is included in losses and impairments of assets in the consolidated statement of earnings for the year ended December 31, 2022. We retain ownership of our leasehold interest in unproved oil and natural gas properties. The carrying value of the leasehold interest in unproved oil and gas properties was zero at December 31, 2022.

Financial Assistance Related to Sheet Mill in West Virginia

Nucor received $275.0 million of financial assistance in 2022 from the West Virginia Department of Economic Development in connection with Nucor’s planned construction of Nucor Steel West Virginia (NSWV), a sheet mill in Mason County, West Virginia. Nucor will earn the financial assistance if, by the Completion Date (defined in the agreement as on or before December 31, 2026), Nucor meets certain capital investment, full-time jobs creation and total annual payroll criteria. Nucor believes that it is probable we will meet these conditions. Nucor spent $179.7 million in 2022 and $95.3 million in 2023 in qualifying expenditures for the construction of NSWV, and that amount is included as a contra-asset in construction in process and equipment deposits that are a part of property, plant and equipment, net on the consolidated balance sheet at December 31, 2023. When the NSWV assets are placed into service, the effect of depreciating the assets constructed with the financial assistance will decrease depreciation expense in the statement of earnings.

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Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2023

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

8. Goodwill and Other Intangible Assets

The change in the net carrying amount of goodwill for the years ended December 31, 2023 and 2022 by segment is as follows:

	(in thousands)
	Steel		Steel			Raw
	Mills		Products			Materials			Total
Balance, December 31, 2021	$	613,175	$	1,439,874		$	774,295		$	2,827,344
Acquisitions		62,011		1,087,906			—			1,149,917
Divestitures		—		—			(39,466	)		(39,466	)
Translation		—		(17,735	)		—			(17,735	)
Balance, December 31, 2022		675,186		2,510,045			734,829			3,920,060
Acquisitions		—		(2,120	)		44,660			42,540
Translation		—		6,247			—			6,247
Balance, December 31, 2023	$	675,186	$	2,514,172		$	779,489		$	3,968,847

The majority of goodwill is not tax deductible.

Intangible assets with estimated useful lives of five to 25 years are amortized on a straight-line or accelerated basis and are comprised of the following:

	(in thousands)
	December 31, 2023				December 31, 2022
	Gross		Accumulated		Gross		Accumulated
	Amount		Amortization		Amount		Amortization
Customer relationships	$	4,190,156	$	1,295,778	$	4,174,724	$	1,087,834
Trademarks and trade names		372,153		168,363		364,106		142,363
Other		109,747		99,900		109,746		96,114
	$	4,672,056	$	1,564,041	$	4,648,576	$	1,326,311

Intangible asset amortization expense was $237.7 million in 2023 ($234.9 million in 2022 and $129.2 million in 2021). Annual amortization expense is estimated to be $235.1 million in 2024, $234.1 million in 2025, $231.1 million in 2026, $227.9 million in 2027 and $204.6 million in 2028.

The Company completed its annual goodwill impairment testing as of the first day of the fourth quarter for each of 2023, 2022 and 2021 and concluded that as of each such date there was no impairment of goodwill for any of its reporting units.

There are no significant historical accumulated impairment charges, by segment or in the aggregate, related to goodwill.

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Equity Investments

12 Months Ended

Dec. 31, 2023

Equity Method Investments And Joint Ventures [Abstract]

Equity Investments

9. Equity Investments

The carrying value of our equity investments in domestic and foreign companies was $479.5 million at December 31, 2023 ($562.3 million at December 31, 2022), and is recorded in other assets in the consolidated balance sheets.

NuMit

Nucor owns a 50% economic and voting interest in NuMit LLC (“NuMit”). NuMit owns 100% of the equity interest in Steel Technologies LLC, an operator of 32 sheet processing facilities located throughout the United States, Canada and Mexico. Nucor accounts for its investment in NuMit (on a one-month lag basis) under the equity method, as control and risk of loss are shared equally between the members of NuMit. Nucor’s investment in NuMit was $431.9 million at December 31, 2023 ($423.9 million at December 31, 2022). Nucor received distributions of $32.9 million, $55.6 million, and $0.2 million from NuMit during 2023, 2022 and 2021, respectively.

Nucor-JFE Steel Mexico

Nucor previously owned a 50% economic and voting interest in Nucor-JFE Steel Mexico, S. de R.L. de C.V. (“NJSM”), a 50-50 joint venture with JFE Steel Corporation (“JFE”) of Japan. In October 2023, Nucor purchased an additional 1% interest in NJSM to bring the total investment to a 51% controlling interest. Beginning in the fourth quarter of 2023, Nucor has accounted for NJSM on a consolidated basis. See Note 25 for purchase price allocation information related to the step acquisition. Nucor’s investment in NJSM was $91.8 million at December 31, 2022.

All Equity Investments

Nucor reviews its equity investments for impairment if and when circumstances indicate that a decline in fair value below their carrying amounts may have occurred. There were no triggering events that caused management to pursue additional testing of our equity method investments in 2023.

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Current Liabilities

12 Months Ended

Dec. 31, 2023

Payables And Accruals [Abstract]

Current Liabilities

10. Current Liabilities

Book overdrafts, included in accounts payable in the consolidated balance sheets, were $159.0 million at December 31, 2023 ($163.6 million at December 31, 2022). Dividends payable, included in accrued expenses and other current liabilities in the consolidated balance sheets, were $133.6 million at December 31, 2023 ($130.5 million at December 31, 2022).

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Debt and Other Financing Arrangements

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Debt and Other Financing Arrangements

11. Debt and Other Financing Arrangements

	December 31,
(in thousands)	2023		2022
Industrial revenue bonds due from 2025 to 2061 (1)	$	1,349,230	$	1,349,230
NJSM notes due from 2024 to 2026 (2)		80,000		—
Notes, 2.000%, due 2025		500,000		500,000
Notes, 3.950%, due 2025		500,000		500,000
Notes, 4.300%, due 2027		500,000		500,000
Term notes, 2.950%, due 2027 (3)		58,040		67,866
Notes, 3.950%, due 2028		500,000		500,000
Notes, 2.700%, due 2030		500,000		500,000
Notes, 3.125%, due 2032		550,000		550,000
Notes, 6.400%, due 2037		543,331		543,331
Notes, 5.200%, due 2043		338,133		338,133
Notes, 4.400%, due 2048		329,219		329,219
Notes, 3.850%, due 2052		550,000		550,000
Notes, 2.979%, due 2055		439,312		439,312
Finance lease obligations		188,889		188,386
Total long-term debt and finance lease obligations		6,926,154		6,855,477
Less premium on debt exchange		171,162		169,737
Less debt issuance costs		32,017		43,471
Total amounts outstanding		6,722,975		6,642,269
Less current maturities of long-term debt (2) (3)		60,000		10,000
Less current portion of finance lease obligations		14,102		18,582
Total long-term debt and finance lease obligations due after    one year	$	6,648,873	$	6,613,687

(1)The industrial revenue bonds had variable rates ranging from 4.20% to 5.10% at December 31, 2023 and 3.65% to 4.28% at December 31, 2022.

(2)The NJSM notes relate to borrowings of NJSM under its General Financing Agreement and Promissory Note (the “NJSM Facility”). The maximum amount NJSM could borrow under the NJSM facility was $80.0 million at December 31, 2023. The NJSM facility is uncommitted. Borrowings under the NJSM facility had variable rates ranging from 2.46% to 6.78% at December 31, 2023.

(3)The term notes were assumed in conjunction with the acquisition of 51% ownership of CSI on February 1, 2022. The original principal amount of the notes was $101.0 million, with a fixed rate of 2.95% until September 30, 2026 when they will convert to a floating rate. Payments of $2.5 million are due quarterly along with accrued interest. The term notes mature on March 31, 2027. (See Note 25.)

Annual aggregate long-term debt maturities are: $60.0 million in 2024, $1.01 billion in 2025, $61.5 million in 2026, $528.0 million in 2027, $549.5 million in 2028 and $4.53 billion thereafter.

Nucor's $1.75 billion revolving credit facility remains undrawn and has a maturity date of November 5, 2026. Costs associated with the amendment were immaterial. The unsecured revolving credit facility provides up to $1.75 billion in revolving loans and allows up to $500.0 million in additional commitments at Nucor’s election in accordance with the terms set forth in the credit agreement. Up to $100.0 million of the credit facility is available for the issuance of letters of credit and up to $500.0 million is available for the issuance of revolving loans for Nucor subsidiaries in accordance with the terms set forth in the credit agreement. The credit facility provides for a pricing grid based upon the credit rating of Nucor’s senior unsecured long-term debt and, alternatively, interest rates quoted by lenders in connection with competitive bidding. The credit facility includes customary financial and other covenants, including a limit on the ratio of funded debt to total capital of 60%, a limit on Nucor’s ability to pledge the Company’s

assets and a limit on consolidations, mergers and sales of assets. As of December 31, 2023, Nucor’s funded debt to total capital ratio was 24%, and Nucor was in compliance with all covenants under the credit facility. No borrowings were outstanding under the credit facility as of December 31, 2023 and 2022.

On March 11, 2022, Nucor completed the issuance and sale of $550.0 million aggregate principal amount of its 3.125% Notes due 2032 (the “2032 Notes”) and $550.0 million aggregate principal amount of its 3.850% Notes due 2052 (the “2052 Notes” and, together with the 2032 Notes, the “2032/2052 Notes”). The net proceeds from the issuance and sale of the 2032/2052 Notes were used along with cash on hand to redeem all of the outstanding $600.0 million aggregate principal amount of our 4.125% Notes due 2022 (the “2022 Notes”) and $500.0 million aggregate principal amount of our 4.000% Notes due 2023 (the “2023 Notes”) pursuant to the terms of the indenture governing the 2022 Notes and the 2023 Notes. The net proceeds from the issuance and sale of the 2032/2052 Notes were $1.09 billion, after expenses and the underwriting discount. Costs of $15.3 million associated with the issuance and sale of the 2032/2052 Notes have been capitalized and will be amortized over the life of the March 2022 Notes.

On April 25, 2022, Nucor redeemed all $500.0 million aggregate principal amount outstanding of the 2023 Notes using a portion of the net proceeds from the issuance and sale of the 2032/2052 Notes. On August 15, 2022, Nucor redeemed all $600.0 million aggregate principal amount outstanding of the 2022 Notes using the remaining portion of the net proceeds from the issuance and sale of the 2032/2052 Notes.

On May 23, 2022, Nucor completed the issuance and sale of $500.0 million aggregate principal amount of its 3.950% Notes due 2025 (the “2025 Notes”) and $500.0 million aggregate principal amount of its 4.300% Notes due 2027 (the “2027 Notes” and, together with the 2025 Notes, the “2025/2027 Notes”). The net proceeds from the issuance and sale of the 2025/2027 Notes were used for general corporate purposes and to pay a portion of the purchase price for the acquisition of C.H.I. The net proceeds from the issuance and sale of the 2025/2027 Notes were $991.9 million, after expenses and the underwriting discount. Costs of $5.9 million associated with the issuance and sale of the 2025/2027 Notes have been capitalized and will be amortized over the life of the 2025/2027 Notes.

Harris Steel has credit facilities totaling approximately $18.7 million, with no outstanding borrowings at December 31, 2023 and 2022.

The business of Nucor Trading S.A. is financed by uncommitted trade credit arrangements with a number of European banking institutions. As of December 31, 2023, Nucor Trading S.A. had outstanding borrowings of $24.2 million ($49.1 million as of December 31, 2022). NJSM maintains an uncommitted trade credit agreement with three banking institutions. As of December 31, 2023, NJSM had outstanding borrowings of $95.0 million under the trade credit agreement. Nucor Trading S.A. and NJSM's credit arrangements are presented in short-term debt in the consolidated balance sheet .

Letters of credit totaling $57.7 million were outstanding as of December 31, 2023 ($43.5 million as of December 31, 2022), related to certain obligations, including workers’ compensation, utilities deposits and credit arrangements by Nucor Trading S.A. for commitments to purchase inventories.

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Capital Stock

12 Months Ended

Dec. 31, 2023

Text Block [Abstract]

Capital Stock

12. Capital Stock

The par value of Nucor’s common stock is $0.40 per share and there are 800 million shares authorized. In addition, 250,000 shares of preferred stock, par value $4.00 per share, are authorized, with preferences, rights and restrictions as may be fixed by the Board of Directors. There are no shares of preferred stock issued or outstanding.

Dividends declared per share were $2.070 in 2023 ($2.010 in 2022 and $1.715 per share in 2021).

The Company repurchased approximately $1.55 billion of its common stock in 2023 (approximately $2.76 billion in 2022 and $3.28 billion in 2021).

On May 11, 2023, the Company announced that the 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. At December 31, 2023, the Company had approximately $3.32 billion available for share repurchases under the program authorized by the Company’s Board of Directors.

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Derivative Financial Instruments

12 Months Ended

Dec. 31, 2023

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

13. Derivative Financial Instruments

The following tables summarize information regarding Nucor’s derivative financial instruments (in thousands):

		Fair Value at
		December 31,
Fair Value of Derivative Financial    Instruments	Consolidated Balance Sheet Location	2023			2022
Asset derivatives designated    as hedging instruments:
Commodity contracts	Other current assets	$	—		$	17,200
Commodity contracts	Other assets		—			17,200
Total asset derivatives		$	—		$	34,400
Liability derivatives designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities	$	(14,700	)	$	—
Commodity contracts	Deferred credits and other liabilities		(3,600	)		—
Total liability derivatives    designated as hedging    instruments			(18,300	)		—
Liability derivatives not designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities		(4,382	)		(501	)
Foreign exchange contracts	Accrued expenses and other current liabilities		(529	)		(869	)
Total liability derivatives not    designated as hedging    instruments			(4,911	)		(1,370	)
Total liability derivatives		$	(23,211	)	$	(1,370	)

The Effect of Derivative Financial Instruments on the Consolidated Statements of Earnings

Derivatives Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
									Amount of Gain or
									(Loss), Net of Tax,
		Amount of Gain or (Loss),							Reclassified from							Amount of Gain or (Loss),
	Statement of	Net of Tax, Recognized							Accumulated OCI into							Net of Tax, Recognized
Derivatives in Cash Flow	Earnings	in OCI on Derivatives							Earnings on Derivatives							in Earnings on Derivatives
Hedging Relationships	Location	(Effective Portion)							(Effective Portion)							(Ineffective Portion)
		2023			2022		2021		2023			2022		2021		2023		2022		2021
Commodity contracts	Cost of products sold	$	(52,077	)	$	76,542	$	15,112	$	(12,077	)	$	51,554	$	9,300	$	—	$	—	$	—

Derivatives Not Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
		Amount of Gain or (Loss)
Derivatives Not Designated	Statement of Earnings	Recognized in Earnings on
as Hedging Instruments	Location	Derivatives
		2023			2022		2021
Commodity contracts	Cost of products sold	$	3,300		$	3,311	$	(27,777	)
Foreign exchange contracts	Cost of products sold		(856	)		11,641		8,114
Total		$	2,444		$	14,952	$	(19,663	)

At December 31, 2023, natural gas swaps covering approximately 44.0 million MMBTUs (extending through December 2026) were outstanding.

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Fair Value Measurements

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements

14. Fair Value Measurements

The following table summarizes information regarding Nucor’s financial assets and liabilities that are measured at fair value. Nucor does not have any non-financial assets or liabilities that are measured at fair value on a recurring basis.

				(in thousands)
				Fair Value Measurements at Reporting Date Using
				Quoted Prices
				in Active		Significant
	Carrying			Markets for		Other			Significant
	Amount in			Identical		Observable			Unobservable
	Consolidated			Assets		Inputs			Inputs
Description	Balance Sheets			(Level 1)		(Level 2)			(Level 3)
As of December 31, 2023
Assets:
Cash equivalents	$	5,724,549		$	5,724,549	$	—		$	—
Short-term investments		747,479			747,479		—			—
Derivative contracts		—			—		—			—
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	)	$	—
As of December 31, 2022
Assets:
Cash equivalents	$	3,182,631		$	3,182,631	$	—		$	—
Short-term investments		576,946			576,946		—			—
Derivative contracts		34,400			—		34,400			—
Restricted cash and cash    equivalents		80,368			80,368		—			—
Total assets	$	3,874,345		$	3,839,945	$	34,400		$	—
Liabilities:
Derivative contracts	$	(1,370	)	$	—	$	(1,370	)	$	—

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 of Nucor's investments in privately held companies, most of which is 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 $6.22 billion at December 31, 2023 (approximately $5.93 billion at December 31, 2022). The debt fair value estimates are classified under Level 2 because such estimates are based on readily available market prices of our debt at December 31, 2023 and 2022, or similar debt with the same maturities, ratings and interest rates.

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Contingencies

12 Months Ended

Dec. 31, 2023

Commitments And Contingencies Disclosure [Abstract]

Contingencies

15. 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.

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Stock-Based Compensation

12 Months Ended

Dec. 31, 2023

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation

16. Stock-Based Compensation

Overview

The Company maintains the Nucor Corporation 2014 Omnibus Incentive Compensation Plan (the “Omnibus Plan”) under which the Company may award stock-based compensation to key employees, officers and non-employee directors. The Company’s stockholders approved an amendment and restatement of the Omnibus Plan on May 14, 2020. The Company also amended the Omnibus Plan on September 14, 2023. The Omnibus Plan, as amended and restated, permits the award of stock options, restricted stock units, restricted shares and other stock-based awards for up to 19.0 million shares of the Company’s common stock. As of December 31, 2023, 4.3 million shares remained available for award under the Omnibus Plan.

The Company also maintains a number of inactive plans under which stock-based awards remain outstanding but no further awards may be made. As of December 31, 2023, 0.1 million shares were reserved for issuance upon the future settlement of outstanding awards under such inactive plans.

Stock Options

Stock options may be granted to Nucor’s key employees, officers and non-employee directors with exercise prices at 100% of the market value on the date of the grant. The stock options granted are generally exercisable at the end of three years and have a term of 10 years.

A summary of activity under Nucor’s stock option plans is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
				Exercise					Exercise					Exercise
	Shares			Price		Shares			Price		Shares			Price
Number of shares under stock options:
Outstanding at beginning of year		837		$	66.76		1,186		$	55.58		3,916		$	50.03
Granted		91		$	133.03		98		$	130.71		138		$	110.74
Exercised		(210	)	$	55.85		(447	)	$	51.14		(2,868	)	$	50.65
Canceled		—		$	—		—		$	—		—		$	—
Outstanding at end of year		718		$	78.33		837		$	66.76		1,186		$	55.58
Stock options exercisable at end of year		433		$	48.33		313		$	59.60		523		$	54.71

The total intrinsic value of stock options (the amount by which the stock price exceeded the exercise price of the stock option on the date of exercise) that were exercised during 2023 was $24.5 million ($32.2 million in 2022 and $67.8 million in 2021).

The following table summarizes information about stock options outstanding at December 31, 2023 (shares in thousands):

	Options Outstanding					Options Exercisable
			Weighted-
			Average	Weighted-				Weighted-
Range of	Number		Remaining Contractual	Average Exercise		Number		Average Exercise
Exercise Prices	Outstanding		Life	Price		Exercisable		Price
$40.00 - $60.00		379	6.3 years	$	43.06		379	$	43.06
$60.01 - $75.00		33	4.4 years	$	65.80		33	$	65.80
$75.01 - $100.00		—	0.0 years	$	—		—	$	—
$100.01 - $120.00		122	7.4 years	$	110.74		15	$	110.74
$120.01 - $133.03		184	8.9 years	$	131.86		6	$	130.71
$40.00 - $133.03		718	7.1 years	$	78.33		433	$	48.33

As of December 31, 2023, the total aggregate intrinsic value of stock options outstanding and stock options exercisable was $68.7 million and $54.5 million, respectively.

The grant date fair value of stock options granted was $49.62 per share in 2023 ($45.27 per share in 2022 and $32.30 per share in 2021). The fair value was estimated using the Black-Scholes options pricing model with the following assumptions:

	2023			2022			2021
Exercise price	$	133.03		$	130.71		$	110.74
Expected dividend yield		1.53	%		1.53	%		1.46	%
Expected stock price volatility		37.55	%		35.77	%		32.86	%
Risk-free interest rate		3.66	%		2.98	%		1.28	%
Expected life (years)		6.5			6.5			6.5

Stock options granted to employees who are eligible for retirement on the date of the grant are expensed immediately since these awards vest upon retirement from the Company. Retirement, for purposes of vesting in these stock options, means termination of employment after satisfying age and years of service requirements. Similarly, stock options granted to employees who will become retirement-eligible prior to the end of the vesting term are expensed over the period through which the employee will become retirement-eligible. Compensation expense for stock options granted to employees who will not become retirement-eligible prior to the end of the vesting term is recognized on a straight-line basis over the vesting period. Compensation expense for stock options was $4.7 million in 2023 ($5.4 million in 2022 and $3.8 million in 2021). As of December 31, 2023, unrecognized compensation expense related to stock options was $2.0 million, which is expected to be recognized over a weighted-average period of 1.9 years.

Restricted Stock Units

Nucor annually grants restricted stock units (“RSUs”) to key employees, officers and non-employee directors. The RSUs granted to key employees and officers vest and are converted to common stock in three equal installments on each of the first three anniversaries of the grant date, provided that a portion of the RSUs awarded to an officer prior to 2018 vest only upon the officer’s retirement. Retirement, for purposes of vesting in these RSUs only, means termination of employment with approval of the Compensation and Executive Development Committee of the Board of Directors after satisfying age and years of service requirements. RSUs granted to a non-employee director are fully vested on the grant date and are payable to the non-employee director in the form of common stock after the termination of the director’s service on the Board of Directors.

RSUs granted to employees who are eligible for retirement on the date of the grant are expensed immediately, and RSUs granted to employees who will become retirement-eligible prior to the end of the vesting term are expensed over the period through which the employee will become retirement-eligible since these awards vest upon retirement from the Company. Compensation expense for RSUs granted to employees who will not become retirement-eligible prior to the end of the vesting term is recognized on a straight-line basis over the vesting period.

Cash dividend equivalents are paid to holders of RSUs each quarter. Dividend equivalents paid on RSUs expected to vest are recognized as a reduction in retained earnings.

The fair value of an RSU is determined based on the closing price of Nucor’s common stock on the date of the grant.

A summary of Nucor’s RSU activity is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units:
Unvested at beginning of year		1,003		$	98.66		1,167		$	60.45		1,830		$	47.33
Granted		831		$	133.03		774		$	130.71		397		$	110.74
Vested		(873	)	$	102.79		(916	)	$	77.21		(997	)	$	57.09
Canceled		(14	)	$	106.76		(22	)	$	93.73		(63	)	$	49.54
Unvested at end of year		947		$	124.89		1,003		$	98.66		1,167		$	60.45

Compensation expense for RSUs was $88.1 million in 2023 ($80.4 million in 2022 and $52.1 million in 2021). The total fair value of shares vested during 2023 was $120.7 million ($120.0 million in 2022 and $109.5 million in 2021). As of December 31, 2023, unrecognized compensation expense related to unvested RSUs was $83.9 million, which is expected to be recognized over a weighted-average period of 1.3 years.

Restricted Stock Awards

Prior to their expiration effective December 31, 2017, the Nucor Corporation Senior Officers Long-Term Incentive Plan and the Nucor Corporation Senior Officers Annual Incentive Plan authorized the award of shares of common stock to officers subject to certain conditions and restrictions. Effective January 1, 2018, the Company adopted supplements to the Omnibus Plan with terms that permit the award of shares of common stock to officers subject to the conditions and restrictions described below, which are substantially similar to those of the expired Senior Officers Long-Term Incentive Plan and Senior Officers Annual Incentive Plan. The expired Senior Officers Long-Term Incentive Plan, together with the applicable supplement, is referred to below as the “LTIP,” and the expired Senior Officers Annual Incentive Plan, together with the applicable supplement, is referred to below as the “AIP.”

The LTIP provides for the award of shares of restricted common stock at the end of each LTIP performance measurement period at no cost to officers if certain financial performance goals are met during the period. One-third of the LTIP restricted stock award vests upon each of the first three anniversaries of the award date or, if earlier, upon the officer’s attainment of age 55 while employed by Nucor. Although participants are entitled to cash dividends and may vote such awarded shares, the sale or transfer of such shares is limited during the restricted period.

The AIP provides for the payment of annual cash incentive awards. An AIP participant may elect, however, to defer payment of up to one-half of an AIP award. In such event, the deferred AIP award is converted into common stock units and credited with a deferral incentive, in the form of additional common stock units, equal to 25% of the number of common stock units attributable to the deferred AIP award. Common stock units attributable to deferred AIP awards are fully vested. Common stock units credited as a deferral incentive vest upon the AIP participant’s attainment of age 55 while employed by Nucor. Vested common stock units are paid to AIP participants in the form of shares of common stock following their termination of employment with Nucor.

A summary of Nucor’s restricted stock activity under the AIP and the LTIP is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units and restricted    stock awards:
Unvested at beginning of year		209		$	108.55		107		$	57.17		127		$	49.94
Granted		414		$	171.38		465		$	128.62		262		$	65.61
Vested		(406	)	$	152.68		(356	)	$	119.29		(273	)	$	62.17
Canceled		(7	)	$	154.05		(7	)	$	113.86		(9	)	$	48.75
Unvested at end of year		210		$	145.55		209		$	108.55		107		$	57.17

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 $37.8 million in 2023 ($51.0 million in 2022 and $79.9 million in 2021). The total fair value of shares vested during 2023 was $68.8 million ($45.9 million in 2022 and $19.6 million in 2021). As of December 31, 2023, unrecognized compensation expense related to unvested restricted stock awards was $7.5 million, which is expected to be recognized over a weighted-average period of 1.6 years.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2023

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

17. Employee Benefit Plans

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 $611.1 million in 2023 ($994.2 million in 2022 and $869.9 million in 2021). The related liability for these benefits is included in salaries, wages and related accruals in the consolidated balance sheets.

Nucor also has a medical plan covering certain eligible early retirees. The unfunded obligation, included in deferred credits and other liabilities in the consolidated balance sheets, totaled $33.2 million at December 31, 2023 ($25.6 million at December 31, 2022). The expense associated with this early retiree medical plan totaled $0.3 million in 2023 ($2.3 million in 2022 and $1.8 million in 2021). The discount rate used by Nucor in determining its benefit obligation was 5.01% in 2023 (5.24% in 2022 and 2.81% in 2021). The health care cost increase trend rate used was 6.8% in 2023 (6.3% in 2022 and 5.3% in 2021). The health care cost increase trend rate is projected to decline gradually to 4.0% by 2049.

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Interest (Income) Expense

12 Months Ended

Dec. 31, 2023

Banking And Thrift Interest [Abstract]

Interest (Income) Expense

18. Interest (Income) Expense

The components of net interest (income) expense are as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Interest expense	$	245,954		$	218,911		$	163,121
Interest income		(275,586	)		(48,695	)		(4,267	)
Interest expense, net	$	(29,632	)	$	170,216		$	158,854

Interest paid was $257.1 million in 2023 ($229.5 million in 2022 and $170.7 million in 2021).

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Income Taxes

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

19. Income Taxes

Components of earnings before income taxes and noncontrolling interests are as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
United States	$	6,203,409	$	10,212,850	$	9,076,921
Foreign		69,348		31,994		123,937
	$	6,272,757	$	10,244,844	$	9,200,858

The provision for income taxes consists of the following (in thousands):

	Year Ended December 31,
	2023			2022			2021
Current:
Federal	$	1,127,369		$	1,894,848		$	1,753,376
State		194,186			304,323			293,752
Foreign		16,992			12,882			19,695
Total current		1,338,547			2,212,053			2,066,823
Deferred:
Federal		20,621			77,961			10,916
State		(18,738	)		(120,440	)		(3,042	)
Foreign		19,536			(4,370	)		3,791
Total deferred		21,419			(46,849	)		11,665
Total provision for income taxes	$	1,359,966		$	2,165,204		$	2,078,488

A reconciliation of the federal statutory tax rate (21%) to the total provision is as follows:

	Year Ended December 31,
	2023			2022			2021
Taxes computed at statutory rate		21.00	%		21.00	%		21.00	%
State income taxes, net of federal income tax benefit		2.14	%		1.41	%		2.49	%
Federal research credit		-0.51	%		-0.10	%		-0.07	%
Equity in losses of foreign joint venture		0.17	%		0.11	%		—
Foreign rate differential		0.10	%		—			-0.03	%
Noncontrolling interests		-1.27	%		-0.85	%		-0.67	%
Other, net		0.05	%		-0.44	%		-0.13	%
Provision for income taxes		21.68	%		21.13	%		22.59	%

For the year ended December 31, 2023, the effective tax rate on continuing operations was 21.68% compared to 21.13% for the year ended December 31, 2022.

The 2023 effective tax rate includes an increased impact, when compared to 2022, from the Federal research credit and Noncontrolling interests lines. The 2022 effective tax rate included a net tax benefit of $76.4 million (-0.75%) for state tax credits, and a net tax benefit of $88.0 million (-0.86%) related to a change in the valuation allowance of a state deferred tax asset. Both items are included in the State income taxes, net of federal income tax benefit line.

Deferred tax assets and liabilities resulted from the following (in thousands):

	December 31,
	2023			2022
Deferred tax assets:
Accrued liabilities and reserves	$	252,794		$	236,132
Allowance for doubtful accounts		39,102			55,160
Inventory		141,460			143,384
Research and development expenditures		133,935			42,109
Post-retirement benefits		8,571			7,997
Hedges		5,146			—
Net operating loss carryforward		93,794			30,295
Tax credit carryforwards		215,630			162,498
Other deferred tax assets		12,016			10,894
Valuation allowance		(210,084	)		(77,510	)
Total deferred tax assets		692,364			610,959
Deferred tax liabilities:
Holdbacks and amounts not due under contracts		(15,714	)		(16,016	)
Hedges		—			(7,426	)
Intangibles		(706,174	)		(724,450	)
Property, plant and equipment		(1,170,080	)		(1,050,579	)
Other deferred tax liabilities		(48,579	)		(51,726	)
Book/Tax differences on debt modifications		(43,869	)		(45,458	)
Total deferred tax liabilities		(1,984,416	)		(1,895,655	)
Total net deferred tax liabilities	$	(1,292,052	)	$	(1,284,696	)

Non-current deferred tax assets included in other assets in the consolidated balance sheets were $40.7 million at December 31, 2023 ($19.3 million at December 31, 2022). Non-current deferred tax liabilities included in deferred credits and other liabilities in the consolidated balance sheets were $1.33 billion at December 31, 2023 ( $1.30 billion at December 31, 2022). Current federal and state income taxes receivable included in other current assets in the consolidated balance sheets were $346.1 million at December 31, 2023 ($564.7 million at December 31, 2022). Nucor paid $1.06 billion in net federal, state and foreign income taxes in 2023 ($2.63 billion and $1.68 billion in 2022 and 2021, respectively).

Nucor has not recognized deferred tax liabilities on its investment in foreign subsidiaries with undistributed earnings that satisfy the permanent reinvestment requirements (the deferred tax liabilities

on the investments not permanently reinvested are immaterial). While Nucor considers future earnings to be permanently reinvested, it is expected that potential future distributions will likely be nontaxable. If this assertion of permanent reinvestment were to change, there may be deferred tax liabilities related to the withholding tax impacts on the actual distribution of certain cumulative undistributed foreign earnings, but the Company believes this amount to be immaterial.

State NOL carryforwards were $185.1 million at December 31, 2023 ($285.4 million at December 31, 2022). If unused, they will expire between 2024 and 2043. Foreign NOL carryforwards were $325.6 million at December 31, 2023 ($79.4 million at December 31, 2022). If unused, the foreign NOL carryforwards will expire between 2026 and 2042.

At December 31, 2023, Nucor had approximately $188.3 million of unrecognized tax benefits, of which $187.6 million would affect Nucor's effective tax rate, if recognized. At December 31, 2022, Nucor had approximately $141.7 million of unrecognized tax benefits, of which $141.1 million would affect Nucor's effective tax rate, if recognized.

A reconciliation of the beginning and ending amounts of unrecognized tax benefits recorded in deferred credits and other liabilities in the consolidated balance sheets is as follows (in thousands):

	December 31,
	2023			2022			2021
Balance at beginning of year	$	141,692		$	95,136		$	47,965
Additions based on tax positions related to current year		44,113			54,438			52,853
Reductions based on tax positions related to    current year		—			—			—
Additions based on tax positions related to prior years		9,886			13,473			2,405
Reductions based on tax positions related to    prior years		(496	)		(9,275	)		(3,060	)
Reductions due to settlements with taxing authorities		—			—			—
Reductions due to statute of limitations lapse		(6,941	)		(12,080	)		(5,027	)
Balance at end of year	$	188,254		$	141,692		$	95,136

We estimate that in the next 12 months, our gross uncertain tax positions, exclusive of interest, could decrease by as much as $5.6 million, as a result of the expiration of the applicable statute of limitations.

During 2023, Nucor recognized $10.4 million of expense in interest and penalties ($9.4 million of expense in 2022 and $5.5 million of expense in 2021). The interest and penalties are included in interest expense, net and marketing, administrative and other expenses, respectively, in the consolidated statements of earnings. As of December 31, 2023, Nucor had approximately $37.4 million of accrued interest and penalties related to uncertain tax positions (approximately $26.9 million at December 31, 2022). The accrued interest and penalties are included in accrued expenses and other current liabilities and deferred credits and other liabilities, respectively, in the consolidated balance sheets.

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 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 Harris 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).

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Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

20. Accumulated Other Comprehensive Income (Loss)

The following tables reflect the changes in accumulated other comprehensive income (loss) by component (in thousands):

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan			Total
December 31, 2022	$	26,100		$	(180,216	)	$	16,599		$	(137,517	)
Other comprehensive income    (loss) before reclassifications		(52,077	)		21,041			(4,787	)		(35,823	)
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (1)		12,077			—			(809	)		11,268
Net current-period other    comprehensive income (loss)		(40,000	)		21,041			(5,596	)		(24,555	)
December 31, 2023	$	(13,900	)	$	(159,175	)	$	11,003		$	(162,072	)

(1)Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan		Total
December 31, 2021	$	1,112		$	(124,868	)	$	8,474	$	(115,282	)
Other comprehensive income    (loss) before reclassifications		76,542			(55,348	)		6,328		27,522
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (2)		(51,554	)		—			1,797		(49,757	)
Net current-period other    comprehensive income (loss)		24,988			(55,348	)		8,125		(22,235	)
December 31, 2022	$	26,100		$	(180,216	)	$	16,599	$	(137,517	)

Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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Earnings Per Share

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Earnings Per Share

21. Earnings Per Share

The computations of basic and diluted net earnings per share are as follows (in thousands, except per share data):

Year Ended December 31,	2023			2022			2021
Basic net earnings per share:
Basic net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,946	)		(31,172	)		(32,311	)
Net earnings available to common stockholders	$	4,507,855		$	7,576,165		$	6,795,150
Basic average shares outstanding		249,773			262,348			292,491
Basic net earnings per share	$	18.05		$	28.88		$	23.23
Diluted net earnings per share:
Diluted net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,897	)		(31,057	)		(32,190	)
Net earnings available to common stockholders	$	4,507,904		$	7,576,280		$	6,795,271
Diluted average shares outstanding:
Basic average shares outstanding		249,773			262,348			292,491
Dilutive effect of stock options and other		639			828			899
		250,412			263,176			293,390
Diluted net earnings per share	$	18.00		$	28.79		$	23.16

The following stock options were excluded from the computation of diluted net earnings per share because their effect would have been anti-dilutive (shares in thousands):

Year Ended December 31,	2023		2022		2021
Anti-dilutive stock options:
Weighted-average shares		-		25		145
Weighted-average exercise price	$	-	$	130.71	$	91.06

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Segments

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Segments

22. 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 businesses; rebar distribution businesses; and Nucor’s equity method investments in NuMit and NJSM (the latter of which Nucor acquired an additional 1% interest in the fourth quarter of 2023, bringing our total equity ownership to a 51% controlling interest). 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, steel grating, tubular products businesses, steel racking, piling products business, wire and wire mesh, overhead doors, 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, two facilities that produce direct reduced iron used by the steel mills; and our natural gas production operations.

Corporate/eliminations include items such as net interest expense on long-term debt, 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 were as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Net sales to external customers:
Steel mills	$	20,092,662		$	24,189,858		$	24,145,396
Steel products		12,758,939			15,060,328			9,727,943
Raw materials		1,861,900			2,262,281			2,610,600
	$	34,713,501		$	41,512,467		$	36,483,939
Intercompany sales:
Steel mills	$	4,812,479		$	5,859,367		$	6,297,688
Steel products		455,816			547,219			360,063
Raw materials		12,363,577			13,715,176			15,762,685
Corporate/eliminations		(17,631,872	)		(20,121,762	)		(22,420,436	)
	$	—		$	—		$	—
Depreciation expense:
Steel mills	$	610,510		$	529,005		$	465,733
Steel products		131,189			115,501			99,248
Raw materials		173,657			171,060			159,886
Corporate		15,229			11,126			10,539
	$	930,585		$	826,692		$	735,406
Amortization expense:
Steel mills	$	7,829		$	7,829		$	7,829
Steel products		202,129			199,379			93,160
Raw materials		27,772			27,734			28,168
	$	237,730		$	234,942		$	129,157
Earnings before income taxes and noncontrolling    interests:
Steel mills	$	3,712,470		$	7,199,087		$	9,735,020
Steel products		3,443,950			4,093,105			1,291,450
Raw materials		253,506			496,823			549,956
Corporate/eliminations		(1,137,169	)		(1,544,171	)		(2,375,568	)
	$	6,272,757		$	10,244,844		$	9,200,858
Segment assets:
Steel mills	$	15,407,266		$	14,157,229		$	13,235,463
Steel products		10,914,870			12,087,145			7,845,010
Raw materials		3,546,759			3,383,114			3,870,806
Corporate/eliminations		5,471,604			2,851,722			871,793
	$	35,340,499		$	32,479,210		$	25,823,072
Capital expenditures:
Steel mills	$	1,440,478		$	1,453,277		$	1,336,276
Steel products		367,170			267,128			187,152
Raw materials		352,642			181,680			128,765
Corporate		54,920			50,380			48,171
	$	2,215,210		$	1,952,465		$	1,700,364

Net sales by product were as follows (in thousands). Further product group breakdown is impracticable.

	Year Ended December 31,
	2023		2022		2021
Net sales to external customers:
Sheet	$	9,146,676	$	11,437,799	$	12,675,679
Bar		5,993,751		7,031,798		6,039,187
Structural		2,429,211		2,928,072		2,597,768
Plate		2,523,024		2,792,188		2,832,762
Tubular Products		1,588,211		1,944,532		2,194,732
Rebar Fabrication		2,181,929		2,205,960		1,794,658
Joist		2,211,965		2,958,235		1,351,235
Deck		1,712,474		2,392,438		1,167,162
Other Steel Products		5,064,360		5,559,164		3,220,155
Raw Materials		1,861,900		2,262,281		2,610,601
	$	34,713,501	$	41,512,467	$	36,483,939

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Revenue

12 Months Ended

Dec. 31, 2023

Revenue From Contract With Customer [Abstract]

Revenue

23. Revenue

Nucor recognizes revenue when obligations under the terms of contracts with our customers are satisfied and collection is reasonably assured; generally, obligations under the terms of contracts are satisfied upon shipment or when control is transferred. Revenue is measured as the amount of consideration expected to be received in exchange for transferring the goods. In addition, revenue is deferred when cash payments are received or due in advance of performance.

The durations of Nucor’s contracts with customers are generally one year or less. Customer payment terms are generally 30 days.

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 $313.8 million as of December 31, 2023 ($285.0 million as of December 31, 2022), and are included in accrued expenses and other current liabilities in the consolidated balance sheets. The amount of revenue reclassified from the December 31, 2022 contract liabilities balance during 2023 was approximately $191.8 million.

Nucor disaggregates its revenues by major source in the same manner as presented in the net sales by product table in the segment footnote (see Note 22).

Steel Mills Segment

Sheet – For the majority of sheet products, we transfer control and recognize a sale when we ship the product from the sheet mill to our customer. The amount of consideration we receive and revenue we recognize for spot market sales are based upon prevailing prices at the time of sale. The amount of consideration we receive and revenue we recognize for contract customers are based primarily on pricing formulas that incorporate monthly or quarterly price adjustments which reflect changes in the current market-based indices and/or raw material costs near the time of shipment.

The amount of tons sold to contract customers at any given time depends on a variety of factors, including our consideration of current and future market conditions, our strategy to appropriately balance spot and contract tons in a manner to meet our customers’ requirements while considering the expected profitability, our desire to sustain a diversified customer base and our end-use customers’ perceptions about future market conditions. These contracts are typically one year or less. Contract sales within the steel mills segment are most notable in our sheet operations, as it is common for contract sales to account for the majority of sheet sales in a given year.

Bar, Structural and Plate – For the majority of bar, structural and plate products, we transfer control and recognize a sale when we ship the product from the mill to our customer. The significant majority of bar, structural and plate product sales are spot market sales, and the amount of consideration we receive and revenue we recognize for those sales are based upon prevailing prices at the time of sale.

Steel Products Segment

Tubular Products – The tubular products businesses transfer control and recognize a sale when the products are shipped from our operating locations to our customers. The majority of tubular product sales are spot market sales, and the amount of consideration we receive and revenue we recognize for those sales are based upon prevailing prices at the time of sale.

Rebar Fabrication – The majority of revenue is derived from contracts with customers for the supply of fabricated rebar. As the majority of contracts with customers are fixed price contracts to complete a job, control transfers over time and revenue is recognized (if collection is reasonably assured) over time using an input method, based on the amount of rebar shipped from the Company’s operating locations relative to the total expected amount of rebar required to complete the job.

For contracts to supply fabricated rebar and install it at the customer’s job site, there are two performance obligations: (1) the supply of the fabricated rebar and (2) the installation of the supplied rebar at the customer’s job site. For the supply of fabricated rebar performance obligation, the transaction price allocated to this performance obligation is determined at the start of the contract, based on the awarded contract price for the supplied fabricated rebar and revenue is recognized over time based on the amount of rebar shipped from the Company’s operating locations relative to the total expected amount of rebar required to complete the job. For the installation of supplied rebar performance obligation, the transaction price allocated to this performance obligation is determined at the start of the contract, based on the awarded contract price for the installation of fabricated rebar and revenue is recognized over time based on the amount of rebar installed relative to the total expected amount of rebar required to be installed to complete the job.

While a majority of the contracts with customers are fixed price contracts to complete a job, variable consideration can occur from contract modifications relating to change orders and price escalations caused by changes in underlying material costs. In these situations, the additional variable consideration is recognized cumulatively in the period in which the contract modification is approved and collection is reasonably assured unless the change order relates to additional distinct goods or services at standalone selling prices in which case they are accounted for prospectively. Management reviews these situations on a case-by-case basis and considers a variety of factors, including relevant experience with similar types of performance obligations, the Company’s experience with the customer and collectability considerations.

Other Steel Products – Other steel products include our joist, deck, cold finish, metal building systems, insulated metal panels, piling, overhead doors, and the other remaining businesses that comprise the steel products segment. Generally, for these businesses, we transfer control and recognize a sale when we ship the product from our operating locations to our customers. The amount of consideration we receive and revenue we recognize for those sales are agreed upon with the customers before the product is shipped.

Included in the other steel products businesses is Nucor Warehouse Systems (“NWS”). The majority of NWS’s revenues are related to supply and installation contracts. Revenue on NWS’s supply and installation contracts is primarily recognized over time, typically between three and six months, using the cost-to-cost input measure (e.g., costs incurred to date relative to total estimated costs at completion) to measure progress because it best depicts the transfer of assets to the customer which occurs as the Company incurs costs on the contracts.

Raw Materials Segment

The majority of the raw materials segment revenue from outside customers is generated by DJJ. We transfer control and recognize a sale based on the terms of the agreement with the customer, which is generally when the product has met the delivery requirements. The amount of consideration we receive and revenue we recognize for those sales is based on the contract with the customer, which generally reflects current market prices at the time the contract is entered into.

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Restricted Cash and Cash Equivalents

12 Months Ended

Dec. 31, 2023

Restricted Cash And Cash Equivalents [Abstract]

Restricted Cash and Cash Equivalents

24. Restricted Cash and Cash Equivalents

As of December 31, 2023, restricted cash and cash equivalents totaled $3.5 million ($80.4 million as of December 31, 2022), and primarily consisted of net proceeds from the issuance of $197.0 million in August 2021 and $162.6 million in July 2020 of 40-year variable-rate Green Bonds. The restricted cash and cash equivalents related to the debt issuance are being held in a trust account and will be used to partially fund the capital costs, in particular the expenditures associated with pollution prevention and control (including waste recycling and waste reduction), of the construction of Nucor’s plate mill located in Brandenburg, Kentucky. Funds will be disbursed from the trust account as qualified expenditures for the construction of the Brandenburg facility are made ($78.9 million during 2023 and $64.2 million during 2022). Interest earned on funds held in the trust account is subject to the same usage requirements as the bond proceeds principal. Since the restricted cash, interest and dividends must be used for the construction of the Brandenburg facility and relate to a long-term liability, the entire balance has been classified as a non-current asset.

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Acquisitions

12 Months Ended

Dec. 31, 2023

Business Combinations [Abstract]

Acquisitions

25. Acquisitions

Acquisition of Additional Interest in NJSM

On October 27, 2023, Nucor used cash on hand to acquire an additional 1% equity interest in NJSM bringing our total equity ownership to a 51% controlling interest. We believe this acquisition allows NJSM to benefit from Nucor's galvanized sheet sales expertise in North America.

Prior to this transaction, we accounted for our 50% ownership in NJSM under the equity method. As part of the purchase price allocation for this step acquisition, we remeasured our previously held interest as of the acquisition date which resulted in a $21.0 million loss recorded in marketing, administrative and other expenses. Neither our previously held equity interest in NJSM nor the loss on remeasuring the equity interest are material to our financial statements.

We allocated the purchase price for NJSM to its individual assets acquired and liabilities assumed. While the purchase price allocation is substantially complete, it is still preliminary and subject to change.

The following table summarizes the fair values of the assets acquired and liabilities assumed of NJSM, as well as the fair value of the 49% noncontrolling interest not acquired by Nucor, as of October 27, 2023, the date of acquisition (in thousands):

Cash	$	11,050
Accounts receivable		10,968
Inventory		44,661
Other current assets		18,053
Property, plant and equipment		257,537
Goodwill		—
Other intangible assets		—
Other assets		612
Total assets acquired		342,881
Short-term debt		95,000
Current portion of long-term debt		50,000
Other current liabilities		13,502
Long-term debt due after one year		30,000
Other liabilities		1,379
Total liabilities assumed		189,881
Net assets acquired at 100%		153,000
Less: fair value of Noncontrolling interest		74,970
Net assets acquired at 51%	$	78,030

The determination of the fair value of noncontrolling interest was calculated using the implied value of 100% of the enterprise value as the purchase price included an immaterial implied control premium on a per-share basis and the noncontrolling interest shareholder will benefit from the transaction and participate in the economic benefits of NJSM after the acquisition.

The NJSM financial results were included as part of the steel mills segment (see Note 22) beginning on October 27, 2023, the acquisition date. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of NJSM and, therefore, this information is not presented.

Acquisition of C.H.I.

On June 24, 2022, Nucor used cash on hand to acquire the assets of C.H.I. for a purchase price, net of cash acquired, of approximately $3.00 billion. C.H.I. is a leading manufacturer of overhead doors for residential and commercial markets in the United States and Canada. Commercial overhead doors are used in warehousing and retail, areas that Nucor has focused its attention on recently through other value-added products such as insulated metal panels (CENTRIA, Metl-Span and TrueCore brands) and steel racking solutions (Nucor Warehouse Systems). It is expected that the C.H.I. acquisition also will benefit from Nucor’s recent paint line investments at its Hickman, Arkansas and Crawfordsville, Indiana sheet mills. The C.H.I. financial results are included as part of the steel products segment (see Note 22) beginning on June 24, 2022, the date Nucor acquired it.

We allocated the purchase price for C.H.I. to its individual assets acquired and liabilities assumed.

The following table summarizes the fair values of the assets acquired and liabilities assumed of C.H.I. as of June 24, 2022, the date of acquisition (in thousands):

Cash	$	159,066
Accounts receivable		77,530
Inventory		52,515
Other current assets		18,177
Property, plant and equipment		117,392
Goodwill		1,033,192
Other intangible assets		2,389,180
Other assets		9,559
Total assets acquired		3,856,611
Current liabilities		75,146
Deferred income taxes		578,019
Other liabilities		7,509
Total liabilities assumed		660,674
Net assets acquired	$	3,195,937

The following table summarizes the purchase price allocation to the identifiable intangible assets of C.H.I. as of June 24, 2022, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	2,242,000	25 years
Trademarks and trade names		147,000	13 years
Backlog		180	1 year
	$	2,389,180

The goodwill of $1.04 billion is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $5.6 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of C.H.I. and, therefore, this information is not presented.

Acquisition of CSI

On February 1, 2022, Nucor used cash on hand to acquire a 51% controlling ownership position in CSI by purchasing a 50% equity interest from a subsidiary of Vale S.A. for a cash purchase price of approximately $400.0 million, adjusted for net debt and working capital at closing, as well as a 1% equity interest from JFE Steel Corporation. CSI is a flat-rolled steel converter located in California with the capability to produce more than two million tons of finished steel and steel products annually. The company has five product lines, including hot rolled, pickled and oiled, cold rolled, galvanized and electric resistance welded (“ERW”) pipe. Key end-use markets served by CSI include customers in the construction, service center and energy industries. We believe this acquisition helps give Nucor a strong presence in the Western region of the United States and grows our ability to produce a wide range of value-added sheet products. The CSI financial results were included as part of the steel mills segment (see Note 22) beginning on February 1, 2022, the date Nucor acquired its 51% controlling ownership position.

We allocated the purchase price for CSI to its individual assets acquired and liabilities assumed. The purchase price allocation is complete.

The following table summarizes the fair values of 100% of the assets and liabilities of CSI, as well as the fair value of the 49% noncontrolling interest not acquired by Nucor, as of February 1, 2022, the date Nucor acquired its 51% controlling ownership position (in thousands):

Cash	$	98,537
Accounts receivable		159,257
Inventory		354,614
Other current assets		5,298
Property, plant and equipment		566,714
Goodwill		62,011
Other intangible assets		—
Other assets		7,071
Total assets acquired		1,253,502
Current portion of long-term debt		9,826
Other current liabilities		162,808
Long-term debt due after one year		67,866
Other liabilities		139,947
Total liabilities assumed		380,447
Net assets acquired at 100%		873,055
Less: Fair value of noncontrolling interest		427,797
Net assets acquired at 51%	$	445,258

The determination of the fair value of the noncontrolling interest was calculated using the implied value of 100% of the enterprise value of the business using the purchase price as the purchase price did not include a control premium on a per-share basis and the noncontrolling interest shareholder will participate equally in the economic benefits of CSI after the acquisition.

The goodwill of $62.0 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel mills segment (see Note 8). The goodwill is attributable to the assembled workforce acquired, expanding our Western United States presence and CSI’s value-added product capabilities. None of the goodwill is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of CSI and, therefore, this information is not presented.

Acquisition of IMP Business of Cornerstone

On August 9, 2021, Nucor used cash on hand to acquire the assets of the insulated metal panels, or, IMP, business of Cornerstone Building Brands, Inc. (“Cornerstone”) for a purchase price of $1.00 billion. The Company believes this acquisition will broaden the value-added solutions that Nucor Buildings group provides to targeted end markets such as warehousing, distribution and data centers. We expect these end-use markets to continue to grow in the coming years and that the use of IMP products within them will also increase. IMPs facilitate cost-effective climate control in the built environment and reduce energy usage and overall operations-related GHG emissions for owners and lessees. The acquired IMP business is comprised of two industry leading brands, CENTRIA and Metl-Span, and has seven manufacturing facilities located throughout North America, complementing Nucor’s existing IMP business, TrueCore, LLC. The IMP business financial results are included as part of the steel products segment (see Note 22) beginning on August 9, 2021, the date Nucor acquired it.

We have allocated the purchase price for the IMP business to its individual assets acquired and liabilities assumed.

The following table summarizes the fair values of the assets acquired and liabilities assumed of the IMP business as of August 9, 2021, the date of acquisition (in thousands):

Cash	$	—
Accounts receivable		47,037
Inventory		73,000
Other current assets		4,478
Property, plant and equipment		102,966
Goodwill		480,167
Other intangible assets		364,000
Other assets		13,515
Total assets acquired		1,085,163
Current liabilities		46,620
Other liabilities		12,855
Total liabilities assumed		59,475
Net assets acquired	$	1,025,688

The following table summarizes the purchase price allocation to the identifiable intangible assets of the IMP business as of August 9, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	309,000	10 years
Trademarks and trade name		45,000	10 years
Backlog		10,000	1 year
	$	364,000

The goodwill of $480.2 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $480.2 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of the IMP business and, therefore, this information is not presented.

Acquisition of Hannibal

On August 20, 2021, Nucor used cash on hand to acquire Hannibal for a purchase price of $370.0 million. Nucor purchased 100% of Hannibal's outstanding shares from its Employee Stock Ownership Plan. Hannibal is a leading national provider of steel racking solutions to warehouses. We expect that Hannibal’s business, serving customers in the e-commerce, industrial, food storage and retail segments, will also continue to grow in the coming years. Hannibal has manufacturing facilities in Los Angeles and Houston, as well as three distribution centers. Hannibal’s financial results are included as part of the steel products segment (see Note 22) beginning on August 20, 2021, the date Nucor acquired it.

We have allocated the purchase price for Hannibal to its individual assets acquired and liabilities assumed.

The following table summarizes the fair values of the assets acquired and liabilities assumed of Hannibal as of August 20, 2021, the date of acquisition (in thousands):

Cash	$	124,655
Accounts receivable		115,728
Inventory		65,005
Other current assets		2,113
Property, plant and equipment		116,955
Goodwill		84,922
Other intangible assets		201,700
Other assets		8,776
Total assets acquired		719,854
Current liabilities		228,750
Finance lease obligations		80,124
Other liabilities		13,155
Total liabilities assumed		322,029
Net assets acquired	$	397,825

The following table summarizes the purchase price allocation to the identifiable intangible assets of Hannibal as of August 20, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	144,000	10 years
Trademarks and trade name		26,000	7 years
Backlog		31,700	1 year
	$	201,700

The goodwill of $84.9 million is calculated as the excess of the purchase price over the fair values of the assets acquired and liabilities assumed and has been allocated to the steel products segment (see Note 8). The goodwill is attributable to expected synergies within the steel products segment. Goodwill recognized for tax purposes was $84.9 million, all of which is deductible for tax purposes. Pro-forma results of operations for the Company would not be materially different as a result of the acquisition of Hannibal and, therefore, this information is not presented.

Other Acquisitions

Other smaller acquisitions, exclusive of purchase price adjustments made and net of cash acquired, totaled approximately $70.8 million, $169.6 million and $134.8 million in 2023, 2022 and 2021, respectively. Pro-forma results of operations for the Company would not be materially different if the aggregate acquisitions made during 2023, 2022 and 2021 were included and, therefore, this information is not presented.

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Quarterly Information (Unaudited)

12 Months Ended

Dec. 31, 2023

Quarterly Financial Information Disclosure [Abstract]

Quarterly Information (Unaudited)

26. Quarterly Information (Unaudited)

	(in thousands, except per share data)
	Year Ended December 31, 2023
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	8,709,980	$	9,523,256	$	8,775,734	$	7,704,531
Gross margin		1,998,202		2,501,674		1,920,800		1,393,718
Net earnings before noncontrolling interests		1,231,629		1,587,075		1,221,255		872,832
Net earnings attributable to Nucor    stockholders		1,136,542		1,461,354		1,141,506		785,399
Net earnings per share:
Basic	$	4.47	$	5.82	$	4.58	$	3.17
Diluted	$	4.45	$	5.81	$	4.57	$	3.16

	(in thousands, except per share data)
	Year Ended December 31, 2022
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	10,493,282	$	11,794,474	$	10,500,755	$	8,723,956
Gross margin		3,458,139		4,104,263		2,843,391		2,097,487
Net earnings before noncontrolling interests (1)		2,227,115		2,727,237		1,799,043		1,326,245
Net earnings attributable to Nucor    stockholders (1)		2,095,623		2,561,233		1,694,748		1,255,733
Net earnings per share:
Basic	$	7.69	$	9.69	$	6.51	$	4.90
Diluted	$	7.67	$	9.67	$	6.50	$	4.89

(1)Fourth quarter of 2022 results include an after-tax net benefit of $60.4 million related to state tax credits, an after-tax net benefit of $88.0 million related to a change in the valuation allowance of a state deferred tax asset, and a pre-tax $96.0 million write-off of the remaining carrying value of our leasehold interest in unproved oil and gas properties. This charge is included in the raw materials segment.

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash equivalents are recorded at cost plus accrued interest, which approximates fair value, and have original maturities of three months or less at the date of purchase. Cash and cash equivalents are maintained primarily with a few high-credit quality financial institutions.

Short-term Investments

Short-term Investments

Short-term investments are recorded at cost plus accrued interest, which approximates fair value. Unrealized gains and losses on investments classified as available-for-sale are recorded as a component of accumulated other comprehensive income (loss). Management determines the appropriate classification of its investments at the time of purchase and re-evaluates such determination at each balance sheet date.

Inventories

Inventories

Inventories are stated at the lower of cost or net realizable value. The Company records any amount required to reduce the carrying value of inventory to net realizable value as a charge to cost of products sold. Scrap and scrap substitute costs are a very significant component of the raw material, semi-finished and finished product inventory balances. The vast majority of the Company’s inventory is recorded on the first-in, first-out method. Production costs are applied to semi-finished and finished product inventory from the approximate period in which they are produced.

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment is stated at cost, except for property, plant and equipment acquired through acquisitions which is recorded at acquisition date fair value. With the exception of our natural gas wells, depreciation primarily is provided on a straight-line basis over the estimated useful lives of the assets. Depletion of all capitalized costs associated with our natural gas producing properties is expensed on a unit-of-production basis by individual field as the gas from the proved developed reserves is produced. The costs of acquiring unproved natural gas leasehold acreage are capitalized. When proved reserves are found on unproved properties, the associated leasehold cost is transferred to proved properties. Unproved leases are reviewed periodically for any impairment triggering event, and a valuation allowance is provided for any estimated decline in value. The costs of planned major maintenance activities are capitalized as part of other current assets and amortized over the period until the next scheduled major maintenance activity. All other repairs and maintenance activities are expensed when incurred.

Goodwill and Other Intangibles

Goodwill and Other Intangibles

Goodwill is the excess of cost over the fair value of net assets of businesses acquired. Goodwill is not amortized but is tested annually for impairment and whenever events or circumstances change that would make it more likely than not that an impairment may have occurred. We perform our annual impairment analysis as of the first day of the fourth quarter each year. The evaluation of impairment involves comparing the current estimated fair value of each reporting unit, which is a level below the reportable segment, to the recorded value, including goodwill. When appropriate, Nucor performs a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. For certain reporting units, it is necessary to perform a quantitative analysis. In these instances, a discounted cash flow model is used to determine the current estimated fair value of these reporting units. A number of significant assumptions and estimates are involved in the application of the discounted cash flow model to forecast operating cash flows, which could include market growth and market share, sales volumes and prices, raw materials and other costs to produce, discount rate and estimated capital needs. Management considers historical experience and all available information at the time the fair values of its reporting units are estimated. Assumptions in estimating future cash flows are subject to a high degree of judgment and complexity. Changes in assumptions and estimates may affect the fair value of goodwill and could result in impairment charges in future periods.

Finite-lived intangible assets are amortized over their estimated useful lives on a straight-line or accelerated basis.

Long-Lived Asset Impairments

Long-Lived Asset Impairments

We evaluate our property, plant and equipment and finite-lived intangible assets for potential impairment on an individual asset basis or at the lowest level asset grouping for which independent cash flows can be separately identified. Asset impairments are assessed whenever circumstances indicate that the carrying amounts of those productive assets could exceed their projected undiscounted cash flows. When it is determined that impairment exists, the related assets are written down to their estimated fair market value.

Equity Method Investments

Equity Method Investments

Investments in joint ventures in which Nucor shares control over the financial and operating decisions but in which Nucor is not the primary beneficiary are accounted for under the equity method.

Each of the Company’s equity method investments is subject to a review for impairment if, and when, circumstances indicate that a decline in fair value below its carrying amount may have occurred. Examples of such circumstances include, but are not limited to, a significant deterioration in the earnings performance or business prospects of the investee; missed financial projections; a significant adverse change in the regulatory, tax, economic or technological environment of the investee; a significant adverse change in the general market condition of either the geographic area or the industry in which the investee operates; and recurring negative cash flows from operations. If management considers the decline to be other than temporary, the Company would write down the related investment to its estimated fair market value.

Revenue Recognition

Revenue Recognition

Nucor recognizes revenue when obligations under the terms of contracts with our customers are satisfied and collection is reasonably assured; generally, obligations under the terms of contracts are satisfied upon shipment or when control is transferred. Revenue is measured as the amount of consideration expected to be received in exchange for transferring the goods. In addition, revenue is deferred when cash payments are received or due in advance of performance. See Note 23 for further information.

Income Taxes

Income Taxes

Nucor utilizes the liability method of accounting for income taxes. Under the liability method, deferred taxes are determined based on the temporary differences between the financial statement and tax basis of assets and liabilities using tax rates expected to be in effect during the years in which the basis differences reverse. A valuation allowance is recorded when it is more likely than not that some of the deferred tax assets will not be realized.

Nucor recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Potential accrued interest and penalties related to unrecognized tax benefits are recognized as a component of interest expense and other expenses.

Stock-Based Compensation

Stock-Based Compensation

The Company recognizes the cost of stock-based compensation as an expense using fair value measurement methods. The assumptions used to calculate the fair value of stock-based compensation granted are evaluated and revised for new grants, as necessary, to reflect market conditions and experience.

Foreign Currency Translation

Foreign Currency Translation

For Nucor’s operations where the functional currency is other than the U.S. dollar, assets and liabilities have been translated at year-end exchange rates, and income and expenses have been translated using average exchange rates for the respective periods. Adjustments resulting from the process of translating an entity’s financial statements into the U.S. dollar have been recorded in accumulated other comprehensive income (loss) and are included in net earnings only upon sale or liquidation of the underlying investments. Foreign currency transaction gains and losses are included in net earnings in the period they occur.

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 (“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.

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Leases (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure Of Leases [Abstract]

Supplemental statement of earnings information leases operating finance

Supplemental statement of earnings information related to our leases is as follows (in thousands):

		Year Ended December 31,
	Statement of Earnings Classification	2023		2022		2021
Operating lease cost	Cost of products sold	$	26,750	$	23,666	$	21,503
Operating lease cost	Marketing, administrative and other expenses		3,199		3,239		2,989
Total operating    lease cost		$	29,949	$	26,905	$	24,492
Finance lease cost:
Amortization of leased    assets	Cost of products sold	$	19,171	$	19,113	$	13,513
Interest on lease    liabilities	Interest expense, net		11,964		12,229		10,670
Total finance lease    cost		$	31,135	$	31,342	$	24,183
Total lease cost		$	61,084	$	58,247	$	48,675

Supplemental cash flow information leases operating finance

Supplemental cash flow information related to our leases is as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
Cash paid for amounts included in measurement of lease    liabilities:
Operating cash flows from operating leases	$	30,230	$	26,518	$	27,310
Operating cash flows from finance leases	$	11,964	$	12,229	$	10,670
Financing cash flows from finance leases	$	16,840	$	16,008	$	11,425
Non-cash investing and financing activities:
Additions to right-of-use assets obtained from
Operating lease liabilities	$	26,955	$	33,924	$	19,711
Finance lease liabilities	$	16,473	$	27,030	$	99,535

Lessee balance sheet information

Supplemental balance sheet information related to our leases is as follows (in thousands):

		December 31,
	Balance Sheet Classification	2023		2022
Assets:
Operating lease	Other assets	$	102,878	$	101,499
Finance lease	Property, plant and equipment, net		166,780		169,076
Total leased		$	269,658	$	270,575
Liabilities:
Current operating	Accrued expenses and other current liabilities	$	25,405	$	23,621
Current finance	Current portion of long-term debt and finance lease obligations		14,102		18,582
Non-current operating	Deferred credits and other liabilities		81,673		81,455
Non-current finance	Long-term debt and finance lease obligations due after one year		174,787		169,804
Total leased		$	295,967	$	293,462

Weighted average lease term discount rate finance operating

Weighted-average remaining lease term and discount rate for our leases are as follows:

	December 31, 2023
Weighted-average remaining lease term - operating leases	7.7 Years
Weighted-average remaining lease term - finance leases	14.3 Years
Weighted-average discount rate - operating leases		4.0	%
Weighted-average discount rate - finance leases		11.7	%

Lessee operating finance lease liability maturity

Maturities of lease liabilities by year for our leases were as follows as of December 31, 2023 (in thousands):

	Operating Leases			Finance Leases
Maturities of lease liabilities, year ending December 31,
2024	$	29,014		$	24,890
2025		22,032			22,391
2026		18,240			20,456
2027		13,569			19,860
2028		11,334			20,059
Thereafter		33,717			160,729
Total lease payments	$	127,906		$	268,385
Less imputed interest		(20,828	)		(79,496	)
Present value of lease liabilities	$	107,078		$	188,889

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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2023

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, Plant and Equipment is carried at historical cost, net of accumulated depreciation. Net Property, Plant and Equipment by major asset class consisted of the following at December 31, 2023 (in thousands):

	December 31,
	2023			2022
Land and improvements, net	$	1,183,173		$	905,598
Buildings and improvements		2,550,959			2,230,672
Machinery and equipment		16,328,126			15,125,653
Proved oil and gas properties		558,703			558,486
Leasehold interest in unproved oil and gas properties		96,000			96,000
Construction in process and equipment deposits		2,121,788			1,815,638
		22,838,749			20,732,047
Less accumulated depreciation		(11,788,982	)		(11,115,127	)
	$	11,049,767		$	9,616,920

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Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

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 years ended December 31, 2023 and 2022 by segment is as follows:

	(in thousands)
	Steel		Steel			Raw
	Mills		Products			Materials			Total
Balance, December 31, 2021	$	613,175	$	1,439,874		$	774,295		$	2,827,344
Acquisitions		62,011		1,087,906			—			1,149,917
Divestitures		—		—			(39,466	)		(39,466	)
Translation		—		(17,735	)		—			(17,735	)
Balance, December 31, 2022		675,186		2,510,045			734,829			3,920,060
Acquisitions		—		(2,120	)		44,660			42,540
Translation		—		6,247			—			6,247
Balance, December 31, 2023	$	675,186	$	2,514,172		$	779,489		$	3,968,847

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 are comprised of the following:

	(in thousands)
	December 31, 2023				December 31, 2022
	Gross		Accumulated		Gross		Accumulated
	Amount		Amortization		Amount		Amortization
Customer relationships	$	4,190,156	$	1,295,778	$	4,174,724	$	1,087,834
Trademarks and trade names		372,153		168,363		364,106		142,363
Other		109,747		99,900		109,746		96,114
	$	4,672,056	$	1,564,041	$	4,648,576	$	1,326,311

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Debt and Other Financing Arrangements (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Debt and Other Financing Arrangements

	December 31,
(in thousands)	2023		2022
Industrial revenue bonds due from 2025 to 2061 (1)	$	1,349,230	$	1,349,230
NJSM notes due from 2024 to 2026 (2)		80,000		—
Notes, 2.000%, due 2025		500,000		500,000
Notes, 3.950%, due 2025		500,000		500,000
Notes, 4.300%, due 2027		500,000		500,000
Term notes, 2.950%, due 2027 (3)		58,040		67,866
Notes, 3.950%, due 2028		500,000		500,000
Notes, 2.700%, due 2030		500,000		500,000
Notes, 3.125%, due 2032		550,000		550,000
Notes, 6.400%, due 2037		543,331		543,331
Notes, 5.200%, due 2043		338,133		338,133
Notes, 4.400%, due 2048		329,219		329,219
Notes, 3.850%, due 2052		550,000		550,000
Notes, 2.979%, due 2055		439,312		439,312
Finance lease obligations		188,889		188,386
Total long-term debt and finance lease obligations		6,926,154		6,855,477
Less premium on debt exchange		171,162		169,737
Less debt issuance costs		32,017		43,471
Total amounts outstanding		6,722,975		6,642,269
Less current maturities of long-term debt (2) (3)		60,000		10,000
Less current portion of finance lease obligations		14,102		18,582
Total long-term debt and finance lease obligations due after    one year	$	6,648,873	$	6,613,687

(1)The industrial revenue bonds had variable rates ranging from 4.20% to 5.10% at December 31, 2023 and 3.65% to 4.28% at December 31, 2022.

(2)The NJSM notes relate to borrowings of NJSM under its General Financing Agreement and Promissory Note (the “NJSM Facility”). The maximum amount NJSM could borrow under the NJSM facility was $80.0 million at December 31, 2023. The NJSM facility is uncommitted. Borrowings under the NJSM facility had variable rates ranging from 2.46% to 6.78% at December 31, 2023.

(3)The term notes were assumed in conjunction with the acquisition of 51% ownership of CSI on February 1, 2022. The original principal amount of the notes was $101.0 million, with a fixed rate of 2.95% until September 30, 2026 when they will convert to a floating rate. Payments of $2.5 million are due quarterly along with accrued interest. The term notes mature on March 31, 2027. (See Note 25.)

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Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2023

Fair Values of Derivative Financial Instruments

The following tables summarize information regarding Nucor’s derivative financial instruments (in thousands):

		Fair Value at
		December 31,
Fair Value of Derivative Financial    Instruments	Consolidated Balance Sheet Location	2023			2022
Asset derivatives designated    as hedging instruments:
Commodity contracts	Other current assets	$	—		$	17,200
Commodity contracts	Other assets		—			17,200
Total asset derivatives		$	—		$	34,400
Liability derivatives designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities	$	(14,700	)	$	—
Commodity contracts	Deferred credits and other liabilities		(3,600	)		—
Total liability derivatives    designated as hedging    instruments			(18,300	)		—
Liability derivatives not designated    as hedging instruments:
Commodity contracts	Accrued expenses and other current liabilities		(4,382	)		(501	)
Foreign exchange contracts	Accrued expenses and other current liabilities		(529	)		(869	)
Total liability derivatives not    designated as hedging    instruments			(4,911	)		(1,370	)
Total liability derivatives		$	(23,211	)	$	(1,370	)

Derivatives Designated as Hedging Instrument [Member]

Effect of Derivatives Financial Instruments on Consolidated Statements of Earnings

The Effect of Derivative Financial Instruments on the Consolidated Statements of Earnings

Derivatives Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
									Amount of Gain or
									(Loss), Net of Tax,
		Amount of Gain or (Loss),							Reclassified from							Amount of Gain or (Loss),
	Statement of	Net of Tax, Recognized							Accumulated OCI into							Net of Tax, Recognized
Derivatives in Cash Flow	Earnings	in OCI on Derivatives							Earnings on Derivatives							in Earnings on Derivatives
Hedging Relationships	Location	(Effective Portion)							(Effective Portion)							(Ineffective Portion)
		2023			2022		2021		2023			2022		2021		2023		2022		2021
Commodity contracts	Cost of products sold	$	(52,077	)	$	76,542	$	15,112	$	(12,077	)	$	51,554	$	9,300	$	—	$	—	$	—

Derivatives Not Designated as Hedging Instrument [Member]

Effect of Derivatives Financial Instruments on Consolidated Statements of Earnings

Derivatives Not Designated as Hedging Instruments for the Year Ended December 31, (in thousands)
		Amount of Gain or (Loss)
Derivatives Not Designated	Statement of Earnings	Recognized in Earnings on
as Hedging Instruments	Location	Derivatives
		2023			2022		2021
Commodity contracts	Cost of products sold	$	3,300		$	3,311	$	(27,777	)
Foreign exchange contracts	Cost of products sold		(856	)		11,641		8,114
Total		$	2,444		$	14,952	$	(19,663	)

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2023

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 liabilities that are measured at fair value. Nucor does not have any non-financial assets or liabilities that are measured at fair value on a recurring basis.

				(in thousands)
				Fair Value Measurements at Reporting Date Using
				Quoted Prices
				in Active		Significant
	Carrying			Markets for		Other			Significant
	Amount in			Identical		Observable			Unobservable
	Consolidated			Assets		Inputs			Inputs
Description	Balance Sheets			(Level 1)		(Level 2)			(Level 3)
As of December 31, 2023
Assets:
Cash equivalents	$	5,724,549		$	5,724,549	$	—		$	—
Short-term investments		747,479			747,479		—			—
Derivative contracts		—			—		—			—
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	)	$	—
As of December 31, 2022
Assets:
Cash equivalents	$	3,182,631		$	3,182,631	$	—		$	—
Short-term investments		576,946			576,946		—			—
Derivative contracts		34,400			—		34,400			—
Restricted cash and cash    equivalents		80,368			80,368		—			—
Total assets	$	3,874,345		$	3,839,945	$	34,400		$	—
Liabilities:
Derivative contracts	$	(1,370	)	$	—	$	(1,370	)	$	—

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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
				Exercise					Exercise					Exercise
	Shares			Price		Shares			Price		Shares			Price
Number of shares under stock options:
Outstanding at beginning of year		837		$	66.76		1,186		$	55.58		3,916		$	50.03
Granted		91		$	133.03		98		$	130.71		138		$	110.74
Exercised		(210	)	$	55.85		(447	)	$	51.14		(2,868	)	$	50.65
Canceled		—		$	—		—		$	—		—		$	—
Outstanding at end of year		718		$	78.33		837		$	66.76		1,186		$	55.58
Stock options exercisable at end of year		433		$	48.33		313		$	59.60		523		$	54.71

Summary of Stock Options Outstanding

The following table summarizes information about stock options outstanding at December 31, 2023 (shares in thousands):

	Options Outstanding					Options Exercisable
			Weighted-
			Average	Weighted-				Weighted-
Range of	Number		Remaining Contractual	Average Exercise		Number		Average Exercise
Exercise Prices	Outstanding		Life	Price		Exercisable		Price
$40.00 - $60.00		379	6.3 years	$	43.06		379	$	43.06
$60.01 - $75.00		33	4.4 years	$	65.80		33	$	65.80
$75.01 - $100.00		—	0.0 years	$	—		—	$	—
$100.01 - $120.00		122	7.4 years	$	110.74		15	$	110.74
$120.01 - $133.03		184	8.9 years	$	131.86		6	$	130.71
$40.00 - $133.03		718	7.1 years	$	78.33		433	$	48.33

Schedule of Grant Date Fair Value Black-Scholes Options-Pricing Model Assumptions

The fair value was estimated using the Black-Scholes options pricing model with the following assumptions:

	2023			2022			2021
Exercise price	$	133.03		$	130.71		$	110.74
Expected dividend yield		1.53	%		1.53	%		1.46	%
Expected stock price volatility		37.55	%		35.77	%		32.86	%
Risk-free interest rate		3.66	%		2.98	%		1.28	%
Expected life (years)		6.5			6.5			6.5

Summary of Nucor's RSU Activity

A summary of Nucor’s RSU activity is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units:
Unvested at beginning of year		1,003		$	98.66		1,167		$	60.45		1,830		$	47.33
Granted		831		$	133.03		774		$	130.71		397		$	110.74
Vested		(873	)	$	102.79		(916	)	$	77.21		(997	)	$	57.09
Canceled		(14	)	$	106.76		(22	)	$	93.73		(63	)	$	49.54
Unvested at end of year		947		$	124.89		1,003		$	98.66		1,167		$	60.45

Summary of Nucor's Restricted Stock Activity under AIP and LTIP

A summary of Nucor’s restricted stock activity under the AIP and the LTIP is as follows (shares in thousands):

	Year Ended December 31,
	2023					2022					2021
				Grant Date					Grant Date					Grant Date
	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units and restricted    stock awards:
Unvested at beginning of year		209		$	108.55		107		$	57.17		127		$	49.94
Granted		414		$	171.38		465		$	128.62		262		$	65.61
Vested		(406	)	$	152.68		(356	)	$	119.29		(273	)	$	62.17
Canceled		(7	)	$	154.05		(7	)	$	113.86		(9	)	$	48.75
Unvested at end of year		210		$	145.55		209		$	108.55		107		$	57.17

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Interest (Income) Expense (Tables)

12 Months Ended

Dec. 31, 2023

Banking And Thrift Interest [Abstract]

Schedule of Components of Net Interest (Income) Expense

The components of net interest (income) expense are as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Interest expense	$	245,954		$	218,911		$	163,121
Interest income		(275,586	)		(48,695	)		(4,267	)
Interest expense, net	$	(29,632	)	$	170,216		$	158,854

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Components of Earnings Before Income Taxes and Noncontrolling Interests

Components of earnings before income taxes and noncontrolling interests are as follows (in thousands):

	Year Ended December 31,
	2023		2022		2021
United States	$	6,203,409	$	10,212,850	$	9,076,921
Foreign		69,348		31,994		123,937
	$	6,272,757	$	10,244,844	$	9,200,858

Provision for Income Taxes

The provision for income taxes consists of the following (in thousands):

	Year Ended December 31,
	2023			2022			2021
Current:
Federal	$	1,127,369		$	1,894,848		$	1,753,376
State		194,186			304,323			293,752
Foreign		16,992			12,882			19,695
Total current		1,338,547			2,212,053			2,066,823
Deferred:
Federal		20,621			77,961			10,916
State		(18,738	)		(120,440	)		(3,042	)
Foreign		19,536			(4,370	)		3,791
Total deferred		21,419			(46,849	)		11,665
Total provision for income taxes	$	1,359,966		$	2,165,204		$	2,078,488

Reconciliation of the Federal Statutory Tax Rate to Total Provisions

A reconciliation of the federal statutory tax rate (21%) to the total provision is as follows:

	Year Ended December 31,
	2023			2022			2021
Taxes computed at statutory rate		21.00	%		21.00	%		21.00	%
State income taxes, net of federal income tax benefit		2.14	%		1.41	%		2.49	%
Federal research credit		-0.51	%		-0.10	%		-0.07	%
Equity in losses of foreign joint venture		0.17	%		0.11	%		—
Foreign rate differential		0.10	%		—			-0.03	%
Noncontrolling interests		-1.27	%		-0.85	%		-0.67	%
Other, net		0.05	%		-0.44	%		-0.13	%
Provision for income taxes		21.68	%		21.13	%		22.59	%

Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities resulted from the following (in thousands):

	December 31,
	2023			2022
Deferred tax assets:
Accrued liabilities and reserves	$	252,794		$	236,132
Allowance for doubtful accounts		39,102			55,160
Inventory		141,460			143,384
Research and development expenditures		133,935			42,109
Post-retirement benefits		8,571			7,997
Hedges		5,146			—
Net operating loss carryforward		93,794			30,295
Tax credit carryforwards		215,630			162,498
Other deferred tax assets		12,016			10,894
Valuation allowance		(210,084	)		(77,510	)
Total deferred tax assets		692,364			610,959
Deferred tax liabilities:
Holdbacks and amounts not due under contracts		(15,714	)		(16,016	)
Hedges		—			(7,426	)
Intangibles		(706,174	)		(724,450	)
Property, plant and equipment		(1,170,080	)		(1,050,579	)
Other deferred tax liabilities		(48,579	)		(51,726	)
Book/Tax differences on debt modifications		(43,869	)		(45,458	)
Total deferred tax liabilities		(1,984,416	)		(1,895,655	)
Total net deferred tax liabilities	$	(1,292,052	)	$	(1,284,696	)

Reconciliation of the Beginning and Ending Amounts of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amounts of unrecognized tax benefits recorded in deferred credits and other liabilities in the consolidated balance sheets is as follows (in thousands):

	December 31,
	2023			2022			2021
Balance at beginning of year	$	141,692		$	95,136		$	47,965
Additions based on tax positions related to current year		44,113			54,438			52,853
Reductions based on tax positions related to    current year		—			—			—
Additions based on tax positions related to prior years		9,886			13,473			2,405
Reductions based on tax positions related to    prior years		(496	)		(9,275	)		(3,060	)
Reductions due to settlements with taxing authorities		—			—			—
Reductions due to statute of limitations lapse		(6,941	)		(12,080	)		(5,027	)
Balance at end of year	$	188,254		$	141,692		$	95,136

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Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

The following tables reflect the changes in accumulated other comprehensive income (loss) by component (in thousands):

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan			Total
December 31, 2022	$	26,100		$	(180,216	)	$	16,599		$	(137,517	)
Other comprehensive income    (loss) before reclassifications		(52,077	)		21,041			(4,787	)		(35,823	)
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (1)		12,077			—			(809	)		11,268
Net current-period other    comprehensive income (loss)		(40,000	)		21,041			(5,596	)		(24,555	)
December 31, 2023	$	(13,900	)	$	(159,175	)	$	11,003		$	(162,072	)

(1)Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

	Gains and (Losses) on			Foreign Currency			Adjustment to Early
	Hedging Derivatives			Gains (Losses)			Retiree Medical Plan		Total
December 31, 2021	$	1,112		$	(124,868	)	$	8,474	$	(115,282	)
Other comprehensive income    (loss) before reclassifications		76,542			(55,348	)		6,328		27,522
Amounts reclassified from    accumulated other    comprehensive income    (loss) into earnings (2)		(51,554	)		—			1,797		(49,757	)
Net current-period other    comprehensive income (loss)		24,988			(55,348	)		8,125		(22,235	)
December 31, 2022	$	26,100		$	(180,216	)	$	16,599	$	(137,517	)

Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Computations of Basic and Diluted Net Earnings Per Share

The computations of basic and diluted net earnings per share are as follows (in thousands, except per share data):

Year Ended December 31,	2023			2022			2021
Basic net earnings per share:
Basic net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,946	)		(31,172	)		(32,311	)
Net earnings available to common stockholders	$	4,507,855		$	7,576,165		$	6,795,150
Basic average shares outstanding		249,773			262,348			292,491
Basic net earnings per share	$	18.05		$	28.88		$	23.23
Diluted net earnings per share:
Diluted net earnings	$	4,524,801		$	7,607,337		$	6,827,461
Earnings allocated to participating securities		(16,897	)		(31,057	)		(32,190	)
Net earnings available to common stockholders	$	4,507,904		$	7,576,280		$	6,795,271
Diluted average shares outstanding:
Basic average shares outstanding		249,773			262,348			292,491
Dilutive effect of stock options and other		639			828			899
		250,412			263,176			293,390
Diluted net earnings per share	$	18.00		$	28.79		$	23.16

Anti-dilutive Stock Options

The following stock options were excluded from the computation of diluted net earnings per share because their effect would have been anti-dilutive (shares in thousands):

Year Ended December 31,	2023		2022		2021
Anti-dilutive stock options:
Weighted-average shares		-		25		145
Weighted-average exercise price	$	-	$	130.71	$	91.06

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Segments (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Segments

Nucor’s results by segment were as follows (in thousands):

	Year Ended December 31,
	2023			2022			2021
Net sales to external customers:
Steel mills	$	20,092,662		$	24,189,858		$	24,145,396
Steel products		12,758,939			15,060,328			9,727,943
Raw materials		1,861,900			2,262,281			2,610,600
	$	34,713,501		$	41,512,467		$	36,483,939
Intercompany sales:
Steel mills	$	4,812,479		$	5,859,367		$	6,297,688
Steel products		455,816			547,219			360,063
Raw materials		12,363,577			13,715,176			15,762,685
Corporate/eliminations		(17,631,872	)		(20,121,762	)		(22,420,436	)
	$	—		$	—		$	—
Depreciation expense:
Steel mills	$	610,510		$	529,005		$	465,733
Steel products		131,189			115,501			99,248
Raw materials		173,657			171,060			159,886
Corporate		15,229			11,126			10,539
	$	930,585		$	826,692		$	735,406
Amortization expense:
Steel mills	$	7,829		$	7,829		$	7,829
Steel products		202,129			199,379			93,160
Raw materials		27,772			27,734			28,168
	$	237,730		$	234,942		$	129,157
Earnings before income taxes and noncontrolling    interests:
Steel mills	$	3,712,470		$	7,199,087		$	9,735,020
Steel products		3,443,950			4,093,105			1,291,450
Raw materials		253,506			496,823			549,956
Corporate/eliminations		(1,137,169	)		(1,544,171	)		(2,375,568	)
	$	6,272,757		$	10,244,844		$	9,200,858
Segment assets:
Steel mills	$	15,407,266		$	14,157,229		$	13,235,463
Steel products		10,914,870			12,087,145			7,845,010
Raw materials		3,546,759			3,383,114			3,870,806
Corporate/eliminations		5,471,604			2,851,722			871,793
	$	35,340,499		$	32,479,210		$	25,823,072
Capital expenditures:
Steel mills	$	1,440,478		$	1,453,277		$	1,336,276
Steel products		367,170			267,128			187,152
Raw materials		352,642			181,680			128,765
Corporate		54,920			50,380			48,171
	$	2,215,210		$	1,952,465		$	1,700,364

Schedule of Net Sale by Product to External Customers

Net sales by product were as follows (in thousands). Further product group breakdown is impracticable.

	Year Ended December 31,
	2023		2022		2021
Net sales to external customers:
Sheet	$	9,146,676	$	11,437,799	$	12,675,679
Bar		5,993,751		7,031,798		6,039,187
Structural		2,429,211		2,928,072		2,597,768
Plate		2,523,024		2,792,188		2,832,762
Tubular Products		1,588,211		1,944,532		2,194,732
Rebar Fabrication		2,181,929		2,205,960		1,794,658
Joist		2,211,965		2,958,235		1,351,235
Deck		1,712,474		2,392,438		1,167,162
Other Steel Products		5,064,360		5,559,164		3,220,155
Raw Materials		1,861,900		2,262,281		2,610,601
	$	34,713,501	$	41,512,467	$	36,483,939

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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2023

C.H.I. Overhead Doors [Member]

Summary of Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed of C.H.I. as of June 24, 2022, the date of acquisition (in thousands):

Cash	$	159,066
Accounts receivable		77,530
Inventory		52,515
Other current assets		18,177
Property, plant and equipment		117,392
Goodwill		1,033,192
Other intangible assets		2,389,180
Other assets		9,559
Total assets acquired		3,856,611
Current liabilities		75,146
Deferred income taxes		578,019
Other liabilities		7,509
Total liabilities assumed		660,674
Net assets acquired	$	3,195,937

Summary of Purchase Price Allocation to Identifiable Intangible Assets

The following table summarizes the purchase price allocation to the identifiable intangible assets of C.H.I. as of June 24, 2022, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	2,242,000	25 years
Trademarks and trade names		147,000	13 years
Backlog		180	1 year
	$	2,389,180

CSI [Member]

Summary of Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of 100% of the assets and liabilities of CSI, as well as the fair value of the 49% noncontrolling interest not acquired by Nucor, as of February 1, 2022, the date Nucor acquired its 51% controlling ownership position (in thousands):

Cash	$	98,537
Accounts receivable		159,257
Inventory		354,614
Other current assets		5,298
Property, plant and equipment		566,714
Goodwill		62,011
Other intangible assets		—
Other assets		7,071
Total assets acquired		1,253,502
Current portion of long-term debt		9,826
Other current liabilities		162,808
Long-term debt due after one year		67,866
Other liabilities		139,947
Total liabilities assumed		380,447
Net assets acquired at 100%		873,055
Less: Fair value of noncontrolling interest		427,797
Net assets acquired at 51%	$	445,258

Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member]

Summary of Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed of the IMP business as of August 9, 2021, the date of acquisition (in thousands):

Cash	$	—
Accounts receivable		47,037
Inventory		73,000
Other current assets		4,478
Property, plant and equipment		102,966
Goodwill		480,167
Other intangible assets		364,000
Other assets		13,515
Total assets acquired		1,085,163
Current liabilities		46,620
Other liabilities		12,855
Total liabilities assumed		59,475
Net assets acquired	$	1,025,688

Summary of Purchase Price Allocation to Identifiable Intangible Assets

The following table summarizes the purchase price allocation to the identifiable intangible assets of the IMP business as of August 9, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	309,000	10 years
Trademarks and trade name		45,000	10 years
Backlog		10,000	1 year
	$	364,000

Hannibal Industries Inc [Member]

Summary of Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the fair values of the assets acquired and liabilities assumed of Hannibal as of August 20, 2021, the date of acquisition (in thousands):

Cash	$	124,655
Accounts receivable		115,728
Inventory		65,005
Other current assets		2,113
Property, plant and equipment		116,955
Goodwill		84,922
Other intangible assets		201,700
Other assets		8,776
Total assets acquired		719,854
Current liabilities		228,750
Finance lease obligations		80,124
Other liabilities		13,155
Total liabilities assumed		322,029
Net assets acquired	$	397,825

Summary of Purchase Price Allocation to Identifiable Intangible Assets

The following table summarizes the purchase price allocation to the identifiable intangible assets of Hannibal as of August 20, 2021, the date of acquisition (in thousands, except years):

			Weighted-
			Average Life
Customer relationships	$	144,000	10 years
Trademarks and trade name		26,000	7 years
Backlog		31,700	1 year
	$	201,700

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Quarterly Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2023

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Information

	(in thousands, except per share data)
	Year Ended December 31, 2023
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	8,709,980	$	9,523,256	$	8,775,734	$	7,704,531
Gross margin		1,998,202		2,501,674		1,920,800		1,393,718
Net earnings before noncontrolling interests		1,231,629		1,587,075		1,221,255		872,832
Net earnings attributable to Nucor    stockholders		1,136,542		1,461,354		1,141,506		785,399
Net earnings per share:
Basic	$	4.47	$	5.82	$	4.58	$	3.17
Diluted	$	4.45	$	5.81	$	4.57	$	3.16

	(in thousands, except per share data)
	Year Ended December 31, 2022
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Net sales	$	10,493,282	$	11,794,474	$	10,500,755	$	8,723,956
Gross margin		3,458,139		4,104,263		2,843,391		2,097,487
Net earnings before noncontrolling interests (1)		2,227,115		2,727,237		1,799,043		1,326,245
Net earnings attributable to Nucor    stockholders (1)		2,095,623		2,561,233		1,694,748		1,255,733
Net earnings per share:
Basic	$	7.69	$	9.69	$	6.51	$	4.90
Diluted	$	7.67	$	9.67	$	6.50	$	4.89

(1)Fourth quarter of 2022 results include an after-tax net benefit of $60.4 million related to state tax credits, an after-tax net benefit of $88.0 million related to a change in the valuation allowance of a state deferred tax asset, and a pre-tax $96.0 million write-off of the remaining carrying value of our leasehold interest in unproved oil and gas properties. This charge is included in the raw materials segment.

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Nature of Operations and Basis of Presentation - Additional Information (Detail)	Dec. 31, 2023	Oct. 27, 2023	Oct. 26, 2023
Nucor-Yamato Steel Company [Member]
Summary Of Organization And Operations [Line Items]
Noncontrolling interest, ownership percentage by parent	51.00%
CSI [Member]
Summary Of Organization And Operations [Line Items]
Noncontrolling interest, ownership percentage by parent	51.00%
NJSM [Member]
Summary Of Organization And Operations [Line Items]
Noncontrolling interest, ownership percentage by parent	51.00%	51.00%	50.00%

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Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Cash equivalents original maturity period	three months or less

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Short-term Investments - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Short Term Investments [Abstract]
Short-term investments held	$ 747,479,000	$ 576,946,000
Realized or unrealized gains or losses	$ 0	$ 0	$ 0

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Accounts Receivable - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable Net [Abstract]
Allowance for doubtful accounts receivable	$ 127.2	$ 200.2	$ 95.4

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Inventories - Additional Information (Detail)	Dec. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials and supplies in inventory, percentage	37.00%	37.00%
Finished and semi-finished products in inventory, percentage	63.00%	63.00%

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Leases - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2023
Disclosure of Leases [Line Items]
Operating lease, renewal term	can extend the lease term from one to five years or sometimes
Weighted-average discount rate - finance leases	11.70%
Minimum [Member]
Disclosure of Leases [Line Items]
Operating lease, renewal period	1 year
Maximum [Member]
Disclosure of Leases [Line Items]
Operating lease, renewal period	5 years

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Leases - Quantitative data related to our leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of Leases [Line Items]
Operating lease cost	$ 29,949	$ 26,905	$ 24,492
Finance lease cost:
Total finance lease cost	31,135	31,342	24,183
Total lease cost	61,084	58,247	48,675
Cash paid for amounts included in measurement of lease liabilities:
Operating cash flows from operating leases	30,230	26,518	27,310
Operating cash flows from finance leases	11,964	12,229	10,670
Financing cash flows from finance leases	16,840	16,008	11,425
Additions to right-of-use assets obtained from
Operating lease liabilities	26,955	33,924	19,711
Finance lease liabilities	16,473	27,030	99,535
Assets:
Operating lease assets	$ 102,878	$ 101,499
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Finance lease assets	$ 166,780	$ 169,076
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net	Property, plant and equipment, net
Total leased assets	$ 269,658	$ 270,575
Liabilities
Current operating	$ 25,405	$ 23,621
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities
Current finance	$ 14,102	$ 18,582
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of long-term debt and finance lease obligations	Current portion of long-term debt and finance lease obligations
Non-current operating	$ 81,673	$ 81,455
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Deferred credits and other liabilities	Deferred credits and other liabilities
Non-current finance	$ 174,787	$ 169,804
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt and finance lease obligations due after one year	Long-term debt and finance lease obligations due after one year
Total leased liabilities	$ 295,967	$ 293,462
Weighted-average remaining lease term - operating leases	7 years 8 months 12 days
Weighted-average remaining lease term - finance leases	14 years 3 months 18 days
Weighted-average discount rate - operating leases	4.00%
Weighted-average discount rate - finance leases	11.70%
Maturity Of Lease Liabilities [Abstract]
2024	$ 29,014
2025	22,032
2026	18,240
2027	13,569
2028	11,334
Thereafter	33,717
Total lease payments	127,906
Less imputed interest	(20,828)
Present value of lease liabilities	107,078
2024	24,890
2025	22,391
2026	20,456
2027	19,860
2028	20,059
Thereafter	160,729
Total lease payments	268,385
Less imputed interest	(79,496)
Present value of lease liabilities	188,889	188,386
Cost of Products Sold
Disclosure of Leases [Line Items]
Operating lease cost	26,750	23,666	21,503
Finance lease cost:
Amortization of leased assets	19,171	19,113	13,513
Marketing, Administrative and Other Expenses
Disclosure of Leases [Line Items]
Operating lease cost	3,199	3,239	2,989
Interest Expense, Net
Finance lease cost:
Interest on lease liabilities	$ 11,964	$ 12,229	$ 10,670

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Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 22,838,749	$ 20,732,047
Less accumulated depreciation	(11,788,982)	(11,115,127)
Property, plant and equipment, net, total	11,049,767	9,616,920
Land and Improvements, Net [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,183,173	905,598
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,550,959	2,230,672
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	16,328,126	15,125,653
Proved Oil and Gas Properties [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	558,703	558,486
Leasehold Interest in Unproved Oil and Gas Properties [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	96,000	96,000
Property, plant and equipment, net, total		0	$ 96,000
Construction in Process and Equipment Deposits [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,121,788	$ 1,815,638

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Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Non-cash impairment charge			$ 101,756	$ 62,161
Property, plant and equipment, net	$ 9,616,920	$ 11,049,767	9,616,920
Government financial assistance			275,000
Land and Improvements, Net [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		5 years
Land and Improvements, Net [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		25 years
Buildings and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		4 years
Buildings and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		2 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives range		15 years
Leasehold Interest in Unproved Oil and Gas Properties [Member]
Property, Plant and Equipment [Line Items]
Non-cash impairment charge	96,000			42,000
Property, plant and equipment, net	$ 0		0	$ 96,000
Construction in Process and Equipment Deposits [Member]
Property, Plant and Equipment [Line Items]
Amount of qualifying expenditures included as contra asset in CIP		$ 95,300	$ 179,700

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Goodwill and Other Intangible Assets - Schedule of Change in Net Carrying Amount of Goodwill by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Line Items]
Balance, beginning of period	$ 3,920,060	$ 2,827,344
Acquisitions	42,540	1,149,917
Divestitures		(39,466)
Translation	6,247	(17,735)
Balance, end of period	3,968,847	3,920,060
Steel Mills [Member]
Goodwill [Line Items]
Balance, beginning of period	675,186	613,175
Acquisitions		62,011
Balance, end of period	675,186	675,186
Steel Products [Member]
Goodwill [Line Items]
Balance, beginning of period	2,510,045	1,439,874
Acquisitions	(2,120)	1,087,906
Translation	6,247	(17,735)
Balance, end of period	2,514,172	2,510,045
Raw Materials [Member]
Goodwill [Line Items]
Balance, beginning of period	734,829	774,295
Acquisitions	44,660
Divestitures		(39,466)
Balance, end of period	$ 779,489	$ 734,829

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Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible asset amortization expense	$ 237,700,000	$ 234,900,000	$ 129,200,000
Future amortization expense, in 2024	235,100,000
Future amortization expense, in 2025	234,100,000
Future amortization expense, in 2026	231,100,000
Future amortization expense, in 2027	227,900,000
Future amortization expense, in 2028	204,600,000
Impairment of goodwill	0	0	0
Goodwill	3,968,847,000	3,920,060,000	$ 2,827,344,000
Finite-lived intangible assets	$ 3,108,015,000	$ 3,322,265,000
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

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Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	$ 4,672,056	$ 4,648,576
Intangible assets, Accumulated Amortization	1,564,041	1,326,311
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	4,190,156	4,174,724
Intangible assets, Accumulated Amortization	1,295,778	1,087,834
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	372,153	364,106
Intangible assets, Accumulated Amortization	168,363	142,363
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Gross Amount	109,747	109,746
Intangible assets, Accumulated Amortization	$ 99,900	$ 96,114

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Equity Investments - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Facility	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 27, 2023	Oct. 26, 2023
Schedule Of Equity Method Investments [Line Items]
Equity method investments	$ 479.5	$ 562.3
Nucor JFE Steel Mexico [Member]
Schedule Of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage by parent	51.00%			51.00%	50.00%
Additional equity investment interest percent purchased	1.00%			1.00%
NuMit LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investments	$ 431.9	423.9
Distributions from affiliates	$ 32.9	55.6	$ 0.2
Steel Technologies LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	100.00%
Number of sheet processing facilities operated by Steel Technologies | Facility	32
Nucor-JFE Steel Mexico [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Equity method investments		$ 91.8

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Current Liabilities - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Liabilities Current [Abstract]
Book overdrafts	$ 159.0	$ 163.6
Dividends payable, current	$ 133.6	$ 130.5

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Debt and Other Financing Arrangements - Schedule of Debt and Other Financing Arrangements (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	May 23, 2022	Mar. 11, 2022
Debt Instrument [Line Items]
Finance lease obligations	$ 188,889	$ 188,386
Total long-term debt and finance lease obligations	6,926,154	6,855,477
Less premium on debt exchange	171,162	169,737
Less debt issuance costs	32,017	43,471	$ 5,900	$ 15,300
Total amounts outstanding	6,722,975	6,642,269
Less current maturities of long-term debt	60,000	10,000
Less current portion of finance lease obligations	14,102	18,582
Total long-term debt and finance lease obligations due after one year	6,648,873	6,613,687
Notes, 2.000%, due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	500,000	500,000
Notes, 3.950%, due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	500,000	500,000	500,000
Notes, 4.300%, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	500,000	500,000	$ 500,000
Term Notes, 2.950%, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	58,040	67,866
Notes, 3.950%, due 2028 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	500,000	500,000
Notes, 2.700%, due 2030 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	500,000	500,000
Notes, 3.125%, due 2032 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	550,000	550,000		550,000
Notes, 6.400%, due 2037 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	543,331	543,331
Notes, 5.200%, due 2043 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	338,133	338,133
Notes, 4.400%, due 2048 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	329,219	329,219
Notes, 3.850%, due 2052 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	550,000	550,000		$ 550,000
Notes, 2.979%, due 2055 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	439,312	439,312
Industrial Revenue Bonds [Member] | Due from 2025 to 2061 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	1,349,230	$ 1,349,230
NUE NJSM Notes [Member] | NJSM notes due from 2024 to 2026 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 80,000

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Debt and Other Financing Arrangements - Schedule of Debt and Other Financing Arrangements (Parenthetical) (Detail) - USD ($)				12 Months Ended
	May 23, 2022	Mar. 11, 2022	Feb. 01, 2022	Dec. 31, 2023	Dec. 31, 2022
CSI [Member]
Debt Instrument [Line Items]
Acquired controlling ownership percentage			51.00%
Due from 2025 to 2061 [Member] | Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Debt instrument - maturity year - start				2025
Debt instrument - maturity year - end				2061
Principal amount of notes				$ 1,349,230,000	$ 1,349,230,000
Due from 2025 to 2061 [Member] | Industrial Revenue Bonds [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				4.20%	3.65%
Due from 2025 to 2061 [Member] | Industrial Revenue Bonds [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				5.10%	4.28%
NJSM notes due from 2024 to 2026 [Member] | NUE NJSM Notes [Member]
Debt Instrument [Line Items]
Debt instrument - maturity year - start				2024
Debt instrument - maturity year - end				2026
Line of credit facility maximum borrowing capacity				$ 80,000,000
Principal amount of notes				$ 80,000,000
NJSM notes due from 2024 to 2026 [Member] | NUE NJSM Notes [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				2.46%
NJSM notes due from 2024 to 2026 [Member] | NUE NJSM Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				6.78%
Notes, 2.000%, due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				2.00%
Debt instrument - maturity year				2025
Principal amount of notes				$ 500,000,000	$ 500,000,000
Notes, 3.950%, due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.95%			3.95%
Debt instrument - maturity year	2025			2025
Principal amount of notes	$ 500,000,000			$ 500,000,000	500,000,000
Notes, 4.300%, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	4.30%			4.30%
Debt instrument - maturity year	2027			2027
Principal amount of notes	$ 500,000,000			$ 500,000,000	500,000,000
Term Notes, 2.950%, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				2.95%
Debt instrument - maturity year				2027
Principal amount of notes				$ 58,040,000	67,866,000
Term Notes, 2.950%, due 2027 [Member] | CSI [Member]
Debt Instrument [Line Items]
Debt instrument interest rate			2.95%
Acquired controlling ownership percentage			51.00%
Principal amount of notes			$ 101,000,000
Payments due quarterly			$ 2,500,000
Maturity period			Mar. 31, 2027
Notes, 3.950%, due 2028 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				3.95%
Debt instrument - maturity year				2028
Principal amount of notes				$ 500,000,000	500,000,000
Notes, 2.700%, due 2030 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				2.70%
Debt instrument - maturity year				2030
Principal amount of notes				$ 500,000,000	500,000,000
Notes, 3.125%, due 2032 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate		3.125%		3.125%
Debt instrument - maturity year		2032		2032
Principal amount of notes		$ 550,000,000		$ 550,000,000	550,000,000
Notes, 6.400%, due 2037 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				6.40%
Debt instrument - maturity year				2037
Principal amount of notes				$ 543,331,000	543,331,000
Notes, 5.200%, due 2043 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				5.20%
Debt instrument - maturity year				2043
Principal amount of notes				$ 338,133,000	338,133,000
Notes, 4.400%, due 2048 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				4.40%
Debt instrument - maturity year				2048
Principal amount of notes				$ 329,219,000	329,219,000
Notes, 3.850%, due 2052 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate		3.85%		3.85%
Debt instrument - maturity year		2052		2052
Principal amount of notes		$ 550,000,000		$ 550,000,000	550,000,000
Notes, 2.979%, due 2055 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate				2.979%
Debt instrument - maturity year				2055
Principal amount of notes				$ 439,312,000	$ 439,312,000

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Debt and Other Financing Arrangements - Additional Information (Detail) - USD ($)					12 Months Ended
	Aug. 15, 2022	May 23, 2022	Apr. 25, 2022	Mar. 11, 2022	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Annual aggregate long-term debt maturities - 2024					$ 60,000,000
Annual aggregate long-term debt maturities - 2025					1,010,000,000.00
Annual aggregate long-term debt maturities - 2026					61,500,000
Annual aggregate long-term debt maturities - 2027					528,000,000
Annual aggregate long-term debt maturities - 2028					549,500,000
Annual aggregate long-term debt maturities - thereafter					4,530,000,000
Net proceeds of debt issuance and sale of notes after expenses and the underwriting discount		$ 991,900,000		$ 1,090,000,000.00
Debt issuance and sale costs of Notes		5,900,000		15,300,000	32,017,000	$ 43,471,000
Redemption amount					10,000,000	1,111,000,000
Short-term borrowings					119,211,000	49,081,000
Letters of credit outstanding					57,700,000	43,500,000
Harris Steel [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					18,700,000
Line of credit					0	0
Nucor Trading S.A. [Member]
Debt Instrument [Line Items]
Short-term borrowings					24,200,000	49,100,000
NJSM [Member]
Debt Instrument [Line Items]
Short-term borrowings					95,000,000
Notes, 3.125%, due 2032 [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 550,000,000	$ 550,000,000	550,000,000
Debt instrument interest rate				3.125%	3.125%
Debt instrument - maturity year				2032	2032
Notes, 3.850%, due 2052 [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 550,000,000	$ 550,000,000	550,000,000
Debt instrument interest rate				3.85%	3.85%
Debt instrument - maturity year				2052	2052
Notes, 4.125%, due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 600,000,000
Debt instrument interest rate				4.125%
Debt instrument - maturity year				2022
Redemption amount	$ 600,000,000
Notes, 4.000%, due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument face amount				$ 500,000,000
Debt instrument interest rate				4.00%
Debt instrument - maturity year				2023
Redemption amount			$ 500,000,000
Notes, 3.950%, due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument face amount		$ 500,000,000			$ 500,000,000	500,000,000
Debt instrument interest rate		3.95%			3.95%
Debt instrument - maturity year		2025			2025
Notes, 4.300%, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument face amount		$ 500,000,000			$ 500,000,000	500,000,000
Debt instrument interest rate		4.30%			4.30%
Debt instrument - maturity year		2027			2027
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					$ 1,750,000,000
Line of revolving credit facility expiration date					Nov. 05, 2026
Ratio on the limit of funded debt to capital on credit facility					60.00%
Line of credit					$ 0	$ 0
Ratio funded debt to total capital					24.00%
Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					$ 100,000,000
Additional Commitments at Nucor's Election in Accordance with Terms of Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility availability					500,000,000
Revolving Loans For Nucor Subsidiaries [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility maximum borrowing capacity					$ 500,000,000

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Capital Stock - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 11, 2023
Capital Stock [Line Items]
The par value of common stock	$ 0.4
Common stock shares authorized	800,000,000	800,000,000
Preferred stock shares authorized	250,000
Preferred stock par value per share	$ 4
Preferred stock shares issued	0
Preferred stock shares outstanding	0
Dividends declared per share	$ 2.07	$ 2.01	$ 1.715
Repurchase of common stock	$ 1,553,933,000	$ 2,762,568,000	$ 3,276,088,000
Common Stock [Member]
Capital Stock [Line Items]
Share repurchase program, available repurchase amount	$ 3,320,000,000
Common Stock [Member] | Maximum [Member]
Capital Stock [Line Items]
Stock Repurchase Program, Authorized Amount				$ 4,000,000,000

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Derivative Financial Instruments - Fair Values of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	$ (23,211)	$ (1,370)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities Current	Accrued Liabilities Current
Derivatives Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value		$ 34,400
Derivative Liabilities, Fair Value	$ (18,300)
Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	(4,911)	(1,370)
Commodity Contracts [Member] | Derivatives Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value		17,200
Commodity Contracts [Member] | Derivatives Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets, Fair Value		17,200
Commodity Contracts [Member] | Derivatives Designated as Hedging Instrument [Member] | Accrued Expenses and Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	(14,700)
Commodity Contracts [Member] | Derivatives Designated as Hedging Instrument [Member] | Deferred Credits and Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	(3,600)
Commodity Contracts [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	$ (4,382)	$ (501)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities Current	Accrued Liabilities Current
Foreign Exchange Contracts [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Fair Value	$ (529)	$ (869)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities Current	Accrued Liabilities Current

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Derivative Financial Instruments - Effect of Derivatives Financial Instruments on Consolidated Statements of Earnings (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss), Net of Tax, Recognized in OCI on Derivatives (Effective Portion)	$ (52,077)	$ 76,542	$ 15,112
Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	2,444	14,952	(19,663)
Cost of Products Sold [Member] | Commodity Contracts [Member] | Derivatives Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss), Net of Tax, Recognized in OCI on Derivatives (Effective Portion)	(52,077)	76,542	15,112
Amount of Gain or (Loss), Net of Tax, Reclassified from Accumulated OCI into Earnings on Derivatives (Effective Portion)	(12,077)	51,554	9,300
Cost of Products Sold [Member] | Commodity Contracts [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	3,300	3,311	(27,777)
Cost of Products Sold [Member] | Foreign Exchange Contracts [Member] | Derivatives Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ (856)	$ 11,641	$ 8,114

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Derivative Financial Instruments - Additional Information (Detail) MMBTU in Millions	Dec. 31, 2023 MMBTU
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Notional amount of commodity derivatives	44.0

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Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	$ 747,479	$ 576,946
Derivative Asset, Statement of Financial Position [Extensible Enumeration]		Other Assets Current, Other Assets Noncurrent
Total assets	35,340,499	$ 32,479,210	$ 25,823,072
Derivative contracts, liabilities	$ (23,211)	$ (1,370)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities Current	Accrued Liabilities Current
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents	$ 5,724,549	$ 3,182,631
Short-term investments	747,479	576,946
Derivative contracts, assets		34,400
Restricted cash and cash equivalents	3,494	80,368
Other assets	47,020
Total assets	6,522,542	3,874,345
Derivative contracts, liabilities	(23,211)	(1,370)
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	5,724,549	3,182,631
Short-term investments	747,479	576,946
Restricted cash and cash equivalents	3,494	80,368
Other assets	4,245
Total assets	6,479,767	3,839,945
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		34,400
Total assets		34,400
Derivative contracts, liabilities	(23,211)	$ (1,370)
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
Total assets	$ 42,775

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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair value of short-term and long-term debt, including current maturities	$ 6,220	$ 5,930

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 14, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercise prices as percentage of the market value on the date of the grant	100.00%
Total intrinsic value of stock options exercised	$ 24.5	$ 32.2	$ 67.8
Total aggregate intrinsic value of stock options	68.7
Total aggregate intrinsic value of stock option exercisable	$ 54.5
Grant date fair value of stock options granted	$ 49.62	$ 45.27	$ 32.3
Compensation expenses for stock options	$ 4.7	$ 5.4	$ 3.8
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options vesting period	3 years
Stock options term, years	10 years
Unrecognized compensation expense related to stock	$ 2.0
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	1 year 10 months 24 days
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	$ 83.9
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	1 year 3 months 18 days
Compensation expense	$ 88.1	80.4	52.1
Total fair value of shares, vested	$ 120.7	120.0	109.5
Omnibus Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, common stock available for grant	4,300,000
Omnibus Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, common stock available for grant				19,000,000
LTIP [Member] | Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Eligible age of officer for restricted stock award	55 years
AIP [Member] | Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Eligible age of officer for restricted stock award	55 years
Additional common stock units for election of deferred annual incentive award, percentage	25.00%
AIP and LTIP [Member] | Restricted Stock Awards and Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to stock	$ 7.5
Weighted-average recognition period for unrecognized compensation expense related to stock (years)	1 year 7 months 6 days
Compensation expense	$ 37.8	51.0	79.9
Total fair value of shares, vested	$ 68.8	$ 45.9	$ 19.6
Inactive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance	100,000

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Stock-Based Compensation - Schedule of Stock Option Plans Activity (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding at beginning of year, Shares	837	1,186	3,916
Granted, Shares	91	98	138
Exercised, Shares	(210)	(447)	(2,868)
Outstanding at end of year, Shares	718	837	1,186
Stock options exercisable at end of year, Shares	433	313	523
Outstanding at beginning of year, Weighted - Average Exercise Price	$ 66.76	$ 55.58	$ 50.03
Granted, Weighted - Average Exercise Price	133.03	130.71	110.74
Exercised, Weighted - Average Exercise Price	55.85	51.14	50.65
Outstanding at end of period, Weighted - Average Exercise Price	78.33	66.76	55.58
Stock options exercisable at end of year, Weighted - Average Exercise Price	$ 48.33	$ 59.6	$ 54.71

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Stock-Based Compensation - Summary of Stock Options Outstanding (Detail) shares in Thousands	12 Months Ended
	Dec. 31, 2023 $ / shares shares
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Number Outstanding | shares	718
Options Outstanding, Weighted-Average Remaining Contractual Life	7 years 1 month 6 days
Options Outstanding, Weighted-Average Exercise Price	$ 78.33
Options Exercisable, Number Exercisable | shares	433
Options Exercisable, Weighted-Average Exercise Price	$ 48.33
Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	40
Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 133.03
$40.00 - $60.00 [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Number Outstanding | shares	379
Options Outstanding, Weighted-Average Remaining Contractual Life	6 years 3 months 18 days
Options Outstanding, Weighted-Average Exercise Price	$ 43.06
Options Exercisable, Number Exercisable | shares	379
Options Exercisable, Weighted-Average Exercise Price	$ 43.06
$40.00 - $60.00 [Member] | Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	40
$40.00 - $60.00 [Member] | Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 60
$60.01 - $75.00 [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Number Outstanding | shares	33
Options Outstanding, Weighted-Average Remaining Contractual Life	4 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 65.8
Options Exercisable, Number Exercisable | shares	33
Options Exercisable, Weighted-Average Exercise Price	$ 65.8
$60.01 - $75.00 [Member] | Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	60.01
$60.01 - $75.00 [Member] | Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 75
$75.01 - $100.00 [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Weighted-Average Remaining Contractual Life	0 years
$75.01 - $100.00 [Member] | Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 75.01
$75.01 - $100.00 [Member] | Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 100
$100.01 - $120.00 [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Number Outstanding | shares	122
Options Outstanding, Weighted-Average Remaining Contractual Life	7 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 110.74
Options Exercisable, Number Exercisable | shares	15
Options Exercisable, Weighted-Average Exercise Price	$ 110.74
$100.01 - $120.00 [Member] | Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	100.01
$100.01 - $120.00 [Member] | Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 120
$120.01 - $133.03 [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Options Outstanding, Number Outstanding | shares	184
Options Outstanding, Weighted-Average Remaining Contractual Life	8 years 10 months 24 days
Options Outstanding, Weighted-Average Exercise Price	$ 131.86
Options Exercisable, Number Exercisable | shares	6
Options Exercisable, Weighted-Average Exercise Price	$ 130.71
$120.01 - $133.03 [Member] | Minimum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	120.01
$120.01 - $133.03 [Member] | Maximum [Member]
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items]
Exercise Price	$ 133.03

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Stock-Based Compensation - Schedule of Grant Date Fair Value Black-Scholes Option-Pricing Model Assumptions (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Exercise price	$ 133.03	$ 130.71	$ 110.74
Expected dividend yield	1.53%	1.53%	1.46%
Expected stock price volatility	37.55%	35.77%	32.86%
Risk-free interest rate	3.66%	2.98%	1.28%
Expected life (years)	6 years 6 months	6 years 6 months	6 years 6 months

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Stock-Based Compensation - Summary of Nucor's RSU Activity (Detail) - Restricted Stock Units [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at beginning of year, Shares	1,003	1,167	1,830
Granted, Shares	831	774	397
Vested, Shares	(873)	(916)	(997)
Canceled, Shares	(14)	(22)	(63)
Unvested at end of year, Shares	947	1,003	1,167
Unvested at beginning of year, Grant Date Fair Value	$ 98.66	$ 60.45	$ 47.33
Granted, Grant Date Fair Value	133.03	130.71	110.74
Vested, Grant Date Fair Value	102.79	77.21	57.09
Canceled, Grant Date Fair Value	106.76	93.73	49.54
Unvested at end of year, Grant Date Fair Value	$ 124.89	$ 98.66	$ 60.45

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Stock-Based Compensation - Summary of Nucor's Restricted Stock Activity under AIP and LTIP (Detail) - Restricted Stock Units and Restricted Stock Awards [Member] - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested at beginning of year, Shares	209	107	127
Granted, Shares	414	465	262
Vested, Shares	(406)	(356)	(273)
Canceled, Shares	(7)	(7)	(9)
Unvested at end of year, Shares	210	209	107
Unvested at beginning of year, Grant Date Fair Value	$ 108.55	$ 57.17	$ 49.94
Granted, Grant Date Fair Value	171.38	128.62	65.61
Vested, Grant Date Fair Value	152.68	119.29	62.17
Canceled, Grant Date Fair Value	154.05	113.86	48.75
Unvested at end of year, Grant Date Fair Value	$ 145.55	$ 108.55	$ 57.17

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Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee Benefit Plan [Abstract]
Profit Sharing and Retirement Savings Plan, plan expense	$ 611.1	$ 994.2	$ 869.9
Unfunded obligation	33.2	25.6
Expense associated with early retiree medical plan	$ 0.3	$ 2.3	$ 1.8
Discount rate used to calculate benefit obligation	5.01%	5.24%	2.81%
Health care cost trend rate	6.80%	6.30%	5.30%
Projected ultimate future health care cost trend rate	4.00%
Year that trend rate is projected to reach ultimate rate	2049

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Interest (Income) Expense - Schedule of Components of Net Interest (Income) Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Revenue Or Expense Net [Abstract]
Interest expense	$ 245,954	$ 218,911	$ 163,121
Interest income	(275,586)	(48,695)	(4,267)
Interest expense, net	$ (29,632)	$ 170,216	$ 158,854

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Interest (Income) Expense - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Revenue Or Expense Net [Abstract]
Interest paid	$ 257.1	$ 229.5	$ 170.7

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Income Taxes - Components of Earnings Before Income Taxes and Noncontrolling Interests (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
United States	$ 6,203,409	$ 10,212,850	$ 9,076,921
Foreign	69,348	31,994	123,937
Earnings before income taxes and noncontrolling interests	$ 6,272,757	$ 10,244,844	$ 9,200,858

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Income Taxes - Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Components Of Income Tax Expense Benefit Continuing Operations [Abstract]
Federal, current	$ 1,127,369	$ 1,894,848	$ 1,753,376
State, current	194,186	304,323	293,752
Foreign, current	16,992	12,882	19,695
Total current	1,338,547	2,212,053	2,066,823
Federal, deferred	20,621	77,961	10,916
State, deferred	(18,738)	(120,440)	(3,042)
Foreign, deferred	19,536	(4,370)	3,791
Total deferred	21,419	(46,849)	11,665
Total provision for income taxes	$ 1,359,966	$ 2,165,204	$ 2,078,488

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Line Items]
Federal statutory tax rate	21.00%	21.00%	21.00%
Effective income tax rate	21.68%	21.13%	22.59%
Effective income tax rate	2.14%	1.41%	2.49%
Non-current deferred tax assets included in other assets	$ 40,700	$ 19,300
Non-current deferred tax liabilities included in deferred credits and other liabilities	1,292,052	1,284,696
Current federal and state income taxes receivable	346,100	564,700
Net federal, state and foreign income taxes paid (refund received)	1,060,000	2,630,000	$ 1,680,000
Unrecognized tax benefits	188,254	141,692	95,136	$ 47,965
Amount of unrecognized tax benefits affects effective tax rate	187,600	141,100
Estimate of possible decrease in gross uncertain tax positions, exclusive of interest, as a result of the expiration of the statute of limitations	5,600
Expense (benefit) for interest and penalties	10,400	9,400	$ 5,500
Accrued interest and penalties related to uncertain tax positions	37,400	26,900
Deferred Credits and Other Liabilities [Member]
Income Tax Disclosure [Line Items]
Non-current deferred tax liabilities included in deferred credits and other liabilities	1,330,000	1,300,000
State Tax Credits [Member]
Income Tax Disclosure [Line Items]
Net tax benefit		$ 76,400
Effective income tax rate		(0.75%)
State and Local Jurisdiction [Member]
Income Tax Disclosure [Line Items]
State NOL carryforwards	$ 185,100	$ 285,400
State and Local Jurisdiction [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Unused NOL carryforward expiration year	2043
State and Local Jurisdiction [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Unused NOL carryforward expiration year	2024
Foreign Country [Member]
Income Tax Disclosure [Line Items]
Foreign NOL carryforwards	$ 325,600	79,400
Foreign Country [Member] | Maximum [Member]
Income Tax Disclosure [Line Items]
Unused NOL carryforward expiration year	2042
Foreign Country [Member] | Minimum [Member]
Income Tax Disclosure [Line Items]
Unused NOL carryforward expiration year	2026
Valuation Allowance of a State Deferred Tax Asset [Member]"
Income Tax Disclosure [Line Items]
Net tax benefit		$ 88,000
Effective income tax rate		(0.86%)

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Income Taxes - Reconciliation of the Federal Statutory Tax Rate to Total Provisions (Detail)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Taxes computed at statutory rate	21.00%	21.00%	21.00%
State income taxes, net of federal income tax benefit	2.14%	1.41%	2.49%
Federal research credit	(0.51%)	(0.10%)	(0.07%)
Equity in losses of foreign joint venture	0.17%	0.11%
Foreign rate differential	0.10%		(0.03%)
Noncontrolling interests	(1.27%)	(0.85%)	(0.67%)
Other, net	0.05%	(0.44%)	(0.13%)
Provision for income taxes	21.68%	21.13%	22.59%

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Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Components Of Deferred Tax Assets And Liabilities [Abstract]
Accrued liabilities and reserves	$ 252,794	$ 236,132
Allowance for doubtful accounts	39,102	55,160
Inventory	141,460	143,384
Research and development expenditures	133,935	42,109
Post-retirement benefits	8,571	7,997
Hedges	5,146
Net operating loss carryforward	93,794	30,295
Tax credit carryforwards	215,630	162,498
Other deferred tax assets	12,016	10,894
Valuation allowance	(210,084)	(77,510)
Total deferred tax assets	692,364	610,959
Holdbacks and amounts not due under contracts	(15,714)	(16,016)
Hedges		(7,426)
Intangibles	(706,174)	(724,450)
Property, plant and equipment	(1,170,080)	(1,050,579)
Other deferred tax liabilities	(48,579)	(51,726)
Book/Tax differences on debt modifications	(43,869)	(45,458)
Total deferred tax liabilities	(1,984,416)	(1,895,655)
Total net deferred tax liabilities	$ (1,292,052)	$ (1,284,696)

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Income Taxes - Reconciliation of the Beginning and Ending Amounts of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation Of Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward
Balance at beginning of year	$ 141,692	$ 95,136	$ 47,965
Additions based on tax positions related to current year	44,113	54,438	52,853
Additions based on tax positions related to prior years	9,886	13,473	2,405
Reductions based on tax positions related to prior years	(496)	(9,275)	(3,060)
Reductions due to statute of limitations lapse	(6,941)	(12,080)	(5,027)
Balance at end of year	$ 188,254	$ 141,692	$ 95,136

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Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Beginning Balance, Gains and (Losses) on Hedging Derivatives	$ 26,100		$ 1,112
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax	(52,077)		76,542		$ 15,112
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Gains and (Losses) on Hedging Derivatives	12,077	[1]	(51,554)	[2]	(9,300)
Net current-period other comprehensive income (loss), Gains and (Losses) on Hedging Derivatives	(40,000)		24,988
Ending Balance, Gains and (Losses) on Hedging Derivatives	(13,900)		26,100		1,112
Beginning Balance, Foreign Currency Gains (Losses)	(180,216)		(124,868)
Other comprehensive income (loss) before reclassifications, Foreign Currency Gains (Losses)	21,041		(55,348)		(4,041)
Net current-period other comprehensive income (loss), Foreign Currency Gains (Losses)	21,041		(55,348)
Ending Balance, Foreign Currency Gains (Losses)	(159,175)		(180,216)		(124,868)
Beginning Balance, Adjustment to Early Retiree Medical Plan	16,599		8,474
Other comprehensive income (loss) before reclassifications, Adjustment to Early Retiree Medical Plan	(4,787)		6,328		1,875
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Adjustment to Early Retiree Medical Plan	(809)	[1]	1,797	[2]	(67)
Net current-period other comprehensive income (loss), Adjustment to Early Retiree Medical Plan	(5,596)		8,125
Ending Balance, Adjustment to Early Retiree Medical Plan	11,003		16,599		8,474
Beginning Balance	(137,517)		(115,282)
Other comprehensive income (loss) before reclassifications	(35,823)		27,522
Amounts reclassified from accumulated other comprehensive income (loss) into earnings	11,268	[1]	(49,757)	[2]
Net current-period other comprehensive income (loss)	(24,555)		(22,235)		3,579
Ending Balance	$ (162,072)		$ (137,517)		$ (115,282)

[1] Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

[2] Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss) into earnings, Gains and (Losses) on Hedging Derivatives	$ 12,077	[1]	$ (51,554)	[2]	$ (9,300)
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of ($255), $671 and ($10) for 2023, 2022 and 2021, respectively	(809)	[1]	1,797	[2]	(67)
Reclassification adjustment for gain (loss) on settlement of hedging derivatives included in net earnings, tax effect	3,800		(16,400)		(3,100)
AOCI reclassification impact on tax	(255)		671		$ (10)
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	12,077		(51,554)
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of ($255), $671 and ($10) for 2023, 2022 and 2021, respectively	(809)		1,797
Reclassification adjustment for gain (loss) on settlement of hedging derivatives included in net earnings, tax effect	3,800		(16,400)
AOCI reclassification impact on tax	$ (255)		$ 671

[1] Includes $12,077 and $(809) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $3,800 and $(255), respectively.

[2] Includes $(51,554) and $1,797 net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net gains on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $(16,400) and $671, respectively.

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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								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net Income (Loss)	$ 785,399	$ 1,141,506	$ 1,461,354	$ 1,136,542	$ 1,255,733	$ 1,694,748	$ 2,561,233	$ 2,095,623	$ 4,524,801	$ 7,607,337	$ 6,827,461
Earnings allocated to participating securities, Basic									(16,946)	(31,172)	(32,311)
Net earnings available to common stockholders, Basic									$ 4,507,855	$ 7,576,165	$ 6,795,150
Basic average shares outstanding									249,773	262,348	292,491
Basic net earnings per share	$ 3.17	$ 4.58	$ 5.82	$ 4.47	$ 4.9	$ 6.51	$ 9.69	$ 7.69	$ 18.05	$ 28.88	$ 23.23
Diluted net earnings	$ 785,399	$ 1,141,506	$ 1,461,354	$ 1,136,542	$ 1,255,733	$ 1,694,748	$ 2,561,233	$ 2,095,623	$ 4,524,801	$ 7,607,337	$ 6,827,461
Earnings allocated to participating securities, Diluted									(16,897)	(31,057)	(32,190)
Net earnings available to common stockholders, Diluted									$ 4,507,904	$ 7,576,280	$ 6,795,271
Dilutive effect of stock options and other									639	828	899
Diluted average shares outstanding									250,412	263,176	293,390
Diluted net earnings per share	$ 3.16	$ 4.57	$ 5.81	$ 4.45	$ 4.89	$ 6.5	$ 9.67	$ 7.67	$ 18	$ 28.79	$ 23.16

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Earnings Per Share - Anti-dilutive Stock Options (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Weighted-average shares	25	145
Weighted-average exercise price	$ 130.71	$ 91.06

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Segments - Additional Information (Details) - NJSM [Member]	Dec. 31, 2023	Oct. 27, 2023	Oct. 26, 2023
Segment Reporting Information [Line Items]
Additional equity investment interest percent acquired	1.00%	1.00%
Noncontrolling interest, ownership percentage by parent	51.00%	51.00%	50.00%

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Segments - Segments (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 7,704,531	$ 8,775,734	$ 9,523,256	$ 8,709,980	$ 8,723,956	$ 10,500,755	$ 11,794,474	$ 10,493,282	$ 34,713,501	$ 41,512,467	$ 36,483,939
Depreciation expense									930,585	826,692	735,406
Amortization expense									237,730	234,942	129,157
Earnings (loss) before income taxes and noncontrolling interests									6,272,757	10,244,844	9,200,858
Total assets	35,340,499				32,479,210				35,340,499	32,479,210	25,823,072
Capital expenditures									2,215,210	1,952,465	1,700,364
Operating Segments [Member] | Steel Mills [Member]
Segment Reporting Information [Line Items]
Net sales									20,092,662	24,189,858	24,145,396
Depreciation expense									610,510	529,005	465,733
Amortization expense									7,829	7,829	7,829
Earnings (loss) before income taxes and noncontrolling interests									3,712,470	7,199,087	9,735,020
Total assets	15,407,266				14,157,229				15,407,266	14,157,229	13,235,463
Capital expenditures									1,440,478	1,453,277	1,336,276
Operating Segments [Member] | Steel Products [Member]
Segment Reporting Information [Line Items]
Net sales									12,758,939	15,060,328	9,727,943
Depreciation expense									131,189	115,501	99,248
Amortization expense									202,129	199,379	93,160
Earnings (loss) before income taxes and noncontrolling interests									3,443,950	4,093,105	1,291,450
Total assets	10,914,870				12,087,145				10,914,870	12,087,145	7,845,010
Capital expenditures									367,170	267,128	187,152
Operating Segments [Member] | Raw Materials [Member]
Segment Reporting Information [Line Items]
Net sales									1,861,900	2,262,281	2,610,600
Depreciation expense									173,657	171,060	159,886
Amortization expense									27,772	27,734	28,168
Earnings (loss) before income taxes and noncontrolling interests									253,506	496,823	549,956
Total assets	3,546,759				3,383,114				3,546,759	3,383,114	3,870,806
Capital expenditures									352,642	181,680	128,765
Intercompany Eliminations [Member] | Steel Mills [Member]
Segment Reporting Information [Line Items]
Net sales									4,812,479	5,859,367	6,297,688
Intercompany Eliminations [Member] | Steel Products [Member]
Segment Reporting Information [Line Items]
Net sales									455,816	547,219	360,063
Intercompany Eliminations [Member] | Raw Materials [Member]
Segment Reporting Information [Line Items]
Net sales									12,363,577	13,715,176	15,762,685
Corporate and Eliminations Items [Member]
Segment Reporting Information [Line Items]
Net sales									(17,631,872)	(20,121,762)	(22,420,436)
Earnings (loss) before income taxes and noncontrolling interests									(1,137,169)	(1,544,171)	(2,375,568)
Corporate [Member]
Segment Reporting Information [Line Items]
Depreciation expense									15,229	11,126	10,539
Total assets	$ 5,471,604				$ 2,851,722				5,471,604	2,851,722	871,793
Capital expenditures									$ 54,920	$ 50,380	$ 48,171

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Segments - Schedule of Net Sale by Product to External Customers (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax	$ 7,704,531	$ 8,775,734	$ 9,523,256	$ 8,709,980	$ 8,723,956	$ 10,500,755	$ 11,794,474	$ 10,493,282	$ 34,713,501	$ 41,512,467	$ 36,483,939
Sheet [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									9,146,676	11,437,799	12,675,679
Bar [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									5,993,751	7,031,798	6,039,187
Structural [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									2,429,211	2,928,072	2,597,768
Plate [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									2,523,024	2,792,188	2,832,762
Tubular Products [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									1,588,211	1,944,532	2,194,732
Rebar Fabrication [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									2,181,929	2,205,960	1,794,658
Joist [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									2,211,965	2,958,235	1,351,235
Deck [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									1,712,474	2,392,438	1,167,162
Other Steel Products [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									5,064,360	5,559,164	3,220,155
Raw Materials [Member]
Segment Reporting Information [Line Items]
Revenue From Contract With Customer Excluding Assessed Tax									$ 1,861,900	$ 2,262,281	$ 2,610,601

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Revenue - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Revenue From Contract With Customers [Line Items]
Contract with customer, timing of satisfaction of performance obligation and payment	The durations of Nucor’s contracts with customers are generally one year or less. Customer payment terms are generally 30 days.
Contract liabilities	$ 313.8	$ 285.0
Revenue reclassified from contract liabilities	$ 191.8
Nucor Warehouse Systems [Member]
Revenue From Contract With Customers [Line Items]
Contract with customer, timing of satisfaction of performance obligation and payment	three and six months
Steel Mills [Member]
Revenue From Contract With Customers [Line Items]
Contract with customer, timing of satisfaction of performance obligation and payment	one year or less

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Restricted Cash and Cash Equivalents - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Aug. 31, 2021	Jul. 31, 2020	Dec. 31, 2023	Dec. 31, 2022
Restricted Cash And Cash Equivalents Items [Line Items]
Qualified expenditures for construction of facility			$ 78,900	$ 64,200
Restricted cash and cash equivalents			$ 3,494	$ 80,368
Variable Rate Green Bonds [Member]
Restricted Cash And Cash Equivalents Items [Line Items]
Debt instrument, issuance date	Aug. 31, 2021	Jul. 27, 2020
Issuance of bonds	$ 197,000	$ 162,600
Debt instrument, term	40 years	40 years

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Acquisitions - Additional Information (Details) $ in Thousands							12 Months Ended
	Oct. 27, 2023	Oct. 26, 2023 USD ($)	Jun. 24, 2022 USD ($)	Feb. 01, 2022 USD ($)	Aug. 20, 2021 USD ($) Distributioncenter	Aug. 09, 2021 USD ($) Facility Brand	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Goodwill							$ 3,968,847	$ 3,920,060	$ 2,827,344
Acquisitions net of cash acquired							$ 70,824	3,553,191	1,426,424
Nucor JFE Steel Mexico [Member]
Business Acquisition [Line Items]
Business combination noncontrolling interest fair value percentage not acquired by Nucor	49.00%
Implied percentage to determine fair value of noncontrolling interest	100.00%
Additional equity investment interest percent acquired	1.00%						1.00%
Noncontrolling interest, ownership percentage by parent	51.00%	50.00%					51.00%
Nucor JFE Steel Mexico [Member] | Marketing, Administrative and Other Expenses [Member]
Business Acquisition [Line Items]
Acquisition remeasured loss		$ 21,000
Steel Products [Member]
Business Acquisition [Line Items]
Goodwill							$ 2,514,172	2,510,045	1,439,874
C.H.I. Overhead Doors [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price			$ 3,000,000
Goodwill			1,033,192
Goodwill recognized for tax purposes			5,600
C.H.I. Overhead Doors [Member] | Steel Products [Member]
Business Acquisition [Line Items]
Goodwill			$ 1,040,000
CSI [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price				$ 400,000
Goodwill				$ 62,011
Acquired controlling ownership percentage				51.00%
Percentage of assets and liabilities				100.00%
Business combination noncontrolling interest fair value percentage not acquired by Nucor				49.00%
Implied percentage to determine fair value of noncontrolling interest				100.00%
CSI [Member] | Vale S.A [Member]
Business Acquisition [Line Items]
Acquired controlling ownership percentage				50.00%
CSI [Member] | JFE Steel Corporation [Member]
Business Acquisition [Line Items]
Acquired controlling ownership percentage				1.00%
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price						$ 1,000,000
Goodwill						$ 480,167
Business acquisition number of leading brands | Brand						2
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member] | North America [Member]
Business Acquisition [Line Items]
Business acquisition, Number of facilities | Facility						7
Hannibal Industries Inc [Member]
Business Acquisition [Line Items]
Business acquisition, purchase price					$ 370,000
Goodwill					$ 84,922
Number of distribution centers | Distributioncenter					3
Hannibal Industries Inc [Member] | Employee Stock Ownership Plan [Member]
Business Acquisition [Line Items]
Acquired controlling ownership percentage					100.00%
Other Acquisitions [Member]
Business Acquisition [Line Items]
Acquisitions net of cash acquired							$ 70,800	$ 169,600	$ 134,800

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Acquisitions - Summary of Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Oct. 27, 2023	Dec. 31, 2022	Jun. 24, 2022	Feb. 01, 2022	Dec. 31, 2021	Aug. 20, 2021	Aug. 09, 2021
Business Acquisition [Line Items]
Goodwill	$ 3,968,847		$ 3,920,060			$ 2,827,344
C.H.I. Overhead Doors [Member]
Business Acquisition [Line Items]
Cash				$ 159,066
Accounts receivable				77,530
Inventory				52,515
Other current assets				18,177
Property, plant and equipment				117,392
Goodwill				1,033,192
Other intangible assets				2,389,180
Other assets				9,559
Total assets acquired				3,856,611
Current liabilities				75,146
Deferred income taxes				578,019
Other liabilities				7,509
Total liabilities assumed				660,674
Net assets acquired				$ 3,195,937
CSI [Member]
Business Acquisition [Line Items]
Cash					$ 98,537
Accounts receivable					159,257
Inventory					354,614
Other current assets					5,298
Property, plant and equipment					566,714
Goodwill					62,011
Other assets					7,071
Total assets acquired					1,253,502
Current portion of long-term debt					9,826
Other current liabilities					162,808
Other liabilities					139,947
Total liabilities assumed					380,447
Net assets acquired					873,055
Long-term debt due after one year					67,866
Less: Fair value of noncontrolling interest					427,797
Net assets acquired at 51%					$ 445,258
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member]
Business Acquisition [Line Items]
Accounts receivable								$ 47,037
Inventory								73,000
Other current assets								4,478
Property, plant and equipment								102,966
Goodwill								480,167
Other intangible assets								364,000
Other assets								13,515
Total assets acquired								1,085,163
Current liabilities								46,620
Other liabilities								12,855
Total liabilities assumed								59,475
Net assets acquired								$ 1,025,688
Hannibal Industries Inc [Member]
Business Acquisition [Line Items]
Cash							$ 124,655
Accounts receivable							115,728
Inventory							65,005
Other current assets							2,113
Property, plant and equipment							116,955
Goodwill							84,922
Other intangible assets							201,700
Other assets							8,776
Total assets acquired							719,854
Current liabilities							228,750
Finance lease obligations							80,124
Other liabilities							13,155
Total liabilities assumed							322,029
Net assets acquired							$ 397,825
NJSM [Member]
Business Acquisition [Line Items]
Cash		$ 11,050
Accounts receivable		10,968
Inventory		44,661
Other current assets		18,053
Property, plant and equipment		257,537
Other assets		612
Total assets acquired		342,881
Short-term debt		95,000
Current portion of long-term debt		50,000
Other current liabilities		13,502
Other liabilities		1,379
Total liabilities assumed		189,881
Net assets acquired		153,000
Long-term debt due after one year		30,000
Less: Fair value of noncontrolling interest		74,970
Net assets acquired at 51%		$ 78,030

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Acquisitions - Summary of Purchase Price Allocation to Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 24, 2022	Aug. 20, 2021	Aug. 09, 2021
C.H.I. Overhead Doors [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2,389,180
C.H.I. Overhead Doors [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 2,242,000
Weighted-Average Life	25 years
C.H.I. Overhead Doors [Member] | Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 147,000
Weighted-Average Life	13 years
C.H.I. Overhead Doors [Member] | Backlog [Member]
Business Acquisition [Line Items]
Identifiable intangible assets	$ 180
Weighted-Average Life	1 year
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 364,000
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 309,000
Weighted-Average Life			10 years
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member] | Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 45,000
Weighted-Average Life			10 years
Cornerstone Building Brands, Inc., Insulated Metal Panels ("IMP") [Member] | Backlog [Member]
Business Acquisition [Line Items]
Identifiable intangible assets			$ 10,000
Weighted-Average Life			1 year
Hannibal Industries Inc [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 201,700
Hannibal Industries Inc [Member] | Customer Relationships [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 144,000
Weighted-Average Life		10 years
Hannibal Industries Inc [Member] | Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 26,000
Weighted-Average Life		7 years
Hannibal Industries Inc [Member] | Backlog [Member]
Business Acquisition [Line Items]
Identifiable intangible assets		$ 31,700
Weighted-Average Life		1 year

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Quarterly Information - Schedule of Quarterly Information (Unaudited) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jul. 01, 2023	Apr. 01, 2023	Dec. 31, 2022	Oct. 01, 2022	Jul. 02, 2022	Apr. 02, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 7,704,531	$ 8,775,734	$ 9,523,256	$ 8,709,980	$ 8,723,956	$ 10,500,755	$ 11,794,474	$ 10,493,282	$ 34,713,501	$ 41,512,467	$ 36,483,939
Gross margin	1,393,718	1,920,800	2,501,674	1,998,202	2,097,487	2,843,391	4,104,263	3,458,139
Net earnings before noncontrolling interests	872,832	1,221,255	1,587,075	1,231,629	1,326,245	1,799,043	2,727,237	2,227,115	4,912,791	8,079,640	7,122,370
Net Income (Loss)	$ 785,399	$ 1,141,506	$ 1,461,354	$ 1,136,542	$ 1,255,733	$ 1,694,748	$ 2,561,233	$ 2,095,623	$ 4,524,801	$ 7,607,337	$ 6,827,461
Basic	$ 3.17	$ 4.58	$ 5.82	$ 4.47	$ 4.9	$ 6.51	$ 9.69	$ 7.69	$ 18.05	$ 28.88	$ 23.23
Diluted	$ 3.16	$ 4.57	$ 5.81	$ 4.45	$ 4.89	$ 6.5	$ 9.67	$ 7.67	$ 18	$ 28.79	$ 23.16

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Quarterly Information - Schedule of Quarterly Information (Unaudited) (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Quarterly Financial Information [Line Items]
Losses and impairments of assets		$ 101,756	$ 62,161
Change in the valuation allowance of a state deferred tax asset	$ 88,000
Net benefit related to state tax credits	60,400
Raw Materials [Member] | Unproved Natural Gas Well Assets [Member]
Quarterly Financial Information [Line Items]
Losses and impairments of assets	$ 96,000