Basis of Interim Presentation	3 Months Ended
Apr. 04, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Interim Presentation	1. Basis of Interim Presentation The information furnished in this Item 1 reflects all adjustments which are, in the opinion of management, necessary to make a fair statement of the results for the interim periods presented and are of a normal and recurring nature unless otherwise noted. The information furnished has not been audited; however, the December 31, 2025 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements included in this Item 1 should be read in conjunction with the audited consolidated financial statements and the notes thereto included in Nucor’s Annual Report on Form 10-K for the year ended December 31, 2025. Recently Issued Accounting Pronouncements In November 2024, new accounting guidance was issued that requires the disaggregated disclosure of specific expense categories, including purchases of inventory, employee compensation, depreciation and amortization, within relevant income statement captions. The new accounting guidance also requires disclosure of the total amount of selling expenses along with the definition of selling expenses. The new accounting guidance is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. Adoption of this new accounting guidance can either be applied prospectively to consolidated financial statements issued for reporting periods after the effective date or retrospectively to any or all prior periods presented in the consolidated financial statements. Early adoption is also permitted. The Company is evaluating the impact that the adoption of this new accounting guidance will have on its consolidated financial statements. In December 2025, new accounting guidance was issued related to government grants received by business entities. This new accounting guidance is effective for annual periods beginning after December 15, 2028 and interim periods within those annual reporting periods. Adoption of this new accounting guidance can either be applied under a modified prospective, modified retrospective or retrospective approach. The Company is evaluating the impact that the adoption of this new accounting guidance will have on its consolidated financial statements.

The information furnished in this Item 1 reflects all adjustments which are, in the opinion of management, necessary to make a fair statement of the results for the interim periods presented and are of a normal and recurring nature unless otherwise noted. The information furnished has not been audited; however, the December 31, 2025 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements included in this Item 1 should be read in conjunction with the audited consolidated financial statements and the notes thereto included in Nucor’s Annual Report on Form 10-K for the year ended December 31, 2025.

Recently Issued Accounting Pronouncements

In November 2024, new accounting guidance was issued that requires the disaggregated disclosure of specific expense categories, including purchases of inventory, employee compensation, depreciation and amortization, within relevant income statement captions. The new accounting guidance also requires disclosure of the total amount of selling expenses along with the definition of selling expenses. The new accounting guidance is effective for annual periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. Adoption of this new accounting guidance can either be applied prospectively to consolidated financial statements issued for reporting periods after the effective date or retrospectively to any or all prior periods presented in the consolidated financial statements. Early adoption is also permitted. The Company is evaluating the impact that the adoption of this new accounting guidance will have on its consolidated financial statements.

In December 2025, new accounting guidance was issued related to government grants received by business entities. This new accounting guidance is effective for annual periods beginning after December 15, 2028 and interim periods within those annual reporting periods. Adoption of this new accounting guidance can either be applied under a modified prospective, modified retrospective or retrospective approach. The Company is evaluating the impact that the adoption of this new accounting guidance will have on its consolidated financial statements.