Subsequent Events	6 Months Ended
Jun. 29, 2024
Subsequent Events [Abstract]
Subsequent Events	17. Subsequent Events On July 23, 2024, Nucor acquired Rytec Corporation ("Rytec"), a manufacturer and seller of high-speed, high-performance commercial doors, for a cash purchase price of approximately $565 million. Rytec has two manufacturing facilities in Wisconsin. The Company believes this acquisition further executes its strategy to expand beyond its core steelmaking businesses into related downstream businesses. Rytec will be included in the steel products segment.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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