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Property, Plant and Equipment
 9 Months Ended
Oct. 04, 2025
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment

3. Property, Plant and Equipment

Property, plant and equipment is recorded net of accumulated depreciation of $13.42 billion at October 4, 2025 ($12.62 billion at December 31, 2024).

Included within property, plant and equipment, net of the steel mills segment at October 4, 2025 is $222 million of assets, net of accumulated depreciation, related to our consolidated joint venture, Nucor-JFE Steel Mexico, S. de R.L. de C.V. (“NJSM”). During the fourth quarter of 2024, the Company determined that a triggering event occurred after review of NJSM's most recent annual forecast. The Company performed an impairment assessment to determine if the carrying amount of NJSM exceeded its projected undiscounted cash flows. Upon completion of the assessment, the Company determined that the carrying amount did not exceed its projected undiscounted cash flows and no impairment charge was required. Nucor will continue to monitor NJSM's financial performance. If NJSM's financial performance underperforms its forecasts, management may determine that a triggering event has occurred and additional testing may be required.