Consolidated Statements of Earnings - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net sales	$ 30,734	$ 34,714	$ 41,512
Costs, expenses and other:
Cost of products sold	26,632	26,899	29,009
Marketing, administrative and other expenses	1,123	1,585	1,997
Equity in earnings of unconsolidated affiliates	(30)	(13)	(11)
Losses and impairments of assets	137		102
Interest (income) expense, net	(30)	(30)	170
Costs, expenses and other, total	27,832	28,441	31,267
Earnings before income taxes and noncontrolling interests	2,902	6,273	10,245
Provision for income taxes	583	1,360	2,166
Net earnings before noncontrolling interests	2,319	4,913	8,079
Earnings attributable to noncontrolling interests	292	388	472
Net earnings attributable to Nucor stockholders	$ 2,027	$ 4,525	$ 7,607
Net earnings per share:
Basic	$ 8.47	$ 18.05	$ 28.88
Diluted	$ 8.46	$ 18	$ 28.79