Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Statement Of Comprehensive Income [Abstract]
Net earnings before noncontrolling interests	$ 2,319		$ 4,913		$ 8,079
Other comprehensive income (loss):
Net unrealized (loss) gain on hedging derivatives, net of income taxes of ($3), ($17) and $24 for 2024, 2023, and 2022, respectively	(6)		(52)		77
Reclassification adjustment for gain (loss) on settlement of hedging derivatives included in net earnings, net of income taxes of $7 $4, and ($16) for 2024, 2023, and 2022, respectively	21	[1]	12	[2]	(52)
Foreign currency translation (loss) gain, net of income taxes of $0 for 2024, 2023 and 2022	(61)		21		(55)
Adjustment to early retiree medical plan, net of income taxes of $0, ($2) and $2, for 2024, 2023 and 2022, respectively			(5)		6
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of $0 for 2024, 2023 and 2022, respectively			(1)	[2]	2
Net current-period other comprehensive income (loss)	(46)		(25)		(22)
Comprehensive income	2,273		4,888		8,057
Comprehensive income attributable to noncontrolling interests	292		388		472
Comprehensive income attributable to Nucor stockholders	$ 1,981		$ 4,500		$ 7,585

[1] Includes $21 and $(0) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $7 and $(0), respectively.

[2] Includes $12 and $(1) net-of-tax impact of accumulated other comprehensive income (loss) reclassifications into cost of products sold for net losses on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $4 and $(0.30), respectively.