Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Plans Activity

A summary of activity under Nucor’s stock option plans is as follows (shares in thousands):

	2022					2021					2020
				Weighted-					Weighted-					Weighted-
				Average					Average					Average
				Exercise					Exercise					Exercise
Year Ended December 31,	Shares			Price		Shares			Price		Shares			Price
Number of shares under stock options:
Outstanding at beginning of year		1,186		$	55.58		3,916		$	50.03		3,892		$	50.78
Granted		98		$	130.71		138		$	110.74		529		$	42.46
Exercised		(447	)	$	51.14		(2,868	)	$	50.65		(266	)	$	44.51
Canceled		—		$	—		—		$	—		(239	)	$	51.58
Outstanding at end of year		837		$	66.76		1,186		$	55.58		3,916		$	50.03
Stock options exercisable at end of year		313		$	59.60		523		$	54.71		3,168		$	50.85

Summary of Stock Options Outstanding

The following table summarizes information about stock options outstanding at December 31, 2022 (shares in thousands):

	Options Outstanding					Options Exercisable
			Weighted-
			Average	Weighted-				Weighted-
Range of	Number		Remaining Contractual	Average Exercise		Number		Average Exercise
Exercise Prices	Outstanding		Life	Price		Exercisable		Price
$40.00 - $45.00		364	7.4 years	$	42.46		33	$	42.46
$45.01 - $50.00		148	5.8 years	$	48.18		148	$	48.18
$50.01 - $65.00		47	4.4 years	$	59.07		48	$	59.07
$65.01 - $110.75		180	7.6 years	$	98.30		73	$	80.10
$110.76 - $130.71		98	9.4 years	$	130.71		11	$	130.71
$40.00 - $130.71		837	7.2 years	$	66.76		313	$	59.60

Schedule of Grant Date Fair Value Black-Scholes Options-Pricing Model Assumptions

The fair value was estimated using the Black-Scholes options pricing model with the following assumptions:

	2022	2021	2020
Exercise price	$130.71	$110.74	$42.46
Expected dividend yield	1.53%	1.46%	3.79%
Expected stock price volatility	35.77%	32.86%	30.12%
Risk-free interest rate	2.98%	1.28%	0.50%
Expected life (years)	6.5	6.5	6.5

Summary of Nucor's RSU Activity

A summary of Nucor’s RSU activity is as follows (shares in thousands):

	2022		2021		2020
		Grant Date		Grant Date		Grant Date
Year Ended December 31,	Shares	Fair Value	Shares	Fair Value	Shares	Fair Value
Restricted stock units:
Unvested at beginning of year	1,167	$60.45	1,830	$47.33	1,776	$52.60
Granted	774	$130.71	397	$110.74	1,246	$42.46
Vested	(916)	$77.21	(997)	$57.09	(1,166)	$50.10
Canceled	(22)	$93.73	(63)	$49.54	(26)	$49.75
Unvested at end of year	1,003	$98.66	1,167	$60.45	1,830	$47.33

Summary of Nucor's Restricted Stock Activity under AIP and LTIP

A summary of Nucor’s restricted stock activity under the AIP and the LTIP is as follows (shares in thousands):

	2022					2021					2020
				Grant Date					Grant Date					Grant Date
Year Ended December 31,	Shares			Fair Value		Shares			Fair Value		Shares			Fair Value
Restricted stock units and restricted stock awards:
Unvested at beginning of year		107		$	57.17		127		$	49.94		147		$	60.81
Granted		465		$	128.62		262		$	65.61		348		$	36.15
Vested		(356	)	$	119.29		(273	)	$	62.17		(368	)	$	41.22
Canceled		(7	)	$	113.86		(9	)	$	48.75		—		$	—
Unvested at end of year		209		$	108.55		107		$	57.17		127		$	49.94