Stockholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020	Sep. 06, 2018
Dividends declared per share	$ 0.405	$ 0.4025
Common Stock [Member]
Share repurchase program, available repurchase amount	$ 857,500,000
Common Stock [Member] | Maximum [Member]
Stock Repurchase Program, Authorized Amount			$ 2,000,000,000.00
Nucor-Yamato Steel Company [Member]
Noncontrolling interest, ownership percentage by parent	51.00%	51.00%