Inventories - Additional Information (Detail)	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials and supplies in inventory, percentage	37.00%	37.00%
Finished and semi-finished products in inventory, percentage	63.00%	63.00%

Finished and semi-finished products in inventory, percentage.

No definition available.

Name:	nue_FinishedAndSemiFinishedProductsInInventoryPercentage
Namespace Prefix:	nue_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant