Segments (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segments

Nucor’s results by segment for the second quarter and first six months of 2018 and 2017 were as follows (in thousands):

	Three Months (13 Weeks) Ended						Six Months (26 Weeks) Ended
	June 30, 2018			July 1, 2017			June 30, 2018			July 1, 2017
Net sales to external customers:
Steel mills	$	4,169,539		$	3,404,064		$	7,750,233		$	6,594,571
Steel products		1,738,370			1,366,693			3,207,081			2,579,050
Raw materials		552,865			404,012			1,071,879			816,327
	$	6,460,774		$	5,174,769		$	12,029,193		$	9,989,948
Intercompany sales:
Steel mills	$	1,065,780		$	759,245		$	1,964,106		$	1,417,605
Steel products		50,907			26,664			86,677			56,365
Raw materials		3,155,268			2,459,352			5,764,212			4,637,991
Corporate/eliminations		(4,271,955	)		(3,245,261	)		(7,814,995	)		(6,111,961	)
	$	—		$	—		$	—		$	—
Earnings (loss) before income taxes and noncontrolling interests:
Steel mills	$	961,784		$	579,520		$	1,522,287		$	1,223,703
Steel products		155,766			83,636			241,580			150,555
Raw materials		134,995			66,227			209,542			92,618
Corporate/eliminations		(338,844	)		(221,247	)		(543,796	)		(409,765	)
	$	913,701		$	508,136		$	1,429,613		$	1,057,111
	June 30, 2018			Dec. 31, 2017
Segment assets:
Steel mills	$	8,590,433		$	7,671,217
Steel products		4,672,730			4,323,907
Raw materials		3,573,219			3,396,110
Corporate/eliminations		615,310			450,024
	$	17,451,692		$	15,841,258