Segments (Tables)

12 Months Ended

Dec. 31, 2011

Segments [Abstract]

Segments

	Year Ended December 31,
	2011			2010			2009
Net sales to external customers:
Steel mills	$	13,960,245		$	10,860,760		$	7,159,512
Steel products		3,431,490			2,831,209			2,691,322
Raw materials		2,128,391			1,814,329			1,076,964
All other		503,438			338,329			262,498
	$	20,023,564		$	15,844,627		$	11,190,296
Intercompany sales:
Steel mills	$	2,405,590		$	1,719,937		$	1,027,167
Steel products		55,646			43,565			27,453
Raw materials		10,436,379			8,052,986			3,402,084
All other		24,869			8,616			10,888
Corporate/eliminations		(12,922,484	)		(9,825,104	)		(4,467,592	)
	$	—		$	—		$	—
Depreciation expense:
Steel mills	$	371,984		$	370,458		$	357,722
Steel products		53,272			58,429			57,988
Raw materials		92,250			78,308			75,699
All other		56			90			105
Corporate		5,009			4,862			2,521
	$	522,571		$	512,147		$	494,035
Amortization expense:
Steel mills	$	—		$	262		$	400
Steel products		38,743			40,745			40,705
Raw materials		28,215			28,577			30,412
All other		871			871			871
Corporate		—			—			—
	$	67,829		$	70,455		$	72,388
Earnings (loss) before income taxes and noncontrolling interests:
Steel mills	$	1,703,933		$	778,946		$	(350,372	)
Steel products		(60,282	)		(173,433	)		(112,800	)
Raw materials		150,029			106,317			(76,965	)
All other		4,296			4,344			(14,130	)
Corporate/eliminations		(546,164	)		(449,059	)		140,289
	$	1,251,812		$	267,115		$	(413,978	)
Segment assets:
Steel mills	$	6,243,965		$	5,969,846		$	5,446,028
Steel products		2,903,281			2,835,812			2,707,678
Raw materials		2,916,226			2,710,544			2,417,649
All other		152,107			170,174			138,286
Corporate/eliminations		2,354,771			2,235,534			1,862,263
	$	14,570,350		$	13,921,910		$	12,571,904
Capital expenditures:
Steel mills	$	181,178		$	186,236		$	217,690
Steel products		20,918			21,321			37,601
Raw materials		245,337			125,536			113,000
All other		15			24			74
Corporate		3,179			12,177			22,135
	$	450,627		$	345,294		$	390,500

Schedule Of Net Sale By Product To External Customers

	Year Ended December 31,
	2011		2010		2009
Net sales to external customers:
Sheet	$	5,967,756	$	4,952,236	$	2,877,140
Bar		3,733,716		2,668,706		2,042,471
Structural		2,049,907		1,633,203		1,275,795
Plate		2,208,866		1,606,615		964,106
Steel products		3,431,490		2,831,209		2,691,322
Raw materials		2,128,391		1,814,329		1,076,964
All other		503,438		338,329		262,498
	$	20,023,564	$	15,844,627	$	11,190,296