Segment Information (Tables)

3 Months Ended

Mar. 31, 2012

Segment Information [Abstract]

Segment Reporting Information

	Three Months Ended March 31,
	2012			2011
Net external sales
Olefins
Polyethylene	$	445,420		$	446,703
Ethylene, styrene and other		286,851			158,377
Total Olefins		732,271			605,080
Vinyls
PVC, caustic soda and other		214,383			191,857
Building products		88,213			70,315
Total Vinyls		302,596			262,172
	$	1,034,867		$	867,252
Intersegment sales
Olefins	$	101,457		$	106,270
Vinyls		388			320
	$	101,845		$	106,590
Income (loss) from operations
Olefins	$	129,207		$	145,256
Vinyls		21,082			(2,848	)
Corporate and other		(4,664	)		(1,771	)
	$	145,625		$	140,637
Depreciation and amortization
Olefins	$	23,763		$	21,644
Vinyls		11,509			10,774
Corporate and other		122			160
	$	35,394		$	32,578
Other income, net
Olefins	$	956		$	180
Vinyls		240			511
Corporate and other		151			516
	$	1,347		$	1,207
Provision for (benefit from) income taxes
Olefins	$	42,175		$	48,291
Vinyls		6,016			(2,153	)
Corporate and other		(1,209	)		(758	)
	$	46,982		$	45,380
Capital expenditures
Olefins	$	17,480		$	17,950
Vinyls		46,841			10,784
Corporate and other		581			74
	$	64,902		$	28,808

Reconciliation Of Total Segment Income From Operations To Consolidated Income Before Income Taxes

	Three Months Ended March 31,
	2012			2011
Income from operations	$	145,625		$	140,637
Interest expense		(12,177	)		(12,920	)
Other income, net		1,347			1,207
Income before income taxes	$	134,795		$	128,924

Total Assets

	March 31, 2012		December 31, 2011
Total assets
Olefins	$	1,413,225	$	1,441,752
Vinyls		862,549		824,825
Corporate and other		1,054,273		1,000,244
	$	3,330,047	$	3,266,821