SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Segment Information

	Years ended December 31,
	2012			2011			2010
Sales:	($ in millions)
Chlor Alkali Products	$	1,410.8		$	1,389.1		$	1,036.6
Chemical Distribution	156.3			—			—
Winchester	617.6			572.0			549.3
Total sales	$	2,184.7		$	1,961.1		$	1,585.9
Income before taxes:
Chlor Alkali Products	$	263.2		$	245.0		$	117.2
Chemical Distribution	4.5			—			—
Winchester	55.2			37.9			63.0
Corporate/Other	(51.8		)	(46.7		)	(48.7		)
Restructuring charges	(8.5		)	(10.7		)	(34.2		)
Acquisition costs	(8.3		)	(0.8		)	—
Other operating income	7.6			8.8			2.5
Interest expense	(26.4		)	(30.4		)	(25.4		)
Interest income	1.0			1.2			1.0
Other (expense) income	(11.3		)	175.1			1.5
Income before taxes	$	225.2		$	379.4		$	76.9
Earnings of non-consolidated affiliates:
Chlor Alkali Products	$	3.0		$	9.6		$	29.9
Depreciation and amortization expense:
Chlor Alkali Products	$	88.9		$	85.6		$	74.8
Chemical Distribution	5.5			—			—
Winchester	13.6			10.9			10.1
Corporate/Other	2.9			2.8			2.0
Total depreciation and amortization expense	$	110.9		$	99.3		$	86.9
Capital spending:
Chlor Alkali Products	$	221.3		$	134.2		$	67.6
Chemical Distribution	0.8			—			—
Winchester	32.1			63.9			15.2
Corporate/Other	1.5			2.8			2.5
Total capital spending	$	255.7		$	200.9		$	85.3

	December 31,
	2012		2011
Assets:	($ in millions)
Chlor Alkali Products	$	1,781.8	$	1,652.3
Chemical Distribution	379.7		—
Winchester	340.7		328.6
Corporate/Other	275.5		468.7
Total assets	$	2,777.7	$	2,449.6
Investments—affiliated companies (at equity):
Chlor Alkali Products	$	29.3	$	27.6

Segment geographic data

	Years ended December 31,
Geographic Data:	2012			2011			2010
Sales:	($ in millions)
United States	$	1,970.5		$	1,774.0		$	1,425.7
Foreign	214.2			187.1			160.2
Transfers between areas:
United States	53.5			50.0			39.4
Foreign	85.5			95.3			66.1
Eliminations	(139.0		)	(145.3		)	(105.5		)
Total sales	$	2,184.7		$	1,961.1		$	1,585.9

	December 31,
	2012		2011
Assets:	($ in millions)
United States	$	2,520.8	$	2,208.8
Foreign	256.9		240.8
Total assets	$	2,777.7	$	2,449.6