SEGMENT INFORMATION (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Information

	Three Months Ended March 31,
	2018			2017
Sales:	($ in millions)
Chlor Alkali Products and Vinyls	$	936.1		$	836.9
Epoxy	603.3			567.6
Winchester	170.9			162.6
Total sales	$	1,710.3		$	1,567.1
Income (loss) before taxes:
Chlor Alkali Products and Vinyls	$	130.5		$	87.5
Epoxy	(22.1		)	(1.2		)
Winchester	12.0			25.1
Corporate/other:
Environmental expense	(2.3		)	(2.6		)
Other corporate and unallocated costs	(36.5		)	(31.6		)
Restructuring charges	(4.0		)	(8.2		)
Acquisition-related costs	(0.3		)	(7.0		)
Other operating income (expense)	8.1			(0.4		)
Interest expense	(63.7		)	(52.4		)
Interest income	0.4			0.2
Non-operating pension income	5.4			8.5
Income before taxes	$	27.5		$	17.9

Disaggregation of Revenue

	Three Months Ended
	March 31, 2018
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Primary geographical markets:	($ in millions)
United States	$	608.1	$	180.4	$	158.6	$	947.1
Europe	45.8		278.5		1.0		325.3
Other foreign	282.2		144.4		11.3		437.9
Total Sales	$	936.1	$	603.3	$	170.9	$	1,710.3

	Three Months Ended
	March 31, 2017
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Primary geographical markets:	($ in millions)
United States	$	556.7	$	163.2	$	155.2	$	875.1
Europe	29.2		269.6		0.8		299.6
Other foreign	251.0		134.8		6.6		392.4
Total Sales	$	836.9	$	567.6	$	162.6	$	1,567.1

	Three Months Ended March 31,
	2018		2017
Major product lines:	($ in millions)
Chlor Alkali Products and Vinyls
Caustic soda	$	504.8	$	405.3
Chlorine, chlorine derivatives and other co-products	431.3		431.6
Total Chlor Alkali Products and Vinyls	936.1		836.9
Epoxy
Phenolics and allylics	308.4		299.4
Epoxy resins	294.9		268.2
Total Epoxy	603.3		567.6
Winchester
Commercial	111.2		117.9
Military and law enforcement	59.7		44.7
Total Winchester	170.9		162.6
Total Sales	$	1,710.3	$	1,567.1