SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Segment Information

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Sales:	($ in millions)
Chlor Alkali Products and Vinyls	$	909.2		$	1,018.7		$	1,781.4		$	1,954.8
Epoxy	518.8			543.8			1,042.8			1,147.1
Winchester	164.9			165.9			322.1			336.8
Total sales	$	1,592.9		$	1,728.4		$	3,146.3		$	3,438.7
Income (loss) before taxes:
Chlor Alkali Products and Vinyls	$	70.7		$	149.4		$	191.1		$	279.9
Epoxy	3.9			24.8			14.4			2.7
Winchester	10.1			11.8			19.2			23.8
Corporate/other:
Environmental expense	(17.2		)	(4.4		)	(19.0		)	(6.7		)
Other corporate and unallocated costs	(35.3		)	(45.3		)	(74.4		)	(81.8		)
Restructuring charges	(3.8		)	(6.4		)	(7.8		)	(10.4		)
Acquisition-related costs	—			(0.3		)	—			(0.6		)
Other operating income	0.1			—			0.2			8.1
Interest expense	(57.9		)	(61.1		)	(115.3		)	(124.8		)
Interest income	0.3			0.4			0.5			0.8
Non-operating pension income	4.2			5.4			8.1			10.8
Other income	—			—			11.2			—
Income (loss) before taxes	$	(24.9	)	$	74.3		$	28.2		$	101.8

Disaggregation of Revenue

	Three Months Ended June 30, 2019
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Sales:	($ in millions)
United States	$	601.0	$	175.4	$	146.8	$	923.2
Europe	39.1		222.6		2.3		264.0
Other foreign	269.1		120.8		15.8		405.7
Total sales	$	909.2	$	518.8	$	164.9	$	1,592.9

	Six Months Ended June 30, 2019
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Sales:	($ in millions)
United States	$	1,205.0	$	339.5	$	288.1	$	1,832.6
Europe	77.7		458.0		5.1		540.8
Other foreign	498.7		245.3		28.9		772.9
Total sales	$	1,781.4	$	1,042.8	$	322.1	$	3,146.3

	Three Months Ended June 30, 2018
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Sales:	($ in millions)
United States	$	665.1	$	200.4	$	146.1	$	1,011.6
Europe	50.3		195.2		4.2		249.7
Other foreign	303.3		148.2		15.6		467.1
Total sales	$	1,018.7	$	543.8	$	165.9	$	1,728.4

	Six Months Ended June 30, 2018
	Chlor Alkali Products and Vinyls		Epoxy		Winchester		Total
Sales:	($ in millions)
United States	$	1,273.2	$	380.8	$	304.7	$	1,958.7
Europe	96.1		473.7		5.2		575.0
Other foreign	585.5		292.6		26.9		905.0
Total sales	$	1,954.8	$	1,147.1	$	336.8	$	3,438.7

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Sales:	($ in millions)
Chlor Alkali Products and Vinyls
Caustic soda	$	461.0	$	564.8	$	923.1	$	1,101.7
Chlorine, chlorine-derivatives and other co-products	448.2		453.9		858.3		853.1
Total Chlor Alkali Products and Vinyls	909.2		1,018.7		1,781.4		1,954.8
Epoxy
Aromatics and allylics	234.8		237.8		478.6		546.2
Epoxy resins	284.0		306.0		564.2		600.9
Total Epoxy	518.8		543.8		1,042.8		1,147.1
Winchester
Commercial	103.6		105.9		210.0		217.1
Military and law enforcement	61.3		60.0		112.1		119.7
Total Winchester	164.9		165.9		322.1		336.8
Total sales	$	1,592.9	$	1,728.4	$	3,146.3	$	3,438.7