SEGMENT INFORMATION (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Segment Information

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Sales:	($ in millions)
Chlor Alkali Products and Vinyls	$	865.1		$	733.0		$	1,702.0		$	1,437.3
Epoxy	492.0			450.0			1,059.6			910.2
Winchester	169.4			181.0			332.0			364.7
Total sales	$	1,526.5		$	1,364.0		$	3,093.6		$	2,712.2
Income (loss) before taxes:
Chlor Alkali Products and Vinyls	$	52.8		$	30.7		$	140.3		$	98.8
Epoxy	(8.1		)	—			(9.3		)	8.2
Winchester	19.0			31.2			44.1			59.9
Corporate/other:
Pension income	10.7			12.6			21.0			24.8
Environmental expense	(1.8		)	(2.4		)	(4.4		)	(5.1		)
Other corporate and unallocated costs	(29.7		)	(23.9		)	(63.1		)	(53.5		)
Restructuring charges	(8.5		)	(8.2		)	(16.7		)	(101.0		)
Acquisition-related costs	(4.4		)	(16.3		)	(11.4		)	(26.5		)
Other operating income (expense)	0.3			(0.2		)	(0.1		)	10.7
Interest expense	(52.5		)	(47.6		)	(104.9		)	(96.1		)
Interest income	0.4			0.5			0.6			0.8
Loss before taxes	$	(21.8	)	$	(23.6	)	$	(3.9	)	$	(79.0	)