SEGMENT INFORMATION (Tables)

9 Months Ended

Sep. 30, 2017

Segment Reporting [Abstract]

Segment Information

	Three Months Ended September 30,						Nine Months Ended September 30,
	2017			2016			2017			2016
Sales:	($ in millions)
Chlor Alkali Products and Vinyls	$	881.2		$	779.4		$	2,583.2		$	2,216.7
Epoxy	489.9			470.1			1,549.5			1,380.3
Winchester	183.8			203.2			515.8			567.9
Total sales	$	1,554.9		$	1,452.7		$	4,648.5		$	4,164.9
Income (loss) before taxes:
Chlor Alkali Products and Vinyls	$	129.7		$	53.7		$	270.0		$	152.5
Epoxy	(1.7		)	10.3			(11.0		)	18.5
Winchester	17.2			36.0			61.3			95.9
Corporate/other:
Pension income	11.1			15.4			32.1			40.2
Environmental expense	(1.8		)	(0.4		)	(6.2		)	(5.5		)
Other corporate and unallocated costs	(31.1		)	(28.2		)	(94.2		)	(81.7		)
Restructuring charges	(9.2		)	(5.2		)	(25.9		)	(106.2		)
Acquisition-related costs	(1.1		)	(13.1		)	(12.5		)	(39.6		)
Other operating (expense) income	—			(0.2		)	(0.1		)	10.5
Interest expense	(53.1		)	(47.5		)	(158.0		)	(143.6		)
Interest income	0.4			0.5			1.0			1.3
Income (loss) before taxes	$	60.4		$	21.3		$	56.5		$	(57.7	)