SEGMENT INFORMATION (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Segment Information

	Years ended December 31,
	2019			2018			2017
Sales:	($ in millions)
Chlor Alkali Products and Vinyls	$	3,420.1		$	3,986.7		$	3,500.8
Epoxy	2,024.4			2,303.1			2,086.4
Winchester	665.5			656.3			681.2
Total sales	$	6,110.0		$	6,946.1		$	6,268.4
Income (loss) before taxes:
Chlor Alkali Products and Vinyls	$	336.7		$	637.1		$	405.8
Epoxy	53.9			52.8			(11.8		)
Winchester	40.1			38.4			72.4
Corporate/Other:
Environmental (expense) income	(20.5		)	103.7			(8.5		)
Other corporate and unallocated costs	(156.3		)	(158.3		)	(112.4		)
Restructuring charges	(76.5		)	(21.9		)	(37.6		)
Acquisition-related costs	—			(1.0		)	(12.8		)
Other operating income	0.4			6.4			3.3
Interest expense	(243.2		)	(243.2		)	(217.4		)
Interest income	1.0			1.6			1.8
Non-operating pension income	16.3			21.7			34.4
Other income	11.2			—			—
Income (loss) before taxes	$	(36.9	)	$	437.3		$	117.2
Earnings (losses) of non-consolidated affiliates:
Chlor Alkali Products and Vinyls	$	—		$	(19.7	)	$	1.8
Depreciation and amortization expense:
Chlor Alkali Products and Vinyls	$	470.4		$	473.1		$	432.2
Epoxy	100.1			102.4			94.3
Winchester	20.1			20.0			19.5
Corporate/Other	6.8			5.9			12.9
Total depreciation and amortization expense	$	597.4		$	601.4		$	558.9
Capital spending:
Chlor Alkali Products and Vinyls	$	240.3		$	259.9		$	209.5
Epoxy	30.0			36.3			37.9
Winchester	12.1			14.7			22.5
Corporate/Other	103.2			74.3			24.4
Total capital spending	$	385.6		$	385.2		$	294.3

Segment assets include only those assets which are directly identifiable to an operating segment.  Assets of the corporate/other segment include primarily such items as cash and cash equivalents, deferred taxes and other assets.

	December 31,
	2019		2018
Assets:	($ in millions)
Chlor Alkali Products and Vinyls	$	6,898.7	$	6,837.2
Epoxy	1,469.1		1,521.9
Winchester	385.0		399.9
Corporate/Other	435.0		238.4
Total assets	$	9,187.8	$	8,997.4
Investments—affiliated companies (at equity):
Chlor Alkali Products and Vinyls	$	—	$	8.8

Segment geographic data

Long-lived assets are attributed to geographic areas based on asset location and sales are attributed to geographic areas based on customer location.

	December 31,
	2019		2018
Long-lived assets:	($ in millions)
United States	$	3,017.4	$	3,147.6
Foreign	306.4		334.5
Total long-lived assets	$	3,323.8	$	3,482.1

Disaggregation of Revenue

	Years ended December 31,
	2019		2018		2017
Sales by geography:	($ in millions)
Chlor Alkali Products and Vinyls
United States	$	2,332.1	$	2,610.7	$	2,294.4
Europe	134.5		181.8		130.1
Other foreign	953.5		1,194.2		1,076.3
Total Chlor Alkali Products and Vinyls	3,420.1		3,986.7		3,500.8
Epoxy
United States	664.0		742.7		646.5
Europe	844.2		991.1		940.8
Other foreign	516.2		569.3		499.1
Total Epoxy	2,024.4		2,303.1		2,086.4
Winchester
United States	603.4		591.0		615.2
Europe	11.7		11.0		11.6
Other foreign	50.4		54.3		54.4
Total Winchester	665.5		656.3		681.2
Total
United States	3,599.5		3,944.4		3,556.1
Europe	990.4		1,183.9		1,082.5
Other foreign	1,520.1		1,817.8		1,629.8
Total sales	$	6,110.0	$	6,946.1	$	6,268.4

	Years ended December 31,
	2019		2018		2017
Sales by product line:	($ in millions)
Chlor Alkali Products and Vinyls
Caustic soda	$	1,737.4	$	2,198.6	$	1,904.3
Chlorine, chlorine derivatives and other co-products	1,682.7		1,788.1		1,596.5
Total Chlor Alkali Products and Vinyls	3,420.1		3,986.7		3,500.8
Epoxy
Aromatics and allylics	945.3		1,145.7		1,051.1
Epoxy resins	1,079.1		1,157.4		1,035.3
Total Epoxy	2,024.4		2,303.1		2,086.4
Winchester
Commercial	441.3		427.6		471.0
Military and law enforcement	224.2		228.7		210.2
Total Winchester	665.5		656.3		681.2
Total sales	$	6,110.0	$	6,946.1	$	6,268.4