GOODWILL AND INTANGIBLES (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying value of goodwill were as follows:

	Chlor Alkali Products and Vinyls			Epoxy			Total
	($ in millions)
Balance at January 1, 2019	$	1,832.6		$	287.0		$	2,119.6
Foreign currency translation adjustment	(0.4		)	(0.1		)	(0.5		)
Balance at September 30, 2019	$	1,832.2		$	286.9		$	2,119.1
Balance at January 1, 2020	$	1,832.7		$	287.0		$	2,119.7
Goodwill impairment	(557.6		)	(142.2		)	(699.8		)
Foreign currency translation adjustment	0.2			—			0.2
Balance at September 30, 2020	$	1,275.3		$	144.8		$	1,420.1

Schedule of Finite-Lived Intangible Assets

Intangible assets consisted of the following:

	September 30, 2020							December 31, 2019							September 30, 2019
	Gross Amount		Accumulated Amortization			Net		Gross Amount		Accumulated Amortization			Net		Gross Amount		Accumulated Amortization			Net
	($ in millions)
Customers, customer contracts and relationships	$	676.5	$	(299.2	)	$	377.3	$	673.5	$	(260.9	)	$	412.6	$	671.1	$	(248.0	)	$	423.1
Trade name	7.1		(7.1		)	—		7.0		(6.0		)	1.0		7.0		(5.6		)	1.4
Acquired technology	87.7		(61.3		)	26.4		85.1		(51.8		)	33.3		84.7		(48.5		)	36.2
Other	1.8		(0.6		)	1.2		1.8		(0.6		)	1.2		1.8		(0.6		)	1.2
Total intangible assets	$	773.1	$	(368.2	)	$	404.9	$	767.4	$	(319.3	)	$	448.1	$	764.6	$	(302.7	)	$	461.9