v3.2.0.727

GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	$ 1,255.4		$ 1,255.4		$ 1,255.4
Accumulated impairment charges			(2.9)		(2.6)
Accumulated amortization:	(185.8)		(185.8)		(152.0)
Foreign currency translation adjustment:			(14.2)		(14.2)
Net carrying amounts	1,052.5		1,052.5		1,086.6
Amortization expense for the definite-lived intangible assets	16.7	$ 16.8	33.3	$ 33.6
Total definite-lived intangible asset estimated annual amortization expense for the next five fiscal years
Year one	66.4		66.4
Year two	66.4		66.4
Year three	66.4		66.4
Year four	66.4		66.4
Year five	66.4		66.4
Customer relationships
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	1,174.5		1,174.5		1,174.5
Accumulated impairment charges			(2.9)		(2.6)
Accumulated amortization:	(164.8)		(164.8)		(133.2)
Foreign currency translation adjustment:			(14.2)		(14.2)
Net carrying amounts	992.6		$ 992.6		1,024.5
Customer relationships | Weighted average
Changes made to finite-lived intangible assets by reportable segment
Weighted average estimated useful life			16 years
Supply contracts
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	42.6		$ 42.6		42.6
Accumulated amortization:	(5.1)		(5.1)		(4.1)
Net carrying amounts	37.5		$ 37.5		38.5
Supply contracts | Weighted average
Changes made to finite-lived intangible assets by reportable segment
Weighted average estimated useful life			18 years
Technology
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	32.3		$ 32.3		32.3
Accumulated amortization:	(15.0)		(15.0)		(14.0)
Net carrying amounts	17.3		$ 17.3		18.3
Technology | Weighted average
Changes made to finite-lived intangible assets by reportable segment
Weighted average estimated useful life			16 years
Trade names
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	6.0		$ 6.0		6.0
Accumulated amortization:	(0.9)		(0.9)		(0.7)
Net carrying amounts	5.1		$ 5.1		5.3
Trade names | Weighted average
Changes made to finite-lived intangible assets by reportable segment
Weighted average estimated useful life			15 years
Chlorovinyls
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	1,205.8		$ 1,205.8		1,205.8
Accumulated impairment charges			(2.9)		(2.6)
Accumulated amortization:	(159.5)		(159.5)		(127.2)
Foreign currency translation adjustment:			(14.2)		(14.2)
Net carrying amounts	1,029.2		1,029.2		1,061.8
Chlorovinyls | Customer relationships
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	1,142.3		1,142.3		1,142.3
Accumulated impairment charges			(2.9)		(2.6)
Accumulated amortization:	(151.9)		(151.9)		(121.1)
Foreign currency translation adjustment:			(14.2)		(14.2)
Net carrying amounts	973.3		973.3		1,004.4
Chlorovinyls | Supply contracts
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	42.6		42.6		42.6
Accumulated amortization:	(5.1)		(5.1)		(4.1)
Net carrying amounts	37.5		37.5		38.5
Chlorovinyls | Technology
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	14.9		14.9		14.9
Accumulated amortization:	(1.6)		(1.6)		(1.3)
Net carrying amounts	13.3		13.3		13.6
Chlorovinyls | Trade names
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	6.0		6.0		6.0
Accumulated amortization:	(0.9)		(0.9)		(0.7)
Net carrying amounts	5.1		5.1		5.3
Building Products
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	49.6		49.6		49.6
Accumulated amortization:	(26.3)		(26.3)		(24.8)
Net carrying amounts	23.3		23.3		24.8
Building Products | Customer relationships
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	32.2		32.2		32.2
Accumulated amortization:	(12.9)		(12.9)		(12.1)
Net carrying amounts	19.3		19.3		20.1
Building Products | Technology
Changes made to finite-lived intangible assets by reportable segment
Gross carrying amounts	17.4		17.4		17.4
Accumulated amortization:	(13.4)		(13.4)		(12.7)
Net carrying amounts	$ 4.0		$ 4.0		$ 4.7
Compound and Siding reporting unit | Minimum
Changes made to finite-lived intangible assets by reportable segment
Percentage that estimated fair values exceeded carrying values for the reporting unit	10.00%		10.00%
Chloralkali and Derivatives reporting unit | Maximum
Changes made to finite-lived intangible assets by reportable segment
Percentage that estimated fair values exceeded carrying values for the reporting unit	10.00%		10.00%

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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