INVESTMENTS-AFFILIATED COMPANIES (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Investment in non-consolidated equity affiliates

	December 31,
	2012		2011
	($ in millions)
Bay Gas	$	19.5	$	17.1
Bleach joint venture	9.8		10.5
Investments in equity affiliates	$	29.3	$	27.6

Summary of equity earnings of non-consolidated affiliates

The following table summarizes our equity earnings of non-consolidated affiliates:

	Years Ended December 31,
	2012		2011		2010
	($ in millions)
SunBelt	$	—	$	6.3	$	26.6
Bay Gas	2.4		2.4		2.2
Bleach joint venture	0.6		0.9		1.1
Equity earnings of non-consolidated affiliates	$	3.0	$	9.6	$	29.9