INVESTMENTS-AFFILIATED COMPANIES (Tables)

12 Months Ended

Dec. 31, 2015

Equity Method Investments and Joint Ventures [Abstract]

Investment in non-consolidated equity affiliates

The following table summarizes our investment in our non-consolidated equity affiliate:

	December 31,
	2015		2014
	($ in millions)
Bay Gas	$	25.0	$	23.3

Summary of equity earnings of non-consolidated affiliates

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

	Years Ended December 31,
	2015		2014		2013
	($ in millions)
Bay Gas	$	1.7	$	1.7	$	2.1
Bleach joint venture	—		—		0.7
Equity earnings of non-consolidated affiliates	$	1.7	$	1.7	$	2.8