OTHER ASSETS (Tables)

6 Months Ended

Jun. 30, 2017

Other Assets [Abstract]

Schedule of Other Assets

Included in other assets were the following:

	June 30, 2017		December 31, 2016		June 30, 2016
	($ in millions)
Investments in non-consolidated affiliates	$	27.7	$	26.7	$	25.6
Deferred debt issuance costs	2.8		2.6		2.9
Tax-related receivables	16.0		17.5		18.2
Interest rate swaps	4.7		7.7		3.7
Supply contracts	554.1		566.7		518.8
Other	20.3		23.2		19.4
Other assets	$	625.6	$	644.4	$	588.6