OTHER ASSETS (Tables)

9 Months Ended

Sep. 30, 2017

Other Assets [Abstract]

Schedule of Other Assets

Included in other assets were the following:

	September 30, 2017		December 31, 2016		September 30, 2016
	($ in millions)
Investments in non-consolidated affiliates	$	28.2	$	26.7	$	26.1
Deferred debt issuance costs	2.7		2.6		2.8
Tax-related receivables	13.1		17.5		15.8
Interest rate swaps	3.7		7.7		2.5
Supply contracts	1,146.3		566.7		572.8
Other	21.6		23.2		20.3
Other assets	$	1,215.6	$	644.4	$	640.3