OTHER ASSETS (Tables)

3 Months Ended

Mar. 31, 2019

Other Assets [Abstract]

Schedule of Other Assets

Included in other assets were the following:

	March 31, 2019		December 31, 2018		March 31, 2018
	($ in millions)
Supply contracts	$	1,090.1	$	1,099.5	$	1,127.7
Investments in non-consolidated affiliates	—		8.8		29.0
Other	41.3		42.1		40.3
Other assets	$	1,131.4	$	1,150.4	$	1,197.0