LEASE OBLIGATIONS (Future Minimum Lease Payments) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Capital Leases
2015 (April 1 - December 31)	$ 20.5
2016	25.8
2017	22.8
2018	18.4
2019	10.0
2020 and thereafter	18.8
Total minimum lease payments	116.3
Amounts representing interest	25.1
Present value of net minimum lease payments	91.2	[1]
Operating Leases
2015 (April 1 - December 31)	7.5
2016	7.9
2017	7.3
2018	6.6
2019	4.8
2020 and thereafter	9.9
Total minimum lease payments	44.0
Other Current Liabilities [Member]
Capital Leases
Present value of net minimum lease payments	19.5
Other Liabilities [Member]
Capital Leases
Present value of net minimum lease payments	$ 71.7

[1] The total is comprised of $19.5 million and $71.7 million classified as Other current liabilities and Other liabilities, respectively, in the Statements of Unaudited Condensed Consolidated Financial Position at March 31, 2015.