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DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Assets and Liabilities - North American Coal (Details) - North American Coal [Member] - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
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Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items] |  |
Disposal Group, Including Discontinued Operation, Other Assets, Current | $ 0.5 | $ 14.9
Assets of Discontinued Operations | 0.5 | 14.9
Disposal Group, Including Discontinued Operation, Accrued Liabilities | 0.1 | 0.0
Disposal Group, Including Discontinued Operation, Other Liabilities, Current | 4.2 | 6.9
Disposal Group, Including Discontinued Operation, Liabilities | $ 4.3 | $ 6.9

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- Definition Amount classified as assets attributable to disposal group held for sale or disposed of. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=51716988&loc=d3e1107-107759 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=51717284&loc=SL51721673-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=51716988&loc=SL51721533-107759 + Details
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