Quarterly report pursuant to Section 13 or 15(d)

DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Assets and Liabilities - North American Coal (Details)

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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
Sep. 30, 2016
Dec. 31, 2015
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Line Items]    
Disposal Group, Including Discontinued Operation, Other Assets, Current $ 0.0 $ 14.9
Assets of Discontinued Operations 0.0 14.9
Disposal Group, Including Discontinued Operation, Accrued Liabilities 1.2 0.0
Disposal Group, Including Discontinued Operation, Other Liabilities, Current 4.3 6.9
Disposal Group, Including Discontinued Operation, Liabilities $ 5.5 $ 6.9