Quarterly report pursuant to Section 13 or 15(d)

DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Income Statement - Canadian Entities (Details)

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DISCONTINUED OPERATIONS Schedule of Disposal Groups, including Discontinued Operations, Income Statement - Canadian Entities (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Schedule of Disposal Groups, including Discontinued Operations, Income Statement [Line Items]        
Deconsolidation, Gain (Loss), Amount       $ 528.2
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX $ (2.7) $ (43.9) $ (0.6) (869.0)
Canadian Entities [Member]        
Schedule of Disposal Groups, including Discontinued Operations, Income Statement [Line Items]        
Disposal Group, Including Discontinued Operation, Revenue 0.0 0.0 0.0 11.3
Disposal Group, Including Discontinued Operation, Costs of Goods Sold 0.0 0.0 0.0 (11.1)
Disposal Group, Including Discontinued Operation, Gross Profit (Loss) 0.0 0.0 0.0 0.2
Disposal Group, Including Discontinued Operation, Operating Expense 0.0 0.0 0.0 (33.8)
Disposal Group, Including Discontinued Operation, Other Expense 0.0 0.0 0.0 (1.0)
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax 0.0 0.0 0.0 (34.6)
Deconsolidation, Gain (Loss), Amount (0.9) (13.4) 3.2 (697.4)
Discontinued Operation, Tax Effect of Discontinued Operation 0.0 0.7 0.0 0.0
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX (0.9) (14.1) 3.2 (732.0)
Contingent Liabilities of Deconsolidated Entities 0.0 (0.5) 0.0 203.1
Cost Method Investments 0.0   0.0  
North American Coal [Member]        
Schedule of Disposal Groups, including Discontinued Operations, Income Statement [Line Items]        
Disposal Group, Including Discontinued Operation, Revenue 0.0 78.8 0.0 338.1
Disposal Group, Including Discontinued Operation, Costs of Goods Sold 0.0 (102.9) 0.0 (377.2)
Disposal Group, Including Discontinued Operation, Gross Profit (Loss) 0.0 (24.1) 0.0 (39.1)
Disposal Group, Including Discontinued Operation, Operating Expense (1.8) (7.4) (3.8) (25.7)
Disposal Group, Including Discontinued Operation, Other Expense 0.0 (0.4) 0.0 (1.4)
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax (1.8) (31.9) (3.8) (66.2)
Discontinued Operation, Tax Effect of Discontinued Operation 0.0 2.1 0.0 2.6
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX $ (1.8) $ (29.8) $ (3.8) $ (137.0)