Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING (Schedule Of Segment Reporting Information, By Segment) (Details)

v3.7.0.1
SEGMENT REPORTING (Schedule Of Segment Reporting Information, By Segment) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Segment Reporting Information [Line Items]    
Revenues from producet sales and services, percent 100.00% 100.00%
Revenues from product sales and services $ 461.6 $ 305.5
Sales margin 95.7 30.9
Other operating expense (13.8) (31.2)
Other income (expense) (114.0) 122.1
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest (32.1) 121.8
Net Income (Loss) (29.8) 116.8
Interest expense, net (42.8) (56.8)
Income tax benefit (expense) 1.8 (7.6)
Depreciation, depletion and amortization 23.2 35.2
EBITDA 34.4 216.4
Gain (loss) on extinguishment/restructuring of debt (71.9) 178.8
Adjusted EBITDA 92.2 36.3
Property, Plant and Equipment, Additions 27.3 6.8
Payments To Acquire Property Plant And Equipment Net 27.9 10.4
Capital Expenditures Incurred but Not yet Paid $ (0.6) $ (3.6)
U.S. Iron Ore [Member]    
Segment Reporting Information [Line Items]    
Revenues from producet sales and services, percent 62.00% 61.00%
Revenues from product sales and services $ 286.2 $ 185.5
Sales margin 48.4 13.2
Depreciation, depletion and amortization 16.4 26.9
EBITDA 57.9 41.4
Adjusted EBITDA 64.1 46.1
Property, Plant and Equipment, Additions $ 27.1 $ 4.5
Asia Pacific Iron Ore [Member]    
Segment Reporting Information [Line Items]    
Revenues from producet sales and services, percent 38.00% 39.00%
Revenues from product sales and services $ 175.4 $ 120.0
Sales margin 47.3 17.7
Depreciation, depletion and amortization 4.7 6.8
EBITDA 51.4 22.3
Adjusted EBITDA 53.8 23.0
Property, Plant and Equipment, Additions 0.2 0.0
All Other Segments [Member]    
Segment Reporting Information [Line Items]    
Depreciation, depletion and amortization 2.1 1.5
EBITDA (74.9) 152.7
Adjusted EBITDA (25.7) (32.8)
Property, Plant and Equipment, Additions 0.0 2.3
EBITDA Calculation [Member]    
Segment Reporting Information [Line Items]    
Depreciation, depletion and amortization 23.2 35.2
Adjusted EBITDA Calculation [Member]    
Segment Reporting Information [Line Items]    
Impact of discontinued operations 0.5 2.6
Severance and contractor termination costs 0.0 (0.1)
Foreign exchange remeasurement $ 13.6 $ (1.2)