Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
DISCONTINUED OPERATIONS (Schedule of Disposal Groups, including Discontinued Operations, Income Statement) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX $ (64.3) $ (53.7) $ (135.2) $ (5.0)
Asia Pacific Iron Ore [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Revenues from product sales and services 70.1 98.0 129.1 273.4
Cost of goods sold and operating expenses 106.1 97.1 230.2 225.2
Sales margin (36.0) 0.9 (101.1) 48.2
Other operating expense (16.2) (3.2) (18.8) (3.7)
Other expense (1.1) (1.3) (2.2) (2.7)
Loss from discontinued operations before income taxes (53.3) (3.6) (122.1) 41.8
Impairment of long-lived assets 0.0 0.0 (2.6) 0.0
Income tax expense 0.0 (3.7) 0.0 (0.8)
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAX $ (53.3) $ (7.3) $ (124.7) $ 41.0