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DISCONTINUED OPERATIONS (Tables) | 12 Months Ended
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Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract] |
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block] | The charts below provide an asset group breakout for each financial statement line impacted by discontinued operations.
|  | (In Millions)
|  | Year Ended December 31,
|  | 2018 |  | 2017 |  | 2016
Income (loss) from discontinued operations, net of tax |  |  |  |  |  |
Asia Pacific Iron Ore |  | $ | 118.3 |  |  | $ | 21.2 |  |  | $ | 96.6 |
North American Coal |  | (3.6 | ) |  | 2.6 |  |  | (2.4 | )
Canadian Operations |  | (26.5 | ) |  | (21.3 | ) |  | (17.5 | )
|  | $ | 88.2 |  |  | $ | 2.5 |  |  | $ | 76.7 |
|  | (In Millions)
|  | December 31, 2018 |  | December 31, 2017
|  | Asia Pacific Iron Ore |  | North American Coal |  | Total |  | Asia Pacific Iron Ore |  | North American Coal |  | Total
Current assets of discontinued operations |  | $ | 12.4 |  |  | $ | — |  |  | $ | 12.4 |  |  | $ | 118.5 |  |  | $ | — |  |  | $ | 118.5 |
Non-current assets of discontinued operations |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 20.3 |  |  | $ | — |  |  | $ | 20.3 |
Current liabilities of discontinued operations |  | $ | 3.8 |  |  | $ | 2.9 |  |  | $ | 6.7 |  |  | $ | 71.8 |  |  | $ | 3.2 |  |  | $ | 75.0 |
Non-current liabilities of discontinued operations |  | $ | 8.3 |  |  | $ | — |  |  | $ | 8.3 |  |  | $ | 52.2 |  |  | $ | — |  |  | $ | 52.2 |
|  | (In Millions)
|  | Year Ended December 31,
|  | 2018 |  | 2017 |  | 2016
Net cash provided (used) by operating activities |  |  |  |  |  |
Asia Pacific Iron Ore |  | $ | (81.3 | ) |  | $ | 79.6 |  |  | $ | 99.8 |
Canadian Operations |  | (14.6 | ) |  | — |  |  | — |
|  | $ | (95.9 | ) |  | $ | 79.6 |  |  | $ | 99.8 |
Net cash provided (used) by investing activities |  |  |  |  |  |
Asia Pacific Iron Ore |  | $ | 19.8 |  |  | $ | (2.8 | ) |  | $ | (0.4 | )
Canadian Operations |  | — |  |  | (7.7 | ) |  | 6.8 |
North American Coal |  | — |  |  | 2.1 |  |  | 3.6 |
|  | $ | 19.8 |  |  | $ | (8.4 | ) |  | $ | 10.0 |
Schedule of Disposal Groups, including Discontinued Operations, Income Statement [Table Text Block] | For the reasons discussed above, our previously reported Asia Pacific Iron Ore operating segment results for all periods presented, as well as exit costs, are classified as discontinued operations.
|  | (In Millions)
|  | Year Ended December 31,
Income from Discontinued Operations |  | 2018 |  | 2017 |  | 2016
Revenues from product sales and services |  | $ | 129.1 |  |  | $ | 464.2 |  |  | $ | 554.5 |
Cost of goods sold and operating expenses |  | (230.7 | ) |  | (427.9 | ) |  | (440.9 | )
Sales margin |  | (101.6 | ) |  | 36.3 |  |  | 113.6 |
Other operating expense |  | (3.3 | ) |  | (9.9 | ) |  | (10.4 | )
Other expense |  | (2.3 | ) |  | (5.2 | ) |  | (6.6 | )
Gain on foreign currency translation |  | 228.1 |  |  | — |  |  | — |
Impairment of long-lived assets |  | (2.6 | ) |  | — |  |  | — |
Income from discontinued operations, net of tax |  | $ | 118.3 |  |  | $ | 21.2 |  |  | $ | 96.6 |
Schedule of Disposal Groups, Including Discontinued Operations, Assets and Liabilities [Table Text Block] | Recorded Assets and Liabilities
|  | (In Millions)
Assets and Liabilities of Discontinued Operations |  | December 31, 2018 |  | December 31, 2017
Cash and cash equivalents |  | $ | 12.4 |  |  | $ | 29.4 |
Accounts receivable, net |  | — |  |  | 33.9 |
Inventories |  | — |  |  | 45.0 |
Supplies and other inventories |  | — |  |  | 5.1 |
Other current assets |  | — |  |  | 5.1 |
Total current assets of discontinued operations |  | 12.4 |  |  | 118.5 |
Property, plant and equipment, net |  | — |  |  | 17.2 |
Other non-current assets |  | — |  |  | 3.1 |
Total assets of discontinued operations |  | $ | 12.4 |  |  | $ | 138.8 |
Accounts payable |  | $ | 3.4 |  |  | $ | 28.2 |
Accrued liabilities |  | 0.4 |  |  | 28.0 |
Other current liabilities |  | — |  |  | 15.6 |
Total current liabilities of discontinued operations |  | 3.8 |  |  | 71.8 |
Environmental and mine closure obligations |  | — |  |  | 28.8 |
Other liabilities |  | 8.3 |  |  | 23.4 |
Total liabilities of discontinued operations |  | $ | 12.1 |  |  | $ | 124.0 |
PreTax Exit Costs [Table Text Block] | The chart below provides a breakout of loss from deconsolidation:
|  | (In Millions)
|  | Year Ended December 31,
|  | 2018 |  | 2017 |  | 2016
Investment impairment on deconsolidation 1 |  | $ | (67.5 | ) |  | $ | 3.0 |  |  | $ | (17.5 | )
Guarantees and contingent liabilities |  | 41.0 |  |  | (24.3 | ) |  | — |
Total loss from deconsolidation |  | $ | (26.5 | ) |  | $ | (21.3 | ) |  | $ | (17.5 | )
1 Includes the adjustments to fair value of our remaining interest in the Canadian Entities for the years ended December 31, 2018, 2017 and 2016, and a tax expense resulting from the implementation of the Amended Plan for the year ended December 31, 2018.

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