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RELATED PARTIES (Tables) | 12 Months Ended
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Dec. 31, 2018
Related Party Transactions [Abstract] |
Summary Of Other Ownership Interests | The following is a summary of the mine ownership of the co-owned iron ore mine at December 31, 2018:
Mine |  | Cleveland-Cliffs Inc. |  | ArcelorMittal |  | U.S. Steel
Hibbing |  | 23.0% |  | 62.3% |  | 14.7%
Summary Of Related Party Transactions Table Disclosure | Product revenues from related parties were as follows:
| (In Millions)
| Year Ended December 31,
| 2018 |  | 2017 |  | 2016
Product revenues from related parties | $ | 1,234.5 |  |  | $ | 806.7 |  |  | $ | 830.1 |
Total product revenues | $ | 2,172.3 |  |  | $ | 1,644.6 |  |  | $ | 1,379.7 |
Related party product revenue as a percent of total product revenue | 56.8 | % |  | 49.1 | % |  | 60.2 | %
Summary of Balance Sheet Presentation [Table Text Block] | The following table presents the classification of related party assets and liabilities in the Statements of Consolidated Financial Position:
|  | (In Millions)
Balance Sheet Location |  | December 31, 2018 |  | December 31, 2017
Accounts receivable, net |  | $ | 176.0 |  |  | $ | 68.1 |
Derivative assets |  | 89.3 |  |  | 37.9 |
Partnership distribution payable |  | (43.5 | ) |  | (44.2 | )
Other current liabilities |  | (1.8 | ) |  | (12.3 | )
Other liabilities |  | — |  |  | (41.4 | )
|  | $ | 220.0 |  |  | $ | 8.1 |

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- Definition Tabular disclosure of other units or shares or classes of ownership in a partnership. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 + Details
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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
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