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RELATED PARTIES (Tables) | 6 Months Ended
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Jun. 30, 2016
Related Party Transactions [Abstract] |
Summary Of Other Ownership Interests | The following is a summary of the mine ownership of these iron ore mines at June 30, 2016:
Mine |  | Cliffs Natural Resources |  | ArcelorMittal |  | U.S. Steel Corporation
Empire |  | 79.0 | % |  | 21.0 | % |  | — |
Tilden |  | 85.0 | % |  | — |  |  | 15.0 | %
Hibbing |  | 23.0 | % |  | 62.3 | % |  | 14.7 | %
Summary Of Related Party Transactions Table Disclosure | Product revenues from related parties were as follows:
| (In Millions)
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Product revenues from related parties | $ | 241.6 |  |  | $ | 149.6 |  |  | $ | 345.0 |  |  | $ | 260.0 |
Total product revenues | 452.8 |  |  | 454.3 |  |  | 728.4 |  |  | 857.4 |
Related party product revenue as a percent of total product revenue | 53.4 | % |  | 32.9 | % |  | 47.4 | % |  | 30.3 | %

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- Definition Tabular disclosure of other units or shares or classes of ownership in a partnership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 2: http://www.xbrl.org/2003/role/presentationRef -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 3: http://www.xbrl.org/2003/role/presentationRef -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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