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Guarantor Financial Statements (Unaudited) Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017
--- | --- | --- | ---
ASSETS |  |  |
Current assets, other than assets held-for-sale | $ 10,106 | $ 10,779 |
Property, plant, equipment and mine development costs, net | 22,792 | 22,844 |
Investments in consolidated subsidiaries | 0 | 0 |
Other assets | 3,739 | 3,679 |
Total assets | 36,637 | 37,302 | $ 36,576
LIABILITIES AND EQUITY |  |  |
Current liabilities, other than liabilities held for sale | 4,344 | 5,038 |
Long-term debt, less current portion | 11,123 | 11,703 |
Deferred income taxes | 3,642 | 3,622 |
Environmental and asset retirement obligations, less current portion | 3,630 | 3,631 |
Investments in consolidated subsidiaries | 0 | 0 |
Other liabilities | 1,972 | 2,012 |
Total liabilities | 24,711 | 26,006 |
Equity: |  |  |
Stockholders' equity | 8,656 | 7,977 |
Noncontrolling interests | 3,270 | 3,319 |
Total equity | 11,926 | 11,296 |
Total liabilities and equity | 36,637 | 37,302 |
Eliminations [Member] |  |  |
ASSETS |  |  |
Current assets, other than assets held-for-sale | (1,164) | (790) |
Property, plant, equipment and mine development costs, net | (9) | (10) |
Investments in consolidated subsidiaries | (18,668) | (19,570) |
Other assets | (111) | (491) |
Total assets | (19,952) | (20,861) |
LIABILITIES AND EQUITY |  |  |
Current liabilities, other than liabilities held for sale | (1,225) | (938) |
Long-term debt, less current portion | (10,058) | (10,270) |
Deferred income taxes | 0 | 0 |
Environmental and asset retirement obligations, less current portion | 0 | 0 |
Investments in consolidated subsidiaries | (11,198) | (11,250) |
Other liabilities | (3,486) | (3,488) |
Total liabilities | (25,967) | (25,946) |
Equity: |  |  |
Stockholders' equity | 5,437 | 4,480 |
Noncontrolling interests | 578 | 605 |
Total equity | 6,015 | 5,085 |
Total liabilities and equity | (19,952) | (20,861) |
FCX Issuer [Member] | Reportable Legal Entities [Member] |  |  |
ASSETS |  |  |
Current assets, other than assets held-for-sale | 544 | 75 |
Property, plant, equipment and mine development costs, net | 14 | 14 |
Investments in consolidated subsidiaries | 18,668 | 19,570 |
Other assets | 561 | 943 |
Total assets | 19,787 | 20,602 |
LIABILITIES AND EQUITY |  |  |
Current liabilities, other than liabilities held for sale | 621 | 1,683 |
Long-term debt, less current portion | 9,594 | 10,021 |
Deferred income taxes | 745 | 748 |
Environmental and asset retirement obligations, less current portion | 0 | 0 |
Investments in consolidated subsidiaries | 0 | 0 |
Other liabilities | 171 | 173 |
Total liabilities | 11,131 | 12,625 |
Equity: |  |  |
Stockholders' equity | 8,656 | 7,977 |
Noncontrolling interests | 0 | 0 |
Total equity | 8,656 | 7,977 |
Total liabilities and equity | 19,787 | 20,602 |
FM O&G LLC Guarantor [Member] | Reportable Legal Entities [Member] |  |  |
ASSETS |  |  |
Current assets, other than assets held-for-sale | 714 | 671 |
Property, plant, equipment and mine development costs, net | 7 | 11 |
Investments in consolidated subsidiaries | 0 | 0 |
Other assets | 34 | 48 |
Total assets | 755 | 730 |
LIABILITIES AND EQUITY |  |  |
Current liabilities, other than liabilities held for sale | 117 | 220 |
Long-term debt, less current portion | 6,574 | 6,512 |
Deferred income taxes | 0 | 0 |
Environmental and asset retirement obligations, less current portion | 203 | 201 |
Investments in consolidated subsidiaries | 860 | 853 |
Other liabilities | 3,339 | 3,340 |
Total liabilities | 11,093 | 11,126 |
Equity: |  |  |
Stockholders' equity | (10,338) | (10,396) |
Noncontrolling interests | 0 | 0 |
Total equity | (10,338) | (10,396) |
Total liabilities and equity | 755 | 730 |
Non-Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member] |  |  |
ASSETS |  |  |
Current assets, other than assets held-for-sale | 10,012 | 10,823 |
Property, plant, equipment and mine development costs, net | 22,780 | 22,829 |
Investments in consolidated subsidiaries | 0 | 0 |
Other assets | 3,255 | 3,179 |
Total assets | 36,047 | 36,831 |
LIABILITIES AND EQUITY |  |  |
Current liabilities, other than liabilities held for sale | 4,831 | 4,073 |
Long-term debt, less current portion | 5,013 | 5,440 |
Deferred income taxes | 2,897 | 2,874 |
Environmental and asset retirement obligations, less current portion | 3,427 | 3,430 |
Investments in consolidated subsidiaries | 10,338 | 10,397 |
Other liabilities | 1,948 | 1,987 |
Total liabilities | 28,454 | 28,201 |
Equity: |  |  |
Stockholders' equity | 4,901 | 5,916 |
Noncontrolling interests | 2,692 | 2,714 |
Total equity | 7,593 | 8,630 |
Total liabilities and equity | $ 36,047 | $ 36,831 |

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