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Guarantor Financial Statements (Unaudited) Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Millions | Sep. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015
--- | --- | --- | ---
ASSETS |  |  |  |  |  |
Current Assets, other than assets held for sale |  | $ 6,842 |  | $ 6,718 |  |
Current assets held for sale |  | 4,663 |  | 744 | $ 4,868 |
Property, plant, equipment and mining development costs, net |  | 23,415 |  | 24,246 |  |
Oil and gas properties, net - full cost method |  |  |  |  |  |
Subject to amortization, less accumulated amortization and impairment |  | 979 |  | 2,262 |  |
Not subject to amortization |  | 1,644 |  | 4,831 |  |
Investments in consolidated subsidiaries |  | 0 |  | 0 |  |
Other assets |  | 3,857 |  | 3,652 |  |
Assets held for sale |  | 0 |  | 4,124 |  |
Total assets |  | 41,400 | [1] | 46,577 | $ 50,383 | [1]
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities, other than liabilities held for sale |  | 3,667 |  | 4,199 |  |
Current liabilities held for sale |  | 821 |  | 108 |  |
Long-term debt, less current portion |  | 18,180 |  | 19,779 |  |
Deferred income taxes |  | 3,549 |  | 3,607 |  |
Environmental and asset retirement obligations, less current portion |  | 3,725 |  | 3,717 |  |
Investments in consolidated subsidiaries |  | 0 |  | 0 |  |
Other liabilities |  | 1,618 |  | 1,641 |  |
Liabilities held for sale |  | 0 |  | 718 |  |
Total liabilities |  | 31,560 |  | 33,769 |  |
Redeemable noncontrolling interest |  | 774 |  | 764 |  |
Equity: |  |  |  |  |  |
Stockholders' equity |  | 4,732 |  | 7,828 |  |
Noncontrolling interests |  | 4,334 |  | 4,216 |  |
Total equity |  | 9,066 |  | 12,044 |  |
Total liabilities and equity |  | 41,400 |  | 46,577 |  |
FCX Issuer [Member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets, other than assets held for sale |  | 320 |  | 181 |  |
Current assets held for sale |  | 0 |  | 0 |  |
Property, plant, equipment and mining development costs, net |  | 22 |  | 26 |  |
Oil and gas properties, net - full cost method |  |  |  |  |  |
Subject to amortization, less accumulated amortization and impairment |  | 0 |  | 0 |  |
Not subject to amortization |  | 0 |  | 0 |  |
Investments in consolidated subsidiaries |  | 20,511 |  | 24,311 |  |
Other assets |  | 891 |  | 5,038 |  |
Assets held for sale |  |  |  | 0 |  |
Total assets |  | 21,744 |  | 29,556 |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities, other than liabilities held for sale |  | 2,697 |  | 6,012 |  |
Current liabilities held for sale |  | 0 |  | 0 |  |
Long-term debt, less current portion |  | 13,426 |  | 14,735 |  |
Deferred income taxes | [2] | 845 |  | 941 |  |
Environmental and asset retirement obligations, less current portion |  | 0 |  | 0 |  |
Investments in consolidated subsidiaries |  | 0 |  | 0 |  |
Other liabilities |  | 44 |  | 40 |  |
Liabilities held for sale |  |  |  | 0 |  |
Total liabilities |  | 17,012 |  | 21,728 |  |
Redeemable noncontrolling interest |  | 0 |  | 0 |  |
Equity: |  |  |  |  |  |
Stockholders' equity |  | 4,732 |  | 7,828 |  |
Noncontrolling interests |  | 0 |  | 0 |  |
Total equity |  | 4,732 |  | 7,828 |  |
Total liabilities and equity |  | 21,744 |  | 29,556 |  |
FM O&G LLC Guarantor [Member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets, other than assets held for sale |  | 2,463 |  | 3,831 |  |
Current assets held for sale |  | 0 |  | 0 |  |
Property, plant, equipment and mining development costs, net |  | 52 |  | 57 |  |
Oil and gas properties, net - full cost method |  |  |  |  |  |
Subject to amortization, less accumulated amortization and impairment |  | 266 |  | 710 |  |
Not subject to amortization |  | 406 |  | 1,393 |  |
Investments in consolidated subsidiaries |  | 0 |  | 0 |  |
Other assets |  | 41 |  | 1,826 |  |
Assets held for sale |  |  |  | 0 |  |
Total assets |  | 3,228 |  | 7,817 |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities, other than liabilities held for sale |  | 340 |  | 666 |  |
Current liabilities held for sale |  | 0 |  | 0 |  |
Long-term debt, less current portion |  | 7,624 |  | 5,883 |  |
Deferred income taxes |  | 0 |  | 0 |  |
Environmental and asset retirement obligations, less current portion |  | 352 |  | 305 |  |
Investments in consolidated subsidiaries |  | 828 |  | 0 |  |
Other liabilities |  | 3,351 |  | 3,360 |  |
Liabilities held for sale |  |  |  | 0 |  |
Total liabilities |  | 12,495 |  | 10,214 |  |
Redeemable noncontrolling interest |  | 0 |  | 0 |  |
Equity: |  |  |  |  |  |
Stockholders' equity |  | (9,267) |  | (2,397) |  |
Noncontrolling interests |  | 0 |  | 0 |  |
Total equity |  | (9,267) |  | (2,397) |  |
Total liabilities and equity |  | 3,228 |  | 7,817 |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets, other than assets held for sale |  | 7,914 |  | 10,238 |  |
Current assets held for sale |  | 4,663 |  | 744 |  |
Property, plant, equipment and mining development costs, net |  | 23,339 |  | 24,163 |  |
Oil and gas properties, net - full cost method |  |  |  |  |  |
Subject to amortization, less accumulated amortization and impairment |  | 712 |  | 1,552 |  |
Not subject to amortization |  | 1,237 |  | 3,432 |  |
Investments in consolidated subsidiaries |  | 0 |  | 0 |  |
Other assets |  | 3,776 |  | 3,586 |  |
Assets held for sale |  |  |  | 4,124 |  |
Total assets |  | 41,641 |  | 47,839 |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities, other than liabilities held for sale |  | 4,483 |  | 5,047 |  |
Current liabilities held for sale |  | 821 |  | 108 |  |
Long-term debt, less current portion |  | 11,642 |  | 11,594 |  |
Deferred income taxes |  | 2,704 |  | 2,666 |  |
Environmental and asset retirement obligations, less current portion |  | 3,373 |  | 3,412 |  |
Investments in consolidated subsidiaries |  | 9,267 |  | 2,397 |  |
Other liabilities |  | 1,710 |  | 1,732 |  |
Liabilities held for sale |  |  |  | 718 |  |
Total liabilities |  | 34,000 |  | 27,674 |  |
Redeemable noncontrolling interest |  | 774 |  | 764 |  |
Equity: |  |  |  |  |  |
Stockholders' equity |  | 3,108 |  | 15,725 |  |
Noncontrolling interests |  | 3,759 |  | 3,676 |  |
Total equity |  | 6,867 |  | 19,401 |  |
Total liabilities and equity |  | 41,641 |  | 47,839 |  |
Consolidation, Eliminations [Member] |  |  |  |  |  |
ASSETS |  |  |  |  |  |
Current Assets, other than assets held for sale |  | (3,855) |  | (7,532) |  |
Current assets held for sale |  | 0 |  | 0 |  |
Property, plant, equipment and mining development costs, net |  | 2 |  | 0 |  |
Oil and gas properties, net - full cost method |  |  |  |  |  |
Subject to amortization, less accumulated amortization and impairment |  | 1 |  | 0 |  |
Not subject to amortization |  | 1 |  | 6 |  |
Investments in consolidated subsidiaries |  | (20,511) |  | (24,311) |  |
Other assets |  | (851) |  | (6,798) |  |
Assets held for sale |  |  |  | 0 |  |
Total assets |  | (25,213) |  | (38,635) |  |
LIABILITIES AND EQUITY |  |  |  |  |  |
Current Liabilities, other than liabilities held for sale |  | (3,853) |  | (7,526) |  |
Current liabilities held for sale |  | 0 |  | 0 |  |
Long-term debt, less current portion |  | (14,512) |  | (12,433) |  |
Deferred income taxes |  | 0 |  | 0 |  |
Environmental and asset retirement obligations, less current portion |  | 0 |  | 0 |  |
Investments in consolidated subsidiaries |  | (10,095) |  | (2,397) |  |
Other liabilities |  | (3,487) |  | (3,491) |  |
Liabilities held for sale |  |  |  | 0 |  |
Total liabilities |  | (31,947) |  | (25,847) |  |
Redeemable noncontrolling interest |  | 0 |  | 0 |  |
Equity: |  |  |  |  |  |
Stockholders' equity |  | 6,159 |  | (13,328) |  |
Noncontrolling interests |  | 575 |  | 540 |  |
Total equity |  | 6,734 |  | (12,788) |  |
Total liabilities and equity |  | $ (25,213) |  | $ (38,635) |  |
[1] | Includes (i) assets held for sale totaling $4.7 billion at September 30, 2016, and $4.9 billion at September 30, 2015, and (ii) capital expenditures totaling $15 million in third-quarter 2016 and $69 million in third-quarter 2015 associated with discontinued operations. Refer to Note 2 for a summary of the results of discontinued operations.
[2] | All U.S. related deferred income taxes are recorded at the parent company.

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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(14)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(8)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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