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Income Taxes (Unaudited) | 9 Months Ended
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Sep. 30, 2015
Income Tax Disclosure [Abstract] |
Income Taxes | INCOME TAXES Variations in the relative proportions of jurisdictional income result in fluctuations to FCX's consolidated effective income tax rate. FCX’s consolidated effective income tax rate was 18 percent for the first nine months of 2015 and 34 percent for the first nine months of 2014. Geographic sources of FCX's benefit from (provision for) income taxes follow (in millions):
| Three Months Ended |  | Nine Months Ended |
| September 30, |  | September 30, |
| 2015 |  | 2014 |  | 2015 |  | 2014 |
U.S. operations | $ | 309 |  | a | $ | (38 | ) |  | $ | 2,020 |  | a | $ | (323 | ) | b
International operations | 51 |  |  | (311 | ) | c | (278 | ) |  | (711 | ) | c
Total | $ | 360 |  |  | $ | (349 | ) |  | $ | 1,742 |  |  | $ | (1,034 | ) |
a. | As a result of the impairment to U.S. oil and gas properties, FCX recorded tax charges of $1.2 billion for third-quarter 2015 and $2.0 billion for the first nine months of 2015 to establish a valuation allowance primarily against U.S. federal alternative minimum tax credits and foreign tax credits, partly offset by a tax benefit of $56 million related to the impairment of the Morocco oil and gas properties. Excluding these charges, FCX's consolidated effective income tax rate was 38 percent for the first nine months of 2015.
b. | FCX recognized a $62 million charge for deferred taxes recorded in connection with the allocation of goodwill to the sale of Eagle Ford shale assets.
c. | Included a $54 million charge related to changes in Chilean tax rules.
During third-quarter 2015, PT Freeport Indonesia's (PT-FI) Delaware domestication was terminated. As a result, PT-FI will no longer be a U.S. income tax filer, and tax attributes related to PT-FI, which currently are fully reserved with a related valuation allowance, will no longer be available for use within FCX's U.S. federal consolidated income tax return. PT-FI remains a limited liability company organized under Indonesian law.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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