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Income Taxes (Unaudited) | 3 Months Ended
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Mar. 31, 2017
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 40 percent for first-quarter 2017 and (2) percent for first-quarter 2016. Geographic sources of FCX’s provision for income taxes follow (in millions):
| Three Months Ended |
| March 31, |
| 2017 |  | 2016 |
U.S. operations | $ | (7 | ) |  | $ | 11 |  |
International operations | (167 | ) |  | (88 | ) |
Total | $ | (174 | ) |  | $ | (77 | ) |
Applicable accounting standards require that FCX estimate an annual effective tax rate and apply that rate to each year-to-date interim period. However, an exception is provided to exclude tax jurisdictions from the annual effective tax rate where losses are expected to be generated for which no tax benefit will be realized. Accordingly, U.S. operations have been excluded from the calculation of the estimated annual effective tax rate used to determine FCX’s income tax provision at March 31, 2017. As a result of the impairment to U.S. oil and gas properties, FCX recorded tax charges of $1.4 billion in first-quarter 2016 to establish a valuation allowance primarily against U.S. federal and state deferred tax assets that will not generate a future benefit. FCX’s consolidated effective income tax rate was 34 percent in first-quarter 2016 excluding these tax charges.

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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=65882285&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=65882285&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=65882285&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=65882285&loc=d3e32537-109319 + Details
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