Percentage of deferred intercompany profit on sales to equity method investee.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Percentage of primary division's copper production produced by that mine.

+ References

No definition available.

+ Details

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- Definition

Percentage of annual concentrate requirements purchased from intercompany sites.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Date the entity disposed of a business or a group of assets, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Percent of net assets at close of period. For schedules of investments that are categorized, each category has a percent of net assets for the aggregated value of the Investments in the category.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-12.3)
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-12C.Column D.2)
-URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010

+ Details

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- Details

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- Details

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- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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BUSINESS SEGMENTS (Mine Production and Purchase Percentages) (Details)	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2015	Oct. 06, 2014
Morenci [Member]
Mining Segment Reporting Information [Line Items]
Percentage of Division's Copper Production		46.00%
Cerro Verde [Member]
Mining Segment Reporting Information [Line Items]
Percentage of Division's Copper Production		63.00%
North America Copper Mines Segment [Member]
Mining Segment Reporting Information [Line Items]
Percentage of Atlantic Copper's annual concentrate requirements purchased from intercompany		23.00%
South America [Member]
Mining Segment Reporting Information [Line Items]
Percentage of Atlantic Copper's annual concentrate requirements purchased from intercompany		3.00%
Indonesia [Member]
Mining Segment Reporting Information [Line Items]
Percentage of Atlantic Copper's annual concentrate requirements purchased from intercompany		3.00%
PT Smelting [Member]
Mining Segment Reporting Information [Line Items]
Deferred Intercompany Profit, Percentage		25.00%
Investment Owned, Percent of Net Assets		25.00%
Candelaria and Ojos del Salado Mining Complex [Member]
Mining Segment Reporting Information [Line Items]
Disposal Date	Nov. 03, 2014
Investment Owned, Percent of Net Assets			80.00%