XML 80 R97.htm IDEA: XBRL DOCUMENT
v2.4.0.8

BUSINESS SEGMENTS (Revenue by Major Customers and Labor Matters) (Details) (USD $) In Billions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Major Customer and Labor Matters [Line Items] |  |  |
Percentage of Employees Covered by Collective Bargaining Agreements | 49.00% |  |
Percentage of Employees Covered by Collective Bargaining Agreements that Expire within One Year | 1.00% |  |
PT Smelting [Member] |  |  |
Major Customer and Labor Matters [Line Items] |  |  |
Revenues to major customers | $ 1.7 | $ 2.1 | $ 2.3
Percent of revenues to major customers as compared to total consolidated revenues | 8.00% | 11.00% | 11.00%

X
- Definition Amount of revenue generated from a single external customer reported as a percentage of total consolidated revenues (disclsoure only required if revenues account for 10 percent or more of an entity's revenues). + References No definition available. + Details
Name: | fcx_EntityWideRevenueMajorCustomerAsComparedToTotalConsolidatedRevenuesPercent
Namespace Prefix: | fcx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Concentration of labor, expressed as a percentage of total employees, subject to collective bargaining agreements. + References No definition available. + Details
Name: | fcx_PercentageOfEmployeesCoveredByCollectiveBargainingAgreements
Namespace Prefix: | fcx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Concentration of labor, expressed as a percentage of total employees, subject to collective bargaining agreements that expire within one year. + References No definition available. + Details
Name: | fcx_PercentageOfEmployeesCoveredByCollectiveBargainingAgreementsThatExpireWithinOneYear
Namespace Prefix: | fcx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_EntityWideRevenueMajorCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration