XML 54 R36.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Debt and Equity Transactions (Unaudited) Interest, Dividends and Maturities (Details) - USD ($) shares in Millions, $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jul. 29, 2016 | Jan. 05, 2016 | Aug. 04, 2016 | Jul. 31, 2016 | Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Jan. 05, 2016 | Dec. 31, 2015
Capitalized Interest [Line Items] |  |  |  |  |  |  |  |  |  |
Interest costs incurred |  |  |  |  | $ 218 | $ 208 | $ 436 | $ 411 |  |
Stock Issued During Period, Shares, New Issues |  | 4 |  |  | 17 |  |  |  | 210 | 206
Fees and Commissions |  | $ 20 |  |  |  |  |  |  |  |
Property, Plant, Equipment and Mining Development Costs, Net [Member] |  |  |  |  |  |  |  |  |  |
Capitalized Interest [Line Items] |  |  |  |  |  |  |  |  |  |
Interest costs capitalized |  |  |  |  | $ 22 | 47 | 42 | 92 |  |
Oil and Gas Properties Not Subject to Amortization [Member] |  |  |  |  |  |  |  |  |  |
Capitalized Interest [Line Items] |  |  |  |  |  |  |  |  |  |
Interest costs capitalized |  |  |  |  | $ 0 | $ 19 | $ 7 | $ 38 |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Capitalized Interest [Line Items] |  |  |  |  |  |  |  |  |  |
Common Stock, Value of Shares Authorized for Issue in Transaction | $ 12 |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues |  |  | 8 | 3 |  |  |  |  |  |
Proceeds from Issuance of Common Stock, Gross |  |  |  | $ 226 |  |  |  |  |  |

X
- Definition [Line Items] for Detailed disclosure of capitalized Interest. + References No definition available. + Details
Name: | fcx_CapitalizedInterestLineItems
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The value of shares authorized for issue in an equity transaction. + References No definition available. + Details
Name: | fcx_CommonStockValueofSharesAuthorizedforIssueinTransaction
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The gross cash inflow from the additional capital contribution to the entity, before commissions and fees. + References No definition available. + Details
Name: | fcx_ProceedsfromIssuanceofCommonStockGross
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of fees and commissions from financial services and banking activities and correspondent clearing. Includes fees from depositor accounts, credit cards, merchant discounts, and fiduciary and trust activities, guarantee fees, investment advisory, management, and administrative fees, transfer agent fees, and insurance commissions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_FeesAndCommissions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of interest capitalized during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Allowance for Funds Used during Construction -URI http://asc.fasb.org/extlink&oid=6504829 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
Name: | us-gaap_InterestCostsCapitalized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total interest costs incurred during the period and either capitalized or charged against earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
Name: | us-gaap_InterestCostsIncurred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_PropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OilAndGasPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |