XML 69 R41.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurement (Unaudited) (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
--- | --- | ---
Derivatives: |  |  |  |
Derivative assets | $ 62 |  | $ 59 |
Derivatives: |  |  |  |
Derivative liabilities | 317 |  | 320 |
Escrow Deposit Disbursements Related to Property Acquisition | 414 |  |  |
Fair Value, Measurements, Recurring [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 460 | [1],[2] | 44 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 168 | [1],[2],[3] | 182 | [1],[2],[3]
Derivatives: |  |  |  |
Derivative assets | 63 | [2],[4] | 69 | [2],[4]
Derivatives: |  |  |  |
Derivative liabilities | 318 | [2],[4] | 332 | [2]
Long-term debt, including current portion | 20,296 | [5] | 20,706 | [5]
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 460 | [1],[2] | 44 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 168 | [1],[2],[3] | 182 | [1],[2],[3]
Derivatives: |  |  |  |
Derivative assets | 63 | [2],[4] | 69 | [2],[4]
Total assets | 691 |  | 295 |
Derivatives: |  |  |  |
Derivative liabilities | 318 | [2],[4] | 332 | [2]
Long-term debt, including current portion | 20,607 | [5] | 20,487 | [5]
Total liabilities | 20,925 |  | 20,819 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 438 | [1],[2] | 23 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 6 | [1],[2],[3] | 28 | [1],[2],[3]
Derivatives: |  |  |  |
Derivative assets | 8 | [2],[4] | 5 | [2],[4]
Total assets | 452 |  | 56 |
Derivatives: |  |  |  |
Derivative liabilities | 1 | [2],[4] | 1 | [2]
Long-term debt, including current portion | 0 | [5] | 0 | [5]
Total liabilities | 1 |  | 1 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 22 | [1],[2] | 21 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 162 | [1],[2],[3] | 154 | [1],[2],[3]
Derivatives: |  |  |  |
Derivative assets | 55 | [2],[4] | 64 | [2],[4]
Total assets | 239 |  | 239 |
Derivatives: |  |  |  |
Derivative liabilities | 19 | [2],[4] | 20 | [2]
Long-term debt, including current portion | 20,607 | [5] | 20,487 | [5]
Total liabilities | 20,626 |  | 20,507 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2] | 0 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] | 0 | [2],[4]
Total assets | 0 |  | 0 |
Derivatives: |  |  |  |
Derivative liabilities | 298 | [2],[4] | 311 | [2]
Long-term debt, including current portion | 0 | [5] | 0 | [5]
Total liabilities | 298 |  | 311 |
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 12 | [2],[4] | 16 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 12 | [2],[4] | 16 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 12 | [2],[4] | 16 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Crude Oil Options [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 298 | [2],[4] | 309 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Crude Oil Options [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 298 | [2],[4] | 309 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Crude Oil Options [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Crude Oil Options [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Crude Oil Options [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 298 | [2],[4] | 309 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Natural gas swaps [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 7 | [2],[4] | 4 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Natural gas swaps [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 7 | [2],[4] | 4 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Natural gas swaps [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Natural gas swaps [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 7 | [2],[4] | 4 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Natural gas swaps [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 1 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 1 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 1 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 0 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 1 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 1 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 1 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Plains Offshore Warrants [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 2 | [2],[6]
Fair Value, Measurements, Recurring [Member] | Plains Offshore Warrants [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 2 | [2],[6]
Fair Value, Measurements, Recurring [Member] | Plains Offshore Warrants [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 0 | [2],[6]
Fair Value, Measurements, Recurring [Member] | Plains Offshore Warrants [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 0 | [2],[6]
Fair Value, Measurements, Recurring [Member] | Plains Offshore Warrants [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities |  |  | 2 | [2],[6]
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 434 | [1],[2],[7] | 18 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 6 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 434 | [1],[2],[7] | 18 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 6 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 434 | [1],[2],[7] | 18 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 6 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2],[7] | 0 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Money market funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2],[7] | 0 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | U.S. core fixed income fund [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 22 | [1],[2] | 21 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 50 | [1],[2],[3] | 48 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | U.S. core fixed income fund [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 22 | [1],[2] | 21 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 50 | [1],[2],[3] | 48 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | U.S. core fixed income fund [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2] | 0 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | U.S. core fixed income fund [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 22 | [1],[2] | 21 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 50 | [1],[2],[3] | 48 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | U.S. core fixed income fund [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2] | 0 | [1],[2]
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Equity securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 4 | [1],[2] | 5 | [1],[2]
Fair Value, Measurements, Recurring [Member] | Equity securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 4 | [1],[2] | 5 | [1],[2]
Fair Value, Measurements, Recurring [Member] | Equity securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 4 | [1],[2] | 5 | [1],[2]
Fair Value, Measurements, Recurring [Member] | Equity securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2] | 0 | [1],[2]
Fair Value, Measurements, Recurring [Member] | Equity securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 0 | [1],[2] | 0 | [1],[2]
Fair Value, Measurements, Recurring [Member] | Government bonds and notes [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 35 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government bonds and notes [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 35 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government bonds and notes [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government bonds and notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 35 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government bonds and notes [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government mortgage-backed securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 31 | [1],[2],[3] | 34 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government mortgage-backed securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 31 | [1],[2],[3] | 34 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government mortgage-backed securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government mortgage-backed securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 31 | [1],[2],[3] | 34 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Government mortgage-backed securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 29 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 29 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 29 | [1],[2],[3] | 28 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 16 | [1],[2],[3] | 15 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 16 | [1],[2],[3] | 15 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 16 | [1],[2],[3] | 15 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Asset-backed securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 1 | [1],[2],[3] | 1 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 1 | [1],[2],[3] | 1 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 1 | [1],[2],[3] | 1 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Legally restricted funds (long-term): |  |  |  |
Legally restricted funds | 0 | [1],[2],[3] | 0 | [1],[2],[3]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 55 | [2],[4] | 63 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 55 | [2],[4] | 63 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 55 | [2],[4] | 63 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Embedded derivatives in provisional sales/purchases contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 6 | [2],[4] | 6 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 6 | [2],[4] | 6 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 6 | [2],[4] | 5 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] | 1 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper futures and swap contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] | 0 | [2],[4]
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 2 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 2 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 2 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] |  |
Fair Value, Measurements, Recurring [Member] | Copper forward contracts [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 0 | [2],[4] |  |
Deferred Option Premiums and Accrued Interest [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative liabilities | 329 |  | 444 |
Other Current Assets [Member] |  |  |  |
Derivatives: |  |  |  |
Derivative assets | 7 |  | 6 |
Derivatives: |  |  |  |
Derivative liabilities | 0 |  | 0 |
Other Current Assets [Member] | Fair Value, Measurements, Recurring [Member] | Time Deposits [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities | 225 |  | 15 |
Other Assets [Member] | Fair Value, Measurements, Recurring [Member] | Time Deposits [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |
Investment securities (current and long-term): |  |  |  |
Investment securities |  |  | $ 210 |
[1] | Current portion included in other current assets and long-term portion included in other assets.
[2] | Recorded at fair value.
[3] | Excluded $225 million of time deposits (which approximated fair value) at June 30, 2014 (included in other current assets), and at December 31, 2013 ($15 million included in other current assets and $210 million in other assets), associated with the Cerro Verde royalty dispute.
[4] | Refer to Note 7 for further discussion and balance sheet classifications. Crude oil options are net of $329 million at June 30, 2014, and $444 million at December 31, 2013, for deferred premiums and accrued interest.
[5] | Recorded at cost except for debt assumed in acquisitions, which were recorded at fair value at the respective acquisition dates.
[6] | Included in other liabilities.
[7] | ncluded $414 million held in an escrow account for future oil and gas property acquisitions (refer to Note 2 for further discussion).

X
- Details
Name: | fcx_DerivativesAssetsAbstract
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | fcx_DerivativesLiabilitiesAbstract
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | fcx_TrustAssetsCurrentAndLongTermAbstract
Namespace Prefix: | fcx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption, parenthetical disclosure or within the fair value disclosures required in the footnote disclosures to the financial statements. This item represents the amount of trust assets (current and long-term) existing as of the balance sheet date. + References No definition available. + Details
Name: | fcx_TrustAssetsFairValueDisclosure
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
Name: | us-gaap_AvailableForSaleSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
Name: | us-gaap_Deposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13495-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=34720828&loc=SL20225862-175312 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=36459792&loc=SL20226008-175313 + Details
Name: | us-gaap_DerivativeLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant