XML 49 R37.htm IDEA: XBRL DOCUMENT
v3.19.3

Fair Value Measurement (Fair Value Measurement Inputs) (Details) $ in Millions | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) $ / bbl | Dec. 31, 2016 USD ($) $ / bbl | Nov. 30, 2016 USD ($) $ / lb
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Other Assets, Current | $ 672 |  |  |  | $ 422 |  |
Other assets | 1,966 |  |  |  | 2,172 |  |
Proceeds from Sale of Other Assets, contingent consideration | 102 | $ 10 |  |  |  |  |
Derivative Liability, Fair Value, Gross Liability | 42 |  |  |  | 48 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 5 |  |  |  | 16 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 41 |  |  |  | 41 |  |
Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 0 |  |  |  | 0 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 27 |  |  |  | 25 |  |
Trust Assets Fair Value Disclosure | 59 |  |  |  | 55 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Long-term debt, including current portion | 0 |  |  |  | 0 |  |
Level 1 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 0 |  |  |  | 0 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 4 |  |  |  | 4 |  |
Trust Assets Fair Value Disclosure | 4 |  |  |  | 5 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 5 |  |  |  | 7 |  |
Long-term debt, including current portion | 0 |  |  |  | 0 |  |
Level 2 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 0 |  |  |  | 0 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 0 |  |  |  | 0 |  |
Trust Assets Fair Value Disclosure | 133 |  |  |  | 121 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 73 |  |  |  | 96 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 37 |  |  |  | 41 |  |
Long-term debt, including current portion | 9,872 |  |  |  | 10,238 |  |
Level 3 |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 110 |  |  |  | 127 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 0 |  |  |  | 0 |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Long-term debt, including current portion | 0 |  |  |  | 0 |  |
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 110 |  |  |  | 127 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 31 |  |  |  | 29 |  |
Trust Assets Fair Value Disclosure | 196 |  |  |  | 181 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 73 |  |  |  | 96 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 42 |  |  |  | 48 |  |
Long-term debt, including current portion | 9,872 |  |  |  | 10,238 |  |
Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable | 128 |  |  |  | 143 |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Investments, Fair Value Disclosure | 31 |  |  |  | 29 |  |
Trust Assets Fair Value Disclosure | 196 |  |  |  | 181 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 73 |  |  |  | 96 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 42 |  |  |  | 48 |  |
Long-term debt, including current portion | 9,919 |  |  |  | 11,141 |  |
Embedded Derivative Financial Instruments [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Derivative Liability, Fair Value, Gross Liability | 36 |  |  |  | 39 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 5 |  |  |  | 16 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 35 |  |  |  | 32 |  |
Embedded Derivative Financial Instruments [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Embedded Derivative Financial Instruments [Member] | Level 1 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Embedded Derivative Financial Instruments [Member] | Level 2 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 6 |  |  |  | 23 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 36 |  |  |  | 39 |  |
Embedded Derivative Financial Instruments [Member] | Level 3 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Embedded Derivative Financial Instruments [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 6 |  |  |  | 23 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 36 |  |  |  | 39 |  |
Embedded Derivative Financial Instruments [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 6 |  |  |  | 23 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 36 |  |  |  | 39 |  |
Commodity Contract [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Derivative Liability, Fair Value, Gross Liability | 6 |  |  |  | 9 |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 6 |  |  |  | 9 |  |
Commodity Contract [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Commodity Contract [Member] | Level 1 |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 5 |  |  |  | 7 |  |
Commodity Contract [Member] | Level 2 |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 1 |  |  |  | 2 |  |
Commodity Contract [Member] | Level 3 |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 0 |  |  |  | 0 |  |
Commodity Contract [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 6 |  |  |  | 9 |  |
Commodity Contract [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Derivatives: [Abstract] |  |  |  |  |  |  |
Derivative Liability | 6 |  |  |  | 9 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Level 1 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Level 2 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 67 |  |  |  | 73 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Level 3 |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 0 |  |  |  | 0 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 67 |  |  |  | 73 |  |
Africa and onshore California [Member] | Commodity Contract [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Derivative Asset | 67 |  |  |  | 73 |  |
U.S. core fixed income fund [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 27 |  |  |  | 25 |  |
Trust Assets Fair Value Disclosure | 59 |  |  |  | 55 |  |
U.S. core fixed income fund [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  | 0 |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
U.S. core fixed income fund [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  | 0 |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
U.S. core fixed income fund [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  | 0 |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
U.S. core fixed income fund [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 27 |  |  |  | 25 |  |
Trust Assets Fair Value Disclosure | 59 |  |  |  | 55 |  |
U.S. core fixed income fund [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 27 |  |  |  | 25 |  |
Trust Assets Fair Value Disclosure | 59 |  |  |  | 55 |  |
Equity securities | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities |  |  |  |  | 0 |  |
Equity securities | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 4 |  |  |  | 4 |  |
Equity securities | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  | 0 |  |
Equity securities | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 0 |  |  |  | 0 |  |
Equity securities | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 4 |  |  |  | 4 |  |
Equity securities | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Marketable Securities | 4 |  |  |  | 4 |  |
Government bonds | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government bonds | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government bonds | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 38 |  |  |  | 36 |  |
Government bonds | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government bonds | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 38 |  |  |  | 36 |  |
Government bonds | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 38 |  |  |  | 36 |  |
Corporate bonds [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Corporate bonds [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Corporate bonds [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 35 |  |  |  | 28 |  |
Corporate bonds [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Corporate bonds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 35 |  |  |  | 28 |  |
Corporate bonds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 35 |  |  |  | 28 |  |
Government mortgage-backed securities [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government mortgage-backed securities [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government mortgage-backed securities [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 41 |  |  |  | 38 |  |
Government mortgage-backed securities [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Government mortgage-backed securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 41 |  |  |  | 38 |  |
Government mortgage-backed securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 41 |  |  |  | 38 |  |
Asset-backed securities [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Asset-backed securities [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Asset-backed securities [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 12 |  |  |  | 11 |  |
Asset-backed securities [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Asset-backed securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 12 |  |  |  | 11 |  |
Asset-backed securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 12 |  |  |  | 11 |  |
Money market funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Money market funds [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 4 |  |  |  | 5 |  |
Money market funds [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Money market funds [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Money market funds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 4 |  |  |  | 5 |  |
Money market funds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 4 |  |  |  | 5 |  |
Collateralized Mortgage Backed Securities [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Collateralized Mortgage Backed Securities [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Collateralized Mortgage Backed Securities [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 6 |  |  |  | 7 |  |
Collateralized Mortgage Backed Securities [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Collateralized Mortgage Backed Securities [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 6 |  |  |  | 7 |  |
Collateralized Mortgage Backed Securities [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 6 |  |  |  | 7 |  |
Municipal bonds [Member] | Fair Value Measured at Net Asset Value Per Share [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Municipal bonds [Member] | Level 1 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Municipal bonds [Member] | Level 2 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 1 |  |  |  | 1 |  |
Municipal bonds [Member] | Level 3 |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 0 |  |  |  | 0 |  |
Municipal bonds [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 1 |  |  |  | 1 |  |
Municipal bonds [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Investment securities (current and long-term): |  |  |  |  |  |  |
Trust Assets Fair Value Disclosure | 1 |  |  |  | 1 |  |
Bank Time Deposits [Member] | Carrying Amount, Fair Value Disclosure [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Other Assets, Current | 100 |  |  |  | 109 |  |
Other assets | 164 |  |  |  | 126 |  |
Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Derivative Liability, Fair Value, Gross Liability | 36 |  |  |  | 39 |  |
TF Holdings Limited | Disposed of by sale |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Other Assets, Current | 59 |  |  |  |  |  |
Other assets |  |  |  |  | 57 |  |
Discontinued Operation, Contingent Receivable |  |  |  |  |  |  | $ 120
Copper | TF Holdings Limited | Disposed of by sale |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable |  |  |  |  |  |  | 60
Cobalt | TF Holdings Limited | Disposed of by sale |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable |  |  |  |  |  |  | $ 60
Derivatives: |  |  |  |  |  |  |
Contingent consideration, reference threshold (in us dollars per pound) | $ / lb |  |  |  |  |  |  | 20
Freeport-McMoRan Oil & Gas | Onshore California [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Other assets | 8 |  |  |  | 16 |  |
Discontinued Operation, Contingent Receivable |  |  |  |  |  | $ 150 |
Proceeds from Sale of Other Assets, contingent consideration | 50 |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable, Per Year |  |  |  |  | 50 |  |
Freeport-McMoRan Oil & Gas | Deepwater Gulf of Mexico Interests [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions [Line Items] |  |  |  |  |  |  |
Other Assets, Current | 18 |  |  |  | 27 |  |
Other assets | $ 110 |  |  |  | $ 116 |  |
Discontinued Operation, Contingent Receivable |  |  |  |  |  | $ 150 |
Forecast | Freeport-McMoRan Oil & Gas | Onshore California [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Discontinued Operation, Contingent Receivable, Per Year |  |  | $ 50 | $ 50 |  |  |
Crude Oil [Member] | Freeport-McMoRan Oil & Gas | Onshore California [Member] |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Contingent consideration, reference threshold (in us dollars per pound) | $ / bbl |  |  |  |  | 70 | 70 |
Maximum [Member] | Copper | TF Holdings Limited | Disposed of by sale |  |  |  |  |  |  |
Derivatives: |  |  |  |  |  |  |
Contingent consideration, reference threshold (in us dollars per pound) | $ / lb |  |  |  |  |  |  | 3.50

X
- Definition Contingent Consideration, Average Reference Price Unit + References No definition available. + Details
Name: | fcx_ContingentConsiderationAverageReferencePriceUnit
Namespace Prefix: | fcx_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | instant

X
- Definition Discontinued Operation, Contingent Receivable + References No definition available. + Details
Name: | fcx_DiscontinuedOperationContingentReceivable
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Discontinued Operation, Contingent Receivable, Per Year + References No definition available. + Details
Name: | fcx_DiscontinuedOperationContingentReceivablePerYear
Namespace Prefix: | fcx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | fcx_FairValueAssetsLiabilitiesMeasuredOnRecurringBasisFinancialStatementCaptionsLineItems
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
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
Name: | us-gaap_DerivativeAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before 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 elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgesLiabilitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&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 portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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

X
- Definition Amount of investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_MarketableSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of current assets classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherAssetsCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of noncurrent assets classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_OtherAssetsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cash inflow from the sale of other assets recognized in investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromSaleOfOtherAssetsInvestingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EmbeddedDerivativeFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=fcx_AfricaandonshoreCaliforniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_USGovernmentDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_MunicipalBondsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=fcx_TFHoldingsLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfBySaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=fcx_CopperMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesInventoryAxis=fcx_CobaltMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=fcx_FreeportMcMoRanOilGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=fcx_OnshoreCaliforniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=fcx_DeepwaterGulfofMexicoInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_EnergyAxis=srt_CrudeOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |