| Component: (Network and Table) | |
|---|---|
| Network | 400400 - Disclosure - Inventories (Details) (http://conocophillips.com/role/DisclosureInventoriesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001163165 (http://www.sec.gov/CIK) |
| Inventories [Abstract] | Period [Axis] | |
|---|---|---|
2016-01-01 - 2016-12-31 | 2015-12-31 | |
Inventories [Abstract] | ||
Inventories | ||
Crude oil and natural gas | ||
Materials, supplies and other | ||
Total Inventories | 1,018,000,000 | 1,124,000,000 |
Inventories (Textual) [Abstract] | ||
Inventories valued on the LIFO basis | ||
Excess of current replacement cost over LIFO cost of inventories | ||
Effect of LIFO Inventory Liquidation on Income | ||
Lower of cost or market write down | ||