v2.4.0.6

Properties, Plants and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2011
Properties, Plants and Equipment | The company’s investment in PP&E, with accumulated depreciation, depletion and amortization (Accum. DD&A), at December 31 was:
|  | Millions of Dollars |
|  | 2011 |  |  | 2010 |
|  | Gross PP&E |  |  | Accum. DD&A |  |  | Net PP&E |  |  | Gross PP&E |  |  | Accum. DD&A |  |  | Net PP&E |
E&P |  | $ | 124,111 |  |  |  | 55,565 |  |  |  | 68,546 |  |  |  | 116,805 |  |  |  | 50,501 |  |  |  | 66,304 |
Midstream |  |  | 135 |  |  |  | 86 |  |  |  | 49 |  |  |  | 128 |  |  |  | 80 |  |  |  | 48 |
R&M |  |  | 22,096 |  |  |  | 8,128 |  |  |  | 13,968 |  |  |  | 23,579 |  |  |  | 8,999 |  |  |  | 14,580 |
LUKOIL Investment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Chemicals |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Emerging Businesses |  |  | 1,023 |  |  |  | 220 |  |  |  | 803 |  |  |  | 981 |  |  |  | 161 |  |  |  | 820 |
Corporate and Other |  |  | 1,844 |  |  |  | 1,030 |  |  |  | 814 |  |  |  | 1,732 |  |  |  | 930 |  |  |  | 802 |
|  | $ | 149,209 |  |  |  | 65,029 |  |  |  | 84,180 |  |  |  | 143,225 |  |  |  | 60,671 |  |  |  | 82,554 |

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- Definition Tabular disclosure by business segment of the depreciation and book value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References No definition available. + Details
Name: | cop_PropertyPlantAndEquipmentBySegmentTableTextBlock
Namespace Prefix: | cop_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration