XML 44 R118.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Supplemental Information On Oil And Gas Operations (Costs Incurred) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Property acquisition costs: |  |  |
Proved properties | $ 5,210 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves | $ 22 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves | $ 73 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
Unproved properties | 1,177 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties | 216 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties | 1,167 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
Exploration costs | 322 us-gaap_CostsIncurredExplorationCosts | 595 us-gaap_CostsIncurredExplorationCosts | 666 us-gaap_CostsIncurredExplorationCosts
Development costs | 5,463 us-gaap_CostsIncurredDevelopmentCosts | 5,089 us-gaap_CostsIncurredDevelopmentCosts | 6,099 us-gaap_CostsIncurredDevelopmentCosts
Costs incurred | 12,172 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties | 5,922 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties | 8,005 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties
United States [Member] |  |  |
Property acquisition costs: |  |  |
Proved properties | 5,210 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves / us-gaap_StatementGeographicalAxis = country_US | 19 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves / us-gaap_StatementGeographicalAxis = country_US | 2 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves / us-gaap_StatementGeographicalAxis = country_US
Unproved properties | 1,176 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US | 213 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US | 1,135 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US
Exploration costs | 270 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_US | 443 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_US | 351 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_US
Development costs | 4,400 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_US | 3,838 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_US | 4,408 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_US
Costs incurred | 11,056 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US | 4,513 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US | 5,896 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_US
Canada [Member] |  |  |
Property acquisition costs: |  |  |
Proved properties |  | 3 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves / us-gaap_StatementGeographicalAxis = country_CA | 71 us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves / us-gaap_StatementGeographicalAxis = country_CA
Unproved properties | 1 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA | 3 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA | 32 us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA
Exploration costs | 52 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_CA | 152 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_CA | 315 us-gaap_CostsIncurredExplorationCosts / us-gaap_StatementGeographicalAxis = country_CA
Development costs | 1,063 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_CA | 1,251 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_CA | 1,691 us-gaap_CostsIncurredDevelopmentCosts / us-gaap_StatementGeographicalAxis = country_CA
Costs incurred | $ 1,116 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA | $ 1,409 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA | $ 2,109 us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties / us-gaap_StatementGeographicalAxis = country_CA

X
- Definition Cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447 + Details
Name: | us-gaap_CostsIncurredAcquisitionOfOilAndGasProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62038-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447 + Details
Name: | us-gaap_CostsIncurredAcquisitionOfOilAndGasPropertiesWithProvedReserves
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62038-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447 + Details
Name: | us-gaap_CostsIncurredAcquisitionOfUnprovedOilAndGasProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447 + Details
Name: | us-gaap_CostsIncurredDevelopmentCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Exploration -URI http://asc.fasb.org/extlink&oid=6512329 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 18 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447 + Details
Name: | us-gaap_CostsIncurredExplorationCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |