Name:	eog_FairValueLiabilitiesMeasuredOnRecurringBasisCrudeOilPriceSwaps
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The expense recorded to reduce the value of oil and gas assets consisting of proved properties as the estimate of future successful production from these properties is reduced.

No definition available.

Name:	eog_ImpairmentChargeForProvedOilAndGasProperties
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

The expense recorded to reduce the value of property, plant and equipment to estimated fair value when circumstances indicate such property, plant and equipment has been impaired and to reduce the value of oil and gas assets consisting of proved properties as the estimate of future successful production from these properties is reduced.

No definition available.

Name:	eog_ImpairmentChargeForProvedOilAndGasPropertiesAndOtherPropertyPlantAndEquipment
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

The expense recorded to reduce the value of oil and gas assets consisting of proved properties as the estimate of future successful production from these properties is reduced.

No definition available.

Name:	eog_ImpairmentChargeForProvedOilAndGasPropertiesPretaxInTrinidad
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The expense recorded to reduce the value of oil and gas assets consisting of proved properties as the estimate of future successful production from these properties is reduced.

No definition available.

Name:	eog_ImpairmentChargeForProvedOilAndGasPropertiesPretaxInUnitedStates
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The expense recorded to reduce the value of oil and gas assets consisting of proved properties as the estimate of future successful production from these properties is reduced.

No definition available.

Name:	eog_ImpairmentChargeForShallowNaturalGasAssetsSoldInCanada
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Financial commodity price swap contract which provides the counterparty option to enter into a price swap contract at a later date.

No definition available.

Name:	eog_NaturalGasSwaptions
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Net dollar amount capitalized on balance sheet representing an enterprise's interests in proved crude oil (including condensate and natural gas liquids) and/or natural gas properties.

No definition available.

Name:	eog_ProvedOilAndGasPropertyCarryingAmount
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair value of proved oil and gas property and other property, plant and equipment as of the balance sheet date.

No definition available.

Name:	eog_ProvedOilAndGasPropertyFairValue
Namespace Prefix:	eog_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AssetsFairValueDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of potential cash payments that could result from the contingent consideration arrangement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph f

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_BusinessAcquisitionContingentConsiderationPotentialCashPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19207-110258

Name:	us-gaap_FairValueAssetsMeasuredOnRecurringBasisDerivativeFinancialInstrumentsAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents the portion of the balance sheet assertion valued at fair value by the entity 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. This item represents contracts related to the exchange of different currencies, including foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into and existing as of the balance sheet date.

No definition available.

Name:	us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: 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=6947722&loc=d3e13433-108611

Name:	us-gaap_InterestRateDerivativeAssetsAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.