XML 75 R58.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Impairment Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties |  |  | $ 376 |  | $ 2,100 |  | $ 518 |
Proved Properties |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties | [1] |  | 20 |  | 1,268 |  | 207 |
Unproved Properties |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties |  | $ 38 | 310 | [2] | 472 | [2] | 220 | [2]
Leasehold Costs of Impairments of Unproved Oil and Gas Properties |  |  |  |  | 252 |  |  |
Other Assets |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Other Assets Impairments Related to Commodity Price-Related Write-Down |  |  |  |  | 72 |  | 90 |
Impairment of Oil and Gas Properties | [3] |  | 28 |  | 300 |  | 91 |
Impairments for Owned and Leased Sand and Crude-by-Rail Assets |  |  |  |  | 228 |  |  |
Inventories |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties |  |  | 13 |  | 0 |  | 0 |
Firm Commitments Contracts |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties [Line Items] |  |  |  |  |  |  |  |
Impairment of Oil and Gas Properties |  |  | $ 5 | [4] | 60 |  | $ 0 |
Canadian Firm Commitment Contracts |  |  |  |  | $ 60 |  |  |
[1] | Impairments to proved oil and gas properties in 2020 included legacy and non-core natural gas and crude oil and combo plays. Impairments to proved oil and gas properties in 2019 included domestic legacy natural gas assets. See Notes 1 and 13.
[2] | Unproved properties with acquisition costs that are not individually significant are aggregated, and the portion of such costs estimated to be nonproductive is amortized over the remaining lease term. Unproved properties with individually significant acquisition costs are reviewed individually for impairment. Impairments of unproved oil and gas properties included $38 million in 2021 for the decision in the fourth quarter of 2021 to exit Block 36 and Block 49 in Oman. Impairments of unproved oil and gas properties included charges of $252 million in 2020 for certain leasehold costs that are no longer expected to be developed before expiration in the United States. See Note 1.
[3] | Includes impairment charges for owned and leased sand and crude-by-rail assets of $228 million in 2020 (see Note 18) and a commodity price-related write-down of other assets of $72 million and $90 million in 2020 and 2019, respectively (see Note 13).
[4] | Includes impairment charges of $60 million in 2020 for firm commitment contracts related to its decision to exit the Horn River Basin in British Columbia, Canada.

X
- Definition Canadian Firm Commitment Contracts + References No definition available. + Details
Name: | eog_CanadianFirmCommitmentContracts
Namespace Prefix: | eog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairment of Oil and Gas Properties line items + References No definition available. + Details
Name: | eog_ImpairmentOfOilAndGasPropertiesLineItems
Namespace Prefix: | eog_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Impairments for Owned and Leased Sand and Crude-by-Rail Assets + References No definition available. + Details
Name: | eog_ImpairmentsForOwnedAndLeasedSandAndCrudeByRailAssets
Namespace Prefix: | eog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Impairments of unproved oil and gas properties of leasehold costs no longer expected to be developed + References No definition available. + Details
Name: | eog_LeaseholdCostsOfImpairmentsOfUnprovedOilAndGasProperties
Namespace Prefix: | eog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other Assets Impairments Related to Commodity Price-Related Write-Down + References No definition available. + Details
Name: | eog_OtherAssetsImpairmentsRelatedToCommodityPriceRelatedWriteDown
Namespace Prefix: | eog_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -Section 35 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466 + Details
Name: | us-gaap_ImpairmentOfOilAndGasProperties
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | eog_ImpairmentOfOilAndGasPropertiesAxis=eog_ProvedPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eog_ImpairmentOfOilAndGasPropertiesAxis=eog_UnprovedPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eog_ImpairmentOfOilAndGasPropertiesAxis=eog_ImpairmentsOtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eog_ImpairmentOfOilAndGasPropertiesAxis=eog_ImpairedInventoriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eog_ImpairmentOfOilAndGasPropertiesAxis=eog_FirmCommitmentsContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |