XML 121 R96.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Accounting for Suspended Exploratory Wells - Aging of Costs on a Well and Project Basis (Details) $ in Millions | Dec. 31, 2018 USD ($) Well Project | Dec. 31, 2017 USD ($) Project | Dec. 31, 2016 USD ($) Project
--- | --- | --- | ---
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 3,361 | $ 3,395 | $ 3,095
Capitalized exploratory well costs that have been capitalized for period greater than one year, number of wells | Well | 153 |  |
Number of projects (in projects) | Project | 30 | 32 | 35
1998-2007 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 410 |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year, number of wells | Well | 31 |  |
2008-2012 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 1,076 |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year, number of wells | Well | 61 |  |
2013-2017 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 1,875 |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year, number of wells | Well | 61 |  |
2003-2010 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 338 |  |
Number of projects (in projects) | Project | 5 |  |
2011-2014 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 894 |  |
Number of projects (in projects) | Project | 10 |  |
2015-2018 |  |  |
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items] |  |  |
Capitalized exploratory well costs that have been capitalized for period greater than one year | $ 2,129 |  |
Number of projects (in projects) | Project | 15 |  |

X
- Definition Exploratory Wells That Have Been Capitalized For Period Greater Than One Year, Number Of Wells With Multiple Completions, Gross + References No definition available. + Details
Name: | cvx_ExploratoryWellsThatHaveBeenCapitalizedForPeriodGreaterThanOneYearNumberOfWellsWithMultipleCompletionsGross
Namespace Prefix: | cvx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph b -URI http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447 + Details
Name: | us-gaap_CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The number of projects for which exploratory well costs have been capitalized for a period of greater than one year after the completion of drilling. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph b -URI http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447 + Details
Name: | us-gaap_ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ProjectsWithExploratoryWellCostsCapitalizedForMoreThanOneYearLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=us-gaap_AgingOfCapitalizedExploratoryWellCostsPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=us-gaap_AgingOfCapitalizedExploratoryWellCostsPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=us-gaap_AgingOfCapitalizedExploratoryWellCostsPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=us-gaap_AgingOfCapitalizedExploratoryWellCostsPeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=us-gaap_AgingOfCapitalizedExploratoryWellCostsPeriodFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AgingOfCapitalizedExploratoryWellCostsAxis=cvx_AgingOfCapitalizedExploratoryWellCostsPeriodSixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |