Charges to expense for cash bonuses.

No definition available.

Name:	cvx_ChargesToExpenseForCashBonuses
Namespace Prefix:	cvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Company's pension plans as percentage of pension assets.

+ References

No definition available.

+ Details

Name:	cvx_CompanysPensionPlansAsPercentageOfPensionAssets
Namespace Prefix:	cvx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Benefit Plan Trusts [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanBenefitPlanTrustsAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Contributions and Payments [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanContributionsAndPaymentsAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Expected Return on Plan Assets [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanExpectedReturnOnPlanAssetsAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Other Assumptions [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanOtherAssumptionsAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques, Market Valuation Period Prior to Year-end Measurement Date

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanPlanAssetsAtFairValueValuationTechniquesMarketValuationPeriodPriorToYearEndMeasurementDate
Namespace Prefix:	cvx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Defined Benefit Plan, Primary Investment [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_DefinedBenefitPlanPrimaryInvestmentAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Employee Incentive Plan [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_EmployeeIncentivePlanAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Employee Savings Investment Plan [Abstract]

+ References

No definition available.

+ Details

Name:	cvx_EmployeeSavingsInvestmentPlanAbstract
Namespace Prefix:	cvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum annual increase percentage to Company contribution for retiree medical coverage.

+ References

No definition available.

+ Details

Name:	cvx_MaximumAnnualIncreasePercentageToCompanyContributionForRetireeMedicalCoverage
Namespace Prefix:	cvx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of treasury stocks held in the benefit plan trust for funding obligations.

+ References

No definition available.

+ Details

Name:	cvx_NumberOfTreasuryStocksHeldInBenefitPlanTrustForFundingObligations
Namespace Prefix:	cvx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of domestic pension plan assets relative to pension plan assets.

+ References

No definition available.

+ Details

Name:	cvx_PercentageOfDomesticPensionPlanAssetsRelativeToPensionPlanAssets
Namespace Prefix:	cvx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Various grantor trust assets invested primarily in interest-earning accounts.

+ References

No definition available.

+ Details

Name:	cvx_VariousGrantorTrustAssetsInvestedPrimarilyInInterestEarningAccounts
Namespace Prefix:	cvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

+ Details

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

- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 10A
-Subparagraph (i-k)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (j)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

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

- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(ii)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(iv)(01)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanUltimateHealthCareCostTrendRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPensionPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cvx_FixedIncomeAndCashAndCashEquivalentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_RealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=cvx_OtherPlanAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanCashMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=us-gaap_ForeignPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RetirementPlanSponsorLocationAxis=country_GB
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Maximum annual increase percentage to company contribution for retiree medical coverage	4.00%
Funded Status:
Amounts recognized on a before-tax bases in "Accumulated other comprehensive loss" for the company's pension and other postretirement benefit plans	$ 4,979	$ 7,278
Other Benefit Assumptions:
Assumed health care cost-trend rates in the next fiscal year	6.20%	6.10%
Ultimate trend rate for health care cost	4.50%	4.50%
Primary Investment:
Company's US and UK pension plans as a percentage of total pension assets	94.00%
Benefit Plan Trusts:
Number of Chevron treasury stocks held in benefit plan trust for funding obligations	14,168,000	14,168,000	14,168,000	14,168,000
Various grantor trust assets invested primarily in interest earning accounts	$ 36	$ 36
Employee Incentive Plan
Charges to expense for cash bonuses	1,165	462	$ 826
Other Benefits
Funded Status:
Amounts recognized on a before-tax bases in "Accumulated other comprehensive loss" for the company's pension and other postretirement benefit plans	$ (25)	$ 74
Discount Rate:
Discount rate for pension plans	2.90%	2.60%	3.20%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 146	$ 155
Estimated contributions to employee pension plans for the next fiscal year	150
ESIP
Employee Savings Investment Plan:
Compensation expense	$ 252	281	$ 284
U.S.
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	6.50%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 1,552
Estimated contributions to employee pension plans for the next fiscal year	1,100
U.S. \| Pension Benefits
Funded Status:
Amounts recognized on a before-tax bases in "Accumulated other comprehensive loss" for the company's pension and other postretirement benefit plans	4,009	5,717
Accumulated benefit obligations pension plans	$ 11,337	$ 13,608
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	6.50%	6.50%	6.80%
Percentage of US pension plan assets relative to total pension plan assets	67.00%
Plan asset market valuation period, prior to year-end measurement date	3 months
Discount Rate:
Discount rate for pension plans	2.80%	2.40%	3.10%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 1,552	$ 950
U.S. \| Pension Benefits \| Equities \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	40.00%
U.S. \| Pension Benefits \| Equities \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	65.00%
U.S. \| Pension Benefits \| Fixed Income and Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	20.00%
U.S. \| Pension Benefits \| Fixed Income and Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	40.00%
U.S. \| Pension Benefits \| Real Estate \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
U.S. \| Pension Benefits \| Real Estate \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	15.00%
U.S. \| Pension Benefits \| Other \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
U.S. \| Pension Benefits \| Other \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
U.S. \| Pension Benefits \| Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
U.S. \| Pension Benefits \| Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	25.00%
Int’l.
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 199
Estimated contributions to employee pension plans for the next fiscal year	200
Int’l. \| Pension Benefits
Funded Status:
Amounts recognized on a before-tax bases in "Accumulated other comprehensive loss" for the company's pension and other postretirement benefit plans	995	1,487
Accumulated benefit obligations pension plans	$ 4,976	$ 5,758
Expected Return on Plan Assets:
Estimated long-term rate of return on US pension plan assets	3.50%	4.50%	5.60%
Discount Rate:
Discount rate for pension plans	2.80%	2.40%	3.20%
Cash Contributions and Benefit Payments:
Contributions to employee pension plans	$ 199	$ 263
UNITED KINGDOM \| Pension Benefits \| Equities \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	10.00%
UNITED KINGDOM \| Pension Benefits \| Equities \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	30.00%
UNITED KINGDOM \| Pension Benefits \| Fixed Income and Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	55.00%
UNITED KINGDOM \| Pension Benefits \| Fixed Income and Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	85.00%
UNITED KINGDOM \| Pension Benefits \| Real Estate \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%
UNITED KINGDOM \| Pension Benefits \| Real Estate \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	15.00%
UNITED KINGDOM \| Pension Benefits \| Cash \| Minimum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	0.00%
UNITED KINGDOM \| Pension Benefits \| Cash \| Maximum
Primary Investment:
Pension Plan - Board of Trustees approved asset allocation	5.00%