Statement of Cash Flows [Abstract]
Operating Activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income (Loss)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Adjustments
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, depletion and amortization
Depreciation, Depletion and Amortization
Dry hole expense
Other Noncash Expense
Distributions less than income from equity affiliates
Income (Loss) from Equity Method Investments, Net of Dividends or Distributions
Net before-tax gains on asset retirements and sales
Gain (Loss) on Disposition of Property Plant Equipment
Net foreign currency effects
Foreign Currency Transaction Gain (Loss), Unrealized
Deferred income tax provision
Deferred Income Taxes and Tax Credits
Net decrease (increase) in operating working capital
Increase (Decrease) in Operating Capital
Increase in long-term receivables
Increase (Decrease) in Long-term Receivables, Current
(Increase) decrease in other deferred charges
Increase (Decrease) in Deferred Charges
Cash contributions to employee pension plans
Payment for Pension Benefits
Other
Other Noncash Income (Expense)
Net Cash Provided by Operating Activities
Net Cash Provided by (Used in) Operating Activities
Investing Activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures
Payments to Acquire Productive Assets
Proceeds and deposits related to asset sales
Proceeds from Sale of Productive Assets
Net maturities of time deposits
Increase (Decrease) in Time Deposits
Net sales of marketable securities
Proceeds from Sale and Maturity of Marketable Securities
Net borrowing of loans by equity affiliates
Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties
Net (purchases) sales of other short-term investments
Payments for (Proceeds from) Short-term Investments
Net Cash Used for Investing Activities
Net Cash Provided by (Used in) Investing Activities
Financing Activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net (repayments) borrowings of short-term obligations
Proceeds from (Repayments of) Short-term Debt
Proceeds from issuances of long-term debt
Proceeds from Issuance of Long-term Debt
Repayments of long-term debt and other financing obligations
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities
Cash dividends - common stock
Payments of Ordinary Dividends, Common Stock
Distributions to noncontrolling interests
Payments of Ordinary Dividends, Noncontrolling Interest
Net sales of treasury shares
Proceeds from (Repurchase of) Equity
Net Cash (Used for) Provided by Financing Activities
Net Cash Provided by (Used in) Financing Activities
Effect of Exchange Rate Changes on Cash and Cash Equivalents
Effect of Exchange Rate on Cash and Cash Equivalents
Net Change in Cash and Cash Equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and Cash Equivalents at January 1
Cash and Cash Equivalents, at Carrying Value
Cash and Cash Equivalents at December 31
Accounting for Suspended Exploratory Wells [Abstract]
Accounting for suspended exploratory wells.
Changes in company's suspended exploratory well costs
Suspended Well Costs Disclosure [Table Text Block]
Suspended well costs disclosure.
Aging of capitalized well costs and number of project
Schedule of Aging of Capitalized Exploratory Well Costs [Table Text Block]
Aging of Costs on Well and Project Basis
Aging Costs on Well and Project Basis [Table Text Block]
Aging costs on well and project basis.
Retirement Benefits [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
Pension Benefits
Pension Plan [Member]
Defined Benefit Plan, Asset Categories [Axis]
Defined Benefit Plan, Asset Categories [Axis]
Plan Asset Categories [Domain]
Plan Asset Categories [Domain]
U.S.
Domestic Equity Securities [Member]
Domestic Equity Securities.
International
International Equity Securities [Member]
International Equity Securities [Member]
Collective Trusts/Mutual Funds
Collective Trusts Mutual Funds Equity Securities [Member]
Collective Trusts Mutual Funds Equity Securities.
Government
US Treasury and Government [Member]
Corporate
Corporate Debt Securities [Member]
Bank Loans
Bank Loan Obligations [Member]
Mortgage/Asset Backed
Collateralized Mortgage Backed and Assets Baked Securities [Member]
Collateralized Mortgage Backed and Assets Baked Securities [Member]
Collective Trusts/Mutual Funds
Collective Trusts Mutual Funds Debt Securities [Member]
Collective Trusts Mutual Funds Debt Securities.
Mixed Funds
Mutual Funds Plan Assets [Member]
Mutual Funds Plan Assets.
Real Estate
Real Estate [Member]
Alternative Investments
Alternative Investments [Member]
Alternative Investments [Member]
Cash and Cash Equivalents
Cash and Cash Equivalents [Member]
Other
Other Plan Assets [Member]
Other Plan Assets.
Retirement Plan Sponsor Location [Domain]
Retirement Plan Sponsor Location [Domain]
U.S.
UNITED STATES
Int’l.
Foreign Plan [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Level 3
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Disclosure [Line Items]
Fair Value Measurements of Company's Pension Plans
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Fair value of plan assets
Defined Benefit Plan, Fair Value of Plan Assets
NAV
Alternative Investment, Fair Value Disclosure
Investment in company's common stock
Investment in Company's Common Stock
Investment in company's common stock.
Noncontrolling Interest [Abstract]
Noncontrolling Interest [Table]
Noncontrolling Interest [Table]
Statement, Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Noncontrolling Interests
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest [Line Items]
Activity for equity attributable to noncontrolling interests
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at January 1
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Distributions to noncontrolling interests
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Other changes, net
Stockholders' Equity, Other
Balance at December 31
Commitments and Contingencies Disclosure [Abstract]
Other Contingencies and Commitments
Commitments and Contingencies Disclosure [Text Block]
Segment Reporting [Abstract]
Segment Earnings
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
Segment Assets
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
Segment Sales and Other Operating Revenues
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]
Segment income tax expense
Segment income tax expense [Table Text Block]
Segment income tax expense.
Projects with Exploratory Well Costs Capitalized for More than One Year [Table]
Projects with Exploratory Well Costs Capitalized for More than One Year [Table]
Aging of Capitalized Exploratory Well Costs [Axis]
Aging of Capitalized Exploratory Well Costs [Axis]
Aging of Capitalized Exploratory Well Costs, Period Range [Domain]
Aging of Capitalized Exploratory Well Costs, Period Range [Domain]
1998-2006
Aging of Capitalized Exploratory Well Costs, Period One [Member]
2007-2011
Aging of Capitalized Exploratory Well Costs, Period Two [Member]
2012-2016
Aging of Capitalized Exploratory Well Costs, Period Three [Member]
2003-2009
Aging of Capitalized Exploratory Well Costs, Period Four [Member]
2010-2013
Aging of Capitalized Exploratory Well Costs, Period Five [Member]
2014-2017
Aging Of Capitalized Exploratory Well Costs, Period Six [Member]
Period five representing second most current aging period of capitalized exploratory well costs which have been capitalized greater than one year.
Projects with Exploratory Well Costs Capitalized for More than One Year [Line Items]
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
Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year
Capitalized exploratory well costs that have been capitalized for period greater than one year, number of wells
Exploratory Wells That Have Been Capitalized For Period Greater Than One Year, Number Of Wells With Multiple Completions, Gross
Exploratory Wells That Have Been Capitalized For Period Greater Than One Year, Number Of Wells With Multiple Completions, Gross
Number of projects (in projects)
Projects that have Exploratory Well Costs that have been Capitalized for Period Greater than One Year, Number of Projects
Income Statement [Abstract]
Includes excise, value-added and similar taxes
Excise and Sales Taxes
Debt Disclosure [Abstract]
Short-Term Debt
Short-term Debt [Text Block]
Document and Entity Information [Abstract]
Document and entity information.
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
Amendment Flag
Amendment Flag
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Entity Voluntary Filers
Entity Voluntary Filers
Entity Current Reporting Status
Entity Current Reporting Status
Entity Filer Category
Entity Filer Category
Entity Public Float
Entity Public Float
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Other Contingencies and Commitments [Table]
Other Contingencies and Commitments [Table]
Other Contingencies and Commitments.
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature [Domain]
Financing Arrangement
Financing Arrangement [Member]
Financing Arrangement [Member]
Affiliates
Affiliates [Member]
Affiliates.
Statement, Geographical [Axis]
Geographical [Axis]
Segment, Geographical [Domain]
Geographical [Domain]
United States
International
Non-US [Member]
Other Contingencies and Commitments [Axis]
Other Contingencies and Commitments [Axis]
Other Contingencies and Commitments.
Other Contingencies and Commitments [Domain]
Other Contingencies and Commitments [Domain]
Other contingencies and commitments.
Other Businesses [Member]
Other Businesses [Member]
Other businesses.
Sites with Potential Remediation Activities [Member]
Sites with Potential Remediation Activities [Member]
Sites with potential remediation activities.
Environmental Reserve Less Environmental Reserve for Sites with Potential Remediation Activities [Member]
Environmental Reserve Less Environmental Reserve for Sites with Potential Remediation Activities [Member]
Environmental reserve less environmental reserve for sites with potential remediation activities.
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Downstream
Downstream Equipment [Member]
Upstream
Upstream Equipment [Member]
Other Contingencies and Commitments [Line Items]
Other Contingencies and Commitments [Line Items]
Other contingencies and commitments.
Guarantees
Guarantees [Abstract]
Number of guarantees
Number of Guarantees
Number of Guarantees
Guarantee for payments under terminal use agreements
Guarantor Obligations, Current Carrying Value
Term of guarantee for payments under terminal use agreement (in years)
Guarantor Obligations, Remaining Term
Guarantor Obligations, Remaining Term
Idemnifications
Idemnifications [Abstract]
Idemnifications [Abstract]
Indemnifications acquirer environmental liabilities, maximum obligation
Indemnifications Acquired Company Environ Liabilities Max Obligation
Indemnifications acquired company environ liabilities max obligation.
Long-Term Unconditional Purchase Obligations and Commitments, Including Throughput and Take-or-Pay Agreements
Unconditional Purchase Obligations (Excluding Capital Stock Redemptions) [Abstract]
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2018
Recorded Unconditional Purchase Obligation Due in Next Twelve Months
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2019
Recorded Unconditional Purchase Obligation Due in Second Year
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2020
Recorded Unconditional Purchase Obligation Due in Third Year
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2021
Recorded Unconditional Purchase Obligation Due in Fourth Year
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2022
Recorded Unconditional Purchase Obligation Due in Fifth Year
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in 2023 and after
Recorded Unconditional Purchase Obligation Due after Fifth Year
Total payments under long term unconditional purchase obligations and commitments including throughput and Take-or-Pay agreements
Payments made under long term unconditional purchase obligations and commitments including throughput and Take or Pay Agreements
Payments made under long term unconditional purchase obligations and commitments including throughput and take or pay agreements.
Environmental
Components of Environmental Loss Accrual [Abstract]
Environmental reserve
Accrual for Environmental Loss Contingencies, Component Amount
Environmental reserve balance
Accrual for Environmental Loss Contingencies
Sites with potential remediation activities (in sites)
Sites with Potential Remediation Activities
Sites with potential remediation activities.
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Consolidated Balance Sheet: Fair Value of Derivatives not Designated as Hedging Instruments
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Consolidated Statement of Income: The Effect of Derivatives not Designated as Hedging Instruments
Derivative Instruments, Gain (Loss) [Table Text Block]
Consolidated Balance Sheet: The Effect of Netting Derivative Assets
Offsetting Assets [Table Text Block]
Consolidated Balance Sheet: The Effect of Netting Derivative Liabilities
Offsetting Liabilities [Table Text Block]
Assets Held For Sale [Abstract]
Assets Held For Sale [Abstract]
Assets Held For Sale
Assets Held For Sale Disclosure [Text Block]
Assets Held For Sale Disclosure [Text Block]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Segment Reconciling Items
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Net income (loss) attributable to Chevron Corporation
Net Income (Loss) Attributable to Parent
Interest expense
Interest Expense
Interest income
Investment Income, Interest
Other
Segment Earnings, Other Income Expense
Segment earnings, other income (expense).
Accounting Policies [Abstract]
General
Basis of Accounting, Policy [Policy Text Block]
Subsidiary and Affiliated Companies
Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block]
Fair Value Measurements
Fair Value Measurement, Policy [Policy Text Block]
Derivatives
Derivatives, Policy [Policy Text Block]
Short-Term Investments
Short Term Investments [Policy Text Block]
Short Term Investments Policy.
Inventories
Inventory, Policy [Policy Text Block]
Properties, Plant and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Goodwill
Goodwill and Intangible Assets, Policy [Policy Text Block]
Environmental Expenditures
Environmental Costs, Policy [Policy Text Block]
Currency Translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Revenue Recognition
Revenue Recognition, Policy [Policy Text Block]
Stock Options and Other Share-Based Compensation
Compensation Related Costs, Policy [Policy Text Block]
Noncontrolling Interests
Consolidation, Policy [Policy Text Block]
Segment Reporting
Segment Reporting, Policy [Policy Text Block]
Uncertain Income Tax Positions
Income Tax, Policy [Policy Text Block]
Accounting for Suspended Exploratory Wells
Exploratory Drilling Costs Capitalization and Impairment, Policy [Policy Text Block]
New Accounting Standards
New Accounting Pronouncements, Policy [Policy Text Block]
Property, Plant and Equipment [Abstract]
Properties, Plant and Equipment
Property, Plant and Equipment [Table Text Block]
Operating Segments and Geographic Data
Segment Reporting Disclosure [Text Block]
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instrument Risk [Axis]
Derivative Instrument [Axis]
Derivative Contract Type [Domain]
Derivative Contract [Domain]
Commodity
Commodity Contract [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Sales and other operating revenues
Sales [Member]
Purchased crude oil and products
Purchased crude oil and products [Member]
Purchased crude oil and products.
Other income
Other Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative instruments not designated as hedging instruments, gain (loss), net
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Australia
AUSTRALIA
Nigeria
NIGERIA
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Property, plant and equipment
Property, Plant and Equipment, Net
Dry hole expense related to prior years expenditures, net
Dry Hole Expense Related to Prior Year Net
Dry hole expense related to prior year net.
Accretion expense
Accretion Expense
Impairment charges
Asset Impairment Charges
Accounting for Suspended Exploratory Wells
Suspended Well Costs Disclosure [Text Block]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Held-for-sale [Member]
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets held for sale
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment
Income Tax Disclosure [Abstract]
Changes to company's unrecognized tax benefits
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at January 1
Unrecognized Tax Benefits
Foreign currency effects
Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation
Foreign currency effects
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation
Additions based on tax positions taken in current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Additions for tax positions taken in prior years
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Reductions for tax positions taken in prior years
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Settlements with taxing authorities in current year
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities
Reductions as a result of a lapse of the applicable statute of limitations
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations
Balance at December 31
Income Tax Authority [Table]
Income Tax Authority [Table]
Income tax authority.
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
United States
Domestic Tax Authority [Member]
International
Foreign Tax Authority [Member]
Income Tax Authority [Line Items]
Income Tax Authority [Line Items]
Income tax authority.
Excise and similar taxes on products and merchandise
Import duties and other levies
Taxes, Other
Property and other miscellaneous taxes
Real Estate Tax Expense
Payroll taxes
Payroll Taxes
Payroll taxes.
Taxes on production
Production Tax Expense
Total taxes other than on income
Taxes Other than on Income
Taxes other than on income.
Summarized Financial Data of Subsidiary One [Abstract]
Summarized financial data - Chevron USA Inc.
Summarized Financial Data - Chevron U.S.A. Inc.
Summarized Financial Data of Subsidiary [Text Block]
Summarized financial data of subsidiary.
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]
Investments and Advances
Investments in and Advances to Affiliates, Schedule of Investments [Text Block]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Earnings Per Share [Abstract]
Earnings Per Share
Earnings Per Share [Text Block]
Offsetting Assets [Abstract]
Offsetting Derivative Assets [Abstract]
Derivative Asset, Gross Amount Recognized
Derivative Asset, Fair Value, Gross Asset
Derivative Asset, Gross Amounts Offset
Derivative Asset, Fair Value, Gross Liability
Derivative Asset, Net Amounts Presented
Derivative Asset
Derivative Asset, Gross Amounts Not Offset
Derivative Asset, Not Subject to Master Netting Arrangement Deduction
Derivative Asset, Net Amount
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Offsetting Liabilities [Abstract]
Offsetting Derivative Liabilities [Abstract]
Derivative Liability, Gross Amount Recognized
Derivative Liability, Fair Value, Gross Liability
Derivative Liability, Gross Amounts Offset
Derivative Liability, Fair Value, Gross Asset
Derivative Liability, Net Amounts Presented
Derivative Liability
Derivative Liability, Gross Amounts Not Offset
Derivative Liability, Not Subject to Master Netting Arrangement Deduction
Derivative Liability, Net Amount
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Summarized Financial Data of Affiliate [Abstract]
Summarized financial data of affiliate.
Schedule of Affiliate Financial Statements [Table]
Schedule of Affiliate Financial Statements [Table]
Schedule Of Affiliate Financial Statements.
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Tengizchevroil LLP
Tengizchevroil LLP [Member]
Tengizchevroil LLP.
Affiliate Statements Captions [Line Items]
Affiliate Statements Captions [Line Items]
Affiliate Statements Captions.
Current assets
Equity Method Investment, Summarized Financial Information, Current Assets
Other assets
Equity Method Investment, Summarized Financial Information, Noncurrent Assets
Current liabilities
Equity Method Investment, Summarized Financial Information, Current Liabilities
Other liabilities
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities
Total net equity
Equity Method Investment Summarized Financial Information, Equity
Activity for equity attributable to noncontrolling interests
Activity for Equity Attributable to Noncontrolling Interests [Table Text Block]
Activity for equity attributable to noncontrolling interests.
Debt Instrument [Table]
Schedule of Long-term Debt Instruments [Table]
Triggering Event [Axis]
Triggering Event [Axis]
Triggering Event [Axis]
Triggering Event [Domain]
Triggering Event [Domain]
[Domain] for Triggering Event [Axis]
Expiring in December 2017
Expiring in December 2017 [Member]
Expiring in December 2017 [Member]
Expiring in December 2020
Expiring in December 2020 [Member]
Expiring in December 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Weighted-average interest rates of commercial paper
Debt Instrument, Interest Rate, Effective Percentage
Committed credit facilities
Line of Credit Facility, Maximum Borrowing Capacity
Debt instrument, term
Debt Instrument, Term
Reclassified to long-term debt
Short-term Debt, Refinanced, Amount
Bank Loans
Bank Loans [Member]
Bank Loans [Member]
The effect of fair-value measurements using significant unobservable inputs on changes in Level 3 plan assets for the period are outlined below
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Beginning Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Actual Return on Plan Assets:
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) [Abstract]
Assets held at the reporting date
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held
Assets sold during the period
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Sold
Purchases, Sales and Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)
Transfers in and/or out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net
Ending Balance
Income (loss) before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract]
United States
Income (Loss) from Continuing Operations before Income Taxes, Domestic
International
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Income (Loss) Before Income Tax Expense
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Theoretical tax (at U.S. statutory rate of 35%)
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Effect of U.S. tax reform
Effective Income Tax Rate Reconciliation,Tax Cuts and Jobs Act of 2017, Amount
Amount of reported income tax expense (benefit) in excess
of (less than) expected income tax expense (benefit)
computed by applying domestic federal statutory income
tax rate to pretax income (loss) from continuing
operations, attributable to increase (decrease) in income
tax rate and transition tax on accumulated earnings of
controlled foreign corporation deemed repatriated
pursuant to Tax Cuts and Jobs Act of 2017.
Equity affiliate accounting effect
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary, Amount
Effect of income taxes from international operations
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
State and local taxes on income, net of U.S. federal income tax benefit
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Prior year tax adjustments, claims and settlements
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
Other U.S.
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
Total income tax expense (benefit)
Income Tax Expense (Benefit)
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
U.S. statutory tax rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Composition of deferred tax balances
Components of Deferred Tax Assets and Liabilities [Abstract]
Deferred tax liabilities
Deferred Tax Liabilities, Gross [Abstract]
Properties, plant and equipment
Deferred Tax Liabilities, Property, Plant and Equipment
Investments and other
Deferred Tax Liabilities, Other
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Deferred tax assets
Deferred Tax Assets, Gross [Abstract]
Foreign tax credits
Deferred Tax Assets, Tax Credit Carryforwards, Foreign
Asset retirement obligations/environmental reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations
Employee benefits
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits
Deferred credits
Deferred Tax Assets, Deferred Income
Tax loss carryforwards
Deferred Tax Assets, Operating Loss Carryforwards
Other accrued liabilities
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities
Inventory
Deferred Tax Assets, Inventory
Miscellaneous
Deferred Tax Assets, Other
Total deferred tax assets
Deferred Tax Assets, Gross
Deferred tax assets valuation allowance
Deferred Tax Assets, Valuation Allowance
Total deferred taxes, net
Deferred Tax Liabilities, Net
Classification of deferred taxes
Deferred Tax Assets, Net, Classification [Abstract]
Deferred charges and other assets
Deferred Tax Components of Deferred Charges and Other Assets
Deferred tax components of deferred charges and other assets .
Noncurrent deferred income taxes
Deferred Income Tax Liabilities, Net
Noncontrolling Interests
Noncontrolling Interest Disclosure [Text Block]
Summarized Financial Data of Subsidiary Two [Abstract]
Summarized financial data - Chevron transport corporation.
Schedule of Subsidiary Financial Statements [Table]
Schedule of Subsidiary Financial Statements [Table]
Schedule of subsidiary financial statements.
Chevron Phillips Chemical Company LLC
Chevron Phillips Chemical Company LLC [Member]
Chevron Phillips Chemical Company LLC.
Subsidiary Statements Captions [Line Items]
Subsidiary Statements Captions [Line Items]
Subsidiary statements captions.
Equity method investment, ownership percentage
Equity Method Investment, Ownership Percentage
Percentage of affiliate by summarized financial information
Percentage of Affiliate by Summarized Financial Information
Percentage of affiliate by summarized financial information.
Summarized Financial Data - Chevron Transport Corporation
Statement of Income Subsidiary Two [Abstract]
Statement of income subsidiary.
Sales and other operating revenues
Oil and Gas Revenue
Total costs and other deductions
Costs and Expenses
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value by Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Nonrecurring basis
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Properties, plant and equipment, net (held and used)
Property, Plant, and Equipment, Fair Value Disclosure
Properties, plant and equipment, net (held for sale)
Assets Held-for-sale, Long Lived, Fair Value Disclosure
Investments and advances
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures, Fair Value Disclosure
Total nonrecurring assets at fair value
Assets, Fair Value Disclosure, Nonrecurring
Properties, plant and equipment, net (held and used), Before-Tax Loss
Property Plant and Equipment Fair Value before Tax Loss
Property plant and equipment fair value before tax loss.
Properties, plant and equipment, net (held for sale), Before-Tax Loss
Assets Held for Sale Long Lived Fair Value before Tax Loss
Assets held for sale long lived fair value before tax loss.
Investments and advances, Before-Tax Loss
Fair Value Investments and Advances before Tax Loss
Fair value investments and advances before tax loss.
Total nonrecurring assets at fair value, Before-Tax Loss
Assets Fair Value Before Tax Loss
Assets Fair Value Before Tax Loss.
Taxes on income
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Reconciliation between the U.S. statutory federal income tax rate and the company's effective income tax rate
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Composition of deferred tax balances
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Classification of deferred taxes
Classification of Deferred Taxes [Table Text Block]
Classification of deferred taxes.
Changes to the Company's unrecognized tax benefits
Summary of Income Tax Contingencies [Table Text Block]
Taxes other than on income
Taxes Other Than on Income [Table Text Block]
Taxes other than on income.
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Changes to the Company's Before-tax Asset Retirement Obligation
Schedule of Change in Asset Retirement Obligation [Table Text Block]
Leases [Abstract]
Lease Commitments
Leases of Lessee Disclosure [Text Block]
Equity [Abstract]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Chevron Long-Term Incentive Plan (LTIP)
Chevron Long-Term Incentive Plan (LTIP) [Member]
Chevron Long-Term Incentive Plan (LTIP) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Company's share of undistributed earnings for equity affiliates
Retained Earnings, Undistributed Earnings from Equity Method Investees
Shares remaining available for issuance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant
Shares available for issuance (in shares)
Common Stock, Capital Shares Reserved for Future Issuance
Short term borrowings
Short-term Debt [Abstract]
Commercial Paper
Commercial Paper
Notes payable to banks and others with originating terms of one year or less
Short-term Bank Loans and Notes Payable
Current maturities of long-term debt
Long-term Debt, Current Maturities
Current maturities of long-term capital leases
Current Maturities of Long Term Capital Leases
Current maturities of long term capital leases.
Redeemable long term obligations - Long-term debt
Redeemable Long Term Debt
Redeemable long term debt.
Redeemable long term obligations - Capital leases
Other Short-term Borrowings
Subtotal
Debt, Current
Reclassified to long-term debt
Total short-term debt
Short-term Debt
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Other Financial Information
Additional Financial Information Disclosure [Text Block]
Schedule of Equity Method Investments [Table]
Schedule of Equity Method Investments [Table]
All Other
Corporate, Non-Segment [Member]
Variable Interest Entities by Classification of Entity [Axis]
Variable Interest Entities [Axis]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Classification [Domain]
Petropiar
Petropiar [Member]
Petropiar.
Caspian Pipeline Consortium
Caspian Pipeline Consortium [Member]
Caspian Pipeline Consortium.
Petroboscan
Petroboscan [Member]
Petroboscan.
Angola LNG Limited
Angola LNG Limited [Member]
Angola LNG Limited.
GS Caltex Corporation
Gs Caltex Corporation [Member]
GS Caltex Corporation.
Caltex Australia Limited
Caltex Australia Limited [Member]
Caltex Australia Limited.
Other
Other Vie [Member]
Other VIE.
Investment [Axis]
Investment [Axis]
Investment [Domain]
Investment [Domain]
Investments and Advances
Investments and Advances [Member]
Investments and Advances.
Equity in Earnings
Equity in Earnings [Member]
Equity in Earnings.
Schedule of Equity Method Investments [Line Items]
Schedule of Equity Method Investments [Line Items]
Investments and Advances
Equity Method Investments
Other at or below cost
Cost Method Investments
Total investments and advances
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Equity in Earnings
Income (Loss) from Equity Method Investments
Changes in Accumulated Other Comprehensive Losses
Comprehensive Income (Loss) Note [Text Block]
Valuation Allowance [Table]
Valuation Allowance [Table]
Valuation Allowance by Deferred Tax Asset [Axis]
Valuation Allowance by Deferred Tax Asset [Axis]
Deferred Tax Asset [Domain]
Deferred Tax Asset [Domain]
Property, Plant and Equipment
Property, Plant and Equipment [Member]
Asset Retirement Obligation
Asset Retirement Obligation Costs [Member]
Valuation Allowance [Line Items]
Valuation Allowance [Line Items]
Decrease in deferred tax liabilities
Increase (Decrease) in Deferred Tax Liabilities
Increase (Decrease) in Deferred Tax Liabilities
Decrease in deferred tax assets
Increase (Decrease) in Deferred Tax Assets
Increase (Decrease) in Deferred Tax Assets
Decrease in income tax benefit
Decrease in Income Tax Benefit
Decrease in Income Tax Benefit
Income tax expense (benefit)
Effect of change in U.S. tax rate
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount
Effective tax rate
Loss carry forward
Operating Loss Carryforwards
Tax credit carryforward
Tax Credit Carryforward, Amount
Carry forward amount of foreign tax credit with expiration dates
Undistributed earnings of international consolidated subsidiaries and affiliates for which no deferred income tax provision has been made for future remittances
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Existing Undistributed Accumulated Earnings of Foreign Subsidiary
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Existing Undistributed Accumulated Earnings of Foreign Subsidiary
Percentage of impact of unrecognized tax benefits on effective tax rate if subsequently recognized
Percentage of Impact of Unrecognized Tax Benefits on Effective Tax Rate if Subsequently Recognized
Percentage of impact of unrecognized tax benefits on effective tax rate if subsequently recognized.
Unrecognized tax benefits
Income tax accruals for anticipated interest and penalty obligations
Income Tax Examination, Penalties and Interest Accrued
Income tax benefit expense associated with interest and penalties
Income Tax Examination, Penalties and Interest Expense
Valuation and Qualifying Accounts [Abstract]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation and Qualifying Accounts Disclosure [Table]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves Type [Axis]
Valuation Allowances and Reserves [Domain]
Valuation Allowances and Reserves [Domain]
Employee Termination Benefits [Member]
Business Restructuring Reserves [Member]
Allowance for Doubtful Accounts [Member]
Allowance for Doubtful Accounts [Member]
Deferred Income Tax Valuation Allowance [Member]
Valuation Allowance of Deferred Tax Assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation and Qualifying Accounts Disclosure [Line Items]
Movement in Valuation Allowances and Reserves [Roll Forward]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at January 1
Valuation Allowances and Reserves, Balance
Additions (reductions) charged to expense
Valuation Allowances and Reserves, Additions for Charges to Cost and Expense
Payments/ reductions
Valuation Allowances and Reserves, Deductions
Balance at December 31
Summarized Financial Data - Chevron U.S.A. Inc.
Summarized Financial Data Subsidiary One [Table Text Block]
Summarized financial data subsidiary one.
Summarized Financial Data and its Subsidiary
Summarized Financial Data Subsidiary Net Equity One [Table Text Block]
Schedule one of summarized financial data subsidiary net equity.
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Parent [Member]
Parent [Member]
Preferred Stock
Preferred Stock [Member]
Common Stock
Common Stock [Member]
Capital in Excess of Par
Additional Paid-in Capital [Member]
Retained Earnings
Retained Earnings [Member]
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent [Member]
Currency translation adjustment
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Unrealized net holding (loss) gain on securities
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Net derivatives (loss) gain on hedge transactions
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Pension and other postretirement benefit plans
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Deferred Compensation and Benefit Plan Trust
Deferred Compensation and Benefit Plan Trust [Member]
Deferred compensation and benefit plan trust.
Benefit Plan Trust (Common Stock)
Benefit Plan Trust [Member]
Benefit Plan Trust [Member]
Treasury Stock at Cost
Treasury Stock [Member]
Statement [Line Items]
Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at January 1 (in shares)
Shares, Issued
Cash dividends on common stock
Dividends, Common Stock, Cash
Stock dividends
Dividends, Common Stock, Stock
Tax (charge) benefit from dividends paid on unallocated ESOP shares and other
Employee Stock Ownership Plan (ESOP), Tax Benefit of Dividends Paid to Plan
Change during year
Other Comprehensive Income (Loss), Net of Tax
Purchases (in shares)
Treasury Stock, Shares, Acquired
Purchases
Treasury Stock, Value, Acquired, Cost Method
Issuances - mainly employee benefit plans (in shares)
Stock Issued During Period, Shares, Treasury Stock Reissued
Issuances - mainly employee benefit plans
Stock Issued During Period, Value, Treasury Stock Reissued
Balance at December 31 (in shares)
Supplemental Cash Flow Elements [Abstract]
Net decrease (increase) in operating working capital was composed of the following:
Increase (Decrease) in Operating Capital [Abstract]
(Increase) decrease in accounts and notes receivable
Increase (Decrease) in Accounts and Notes Receivable
(Increase) decrease in inventories
Increase (Decrease) in Inventories
Decrease in prepaid expenses and other current assets
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (decrease) in accounts payable and accrued liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Increase (decrease) in income and other taxes payable
Increase (Decrease) in Income Taxes Payable
Net decrease (increase) in operating working capital
Net cash provided by operating activities includes the following cash payments for interest on debt and for income taxes:
Net Cash Payments for Interest on Debt and Income Taxes Provided by Operating Activities [Abstract]
Net cash payments for interest on debt and income taxes.
Interest on debt (net of capitalized interest)
Interest Paid, Net
Income taxes
Income Taxes Paid
Net sales of marketable securities consisted of the following gross amounts:
Payments for (Proceeds from) Short-term Investments [Abstract]
Marketable securities sold
Marketable Securities Sold
Marketable securities sold.
Net sales of marketable securities
Net maturities of time deposits consisted of the following gross amounts:
Maturities of Time Deposits [Abstract]
Investments in time deposits
Time deposits purchased
Time deposits purchased.
Time deposits matured
Time deposits matured
Time deposits matured.
Net sales (purchases) of time deposits
Net (borrowing) repayment of loans by equity affiliates:
Proceeds from Collection of (Payments to Fund) Long-term Loans to Related Parties [Abstract]
Borrowing of loans by equity affiliates
Payments to Fund Long-term Loans to Related Parties
Repayment of loans by equity affiliates
Proceeds from Collection of Long-term Loans to Related Parties
Net (borrowing) repayment of loans by equity affiliates
Net (purchases) sales of other short-term investments:
Payments for (Proceeds from) Other Short-term Investments [Abstract]
Payments for (Proceeds from) Other Short-term Investments [Abstract]
Purchases of other short-term investments
Payments to Acquire Short-term Investments
Sales of other short-term investments
Proceeds from Sale of Short-term Investments
Net (purchases) sales of other short-term investments
Net borrowings (repayments) of short-term obligations consisted of the following gross and net amounts:
Proceeds from issuances of short-term obligations
Proceeds from Short-term Debt
Repayments of short-term obligations
Repayments of Short-term Debt
Net (repayments) borrowings of short-term obligations with three months or less maturity
Proceeds from (Repayments of) Short-term Debt, Maturing in Three Months or Less
Net (repayments) borrowings of short-term obligations
Capital expenditures
Capital and Exploratory Expenditures, Including Equity Affiliates [Abstract]
Capital and exploratory expenditures, including equity affiliates.
Additions to properties, plant and equipment
Payments to Acquire Oil and Gas Property and Equipment
Additions to investments
Payments to Acquire Interest in Subsidiaries and Affiliates
Current-year dry hole expenditures
Results of Operations, Dry Hole Costs
Payments for other liabilities and assets, net
Payments to Acquire Other Productive Assets
Capital expenditures
Expensed exploration expenditures
Payments to Explore and Develop Oil and Gas Properties
Assets acquired through capital lease obligations and other financing obligations
Payments to Acquire Equipment on Lease
Capital and exploratory expenditures, excluding equity affiliates
Capital and exploratory expenditures, excluding equity affiliates
Capital and exploratory expenditures, excluding equity affiliates.
Company's share of expenditures by equity affiliates
Company's share of expenditures by equity affiliates
Company's share of expenditures by equity affiliates.
Capital and exploratory expenditures, including equity affiliates
Capital and exploratory expenditures, including equity affiliates
Capital and exploratory expenditures, including equity affiliates.
Non-cash additions to properties, plant and equipment
Fair Value of Assets Acquired
Properties, Plant and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Company Before Tax Obligation
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at January 1
Asset Retirement Obligation
Liabilities incurred
Asset Retirement Obligation, Liabilities Incurred
Liabilities settled
Asset Retirement Obligation, Liabilities Settled
Accretion expense
Asset Retirement Obligation, Accretion Expense
Revisions in estimated cash flows
Asset Retirement Obligation, Revision of Estimate
Balance at December 31
Long-term portion of the company's before-tax asset retirement obligations
Asset Retirement Obligations, Noncurrent
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Maximum
Maximum [Member]
Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis]
Measurement Basis [Axis]
Fair Value, Disclosure Item Amounts [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Carrying Amount of Long-term Debt
Reported Value Measurement [Member]
Fair Value
Estimate of Fair Value Measurement [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Corporate Bond Securities
Corporate Bond Securities [Member]
Other Long-term Debt
Other Long-term Investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maturity period of primarily bank time deposits, classified as cash equivalents, maximum
Maturity Period of Bank time Deposits classified as Cash equivalents
Maturity period of primarily bank time deposits, classified as Cash equivalents.
Carrying/fair value of cash and cash equivalents
Carrying/fair value of investments not included in cash and cash equivalents
Restricted Investments, Current
Carrying amount of long-term debt
Long-term Debt
Fair value of debt
Debt Instrument, Fair Value Disclosure
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Unocal
Unocal [Member]
Unocal [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Goodwill
Goodwill
Gains on sale of nonstrategic properties
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Company share of equity affiliates foreign currency effects
Company Share of Equity Affiliates Foreign Currency Effects
Company share of equity affiliates foreign currency effects.
Gain (loss) for impairments and other assets write-offs
Gain (Loss) on Impairment Charges and Other Assets Write-offs
Gain (Loss) on Impairment Charges and Other Assets Write-offs
Total financing interest and debt costs
Interest Costs Incurred
Less: Capitalized interest
Interest Costs Capitalized
Interest and debt expense
Interest Expense, Debt
Research and development expenses
Research and Development Expense
Excess of replacement cost over the carrying value of inventories (LIFO method)
Excess of Replacement or Current Costs over Stated LIFO Value
LIFO losses on inventory drawdowns included in earnings
Effect of LIFO Inventory Liquidation on Income
Foreign currency effects
Foreign Currency Effects
Foreign currency effects.
Other Benefits
Other Postretirement Benefits Plan [Member]
Benefit payments, which include estimated future service, are expected to be paid by the company in the next 10years
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2018
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months
2019
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
2020
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
2021
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
2022
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
2023-2027
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Investment, Name [Axis]
Investment, Name [Axis]
Investment, Name [Domain]
Investment, Name [Domain]
Related Party Transactions, by Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Affiliated Entity
Affiliated Entity [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Chevron investment carrying value over underlying equity in TCO's net assets
Investment in Vie Greater Less than Underlying Equity in Vie Net Assets Vie One
Investment in vie greater less than underlying equity in vie net assets vie one.
Notes receivable from affiliate
Notes Receivable, Related Parties
Long term loans of Caspian Pipeline Consortium included in investments and advances
Long Term Loans Included in Investments and Advances
Long term loans included in investments and advances.
Chevron investment carrying value less underlying equity in Petropiar net assets
Decrease in Company Investment Carrying Value over Underlying Equity in Vie Two Net Assets
Decrease in company investment carrying value over underlying equity in vie two net assets.
Investments and advances
Percentage of Caspian Pipeline Consortium pipeline construction funded by Loans
Loan Provided to Fund Pipe line Construction
Loan provided to fund pipe line construction.
Chevron investment carrying value over underlying equity in Petroboscan's net assets
Investment in Vie Greater Less than Underlying Equity in Vie Net Assets Vie Three
Investment in vie greater less than underlying equity in vie net assets vie three.
Related Party Transaction, Other Revenues from Transactions with Related Party
Related Party Transaction, Other Revenues from Transactions with Related Party
Purchased crude oil and products
Cost of Purchased Oil and Gas
Accounts and notes receivable due from affiliated companies
Accounts and Notes Receivable Due from Affiliated Companies
Accounts and notes receivable due from affiliated companies.
Accounts payable due to affiliated companies
Accounts Payable Due to Affiliated Companies
Accounts payable due to affiliated companies.
Chevron's loan to affiliates
Due from Affiliates
Long-term debt outstanding
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of Property, Plant and Equipment [Table]
All Other
Other Segments [Member]
Properties, Plant and Equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Gross Investment at Cost
Property, Plant and Equipment, Gross
Net Investment
Additions at Cost
Property, Plant and Equipment, Additions
Depreciation Expense
Components of Net Periodic Benefit Cost and Amounts Recognized in Other Comprehensive Income
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax [Abstract]
Net Periodic Benefit Cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost
Defined Benefit Plan, Service Cost
Interest cost
Defined Benefit Plan, Interest Cost
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Amortization of prior service costs (credits)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Recognized actuarial losses
Defined Benefit Plan, Actuarial Gain (Loss), Immediate Recognition as Component in Net Periodic Benefit (Cost) Credit
Settlement losses
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement
Curtailment losses (gains)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment
Total net periodic benefit cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Changes Recognized in Comprehensive Income
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net actuarial (gain) loss during period
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax
Amortization of actuarial loss
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax
Prior service (credits) costs during period
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax
Amortization of prior service (costs) credits
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Total changes recognized in other comprehensive income
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax
Recognized in Net Periodic Benefit Cost and Other Comprehensive Income
Recognized in Net Periodic Benefit Cost and Other Comprehensive Income
Recognized In Net Periodic Benefit Cost And Other Comprehensive Income.
Short-Term Debt
Schedule of Short-term Debt [Table Text Block]
Number of reportable segments (in segments)
Number of Reportable Segments
Number of operating segments (in segments)
Number of Operating Segments
Pension Plans With Accumulated Benefit Obligation in Excess of Plan Assets
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligations
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Accumulated benefit obligations
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Fair value of plan assets
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Fair Value of Plan Assets
Schedule of capitalized leased assets
Capital Leases in Financial Statements of Lessee Disclosure [Text Block]
Rental expenses incurred for operating leases
Schedule of Rent Expense [Table Text Block]
Estimated future minimum lease payments (net of noncancelable sublease rentals) under operating and capital leases
Leases Future Minimum Payments Due [Table Text Block]
Leases future minimum payments due.
Schedule II - Valuation and Qualifying Accounts
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Intersegment
Intersegment Eliminations [Member]
Total All Other
Corporate And Eliminations [Member]
Corporate And Eliminations [Member]
Sales and other operating revenues
Fair Value Measurements
Fair Value Disclosures [Text Block]
Employee Benefit Plans
Pension and Other Postretirement Benefits Disclosure [Text Block]
Share repurchase price
Payments for Repurchase of Common Stock
Non cash transaction in operating segments
Non cash increase transaction in operating segments
Non cash increase transaction in operating segments
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Award Type [Axis]
Award Type [Axis]
Equity Award [Domain]
Equity Award [Domain]
Performance Shares and Restricted Stock Units (RSUs)
Performance Shares and Restricted Stock Units (RSUs) [Member]
Performance Shares and Restricted Stock Units (RSUs) [Member]
Stock Options and Stock Appreciation Rights
Stock Options and Stock Appreciation Rights [Member]
Stock Options and Stock Appreciation Rights [Member]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Performance Shares
Performance Shares [Member]
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Chevron Long-Term Incentive Plan (LTIP), 2017 Issuance
Chevron Long-Term Incentive Plan (LTIP), 2017 Issuance [Member]
Chevron Long-Term Incentive Plan (LTIP), 2017 Issuance [Member]
From April 2004 through May 2023
From April 2004 through May 2023 [Member]
From April 2004 through May 2023 [Member]
Compensation expense for stock options
Stock or Unit Option Plan Expense
After tax compensation expense for stock options
After Tax Compensation Expense for Stock Options
After tax compensation expense for stock options.
Compensation expense for stock appreciation rights restricted stock performance units and restricted stock units
Compensation Expense for Stock Appreciation Rights Restricted Stock Performance Units and Restricted Stock Units
Compensation expense for stock appreciation rights restricted stock performance units and restricted stock units.
Compensation expense for stock appreciation rights, restricted stock, performance units and restricted stock units, after tax
After Tax Compensation Expense for Stock Appreciation Rights Restricted Stock Performance Units and Restricted Stock Units
After tax compensation expense for stock appreciation rights restricted stock units.
Cash received in payment for option exercises
Proceeds from Stock Options Exercised
Tax benefits realized for the tax deductions from option exercises
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options
Cash paid to settle performance units and stock appreciation rights
Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards
Maximum number of share that may be issued under LTIP (in shares)
For awards issued on or after May 29, 2013, the maximum number of shares that may be in a form other than a stock option, stock appreciation right or award requiring full payment for shares by the award recipient (in shares)
Maximum Number of Shares That May be Issued Under LTIP in form Other than Stock Option Stock Appreciation Right or Award Requiring Full Payment for Shares by Recipient
Maximum number of shares that may be issued under LTIP in form other than stock option stock appreciation right or award requiring full payment for shares by recipient.
Award contractual term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Contractual Term
Share-based Compensation Arrangement by Share-based Payment Award, Contractual Term
Total intrinsic value options exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Total before-tax compensation cost related to nonvested share-based compensation arrangements
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized
Weighted-average period of recognition of unrecognized compensation cost related to nonvested share-based compensation arrangements
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition
Shares outstanding (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Shares granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Shares vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Snares forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Shares vested, fair value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Asset Retirement Obligations
Asset Retirement Obligation Disclosure [Text Block]
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Stages [Axis]
Project [Axis]
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Stages [Domain]
Project [Domain]
Undergoing Front End Engineering and Design with Final Investment Decision Expected
Undergoing Front End Engineering and Design with Final Investment Decision Expected [Member]
Undergoing front end engineering and design with final investment decision expected member.
Development Concept Under Review by Government
Development Concept Under Review by Government [Member]
Development concept under review by government Member.
Reviewing Development Alternatives
Reviewing Development Alternatives [Member]
Reviewing development alternatives member.
Miscellaneous Activities for Projects with Smaller Amounts Suspended
Miscellaneous Activities for Projects with Smaller Amounts Suspended [Member]
Miscellaneous Activities for Projects with Smaller Amounts Suspended [Member]
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Activities [Axis]
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Activities [Axis]
Projects with exploratory well costs capitalized for more than one year by different activities.
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Activities [Domain]
Projects with Exploratory Well Costs Capitalized for More than One Year by Different Activities [Domain]
Projects with exploratory well costs capitalized for more than one year by different activities.
Drilling Activity
Drilling Activity [Member]
Drilling activity.
No Drilling Activity
No Drilling Activity [Member]
No drilling activity.
Number of projects with exploratory well costs that have been capitalized for a period greater than one year (in projects)
Undergoing front-end engineering and design with final investment decision expected in three years
Undergoing Front End Engineering and Design With Final Investment Decision Expected in Three Years
Undergoing front-end engineering and design with final investment decision expected in three years.
Expected period for decision on the recognition of proved reserves
Expected Period For Decision on the Recognition of Proved Reserves
Expected period for decision on the recognition of proved reserves.
Chevron U.S.A. Inc.
Chevron USA Inc [Member]
Chevron USA Inc.
Current assets
Assets, Current
Other assets
Other Assets
Current liabilities
Liabilities, Current
Other liabilities
Other Liabilities
Total CUSA net equity
Memo: Total debt
Contractual Obligation
Summarized Financial Data - Chevron Phillips Chemical Company LLC
Loss Contingencies [Table]
Loss Contingencies [Table]
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case Type [Domain]
Litigation Case [Domain]
MTBE
MTBE [Member]
MTBE.
Ecuador Litigation
Ecuador Litigation [Member]
Ecuador Litigation [Member]
Litigation Status [Axis]
Litigation Status [Axis]
Litigation Status [Domain]
Litigation Status [Domain]
Pending Litigation
Pending Litigation [Member]
Declaratory Relief Claim
Declaratory Relief Claim [Member]
Declaratory Relief Claim [Member]
Minimum
Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Pending lawsuits and claims (in number of claims)
Loss Contingency, Pending Claims, Number
Remediation program term (in years)
Conducted Remediation Program
Conducted remediation program.
Remediation program
Remediation Program
Remediation program, expenditures made prior to acquisition.
Financial compensation for purported damages on mining engineer's report
Financial compensation for purported damages
Financial compensation for purported damages.
Assessment for purported unjust enrichment on mining engineer's report
Assessment for purported unjust enrichment
Assessment for purported unjust enrichment.
Court order requiring the parties to provide their positions on damages within (in days)
Payment to Parties for Damages With in
Payment to parties for damages within.
Estimate of possible loss
Loss Contingency, Estimate of Possible Loss
Approximate unjust enrichment
Approximate Unjust Enrichment
Approximate Unjust Enrichment
Damages awarded
Loss Contingency, Damages Awarded, Value
Additional amount assessed in punitive damages
Additional Amount Assessed in Punitive Damages
Additional amount assessed in punitive damages.
Amount assessed for plaintiffs representatives
Amount Assessed for Plaintiffs Representatives
Amount assessed for plaintiffs representatives.
Proposed additional payment for plaintiff attorney fees as percentage of judgment
Proposed Additional Payment for Plaintiff Attorney Fees as Percentage of Judgment
Proposed additional payment for plaintiff attorney fees as percentage of judgment.
Public apology date within judgment
Public Apology Date within Judgment
Public apology date within the judgment
Amount awarded to other party
Litigation Settlement, Amount Awarded to Other Party
Percentage of payments withheld by third parties due to freeze order (percent)
Loss Contingency, Percentage of Payments WIthheld by Third Parties Due to Freeze Order
Loss Contingency, Percentage of Payments WIthheld by Third Parties Due to Freeze Order
Percentage of funds wIthheld by banks due to freeze order (percent)
Loss Contingency, Percentage of Funds WIthheld by Banks Due to Freeze Order
Loss Contingency, Percentage of Funds WIthheld by Banks Due to Freeze Order
Fair market values of stock options and stock appreciation rights granted
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Summary of option activity
Share-based Compensation, Activity [Table Text Block]
Schedule of Investments [Table]
Schedule of Investments [Table]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Chevron
Parent Company [Member]
Schedule of Investments [Line Items]
Schedule of Investments [Line Items]
Total revenues
Equity Method Investment, Summarized Financial Information, Revenue
Income before income tax expense
Summarized Financial Information On Income Before Income Tax Expense
Summarized financial information on income before income tax expense.
Net income attributable to affiliates
Equity Method Investment, Summarized Financial Information, Net Income (Loss)
Current assets
Noncurrent assets
Noncurrent liabilities
Funded status of pension and other postretirement benefit plans
Schedule of Net Funded Status [Table Text Block]
Consolidated Balance Sheet for pension and other postretirement benefit plans
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Before tax basis amount in accumulated other comprehensive loss
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Pension plans with accumulated benefit obligation in excess of plan assets
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
Components of net periodic benefit cost and amounts recognized in other comprehensive income
Schedule of Net Benefit Costs [Table Text Block]
Weighted-average assumptions used to determine benefit obligations and net periodic benefit costs
Schedule of Assumptions Used [Table Text Block]
Effects of change in the assumed health care cost-trend rates
Schedule of Health Care Cost Trend Rates [Table Text Block]
Fair value measurements of the Company's pension plans
Schedule of Allocation of Plan Assets [Table Text Block]
The effect of fair-value measurements using significant unobservable inputs on changes in Level 3 plan assets for the period
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]
Benefit payments, which include estimated future service that are expected to be paid by the company in the next 10 years
Schedule of Expected Benefit Payments [Table Text Block]
Schedule of Operating Leased Assets [Table]
Schedule of Operating Leased Assets [Table]
Operating Leased Assets [Line Items]
Operating Leased Assets [Line Items]
Schedule of capitalized leased assets
Capital Leases, Balance Sheet, Assets by Major Class, Net [Abstract]
Upstream
Upstream Capital Leases
Upstream capital leases.
Downstream
Downstream Capital Leases
Downstream capital leases.
All Other
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Other Property, Plant, and Equipment, Gross
Total
Capital Leased Assets, Gross
Less: Accumulated amortization
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation
Net capitalized leased assets
Capital Leases, Balance Sheet, Assets by Major Class, Net
Rental expenses incurred for operating leases
Operating Leases, Rent Expense, Net [Abstract]
Minimum rentals
Operating Leases, Rent Expense, Minimum Rentals
Contingent rentals
Operating Leases, Rent Expense, Contingent Rentals
Total
Operating Leases, Rent Expense
Less: Sublease rental income
Operating Leases, Income Statement, Sublease Revenue
Net rental expense
Operating Leases, Rent Expense, Net
Contingent rentals, renewal option term (in years)
Operating Leases, Contingent Rentals, Renewal Option Term
Operating Leases, Contingent Rentals, Renewal Option Term
Non-cancelable term of operating and capital leases (in years)
Leasing Arrangement, Lease Noncancelable Term
Leasing Arrangement, Lease Noncancelable Term
Estimated future minimum lease payments (net of noncancelable sublease rentals) under operating and capital leases
Leases Future Minimum Payments Due [Abstract]
Leases future minimum payments due.
Operating Leases, 2018
Operating Leases, Future Minimum Payments Due, Next Twelve Months
Capital Leases, 2018
Capital Leases, Future Minimum Payments Due, Next Twelve Months
Operating Leases, 2019
Operating Leases, Future Minimum Payments, Due in Two Years
Capital Leases, 2019
Capital Leases, Future Minimum Payments Due in Two Years
Operating Leases, 2020
Operating Leases, Future Minimum Payments, Due in Three Years
Capital Leases, 2020
Capital Leases, Future Minimum Payments Due in Three Years
Operating Leases, 2021
Operating Leases, Future Minimum Payments, Due in Four Years
Capital Leases, 2021
Capital Leases, Future Minimum Payments Due in Four Years
Operating Leases, 2022
Operating Leases, Future Minimum Payments, Due in Five Years
Capital Leases, 2022
Capital Leases, Future Minimum Payments Due in Five Years
Operating Leases, Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Capital Leases, Thereafter
Capital Leases, Future Minimum Payments Due Thereafter
Operating Leases, Total
Operating Leases, Future Minimum Payments Due
Capital Leases, Total
Capital Leases, Future Minimum Payments Due
Less: Amounts representing interest and executory costs
Less Amounts Representing Interest and Executory Costs in Future Capital Lease Payments
Less: Amounts representing interest and executory costs in future capital lease payments.
Net present values
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments
Less: Capital lease obligations included in short-term debt
Capital Lease Obligations, Current
Long-term capital lease obligations
Capital Lease Obligations, Noncurrent
ESIP
Other Pension Plan [Member]
Equities
Equity Securities [Member]
Fixed Income and Cash
Fixed Income and Cash and Cash Equivalents [Member]
Fixed Income and Cash and Cash Equivalents [Member]
UNITED KINGDOM
UNITED KINGDOM
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Including Portion Funded by Third Party
Including Portion Funded by Third Party [Member]
Including Portion Funded by Third Party [Member]
Maximum annual increase percentage to company contribution for retiree medical coverage
Maximum Annual Increase Percentage to Company Contribution for Retiree Medical Coverage
Maximum annual increase percentage to Company contribution for retiree medical coverage.
Funded Status:
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Amounts recognized on a before-tax bases in "Accumulated other comprehensive loss" for the company's pension and other postretirement benefit plans
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax
Accumulated benefit obligations pension plans
Defined Benefit Plan, Accumulated Benefit Obligation
Net Actuarial Loss:
Defined Benefit Plan, Net Actuarial Gain (Loss) [Abstract]
Defined Benefit Plan, Net Actuarial Gain (Loss) [Abstract]
Number of years net actuarial losses recorded in "Accumulated other comprehensive loss" at December 31 for the company's US pension plans are being amortized for, over a straight-line basis
Number of Years Net Actuarial Losses Recorded in Accumulated Other Comprehensive Loss for Company's Domestic Pension Plans are Being Amortized for Over Straight Line Basis
Number of years net actuarial losses recorded in accumulated other comprehensive loss for company's domestic pension plans are being amortized for over straight line basis.
Number of years net actuarial losses recorded in "Accumulated other comprehensive loss" at December 31 for the company's international pension plans are being amortized for, over a straight-line basis
Number of Years Net Actuarial Losses Recorded in Accumulated Other Comprehensive Loss for Company's International Pension Plans are Being Amortized for Over Straight Line Basis
Number of years net actuarial losses recorded in accumulated other comprehensive loss for company's international pension plans are being amortized for over straight line basis.
Number of years net actuarial losses recorded in "Accumulated other comprehensive loss" at December 31 for the company's OPEB plans are being amortized for, over a straight-line basis
Number of Years Net Actuarial Losses Recorded in Accumulated Other Comprehensive Loss for Company's OPEB Plans are Being Amortized for Over Straight Line Basis
Number of years net actuarial losses recorded in accumulated other comprehensive loss for company's OPEB plans are being amortized for over straight line basis.
The percentage of the higher of the projected benefit obligation or market-related value of plan assets in excess of which net actuarial losses are amortized
Higher Percentage of Projected Benefit Obligation or Market Related Value of Plan Assets of which Losses are Amortized
Higher percentage of projected benefit obligation or market related value of plan assets of which losses are amortized.
Actuarial gain (loss) that will be amortized from Accumulated other comprehensive loss
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year
Company's estimated amount that will be recognized from "Accumulated other comprehensive loss" during the next year related to lump-sum settlement costs from U.S. pension plans
Company's Estimated Amount That Will be Recognized from Accumulated Other Comprehensive Loss During Next Year Related to Lump Sum Settlement Costs from Domestic Pension Plans
Company's estimated amount that will be recognized from accumulated other comprehensive loss during next year related to lump sum settlement costs from domestic pension plans.
Weighted average amortization period (in years) for recognizing prior service costs (credits) recorded in "Accumulated other comprehensive loss" at December 31 for US pension plan
Weighted Average Amortization Period in Years for Recognizing Prior Service Costs Credits Recorded in Accumulated Other Comprehensive Loss for Domestic Pension Plan
Weighted average amortization period in years for recognizing prior service costs credits recorded in accumulated other comprehensive loss for domestic pension plan.
Weighted average amortization period (in years) for recognizing prior service costs (credits) recorded in "Accumulated other comprehensive loss" at December 31 for international pension plan
Weighted Average Amortization Period in Years for Recognizing Prior Service Costs Credits Recorded in Accumulated Other Comprehensive Loss for International Pension Plan
Weighted average amortization period in years for recognizing prior service costs credits recorded in accumulated other comprehensive loss for international pension plan.
Weighted average amortization period (in years) for recognizing prior service costs (credits) recorded in "Accumulated other comprehensive loss" at December 31 for other postretirement benefit plan
Weighted Average Amortization Period in Years for Recognizing Prior Service Costs Credits Recorded in Accumulated Other Comprehensive Loss for Other Postretirement Benefit Plan
Weighted average amortization period in years for recognizing prior service costs credits recorded in accumulated other comprehensive loss for other postretirement benefit plan.
Amortization of prior service (credits) costs during the next year
Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year
Expected Return on Plan Assets:
Defined Benefit Plan, Expected Return on Plan Assets [Abstract]
Defined Benefit Plan, Expected Return on Plan Assets [Abstract]
Estimated long-term rate of return on US pension plan assets
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets
Percentage of US pension plan assets relative to total pension plan assets
Percentage of Domestic Pension Plan Assets Relative to Pension Plan Assets
Percentage of domestic pension plan assets relative to pension plan assets.
Plan asset market valuation period, prior to year-end measurement date
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques, Market Valuation Period Prior to Year-end Measurment Date
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques, Market Valuation Period Prior to Year-end Measurment Date
Discount Rate:
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate for pension plans
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Other Benefit Assumptions:
Defined Benefit Plan, Other Assumptions [Abstract]
Defined Benefit Plan, Other Assumptions [Abstract]
Assumed health care cost-trend rates in the next fiscal year
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Ultimate trend rate for health care cost
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Year when the ultimate health care cost trend rate is expected to be reached
Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate
Maximum annual increase in contribution rate in post retirement benefit
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent
Primary Investment:
Defined Benefit Plan, Primary Investment [Abstract]
Defined Benefit Plan, Primary Investment [Abstract]
Company's US and UK pension plans as a percentage of total pension assets
Company's Pension Plans as Percentage of Pension Assets
Company's pension plans as percentage of pension assets.
Pension Plan - Board of Trustees approved asset allocation
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Cash Contributions and Benefit Payments:
Defined Benefit Plan, Contributions and Payments [Abstract]
Defined Benefit Plan, Contributions and Payments [Abstract]
Contributions to employee pension plans
Defined Benefit Plan, Plan Assets, Contributions by Employer
Estimated contributions to employee pension plans for the next fiscal year
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Employee Savings Investment Plan:
Employee Savings Investment Plan [Abstract]
Employee Savings Investment Plan [Abstract]
Compensation expense
Allocated Share-based Compensation Expense
Benefit Plan Trusts:
Defined Benefit Plan, Benefit Plan Trusts [Abstract]
Defined Benefit Plan, Benefit Plan Trusts [Abstract]
Number of Chevron treasury stocks held in benefit plan trust for funding obligations
Number of Treasury Stocks Held in Benefit Plan Trust for Funding Obligations
Number of treasury stocks held in the benefit plan trust for funding obligations.
Various grantor trust assets invested primarily in interest earning accounts
Various Grantor Trust Assets Invested Primarily in Interest Earning Accounts
Various grantor trust assets invested primarily in interest-earning accounts.
Employee Incentive Plan
Employee Incentive Plan [Abstract]
Employee Incentive Plan [Abstract]
Charges to expense for cash bonuses
Charges to Expense for Cash Bonuses
Charges to expense for cash bonuses.
Net income (loss) attributable to CUSA
Summarized Financial Data - Tengizchevroil LLP
Summarized Financial Data of Affiliate [Text Block]
Summarized financial data of affiliate.
Taxes
Income Tax Disclosure [Text Block]
Schedule of Other Financial Information
Schedule of Other Financial Information [Table Text Block]
Schedule of other financial information.
Statement of Comprehensive Income [Abstract]
Net Income (Loss)
Currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax [Abstract]
Unrealized net change arising during period
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Unrealized holding (loss) gain on securities
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract]
Net (loss) gain arising during period
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Defined benefit plans
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Actuarial gain (loss)
Actuarial Loss [Abstract]
Defined benefit plans and actuarial loss.
Amortization to net income of net actuarial loss and settlements
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax
Actuarial (loss) gain arising during period
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax
Prior service credits (cost)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Reclassification Adjustment, before Tax [Abstract]
Amortization to net income of net prior service costs and curtailments
Prior service (costs) credits arising during period
Income taxes on defined benefit plans
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Total
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Other Comprehensive Gain, Net of Tax
Comprehensive Income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Comprehensive income attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive Income (Loss) Attributable to Chevron Corporation
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Sales and other operating revenues
Costs and other deductions
Equity Method Investment, Summarized Financial Information, Cost of Sales
Net income attributable to TCO
Recurring basis
Fair Value, Measurements, Recurring [Member]
Marketable securities
Investments, Fair Value Disclosure
Derivatives
Total assets at fair value
Assets, Fair Value Disclosure, Recurring
Derivatives
Total liabilities at fair value
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Maturity period of bank time deposits reported as time deposits, minimum
Maturity Period of Bank Time Deposits Minimum
Maturity period of bank time deposits, minimum.
Award vesting period
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Schedule of Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Total Income Tax Expense (Benefit)
Changes in company's suspended exploratory well costs
Increase (Decrease) in Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]
Beginning balance at January 1
Capitalized Exploratory Well Costs
Additions to capitalized exploratory well costs pending the determination of proved reserves
Capitalized Exploratory Well Cost, Additions Pending Determination of Proved Reserves
Reclassifications to wells, facilities and equipment based on the determination of proved reserves
Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves
Capitalized exploratory well costs charged to expense
Capitalized Exploratory Well Cost, Charged to Expense
Other reductions
Capitalized Exploratory Well Cost Other Deductions in Property Sales
Capitalized exploratory well cost, other deductions in property sales.
Ending balance at December 31
Aging of capitalized well costs and number of project
Capitalized Exploratory Well Costs [Abstract]
Exploratory well costs capitalized for a period of one year or less
Capitalized Exploratory Well Costs that Have Been Capitalized for Period of One Year or Less
Exploratory well costs capitalized for a period greater than one year
Balance at December 31
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
AOCI Attributable to Parent [Member]
Currency Translation Adjustments
Unrealized Holding Gains (Losses) on Securities
Derivatives
Defined Benefit Plans
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Components of Other Comprehensive Income (Loss):
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Before Reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Reclassifications
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Reclassification, before tax amount
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Reclassification, tax amount
Reclassification from AOCI, Current Period, Tax
Litigation
Legal Matters and Contingencies [Text Block]
Weighted-average assumptions were used to determine benefit obligations and net periodic benefit costs
Assumptions used to determine benefit obligations:
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount rate
Rate of compensation increase
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
Assumptions used to determine net periodic benefit cost:
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate for service cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate for Service Cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate for Service Cost
Discount rate for interest cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate for Interest Cost
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate for Interest Cost
Expected return on plan assets
Rate of compensation increase
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Effects of change in the assumed health care cost-trend rates
Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rate [Abstract]
Effect on total service and interest cost components, 1 Percent Increase
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components
Effect on total service and interest cost components, 1 Percent Decrease
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components
Effect on postretirement benefit obligation, 1 Percent Increase
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation
Effect on postretirement benefit obligation, 1 Percent Decrease
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation
Information Relating to the Consolidated Statement of Cash Flows
Cash Flow, Supplemental Disclosures [Text Block]
Financial and Derivative Instruments
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Summarized Financial Data - Tengizchevroil LLP
Summarized Financial Data Affiliate [Table Text Block]
Summarized financial data affiliate
Summarized Financial Data and its Affiliate
Summarized Financial Data Affiliate Net Equity [Table Text Block]
Summarized financial data affiliate net equity.
Total CTC net deficit
Stock Options and Other Share-Based Compensation
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Consolidated Balance Sheet for pension and other postretirement benefit plans
Liability, Defined Benefit Plan [Abstract]
Deferred charges and other assets
Assets for Plan Benefits, Defined Benefit Plan
Accrued liabilities
Liability, Defined Benefit Plan, Current
Noncurrent employee benefit plans
Liability, Defined Benefit Plan, Noncurrent
Net amount recognized at December 31
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position
Equity
Stockholders' Equity Note Disclosure [Text Block]
Basic EPS Calculation
Earnings Per Share, Basic [Abstract]
Earnings available to common stockholders - Basic
Weighted-average number of common shares outstanding (in shares)
Weighted Average Number of Common Shares Outstanding
Weighted average number of common shares outstanding.
Add: Deferred awards held as stock units (in shares)
Deferred Awards Held as Stock Units
Deferred awards held as stock units.
Total weighted-average number of common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Earnings per share of common stock - Basic (in dollars per share)
Earnings Per Share, Basic
Diluted EPS Calculation
Earnings Per Share, Diluted [Abstract]
Earnings available to common stockholders - Diluted
Net Income (Loss) Available to Common Stockholders, Diluted
Weighted-average number of common shares outstanding (in shares)
Add: Dilutive effect of employee stock-based awards (in shares)
Weighted Average Number Diluted Shares Outstanding Adjustment
Total weighted-average number of common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Earnings per share of common stock - Diluted (in dollars per share)
Earnings Per Share, Diluted
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Employee-based Awards
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of EPS
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Long-Term Debt
Long-term Debt [Text Block]
Before tax basis amount in accumulated other comprehensive loss.
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract]
Net actuarial loss
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax
Prior service (credit) costs
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Total recognized at December 31
Revenues and Other Income
Revenues [Abstract]
Income from equity affiliates
Other income
Other Nonoperating Income (Expense)
Total Revenues and Other Income
Revenues
Costs and Other Deductions
Costs and Expenses [Abstract]
Operating expenses
Operating Costs and Expenses
Selling, general and administrative expenses
Selling, General and Administrative Expense
Exploration expenses
Exploration Expense
Taxes other than on income
Total Costs and Other Deductions
Income Tax Expense (Benefit)
Net Income (Loss)
Less: Net income attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net Income (Loss) Attributable to Chevron Corporation
Net Income (Loss) Attributable to Chevron Corporation
– Basic (in dollars per share)
– Diluted (in dollars per share)
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Accounts and notes receivable, net
Accounts and notes receivable, net [Member]
Accounts and notes receivable net.
Long-term receivables, net
Long term receivables, net [Member]
Long-term receivables net.
Accounts payable
Accounts Payable [Member]
Deferred credits and other noncurrent obligations
Deferred credits and other noncurrent obligations [Member]
Deferred credits and other noncurrent obligations.
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Total assets at fair value
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value
Total liabilities at fair value
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Standards
Accounting Changes and Error Corrections [Text Block]
Summarized Financial Data – Chevron Phillips Chemical Company LLC
Fair market values of stock options and stock appreciation rights granted
Fair Market Values of Stock Options and Stock Appreciation Rights Granted [Abstract]
Fair market values of stock options and stock appreciation rights granted.
Stock Option
Stock Option [Abstract]
Stock Option.
Expected term in years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Risk-free interest rate based on zero coupon U.S. treasury note
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Weighted-average fair value per option granted (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Summary of option activity
Summary of Option Activity [Abstract]
Summary of option activity.
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Shares, Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Shares, Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Shares, Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Outstanding, ending balance (in shares)
Shares, Exercisable at December 31, 2015 (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price, Outstanding at January 1, 2015 (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Weighted-Average Exercise Price, Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Forfeited (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Weighted-Average Exercise Price, Outstanding at December 31, 2016 (in dollars per share)
Weighted-Average Exercise Price, Exercisable at December 31, 2016 (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Average Remaining Contractual Term, Outstanding at December 31, 2016 (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Average Remaining Contractual Term, Exercisable at December 31, 2016 (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Aggregate Intrinsic Value, Outstanding at December 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Aggregate Intrinsic Value, Exercisable at December 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Change in Benefit Obligation
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at January 1
Defined Benefit Plan, Benefit Obligation
Plan participants' contributions
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Plan amendments
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment
Actuarial (gain) loss
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Foreign currency exchange rate changes
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)
Benefits paid
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Divestitures
Defined Benefit Plan, Benefit Obligation, Divestiture
Benefit obligation at December 31
Change in Plan Assets
Fair value of plan assets at January 1
Actual return on plan assets
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Foreign currency exchange rate changes
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)
Employer contributions
Plan participants' contributions
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant
Benefits paid
Defined Benefit Plan, Plan Assets, Benefits Paid
Divestitures
Defined Benefit Plan, Plan Assets, Divestiture
Fair value of plan assets at December 31
Funded status at December 31
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Statement of Financial Position [Abstract]
Allowance for accounts and notes receivable, current
Allowance for Doubtful Accounts Receivable, Current
Preferred stock, par value (usd per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Preferred stock, shares issued
Preferred Stock, Shares Issued
Common stock, par value (usd per share)
Common Stock, Par or Stated Value Per Share
Common stock, shares authorized
Common Stock, Shares Authorized
Common stock, shares issued
Common Stock, Shares, Issued
Treasury stock, shares
Treasury Stock, Shares
Short-term Debt
Short-term Debt [Member]
Long-term Debt
Long-term Debt [Member]
Unamortized discounts and debt issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Schedule of information relating to the consolidated statement of cash flows
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Capital expenditures
Capital Expenditures [Table Text Block]
Capital expenditures.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis
Fair Value Measurements, Nonrecurring [Table Text Block]
Assets
Assets [Abstract]
Cash and cash equivalents
Marketable securities
Marketable Securities, Current
Accounts and notes receivable (less allowance: 2017 - $490; 2016 - $373)
Accounts, Notes, Loans and Financing Receivable, Net, Current
Inventories:
Inventory, Net [Abstract]
Crude oil and petroleum products
Inventory, Finished Goods and Work in Process, Gross
Chemicals
Energy Related Inventory, Chemicals
Materials, supplies and other
Other Inventory, Supplies, Gross
Total inventories
Inventory, Net
Prepaid expenses and other current assets
Prepaid Expense, Current
Total Current Assets
Long-term receivables, net
Accounts Receivable, Net, Noncurrent
Investments and advances
Properties, plant and equipment, at cost
Less: Accumulated depreciation, depletion and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Properties, plant and equipment, net
Deferred charges and other assets
Other Assets, Noncurrent
Total Assets
Assets
Liabilities and Equity
Liabilities and Equity [Abstract]
Short-term debt (net of unamortized discount and debt issuance costs: $2 in 2017, $3 in 2016)
Accounts payable
Accounts Payable, Current
Accrued liabilities
Accrued Liabilities, Current
Federal and other taxes on income
Accrued Income Taxes, Current
Other taxes payable
Accrual for Taxes Other than Income Taxes, Current
Total Current Liabilities
Long-term debt (net of unamortized discount and debt issuance costs: $35 in 2017, $41 in 2016)
Long-term Debt, Excluding Current Maturities
Capital lease obligations
Deferred credits and other noncurrent obligations
Deferred Revenue and Credits, Noncurrent
Noncurrent deferred income taxes
Deferred Tax Liabilities, Net, Noncurrent
Noncurrent employee benefit plans
Total Liabilities
Liabilities
Preferred stock (authorized 100,000,000 shares; $1.00 par value; none issued)
Preferred Stock, Value, Issued
Common stock (authorized 6,000,000,000 shares; $0.75 par value; 2,442,676,580 shares issued at December 31, 2017 and 2016)
Common Stock, Value, Issued
Capital in excess of par value
Additional Paid in Capital, Common Stock
Retained earnings
Retained Earnings (Accumulated Deficit)
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Deferred compensation and benefit plan trust
Common Stock Held in Trust
Treasury stock, at cost (2017 - 537,974,695 shares; 2016 - 551,170,158 shares)
Treasury Stock, Value
Total Chevron Corporation Stockholders' Equity
Stockholders' Equity Attributable to Parent
Noncontrolling interests
Stockholders' Equity Attributable to Noncontrolling Interest
Total Equity
Total Liabilities and Equity
Liabilities and Equity
Total Assets
Income tax expense (benefit)
Income Tax Expense (Benefit), Continuing Operations, by Jurisdiction [Abstract]
U.S. federal
Federal Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Federal Tax Expense (Benefit)
Deferred
Deferred Federal Income Tax Expense (Benefit)
State and local
State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current State and Local Tax Expense (Benefit)
Deferred
Deferred State and Local Income Tax Expense (Benefit)
Total United States
Federal and State and Local Taxes on Income
Federal and state and local taxes on income.
International
Foreign Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current
Current Foreign Tax Expense (Benefit)
Deferred
Deferred Foreign Income Tax Expense (Benefit)
Total International
Foreign Income Tax Expense (Benefit), Continuing Operations
Equity in earnings, together with investments in and advances to companies accounted for using the equity method and other investments accounted for at or below cost
Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block]
Summarized financial information on a 100 percent basis for all equity affiliates as well as Chevron's total share, which includes Chevron loans to affiliates
Summarized Financial Information [Table Text Block]
Summarized financial information.
Computation of basic and diluted EPS
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Notes Payable
Notes Payable to Banks [Member]
Floating Rate Notes
Bonds [Member]
Debentures
Unsecured Debt [Member]
Medium-term Notes
Medium-term Notes [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
3.191% notes due 2023
Three Point One Nine One Percent notes due 2023 [Member]
Three Point One Nine One Percent notes due 2023
2.954% notes due 2026
Two Point Nine Five Four Percent Notes due 2026 [Member]
Two Point Nine Five Four Percent Notes due 2026 [Member]
1.718% notes due 2018
One Point Seven One Eight Percent Notes due 2018 [Member]
One Point Seven One Eight Percent Notes due 2018 [Member]
2.355% notes due 2022
Two Point Three Five Five Percent Notes Due 2022 [Member]
Two Point Three Five Five Percent Notes Due 2022 [Member]
1.365% notes due 2018
One Point Three Six Five Percent Notes due 2018 [Member]
One Point Three Six Five Percent Notes due 2018 [Member]
1.961% notes due 2020
One Point Nine Six One Percent Notes due 2020 [Member]
One Point Nine Six One Percent Notes due 2020 [Member]
Floating rate notes due 2018 (1.833%)
Floating Rate Notes due 2018 [Member]
Floating Rate Notes due 2018 [Member]
4.950% notes due 2019
Four Point Nine Five Percent notes due 2019 [Member]
Four Point Nine Five Percent notes due 2019
1.561% notes due 2019
One Point Five Six One Percent Notes due 2019 [Member]
One Point Five Six One Percent Notes due 2019 [Member]
2.100% notes due 2021
Two Point One Percent Notes due 2021 [Member]
Two Point One Percent Notes due 2021 [Member]
1.790% notes due 2018
One Point Seven Nine Zero Percent Notes due 2018 [Member]
One Point Seven Nine Zero Percent Notes due 2018 [Member]
2.419% notes due 2020
Two Point Four One Nine Percent Notes due 2020 [Member]
Two Point Four One Nine Percent Notes due 2020 [Member]
2.427% notes due 2020
Two Point Four Two Seven Percent Notes due 2020 [Member]
Two Point Four Two Seven Percent Notes due 2020 [Member]
2.895% notes due 2024
Two Point Eight Nine Five Percent Notes due 2024 [Member]
Two Point Eight Nine Five Percent Notes due 2024 [Member]
Floating rate notes due 2019 (1.684%)
Floating Rate Notes due 2019 [Member]
Floating Rate Notes due 2019 [Member]
2.193% notes due 2019
Two Point One Nine Three Percent Notes due 2019 [Member]
Two Point One Nine Three Percent Notes due 2019 [Member]
2.566% notes due 2023
Two Point Five Six Six Percent Notes due 2023 [Member]
Two Point Five Six Six Percent Notes due 2023 [Member]
3.326% notes due 2025
Three Point Three Two Six Percent Notes due 2025 [Member]
Three Point Three Two Six Percent Notes due 2025 [Member]
2.498% notes due 2022
Two Point Four Nine Eight Percent Notes due 2022 [Member]
Two Point Four Nine Eight Percent Notes due 2022 [Member]
2.411% notes due 2022
Two Point Four One One Percent Notes due 2022 [Member]
Two Point Four One One Percent Notes due 2022 [Member]
Floating rate notes due 2021 (2.109%)
Floating Rate Notes due 2021 [Member]
Floating Rate Notes due 2021 [Member]
Floating rate notes due 2022 (1.994%)
Floating Rate Notes due 2022 [Member]
Floating Rate Notes due 2022 [Member]
1.991% notes due 2020
One Point Nine Nine One Percent Notes due 2020 [Member]
One Point Nine Nine One Percent Notes due 2020 [Member]
1.686% notes due 2019
One Point Six Eight Six Percent Notes due 2019 [Member]
One Point Six Eight Six Percent Notes due 2019 [Member]
Floating rate notes due 2020 (1.697%)
Floating Rate Notes due 2020 [Member]
Floating Rate Notes due 2020 [Member]
8.625% debentures due 2032
Debenture One [Member]
Debenture one.
8.625% debentures due 2031
Debenture Two [Member]
Debenture two.
8.000% debentures due 2032
Debenture Four [Member]
Debenture four.
Amortizing bank loan due 2018 (2.179%)
Amortizing Bank Loan due 2018 [Member]
Amortizing Bank Loan due 2018 [Member]
9.750% debentures due 2020
Debenture Five [Member]
Debenture five.
8.875% debentures due 2021
Debenture Six [Member]
Debenture six.
Medium-term notes, maturing from 2021 to 2038 (6.283%)
Medium-term notes, maturing from 2021 to 2038 [Member]
Medium-term notes, maturing from 2021 to 2038
Floating rate notes due 2017
Floating rate notes due 2017 [Member]
Floating rate notes due 2017 [Member]
1.104% notes due 2017
One Point One Zero Four Percent Notes Due 2017 [Member]
One Point One Zero Four Percent Notes Due 2017 [Member]
1.345% notes due 2017
One Point Three Four Five Percent Notes due 2017 [Member]
One Point Three Four Five Percent Notes due 2017 [Member]
1.344% notes due 2017
One Point Three Four Four Percent Notes due 2017 [Member]
One Point Three Four Four Percent Notes due 2017 [Member]
Long-term debt instruments
Debt due within one year
Long-term Debt, Current Maturities, Excluding Unamortized Discount (Premium)
Long-term Debt, Current Maturities, Excluding Unamortized Discount (Premium)
Reclassified from short-term debt
Unamortized discounts and debt issuance costs
Total long-term debt
Long-term Debt, Excluding Current Maturities and Reclassifications
Long-term Debt, Excluding Current Maturities and Reclassifications
Interest rate
Debt Instrument, Interest Rate, Stated Percentage
Long-term debt maturing 2018
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months
Long-term debt maturing 2019
Long-term Debt, Maturities, Repayments of Principal in Year Two
Long-term debt maturing 2020
Long-term Debt, Maturities, Repayments of Principal in Year Three
Long-term debt maturing 2021
Long-term Debt, Maturities, Repayments of Principal in Year Four
Long-term debt maturing 2022
Long-term Debt, Maturities, Repayments of Principal in Year Five
Long-term debt maturing after 2022
Long-term Debt, Maturities, Repayments of Principal after Year Five
Debt issued
Debt Instrument, Face Amount