$XOM
EXXON MOBIL CORP Stock $xom

$xom Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000003408820000016 Filed on February 26, 2020

Income Statement

Concept	2019 Q4	2018 Q4	2017 Q4
Revenue	$63.02B	$68.25B	$50.83B
YoY Change	-7.66%	34.27%	25.83%
Cost Of Revenue	$44.25B	$46.96B	$28.98B
YoY Change	-5.76%	62.04%	36.74%
Gross Profit	$18.77B	$21.30B	$21.85B
YoY Change	-11.86%	-2.55%	13.8%
Gross Profit Margin	29.78%	31.2%	42.99%
Selling, General & Admin	$10.79B	$10.69B	$13.31B
YoY Change	0.94%	-19.7%	5.84%
% of Gross Profit	57.46%	50.18%	60.9%
Research & Development	$357.0M	$555.0M	$703.0M
YoY Change	-35.68%	-21.05%	106.76%
% of Gross Profit	1.9%	2.61%	3.22%
Depreciation & Amortization	$4.923B	$5.028B	$5.842B
YoY Change	-2.09%	-13.93%	-28.03%
% of Gross Profit	26.23%	23.61%	26.73%
Operating Expenses	$16.27B	$16.60B	$19.85B
YoY Change	-1.98%	-16.38%	-5.6%
Operating Profit	$2.497B	$4.694B	$2.000B
YoY Change	-46.8%	134.7%	-209.41%
Interest Expense	$945.0M	$1.541B	$487.0M
YoY Change	-38.68%	216.43%	-57.02%
% of Operating Profit	37.85%	32.83%	24.35%
Other Income/Expense, Net	$2.972B	$1.886B	$530.0M
YoY Change	57.58%	255.85%	-59.6%
Pretax Income	$6.414B	$8.121B	$3.017B
YoY Change	-21.02%	169.17%	388.98%
Income Tax	$1.424B	$1.936B	$550.0M
% Of Pretax Income	22.2%	23.84%	18.23%
Net Earnings	$5.690B	$6.000B	$8.380B
YoY Change	-5.17%	-28.4%	398.81%
Net Earnings / Revenue	9.03%	8.79%	16.49%
Basic Earnings Per Share
Diluted Earnings Per Share	$1.333M	$1.406M	$1.963M
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept	2019 Q4	2018 Q4	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.089B	$3.042B	$3.177B
YoY Change	1.55%	-4.25%	-13.13%
Cash & Equivalents	$3.089B	$3.042B	$3.177B
Short-Term Investments
Other Short-Term Assets	$1.469B	$1.272B	$1.368B
YoY Change	15.49%	-7.02%	6.46%
Inventory	$18.53B	$18.96B	$16.99B
Prepaid Expenses
Receivables	$21.10B	$19.64B	$21.27B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$50.05B	$47.97B	$47.13B
YoY Change	4.33%	1.78%	13.81%
LONG-TERM ASSETS
Property, Plant & Equipment	$253.0B	$247.1B	$252.6B
YoY Change	2.39%	-2.19%	3.44%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$29.29B	$26.38B	$24.35B
YoY Change	11.03%	8.33%	17.03%
Other Assets	$16.36B	$10.33B	$9.767B
YoY Change	58.37%	5.78%	2.04%
Total Long-Term Assets	$312.5B	$298.2B	$301.6B
YoY Change	4.8%	-1.11%	4.38%
TOTAL ASSETS
Total Short-Term Assets	$50.05B	$47.97B	$47.13B
Total Long-Term Assets	$312.5B	$298.2B	$301.6B
Total Assets	$362.6B	$346.2B	$348.7B
YoY Change	4.74%	-0.72%	5.56%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$40.61B	$37.27B	$36.80B
YoY Change	8.95%	1.28%	17.96%
Accrued Expenses	$1.211B
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.617B	$4.070B	$4.766B
YoY Change	-60.27%	-14.6%	61.01%
Total Short-Term Liabilities	$63.99B	$57.14B	$57.77B
YoY Change	11.99%	-1.1%	21.27%
LONG-TERM LIABILITIES
Long-Term Debt	$26.48B	$20.54B	$23.10B
YoY Change	28.94%	-11.09%	-16.61%
Other Long-Term Liabilities	$21.42B	$18.09B	$19.22B
YoY Change	18.36%	-5.83%	-4.26%
Total Long-Term Liabilities	$21.42B	$18.09B	$42.32B
YoY Change	18.36%	-57.24%	-11.42%
TOTAL LIABILITIES
Total Short-Term Liabilities	$63.99B	$57.14B	$57.77B
Total Long-Term Liabilities	$21.42B	$18.09B	$42.32B
Total Liabilities	$163.7B	$147.7B	$154.2B
YoY Change	10.83%	-4.23%	-1.47%
SHAREHOLDERS EQUITY
Retained Earnings	$421.3B	$421.7B	$414.5B
YoY Change	-0.07%	1.72%	1.65%
Common Stock	$15.64B	$15.26B	$14.66B
YoY Change	2.48%	4.11%	20.56%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$225.8B	$225.6B	$225.2B
YoY Change	0.13%	0.14%	-2.25%
Treasury Stock Shares	3.785B shares	3.782B shares	3.780B shares
Shareholders Equity	$191.7B	$191.8B	$187.7B
YoY Change
Total Liabilities & Shareholders Equity	$362.6B	$346.2B	$348.7B
YoY Change	4.74%	-0.72%	5.56%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2017 Q4
OPERATING ACTIVITIES
Net Income	$5.690B	$6.000B	$8.380B
YoY Change	-5.17%	-28.4%	398.81%
Depreciation, Depletion And Amortization	$4.923B	$5.028B	$5.842B
YoY Change	-2.09%	-13.93%	-28.03%
Cash From Operating Activities	$6.352B	$8.607B	$7.411B
YoY Change	-26.2%	16.14%	0.2%
INVESTING ACTIVITIES
Capital Expenditures	-$6.704B	-$6.094B	-$4.501B
YoY Change	10.01%	35.39%	15.8%
Acquisitions
YoY Change
Other Investing Activities	$2.440B	$510.0M	-$2.035B
YoY Change	378.43%	-125.06%	-191.87%
Cash From Investing Activities	-$4.264B	-$5.584B	-$6.536B
YoY Change	-23.64%	-14.57%	290.91%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-4.456B	-5.501B	-1.837B
YoY Change	-19.0%	199.46%	-72.77%
NET CHANGE
Cash From Operating Activities	6.352B	8.607B	7.411B
Cash From Investing Activities	-4.264B	-5.584B	-6.536B
Cash From Financing Activities	-4.456B	-5.501B	-1.837B
Net Change In Cash	-2.368B	-2.478B	-962.0M
YoY Change	-4.44%	157.59%	-5.87%
FREE CASH FLOW
Cash From Operating Activities	$6.352B	$8.607B	$7.411B
Capital Expenditures	-$6.704B	-$6.094B	-$4.501B
Free Cash Flow	$13.06B	$14.70B	$11.91B
YoY Change	-11.19%	23.41%	5.57%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000034088
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue
CY2018Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	1-2256
CY2019	dei	Entity Registrant Name EntityRegistrantName	Exxon Mobil Corporation
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NJ
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-5409005
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	5959 Las Colinas Boulevard
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Irving
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	75039-2298
CY2019	dei	City Area Code CityAreaCode	972
CY2019	dei	Local Phone Number LocalPhoneNumber	940-6000
CY2019	dei	Security12b Title Security12bTitle	Common Stock, without par value
CY2019	dei	Trading Symbol TradingSymbol	XOM
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
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CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-19564000000	USD
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	3785000000	shares
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CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	225553000000	USD
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CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	191794000000	USD
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CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	198938000000	USD
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CY2018	xom	Other Long Term Obligations Expense And Payments Adjustment OtherLongTermObligationsExpenseAndPaymentsAdjustment	-68000000	USD
CY2017	xom	Other Long Term Obligations Expense And Payments Adjustment OtherLongTermObligationsExpenseAndPaymentsAdjustment	-610000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	1684000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-131000000	USD
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CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	15402000000	USD
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CY2018	us-gaap	Proceeds From Sale And Collection Of Receivables ProceedsFromSaleAndCollectionOfReceivables	986000000	USD
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CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-16446000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-15730000000	USD
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CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3177000000	USD
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CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3042000000	USD
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CY2017	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	295000000	USD
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CY2018	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	319000000	USD
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CY2019	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	5000000	shares
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CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1214000000	USD
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CY2019	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	523000000	USD
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CY2018Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	4783000000	USD
CY2019Q4	us-gaap	Inventory Crude Oil Products And Merchandise InventoryCrudeOilProductsAndMerchandise	5281000000	USD
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CY2019Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	3240000000	USD
CY2018Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	3821000000	USD
CY2019Q4	xom	Natural Gas And Other Inventory NaturalGasAndOtherInventory	378000000	USD
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CY2019Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	14010000000	USD
CY2018Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	14803000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	-196000000	USD
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CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	88000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	32000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	67000000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	719000000	USD
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CY2017	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-223000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7018000000	USD
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CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	34000000	USD
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CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	21100000000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	19638000000	USD
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CY2018Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	24701000000	USD
CY2019Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	316000000	USD
CY2018Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	325000000	USD
CY2019Q4	us-gaap	Commercial Paper CommercialPaper	18561000000	USD
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	12863000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1701000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	4070000000	USD
CY2019Q4	us-gaap	Debt Current DebtCurrent	20578000000	USD
CY2018Q4	us-gaap	Debt Current DebtCurrent	17258000000	USD
CY2019Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	24694000000	USD
CY2018Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	21063000000	USD
CY2019Q4	xom	Payables To Equity Companies PayablesToEquityCompanies	6825000000	USD
CY2018Q4	xom	Payables To Equity Companies PayablesToEquityCompanies	6863000000	USD
CY2019Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3301000000	USD
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	3280000000	USD
CY2019Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	7011000000	USD
CY2018Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	6062000000	USD
CY2019Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	41831000000	USD
CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	37268000000	USD
CY2019Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.017	pure
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.024	pure
CY2019	xom	Share Of Equity Company Sales Revenues From Consolidated Companies ShareOfEquityCompanySalesRevenuesFromConsolidatedCompanies	0.13	pure
CY2018	xom	Share Of Equity Company Sales Revenues From Consolidated Companies ShareOfEquityCompanySalesRevenuesFromConsolidatedCompanies	0.14	pure
CY2017	xom	Share Of Equity Company Sales Revenues From Consolidated Companies ShareOfEquityCompanySalesRevenuesFromConsolidatedCompanies	0.15	pure
CY2018Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	40790000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	29291000000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	26382000000	USD
CY2019Q4	us-gaap	Advances To Affiliate AdvancesToAffiliate	8542000000	USD
CY2018Q4	us-gaap	Advances To Affiliate AdvancesToAffiliate	8608000000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	37833000000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	34990000000	USD
CY2019Q4	us-gaap	Cost Method Investments CostMethodInvestments	190000000	USD
CY2018Q4	us-gaap	Cost Method Investments CostMethodInvestments	210000000	USD
CY2019Q4	xom	Reserves For Long Term Receivables And Miscellaneous Investments ReservesForLongTermReceivablesAndMiscellaneousInvestments	5643000000	USD
CY2018Q4	xom	Reserves For Long Term Receivables And Miscellaneous Investments ReservesForLongTermReceivablesAndMiscellaneousInvestments	5471000000	USD
CY2019Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	5141000000	USD
CY2018Q4	us-gaap	Long Term Accounts Notes And Loans Receivable Net Noncurrent LongTermAccountsNotesAndLoansReceivableNetNoncurrent	5590000000	USD
CY2019Q4	us-gaap	Long Term Investments And Receivables Net LongTermInvestmentsAndReceivablesNet	43164000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	486702000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	253018000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	477190000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	247101000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	100000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	700000000	USD
CY2017	us-gaap	Asset Impairment Charges AssetImpairmentCharges	2000000000.0	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	233684000000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	230089000000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	731000000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	652000000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	749000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	12103000000	USD
CY2017Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	12705000000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	649000000	USD
CY2018	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	681000000	USD
CY2019	xom	Asset Retirement Obligation Reduction Due To Property Sales AssetRetirementObligationReductionDueToPropertySales	1085000000	USD
CY2018	xom	Asset Retirement Obligation Reduction Due To Property Sales AssetRetirementObligationReductionDueToPropertySales	333000000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	827000000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	600000000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	89000000	USD
CY2018	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	46000000	USD
CY2019	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	84000000	USD
CY2018	us-gaap	Asset Retirement Obligation Foreign Currency Translation Gain Loss AssetRetirementObligationForeignCurrencyTranslationGainLoss	-481000000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	267000000	USD
CY2018	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	85000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	11280000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	12103000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	10279000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	11185000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4160000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	3700000000	USD
CY2016Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4477000000	USD
CY2019	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	532000000	USD
CY2018	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	564000000	USD
CY2017	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	906000000	USD
CY2019	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	46000000	USD
CY2018	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	7000000	USD
CY2017	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	1205000000	USD
CY2019	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	37000000	USD
CY2018	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	48000000	USD
CY2017	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	497000000	USD
CY2019Q4	xom	Other Capitalized Exploratory Well Costs OtherCapitalizedExploratoryWellCosts	4000000	USD
CY2018Q4	xom	Other Capitalized Exploratory Well Costs OtherCapitalizedExploratoryWellCosts	-49000000	USD
CY2017Q4	xom	Other Capitalized Exploratory Well Costs OtherCapitalizedExploratoryWellCosts	19000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4613000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4160000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	3700000000	USD
CY2019Q4	xom	Capitalized Exploratory Well Costs Attributable To Equity Companies CapitalizedExploratoryWellCostsAttributableToEquityCompanies	306000000	USD
CY2018Q4	xom	Capitalized Exploratory Well Costs Attributable To Equity Companies CapitalizedExploratoryWellCostsAttributableToEquityCompanies	306000000	USD
CY2017Q4	xom	Capitalized Exploratory Well Costs Attributable To Equity Companies CapitalizedExploratoryWellCostsAttributableToEquityCompanies	306000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	532000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	564000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Of One Year Or Less CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodOfOneYearOrLess	906000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	4081000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	3596000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year CapitalizedExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	2794000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4613000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	4160000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	3700000000	USD
CY2019Q4	xom	Number Of Projects That Only Have Exploratory Well Costs Capitalized For Period Of One Year Or Less NumberOfProjectsThatOnlyHaveExploratoryWellCostsCapitalizedForPeriodOfOneYearOrLess	4	Projects
CY2018Q4	xom	Number Of Projects That Only Have Exploratory Well Costs Capitalized For Period Of One Year Or Less NumberOfProjectsThatOnlyHaveExploratoryWellCostsCapitalizedForPeriodOfOneYearOrLess	6	Projects
CY2017Q4	xom	Number Of Projects That Only Have Exploratory Well Costs Capitalized For Period Of One Year Or Less NumberOfProjectsThatOnlyHaveExploratoryWellCostsCapitalizedForPeriodOfOneYearOrLess	11	Projects
CY2019Q4	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	46	Projects
CY2018Q4	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	52	Projects
CY2017Q4	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	46	Projects
CY2019Q4	xom	Total Number Of Projects TotalNumberOfProjects	50	Projects
CY2018Q4	xom	Total Number Of Projects TotalNumberOfProjects	58	Projects
CY2017Q4	xom	Total Number Of Projects TotalNumberOfProjects	57	Projects
CY2019Q4	us-gaap	Projects That Have Exploratory Well Costs That Have Been Capitalized For Period Greater Than One Year ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalizedForPeriodGreaterThanOneYear	46	Projects
CY2019Q4	xom	Number Of Projects With Capitalized Well Drilled In Preceding Twelve Months Or Exploration Planned In Next Two Years As Of Year End NumberOfProjectsWithCapitalizedWellDrilledInPrecedingTwelveMonthsOrExplorationPlannedInNextTwoYearsAsOfYearEnd	14	Projects
CY2019Q4	xom	Number Of Projects With Capitalized Well Exploration Completed As Of Year End Progressing Toward Development NumberOfProjectsWithCapitalizedWellExplorationCompletedAsOfYearEndProgressingTowardDevelopment	32	Projects
CY2019Q4	xom	Number Of Projects With Capitalized Well Exploration Completed As Of Year End Progressing Toward Development NumberOfProjectsWithCapitalizedWellExplorationCompletedAsOfYearEndProgressingTowardDevelopment	32	Projects
CY2018	us-gaap	Net Income Loss NetIncomeLoss	20840000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	19710000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	2715000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	2618000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	6112000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	14340000000	USD
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4270000000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4270000000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4256000000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.36
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.88
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.63
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.43
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	3.06
CY2019Q4	xom	Long Term Debt In Us Dollars LongTermDebtInUsDollars	25710000000	USD
CY2019Q4	xom	Us Dollar Equivalent At Year End Exchange Rates Of Amounts Payable In Foreign Currencies UsDollarEquivalentAtYearEndExchangeRatesOfAmountsPayableInForeignCurrencies	632000000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1617000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2803000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3316000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1261000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2130000000	USD
CY2019Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	60000000	USD
CY2018Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	42000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	26342000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	20538000000	USD
CY2019	xom	Minimum Ownership Of Affiliate Needed For Awards MinimumOwnershipOfAffiliateNeededForAwards	0.50	pure
CY2019	xom	Share Based Compensation Arrangement By Share Based Payment Award Minimum Percentage Of Market Value At Date Of Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardMinimumPercentageOfMarketValueAtDateOfGrant	1	pure
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	220000000	shares
CY2019Q4	xom	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Remaining ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedRemaining	76000000	shares
CY2018Q4	xom	Issued And Outstanding Restricted Stock IssuedAndOutstandingRestrictedStock	40381000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	86.56
CY2019	xom	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Prior Year Awards Issued Granted In Current Year ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodPriorYearAwardsIssuedGrantedInCurrentYear	8799000	shares
CY2019	xom	Weighted Average Fair Value Of Restricted Stock And Restricted Stock Units At Grant Date WeightedAverageFairValueOfRestrictedStockAndRestrictedStockUnitsAtGrantDate	77.66
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod	9427000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	86.94
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod	125000	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue	85.35
CY2019Q4	xom	Issued And Outstanding Restricted Stock IssuedAndOutstandingRestrictedStock	39628000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	84.50
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	68.77
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	77.66
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	81.89
CY2019	xom	Share Based Compensation Arrangement By Share Based Payment Award Restricted Stock And Units Settled In Stock ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAndUnitsSettledInStock	559000000	USD
CY2018	xom	Share Based Compensation Arrangement By Share Based Payment Award Restricted Stock And Units Settled In Stock ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAndUnitsSettledInStock	620000000	USD
CY2017	xom	Share Based Compensation Arrangement By Share Based Payment Award Restricted Stock And Units Settled In Stock ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictedStockAndUnitsSettledInStock	667000000	USD
CY2019	xom	Share Based Compensation Arrangements By Share Based Payment Units Settled In Cash ShareBasedCompensationArrangementsByShareBasedPaymentUnitsSettledInCash	55000000	USD
CY2018	xom	Share Based Compensation Arrangements By Share Based Payment Units Settled In Cash ShareBasedCompensationArrangementsByShareBasedPaymentUnitsSettledInCash	61000000	USD
CY2017	xom	Share Based Compensation Arrangements By Share Based Payment Units Settled In Cash ShareBasedCompensationArrangementsByShareBasedPaymentUnitsSettledInCash	63000000	USD
CY2019	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	614000000	USD
CY2018	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	681000000	USD
CY2017	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	730000000	USD
CY2019Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	6955000000	USD
CY2019	us-gaap	Defined Benefit Plan Benefit Obligation Prescription Drug Subsidy Receipt DefinedBenefitPlanBenefitObligationPrescriptionDrugSubsidyReceipt	20000000	USD
CY2018	us-gaap	Defined Benefit Plan Benefit Obligation Prescription Drug Subsidy Receipt DefinedBenefitPlanBenefitObligationPrescriptionDrugSubsidyReceipt	13000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.045	pure
CY2019	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2021
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	85000000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	921000000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Service And Interest Cost Components1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnServiceAndInterestCostComponents1	63000000	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	726000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	422000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	391000000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	384000000	USD
CY2019	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-2041000000	USD
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	1657000000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	1279000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-550000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	470000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	290000000	USD
CY2019	xom	Other Comprehensive Income Loss Charge Credit To Investment In Equity Companies OtherComprehensiveIncomeLossChargeCreditToInvestmentInEquityCompanies	19000000	USD
CY2018	xom	Other Comprehensive Income Loss Charge Credit To Investment In Equity Companies OtherComprehensiveIncomeLossChargeCreditToInvestmentInEquityCompanies	-24000000	USD
CY2017	xom	Other Comprehensive Income Loss Charge Credit To Investment In Equity Companies OtherComprehensiveIncomeLossChargeCreditToInvestmentInEquityCompanies	43000000	USD
CY2019	xom	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1510000000	USD
CY2018	xom	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-1211000000	USD
CY2017	xom	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Including Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-946000000	USD
CY2019	xom	Other Comprehensive Income Loss Charge Credit To Equity Of Noncontrolling Interests OtherComprehensiveIncomeLossChargeCreditToEquityOfNoncontrollingInterests	-146000000	USD
CY2018	xom	Other Comprehensive Income Loss Charge Credit To Equity Of Noncontrolling Interests OtherComprehensiveIncomeLossChargeCreditToEquityOfNoncontrollingInterests	114000000	USD
CY2017	xom	Other Comprehensive Income Loss Charge Credit To Equity Of Noncontrolling Interests OtherComprehensiveIncomeLossChargeCreditToEquityOfNoncontrollingInterests	-12000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9532000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	20051000000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	26382000000	USD
CY2018Q4	us-gaap	Assets Assets	346196000000	USD
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	105000000	USD
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CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	279332000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	18745000000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	64000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	766000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	19710000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5380000000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	237162000000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	19893000000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	36000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	601000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1174000000	USD
CY2019	us-gaap	Taxes Other TaxesOther	30525000000	USD
CY2018	us-gaap	Taxes Other TaxesOther	32663000000	USD
CY2017	us-gaap	Taxes Other TaxesOther	30104000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1174000000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	24901000000	USD
CY2017Q4	us-gaap	Equity Method Investments EquityMethodInvestments	24354000000	USD
CY2017Q4	us-gaap	Assets Assets	348691000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	255583000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	279332000000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	237162000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	253018000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	247101000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	252630000000	USD
CY2019	xom	Worldwide Current Tax Expense Benefit WorldwideCurrentTaxExpenseBenefit	6050000000	USD
CY2018	xom	Worldwide Current Tax Expense Benefit WorldwideCurrentTaxExpenseBenefit	9460000000	USD
CY2017	xom	Worldwide Current Tax Expense Benefit WorldwideCurrentTaxExpenseBenefit	7210000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-675000000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-96000000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8321000000	USD
CY2019	xom	Federal Income Tax Expense Benefit On Foreign Operations FederalIncomeTaxExpenseBenefitOnForeignOperations	89000000	USD
CY2018	xom	Federal Income Tax Expense Benefit On Foreign Operations FederalIncomeTaxExpenseBenefitOnForeignOperations	42000000	USD
CY2017	xom	Federal Income Tax Expense Benefit On Foreign Operations FederalIncomeTaxExpenseBenefitOnForeignOperations	17000000	USD
CY2019	xom	Total Federal And Non Us Tax Expense Benefit TotalFederalAndNonUsTaxExpenseBenefit	5464000000	USD
CY2018	xom	Total Federal And Non Us Tax Expense Benefit TotalFederalAndNonUsTaxExpenseBenefit	9406000000	USD
CY2017	xom	Total Federal And Non Us Tax Expense Benefit TotalFederalAndNonUsTaxExpenseBenefit	-1094000000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-182000000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	126000000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-80000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5282000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9532000000	USD
CY2019	xom	Taxes Included In Production And Manufacturing Expenses TaxesIncludedInProductionAndManufacturingExpenses	2196000000	USD
CY2018	xom	Taxes Included In Production And Manufacturing Expenses TaxesIncludedInProductionAndManufacturingExpenses	2102000000	USD
CY2017	xom	Taxes Included In Production And Manufacturing Expenses TaxesIncludedInProductionAndManufacturingExpenses	1854000000	USD
CY2019	xom	Taxes Included In Selling General And Administrative Expenses TaxesIncludedInSellingGeneralAndAdministrativeExpenses	465000000	USD
CY2018	xom	Taxes Included In Selling General And Administrative Expenses TaxesIncludedInSellingGeneralAndAdministrativeExpenses	465000000	USD
CY2017	xom	Taxes Included In Selling General And Administrative Expenses TaxesIncludedInSellingGeneralAndAdministrativeExpenses	501000000	USD
CY2019	xom	Total Other Taxes And Duties TotalOtherTaxesAndDuties	33186000000	USD
CY2018	xom	Total Other Taxes And Duties TotalOtherTaxesAndDuties	35230000000	USD
CY2017	xom	Total Other Taxes And Duties TotalOtherTaxesAndDuties	32459000000	USD
CY2019	xom	Total Income Sales Based And Other Taxes TotalIncomeSalesBasedAndOtherTaxes	38468000000	USD
CY2018	xom	Total Income Sales Based And Other Taxes TotalIncomeSalesBasedAndOtherTaxes	44762000000	USD
CY2017	xom	Total Income Sales Based And Other Taxes TotalIncomeSalesBasedAndOtherTaxes	31285000000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
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CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-53000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	5200000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-754000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	20109000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	25753000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	19428000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20056000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	30953000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	18674000000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4212000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6500000000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6536000000	USD
CY2019	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	1143000000	USD
CY2018	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	1545000000	USD
CY2017	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	1883000000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	2573000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	4626000000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1848000000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-360000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	242000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1733000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5282000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9532000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1174000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5282000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9532000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1174000000	USD
CY2019	xom	Share Of Equity Company Income Taxes ShareOfEquityCompanyIncomeTaxes	2490000000	USD
CY2018	xom	Share Of Equity Company Income Taxes ShareOfEquityCompanyIncomeTaxes	3142000000	USD
CY2017	xom	Share Of Equity Company Income Taxes ShareOfEquityCompanyIncomeTaxes	2228000000	USD
CY2019	xom	Total Consolidated Company And Share Of Equity Company Income Taxes TotalConsolidatedCompanyAndShareOfEquityCompanyIncomeTaxes	7772000000	USD
CY2018	xom	Total Consolidated Company And Share Of Equity Company Income Taxes TotalConsolidatedCompanyAndShareOfEquityCompanyIncomeTaxes	12674000000	USD
CY2017	xom	Total Consolidated Company And Share Of Equity Company Income Taxes TotalConsolidatedCompanyAndShareOfEquityCompanyIncomeTaxes	1054000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	14774000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	21421000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	19848000000	USD
CY2019	xom	Results Of Operations Income Before Consolidate And Equity Company Income Taxes ResultsOfOperationsIncomeBeforeConsolidateAndEquityCompanyIncomeTaxes	22546000000	USD
CY2018	xom	Results Of Operations Income Before Consolidate And Equity Company Income Taxes ResultsOfOperationsIncomeBeforeConsolidateAndEquityCompanyIncomeTaxes	34095000000	USD
CY2017	xom	Results Of Operations Income Before Consolidate And Equity Company Income Taxes ResultsOfOperationsIncomeBeforeConsolidateAndEquityCompanyIncomeTaxes	20902000000	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.34	pure
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CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.05	pure
CY2017	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	708000000	USD
CY2019Q4	us-gaap	Deferred Tax And Other Liabilities Noncurrent DeferredTaxAndOtherLiabilitiesNoncurrent	22352000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	36029000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	35745000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	7653000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	6516000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	43682000000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	42261000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	4712000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	4115000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	3403000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	4118000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	7404000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6321000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7735000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5498000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	23254000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	20052000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1924000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1826000000	USD
CY2019Q4	us-gaap	Deferred Tax And Other Liabilities Noncurrent DeferredTaxAndOtherLiabilitiesNoncurrent	22352000000	USD
CY2018Q4	us-gaap	Deferred Tax And Other Liabilities Noncurrent DeferredTaxAndOtherLiabilitiesNoncurrent	24035000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1924000000	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	98000000	USD
CY2019Q4	xom	Deferred Tax Asset Included In Other Assets Including Intangibles Net DeferredTaxAssetIncludedInOtherAssetsIncludingIntangiblesNet	3268000000	USD
CY2018Q4	xom	Deferred Tax Asset Included In Other Assets Including Intangibles Net DeferredTaxAssetIncludedInOtherAssetsIncludingIntangiblesNet	3209000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	25620000000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	27244000000	USD
CY2018Q4	us-gaap	Deferred Tax And Other Liabilities Noncurrent DeferredTaxAndOtherLiabilitiesNoncurrent	24035000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9174000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8783000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9468000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	287000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	375000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	522000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	120000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	240000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	523000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	97000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	125000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	865000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	279000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	113000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	538000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	68000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	782000000	USD
CY2019	xom	Unrecognized Tax Benefits Foreign Exchange Effects Other UnrecognizedTaxBenefitsForeignExchangeEffectsOther	-177000000	USD
CY2018	xom	Unrecognized Tax Benefits Foreign Exchange Effects Other UnrecognizedTaxBenefitsForeignExchangeEffectsOther	26000000	USD
CY2017	xom	Unrecognized Tax Benefits Foreign Exchange Effects Other UnrecognizedTaxBenefitsForeignExchangeEffectsOther	-30000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8844000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	9174000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	8783000000	USD
CY2019	xom	Percentage Decrease In Unrecognized Tax Benefits PercentageDecreaseInUnrecognizedTaxBenefits	0.10	pure
CY2019	xom	Percentage Increase In Unrecognized Tax Benefits PercentageIncreaseInUnrecognizedTaxBenefits	0.10	pure
CY2019	us-gaap	Income Tax Examination Interest Expense IncomeTaxExaminationInterestExpense	0	USD
CY2018	us-gaap	Income Tax Examination Interest Expense IncomeTaxExaminationInterestExpense	3000000	USD
CY2017	us-gaap	Income Tax Examination Interest Expense IncomeTaxExaminationInterestExpense	36000000	USD
CY2019Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	71000000	USD
CY2018Q4	us-gaap	Income Tax Examination Interest Accrued IncomeTaxExaminationInterestAccrued	169000000	USD
CY2019	us-gaap	Disposal Group Including Discontinued Operation Description And Timing Of Disposal DisposalGroupIncludingDiscontinuedOperationDescriptionAndTimingOfDisposal	December 10, 2019
CY2019	us-gaap	Disposal Group Not Discontinued Operation Name DisposalGroupNotDiscontinuedOperationName	non-operated upstream assets in Norway
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CY2019Q4	xom	Two Thousand Nineteen Disposal Group Including Discontinued Operation Proceeds From Sale Of Business TwoThousandNineteenDisposalGroupIncludingDiscontinuedOperationProceedsFromSaleOfBusiness	3100000000	USD
CY2019Q4	xom	Disposal Group Including Discontinued Operation Estimated Refund Of Income Tax Payments Due To Sale Of Business DisposalGroupIncludingDiscontinuedOperationEstimatedRefundOfIncomeTaxPaymentsDueToSaleOfBusiness	600000000	USD
CY2019Q4	xom	Disposal Group Including Discontinued Operation Estimated Deferred Proceeds From Sale Of Business DisposalGroupIncludingDiscontinuedOperationEstimatedDeferredProceedsFromSaleOfBusiness	300000000	USD

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$XOM
EXXON MOBIL CORP Stock $xom

2019 Q4 Form 10-K Financial Statement

#000003408820000016 Filed on February 26, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$XOM EXXON MOBIL CORP Stock $xom

2019 Q4 Form 10-K Financial Statement

#000003408820000016 Filed on February 26, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$XOM
EXXON MOBIL CORP Stock $xom