$IMO
IMPERIAL OIL LTD Stock $imo

$imo Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000004993824000010 Filed on February 28, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	12.28B cads	$13.01B	50.97B cads
YoY Change	1.34%	-9.67%	-14.58%
Cost Of Revenue	$9.370B	$9.989B	$39.28B
YoY Change	1.47%	-8.0%	-13.0%
Gross Profit	$2.879B	$3.019B	$11.42B
YoY Change	1.98%	-14.77%	-19.93%
Gross Profit Margin	23.44%	23.21%	22.41%
Selling, General & Admin	$837.0M	$849.0M	$3.259B
YoY Change	17.06%	3.54%	6.47%
% of Gross Profit	29.07%	28.12%	28.53%
Research & Development	$1.000M	$2.000M	84.00M cads
YoY Change	0.0%	100.0%	13.51%
% of Gross Profit	0.03%	0.07%	0.74%
Depreciation & Amortization	490.0M cads	$489.0M	1.907B cads
YoY Change	0.0%	5.16%	0.53%
% of Gross Profit	17.02%	16.2%	16.69%
Operating Expenses	$1.329B	$1.362B	84.00M cads
YoY Change	8.4%	5.58%	13.51%
Operating Profit	$1.550B	$1.657B	$11.34B
YoY Change	-2.94%	-26.42%	-20.1%
Interest Expense	12.00M cads	$33.00M	69.00M cads
YoY Change	-25.0%	13.79%	15.0%
% of Operating Profit	0.77%	1.99%	0.61%
Other Income/Expense, Net	-$1.000M	-$4.000M	-$7.000M
YoY Change		-20.0%	16.67%
Pretax Income	1.572B cads	$1.740B	6.369B cads
YoY Change	-4.44%	-23.65%	-32.84%
Income Tax	377.0M cads	$375.0M	1.480B cads
% Of Pretax Income	23.98%	21.55%	23.24%
Net Earnings	1.195B cads	$1.365B	4.889B cads
YoY Change	-4.25%	-20.96%	-33.39%
Net Earnings / Revenue	9.73%	10.49%	9.59%
Basic Earnings Per Share	$2.23		$8.51
Diluted Earnings Per Share	$2.23	$2.47	$8.49
COMMON SHARES
Basic Shares Outstanding	535.8M shares		574.8M shares
Diluted Shares Outstanding	536.9M shares		575.9M shares

Balance Sheet

Concept	2024 Q1	2023 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.176B	$864.0M
YoY Change	-47.57%	-76.95%
Cash & Equivalents	1.176B cads	864.0M cads
Short-Term Investments
Other Short-Term Assets	$1.043B	$1.008B
YoY Change	5.46%	33.69%
Inventory	$2.106B	$1.944B
Prepaid Expenses
Receivables	$4.508B	$3.434B
Other Receivables	$696.0M	$1.048B
Total Short-Term Assets	9.529B cads	8.298B cads
YoY Change	2.77%	-22.71%
LONG-TERM ASSETS
Property, Plant & Equipment	30.84B cads	30.84B cads
YoY Change	1.3%	1.08%
Goodwill	166.0M cads	166.0M cads
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$811.0M	$779.0M
YoY Change	14.55%	28.76%
Other Assets	897.0M cads	838.0M cads
YoY Change	-27.66%	-31.48%
Total Long-Term Assets	32.98B cads	32.90B cads
YoY Change	0.43%	0.34%
TOTAL ASSETS
Total Short-Term Assets	9.529B cads	8.298B cads
Total Long-Term Assets	32.98B cads	32.90B cads
Total Assets	42.51B cads	41.20B cads
YoY Change	0.95%	-5.34%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.891B	$5.689B
YoY Change	18.2%	-6.65%
Accrued Expenses	$77.00M	$542.0M
YoY Change	-23.0%	442.0%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$121.0M	$121.0M
YoY Change	-0.82%	-0.82%
Total Short-Term Liabilities	7.106B cads	6.603B cads
YoY Change	8.37%	-25.79%
LONG-TERM LIABILITIES
Long-Term Debt	3.447B cads	3.447B cads
YoY Change	0.0%	0.0%
Other Long-Term Liabilities	3.860B cads	3.851B cads
YoY Change	13.23%	11.08%
Total Long-Term Liabilities	7.307B cads	7.298B cads
YoY Change	6.58%	5.55%
TOTAL LIABILITIES
Total Short-Term Liabilities	7.106B cads	6.603B cads
Total Long-Term Liabilities	7.307B cads	7.298B cads
Total Liabilities	19.40B cads	18.98B cads
YoY Change	3.86%	-10.11%
SHAREHOLDERS EQUITY
Retained Earnings	22.78B cads	21.91B cads
YoY Change	-0.25%	0.28%
Common Stock	992.0M cads	992.0M cads
YoY Change	-8.06%	-8.06%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	23.11B cads	22.22B cads
YoY Change
Total Liabilities & Shareholders Equity	42.51B cads	41.20B cads
YoY Change	0.95%	-5.34%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	1.195B cads	$1.365B	4.889B cads
YoY Change	-4.25%	-20.96%	-33.39%
Depreciation, Depletion And Amortization	490.0M cads	$489.0M	1.907B cads
YoY Change	0.0%	5.16%	0.53%
Cash From Operating Activities	1.076B cads	$1.311B	3.734B cads
YoY Change	-231.06%	-53.13%	-64.38%
INVESTING ACTIVITIES
Capital Expenditures	$497.0M	$470.0M	$1.785B
YoY Change	15.85%	-4.47%	16.97%
Acquisitions
YoY Change
Other Investing Activities	$16.00M	$59.00M	$91.00M
YoY Change	6.67%	210.53%	-89.98%
Cash From Investing Activities	-481.0M cads	-$411.0M	-1.694B cads
YoY Change	16.18%	-13.11%	174.11%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			3.800B cads
YoY Change			-40.58%
Debt Paid & Issued, Net			0.000 cads
YoY Change			-100.0%
Cash From Financing Activities	-283.0M cads	-2.752B	-4.925B cads
YoY Change	4.43%	27.94%	-40.43%
NET CHANGE
Cash From Operating Activities	1.076B cads	1.311B	3.734B cads
Cash From Investing Activities	-481.0M cads	-411.0M	-1.694B cads
Cash From Financing Activities	-283.0M cads	-2.752B	-4.925B cads
Net Change In Cash	312.0M cads	-1.852B	-2.885B cads
YoY Change	-120.72%	-1170.52%	-280.76%
FREE CASH FLOW
Cash From Operating Activities	1.076B cads	$1.311B	3.734B cads
Capital Expenditures	$497.0M	$470.0M	$1.785B
Free Cash Flow	579.0M cads	$841.0M	1.949B cads
YoY Change	-146.32%	-63.51%	-78.24%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000049938
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
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CY2023Q4	us-gaap	Derivative Liability Statement Of Financial Position Extensible Enumeration DerivativeLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#AccountsPayableAndAccruedLiabilitiesCurrent http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
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CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
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CY2022Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#LongTermDebtAndCapitalLeaseObligations http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
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CY2022Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity Registrant Name EntityRegistrantName	IMPERIAL OIL LIMITED
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	Z4
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-0017682
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	505 Quarry Park Boulevard S.E.
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Calgary
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	AB
CY2023	dei	Entity Address Country EntityAddressCountry	CA
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	T2C 5N1
CY2023	dei	City Area Code CityAreaCode	800
CY2023	dei	Local Phone Number LocalPhoneNumber	567-3776
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
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CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Firm AuditorFirmId	271
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
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CY2023	dei	Auditor Location AuditorLocation	Calgary, Canada
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CY2021	us-gaap	Exploration Expense ExplorationExpense	32000000	cad
CY2023	imo	Crude Oil And Product Purchases CrudeOilAndProductPurchases	32399000000	cad
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CY2023	imo	Production And Manufacturing Expenses ProductionAndManufacturingExpenses	6879000000	cad
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CY2021	imo	Production And Manufacturing Expenses ProductionAndManufacturingExpenses	6316000000	cad
CY2023	imo	Selling And General SellingAndGeneral	857000000	cad
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CY2021	imo	Selling And General SellingAndGeneral	784000000	cad
CY2023	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	2402000000	cad
CY2022	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	2179000000	cad
CY2021	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	1928000000	cad
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1907000000	cad
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1897000000	cad
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1977000000	cad
CY2022	imo	Pension And Post Retirement Benefit Costs Non Service Components PensionAndPostRetirementBenefitCostsNonServiceComponents	17000000	cad
CY2021	imo	Pension And Post Retirement Benefit Costs Non Service Components PensionAndPostRetirementBenefitCostsNonServiceComponents	42000000	cad
CY2021	us-gaap	Interest Expense InterestExpense	54000000	cad
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1480000000	cad
CY2023	us-gaap	Net Income Loss NetIncomeLoss	4889000000	cad
CY2022	us-gaap	Net Income Loss NetIncomeLoss	7340000000	cad
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.51
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.47
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.48
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.49
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.44
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.48
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CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	21735000000	cad
CY2023	us-gaap	Profit Loss ProfitLoss	4889000000	cad
CY2022	us-gaap	Profit Loss ProfitLoss	7340000000	cad
CY2021	us-gaap	Profit Loss ProfitLoss	2479000000	cad
CY2023	imo	Depreciation Depletion And Amortization Excluding Intangible Asset Impairment Charges DepreciationDepletionAndAmortizationExcludingIntangibleAssetImpairmentCharges	1907000000	cad
CY2022	imo	Depreciation Depletion And Amortization Excluding Intangible Asset Impairment Charges DepreciationDepletionAndAmortizationExcludingIntangibleAssetImpairmentCharges	1897000000	cad
CY2021	imo	Depreciation Depletion And Amortization Excluding Intangible Asset Impairment Charges DepreciationDepletionAndAmortizationExcludingIntangibleAssetImpairmentCharges	1977000000	cad
CY2023	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	73000000	cad
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	158000000	cad
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	49000000	cad
CY2023	imo	Deferred Income Taxes And Other DeferredIncomeTaxesAndOther	-85000000	cad
CY2022	imo	Deferred Income Taxes And Other DeferredIncomeTaxesAndOther	-77000000	cad
CY2021	imo	Deferred Income Taxes And Other DeferredIncomeTaxesAndOther	91000000	cad
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-237000000	cad
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	862000000	cad
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1950000000	cad
CY2023	imo	Increase Decrease In Inventories Materials And Supplies And Prepaid Expenses IncreaseDecreaseInInventoriesMaterialsAndSuppliesAndPrepaidExpenses	688000000	cad
CY2022	imo	Increase Decrease In Inventories Materials And Supplies And Prepaid Expenses IncreaseDecreaseInInventoriesMaterialsAndSuppliesAndPrepaidExpenses	477000000	cad
CY2021	imo	Increase Decrease In Inventories Materials And Supplies And Prepaid Expenses IncreaseDecreaseInInventoriesMaterialsAndSuppliesAndPrepaidExpenses	-45000000	cad
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-2331000000	cad
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	1876000000	cad
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	248000000	cad
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	81000000	cad
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	948000000	cad
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	2020000000	cad
CY2023	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	203000000	cad
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5000000	cad
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-615000000	cad
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3734000000	cad
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	10482000000	cad
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5476000000	cad
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1785000000	cad
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1526000000	cad
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1108000000	cad
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	86000000	cad
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	904000000	cad
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	81000000	cad
CY2023	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	cad
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	6000000	cad
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	0	cad
CY2023	imo	Net Movement Related To Loans To Equity Companies NetMovementRelatedToLoansToEquityCompanies	-5000000	cad
CY2022	imo	Net Movement Related To Loans To Equity Companies NetMovementRelatedToLoansToEquityCompanies	-10000000	cad
CY2021	imo	Net Movement Related To Loans To Equity Companies NetMovementRelatedToLoansToEquityCompanies	-15000000	cad
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1694000000	cad
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-618000000	cad
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1012000000	cad
CY2023	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	cad
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	0	cad
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-111000000	cad
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	cad
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1000000000	cad
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	cad
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	22000000	cad
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	22000000	cad
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	20000000	cad
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1103000000	cad
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	851000000	cad
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	706000000	cad
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3800000000	cad
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	6395000000	cad
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2245000000	cad
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4925000000	cad
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-8268000000	cad
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3082000000	cad
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2885000000	cad
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1596000000	cad
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1382000000	cad
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3749000000	cad
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2153000000	cad
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	771000000	cad
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	864000000	cad
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3749000000	cad
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2153000000	cad
CY2023	imo	Contribution To Registered Pension Plan Assets ContributionToRegisteredPensionPlanAssets	148000000	cad
CY2022	imo	Contribution To Registered Pension Plan Assets ContributionToRegisteredPensionPlanAssets	174000000	cad
CY2021	imo	Contribution To Registered Pension Plan Assets ContributionToRegisteredPensionPlanAssets	164000000	cad
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4153000000	cad
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	374000000	cad
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-58000000	cad
CY2023	us-gaap	Interest Paid Net InterestPaidNet	69000000	cad
CY2022	us-gaap	Interest Paid Net InterestPaidNet	60000000	cad
CY2021	us-gaap	Interest Paid Net InterestPaidNet	43000000	cad
CY2023	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	50702000000	cad
CY2022	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	59413000000	cad
CY2021	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	37508000000	cad
CY2023	imo	Investment And Other Income Net InvestmentAndOtherIncomeNet	267000000	cad
CY2022	imo	Investment And Other Income Net InvestmentAndOtherIncomeNet	257000000	cad
CY2021	imo	Investment And Other Income Net InvestmentAndOtherIncomeNet	82000000	cad
CY2023	us-gaap	Revenues Revenues	50969000000	cad
CY2022	us-gaap	Revenues Revenues	59670000000	cad
CY2021	us-gaap	Revenues Revenues	37590000000	cad
CY2023	us-gaap	Exploration Expense ExplorationExpense	5000000	cad
CY2022	us-gaap	Exploration Expense ExplorationExpense	5000000	cad
CY2021	us-gaap	Exploration Expense ExplorationExpense	32000000	cad
CY2023	imo	Crude Oil And Product Purchases CrudeOilAndProductPurchases	32399000000	cad
CY2022	imo	Crude Oil And Product Purchases CrudeOilAndProductPurchases	37742000000	cad
CY2021	imo	Crude Oil And Product Purchases CrudeOilAndProductPurchases	23174000000	cad
CY2023	imo	Production And Manufacturing Expenses ProductionAndManufacturingExpenses	6879000000	cad
CY2022	imo	Production And Manufacturing Expenses ProductionAndManufacturingExpenses	7404000000	cad
CY2021	imo	Production And Manufacturing Expenses ProductionAndManufacturingExpenses	6316000000	cad
CY2023	imo	Selling And General SellingAndGeneral	857000000	cad
CY2022	imo	Selling And General SellingAndGeneral	882000000	cad
CY2021	imo	Selling And General SellingAndGeneral	784000000	cad
CY2023	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	2402000000	cad
CY2022	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	2179000000	cad
CY2021	imo	Federal Excise Tax And Fuel Charge FederalExciseTaxAndFuelCharge	1928000000	cad
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1907000000	cad
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1897000000	cad
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1977000000	cad
CY2023	imo	Pension And Post Retirement Benefit Costs Non Service Components PensionAndPostRetirementBenefitCostsNonServiceComponents	82000000	cad
CY2022	imo	Pension And Post Retirement Benefit Costs Non Service Components PensionAndPostRetirementBenefitCostsNonServiceComponents	17000000	cad
CY2021	imo	Pension And Post Retirement Benefit Costs Non Service Components PensionAndPostRetirementBenefitCostsNonServiceComponents	42000000	cad
CY2023	us-gaap	Interest Expense InterestExpense	69000000	cad
CY2022	us-gaap	Interest Expense InterestExpense	60000000	cad
CY2021	us-gaap	Interest Expense InterestExpense	54000000	cad
CY2023	us-gaap	Costs And Expenses CostsAndExpenses	44600000000	cad
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	50186000000	cad
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	34307000000	cad
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6369000000	cad
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	9484000000	cad
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3283000000	cad
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1480000000	cad
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2144000000	cad
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	804000000	cad
CY2023	us-gaap	Net Income Loss NetIncomeLoss	4889000000	cad
CY2022	us-gaap	Net Income Loss NetIncomeLoss	7340000000	cad
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2479000000	cad
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3734000000	cad
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	10482000000	cad
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5476000000	cad
CY2023	imo	Capital And Exploration Expenditures CapitalAndExplorationExpenditures	1778000000	cad
CY2022	imo	Capital And Exploration Expenditures CapitalAndExplorationExpenditures	1490000000	cad
CY2021	imo	Capital And Exploration Expenditures CapitalAndExplorationExpenditures	1140000000	cad
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	56200000000	cad
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	54568000000	cad
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	56762000000	cad
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25365000000	cad
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	24062000000	cad
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25522000000	cad
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	30835000000	cad
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	30506000000	cad
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	31240000000	cad
CY2023Q4	us-gaap	Assets Assets	41199000000	cad
CY2022Q4	us-gaap	Assets Assets	43524000000	cad
CY2021Q4	us-gaap	Assets Assets	40782000000	cad
CY2023	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	44465000000	cad
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	52265000000	cad
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	34275000000	cad
CY2023	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	6237000000	cad
CY2022	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	7148000000	cad
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	3233000000	cad
CY2023	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	50702000000	cad
CY2022	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	59413000000	cad
CY2021	imo	Revenues Including Federal Excise Tax RevenuesIncludingFederalExciseTax	37508000000	cad
CY2023Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	3251000000	cad
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	2676000000	cad
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	2348000000	cad
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1556000000	cad
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2228000000	cad
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	711000000	cad
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-76000000	cad
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-84000000	cad
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	93000000	cad
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1480000000	cad
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2144000000	cad
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	804000000	cad
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.241
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.241
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.240
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.009
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.015
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.232
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.226
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.245
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	-0.013
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5366000000	cad
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5388000000	cad
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5284000000	cad
CY2023Q4	imo	Deferred Tax Liabilities Deferred Expense Capitalized Successful Drilling And Land Acquisition DeferredTaxLiabilitiesDeferredExpenseCapitalizedSuccessfulDrillingAndLandAcquisition	237000000	cad
CY2022Q4	imo	Deferred Tax Liabilities Deferred Expense Capitalized Successful Drilling And Land Acquisition DeferredTaxLiabilitiesDeferredExpenseCapitalizedSuccessfulDrillingAndLandAcquisition	236000000	cad
CY2021Q4	imo	Deferred Tax Liabilities Deferred Expense Capitalized Successful Drilling And Land Acquisition DeferredTaxLiabilitiesDeferredExpenseCapitalizedSuccessfulDrillingAndLandAcquisition	331000000	cad
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	168000000	cad
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	105000000	cad
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	303000000	cad
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	655000000	cad
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	529000000	cad
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	418000000	cad
CY2023Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	155000000	cad
CY2022Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	127000000	cad
CY2021Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Interest DeferredTaxLiabilitiesDeferredExpenseCapitalizedInterest	120000000	cad
CY2023Q4	imo	Deferred Tax Assets Inventory Noncurrent DeferredTaxAssetsInventoryNoncurrent	406000000	cad
CY2022Q4	imo	Deferred Tax Assets Inventory Noncurrent DeferredTaxAssetsInventoryNoncurrent	454000000	cad
CY2021Q4	imo	Deferred Tax Assets Inventory Noncurrent DeferredTaxAssetsInventoryNoncurrent	413000000	cad
CY2023Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	69000000	cad
CY2022Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	84000000	cad
CY2021Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	42000000	cad
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	69000000	cad
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	73000000	cad
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	cad
CY2023Q4	imo	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	60000000	cad
CY2022Q4	imo	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	53000000	cad
CY2021Q4	imo	Deferred Tax Assets Other Non Current DeferredTaxAssetsOtherNonCurrent	101000000	cad
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4469000000	cad
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4599000000	cad
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	4458000000	cad
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	60000000	cad
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000	cad
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	36000000	cad
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	7000000	cad
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	12000000	cad
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	16000000	cad
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	cad
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	10000000	cad
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	cad
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	20000000	cad
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	9000000	cad
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5000000	cad
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000	cad
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	60000000	cad
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	47000000	cad
CY2023Q4	us-gaap	Defined Benefit Plan Health Care Cost Trend Rate Assumed Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear	0.058
CY2023Q4	imo	Defined Benefit Plan Health Care Cost Trend Rate Assumed Later Than Next Fiscal Year DefinedBenefitPlanHealthCareCostTrendRateAssumedLaterThanNextFiscalYear	0.0357
CY2023	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.048
CY2023	imo	Actual Rate Of Return Over The Last10 Years ActualRateOfReturnOverTheLast10Years	0.057
CY2023	imo	Actual Rate Of Return Over The Last20 Years ActualRateOfReturnOverTheLast20Years	0.061
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	44000000	cad
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	43000000	cad
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	47000000	cad
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	218000000	cad
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-880000000	cad
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1076000000	cad
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	53000000	cad
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-215000000	cad
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-264000000	cad
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	165000000	cad
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-665000000	cad
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-812000000	cad
CY2023Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	8054000000	cad
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	7541000000	cad
CY2023Q4	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Next Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear	150000000	cad
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	954000000	cad
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	902000000	cad
CY2023Q4	imo	Asset Retirement Obligation And Other Environmental Liabilities Noncurrent AssetRetirementObligationAndOtherEnvironmentalLiabilitiesNoncurrent	2564000000	cad
CY2022Q4	imo	Asset Retirement Obligation And Other Environmental Liabilities Noncurrent AssetRetirementObligationAndOtherEnvironmentalLiabilitiesNoncurrent	2150000000	cad
CY2023Q4	us-gaap	Deferred Compensation Sharebased Arrangements Liability Classified Noncurrent DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent	90000000	cad
CY2022Q4	us-gaap	Deferred Compensation Sharebased Arrangements Liability Classified Noncurrent DeferredCompensationSharebasedArrangementsLiabilityClassifiedNoncurrent	101000000	cad
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	111000000	cad
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	151000000	cad
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	132000000	cad
CY2022Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	163000000	cad
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3851000000	cad
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	3467000000	cad
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	62000000	cad
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	63000000	cad
CY2023Q4	imo	Asset Retirement Obligation And Other Environmental Liabilities Current AssetRetirementObligationAndOtherEnvironmentalLiabilitiesCurrent	235000000	cad
CY2022Q4	imo	Asset Retirement Obligation And Other Environmental Liabilities Current AssetRetirementObligationAndOtherEnvironmentalLiabilitiesCurrent	116000000	cad
CY2023	imo	Asset Retirement Obligations Discounted Rate AssetRetirementObligationsDiscountedRate	0.06
CY2022	imo	Asset Retirement Obligations Discounted Rate AssetRetirementObligationsDiscountedRate	0.06
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2178000000	cad
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1721000000	cad
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1674000000	cad
CY2023	imo	Asset Retirement Obligation Liabilities Incurred Settled AssetRetirementObligationLiabilitiesIncurredSettled	471000000	cad
CY2022	imo	Asset Retirement Obligation Liabilities Incurred Settled AssetRetirementObligationLiabilitiesIncurredSettled	415000000	cad
CY2021	imo	Asset Retirement Obligation Liabilities Incurred Settled AssetRetirementObligationLiabilitiesIncurredSettled	6000000	cad
CY2023	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	132000000	cad
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	101000000	cad
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	99000000	cad
CY2023	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	78000000	cad
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	59000000	cad
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	58000000	cad
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2703000000	cad
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2178000000	cad
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1721000000	cad
CY2023Q4	imo	Estimated Cash Payments For Asset Retirement Obligations Year One EstimatedCashPaymentsForAssetRetirementObligationsYearOne	169000000	cad
CY2023Q4	imo	Estimated Cash Payments For Asset Retirement Obligations Year Two EstimatedCashPaymentsForAssetRetirementObligationsYearTwo	162000000	cad
CY2022Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3447000000	cad
CY2023Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3447000000	cad
CY2023	imo	Realized And Unrealized Revenue On Derivative Instrument RealizedAndUnrealizedRevenueOnDerivativeInstrument	-5000000	cad
CY2022	imo	Realized And Unrealized Revenue On Derivative Instrument RealizedAndUnrealizedRevenueOnDerivativeInstrument	148000000	cad
CY2021	imo	Realized And Unrealized Revenue On Derivative Instrument RealizedAndUnrealizedRevenueOnDerivativeInstrument	-46000000	cad
CY2023	imo	Realized And Unrealized Purchase On Derivative Instrument RealizedAndUnrealizedPurchaseOnDerivativeInstrument	0	cad
CY2022	imo	Realized And Unrealized Purchase On Derivative Instrument RealizedAndUnrealizedPurchaseOnDerivativeInstrument	0	cad
CY2021	imo	Realized And Unrealized Purchase On Derivative Instrument RealizedAndUnrealizedPurchaseOnDerivativeInstrument	33000000	cad
CY2023	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-5000000	cad
CY2022	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	148000000	cad
CY2021	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-79000000	cad
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	46000000	cad
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	47000000	cad
CY2022Q4	us-gaap	Derivative Assets DerivativeAssets	49000000	cad
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	41000000	cad
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	52000000	cad
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	103000000	cad
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	89000000	cad
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	cad
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	25000000	cad
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	22000000	cad
CY2023	us-gaap	Employee Service Share Based Compensation Cash Flow Effect Cash Used To Settle Awards EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards	68000000	cad
CY2022	us-gaap	Employee Service Share Based Compensation Cash Flow Effect Cash Used To Settle Awards EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards	65000000	cad
CY2021	us-gaap	Employee Service Share Based Compensation Cash Flow Effect Cash Used To Settle Awards EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards	48000000	cad
CY2023	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	86000000	cad
CY2022	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	904000000	cad
CY2021	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	81000000	cad
CY2023	imo	Book Value Of Assets Sold BookValueOfAssetsSold	13000000	cad
CY2022	imo	Book Value Of Assets Sold BookValueOfAssetsSold	746000000	cad
CY2021	imo	Book Value Of Assets Sold BookValueOfAssetsSold	32000000	cad
CY2023	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	73000000	cad
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	158000000	cad
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	49000000	cad
CY2023	imo	Net Gain Loss On Asset Sales After Tax NetGainLossOnAssetSalesAfterTax	63000000	cad
CY2022	imo	Net Gain Loss On Asset Sales After Tax NetGainLossOnAssetSalesAfterTax	241000000	cad
CY2021	imo	Net Gain Loss On Asset Sales After Tax NetGainLossOnAssetSalesAfterTax	43000000	cad
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.51
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	11.47
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.48
CY2023	us-gaap	Net Income Loss NetIncomeLoss	4889000000	cad
CY2022	us-gaap	Net Income Loss NetIncomeLoss	7340000000	cad
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2479000000	cad
CY2023	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	0	cad
CY2023Q4	us-gaap	Other Commitment OtherCommitment	13000000	cad
CY2022Q4	us-gaap	Other Commitment OtherCommitment	17000000	cad
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1100000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1100000000	shares
CY2023Q4	us-gaap	Common Stock Other Shares Outstanding CommonStockOtherSharesOutstanding	535837000	shares
CY2022Q4	us-gaap	Common Stock Other Shares Outstanding CommonStockOtherSharesOutstanding	584153000	shares
CY2023Q2	us-gaap	Stock Repurchase Program Period In Force1 StockRepurchaseProgramPeriodInForce1	P12M
CY2023	us-gaap	Net Income Loss NetIncomeLoss	4889000000	cad
CY2022	us-gaap	Net Income Loss NetIncomeLoss	7340000000	cad
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2479000000	cad
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	574800000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	640200000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	711600000	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	574800000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	640200000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	711600000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1100000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1300000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1600000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	575900000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	641500000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	713200000	shares
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.49
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	11.44
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.48
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.94
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.46
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.03
CY2023	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	5000000	cad
CY2022	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	62000000	cad
CY2021	us-gaap	Effect Of Lifo Inventory Liquidation On Income EffectOfLIFOInventoryLiquidationOnIncome	-13000000	cad
CY2023Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	2200000000	cad
CY2022Q4	us-gaap	Excess Of Replacement Or Current Costs Over Stated Lifo Value ExcessOfReplacementOrCurrentCostsOverStatedLIFOValue	2000000000	cad
CY2023Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	979000000	cad
CY2022Q4	us-gaap	Energy Related Inventory Petroleum EnergyRelatedInventoryPetroleum	809000000	cad
CY2023Q4	imo	Petroleum Products Inventory PetroleumProductsInventory	579000000	cad
CY2022Q4	imo	Petroleum Products Inventory PetroleumProductsInventory	471000000	cad
CY2023Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	66000000	cad
CY2022Q4	us-gaap	Energy Related Inventory Chemicals EnergyRelatedInventoryChemicals	76000000	cad
CY2023Q4	imo	Other Products OtherProducts	320000000	cad
CY2022Q4	imo	Other Products OtherProducts	158000000	cad
CY2023Q4	us-gaap	Inventory Finished Goods And Work In Process InventoryFinishedGoodsAndWorkInProcess	1944000000	cad
CY2022Q4	us-gaap	Inventory Finished Goods And Work In Process InventoryFinishedGoodsAndWorkInProcess	1514000000	cad
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	74000000	cad
CY2021	imo	Inventory Write Down Adjustments Before Tax InventoryWriteDownAdjustmentsBeforeTax	82000000	cad
CY2021	imo	Out Of Period Impact Of The Inventory Write Down OutOfPeriodImpactOfTheInventoryWriteDown	57000000	cad
CY2021	imo	Out Of Period Impact Of The Inventory Write Down Adjustment Before Tax OutOfPeriodImpactOfTheInventoryWriteDownAdjustmentBeforeTax	63000000	cad
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	84000000	cad
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	74000000	cad
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	89000000	cad
CY2023Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	455000000	cad
CY2022Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	458000000	cad
CY2023Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	726000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	49000000	cad
CY2023	us-gaap	Interest And Debt Expense InterestAndDebtExpense	203000000	cad
CY2022	us-gaap	Interest And Debt Expense InterestAndDebtExpense	111000000	cad
CY2021	us-gaap	Interest And Debt Expense InterestAndDebtExpense	63000000	cad
CY2023	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	141000000	cad
CY2022	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	57000000	cad
CY2021	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	24000000	cad
CY2023	us-gaap	Interest Expense Debt InterestExpenseDebt	62000000	cad
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	54000000	cad
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	39000000	cad
CY2023	imo	Interest Income Expense Other InterestIncomeExpenseOther	-7000000	cad
CY2022	imo	Interest Income Expense Other InterestIncomeExpenseOther	-6000000	cad
CY2021	imo	Interest Income Expense Other InterestIncomeExpenseOther	-15000000	cad
CY2023	us-gaap	Interest Expense InterestExpense	69000000	cad
CY2022	us-gaap	Interest Expense InterestExpense	60000000	cad
CY2021	us-gaap	Interest Expense InterestExpense	54000000	cad
CY2023Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.049
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.02
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.002
CY2023Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.049
CY2022Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.019
CY2021Q4	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.006
CY2023Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	500000000	cad
CY2021	us-gaap	Repayments Of Debt RepaymentsOfDebt	111000000	cad
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	114000000	cad
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	119000000	cad
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	123000000	cad
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	30000000	cad
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	40000000	cad
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	19000000	cad
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	19000000	cad
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	19000000	cad
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	17000000	cad
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	29000000	cad
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	30000000	cad
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	33000000	cad
CY2023	imo	Operating Lease And Short Term Lease Cost OperatingLeaseAndShortTermLeaseCost	144000000	cad
CY2023	imo	Finance Lease Cost FinanceLeaseCost	48000000	cad
CY2022	imo	Operating Lease And Short Term Lease Cost OperatingLeaseAndShortTermLeaseCost	159000000	cad
CY2022	imo	Finance Lease Cost FinanceLeaseCost	49000000	cad
CY2021	imo	Operating Lease And Short Term Lease Cost OperatingLeaseAndShortTermLeaseCost	142000000	cad
CY2021	imo	Finance Lease Cost FinanceLeaseCost	50000000	cad
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	196000000	cad
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	245000000	cad
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	599000000	cad
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	618000000	cad
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	196000000	cad
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	599000000	cad
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	245000000	cad
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	618000000	cad
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	87000000	cad
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	100000000	cad
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	111000000	cad
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	151000000	cad
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	198000000	cad
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	585000000	cad
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	251000000	cad
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	608000000	cad
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P36Y
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P37Y
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.019
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.047
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.011
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.047
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	90000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	38000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	46000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	16000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	44000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	10000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	43000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	42000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	46000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	858000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	209000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1082000000	cad
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	11000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	497000000	cad
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	198000000	cad
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	585000000	cad
CY2023	imo	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Commitments LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedCommitments	54000000	cad
CY2022	imo	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Commitments LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedCommitments	14000000	cad
CY2023Q4	imo	Operating And Finance Leases Not Yet Commenced Payments Due Year One OperatingAndFinanceLeasesNotYetCommencedPaymentsDueYearOne	1000000	cad
CY2023Q4	imo	Operating And Finance Leases Not Yet Commenced Payments Due Year Two OperatingAndFinanceLeasesNotYetCommencedPaymentsDueYearTwo	48000000	cad
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	56000000	cad
CY2023	imo	Finance Lease Principal Payments For Operating Activities FinanceLeasePrincipalPaymentsForOperatingActivities	0	cad
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	121000000	cad
CY2022	imo	Finance Lease Principal Payments For Operating Activities FinanceLeasePrincipalPaymentsForOperatingActivities	0	cad
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	122000000	cad
CY2021	imo	Finance Lease Principal Payments For Operating Activities FinanceLeasePrincipalPaymentsForOperatingActivities	0	cad
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	22000000	cad
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	22000000	cad
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	20000000	cad
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	61000000	cad
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	cad
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	117000000	cad
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	cad
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	176000000	cad
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	123000000	cad
CY2021Q4	imo	Projects That Have Exploratory Well Costs That Have Been Capitalized ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalized	0	project
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3447000000	cad
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3447000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	564000000	cad
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	586000000	cad
CY2023Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	4011000000	cad
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	4033000000	cad
CY2023Q4	imo	Maximum Longterm Borrowing From Affiliate MaximumLongtermBorrowingFromAffiliate	7750000000	cad
CY2023	imo	Cancelation Period Longterm Borrowing From Affiliate CancelationPeriodLongtermBorrowingFromAffiliate	P370D
CY2022Q3	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1000000000	cad
CY2023	imo	Finance Lease Obligation Average Imputed Rate FinanceLeaseObligationAverageImputedRate	0.047
CY2022	imo	Finance Lease Obligation Average Imputed Rate FinanceLeaseObligationAverageImputedRate	0.047
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	21000000	cad
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	22000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	18000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	18000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	18000000	cad
CY2023Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Five FinanceLeaseLiabilityPaymentsDueInRollingYearFive	18000000	cad
CY2022Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	cad
CY2023Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	cad
CY2021Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	0	cad
CY2022Q4	imo	Projects That Have Exploratory Well Costs That Have Been Capitalized ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalized	0	project
CY2023Q4	imo	Projects That Have Exploratory Well Costs That Have Been Capitalized ProjectsThatHaveExploratoryWellCostsThatHaveBeenCapitalized	0	project
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-66000000	cad
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	188000000	cad
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	221000000	cad
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-13000000	cad
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-27000000	cad
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-43000000	cad
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	53000000	cad
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-215000000	cad
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-264000000	cad
CY2022Q3	imo	Discontinued Operation Gain Loss On Disposal Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag DiscontinuedOperationGainLossOnDisposalStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag	0.2 billion

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$IMO
IMPERIAL OIL LTD Stock $imo

2024 Q1 Form 10-K Financial Statement

#000004993824000010 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IMO IMPERIAL OIL LTD Stock $imo

2024 Q1 Form 10-K Financial Statement

#000004993824000010 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$IMO
IMPERIAL OIL LTD Stock $imo