10-K Filing

MARATHON PETROLEUM CORP CIK: 1510295 FY 2017

Filing Information

Form Type	10-K
Accession Number	`0001510295-18-000024`
Period End Date	20171231
Filing Date	20180228
Fiscal Year	2017
Fiscal Period	FY
XBRL Instance	mpc-20171231.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 112 Income Statement 132 Cash Flow Statement 133 Stockholders Equity 36 Comprehensive Income 38

Balance Sheet 112 line items

Line Item	Tag	Value	Unit	Period
Cash and cash equivalents (MPLX: $5 and $234, respectively)	`CashAndCashEquivalentsAtCarryingValue`	$1.49B	USD	Point-in-time
Cash and cash equivalents (MPLX: $5 and $234, respectively)	`CashAndCashEquivalentsAtCarryingValue`	$3.01B	USD	Point-in-time
Cash and cash equivalents (MPLX: $5 and $234, respectively)	`CashAndCashEquivalentsAtCarryingValue`	$1.13B	USD	Point-in-time
Cash and cash equivalents (MPLX: $5 and $234, respectively)	`CashAndCashEquivalentsAtCarryingValue`	$887.00M	USD	Point-in-time
Receivables, less allowance for doubtful accounts of $11 and $12 (MPLX: $299 and $304, respectively)	`AccountsReceivableNetCurrent`	$4.70B	USD	Point-in-time
Receivables, less allowance for doubtful accounts of $11 and $12 (MPLX: $299 and $304, respectively)	`AccountsReceivableNetCurrent`	$3.62B	USD	Point-in-time
Inventories (MPLX: $65 and $55, respectively)	`InventoryNet`	$5.66B	USD	Point-in-time
Inventories (MPLX: $65 and $55, respectively)	`InventoryNet`	$5.55B	USD	Point-in-time
Other current assets (MPLX: $29 and $33, respectively)	`OtherAssetsCurrent`	$241.00M	USD	Point-in-time
Other current assets (MPLX: $29 and $33, respectively)	`OtherAssetsCurrent`	$145.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.49B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$3.01B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$10.40B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$13.40B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.13B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$887.00M	USD	Point-in-time
Equity method investments (MPLX: $4,010 and $2,471, respectively)	`EquityMethodInvestments`	$3.83B	USD	Point-in-time
Receivables, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$4.70B	USD	Point-in-time
Receivables, less allowance for doubtful accounts	`AccountsReceivableNetCurrent`	$3.62B	USD	Point-in-time
Equity method investments (MPLX: $4,010 and $2,471, respectively)	`EquityMethodInvestments`	$4.79B	USD	Point-in-time
Property, plant and equipment, net (MPLX: $12,187 and $11,408, respectively)	`PropertyPlantAndEquipmentNet`	$26.44B	USD	Point-in-time
Inventories	`InventoryNet`	$5.66B	USD	Point-in-time
Inventories	`InventoryNet`	$5.55B	USD	Point-in-time
Property, plant and equipment, net (MPLX: $12,187 and $11,408, respectively)	`PropertyPlantAndEquipmentNet`	$25.77B	USD	Point-in-time
Goodwill (MPLX: $2,245 and $2,245, respectively)	`Goodwill`	$4.02B	USD	Point-in-time
Goodwill (MPLX: $2,245 and $2,245, respectively)	`Goodwill`	$3.59B	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$241.00M	USD	Point-in-time
Goodwill (MPLX: $2,245 and $2,245, respectively)	`Goodwill`	$3.59B	USD	Point-in-time
Other current assets	`OtherAssetsCurrent`	$145.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$3.83B	USD	Point-in-time
Other noncurrent assets (MPLX: $479 and $506, respectively)	`OtherAssetsNoncurrent`	$830.00M	USD	Point-in-time
Other noncurrent assets (MPLX: $479 and $506, respectively)	`OtherAssetsNoncurrent`	$833.00M	USD	Point-in-time
Equity method investments	`EquityMethodInvestments`	$4.79B	USD	Point-in-time
Total assets	`Assets`	$49.05B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$26.44B	USD	Point-in-time
Total assets	`Assets`	$44.41B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$25.77B	USD	Point-in-time
Goodwill	`Goodwill`	$4.02B	USD	Point-in-time
Goodwill	`Goodwill`	$3.59B	USD	Point-in-time
Goodwill	`Goodwill`	$3.59B	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$830.00M	USD	Point-in-time
Other noncurrent assets	`OtherAssetsNoncurrent`	$833.00M	USD	Point-in-time
Accounts payable (MPLX: $621 and $541, respectively)	`AccountsPayableCurrent`	$5.59B	USD	Point-in-time
Accounts payable (MPLX: $621 and $541, respectively)	`AccountsPayableCurrent`	$8.30B	USD	Point-in-time
Payroll and benefits payable (MPLX: $1 and $1, respectively)	`EmployeeRelatedLiabilitiesCurrent`	$530.00M	USD	Point-in-time
Payroll and benefits payable (MPLX: $1 and $1, respectively)	`EmployeeRelatedLiabilitiesCurrent`	$591.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$5.59B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$8.30B	USD	Point-in-time
Consumer excise taxes payable (MPLX: $3 and $3, respectively)	`SalesAndExciseTaxPayableCurrent`	$464.00M	USD	Point-in-time
Payroll and benefits payable	`EmployeeRelatedLiabilitiesCurrent`	$530.00M	USD	Point-in-time
Consumer excise taxes payable (MPLX: $3 and $3, respectively)	`SalesAndExciseTaxPayableCurrent`	$501.00M	USD	Point-in-time
Payroll and benefits payable	`EmployeeRelatedLiabilitiesCurrent`	$591.00M	USD	Point-in-time
Consumer excise taxes payable	`SalesAndExciseTaxPayableCurrent`	$464.00M	USD	Point-in-time
Consumer excise taxes payable	`SalesAndExciseTaxPayableCurrent`	$501.00M	USD	Point-in-time
Accrued taxes (MPLX: $35 and $35, respectively)	`AccruedIncomeTaxesCurrent`	$169.00M	USD	Point-in-time
Accrued taxes (MPLX: $35 and $35, respectively)	`AccruedIncomeTaxesCurrent`	$153.00M	USD	Point-in-time
Debt due within one year (MPLX: $1 and $1, respectively)	`DebtCurrent`	$624.00M	USD	Point-in-time
Debt due within one year (MPLX: $1 and $1, respectively)	`DebtCurrent`	$28.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$169.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$153.00M	USD	Point-in-time
Other current liabilities (MPLX: $130 and $81, respectively)	`OtherLiabilitiesCurrent`	$378.00M	USD	Point-in-time
Debt due within one year	`DebtCurrent`	$624.00M	USD	Point-in-time
Debt due within one year	`DebtCurrent`	$28.00M	USD	Point-in-time
Other current liabilities (MPLX: $130 and $81, respectively)	`OtherLiabilitiesCurrent`	$296.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$10.48B	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$378.00M	USD	Point-in-time
Other current liabilities	`OtherLiabilitiesCurrent`	$296.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$7.15B	USD	Point-in-time
Long-term debt (MPLX: $6,945 and $4,422, respectively)	`LongTermDebtAndCapitalLeaseObligations`	$12.32B	USD	Point-in-time
Total long-term debt due after one year	`LongTermDebtAndCapitalLeaseObligations`	$12.32B	USD	Point-in-time
Long-term debt (MPLX: $6,945 and $4,422, respectively)	`LongTermDebtAndCapitalLeaseObligations`	$10.54B	USD	Point-in-time
Total long-term debt due after one year	`LongTermDebtAndCapitalLeaseObligations`	$10.54B	USD	Point-in-time
Deferred income taxes (MPLX: $5 and $6, respectively)	`DeferredIncomeTaxLiabilitiesNet`	$2.65B	USD	Point-in-time
Deferred income taxes (MPLX: $5 and $6, respectively)	`DeferredIncomeTaxLiabilitiesNet`	$3.86B	USD	Point-in-time
Defined benefit postretirement plan obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.05B	USD	Point-in-time
Defined benefit postretirement plan obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.05B	USD	Point-in-time
Defined benefit postretirement plan obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.10B	USD	Point-in-time
Defined benefit postretirement plan obligations	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.10B	USD	Point-in-time
Deferred credits and other liabilities (MPLX: $230 and $189, respectively)	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$666.00M	USD	Point-in-time
Deferred credits and other liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$666.00M	USD	Point-in-time
Deferred credits and other liabilities (MPLX: $230 and $189, respectively)	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$604.00M	USD	Point-in-time
Deferred credits and other liabilities	`DeferredCreditsAndOtherLiabilitiesNoncurrent`	$604.00M	USD	Point-in-time
Total liabilities	`Liabilities`	$23.21B	USD	Point-in-time
Total liabilities	`Liabilities`	$27.22B	USD	Point-in-time
Commitments and contingencies (see Note 25)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies (see Note 25)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$1.00B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	$1.00B	USD	Point-in-time
Redeemable noncontrolling interest	`RedeemableNoncontrollingInterestEquityCarryingAmount`	-	USD	Point-in-time
Preferred stock, no shares issued and outstanding (par value 0.01 per share, 30 million shares authorized)	`PreferredStockValue`	-	USD	Point-in-time
Preferred stock, no shares issued and outstanding (par value 0.01 per share, 30 million shares authorized)	`PreferredStockValue`	-	USD	Point-in-time
Issued 734 million and 731 million shares (par value 0.01 per share, 1 billion shares authorized)	`CommonStockValue`	$7.00M	USD	Point-in-time
Issued 734 million and 731 million shares (par value 0.01 per share, 1 billion shares authorized)	`CommonStockValue`	$7.00M	USD	Point-in-time
Held in treasury, at cost 248 million and 203 million shares	`TreasuryStockValue`	$7.48B	USD	Point-in-time
Held in treasury, at cost 248 million and 203 million shares	`TreasuryStockValue`	$9.87B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$11.26B	USD	Point-in-time
Additional paid-in capital	`AdditionalPaidInCapitalCommonStock`	$11.06B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$12.86B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$10.21B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-231.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-318.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-234.00M	USD	Point-in-time
Total MPC stockholders equity	`StockholdersEquity`	$14.03B	USD	Point-in-time
Total MPC stockholders equity	`StockholdersEquity`	$13.56B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$6.65B	USD	Point-in-time
Noncontrolling interests	`MinorityInterest`	$6.79B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$19.68B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.20B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.39B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.83B	USD	Point-in-time
Total liabilities, redeemable noncontrolling interest and equity	`LiabilitiesAndStockholdersEquity`	$49.05B	USD	Point-in-time
Total liabilities, redeemable noncontrolling interest and equity	`LiabilitiesAndStockholdersEquity`	$44.41B	USD	Point-in-time

Income Statement 132 line items

Line Item	Tag	Value	Unit	Period
Sales and other operating revenues (including consumer excise taxes)	`RefiningAndMarketingRevenue`	$72.05B	USD	Annual
Sales and other operating revenues (including consumer excise taxes)	`RefiningAndMarketingRevenue`	$74.10B	USD	Annual
Sales and other operating revenues (including consumer excise taxes)	`RefiningAndMarketingRevenue`	$63.28B	USD	Annual
Sales to related parties	`RevenueFromRelatedParties`	$62.00M	USD	Annual
Sales to related parties	`RevenueFromRelatedParties`	$6.00M	USD	Annual
Sales to related parties	`RevenueFromRelatedParties`	$629.00M	USD	Annual
Income (loss) from equity method investments	`IncomeLossFromEquityMethodInvestments`	$-185.00M	USD	Annual
Income (loss) from equity method investments	`IncomeLossFromEquityMethodInvestments`	$88.00M	USD	Annual
Income (loss) from equity method investments	`IncomeLossFromEquityMethodInvestments`	$306.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$32.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$10.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$7.00M	USD	Annual
Other income	`OtherOperatingIncome`	$112.00M	USD	Annual
Other income	`OtherOperatingIncome`	$320.00M	USD	Annual
Other income	`OtherOperatingIncome`	$178.00M	USD	Annual
Total revenues and other income	`RevenuesAndOtherIncome`	$72.26B	USD	Annual
Total revenues and other income	`RevenuesAndOtherIncome`	$63.36B	USD	Annual
Total revenues and other income	`RevenuesAndOtherIncome`	$75.37B	USD	Annual
Cost of revenues (excludes items below)	`RefiningAndMarketingCosts`	$49.17B	USD	Annual
Cost of revenues (excludes items below)	`RefiningAndMarketingCosts`	$55.58B	USD	Annual
Cost of revenues (excludes items below)	`RefiningAndMarketingCosts`	$58.76B	USD	Annual
Purchases from related parties	`CostsAndExpensesRelatedParty`	$570.00M	USD	Annual
Purchases from related parties	`CostsAndExpensesRelatedParty`	$509.00M	USD	Annual
Purchases from related parties	`CostsAndExpensesRelatedParty`	$308.00M	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	$-370.00M	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	$370.00M	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	-	USD	Annual
Consumer excise taxes	`ExciseAndSalesTaxes`	$7.51B	USD	Annual
Consumer excise taxes	`ExciseAndSalesTaxes`	$7.76B	USD	Annual
Consumer excise taxes	`ExciseAndSalesTaxes`	$7.69B	USD	Annual
Impairment expense	`AssetImpairmentCharges`	$144.00M	USD	Annual
Impairment expense	`AssetImpairmentCharges`	-	USD	Annual
Impairment expense	`AssetImpairmentCharges`	$130.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$2.11B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$2.00B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.50B	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$1.60B	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$1.74B	USD	Annual
Selling, general and administrative expenses	`SellingGeneralAndAdministrativeExpense`	$1.58B	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$435.00M	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$391.00M	USD	Annual
Other taxes	`TaxesExcludingIncomeAndExciseTaxes`	$454.00M	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$67.57B	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$60.99B	USD	Annual
Total costs and expenses	`CostsAndExpenses`	$71.40B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$2.38B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$982.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$1.58B	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$553.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$3.97B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$75.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$292.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$1.31B	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$435.00M	USD	1 Quarter
Income from operations	`OperatingIncomeLoss`	$4.69B	USD	Annual
Income from operations	`OperatingIncomeLoss`	$1.12B	USD	1 Quarter
Net interest and other financial income (costs)	`InterestAndDebtExpense`	$625.00M	USD	Annual
Net interest and other financial income (costs)	`InterestAndDebtExpense`	$556.00M	USD	Annual
Net interest and other financial income (costs)	`InterestAndDebtExpense`	$318.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$4.37B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$3.34B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.82B	USD	Annual
(Benefit) provision for income taxes	`IncomeTaxExpenseBenefit`	$1.51B	USD	Annual
(Benefit) provision for income taxes	`IncomeTaxExpenseBenefit`	$609.00M	USD	Annual
(Benefit) provision for income taxes	`IncomeTaxExpenseBenefit`	$-460.00M	USD	Annual
Net income	`ProfitLoss`	$3.80B	USD	Annual
Net income	`ProfitLoss`	$574.00M	USD	1 Quarter
Net income	`ProfitLoss`	$2.12B	USD	1 Quarter
Net income	`ProfitLoss`	$219.00M	USD	1 Quarter
Net income	`ProfitLoss`	$783.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.21B	USD	Annual
Net income	`ProfitLoss`	$2.87B	USD	Annual
Net income	`ProfitLoss`	$101.00M	USD	1 Quarter
Net income	`ProfitLoss`	$-78.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.00B	USD	1 Quarter
Net income	`ProfitLoss`	$289.00M	USD	1 Quarter
Redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	$41.00M	USD	Annual
Redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	$65.00M	USD	Annual
Redeemable noncontrolling interest	`NetIncomeLossAttributableToRedeemableNoncontrollingInterest`	-	USD	Annual
Noncontrolling interests	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	$307.00M	USD	Annual
Noncontrolling interests	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	$-2.00M	USD	Annual
Noncontrolling interests	`NetIncomeLossAttributableToNonredeemableNoncontrollingInterest`	$16.00M	USD	Annual
Net income attributable to MPC	`NetIncomeLoss`	$2.02B	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$1.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$903.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$3.43B	USD	Annual
Net income attributable to MPC	`NetIncomeLoss`	$2.85B	USD	Annual
Net income attributable to MPC	`NetIncomeLoss`	$30.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$1.17B	USD	Annual
Net income attributable to MPC	`NetIncomeLoss`	$483.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$227.00M	USD	1 Quarter
Net income attributable to MPC	`NetIncomeLoss`	$801.00M	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$0.94	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$0.43	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$4.13	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$0.00	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$5.29	USD	Annual
Net income attributable to MPC per share	`EarningsPerShareBasic`	$0.28	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$0.06	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$2.22	USD	Annual
Net income attributable to MPC per share	`EarningsPerShareBasic`	$1.51	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$1.79	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareBasic`	$6.76	USD	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	538.00M	shares	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	528.00M	shares	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	507.00M	shares	Annual
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$4.09	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$2.21	USD	Annual
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$0.27	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$5.26	USD	Annual
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$0.00	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$0.43	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$1.51	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$0.93	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$0.06	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$1.77	USD	1 Quarter
Net income attributable to MPC per share	`EarningsPerShareDiluted`	$6.70	USD	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	512.00M	shares	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	530.00M	shares	Annual
Weighted average shares outstanding (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	542.00M	shares	Annual
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.36	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.36	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.40	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$1.36	USD	Annual
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.40	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$1.14	USD	Annual
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.36	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$1.52	USD	Annual
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.32	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.32	USD	1 Quarter
Dividends paid (in USD per share)	`CommonStockDividendsPerShareCashPaid`	$0.36	USD	1 Quarter

Cash Flow Statement 133 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$3.80B	USD	Annual
Net income	`ProfitLoss`	$574.00M	USD	1 Quarter
Net income	`ProfitLoss`	$2.12B	USD	1 Quarter
Net income	`ProfitLoss`	$219.00M	USD	1 Quarter
Net income	`ProfitLoss`	$783.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.21B	USD	Annual
Net income	`ProfitLoss`	$2.87B	USD	Annual
Net income	`ProfitLoss`	$101.00M	USD	1 Quarter
Net income	`ProfitLoss`	$-78.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.00B	USD	1 Quarter
Net income	`ProfitLoss`	$289.00M	USD	1 Quarter
Amortization of deferred financing costs and debt discount	`AmortizationOfFinancingCosts`	$16.00M	USD	Annual
Amortization of deferred financing costs and debt discount	`AmortizationOfFinancingCosts`	$64.00M	USD	Annual
Amortization of deferred financing costs and debt discount	`AmortizationOfFinancingCosts`	$61.00M	USD	Annual
Impairment expense	`AssetImpairmentCharges`	$144.00M	USD	Annual
Impairment expense	`AssetImpairmentCharges`	-	USD	Annual
Impairment expense	`AssetImpairmentCharges`	$130.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$2.11B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$2.00B	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$1.50B	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	$-370.00M	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	$370.00M	USD	Annual
Inventory market valuation adjustment	`InventoryLIFOReservePeriodCharge`	-	USD	Annual
Pension and other postretirement benefits, net	`PensionandOtherPostretirementBenefitNet`	$9.00M	USD	Annual
Pension and other postretirement benefits, net	`PensionandOtherPostretirementBenefitNet`	$80.00M	USD	Annual
Pension and other postretirement benefits, net	`PensionandOtherPostretirementBenefitNet`	$47.00M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$394.00M	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$-1.23B	USD	Annual
Deferred income taxes	`DeferredIncomeTaxExpenseBenefit`	$134.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$32.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$10.00M	USD	Annual
Net gain on disposal of assets	`GainLossOnDispositionOfAssets`	$7.00M	USD	Annual
(Income) loss from equity method investments	`IncomeLossFromEquityMethodInvestments`	$-185.00M	USD	Annual
(Income) loss from equity method investments	`IncomeLossFromEquityMethodInvestments`	$88.00M	USD	Annual
(Income) loss from equity method investments	`IncomeLossFromEquityMethodInvestments`	$306.00M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$113.00M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$388.00M	USD	Annual
Distributions from equity method investments	`EquityMethodInvestmentDividendsOrDistributions`	$291.00M	USD	Annual
Changes in the fair value of derivative instruments	`UnrealizedGainLossOnDerivatives`	$41.00M	USD	Annual
Changes in the fair value of derivative instruments	`UnrealizedGainLossOnDerivatives`	$-4.00M	USD	Annual
Changes in the fair value of derivative instruments	`UnrealizedGainLossOnDerivatives`	$-116.00M	USD	Annual
Current receivables	`IncreaseDecreaseInAccountsReceivable`	$674.00M	USD	Annual
Current receivables	`IncreaseDecreaseInAccountsReceivable`	$1.09B	USD	Annual
Current receivables	`IncreaseDecreaseInAccountsReceivable`	$-1.29B	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-106.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$-80.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$70.00M	USD	Annual
Current accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$985.00M	USD	Annual
Current accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$2.81B	USD	Annual
Current accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-2.40B	USD	Annual
All other, net	`OtherOperatingActivitiesCashFlowStatement`	$-202.00M	USD	Annual
All other, net	`OtherOperatingActivitiesCashFlowStatement`	$-87.00M	USD	Annual
All other, net	`OtherOperatingActivitiesCashFlowStatement`	$-35.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$4.07B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$4.00B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$6.61B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.73B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.00B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.89B	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$249.00M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$1.22B	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	-	USD	Annual
Disposal of assets	`ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets`	$79.00M	USD	Annual
Disposal of assets	`ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets`	$21.00M	USD	Annual
Disposal of assets	`ProceedsFromSalesOfBusinessAffiliateAndProductiveAssets`	$101.00M	USD	Annual
Investments acquisitions, loans and contributions	`PaymentsToFundLongtermLoansToRelatedParties`	$331.00M	USD	Annual
Investments acquisitions, loans and contributions	`PaymentsToFundLongtermLoansToRelatedParties`	$805.00M	USD	Annual
Investments acquisitions, loans and contributions	`PaymentsToFundLongtermLoansToRelatedParties`	$288.00M	USD	Annual
Investmentsredemptions, repayments and return of capital	`ProceedsFromCollectionOfLongtermLoansToRelatedParties`	$65.00M	USD	Annual
Investmentsredemptions, repayments and return of capital	`ProceedsFromCollectionOfLongtermLoansToRelatedParties`	$4.00M	USD	Annual
Investmentsredemptions, repayments and return of capital	`ProceedsFromCollectionOfLongtermLoansToRelatedParties`	$26.00M	USD	Annual
All other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-112.00M	USD	Annual
All other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-248.00M	USD	Annual
All other, net	`PaymentsForProceedsFromOtherInvestingActivities`	$-81.00M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.44B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.94B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.39B	USD	Annual
Commercial paper issued	`ProceedsFromIssuanceOfCommercialPaper`	-	USD	Annual
Commercial paper issued	`ProceedsFromIssuanceOfCommercialPaper`	$300.00M	USD	Annual
Commercial paper issued	`ProceedsFromIssuanceOfCommercialPaper`	$1.26B	USD	Annual
Commercial paper - repayments	`RepaymentsOfCommercialPaper`	$300.00M	USD	Annual
Commercial paper - repayments	`RepaymentsOfCommercialPaper`	$1.26B	USD	Annual
Commercial paper - repayments	`RepaymentsOfCommercialPaper`	-	USD	Annual
Long-term debt borrowings	`ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet`	$2.91B	USD	Annual
Long-term debt borrowings	`ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet`	$864.00M	USD	Annual
Long-term debt borrowings	`ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet`	$2.99B	USD	Annual
Long-term debt repayments	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$642.00M	USD	Annual
Long-term debt repayments	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$2.27B	USD	Annual
Long-term debt repayments	`RepaymentsOfLongTermDebtAndCapitalSecurities`	$2.23B	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$21.00M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$11.00M	USD	Annual
Debt issuance costs	`PaymentsOfDebtIssuanceCosts`	$33.00M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$11.00M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$33.00M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$46.00M	USD	Annual
Common stock repurchased	`PaymentsForRepurchaseOfCommonStock`	$197.00M	USD	Annual
Common stock repurchased	`PaymentsForRepurchaseOfCommonStock`	$965.00M	USD	Annual
Common stock repurchased	`PaymentsForRepurchaseOfCommonStock`	$2.37B	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$613.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$773.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$719.00M	USD	Annual
Issuance of MPLX LP common units	`ProceedsFromIssuanceOfCommonLimitedPartnersUnits`	-	USD	Annual
Issuance of MPLX LP common units	`ProceedsFromIssuanceOfCommonLimitedPartnersUnits`	$473.00M	USD	Annual
Issuance of MPLX LP common units	`ProceedsFromIssuanceOfCommonLimitedPartnersUnits`	$776.00M	USD	Annual
Issuance of MPLX LP redeemable preferred units	`ProceedsFromIssuanceOfPreferredLimitedPartnersUnits`	$984.00M	USD	Annual
Issuance of MPLX LP redeemable preferred units	`ProceedsFromIssuanceOfPreferredLimitedPartnersUnits`	-	USD	Annual
Issuance of MPLX LP redeemable preferred units	`ProceedsFromIssuanceOfPreferredLimitedPartnersUnits`	-	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$542.00M	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$694.00M	USD	Annual
Distributions to noncontrolling interests	`PaymentsToMinorityShareholders`	$40.00M	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	$129.00M	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	-	USD	Annual
Contributions from noncontrolling interests	`ProceedsFromMinorityShareholders`	$6.00M	USD	Annual
Contingent consideration payment	`PaymentForContingentConsiderationLiabilityFinancingActivities`	$164.00M	USD	Annual
Contingent consideration payment	`PaymentForContingentConsiderationLiabilityFinancingActivities`	$175.00M	USD	Annual
Contingent consideration payment	`PaymentForContingentConsiderationLiabilityFinancingActivities`	$89.00M	USD	Annual
All other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-47.00M	USD	Annual
All other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$15.00M	USD	Annual
All other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-33.00M	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.29B	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.09B	USD	Annual
Net cash used in financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-999.00M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$2.12B	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-240.00M	USD	Annual
Net increase (decrease) in cash and cash equivalents	`CashAndCashEquivalentsPeriodIncreaseDecrease`	$-367.00M	USD	Annual
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$1.49B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$3.01B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$1.13B	USD	Point-in-time
Cash and cash equivalents at beginning of period	`CashAndCashEquivalentsAtCarryingValue`	$887.00M	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$1.49B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$3.01B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$1.13B	USD	Point-in-time
Cash and cash equivalents at end of period	`CashAndCashEquivalentsAtCarryingValue`	$887.00M	USD	Point-in-time

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$19.68B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.20B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.39B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.83B	USD	Point-in-time
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$1.17B	USD	Annual
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$3.74B	USD	Annual
Net income (loss)	`NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest`	$2.87B	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$615.00M	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$720.00M	USD	Annual
Dividends declared	`DividendsCommonStockCash`	$774.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$629.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$517.00M	USD	Annual
Distributions to noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$40.00M	USD	Annual
Contributions from noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$6.00M	USD	Annual
Contributions from noncontrolling interests	`NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance`	$129.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-5.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$84.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$3.00M	USD	Annual
Shares repurchased	`TreasuryStockValueAcquiredCostMethod`	$197.00M	USD	Annual
Shares repurchased	`TreasuryStockValueAcquiredCostMethod`	$965.00M	USD	Annual
Shares repurchased	`TreasuryStockValueAcquiredCostMethod`	$2.37B	USD	Annual
Shares issued (returned) stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$22.00M	USD	Annual
Shares issued (returned) stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$31.00M	USD	Annual
Shares issued (returned) stock-based compensation	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$41.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$85.00M	USD	Annual
Stock-based compensation	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$54.00M	USD	Annual
Impact from equity transactions of MPLX LP	`ImpactofSubsidiaryEquityTransactions`	$444.00M	USD	Annual
Impact from equity transactions of MPLX LP	`ImpactofSubsidiaryEquityTransactions`	$658.00M	USD	Annual
Impact from equity transactions of MPLX LP	`ImpactofSubsidiaryEquityTransactions`	$6.92B	USD	Annual
Noncontrolling interest - MarkWest Merger	`NoncontrollingInterestIncreaseFromBusinessCombination`	$13.00M	USD	Annual
Other	`StockholdersEquityOther`	$1.00M	USD	Annual
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$19.68B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.20B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.39B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$20.83B	USD	Point-in-time

Comprehensive Income 38 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$3.80B	USD	Annual
Net income	`ProfitLoss`	$574.00M	USD	1 Quarter
Net income	`ProfitLoss`	$2.12B	USD	1 Quarter
Net income	`ProfitLoss`	$219.00M	USD	1 Quarter
Net income	`ProfitLoss`	$783.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.21B	USD	Annual
Net income	`ProfitLoss`	$2.87B	USD	Annual
Net income	`ProfitLoss`	$101.00M	USD	1 Quarter
Actuarial changes, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentTax`	$17.00M	USD	Annual
Net income	`ProfitLoss`	$-78.00M	USD	1 Quarter
Net income	`ProfitLoss`	$1.00B	USD	1 Quarter
Net income	`ProfitLoss`	$289.00M	USD	1 Quarter
Actuarial changes, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentTax`	$21.00M	USD	Annual
Actuarial changes, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentTax`	$69.00M	USD	Annual
Prior service costs, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentTax`	$24.00M	USD	Annual
Prior service costs, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentTax`	$16.00M	USD	Annual
Prior service costs, tax	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentTax`	$18.00M	USD	Annual
Actuarial changes, net of tax of $17, $69 and $21	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentNetofTax`	$34.00M	USD	Annual
Actuarial changes, net of tax of $17, $69 and $21	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentNetofTax`	$29.00M	USD	Annual
Actuarial changes, net of tax of $17, $69 and $21	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetUnamortizedGainLossAdjustmentNetofTax`	$115.00M	USD	Annual
Prior service costs, net of tax of ($16), ($18) and ($24)	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentNetofTax`	$39.00M	USD	Annual
Prior service costs, net of tax of ($16), ($18) and ($24)	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentNetofTax`	$26.00M	USD	Annual
Prior service costs, net of tax of ($16), ($18) and ($24)	`OtherComprehensiveIncomeLossPensionandOtherPostretirementBenefitPlansNetPriorServiceCostCreditAdjustmentNetofTax`	$31.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-5.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$84.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$3.00M	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$1.30B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$3.81B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.86B	USD	Annual
Redeemable noncontrolling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	-	USD	Annual
Redeemable noncontrolling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	$41.00M	USD	Annual
Redeemable noncontrolling interest	`ComprehensiveIncomeLossNetofTaxAttributabletoRedeemableNoncontrollingInterest`	$65.00M	USD	Annual
Noncontrolling interests	`ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest`	$307.00M	USD	Annual
Noncontrolling interests	`ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest`	$16.00M	USD	Annual
Noncontrolling interests	`ComprehensiveIncomeLossNetofTaxAttributabletoNonredeemableNoncontrollingInterest`	$-2.00M	USD	Annual
Comprehensive income attributable to MPC	`ComprehensiveIncomeNetOfTax`	$2.85B	USD	Annual
Comprehensive income attributable to MPC	`ComprehensiveIncomeNetOfTax`	$3.44B	USD	Annual
Comprehensive income attributable to MPC	`ComprehensiveIncomeNetOfTax`	$1.26B	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.