UNP


Line plots across dimensions of each concept
Line plots across concepts
Tables

Table of contents



us-gaap:CommonStockValue
us-gaap:StatementEquityComponents
us-gaap:CommonStockSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:InterestExpense

us-gaap:InterestPaidNet

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:OperatingExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherIncome

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:StatementBusinessSegments
us-gaap:StatementGeographical

us-gaap:Revenues

us-gaap:Assets

us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:AccountsReceivableNetCurrent

us-gaap:OtherAssetsCurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableCurrent

us-gaap:LiabilitiesCurrent

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:TaxesPayableCurrent

us-gaap:LongTermDebt

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:DeferredIncomeTaxLiabilitiesNet
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapital
us-gaap:AcceleratedShareRepurchasesDate
us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:TreasuryStockValue
us-gaap:AcceleratedShareRepurchasesDate

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:PaymentsOfDividends

us-gaap:PaymentsForRepurchaseOfCommonStock
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

unp:AccessorialRevenues

unp:AggregateGrantDateFairValueOfStockOptionsVested
us-gaap:LongtermDebtType
unp:AllowableDebtPerDebtToEarningsBeforeInterestTaxesDepreciationAndAmortizationCoverageRatioAsDefinedFacility

unp:DeferredIncomeTaxesAndUnrecognizedTaxBenefits

unp:EquipmentAndOtherRents
us-gaap:LossContingenciesByNatureOfContingency
unp:LossContingencyAccrualCarryingValueChangeInPriorYears

unp:NonoperatingEnvironmentalCostsAndOther

unp:PreviousBoardOfDirectorsRemainingDebtIssuance

unp:PurchasedServicesAndMaterial

unp:ReceivablesSecuritizationFacilityInterestExpenseCost
us-gaap:AwardType
unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearned
us-gaap:AwardType
unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedWeightedAverageGrantDateFairValue

unp:SubsidiaryRevenue

unp:TreasurySharesRepurchasedForEmployeePayrollTaxes

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfRetentionSharesAndUnits

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfStockOptions

us-gaap:AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses

us-gaap:AccrualForEnvironmentalLossContingenciesPayments1

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:DebtConversionConvertedInstrumentAmount1
us-gaap:DebtInstrument
us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:DebtConversionOriginalDebtAmount1
us-gaap:SubsequentEventType

us-gaap:DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction
us-gaap:SubsequentEventType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:Depreciation

us-gaap:DividendsCash
us-gaap:StatementEquityComponents

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FuelCosts

us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedTaxesPayable

us-gaap:IncreaseDecreaseInMaterialsAndSupplies

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:InterestAndOtherIncome

us-gaap:LaborAndRelatedExpense

us-gaap:LeaseCost
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualPayments
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualProvision

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherCostAndExpenseOperating

us-gaap:PaymentOfFinancingAndStockIssuanceCosts
us-gaap:SubsequentEventType

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtRestructuringCosts

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:StatementEquityComponents
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

us-gaap:RentalIncomeNonoperating

us-gaap:RepaymentsOfCommercialPaper

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations

us-gaap:RestrictedStockExpense

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:ShortTermLeaseCost
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation
us-gaap:AwardType
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockOptionPlanExpense

us-gaap:TreasuryStockAcquiredAverageCostPerShare
us-gaap:AcceleratedShareRepurchasesDate
us-gaap:StatementEquityComponents
us-gaap:TreasuryStockSharesAcquired
us-gaap:SubsequentEventType

us-gaap:TreasuryStockValueAcquiredCostMethod
us-gaap:AcceleratedShareRepurchasesDate
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType

us-gaap:VariableLeaseCost

unp:AccountsReceivableSupportingUndividedInvestorHeldInterest

unp:AccruedInterestDebtExchangeExistingNotes
us-gaap:SubsequentEventType
us-gaap:LongtermDebtType
unp:AllowableDebtPerDebtToNetWorthCoverageRatioAsDefinedFacility

unp:BoardOfDirectorsAuthorizedDebtIssuance

unp:BoardOfDirectorsRemainingDebtIssuance

unp:CarryingValueOfEquipmentServingAsCollateralForFinanceLeasesAndOtherTypesOfEquipmentObligations

unp:DeferredTaxAssetsOperatingLeaseLiabiities

unp:DeferredTaxAssetsTaxDeferredExpenseCompensationBenefitsPensionsPostretirementBenefits
us-gaap:RetirementPlanType
unp:DefinedBenefitPlanBenefitObligationUltimateHealthCareCostTrendRate
us-gaap:RetirementPlanType
unp:DefinedBenefitPlanHealthCareCostTrendRateAssumedEmployeesUnder65

unp:EquipmentRentsPayable

unp:FairValueOfTotalDebtInExcessOfCarryingValue

unp:LeaseLiability

unp:LeaseLiabilityPaymentsDue

unp:LeaseLiabilityPaymentsDueAfterYearFive

unp:LeaseLiabilityPaymentsDueNextTwelveMonths

unp:LeaseLiabilityPaymentsDueYearFive

unp:LeaseLiabilityPaymentsDueYearFour

unp:LeaseLiabilityPaymentsDueYearThree

unp:LeaseLiabilityPaymentsDueYearTwo

unp:LeaseLiabilityPaymentsRemainderOfFiscalYear

unp:LeaseLiabilityUndiscountedExcessAmount

unp:LeaseRightOfUseAsset

unp:NetworkRouteMiles
us-gaap:LongtermDebtType
unp:OutstandingDebtAsDefinedByFacility
us-gaap:LossContingenciesByNatureOfContingency
unp:RecordedLiabilityRelatedToAssertedClaims
us-gaap:LossContingenciesByNatureOfContingency
unp:RecordedLiabilityRelatedToUnassertedClaims

unp:RepurchaseOfCommonStockNotYetPaid

unp:RouteMilesOwned

unp:SecuredDebtUnderReceivablesSecuritizationFacility

unp:TotalTransferCapacityUndividedInterestsToInvestorsUnderReceivablesSecuritizationFacility
us-gaap:RetirementPlanType
unp:UnderfundedAccumulatedBenefitObligation

unp:UnrecognizedTaxBenefitsNotImpactingEffectiveTaxRate

unp:ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility
us-gaap:SubsequentEventType
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedEnvironmentalLossContingenciesCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableNoncurrent

us-gaap:CommercialPaper

us-gaap:DebtInstrumentCarryingAmount
us-gaap:LongtermDebtType
us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentFairValue
us-gaap:DebtInstrument
us-gaap:DebtInstrumentRepurchaseAmount
us-gaap:LongtermDebtType

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
us-gaap:StatementScenario
us-gaap:DefinedBenefitPlanExpectedAmortizationNextFiscalYear
us-gaap:StatementScenario, us-gaap:RetirementPlanType
us-gaap:StatementScenario
us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear
us-gaap:StatementScenario, us-gaap:RetirementPlanType
us-gaap:StatementScenario
us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear
us-gaap:StatementScenario, us-gaap:RetirementPlanType
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:Range, us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1
us-gaap:StatementScenario, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations
us-gaap:DefinedBenefitPlanByPlanAssetCategories
us-gaap:AwardType
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestments

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:GuaranteeObligationsCurrentCarryingValue
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:HeldToMaturitySecuritiesCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:HeldToMaturitySecuritiesRestricted

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:InterestPayableCurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LineOfCreditFacilityFairValueOfAmountOutstanding
us-gaap:LongtermDebtType, us-gaap:VariableRate
us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyAccrualAtCarryingValue

us-gaap:LossContingencyAccrualCarryingValueCurrent
us-gaap:LossContingenciesByNatureOfContingency
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesType
us-gaap:LossContingencyAccrualCarryingValueNoncurrent
us-gaap:Range, us-gaap:LossContingenciesByNatureOfContingency
us-gaap:LossContingencyEstimateOfPossibleLoss

us-gaap:MaterialsSuppliesAndOther

us-gaap:OperatingLeasesFutureMinimumPaymentsDue
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities
us-gaap:BalanceSheetLocation
us-gaap:RestrictedCashAndCashEquivalents

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
us-gaap:AwardType
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice
us-gaap:AwardType
us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Cash And Cash Equivalents At Carrying Value
Assets
Cash And Cash Equivalents At Carrying Value
Current Assets
Other Assets Current
NonCurrent Assets
Other Assets Noncurrent
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Operating Lease Liability
Current Liabilities
Operating Lease Liability Current
Noncurrent Liabilities
Operating Lease Liability Noncurrent
Stockholders Equity
Accumulated Other Comprehensive Income Loss Net Of Tax
CashFlow
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInOperatingActivities
Share Based Compensation
NetCashProvidedByUsedInInvestingActivities
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInFinancingActivities
Net Cash Provided By Used In Financing Activities
Shares
Weighted Average Number Of Shares Outstanding Basic
DividendsAndRepurchase
Dividends Cash
OperatingLeaseLiability
Operating Lease Liability Current
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▆▆▆▇▅▅▆▆▅▅▅▅▄▄▄▅▄▄▄▄▂▂▂▄▂▂▂▂▁2781.02781.02781.02781.02781.02781.02780.02780.02780.02780.02779.02779.02779.02779.02778.02778.02778.02779.02777.02777.02778.02778.02776.02776.02776.02776.02775.02775.02775.02776.02774.02774.02774.02774.02772.02772.02772.02774.02772.02772.02772.02772.02770.0NANANA2768.0NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock██▇▇▇▇▇▇▇▇▆▆▆▆▅▅▅▅▄▄▄▄▃▃▃▃▂▂▂▂▁1112.51112.51112.21112.21112.31112.31112.01112.01112.01112.01111.71111.81111.81111.81111.41111.41111.41111.41111.01111.01111.01111.01110.41110.41110.41110.51110.11110.11110.11110.11109.7NANANA1109.3NANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ▁█660.1669.2NA676.8679.2686.2NA701.9708.0719.5NA740.9763.7779.6NA797.6807.2814.8NA832.2840.1846.7NA865.8875.2882.8NA896.9905.0912.4NA928.4935.2941.0NA950.4954.4962.8NA976.2984.8988.2NA995.41013.01017.4NANANANA
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ▁█658.5667.6NA675.0677.7684.3NA699.3705.5716.8NA737.4760.5776.4NA794.5804.1811.5NA829.0837.4844.0NA862.9872.2879.3NA893.2901.5908.2NA923.4930.6935.6NA944.0947.6955.6NA968.4976.8979.2NA986.01003.61009.0NANANANA
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount █▁0.40.3NA0.51.00.7NA0.60.60.4NANA0.80.5NA1.91.91.6NA0.93.53.0NA0.90.90.6NA0.01.00.3NA0.00.60.4NA0.60.60.4NA6e-070.60.4NA0.00.80.5NANANANA
us-gaap:EarningsPerShareBasic ▃▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁2.732.012.052.021.672.152.032.222.231.942.132.161.981.699.291.51.451.321.41.361.171.161.311.511.381.311.621.531.431.21.281.2451.191.0251.1051.1051.0550.9051.0050.9350.8050.6550.790.790.710.510.5450.510.460.36
us-gaap:EarningsPerShareDiluted ▃▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▂▁▁▁▁▁▁▁▁▁▁▁2.722.02.052.011.672.152.022.222.221.932.122.151.981.689.251.51.451.321.391.361.171.161.311.51.381.31.611.531.431.191.2751.241.1851.0151.0951.0951.050.8950.9950.9250.7950.6450.780.780.70.5050.540.5050.460.36
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
 TTM Greenblatt ROC _ _█▆▆▆▄▆▆▇▇▆▇▇▆▅▇▆▆▅▆▆▄▄▅▇▆▆█▇▇▅▆▆▅▄▄▅▄▃▄▄▃▂▃▃▂▁▁2473.01993.02006.02031.01654.02143.02100.02234.02260.01960.02210.02269.02099.01939.02251.02012.02005.01793.01965.01960.01660.01687.01918.02208.01949.01977.02373.02330.02196.01854.01973.01962.01878.01633.01725.01786.01724.01510.01617.01578.01392.01137.01313.01401.01279.0988.0999.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▂▁▁▂▂▂▂▁▂▂▂▂▂▂▁▁▂▁▁▁▁▁▁▁▁▁▁1841.01340.01138.01384.01089.01501.01352.01548.01650.01428.01531.01629.01503.01329.07309.01243.01199.01092.01057.01144.0989.0966.01134.01296.01214.01143.0929.01376.01311.01104.01567.01156.01127.0974.0865.01088.0987.0871.0642.0891.0794.0645.0690.0777.0711.0522.0NANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments █▅▆▅▄▆▆▇▇▆▇▇▆▅▇▆▆▅▆▆▄▄▅▇▆▆█▇▇▅▆▆▅▄▅▅▅▄▄▄▃▂▃▃▂▁2316.01754.01793.01773.01496.01918.01878.02021.02058.01790.02016.02076.01938.01711.02092.01983.01869.01688.01831.01805.01564.01566.01782.02081.01938.01855.02298.02206.02080.01759.01883.01852.01768.01545.01640.01677.01610.01391.01530.01453.01270.01011.01180.01273.01146.0834.0NANANANA
us-gaap:IncomeTaxExpenseBenefit █▇▇▇▇████▇██▇▇▁██████████████████████████▇▇██▇518.0413.0413.0410.0364.0444.0475.0466.0488.0399.0462.0483.0429.0401.0-5186.0789.0701.0616.0687.0674.0585.0587.0665.0781.0734.0704.0867.0836.0789.0671.0709.0701.0662.0588.0604.0635.0608.0528.0566.0549.0485.0372.0405.0495.0435.0318.0NANANANA
us-gaap:IncomeTaxesPaidNet ▇▅▆▇▅▅▆▆▇▅▆▆▆▅▆▆▇▅▆▆▇▄▆▆▇▅▆▆█▅▄▄▃▅▄▄▃▅▃▆▄▅▁▇▄▅711.01.0289.0767.0147.011.0278.0387.0716.01.0360.0371.0476.0-2.0555.0580.0974.03.0470.0417.0742.0-282.0651.0587.0871.047.0585.0678.01375.0-146.0-491.0-450.0-676.0-39.0-455.0-331.0-868.0102.0-899.0409.0-282.0147.0-1732.01139.0-479.0136.0NANANANA
us-gaap:InterestExpense ▇█▇██▇▇▇▆▆▆▆▄▃▄▃▃▃▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▂▂▂▂▂▂▂▂282.0290.0279.0295.0289.0278.0278.0266.0259.0247.0240.0241.0203.0186.0188.0180.0179.0172.0174.0184.0173.0167.0164.0157.0153.0148.0146.0144.0138.0133.0127.0138.0133.0128.0128.0137.0135.0135.0141.0142.0148.0141.0142.0153.0152.0155.0NANANANA
us-gaap:InterestPaidNet ▅▆▅▆▅▆▅▆▅▆▅▅▅▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▅█▄▄▄▁▇▄▄▁▇▄▄141.0394.0139.0422.0140.0349.0178.0351.0148.0356.0151.0216.0131.0230.0134.0196.0133.0203.0112.0191.0134.0215.0101.0339.0-40.0192.094.0229.053.0178.076.0201.072.0179.01035.0-207.0-69.0-198.0-1067.0810.0-113.0-202.0-1142.0844.0-98.0-218.0NANANANA
us-gaap:NetIncomeLoss ▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁1798.01341.01380.01363.01132.01474.01403.01555.01570.01391.01554.01593.01509.01310.07278.01194.01168.01072.01144.01131.0979.0979.01117.01300.01204.01151.01431.01370.01291.01088.01174.01151.01106.0957.01036.01042.01002.0863.0964.0904.0785.0639.0775.0778.0711.0516.0549.0514.0465.0362.0
us-gaap:OperatingExpenses ▃▃▄▃▁▄▄▅▅▆▆▇▆▆▄▅▅▅▄▄▄▄▅▅▆▇████▇▇▇▇▆▆▆▇▆▆▆▅▄▃▃▃3031.03008.03135.02888.02590.03086.03112.03282.03336.03424.03547.03659.03573.03536.03199.03396.03245.03339.03203.03214.03110.03142.03290.03354.03480.03637.03780.03852.03819.03784.03657.03611.03592.03657.03525.03557.03497.03602.03491.03523.03466.03353.03097.03007.02903.02977.0NANANANA
us-gaap:OperatingIncomeLoss █▆▆▆▅▇▇▇▇▆▇▇▇▆▇▆▆▅▆▆▅▅▆▇▆▆█▇▇▆▆▆▆▅▅▅▅▄▅▅▄▃▃▄▃▂▂▂▁▁2473.01993.02006.02031.01654.02143.02100.02234.02260.01960.02210.02269.02099.01939.02251.02012.02005.01793.01965.01960.01660.01687.01918.02208.01949.01977.02373.02330.02196.01854.01973.01962.01878.01633.01725.01786.01724.01510.01617.01578.01392.01137.01313.01401.01279.0988.0999.0961.0748.0671.0
us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax ▆▃█▅▁▅▆▄▅▇▃▆▃19.0-26.047.03.0-61.05.010.0-18.0-2.027.0-29.017.0-24.0NA-6.09.016.09.0-23.0-1.0-3.0-21.04.0-21.0-6.0-20.0-12.0-5.09.0-4.04.0-12.04.03.04.08.0-15.015.0-22.0-12.09.0NANANANANANANANANA
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▅▅▃▅▅▅▅▅▆▅▅▅▅▅▅▅▅▅▄▅▅▅▅▅▅▅▁▅▅▅█▅▅▅▄▅▅▅▂▅▅43.0-1.0-242.021.0-43.027.0-51.0-7.080.037.0-23.036.0-6.019.031.049.031.020.0-87.013.010.0-13.017.0-4.010.0-8.0-502.06.020.016.0393.05.021.017.0-171.046.0-15.08.0-322.0-13.09.0NANANANANANANANANA
us-gaap:OtherIncome ▄▂▁▄▇▆█▃▆▆▄▄▆▃▃▂▂▅16.014.013.016.019.018.020.015.018.018.016.016.018.015.015.014.014.017.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▇▄▅▄▇▄▅▄▅▅▄▄▄▁▄█▄▅▄▄▅▄▄▄█▃▅▃▃▄▄▄▃▄▄▄▃▃▄▃▃▃▃▃▃▃125.051.066.037.0131.053.056.053.057.077.046.048.042.0-42.029.0151.043.067.040.029.077.046.028.030.0142.026.071.020.022.038.037.028.023.040.043.028.021.016.054.017.026.015.09.025.019.01.0NANANANA
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▅▄▅▄▃▅▆▅▆▅▇▆▆▆▆▆▆▅▆▆▅▅▆▆▆▇███▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▃▃▂▂▁▁5132.04649.05141.04596.03972.04880.05212.05146.05236.05010.05757.05558.05317.05475.05450.05408.05250.05132.05168.05174.04770.04829.05208.05562.05429.05614.06153.06182.06015.05638.05630.05573.05470.05290.05250.05343.05221.05112.05108.05101.04858.04490.04410.04408.04182.03965.03754.03671.03303.03415.0
us-gaap:Revenues ▆▅▅▅▃▆▆▆▇▆▇▇▇▆▆▆▆▅▆▆▅▅▆▆▆▇███▇▇▇▆▆▆▆▆▅▅▅▅▄▄▄▃▃▂▂▁▁5504.05001.05141.04919.04244.05229.05212.05516.05596.05384.05757.05928.05672.05475.05450.05408.05250.05132.05168.05174.04770.04829.05208.05562.05429.05614.06153.06182.06015.05638.05630.05573.05470.05290.05250.05343.05221.05112.05108.05101.04858.04490.04410.04408.04182.03965.03754.03671.03303.03415.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:Assets ▇▇███▇▇▇▇▇▆▇▆▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁62073.061793.062398.063714.063555.062216.061673.061978.061708.061319.059147.059312.058689.057789.057806.057397.056478.055900.055718.056305.055690.055772.054600.053763.054177.053145.052716.052568.051562.050898.049731.048958.049026.048561.047153.047070.046374.045336.045096.045066.044029.043587.043088.0NANANA42184.0NANANA
us-gaap:Liabilities █▇▇███▇▇▇▇▅▅▅▄▃▅▅▄▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁47770.045539.045440.046515.047103.046225.043545.043962.043537.043577.038724.038667.038780.033400.032950.038246.036863.036177.035786.036021.035268.035297.033898.033164.033187.032088.031527.031015.030122.029626.028506.028184.028502.028417.027276.027521.027287.026581.026518.026501.025723.025541.025325.0NANANA25383.0NANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇███▇▇▇▇▇▆▇▆▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▂▂▂▂▂▂▁▁▁62073.061793.062398.063714.063555.062216.061673.061978.061708.061319.059147.059312.058689.057789.057806.057397.056478.055900.055718.056305.055690.055772.054600.053763.054177.053145.052716.052568.051562.050898.049731.048958.049026.048561.047153.047070.046374.045336.045096.045066.044029.043587.043088.0NANANA42184.0NANANA
us-gaap:StockholdersEquity ▁▂▃▃▂▂▄▃▄▃▅▅▅██▄▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃14303.016254.016958.017199.016452.015991.018128.018016.018171.017742.020423.020645.019909.024389.024856.019151.019615.019723.019932.020284.020422.020475.020702.020599.020990.021057.021189.021553.021440.021272.021225.020774.020524.020144.019877.019549.019087.018755.018578.018565.018306.018046.017763.0NANANA16801.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AssetsCurrent ▂▂▄██▃▁▄▄▃▄▇▅▃▃▅▃▂▂▆▆█▄▃▇▅▆▇▅▆▃▄▆▆▂▃▃▂▂▄▂▂▁3764.03719.04214.05130.05083.03804.03459.04073.04086.03953.04163.04816.04494.03897.04006.04449.03869.03588.03596.04602.04566.05083.04130.03942.04983.04479.04679.04780.04503.04679.03990.04064.04543.04646.03614.03946.03956.03565.03727.04214.03699.03677.03432.0NANANA3680.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▂▅██▂▁▃▂▂▃▅▄▂▃▅▃▂▃▅▅█▃▂▆▄▄▅▄▅▃▃▅▅▂▂▂▂▂▄▂▃▂▃▃▄▅1115.01183.01799.02601.02706.01130.0831.01250.01049.01059.01273.01810.01604.01048.01275.01847.01286.01049.01277.01909.01830.02673.01391.01078.02041.01587.01586.01887.01537.01857.01432.01366.01845.01917.01063.01130.01201.0995.01217.01647.01055.01248.01086.01358.01317.01753.01850.0NANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents ▂▂▅██▂▁▃▂▂▃▅▄▂▃1159.01198.01818.02618.02724.01207.0856.01303.01071.01098.01328.01810.01604.01048.01275.0NANANA1277.0NANANA1391.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:AccountsReceivableNetCurrent ▆▆▅▅▃▆▆▆█▆▇█▆▅▄▄▃▂▂▃▃▃▃▅▅▅▆▆▆▅▄▄▄▅▃▅▅▃▃▄▄▂▁1666.01610.01505.01565.01388.01669.01595.01650.01809.01672.01755.01792.01634.01571.01493.01428.01357.01279.01258.01351.01373.01355.01356.01508.01513.01564.01611.01635.01666.01542.01414.01469.01468.01512.01331.01583.01497.01327.01401.01424.01427.01275.01184.0NANANA666.0NANANA
us-gaap:OtherAssetsCurrent ▂▁▁▂▂▂▂▃▄▄▃▃▄▄▄▃▄▄▂▃▄▃█▄▅▃▆▃▃▃▂▃▃▃▃▂▃▂▁▂▂▂▄249.0207.0212.0255.0261.0253.0222.0342.0393.0382.0333.0335.0394.0380.0399.0342.0410.0410.0284.0322.0373.0339.0647.0397.0432.0334.0493.0304.0322.0316.0223.0316.0334.0311.0297.0260.0288.0247.0189.0231.0272.0265.0367.0NANANA350.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:PropertyPlantAndEquipmentGross ██████▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▅▅▄▄▄▃▃▃▃▃▂▂▂▂▁▁▁75982.075620.075420.075387.075017.074658.074246.074129.073531.073059.072805.072167.071746.071171.070813.069971.069878.069381.069058.068336.067650.067014.066564.065588.064896.064146.063214.062357.061442.060519.059812.059103.058483.057750.057279.056727.055807.055011.054444.053710.0NANA51908.0NANANANANANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment ██▇▇▇▇▇▇▇▆▆▆▆▆▆▅▅▅▅▅▅▄▄▄▄▄▃▃▃▃▃▂▂▂▂▂▂▁▁▁21834.021558.021259.021012.020747.020537.020330.020641.020416.020203.020126.019957.019799.019475.019208.018935.019064.018831.018669.018397.018189.017943.017698.017439.017384.017218.016942.016804.016541.016330.016063.015792.015572.015374.015282.015110.014870.014702.014510.014285.0NANA13655.0NANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ████████▇▇▇▇▇▇▇▇▆▆▆▆▆▆▆▅▅▅▄▄▄▄▃▃▃▃▃▂▂▂▂▂▁▁▁54148.054062.054161.054375.054270.054121.053916.053488.053115.052856.052679.052210.051947.051696.051605.051036.050814.050550.050389.049939.049461.049071.048866.048149.047512.046928.046272.045553.044901.044189.043749.043311.042911.042376.041997.041617.040937.040309.039934.039425.038908.038512.038253.0NANANA37202.0NANANA
us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures █▇▇▇▇▇▇▆▆▆▆▆▅▅▅▄▃▃▃▃▃▃▃▂▂▂▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁2277.02167.02164.02071.02042.02078.02050.02003.01989.01951.01912.01887.01856.01810.01809.01566.01504.01480.01457.01446.01408.01404.01410.01373.01375.01375.01390.01384.01369.01344.01321.01282.01272.01240.01259.01235.01211.01210.01175.01171.01176.01157.01137.0NANANA1036.0NANANA
us-gaap:OperatingLeaseRightOfUseAsset ▂▁▁▂▂▃▄▅▇█1635.01581.01610.01642.01700.01773.01812.01931.02076.02146.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ▂▂▂▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▁▁▂▂▃▃█▇▆▆▂▂▂▂▂▂▂▂▂▂▂▂249.0264.0249.0496.0460.0440.0436.0483.0442.0413.0393.0399.0392.0386.0386.0346.0291.0282.0276.0318.0255.0214.0194.0299.0307.0363.0375.0851.0789.0686.0671.0301.0300.0299.0283.0272.0270.0252.0260.0256.0246.0241.0266.0NANANA266.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▆▆▅▃▆▅▅▅▇█▅▄▃▃▅▃▃▅▃▃▂▃▁▄▄▄▆▇▆█▅▄▅▄▃▅▅▅▅▄▄▂▂3247.03306.03104.02861.03289.03130.03094.03166.03368.03559.03160.03061.02916.02855.03139.02928.02875.03125.02882.02850.02686.02885.02612.02987.02982.02974.03303.03373.03319.03556.03086.02964.03092.03058.02923.03161.03137.03133.03108.03082.02974.02767.02713.0NANANA2470.0NANANA
us-gaap:AccountsPayableCurrent ▁▂▁▂▁▃▄▃▄▄▆▆▅▄█▅▅▄▇▅▄▄▃▇█▆▆▆▇▆▄▅▆▅▅▆▇▅▅▄▅▃▂612.0634.0612.0649.0595.0711.0749.0711.0746.0794.0872.0905.0844.0768.01013.0838.0828.0789.0955.0819.0787.0791.0743.0934.01005.0882.0877.0870.0924.0888.0803.0831.0908.0815.0825.0886.0955.0844.0819.0793.0816.0729.0677.0NANANA612.0NANANA
us-gaap:LiabilitiesCurrent ▅▆▄▆▇▅▅▅█▇▅▅▅▆▄▃▂▃▃▂▁▂▂▂▂▂▃▃▃▄▃▃▃▃▁▃▃▃▂▃▂▁▁4357.04871.04173.04841.05279.04641.04351.04587.05665.05262.04626.04529.04372.04746.03939.03831.03406.03848.03640.03257.03095.03287.03206.03508.03413.03390.03765.03833.03777.04188.03791.03655.03825.03610.03119.03874.03917.03902.03317.03724.03153.02947.02952.0NANANA2682.0NANANA
us-gaap:OperatingLeaseLiabilityCurrent ▁▁▂▂▂▃▄▅█297.0294.0321.0308.0319.0326.0362.0377.0442.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent ▆▅▅▃▁▂▄▆▄▃▅▅▅▅██▇▅▅▅▄▂▄▇▅▄▇▇▆▄▅▄▅▃▄▄▃▃▆▆▄▂▄614.0576.0592.0524.0453.0487.0538.0616.0549.0509.0575.0578.0570.0591.0671.0656.0626.0577.0570.0592.0551.0486.0550.0637.0593.0554.0640.0652.0609.0554.0579.0549.0574.0520.0556.0562.0500.0502.0624.0601.0551.0473.0548.0NANANA480.0NANANA
us-gaap:TaxesPayableCurrent ▆█▄▃█▆▃▄▄█▅▄▄▄▃▃▃▇▂▄▂▆▂▃▃▅▂▃▃▇▃▂▂▄▁▄▃▅▃▄▂▂▁769.0974.0635.0550.0970.0754.0496.0580.0644.0934.0694.0644.0579.0641.0547.0561.0523.0901.0472.0593.0470.0764.0434.0562.0476.0675.0412.0562.0509.0877.0491.0415.0413.0585.0368.0613.0513.0704.0482.0567.0418.0464.0337.0NANANA224.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:LongTermDebt NANA26729.0NANANA25200.0NANANA22391.0NANANA16944.0NANANA15007.0NANANA14201.0NANANA11480.0NANANA9577.0NANANA8997.0NANANA8906.0NANANA9242.0NANANA9848.0NANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations █▇▇▇██▇▇▆▆▆▆▆▄▄▄▄▃▃▄▃▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁27702.025117.025660.026080.026439.026365.023943.024314.022955.023409.020925.020943.021357.015697.016144.015930.015229.014310.014249.015205.014777.014791.013607.012798.012908.011884.011018.011045.010385.09544.08872.08764.09076.09309.08801.08773.08636.08066.08697.08765.08759.09016.09003.0NANANA9636.0NANANA
us-gaap:DeferredIncomeTaxLiabilitiesNet █▇▅▇▄▃▁12389.012307.012247.012328.012171.012088.011992.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:OtherPostretirementBenefitPlansDefinedBenefitNANA172.0NANANA185.0NANANA276.0NANANA307.0NANANA310.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:PensionPlansDefinedBenefitNANA620.0NANANA493.0NANANA438.0NANANA474.0NANANA405.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▆▆▆▅▄▃▃▂▂▃▄▄▄▄▄▅▄▃▄▂▃▃▃▃▅▆▆▂▁▁▁▅▇██▅▆▆▇▂▃▃▃2066.02073.02077.01973.01894.01792.01788.01775.01731.01835.01871.01925.01942.01907.01931.01961.01899.01862.01901.01785.01803.01815.01844.01796.01959.02040.02064.01716.01659.01665.01680.02026.02124.02210.02248.02016.02088.02108.02136.01722.01795.01790.01813.0NANANA2021.0NANANA
us-gaap:OperatingLeaseLiabilityNoncurrent ▂▁▃▃▃▃▅▆▇█1256.01171.01283.01293.01320.01339.01471.01542.01612.01663.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA273.0304.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA229.0269.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA220.0226.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA216.0218.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA567.0784.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:StockholdersEquity ▁▂▃▃▂▂▄▃▄▃▅▅▅██▄▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃14303.016254.016958.017199.016452.015991.018128.018016.018171.017742.020423.020645.019909.024389.024856.019151.019615.019723.019932.020284.020422.020475.020702.020599.020990.021057.021189.021553.021440.021272.021225.020774.020524.020144.019877.019549.019087.018755.018578.018565.018306.018046.017763.0NANANA16801.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▁▂▃▃▂▂▄▃▄▃▅▅▅██▄▅▅▅▅▅▅▅▅▅▅▆▆▆▆▆▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃14303.016254.016958.017199.016452.015991.018128.018016.018171.017742.020423.020645.019909.024389.024856.019151.019615.019723.019932.020284.020422.020475.020702.020599.020990.021057.021189.021553.021440.021272.021225.020774.020524.020144.019877.019549.019087.018755.018578.018565.018306.018046.017763.017436.017323.017213.016801.0NANANA
us-gaap:CommonStockValue ██████▇▇▇▇▇▇▇▇▆▆▆▇▅▅▆▆▅▅▅▅▄▄▄▅▄▄▄▄▂▂▂▄▂▂▂▂▁2781.02781.02781.02781.02781.02781.02780.02780.02780.02780.02779.02779.02779.02779.02778.02778.02778.02779.02777.02777.02778.02778.02776.02776.02776.02776.02775.02775.02775.02776.02774.02774.02774.02774.02772.02772.02772.02774.02772.02772.02772.02772.02770.0NANANA2768.0NANANA
us-gaap:AdditionalPaidInCapital ▆███▃▃▆▆▂▂▅▁▁▅▅▅▅▅▅▅▅▅▅▅▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂4499.04874.04864.04849.04135.04112.04523.04505.03954.03929.04449.03803.03778.04473.04476.04454.04431.04406.04421.04406.04393.04381.04417.04400.04377.04351.04321.04299.04269.04233.04210.04189.04162.04134.04113.04097.04077.04056.04031.04020.03999.03988.03985.0NANANA3968.0NANANA
 us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:AcceleratedShareRepurchasesDate unp:AcceleratedShareRepurchaseAgreement400.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:RetainedEarningsAccumulatedDeficit ████▇▇▇▇▇▇▆▆▆▆▆▄▄▄▄▄▄▄▄▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁▁53116.052019.051326.050600.049892.049419.048605.047875.046997.046049.045284.044313.043311.042359.041317.034561.033847.033167.032587.031940.031266.030747.030233.029583.028759.028034.027367.026380.025456.025962.025288.024476.023690.022905.022271.021560.020802.020084.019508.018833.018159.017607.017154.0NANANA15027.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▁▁▃▃▃▃▃▃▃▂▃▂▂▅▄▄▄▄▄▄▄▄▄▄▄▄████▅▅▄▄▆▅▅▅████-1551.0-1594.0-1593.0-1351.0-1372.0-1329.0-1356.0-1305.0-1298.0-1378.0-1415.0-1392.0-1428.0-1422.0-1141.0-1172.0-1221.0-1252.0-1272.0-1185.0-1198.0-1208.0-1195.0-1212.0-1208.0-1218.0-1210.0-708.0-714.0-734.0-750.0-1143.0-1148.0-1169.0-1186.0-1015.0-1061.0-1046.0-1054.0-732.0-719.0-728.0-734.0NANANA-654.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest▁▁▁▄▄▃▃▄▄▃▃▃▃▂▄▄▄▄▃▄▄▄▄▄▃▃▃████-1332.0-1356.0-1381.0-1092.0-1110.0-1128.0-1150.0-1089.0-1100.0-1182.0-1192.0-1198.0-1217.0-1235.0-1029.0-1066.0-1106.0-1121.0-1132.0-1068.0-1082.0-1095.0-1103.0-1116.0-1133.0-1149.0-1161.0-671.0-682.0-693.0-713.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest▂▂▃▁▁▃▃▂▃▃▂▃▃▃▆▆▅▅▅▅▅▆▆▆▇▇▇████-219.0-238.0-212.0-259.0-262.0-201.0-206.0-216.0-198.0-196.0-223.0-194.0-211.0-187.0-112.0-106.0-115.0-131.0-140.0-117.0-116.0-113.0-92.0-96.0-75.0-69.0-49.0-37.0-32.0-41.0-37.0NANANANANANANANANANANANANANANANANANANA
us-gaap:TreasuryStockValue ██▇▇▇▇▇▆▆▆▆▅▅▄▄▄▄▄▄▃▃▃▃▃▃▃▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁44542.041826.040420.039680.038984.038992.036424.035839.034262.033638.030674.028858.028531.023800.022574.021470.020220.019377.018581.017654.016817.016223.015529.014948.013714.012886.012064.011193.010346.09577.08910.08135.07567.07113.06707.06479.06117.05726.05293.04942.04519.04207.04027.0NANANA2924.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄█▁▆▅▇▇▄▄▆▆2261.01958.02547.01601.02237.02155.02345.02364.01941.01959.02312.02341.0NANANANANANANANANANANANANANANANANANANANA1694.01524.01795.01590.01372.01404.01539.01694.01346.01294.01385.01025.01039.0656.0NANANANA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇█▇▆▆▄▂▂▃▄▁▃-566.0-505.0-595.0-664.0-610.0-807.0-928.0-897.0-826.0-784.0-977.0-809.0NANANANANANANANANANANANANANANANANANANANA-939.0-800.0-767.0-984.0-1052.0-830.0-878.0-875.0-709.0-657.0-815.0-605.0-573.0-495.0NANANANA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▁▆█▆▃▅▅▅▃▅-1734.0-2073.0-2752.0-1043.0-110.0-997.0-1864.0-1235.0-1142.0-1405.0-1817.0-1326.0NANANANANANANANANANANANANANANANANANANANA-827.0130.0-1095.0-677.0-114.0-796.0-1091.0-227.0-830.0-475.0-842.0-379.0-902.0-258.0NANANANA
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▃▂▁▃█▄▂▄▃▃▂▄▅▃-39.0-620.0-800.0-106.01517.0351.0-447.0232.0-27.0-230.0-482.0206.0556.0-227.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:IncreaseDecreaseInAccountsReceivable ▄▄▃▅▁▄▃▂▅▃▃▅▄▄▄▄▄▄▃▃▄▃▂▃▃▃▃▃▄▄▃▃▃▅▁▆▃▃▃▃▅▄▂▄▄█56.0105.0-60.0177.0-281.074.0-55.0-159.0137.0-83.0-37.0158.063.078.065.071.078.021.0-93.0-22.018.0-1.0-152.0-5.0-51.0-47.0-24.0-31.0124.0128.0-55.01.0-44.0181.0-252.0278.0-22.0-74.0-23.0-3.0152.091.0-113.047.032.0552.0NANANANA
us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet ▄▆▁▃▄▅▅▄▄▅▅▄▅▁█▅▄▄▅▅▅▅▃▆▄▄▇▄▄▅▅▅▅▄▅▅▄▄▆▅▆▄▇▅▆▄-3.0131.0-371.0-128.0-55.064.04.0-61.0-94.053.021.0-65.036.0-339.0367.034.0-25.0-94.051.075.053.049.0-149.0128.0-63.0-32.0288.0-46.0-14.057.076.067.087.0-4.088.097.0-8.0-17.0155.049.0123.0-72.0293.00.0201.0-36.0NANANANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▆▄█▁▆▅▇▇▄▄▆▆2261.01958.02547.01601.02237.02155.02345.02364.01941.01959.02312.02341.0NANANANANANANANANANANANANANANANANANANANA1694.01524.01795.01590.01372.01404.01539.01694.01346.01294.01385.01025.01039.0656.0NANANANA
us-gaap:NetIncomeLoss ▂▂▂▂▂▂▂▂▂▂▂▂▂▂█▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁1798.01341.01380.01363.01132.01474.01403.01555.01570.01391.01554.01593.01509.01310.07278.01194.01168.01072.01144.01131.0979.0979.01117.01300.01204.01151.01431.01370.01291.01088.01174.01151.01106.0957.01036.01042.01002.0863.0964.0904.0785.0639.0775.0778.0711.0516.0549.0514.0465.0362.0
us-gaap:ShareBasedCompensation ▃▂▁▁▂▃▂▄▄▅▂▅▅▄▂▆▅▅▃▂▄▁▂▄▅▅▃▅▅█▃▅▅▄▂▄▄▄▁▃▃▃22.020.016.017.018.022.018.024.024.027.019.026.026.025.020.030.027.026.021.020.024.017.019.025.026.028.021.028.028.035.021.026.026.025.019.025.024.025.017.022.021.022.0NANANA17.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▇█▇▆▆▄▂▂▃▄▁▃-566.0-505.0-595.0-664.0-610.0-807.0-928.0-897.0-826.0-784.0-977.0-809.0NANANANANANANANANANANANANANANANANANANANA-939.0-800.0-767.0-984.0-1052.0-830.0-878.0-875.0-709.0-657.0-815.0-605.0-573.0-495.0NANANANA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▃▂▂▃▄▄▅▅▄▃▅▄▃▅▄▄▄▄▅▅▅▃█▆▆▆▆▇▇▄▄▅▅▄▄▆▅▄▅▄▃▂▄▂▂▁654.0536.0633.0695.0792.0807.0958.0935.0808.0752.01009.0814.0704.0910.0859.0790.0778.0811.0901.01014.0903.0687.01327.01116.01106.01101.01120.01158.01175.0893.0861.0905.0948.0782.0862.01060.01012.0804.0958.0891.0725.0602.0796.0630.0595.0461.0NANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▁▆█▆▃▅▅▅▃▅-1734.0-2073.0-2752.0-1043.0-110.0-997.0-1864.0-1235.0-1142.0-1405.0-1817.0-1326.0NANANANANANANANANANANANANANANANANANANANA-827.0130.0-1095.0-677.0-114.0-796.0-1091.0-227.0-830.0-475.0-842.0-379.0-902.0-258.0NANANANA
us-gaap:ProceedsFromIssuanceOfLongTermDebt NANA0.00.01008.02996.00.0994.00.02992.0-100.0100.05186.01706.0450.01099.0986.0200.0100.0455.0150.01278.01085.00.01097.01146.00.0693.0900.0995.0499.00.00.0944.00.00.0695.00.00.0486.00.00.0NANANA400.0NANANANA
us-gaap:PaymentsOfDividends ▆▅▅▅▅▆▆▆▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄█▃▃▃▃▃▂▂▂▂▂▂▂▁▁▁▁700.0650.0652.0655.0659.0660.0673.0677.0622.0626.0583.0591.0557.0568.0522.0480.0488.0492.0497.0457.0460.0465.0467.0476.0479.0922.0446.0410.0413.0363.0365.0322.0323.0323.0286.0285.0286.0289.0230.0233.0188.0186.0NANANA135.0NANANANA
us-gaap:PaymentsForRepurchaseOfCommonStock ▄▃▂▂▁▄▂▃▂▅▃▁█▂▂▃▂▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▁▁2738.01347.0749.0400.00.02556.0642.01533.0642.02987.01201.0331.05527.01166.01131.01271.0852.0759.01005.0848.0546.0706.0670.01190.0813.0792.0913.0862.0806.0644.0786.0599.0459.0374.0295.0NANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27812781278127812781278127802780278027802779277927792779277827782778277927772777277827782776277627762776277527752775277627742774277427742772277227722774277227722772277227702768
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.54.54.54.44.44.54.54.54.54.54.74.74.74.84.84.84.95.05.04.95.05.05.15.25.15.25.35.35.45.55.65.75.75.75.95.96.06.16.16.26.36.46.46.6

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents

us-gaap:CommonStockSharesOutstanding

us-gaap:CommonStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value11121112111211121112111211121112111211121111111111111111111111111111111111111111111111111110111011101110111011101110111011091109
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStock


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-31
Value-459.5-447.4-440.9-437.2-433.6-433.7-419.9-416.5-407.1-403.6-386.6-374.3-372.3-339.3-330.5-321.6-309.9-302.2-295.2-285.8-276.9-270.1-261.2-254.7-240.9-233.1-226.7-219.2-211.1-204.1-197.7-170.3
Percentage of CommonStockSharesOutstanding-41.3-40.2-39.6-39.3-39.0-39.0-37.8-37.5-36.6-36.3-34.8-33.7-33.5-30.5-29.7-28.9-27.9-27.2-26.6-25.7-24.9-24.3-23.5-22.9-21.7-21.0-20.4-19.7-19.0-18.4-17.8-15.4

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value66066967667968670170871974076377979780781483284084686587588289690591292893594195095496297698498899510131017
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic


Weighted
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value65866767567768469970571673776077679480481182983784486287287989390190892393093594494795596897697998610031009
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount


Antidilutive
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-31
Value400000.0300000.0500000.01000000.0700000.0600000.0600000.0400000.0800000.0500000.01900000.01900000.01600000.0900000.03500000.03000000.0900000.0900000.0600000.001000000.0300000.00600000.0400000.0600000.0600000.0400000.00.6600000.0400000.00800000.0500000.0
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2.732.012.052.021.672.152.032.222.231.942.132.161.981.699.291.51.451.321.41.361.171.161.311.511.381.311.621.531.431.21.281.2451.191.0251.1051.1051.0550.9051.0050.9350.8050.6550.790.790.710.510.5450.510.460.36
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value2.722.02.052.011.672.152.022.222.221.932.122.151.981.689.251.51.451.321.391.361.171.161.311.51.381.31.611.531.431.191.2751.241.1851.0151.0951.0951.050.8950.9950.9250.7950.6450.780.780.70.5050.540.5050.460.36
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1841134011381384108915011352154816501428153116291503132973091243119910921057114498996611341296121411439291376131111041567115611279748651088987871642891794645690777711522
Percentage of ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.928.822.130.127.430.825.930.131.528.526.629.328.324.3134.123.022.821.320.522.120.720.021.823.322.420.415.122.321.819.627.820.720.618.416.520.418.917.012.617.516.314.415.617.617.013.2

Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value231617541793177314961918187820212058179020162076193817112092198318691688183118051564156617822081193818552298220620801759188318521768154516401677161013911530145312701011118012731146834
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax45.137.734.938.637.739.336.039.339.335.735.037.436.431.338.436.735.632.935.434.932.832.434.237.435.733.037.335.734.631.233.433.232.329.231.231.430.827.230.028.526.122.526.828.927.421.0

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxExpenseBenefit


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value518413413410364444475466488399462483429401-5186.0789701616687674585587665781734704867836789671709701662588604635608528566549485372405495435318
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax10.18.98.08.99.29.19.19.19.38.08.08.78.17.3-95.214.613.412.013.313.012.312.212.814.013.512.514.113.513.111.912.612.612.111.111.511.911.610.311.110.810.08.39.211.210.48.0

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet

us-gaap:IncomeTaxesPaidNet


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7111.0289767147112783877161.0360371476-2.05555809743.0470417742-282.0651587871475856781375-146.0-491.0-450.0-676.0-39.0-455.0-331.0-868.0102-899.0409-282.0147-1732.01139-479.0136
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.90.05.616.73.70.25.37.513.70.06.36.79.0-0.010.210.718.60.19.18.115.6-5.812.510.616.00.89.511.022.9-2.6-8.7-8.1-12.4-0.7-8.7-6.2-16.62.0-17.68.0-5.83.3-39.325.8-11.53.4

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value282290279295289278278266259247240241203186188180179172174184173167164157153148146144138133127138133128128137135135141142148141142153152155
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.56.25.46.47.35.75.35.24.94.94.24.33.83.43.43.33.43.43.43.63.63.53.12.82.82.62.42.32.32.42.32.52.42.42.42.62.62.62.82.83.03.13.23.53.63.9

Interest Paid Net

us-gaap:InterestPaidNet

us-gaap:InterestPaidNet


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value141394139422140349178351148356151216131230134196133203112191134215101339-40.0192942295317876201721791035-207.0-69.0-198.0-1067.0810-113.0-202.0-1142.0844-98.0-218.0
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.78.52.79.23.57.23.46.82.87.12.63.92.54.22.53.62.54.02.23.72.84.51.96.1-0.73.41.53.70.93.21.33.61.33.419.7-3.9-1.3-3.9-20.915.9-2.3-4.5-25.919.1-2.3-5.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1798134113801363113214741403155515701391155415931509131072781194116810721144113197997911171300120411511431137012911088117411511106957103610421002863964904785639775778711516549514465362
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.028.826.829.728.530.226.930.230.027.827.028.728.423.9133.522.122.220.922.121.920.520.321.423.422.220.523.322.221.519.320.920.720.218.119.719.519.216.918.917.716.214.217.617.617.013.014.614.014.110.6

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1798134113801363113214741403155515701391155415931509131072781194116810721144113197997911171300120411511431137012911088117411511106957103610421002863964904785639775778711516
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.028.826.829.728.530.226.930.230.027.827.028.728.423.9133.522.122.220.922.121.920.520.321.423.422.220.523.322.221.519.320.920.720.218.119.719.519.216.918.917.716.214.217.617.617.013.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Operating Expenses

us-gaap:OperatingExpenses

us-gaap:OperatingExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3031300831352888259030863112328233363424354736593573353631993396324533393203321431103142329033543480363737803852381937843657361135923657352535573497360234913523346633533097300729032977
Percentage of OperatingExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax59.164.761.062.865.263.259.763.863.768.361.665.867.264.658.762.861.865.162.062.165.265.163.260.364.164.861.462.363.567.165.064.865.769.167.166.667.070.568.369.171.374.770.268.269.475.1

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value247319932006203116542143210022342260196022102269209919392251201220051793196519601660168719182208194919772373233021961854197319621878163317251786172415101617157813921137131314011279988999961748671
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax48.242.939.044.241.643.940.343.443.239.138.440.839.535.441.337.238.234.938.037.934.834.936.839.735.935.238.637.736.532.935.035.234.330.932.933.433.029.531.730.928.725.329.831.830.624.926.626.222.619.6

Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value19-26.0473.0-61.05.010.0-18.0-2.027-29.017-24.0-6.09.0169.0-23.0-1.0-3.0-21.04.0-21.0-6.0-20.0-12.0-5.09.0-4.04.0-12.04.03.04.08.0-15.015-22.0-12.09.0
Percentage of OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.4-0.60.90.1-1.50.10.2-0.3-0.00.5-0.50.3-0.5-0.10.20.30.2-0.4-0.0-0.1-0.40.1-0.4-0.1-0.4-0.2-0.10.1-0.10.1-0.20.10.10.10.1-0.30.3-0.4-0.20.2

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value43-1.0-242.021-43.027-51.0-7.08037-23.036-6.01931493120-87.01310.0-13.017-4.010.0-8.0-502.06.020163935.02117-171.046-15.08.0-322.0-13.09.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.0-4.70.5-1.10.6-1.0-0.11.50.7-0.40.6-0.10.30.60.90.60.4-1.70.30.2-0.30.3-0.10.2-0.1-8.20.10.30.37.00.10.40.3-3.30.9-0.30.2-6.3-0.30.2

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2425-289.0181822-61.0118210.06.019181937401511-64.014138.013171612-490.0111120
Percentage of OtherComprehensiveIncomeLossNetOfTax55.8-2500.0119.485.7-41.981.5119.6-157.1102.527.0-26.152.8-300.0100.0119.481.648.455.073.6107.7130.0-61.576.5-425.0160.0-150.097.6183.355.0125.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.50.5-5.60.40.50.5-1.20.21.60.20.10.30.30.30.70.70.30.2-1.20.30.30.20.20.30.30.2-8.00.20.20.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value19-26.0473.0-61.05.010.0-18.0-2.027-29.017-24.0-6.09.0169.0-23.0-1.0-3.0-21.04.0-21.0-6.0-20.0-5.09.0-4.0
Percentage of OtherComprehensiveIncomeLossNetOfTax44.22600.0-19.414.3141.918.5-19.6257.1-2.573.0126.147.2400.0-19.418.451.645.026.4-7.7-30.0161.523.5525.0-60.0250.0-83.345.0-25.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.4-0.60.90.1-1.50.10.2-0.3-0.00.5-0.50.3-0.5-0.10.20.30.2-0.4-0.0-0.1-0.40.1-0.4-0.1-0.4-0.10.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value43-1.0-242.021-43.027-51.0-7.08037-23.036-6.01931493120-87.01310.0-13.017-4.010.0-8.0-502.06.020163935.02117-171.046-15.08.0-322.0-13.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.8-0.0-4.70.5-1.10.6-1.0-0.11.50.7-0.40.6-0.10.30.60.90.60.4-1.70.30.2-0.30.3-0.10.2-0.1-8.20.10.30.37.00.10.40.3-3.30.9-0.30.2-6.3-0.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Income

us-gaap:OtherIncome

us-gaap:OtherIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value161413161918201518181616181515141417
Percentage of OtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.30.30.30.50.40.40.30.30.40.30.30.30.30.30.30.30.3

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:OtherNonoperatingIncomeExpense


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1255166371315356535777464842-42.029151436740297746283014226712022383728234043282116541726159.025191.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.41.11.30.83.31.11.11.01.11.50.80.90.8-0.80.52.80.81.30.80.61.61.00.50.52.60.51.20.30.40.70.70.50.40.80.80.50.40.31.10.30.50.30.20.60.50.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value51324649514145963972488052125146523650105757555853175475545054085250513251685174477048295208556254295614615361826015563856305573547052905250534352215112510851014858449044104408418239653754367133033415
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:CargoAndFreight


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value5132464948034596397248804851514652365010538755585317512250875050
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.093.4100.0100.0100.093.1100.0100.0100.093.6100.0100.093.693.393.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.093.4100.0100.0100.093.1100.0100.0100.093.6100.0100.093.693.393.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CargoAndFreight100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value372352338323272349361370360374370370355353363358
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.27.66.67.06.87.26.97.26.97.56.46.76.76.46.76.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.27.66.67.06.87.26.97.26.97.56.46.76.76.46.76.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementBusinessSegments

unp:Bulk


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1648151215621478138615341549168216781620
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.132.530.432.234.931.429.732.732.032.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.132.530.432.234.931.429.732.732.032.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax unp:Bulk100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:Industrial


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1859165616611567150018941407148514941410140514971437134012821324
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.235.632.334.137.838.827.028.928.528.124.426.927.024.523.524.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.235.632.334.137.838.827.028.928.528.124.426.927.024.523.524.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax unp:Industrial100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:Premium


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value1625148115801551108614521507156316211551174817141655151115191450
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.731.930.733.727.329.828.930.431.031.030.430.831.127.627.926.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.731.930.733.727.329.828.930.431.031.030.430.831.127.627.926.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax unp:Premium100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:StatementGeographical

country:MX


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value618565600556389583519602603576650636635579603555
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.012.211.712.19.811.910.011.711.511.511.311.411.910.611.110.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.012.211.712.19.811.910.011.711.511.511.311.411.910.611.110.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax country:MX100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value55045001514149194244522952125516559653845757592856725475545054085250513251685174477048295208556254295614615361826015563856305573547052905250534352215112510851014858449044104408418239653754367133033415
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax107.2107.6100.0107.0106.8107.2100.0107.2106.9107.5100.0106.7106.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6207361793623986371463555622166167361978617086131959147593125868957789578065739756478559005571856305556905577254600537635417753145527165256851562508984973148958490264856147153470704637445336450964506644029435874308842184
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities

us-gaap:Liabilities


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4777045539454404651547103462254354543962435374357738724386673878033400329503824636863361773578636021352683529733898331643318732088315273101530122296262850628184285022841727276275212728726581265182650125723255412532525383
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets77.073.772.873.074.174.370.670.970.671.165.565.266.157.857.066.665.364.764.264.063.363.362.161.761.360.459.859.058.458.257.357.658.158.557.858.558.858.658.858.858.458.658.860.2

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:LiabilitiesAndStockholdersEquity


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value6207361793623986371463555622166167361978617086131959147593125868957789578065739756478559005571856305556905577254600537635417753145527165256851562508984973148958490264856147153470704637445336450964506644029435874308842184
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1430316254169581719916452159911812818016181711774220423206451990924389248561915119615197231993220284204222047520702205992099021057211892155321440212722122520774205242014419877195491908718755185781856518306180461776316801
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.026.327.227.025.925.729.429.129.428.934.534.833.942.243.033.434.735.335.836.036.736.737.938.338.739.640.241.041.641.842.742.441.941.542.241.541.241.441.241.241.641.441.239.8

Assets Current

us-gaap:AssetsCurrent

us-gaap:AssetsCurrent


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value37643719421451305083380434594073408639534163481644943897400644493869358835964602456650834130394249834479467947804503467939904064454346463614394639563565372742143699367734323680
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.16.06.88.18.06.15.66.66.66.47.08.17.76.76.97.86.96.46.58.28.29.17.67.39.28.48.99.18.79.28.08.39.39.67.78.48.57.98.39.48.48.48.08.7

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:CashAndCashEquivalentsAtCarryingValue


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value1115118317992601270611308311250104910591273181016041048127518471286104912771909183026731391107820411587158618871537185714321366184519171063113012019951217164710551248108613581317175318501249878
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.81.92.94.14.31.81.32.01.71.72.23.12.71.82.23.22.31.92.33.43.34.82.52.03.83.03.03.63.03.62.92.83.83.92.32.42.62.22.73.72.42.92.50.00.00.04.40.00.0

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value1159119818182618272412078561303107110981328181016041048127512771391
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.91.92.94.14.31.91.42.11.71.82.23.12.71.82.22.32.5

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent

us-gaap:AccountsReceivableNetCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1666161015051565138816691595165018091672175517921634157114931428135712791258135113731355135615081513156416111635166615421414146914681512133115831497132714011424142712751184666
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.72.62.42.52.22.72.62.72.92.73.03.02.82.72.62.52.42.32.32.42.52.42.52.82.82.93.13.13.23.02.83.03.03.12.83.43.22.93.13.23.22.92.71.6

Other Assets Current

us-gaap:OtherAssetsCurrent

us-gaap:OtherAssetsCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value249207212255261253222342393382333335394380399342410410284322373339647397432334493304322316223316334311297260288247189231272265367350
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.30.30.40.40.40.40.60.60.60.60.60.70.70.70.60.70.70.50.60.70.61.20.70.80.60.90.60.60.60.40.60.70.60.60.60.60.50.40.50.60.60.90.8

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value7598275620754207538775017746587424674129735317305972805721677174671171708136997169878693816905868336676506701466564655886489664146632146235761442605195981259103584835775057279567275580755011544445371051908
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets122.4122.4120.9118.3118.0120.0120.4119.6119.2119.1123.1121.7122.2123.2122.5121.9123.7124.1123.9121.4121.5120.2121.9122.0119.8120.7119.9118.6119.2118.9120.3120.7119.3118.9121.5120.5120.3121.3120.7119.2120.5

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType

unp:EquipmentFreightCars


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value21452157211820822095208920832159217221982229224222922295225522542253225122432241224722192203217821372106211621152073207920852048204220101991198719381953195719181886
Percentage of PropertyPlantAndEquipmentGross2.82.92.82.82.82.82.82.93.03.03.13.13.23.23.23.23.23.23.23.33.33.33.33.33.33.33.33.43.43.43.53.53.53.53.53.53.53.63.63.63.6
Percentage of Assets3.53.53.43.33.33.43.43.53.53.63.83.83.94.03.93.94.04.04.04.04.04.04.04.13.94.04.04.04.04.14.24.24.24.14.24.24.24.34.34.34.4
Percentage of Assets unp:EquipmentFreightCars0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentLocomotives


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value93159322937594279400945694679792967996389792971597479667968693099648965196929433917290069027854885808587827681727882772475187464740872797297727369026649650264336136
Percentage of PropertyPlantAndEquipmentGross12.312.312.412.512.512.712.813.213.213.213.413.513.613.613.713.313.813.914.013.813.613.413.613.013.213.413.113.112.812.812.612.612.712.612.712.812.412.111.912.011.8
Percentage of Assets15.015.115.014.814.815.215.415.815.715.716.616.416.616.716.816.217.117.317.416.816.516.116.515.915.816.215.715.515.315.215.115.215.115.015.515.514.914.714.414.314.2
Percentage of Assets unp:EquipmentLocomotives0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentWorkEquipmentAndOther


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value11171108110711011098109410811073106510561040989958941936939926914905900901900897870852742684601571559561559546537535530527529529516305
Percentage of PropertyPlantAndEquipmentGross1.51.51.51.51.51.51.51.41.41.41.41.41.31.31.31.31.31.31.31.31.31.31.31.31.31.21.11.00.90.90.90.90.90.90.90.90.91.01.01.00.6
Percentage of Assets1.81.81.81.71.71.81.81.71.71.71.81.71.61.61.61.61.61.61.61.61.61.61.61.61.61.41.31.11.11.11.11.11.11.11.11.11.11.21.21.10.7
Percentage of Assets unp:EquipmentWorkEquipmentAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:Road


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value561755582855627551705476154365539545345453001526655233951958516125125150837504185006849445490374854548081475504707346692459814542344992
Percentage of PropertyPlantAndEquipmentGross73.973.873.873.273.072.872.772.172.172.171.972.071.972.071.872.171.771.371.071.071.171.070.771.270.970.871.2
Percentage of Assets90.590.389.186.686.287.487.586.285.985.988.587.687.988.787.987.888.788.588.086.286.385.386.286.884.985.585.3
Percentage of Assets unp:Road0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadBallast


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value59975956592658935855579857525698564355945561551854825442540653765336528152425197515250735024498849274869482647704720466346214570449144414399434642914215417841354011
Percentage of PropertyPlantAndEquipmentGross7.97.97.97.87.87.87.77.77.77.77.67.67.67.67.67.77.67.67.67.67.67.67.57.67.67.67.67.67.77.77.77.77.77.77.77.77.77.77.77.77.7
Percentage of Assets9.79.69.59.29.29.39.39.29.19.19.49.39.39.49.49.49.49.49.49.29.39.19.29.39.19.29.29.19.29.29.39.39.29.19.39.29.39.39.39.29.3
Percentage of Assets unp:RoadBallast0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadOther


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value2117521058210302075920629204862033120054198371970319584193751926819143189721873218607182901813817888177001754017374171911685016615164761617415996157371559615158149891488214806146091442714174141181384613634
Percentage of PropertyPlantAndEquipmentGross27.927.827.927.527.527.427.427.127.027.026.926.826.926.926.826.826.626.426.326.226.226.226.126.226.025.926.125.926.026.026.125.625.625.825.825.825.925.825.925.826.3
Percentage of Assets34.134.133.732.632.532.933.032.432.132.133.132.732.833.132.832.632.932.732.631.831.831.431.832.031.131.331.330.831.030.931.431.030.630.631.431.031.131.331.330.731.6
Percentage of Assets unp:RoadOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadTies


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1120811121110511099710886107931069310653105681049610409103951031110227101321008410001990098129761966795479439939392829194910290558968888187858712860885018404831782128077798779037631
Percentage of PropertyPlantAndEquipmentGross14.814.714.714.614.514.514.414.414.414.414.314.414.414.414.314.414.314.314.214.314.314.214.214.314.314.314.414.514.614.714.714.714.714.714.714.714.714.714.714.714.7
Percentage of Assets18.118.017.717.317.117.317.317.217.117.117.617.517.617.717.517.617.717.717.617.317.417.117.317.517.117.317.317.217.417.417.717.817.617.517.817.717.717.817.717.517.7
Percentage of Assets unp:RoadTies0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadrailAndOtherTrackMaterialMember


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312012-03-312011-12-312010-12-31
Value1779517693176201752117391172881717817049169531687216785166701655116439163271622616124159741584515699155621539015236151201492214745145881386113220126041246111992
Percentage of PropertyPlantAndEquipmentGross23.423.423.423.223.223.223.123.023.123.123.123.123.123.123.123.223.123.022.923.023.023.022.923.123.023.023.123.223.122.922.923.1
Percentage of Assets28.728.628.227.527.427.827.927.527.527.528.428.128.228.428.228.328.528.628.427.927.927.627.928.127.527.727.727.928.027.827.627.8
Percentage of Assets unp:RoadrailAndOtherTrackMaterialMember0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value74474974811571193118612491222118011151024867739647736795730903987105010841186125011931245117410801087107689895411331122994889906931110210041056764
Percentage of PropertyPlantAndEquipmentGross1.01.01.01.51.61.61.71.61.61.51.41.21.00.91.01.11.01.31.41.51.61.81.91.81.91.81.71.71.81.51.61.91.91.71.61.61.72.01.82.01.5
Percentage of Assets1.21.21.21.81.91.92.02.01.91.81.71.51.31.11.31.41.31.61.81.91.92.12.32.22.32.22.02.12.11.81.92.32.32.01.91.92.02.42.22.31.8
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value125771258712600126101259312639126311302412916128921306112946129971290312877125021282712816128401257412320121251212711596115691143511076
Percentage of PropertyPlantAndEquipmentGross16.616.616.716.716.816.917.017.617.617.617.917.918.118.118.217.918.418.518.618.418.218.118.217.717.817.817.5
Percentage of Assets20.320.420.219.819.820.320.521.020.921.022.121.822.122.322.321.822.722.923.022.322.121.722.221.621.421.521.0
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value52795245524652745274527552765271526952665264526852725271525852285236520752205207520552035195518351835215519451535134512851205092510051065105509350955101509850084984
Percentage of PropertyPlantAndEquipmentGross6.96.97.07.07.07.17.17.17.27.27.27.37.37.47.47.57.57.57.67.67.77.87.87.98.08.18.28.38.48.58.68.68.78.88.99.09.19.39.49.39.6
Percentage of Assets8.58.58.48.38.38.58.68.58.58.68.98.99.09.19.19.19.39.39.49.29.39.39.59.69.69.89.99.810.010.110.310.410.410.510.810.811.011.311.311.111.6
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value120712111199117611961193113611581165112111171128112610991105102810171010974960960950919924918899872824803797711668658641633637626607610563565
Percentage of PropertyPlantAndEquipmentGross1.61.61.61.61.61.61.51.61.61.51.51.61.61.51.61.51.51.51.41.41.41.41.41.41.41.41.41.31.31.31.21.11.11.11.11.11.11.11.11.01.1
Percentage of Assets1.92.01.91.81.91.91.81.91.91.81.91.91.91.91.91.81.81.81.71.71.71.71.71.71.71.71.71.61.61.61.41.41.31.31.31.41.31.31.41.21.3
Percentage of Assets us-gaap:TechnologyEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value2183421558212592101220747205372033020641204162020320126199571979919475192081893519064188311866918397181891794317698174391738417218169421680416541163301606315792155721537415282151101487014702145101428513655
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets35.234.934.133.032.633.033.033.333.132.934.033.633.733.733.233.033.833.733.532.732.732.232.432.432.132.432.132.032.132.132.332.331.831.732.432.132.132.432.231.731.7

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType

unp:EquipmentFreightCars


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value80680178979078478377987188390692993999998598398097997097296996696696295697496896896996999010001001100910041018103210291075106110481040
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment3.73.73.73.83.83.83.84.24.34.54.64.75.05.15.15.25.15.25.25.35.35.45.45.55.65.65.75.85.96.16.26.36.56.56.76.86.97.37.37.37.6
Percentage of Assets1.31.31.31.21.21.31.31.41.41.51.61.61.71.71.71.71.71.71.71.71.71.71.81.81.81.81.81.81.91.92.02.02.12.12.22.22.22.42.42.32.4
Percentage of Assets unp:EquipmentFreightCars0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentLocomotives


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value36743605355535483456345334343807377037393861383638283737369736063941390039393859383037323726362737303775369437043625354434813380331532833321324531533074300329052699
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment16.816.716.716.916.716.816.918.418.518.519.219.219.319.219.219.020.720.721.121.021.120.821.120.821.521.921.822.021.921.721.721.421.321.421.721.521.220.920.720.319.8
Percentage of Assets5.95.85.75.65.45.65.66.16.16.16.56.56.56.56.46.37.07.07.16.96.96.76.86.76.97.17.07.07.07.07.06.96.86.87.06.96.86.86.76.46.3
Percentage of Assets unp:EquipmentLocomotives0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentWorkEquipmentAndOther


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value3773613513403383303223173093113012972882772672632512412322262132031911851721611531441351261191121059789807165574939
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment1.71.71.71.61.61.61.61.51.51.51.51.51.51.41.41.41.31.31.21.21.21.11.11.11.00.90.90.90.80.80.70.70.70.60.60.50.50.40.40.30.3
Percentage of Assets0.60.60.60.50.50.50.50.50.50.50.50.50.50.50.50.50.40.40.40.40.40.40.30.30.30.30.30.30.30.20.20.20.20.20.20.20.20.10.10.10.1
Percentage of Assets unp:EquipmentWorkEquipmentAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:FinanceLeaseAssets


Accumulated
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value737723774766797780762717
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment3.53.43.73.73.93.83.73.5
Percentage of Assets1.21.11.21.21.31.31.21.2
Percentage of Assets unp:FinanceLeaseAssets0.00.00.00.00.00.00.00.0

unp:Road


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value164491625616044158261565915481152921512614945147511454214393142031401413801136451346813315131141294612795126671246112314121611198811807
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment75.375.475.575.375.575.475.273.373.273.072.372.171.772.071.972.170.670.770.270.470.370.670.470.670.069.669.7
Percentage of Assets26.526.325.724.824.624.924.824.424.224.124.624.324.224.323.923.823.823.823.523.023.022.722.822.922.422.622.4
Percentage of Assets unp:Road0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadBallast


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value180817851753172317041687166916471636161915951573155315331509149314741455143014061392137513501328131012881264124112201195117111481127110810851064104310231008988944
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment8.38.38.28.28.28.28.28.08.08.07.97.97.87.97.97.97.77.77.77.67.77.77.67.67.57.57.57.47.47.37.37.37.27.27.17.07.07.06.96.96.9
Percentage of Assets2.92.92.82.72.72.72.72.72.72.62.72.72.62.72.62.62.62.62.62.52.52.52.52.52.42.42.42.42.42.32.42.32.32.32.32.32.22.32.22.22.2
Percentage of Assets unp:RoadBallast0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadOther


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value44674386432942594195412440563981391538443766370036253549348234203352329732263172311930903021298329432898285228312796278427262688265126212583255925352511250224992376
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment20.520.320.420.320.220.120.019.319.219.018.718.518.318.218.118.117.617.517.317.217.117.217.117.116.916.816.816.816.917.017.017.017.017.016.916.917.017.117.217.517.4
Percentage of Assets7.27.16.96.76.66.66.66.46.36.36.46.26.26.16.06.05.95.95.85.65.65.55.55.55.45.55.45.45.45.55.55.55.45.45.55.45.55.55.55.55.5
Percentage of Assets unp:RoadOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadTies


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value34283387333132943264323031863176312630753025302729812935288128632823278227362712267626422595257625372495245024352396235723102265222721942157213820962060202819911858
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment15.715.715.715.715.715.715.715.415.315.215.015.215.115.115.015.114.814.814.714.714.714.714.714.814.614.514.514.514.514.414.414.314.314.314.114.114.114.014.013.913.6
Percentage of Assets5.55.55.35.25.15.25.25.15.15.05.15.15.15.15.05.05.05.04.94.84.84.74.84.84.74.74.64.64.64.64.64.64.54.54.64.54.54.54.54.44.3
Percentage of Assets unp:RoadTies0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadrailAndOtherTrackMaterialMember


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312012-03-312011-12-312010-12-31
Value67466698663165506496644063816322626862136156609360445997592958695819578157225656560855605495542753715307524149704756463945924458
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment30.931.131.231.231.331.431.430.630.730.830.630.530.530.830.931.030.530.730.630.730.831.031.031.130.930.830.930.931.131.631.632.6
Percentage of Assets10.910.810.610.310.210.410.310.210.210.110.410.310.310.410.310.210.310.310.310.010.110.010.110.19.910.09.910.010.110.210.210.3
Percentage of Assets unp:RoadrailAndOtherTrackMaterialMember0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value485747674695467845784566453549954962495650915072511549994947484951715111514350545009490148794768487649044815
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment22.222.122.122.322.122.222.324.224.324.525.325.425.825.725.825.627.127.127.527.527.527.327.627.328.028.528.4
Percentage of Assets7.87.77.57.37.27.37.48.18.08.18.68.68.78.78.68.49.29.19.29.09.08.88.98.99.09.29.1
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value528535520508510490503520509496493492481462460441425405412397385375358357347326320305295286286282269255273276266255259253241
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment2.42.52.42.42.52.42.52.52.52.52.42.52.42.42.42.32.22.22.22.22.12.12.02.02.01.91.91.81.81.81.81.81.71.71.81.81.81.71.81.81.8
Percentage of Assets0.90.90.80.80.80.80.80.80.80.80.80.80.80.80.80.80.80.70.70.70.70.70.70.70.60.60.60.60.60.60.60.60.50.50.60.60.60.60.60.60.6
Percentage of Assets us-gaap:TechnologyEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:PropertyPlantAndEquipmentNet


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5414854062541615437554270541215391653488531155285652679522105194751696516055103650814505505038949939494614907148866481494751246928462724555344901441894374943311429114237641997416174093740309399343942538908385123825337202
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets87.287.586.885.385.487.087.486.386.186.289.188.088.589.589.388.990.090.490.488.788.888.089.589.687.788.387.886.787.186.888.088.587.587.389.188.488.388.988.687.588.488.488.888.2

us-gaap:PropertyPlantAndEquipmentNet us-gaap:PropertyPlantAndEquipmentByType

unp:EquipmentFreightCars


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1339135613291292131113061304128812891292130013031293131012721274127412811271127212811253124112221163113811481146110410891085104710331006973955909878896870846
Percentage of PropertyPlantAndEquipmentNet2.52.52.52.42.42.42.42.42.42.42.52.52.52.52.52.52.52.52.52.52.62.62.52.52.42.42.52.52.52.52.52.42.42.42.32.32.22.22.22.22.2
Percentage of Assets2.22.22.12.02.12.12.12.12.12.12.22.22.22.32.22.22.32.32.32.32.32.22.32.32.12.12.22.22.12.12.22.12.12.12.12.02.01.92.01.92.0
Percentage of Assets unp:EquipmentFreightCars0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentLocomotives


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value56415717582058795944600360335985590958995931587959195930598957035707575157535574534252745301492148504812458244684257418040374084409339963976402837493575349935283437
Percentage of PropertyPlantAndEquipmentNet10.410.610.710.811.011.111.211.211.111.211.311.311.411.511.611.211.211.411.411.210.810.710.810.210.210.39.99.89.59.59.29.49.59.49.59.79.28.98.88.99.0
Percentage of Assets9.19.39.39.29.49.69.89.79.69.610.09.910.110.310.49.910.110.310.39.99.69.59.79.29.09.18.78.58.38.28.18.38.38.28.48.68.17.97.87.88.0
Percentage of Assets unp:EquipmentLocomotives0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:EquipmentWorkEquipmentAndOther


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value740747756761760764759756756745739692670664669676675673673674688697706685680581531457436433442447441440446450456464472467266
Percentage of PropertyPlantAndEquipmentNet1.41.41.41.41.41.41.41.41.41.41.41.31.31.31.31.31.31.31.31.31.41.41.41.41.41.21.11.01.01.01.01.01.01.01.11.11.11.21.21.20.7
Percentage of Assets1.21.21.21.21.21.21.21.21.21.21.21.21.11.11.21.21.21.21.21.21.21.21.31.31.31.11.00.90.80.90.90.90.90.90.91.01.01.01.01.00.6
Percentage of Assets unp:EquipmentWorkEquipmentAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:Road


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value397263957239583393443910238884386623832838056379143779737565374093723737036367733660036130359233559935286348833461234378338203343533185
Percentage of PropertyPlantAndEquipmentNet73.473.273.172.472.171.871.771.771.671.771.771.972.072.071.872.172.071.571.371.371.371.170.871.471.271.271.7
Percentage of Assets64.064.063.461.861.562.562.761.861.761.863.963.363.764.464.164.164.864.664.563.263.462.563.463.962.462.963.0
Percentage of Assets unp:Road0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadBallast


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value41894171417341704151411140834051400739753966394539293909389738833862382638123791376036983674366036173581356235293500346834503422336433333314328232483192317031473067
Percentage of PropertyPlantAndEquipmentNet7.77.77.77.77.67.67.67.67.57.57.57.67.67.67.67.67.67.67.67.67.67.57.57.67.67.67.77.77.87.87.97.97.87.97.97.97.97.97.98.08.0
Percentage of Assets6.76.76.76.56.56.66.66.56.56.56.76.76.76.86.76.86.86.86.86.76.86.66.76.86.76.76.86.76.86.86.97.06.96.97.07.07.07.07.07.07.1
Percentage of Assets unp:RoadBallast0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadOther


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value1670816672167011650016434163621627516073159221585915818156751564315594154901531215255149931491214716145811445014353142081390713717136241334313200129531287012470123381226112223120501189211663116161134711258
Percentage of PropertyPlantAndEquipmentNet30.930.830.830.330.330.230.230.030.030.030.030.030.130.230.030.030.029.729.629.529.529.429.429.529.329.229.429.329.429.329.428.828.828.929.129.029.028.929.128.829.4
Percentage of Assets26.927.026.825.925.926.326.425.925.825.926.726.426.727.026.826.727.026.826.826.126.225.926.326.425.725.825.825.425.625.425.925.525.225.225.925.625.625.725.825.226.1
Percentage of Assets unp:RoadOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadTies


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value77807734772077037622756375077477744274217384736873307292725172217178711870767049699169056844681767456699665266206572652464756447638163076247617961166017595959125773
Percentage of PropertyPlantAndEquipmentNet14.414.314.314.214.014.013.914.014.014.014.014.114.114.114.114.114.114.114.014.114.114.114.014.214.214.314.414.514.614.814.814.914.914.914.914.814.914.914.915.015.1
Percentage of Assets12.512.512.412.112.012.212.212.112.112.112.512.412.512.612.512.612.712.712.712.512.612.412.512.712.412.612.612.612.712.813.013.213.013.013.213.113.213.313.213.113.4
Percentage of Assets unp:RoadTies0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

unp:RoadrailAndOtherTrackMaterialMember


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-312012-03-312011-12-312010-12-31
Value1104910995109891097110895108481079710727106851065910629105771050710442103981035710305101931012310043995498309741969395519438934788918464796578697534
Percentage of PropertyPlantAndEquipmentNet20.420.320.320.220.120.020.020.120.120.220.220.320.220.220.120.320.320.220.120.120.120.019.920.120.120.120.220.320.219.819.719.7
Percentage of Assets17.817.817.617.217.117.417.517.317.317.418.017.817.918.118.018.018.218.218.217.817.917.617.818.017.617.817.717.918.017.617.417.5
Percentage of Assets unp:RoadrailAndOtherTrackMaterialMember0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value74474974811571193118612491222118011151024867739647736795730903987105010841186125011931245117410801087107689895411331122994889906931110210041056764
Percentage of PropertyPlantAndEquipmentNet1.41.41.42.12.22.22.32.32.22.11.91.71.41.31.41.61.41.82.02.12.22.42.62.52.62.52.32.42.42.02.22.62.62.32.12.22.32.72.52.72.0
Percentage of Assets1.21.21.21.81.91.92.02.01.91.81.71.51.31.11.31.41.31.61.81.91.92.12.32.22.32.22.02.12.11.81.92.32.32.01.91.92.02.42.22.31.8
Percentage of Assets us-gaap:ConstructionInProgress0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Equipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value772078207905793280158073809680297954793679707874788279047930765376567705769775207311722472486828669365316261
Percentage of PropertyPlantAndEquipmentNet14.314.514.614.614.814.915.015.015.015.015.115.115.215.315.415.015.115.215.315.114.814.714.814.214.113.913.5
Percentage of Assets12.412.712.712.412.613.013.113.012.912.913.513.313.413.713.713.313.613.813.813.413.113.013.312.712.412.311.9
Percentage of Assets us-gaap:Equipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Land


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value52795245524652745274527552765271526952665264526852725271525852285236520752205207520552035195518351835215519451535134512851205092510051065105509350955101509850084984
Percentage of PropertyPlantAndEquipmentNet9.79.79.79.79.79.79.89.99.910.010.010.110.110.210.210.210.310.310.410.410.510.610.610.810.911.111.211.311.411.611.711.811.912.012.212.212.412.712.812.713.0
Percentage of Assets8.58.58.48.38.38.58.68.58.58.68.98.99.09.19.19.19.39.39.49.29.39.39.59.69.69.89.99.810.010.110.310.410.410.510.810.811.011.311.311.111.6
Percentage of Assets us-gaap:Land0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TechnologyEquipment


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-12-31
Value679676679668686703633638656625624636645637645587592605562563575575561567571573552519508511425386389386360361360352351310324
Percentage of PropertyPlantAndEquipmentNet1.31.31.31.21.31.31.21.21.21.21.21.21.21.21.21.21.21.21.11.11.21.21.11.21.21.21.21.11.11.21.00.90.90.90.90.90.90.90.90.80.8
Percentage of Assets1.11.11.11.01.11.11.01.01.11.01.11.11.11.11.11.01.01.11.01.01.01.01.01.11.11.11.01.01.01.00.90.80.80.80.80.80.80.80.80.70.8
Percentage of Assets us-gaap:TechnologyEquipment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures

us-gaap:InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures


Investments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value22772167216420712042207820502003198919511912188718561810180915661504148014571446140814041410137313751375139013841369134413211282127212401259123512111210117511711176115711371036
Percentage of InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.73.53.53.33.23.33.33.23.23.23.23.23.23.13.12.72.72.62.62.62.52.52.62.62.52.62.62.62.72.62.72.62.62.62.72.62.62.72.62.62.72.72.62.5

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1635158116101642170017731812193120762146
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.62.62.62.62.72.82.93.13.43.5

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent

us-gaap:OtherAssetsNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value249264249496460440436483442413393399392386386346291282276318255214194299307363375851789686671301300299283272270252260256246241266266
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.40.80.70.70.70.80.70.70.70.70.70.70.70.60.50.50.50.60.50.40.40.60.60.70.71.61.51.31.30.60.60.60.60.60.60.60.60.60.60.60.60.6

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value32473306310428613289313030943166336835593160306129162855313929282875312528822850268628852612298729822974330333733319355630862964309230582923316131373133310830822974276727132470
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets5.25.45.04.55.25.05.05.15.55.85.35.25.04.95.45.15.15.65.25.14.85.24.85.65.55.66.36.46.47.06.26.16.36.36.26.76.86.96.96.86.86.36.35.9

Accounts Payable Current

us-gaap:AccountsPayableCurrent

us-gaap:AccountsPayableCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value61263461264959571174971174679487290584476810138388287899558197877917439341005882877870924888803831908815825886955844819793816729677612
Percentage of AccountsPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.01.01.01.00.91.11.21.11.21.31.51.51.41.31.81.51.51.41.71.51.41.41.41.71.91.71.71.71.81.71.61.71.91.71.71.92.11.91.81.81.91.71.61.5

Liabilities Current

us-gaap:LiabilitiesCurrent

us-gaap:LiabilitiesCurrent


Liabilities
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value43574871417348415279464143514587566552624626452943724746393938313406384836403257309532873206350834133390376538333777418837913655382536103119387439173902331737243153294729522682
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.07.96.77.68.37.57.17.49.28.67.87.67.48.26.86.76.06.96.55.85.65.95.96.56.36.47.17.37.38.27.67.57.87.46.68.28.48.67.48.37.26.86.96.4

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityCurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-30
Value297294321308319326362377442
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.50.50.50.50.50.50.60.60.7

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value614576592524453487538616549509575578570591671656626577570592551486550637593554640652609554579549574520556562500502624601551473548480
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.00.90.90.80.70.80.91.00.90.81.01.01.01.01.21.11.11.01.01.11.00.91.01.21.11.01.21.21.21.11.21.11.21.11.21.21.11.11.41.31.31.11.31.1

Taxes Payable Current

us-gaap:TaxesPayableCurrent

us-gaap:TaxesPayableCurrent


Taxes
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value769974635550970754496580644934694644579641547561523901472593470764434562476675412562509877491415413585368613513704482567418464337224
Percentage of TaxesPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.21.61.00.91.51.20.80.91.01.51.21.11.01.10.91.00.91.60.81.10.81.40.81.00.91.30.81.11.01.71.00.80.81.20.81.31.11.61.11.30.91.10.80.5

Long Term Debt

us-gaap:LongTermDebt

us-gaap:LongTermDebt


Long
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value2672925200223911694415007142011148095778997890692429848
Percentage of LongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets42.840.937.929.326.926.021.819.319.119.721.423.3

Long Term Debt And Capital Lease Obligations

us-gaap:LongTermDebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value2770225117256602608026439263652394324314229552340920925209432135715697161441593015229143101424915205147771479113607127981290811884110181104510385954488728764907693098801877386368066869787658759901690039636
Percentage of LongTermDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets44.640.641.140.941.642.438.839.237.238.235.435.336.427.227.927.827.025.625.627.026.526.524.923.823.822.420.921.020.118.817.817.918.519.218.718.618.617.819.319.419.920.720.922.8

Deferred Income Tax Liabilities Net

us-gaap:DeferredIncomeTaxLiabilitiesNet

us-gaap:DeferredIncomeTaxLiabilitiesNet


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value12389123071224712328121711208811992
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets20.019.919.619.319.219.419.4

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value172185276307310
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0
Percentage of Assets0.30.30.50.50.6
Percentage of Assets us-gaap:OtherPostretirementBenefitPlansDefinedBenefit0.00.00.00.00.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value620493438474405
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent360.5266.5158.7154.4130.6
Percentage of Assets1.00.80.70.80.7
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent

us-gaap:OtherLiabilitiesNoncurrent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value20662073207719731894179217881775173118351871192519421907193119611899186219011785180318151844179619592040206417161659166516802026212422102248201620882108213617221795179018132021
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.33.43.33.13.02.92.92.92.83.03.23.23.33.33.33.43.43.33.43.23.23.33.43.33.63.83.93.33.23.33.44.14.34.64.84.34.54.64.73.84.14.14.24.8

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1256117112831293132013391471154216121663
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.01.92.12.02.12.22.42.52.62.7

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-312020-09-30
Value273304
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0100.0
Percentage of Assets0.40.5

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-312020-09-30
Value229269
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0100.0
Percentage of Assets0.40.4

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-312020-09-30
Value220226
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0100.0
Percentage of Assets0.40.4

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-312020-09-30
Value216218
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0100.0
Percentage of Assets0.30.3

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-312020-09-30
Value567784
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0100.0
Percentage of Assets0.91.2

Operating Lease Liability

us-gaap:OperatingLeaseLiability

us-gaap:OperatingLeaseLiability


Operating
Period End2020-12-312020-09-30
Value16041601
Percentage of OperatingLeaseLiability100.0100.0
Percentage of Assets2.62.5

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-312020-09-30
Value18301842
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0100.0
Percentage of Assets2.92.9

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-312020-09-30
Value226241
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0100.0
Percentage of Assets0.40.4

Stockholders Equity

us-gaap:StockholdersEquity

us-gaap:StockholdersEquity


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1430316254169581719916452159911812818016181711774220423206451990924389248561915119615197231993220284204222047520702205992099021057211892155321440212722122520774205242014419877195491908718755185781856518306180461776316801
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.026.327.227.025.925.729.429.129.428.934.534.833.942.243.033.434.735.335.836.036.736.737.938.338.739.640.241.041.641.842.742.441.941.542.241.541.241.441.241.241.641.441.239.8

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value14303162541695817199164521599118128180161817117742204232064519909243892485619151196151972319932202842042220475207022059920990210572118921553214402127221225207742052420144198771954919087187551857818565183061804617763174361732317213168011531515456
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets23.026.327.227.025.925.729.429.129.428.934.534.833.942.243.033.434.735.335.836.036.736.737.938.338.739.640.241.041.641.842.742.441.941.542.241.541.241.441.241.241.641.441.20.00.00.039.80.00.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-1551.0-1594.0-1593.0-1351.0-1372.0-1329.0-1356.0-1305.0-1298.0-1378.0-1415.0-1392.0-1428.0-1422.0-1141.0-1172.0-1221.0-1252.0-1272.0-1185.0-1198.0-1208.0-1195.0-1212.0-1208.0-1218.0-1210.0-708.0-714.0-734.0-750.0-1143.0-1148.0-1169.0-1186.0-1015.0-1061.0-1046.0-1054.0-732.0-719.0-728.0-734.0-649.0-648.0-648.0-654.0-704.0-74.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-10.8-9.8-9.4-7.9-8.3-8.3-7.5-7.2-7.1-7.8-6.9-6.7-7.2-5.8-4.6-6.1-6.2-6.3-6.4-5.8-5.9-5.9-5.8-5.9-5.8-5.8-5.7-3.3-3.3-3.5-3.5-5.5-5.6-5.8-6.0-5.2-5.6-5.6-5.7-3.9-3.9-4.0-4.1-3.7-3.7-3.8-3.9-4.6-0.5
Percentage of Assets-2.5-2.6-2.6-2.1-2.2-2.1-2.2-2.1-2.1-2.2-2.4-2.3-2.4-2.5-2.0-2.0-2.2-2.2-2.3-2.1-2.2-2.2-2.2-2.3-2.2-2.3-2.3-1.3-1.4-1.4-1.5-2.3-2.3-2.4-2.5-2.2-2.3-2.3-2.3-1.6-1.6-1.7-1.70.00.00.0-1.60.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value4499487448644849413541124523450539543929444938033778447344764454443144064421440643934381441744004377435143214299426942334210418941624134411340974077405640314020399939883985398439783959396839493926
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest31.530.028.728.225.125.725.025.021.822.121.818.419.018.318.023.322.622.322.221.721.521.421.321.420.920.720.419.919.919.919.820.220.320.520.721.021.421.621.721.721.822.122.422.823.023.023.625.825.4
Percentage of Assets7.27.97.87.66.56.67.37.36.46.47.56.46.47.77.77.87.87.97.97.87.97.98.18.28.18.28.28.28.38.38.58.68.58.58.78.78.88.98.98.99.19.19.20.00.00.09.40.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value2781278127812781278127812780278027802780277927792779277927782778277827792777277727782778277627762776277627752775277513881387138713871387138613861386138713861386138613861385138513851385138413821381
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest19.417.116.416.216.917.415.315.415.315.713.613.514.011.411.214.514.214.113.913.713.613.613.413.513.213.213.112.912.96.56.56.76.86.97.07.17.37.47.57.57.67.77.87.98.08.08.29.08.9
Percentage of Assets4.54.54.54.44.44.54.54.54.54.54.74.74.74.84.84.84.95.05.04.95.05.05.15.25.15.25.35.35.42.72.82.82.82.92.92.93.03.13.13.13.13.23.20.00.00.03.30.00.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value53116520195132650600498924941948605478754699746049452844431343311423594131734561338473316732587319403126630747302332958328759280342736726380254562596225288244762369022905222712156020802200841950818833181591760717154165661595115406150271368111847
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest371.4320.0302.7294.2303.3309.0268.1265.7258.6259.5221.7214.6217.5173.7166.2180.5172.6168.2163.5157.5153.1150.2146.0143.6137.0133.1129.2122.4118.7122.0119.1117.8115.4113.7112.0110.3109.0107.1105.0101.499.297.696.695.092.189.589.489.376.6
Percentage of Assets85.684.282.379.478.579.478.877.276.275.176.674.773.873.371.560.259.959.358.556.756.155.155.455.053.152.851.950.249.451.050.850.048.347.247.245.844.944.343.341.841.240.439.80.00.00.035.60.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value-44542.0-41826.0-40420.0-39680.0-38984.0-38992.0-36424.0-35839.0-34262.0-33638.0-30674.0-28858.0-28531.0-23800.0-22574.0-21470.0-20220.0-19377.0-18581.0-17654.0-16817.0-16223.0-15529.0-14948.0-13714.0-12886.0-12064.0-11193.0-10346.0-9577.0-8910.0-8135.0-7567.0-7113.0-6707.0-6479.0-6117.0-5726.0-5293.0-4942.0-4519.0-4207.0-4027.0-3850.0-3343.0-2889.0-2924.0-2993.0-1624.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-311.4-257.3-238.4-230.7-237.0-243.8-200.9-198.9-188.6-189.6-150.2-139.8-143.3-97.6-90.8-112.1-103.1-98.2-93.2-87.0-82.3-79.2-75.0-72.6-65.3-61.2-56.9-51.9-48.3-45.0-42.0-39.2-36.9-35.3-33.7-33.1-32.0-30.5-28.5-26.6-24.7-23.3-22.7-22.1-19.3-16.8-17.4-19.5-10.5
Percentage of Assets-71.8-67.7-64.8-62.3-61.3-62.7-59.1-57.8-55.5-54.9-51.9-48.7-48.6-41.2-39.1-37.4-35.8-34.7-33.3-31.4-30.2-29.1-28.4-27.8-25.3-24.2-22.9-21.3-20.1-18.8-17.9-16.6-15.4-14.6-14.2-13.8-13.2-12.6-11.7-11.0-10.3-9.7-9.30.00.00.0-6.90.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue

us-gaap:CommonStockValue


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value27812781278127812781278127802780278027802779277927792779277827782778277927772777277827782776277627762776277527752775277627742774277427742772277227722774277227722772277227702768
Percentage of CommonStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets4.54.54.54.44.44.54.54.54.54.54.74.74.74.84.84.84.95.05.04.95.05.05.15.25.15.25.35.35.45.55.65.75.75.75.95.96.06.16.16.26.36.46.46.6

Additional Paid In Capital

us-gaap:AdditionalPaidInCapital

us-gaap:AdditionalPaidInCapital


Additional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value44994874486448494135411245234505395439294449380337784473447644544431440644214406439343814417440043774351432142994269423342104189416241344113409740774056403140203999398839853968
Percentage of AdditionalPaidInCapital100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets7.27.97.87.66.56.67.37.36.46.47.56.46.47.77.77.87.87.97.97.87.97.98.18.28.18.28.28.28.38.38.58.68.58.58.78.78.88.98.98.99.19.19.29.4

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock us-gaap:AcceleratedShareRepurchasesDate

us-gaap:AdditionalPaidInCapitalCommonStock

unp:AcceleratedShareRepurchaseAgreement


Additional
Period End2021-06-30
Value400
Percentage of AdditionalPaidInCapitalCommonStock100.0
Percentage of Assets0.6
Percentage of Assets unp:AcceleratedShareRepurchaseAgreement0.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:RetainedEarningsAccumulatedDeficit


Retained
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value5311652019513265060049892494194860547875469974604945284443134331142359413173456133847331673258731940312663074730233295832875928034273672638025456259622528824476236902290522271215602080220084195081883318159176071715415027
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets85.684.282.379.478.579.478.877.276.275.176.674.773.873.371.560.259.959.358.556.756.155.155.455.053.152.851.950.249.451.050.850.048.347.247.245.844.944.343.341.841.240.439.835.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value-1551000000.0-1594000000.0-1593000000.0-1351000000.0-1372000000.0-1329000000.0-1356000000.0-1305000000.0-1298000000.0-1378000000.0-1415000000.0-1392000000.0-1428000000.0-1422000000.0-1141000000.0-1172000000.0-1221000000.0-1252000000.0-1272000000.0-1185000000.0-1198000000.0-1208000000.0-1195000000.0-1212000000.0-1208000000.0-1218000000.0-1210000000.0-708000000.0-714000000.0-734000000.0-750000000.0-1143000000.0-1148000000.0-1169000000.0-1186000000.0-1015000000.0-1061000000.0-1046000000.0-1054000000.0-732000000.0-719000000.0-728000000.0-734000000.0-654000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-2.5-2.6-2.6-2.1-2.2-2.1-2.2-2.1-2.1-2.2-2.4-2.3-2.4-2.5-2.0-2.0-2.2-2.2-2.3-2.1-2.2-2.2-2.2-2.3-2.2-2.3-2.3-1.3-1.4-1.4-1.5-2.3-2.3-2.4-2.5-2.2-2.3-2.3-2.3-1.6-1.6-1.7-1.7-1.6

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-1332000000.0-1356000000.0-1381000000.0-1092000000.0-1110000000.0-1128000000.0-1150000000.0-1089000000.0-1100000000.0-1182000000.0-1192000000.0-1198000000.0-1217000000.0-1235000000.0-1029000000.0-1066000000.0-1106000000.0-1121000000.0-1132000000.0-1068000000.0-1082000000.0-1095000000.0-1103000000.0-1116000000.0-1133000000.0-1149000000.0-1161000000.0-671000000.0-682000000.0-693000000.0-713000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax85.985.186.780.880.984.984.883.484.785.884.286.185.286.890.291.090.689.589.090.190.390.692.392.193.894.396.094.895.594.495.1
Percentage of Assets-2.1-2.2-2.2-1.7-1.7-1.8-1.9-1.8-1.8-1.9-2.0-2.0-2.1-2.1-1.8-1.9-2.0-2.0-2.0-1.9-1.9-2.0-2.0-2.1-2.1-2.2-2.2-1.3-1.3-1.4-1.4
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-219000000.0-238000000.0-212000000.0-259000000.0-262000000.0-201000000.0-206000000.0-216000000.0-198000000.0-196000000.0-223000000.0-194000000.0-211000000.0-187000000.0-112000000.0-106000000.0-115000000.0-131000000.0-140000000.0-117000000.0-116000000.0-113000000.0-92000000.0-96000000.0-75000000.0-69000000.0-49000000.0-37000000.0-32000000.0-41000000.0-37000000.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax14.114.913.319.219.115.115.216.615.314.215.813.914.813.29.89.09.410.511.09.99.79.47.77.96.25.74.05.24.55.64.9
Percentage of Assets-0.4-0.4-0.3-0.4-0.4-0.3-0.3-0.3-0.3-0.3-0.4-0.3-0.4-0.3-0.2-0.2-0.2-0.2-0.3-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1-0.1-0.1-0.1
Percentage of Assets us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Treasury Stock Value

us-gaap:TreasuryStockValue

us-gaap:TreasuryStockValue


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4454241826404203968038984389923642435839342623363830674288582853123800225742147020220193771858117654168171622315529149481371412886120641119310346957789108135756771136707647961175726529349424519420740272924
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets71.867.764.862.361.362.759.157.855.554.951.948.748.641.239.137.435.834.733.331.430.229.128.427.825.324.222.921.320.118.817.916.615.414.614.213.813.212.611.711.010.39.79.36.9

us-gaap:TreasuryStockValue us-gaap:AcceleratedShareRepurchasesDate

unp:AcceleratedShareRepurchaseAgreement


Treasury
Period End2021-06-302020-06-302020-03-312019-03-31
Value1600160016002000
Percentage of TreasuryStockValue3.64.14.15.9
Percentage of Assets2.62.52.63.3
Percentage of Assets unp:AcceleratedShareRepurchaseAgreement0.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2261195825471601223721552345236419411959231223411694152417951590137214041539169413461294138510251039656
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.142.149.534.856.344.245.045.937.139.140.242.131.028.834.229.826.327.530.133.227.728.831.423.324.816.5

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-566000000.0-505000000.0-595000000.0-664000000.0-610000000.0-807000000.0-928000000.0-897000000.0-826000000.0-784000000.0-977000000.0-809000000.0-939000000.0-800000000.0-767000000.0-984000000.0-1052000000.0-830000000.0-878000000.0-875000000.0-709000000.0-657000000.0-815000000.0-605000000.0-573000000.0-495000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.0-10.9-11.6-14.4-15.4-16.5-17.8-17.4-15.8-15.6-17.0-14.6-17.2-15.1-14.6-18.4-20.1-16.2-17.2-17.2-14.6-14.6-18.5-13.7-13.7-12.5

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1734.0-2073.0-2752.0-1043.0-110.0-997.0-1864.0-1235.0-1142.0-1405.0-1817.0-1326.0-827.0130-1095.0-677.0-114.0-796.0-1091.0-227.0-830.0-475.0-842.0-379.0-902.0-258.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-33.8-44.6-53.5-22.7-2.8-20.4-35.8-24.0-21.8-28.0-31.6-23.9-15.12.5-20.9-12.7-2.2-15.6-21.4-4.5-17.1-10.6-19.1-8.6-21.6-6.5

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-39.0-620.0-800.0-106.01517351-447.0232-27.0-230.0-482.0206556-227.0
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.8-13.3-15.6-2.338.27.2-8.64.5-0.5-4.6-8.43.710.5-4.1

Increase Decrease In Accounts Receivable

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInAccountsReceivable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value56105-60.0177-281.074-55.0-159.0137-83.0-37.0158637865717821-93.0-22.018-1.0-152.0-5.0-51.0-47.0-24.0-31.0124128-55.01.0-44.0181-252.0278-22.0-74.0-23.0-3.015291-113.04732552
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Other Operating Capital Net

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet

us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-3.0131-371.0-128.0-55.0644.0-61.0-94.05321-65.036-339.036734-25.0-94.051755349-149.0128-63.0-32.0288-46.0-14.057766787-4.08897-8.0-17.015549123-72.02930.0201-36.0
Percentage of IncreaseDecreaseInOtherOperatingCapitalNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2261195825471601223721552345236419411959231223411694152417951590137214041539169413461294138510251039656
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax44.142.149.534.856.344.245.045.937.139.140.242.131.028.834.229.826.327.530.133.227.728.831.423.324.816.5

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value1798134113801363113214741403155515701391155415931509131072781194116810721144113197997911171300120411511431137012911088117411511106957103610421002863964904785639775778711516549514465362
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.028.826.829.728.530.226.930.230.027.827.028.728.423.9133.522.122.220.922.121.920.520.321.423.422.220.523.322.221.519.320.920.720.218.119.719.519.216.918.917.716.214.217.617.617.013.014.614.014.110.6

us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1798134113801363113214741403155515701391155415931509131072781194116810721144113197997911171300120411511431137012911088117411511106957103610421002863964904785639775778711516
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.028.826.829.728.530.226.930.230.027.827.028.728.423.9133.522.122.220.922.121.920.520.321.423.422.220.523.322.221.519.320.920.720.218.119.719.519.216.918.917.716.214.217.617.617.013.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value22201617182218242427192626252030272621202417192526282128283521262625192524251722212217
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-566000000.0-505000000.0-595000000.0-664000000.0-610000000.0-807000000.0-928000000.0-897000000.0-826000000.0-784000000.0-977000000.0-809000000.0-939000000.0-800000000.0-767000000.0-984000000.0-1052000000.0-830000000.0-878000000.0-875000000.0-709000000.0-657000000.0-815000000.0-605000000.0-573000000.0-495000000.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-11.0-10.9-11.6-14.4-15.4-16.5-17.8-17.4-15.8-15.6-17.0-14.6-17.2-15.1-14.6-18.4-20.1-16.2-17.2-17.2-14.6-14.6-18.5-13.7-13.7-12.5

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value65453663369579280795893580875210098147049108597907788119011014903687132711161106110111201158117589386190594878286210601012804958891725602796630595461
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1734.0-2073.0-2752.0-1043.0-110.0-997.0-1864.0-1235.0-1142.0-1405.0-1817.0-1326.0-827.0130-1095.0-677.0-114.0-796.0-1091.0-227.0-830.0-475.0-842.0-379.0-902.0-258.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-33.8-44.6-53.5-22.7-2.8-20.4-35.8-24.0-21.8-28.0-31.6-23.9-15.12.5-20.9-12.7-2.2-15.6-21.4-4.5-17.1-10.6-19.1-8.6-21.6-6.5

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


Proceeds
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value0.00.0100829960.09940.02992-100.0100518617064501099986200100455150127810850.0109711460.06939009954990.00.09440.00.06950.00.04860.00.0400
Percentage of ProceedsFromIssuanceOfLongTermDebt0.00.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0100.00.00.0100.00.00.0100.00.00.0100.00.00.0100.0

Payments Of Dividends

us-gaap:PaymentsOfDividends

us-gaap:PaymentsOfDividends


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-302015-12-312015-09-302015-06-302015-03-302015-01-022015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-03-31
Value700650652655659660673677622626583591557568522480488492497457460465467467476479484438922446410413363365322323323286285286289230233188186135
Percentage of PaymentsOfDividends100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments For Repurchase Of Common Stock

us-gaap:PaymentsForRepurchaseOfCommonStock

us-gaap:PaymentsForRepurchaseOfCommonStock


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value273813477494000.02556642153364229871201331552711661131127185275910058485467066701190813792913862806644786599459374295
Percentage of PaymentsForRepurchaseOfCommonStock100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value2.5622.672.5692.7513.1993.4523.5023.7323.8514.2025.175.2725.7075.9765.636.516.686.8426.1626.5446.7956.9715.5715.7225.7755.95.3875.6245.8813.9063.7223.8713.9864.5144.2890.0048020.0061740.007042
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value144.27143.79132.49131.01127.13125.69113.38112.07111.21109.5992.0691.8591.1790.583.3781.1280.3680.1473.1371.5970.2869.6466.6965.865.4865.1453.5652.5551.8892.8980.1478.8978.0174.8965.6863.7360.752.16
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0227000.0000287000.00016000.0308000.0000348000.0000461000.0000503000.0000339000.000228000.0228000.0000304000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.00.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value5000.0279000.010000.01000.00304000.03000.02000.05000.0374000.07000.02000.01000.0532000.013000.000562000.01000.04000.012000.0819000.0002000.0519000.07000.00453000.0411000.0001000.0420000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod0.0122.90.00.00.0105.90.00.031.2121.40.00.00.0152.90.00.00.0121.90.00.00.0162.80.00.00.0153.10.00.0198.7180.30.00.00.0138.20.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


Deferred
Period End2020-12-312019-12-312019-06-302018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value10685332350152310371190118181312551457
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312020-09-302019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312011-09-302011-06-302010-12-312009-12-312008-12-312007-12-31
Value7474641741791259415159115107119149866126161
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:AccessorialRevenues

unp:AccessorialRevenues


Accessorial
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value176161139114103117126132123133129126126121123121108106
Percentage of AccessorialRevenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:AggregateGrantDateFairValueOfStockOptionsVested

unp:AggregateGrantDateFairValueOfStockOptionsVested


Aggregate
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-30
Value0.0140.00.0140.00.0150.00.0180.0
Percentage of AggregateGrantDateFairValueOfStockOptionsVested0.0100.00.00.0100.00.00.0100.00.00.0100.00.0

unp:AllowableDebtPerDebtToEarningsBeforeInterestTaxesDepreciationAndAmortizationCoverageRatioAsDefinedFacility us-gaap:LongtermDebtType

unp:AllowableDebtPerDebtToEarningsBeforeInterestTaxesDepreciationAndAmortizationCoverageRatioAsDefinedFacility

us-gaap:LineOfCredit


Allowable
Period End2021-06-302021-03-31
Value270036200
Percentage of AllowableDebtPerDebtToEarningsBeforeInterestTaxesDepreciationAndAmortizationCoverageRatioAsDefinedFacility100.0100.0

unp:DeferredIncomeTaxesAndUnrecognizedTaxBenefits

unp:DeferredIncomeTaxesAndUnrecognizedTaxBenefits


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7454131568091269881061032610892112-5581.021615314531217018016941011812910860613480752652622871722393146554
Percentage of DeferredIncomeTaxesAndUnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:EquipmentAndOtherRents

unp:EquipmentAndOtherRents


Equipment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value20021222021721122723023626025826927226526664275273276280282286289305302312311296310316312311309302313302300299296289293283302278292282290
Percentage of EquipmentAndOtherRents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:LossContingencyAccrualCarryingValueChangeInPriorYears us-gaap:LossContingenciesByNatureOfContingency

unp:LossContingencyAccrualCarryingValueChangeInPriorYears

unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value-4.0211.00.0-6.02.06.0-6.0-9.0-2.0-1.02.0-6.0-11.0-1.0-3.0-7.04.01.0-5.0-15.0-10.00.0-2.05.0-6.0-11.06.020-6.0-15.0-1.0-14.0-8.0-18.0-4.0-39.03.0-20.0-12.0-22.0-17.0
Percentage of LossContingencyAccrualCarryingValueChangeInPriorYears100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:NonoperatingEnvironmentalCostsAndOther

unp:NonoperatingEnvironmentalCostsAndOther


Nonoperating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.0-2.0-1.09.0-4.03.0237.0-4.0-27.09.04.04.0-1.06.05.0-2.06.0-9.00.0126.04.07.02.06.07.0119.0-9.0-1.016-3.01.0-19.05.09.06.0-5.09.0-2.07.0230.05.08.0
Percentage of NonoperatingEnvironmentalCostsAndOther0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

unp:PreviousBoardOfDirectorsRemainingDebtIssuance

unp:PreviousBoardOfDirectorsRemainingDebtIssuance


Previous
Period End2021-02-092018-07-262018-02-12
Value22500.01550
Percentage of PreviousBoardOfDirectorsRemainingDebtIssuance100.00.0100.0

unp:PurchasedServicesAndMaterial

unp:PurchasedServicesAndMaterial


Purchased
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value478490492508441521531574573576582632630599585615597566553566570569589589600643665650636607585588585557533542542526508506516475467465472432
Percentage of PurchasedServicesAndMaterial100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:ReceivablesSecuritizationFacilityInterestExpenseCost

unp:ReceivablesSecuritizationFacilityInterestExpenseCost


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value1.01.01.02.01.03.03.04.03.04.04.03.04.04.02.01.02.01.02.02.01.02.01.01.02.01.01.01.01.01.02.01.01.01.00.01.01.01.01.01.01.01.0
Percentage of ReceivablesSecuritizationFacilityInterestExpenseCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearned us-gaap:AwardType

unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearned

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-31
Value0150000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearned0.0100.0

unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedWeightedAverageGrantDateFairValue us-gaap:AwardType

unp:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedWeightedAverageGrantDateFairValue

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-31
Value0128.783.47
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsUnearnedWeightedAverageGrantDateFairValue0.0100.0100.0

unp:SubsidiaryRevenue

unp:SubsidiaryRevenue


Subsidiary
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value180177186193150214215223219223225228211217225223222215
Percentage of SubsidiaryRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:TreasurySharesRepurchasedForEmployeePayrollTaxes

unp:TreasurySharesRepurchasedForEmployeePayrollTaxes


Treasury
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value1.06.08.04.08.03.07.0226.05.08.03.02.0
Percentage of TreasurySharesRepurchasedForEmployeePayrollTaxes100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfRetentionSharesAndUnits

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfRetentionSharesAndUnits


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value800000.0800000.0100000.0900000.0800000.01000000.0100000.01400000.01200000.01400000.0100000.01500000.01400000.01400000.0100000.01400000.01300000.01500000.0100000.01600000.01300000.01400000.0200000.01600000.01400000.01700000.0100000.01900000.01700000.0900000.0200000.01200000.01000000.01300000.0100000.01600000.02000000.01400000.0100000.01600000.02600000.01400000.0100000.01400000.01300000.01200000.0
Percentage of WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfRetentionSharesAndUnits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfStockOptions

unp:WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfStockOptions


Weighted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value800000.0800000.00900000.0700000.0900000.0-100000.01200000.01300000.01300000.002000000.01800000.01800000.0100000.01700000.01800000.01800000.0100000.01600000.01400000.01300000.0-100000.01300000.01600000.01800000.001800000.01800000.01200000.0-100000.01300000.01300000.01400000.0-100000.01600000.01400000.02200000.0-100000.02300000.01400000.03100000.0100000.03300000.03400000.03000000.0
Percentage of WeightedAverageNumberOfSharesOutstandingDilutiveEffectOfStockOptions100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses

us-gaap:AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value31122127131515202210.0222620161413162.01814331910.09.0
Percentage of AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingenciesPayments1

us-gaap:AccrualForEnvironmentalLossContingenciesPayments1


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value151123201116141418171615121419161511141714172110.0
Percentage of AccrualForEnvironmentalLossContingenciesPayments1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalExpendituresIncurredButNotYetPaid

us-gaap:CapitalExpendituresIncurredButNotYetPaid


Capital
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value5.0991411-28.01697315-13.0149461867742461412941179.0-3.0100-61.06.09.014682-17.00.010923-9.01210716-9.0111183116277359-5.01160
Percentage of CapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtConversionConvertedInstrumentAmount1

us-gaap:DebtConversionConvertedInstrumentAmount1


Debt
Period End2020-12-312020-09-302019-12-312011-06-232010-07-14
Value104710471842750376
Percentage of DebtConversionConvertedInstrumentAmount1100.0100.0100.0100.0100.0

us-gaap:DebtConversionConvertedInstrumentAmount1 us-gaap:DebtInstrument

unp:NotesDue20362.891Percent


Debt
Period End2021-04-06
Value701
Percentage of DebtConversionConvertedInstrumentAmount10.0

unp:NotesDue20713.799Percent


Debt
Period End2021-04-06
Value1000
Percentage of DebtConversionConvertedInstrumentAmount10.0

us-gaap:DebtConversionConvertedInstrumentAmount1 us-gaap:DebtInstrument, us-gaap:SubsequentEventType

unp:NotesDue20362.891Percent, us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value701
Percentage of DebtConversionConvertedInstrumentAmount10.0

unp:NotesDue20713.799Percent, us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value1000
Percentage of DebtConversionConvertedInstrumentAmount10.0

us-gaap:DebtConversionOriginalDebtAmount1

us-gaap:DebtConversionOriginalDebtAmount1


Debt
Period End2021-04-062013-08-212011-06-232010-07-14
Value1700-1170.0857376
Percentage of DebtConversionOriginalDebtAmount1100.0100.0100.0100.0

us-gaap:DebtConversionOriginalDebtAmount1 us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value1700
Percentage of DebtConversionOriginalDebtAmount1100.0

us-gaap:DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction

us-gaap:DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction


Debt
Period End2021-04-062020-09-302019-12-312011-06-232010-07-14
Value129.0156.02.0
Percentage of DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction100.0100.0100.0100.0100.0

us-gaap:DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Debt
Period End2021-04-06
Value12
Percentage of DebtIssuanceCostsIncurredDuringNoncashOrPartialNoncashTransaction100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-1.0-2.0-2.0-1.0-2.0-2.0-3.0-1.0-2.0-1.0-3.0-2.0-3.0-2.0-2.0-2.0-2.0-3.0-3.0-2.0-3.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value-35.0-36.0-25.0-27.0-24.0-28.0-19.0-16.0-16.0-16.0-24.0-24.0-22.0-23.0-22.0-20.0-19.0-20.0-21.0-21.0-21.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses3500.01800.01250.02700.01200.01400.0633.31600.0800.01600.0800.01200.0733.31150.01100.01000.0950.0666.7700.01050.0700.0

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-312018-09-302018-06-302016-12-312016-09-302016-06-30
Value-3000000.0-4000000.0-4000000.0-3000000.0-4000000.0-3000000.0-3000000.0-4000000.0001000000.0-2000000.0-2000000.0-3000000.0
Percentage of DefinedBenefitPlanAmortizationOfPriorServiceCostCredit100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value686771717070696868686868686869666666666767
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value1.01.01.01.02.01.01.03.02.03.02.03.02.03.02.03.02.03.03.02.03.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value272635333534404040403736363636353635363636
Percentage of DefinedBenefitPlanInterestCost2700.02600.03500.03300.01750.03400.04000.01333.32000.01333.31850.01200.01800.01200.01800.01166.71800.01166.71200.01800.01200.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-09-302020-06-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value0.0-1.0-1.01.01.00.05.04.06.05.07.05.06.05.05.06.04.02.03.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost0.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value24258.08.015193.01110.010.01918161815771112111111
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost0.0-2500.00.0-800.01500.00.0300.00.0200.0250.0316.7360.0228.6360.0250.01540.0220.0200.0275.0550.0366.7

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-30
Value1.00.00.01.00.00.01.01.00.01.01.00.01.00.00.0
Percentage of DefinedBenefitPlanServiceCost100.00.00.0100.00.00.0100.0100.00.0100.0100.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value303019192627132322222626262724212223202121
Percentage of DefinedBenefitPlanServiceCost3000.00.00.00.02600.00.00.00.02200.00.02600.00.02600.00.02400.00.02200.00.00.00.00.0

us-gaap:Depreciation

us-gaap:Depreciation


Depreciation
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value550549557555551547559557551549555547546543532528525520520512504502517507497491489481470464458447438434453447433427413408401395380372368367
Percentage of Depreciation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCash

us-gaap:DividendsCash


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7016486546556596606736776226265835915575685224804884924974574604654674764794844444464104143623653213232035-284.0-858.0287289230233186187163166137
Percentage of DividendsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCash us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value7016486546556596606736776226265835915575685224804884924974574604654674764794844444464104143623653213232035-284.0-858.0287289230233186187163166137
Percentage of DividendsCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions

us-gaap:EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions


Employee
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value2.04.0113.0113.06.0347.04.08.04.02.0
Percentage of EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquitySecuritiesFvNiGainLoss

us-gaap:EquitySecuritiesFvNiGainLoss


Equity
Period End2021-06-30
Value20
Percentage of EquitySecuritiesFvNiGainLoss100.0

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities

us-gaap:ExcessTaxBenefitFromShareBasedCompensationOperatingActivities


Excess
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-31
Value2.0154.0162.0334.03.06.0392.07.04.015154.03.0227.05.06.010.0
Percentage of ExcessTaxBenefitFromShareBasedCompensationOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestExpense


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value6.07.07.07.08.09.08.09.0
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseInterestPaymentOnLiability


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value4.010.02.0135.010.03.017
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeasePrincipalPayments

us-gaap:FinanceLeasePrincipalPayments


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1136254110.0232158
Percentage of FinanceLeasePrincipalPayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinanceLeaseRightOfUseAssetAmortization


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1616171718181818
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FuelCosts

us-gaap:FuelCosts


Fuel
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value497411332301247434512504560531640659643589547450434460431392346320424484541564813882923921905866863900920880882926935916904826687608608583
Percentage of FuelCosts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets

us-gaap:GainLossOnDispositionOfAssets


Gain
Period End2021-06-302020-12-312020-09-302020-06-302017-09-302017-06-302017-03-312016-06-302016-03-312015-06-30
Value500.00.069570.0265017113
Percentage of GainLossOnDispositionOfAssets100.00.00.0100.0100.00.0100.0100.0100.0100.0

us-gaap:GainLossOnDispositionOfAssets1

us-gaap:GainLossOnDispositionOfAssets1


Gain
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-30
Value639.0183.083116.04.06.04.0116.07.06.03.06311343.03.063256.010.01217.0535.07.0
Percentage of GainLossOnDispositionOfAssets1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability

us-gaap:IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability


Income
Period End2021-06-302019-06-302018-06-302017-09-30
Value-43.0-21.0-31.033
Percentage of IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value140-67.0142-18.0-29.0-168.078-72.074-259.05080124-379.022516127-186.01534196-58.0-248.0-80.0207-155.0-70.05414984122-128.034135-238.0244.0252610820754187-261.0117200
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccruedTaxesPayable

us-gaap:IncreaseDecreaseInAccruedTaxesPayable


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-03-31
Value-217.0339155-454.0180289-114.0-61.0-294.02405381-81.0225-139.050-396.0434-120.0133-310.0671-460.0104-226.0497-384.061-376.0386217
Percentage of IncreaseDecreaseInAccruedTaxesPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInMaterialsAndSupplies

us-gaap:IncreaseDecreaseInMaterialsAndSupplies


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value2921-11.0-19.0-24.0-59.0-20.0-4.0-5.038-47.017-36.0597.016-34.0432730-56.0-20.0-5.0-21.01832-24.0-3.03452-30.029-1.0-5.0-20.098-100.0687.0169
Percentage of IncreaseDecreaseInMaterialsAndSupplies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value2.01.027-29.037-1.0-99.0-73.02857-41.0-42.0-5.0112-67.0-56.0-18.0132-37.0-41.01937-83.0-15.07075189-18.06.093-93.0-18.0231437170-157.058-42.0-231.0197-102.0
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestAndOtherIncome

us-gaap:InterestAndOtherIncome


Interest
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value1.01.02.03.06.010.06.09.010.05.04.04.04.02.03.03.02.02.01.01.01.0
Percentage of InterestAndOtherIncome100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LaborAndRelatedExpense

us-gaap:LaborAndRelatedExpense


Labor
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value102210261021100890510591049113411451205128012621241127312321298119712571186119111601213122012671305136912891287124612541210119611851216113511881151121111551193116611671112109210511059
Percentage of LaborAndRelatedExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost

us-gaap:LeaseCost


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value132939293139102111120
Percentage of LeaseCost100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualPayments us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualPayments

unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value1516171121153210.010.0212216132120151822201229132315
Percentage of LossContingencyAccrualPayments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualProvision us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualProvision

unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value2718201816181923181821181619192019192116172124222023169-30.0-66.023157-23.0-74.027210
Percentage of LossContingencyAccrualProvision100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent

us-gaap:NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-7.0-6.0-13.0-12.0-11.0-8.0-9.0-12.0-8.0-8.0-2.0-3.0-4.0-4.0-4.061
Percentage of NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseCost

us-gaap:OperatingLeaseCost


Operating
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value706869758593
Percentage of OperatingLeaseCost100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasePayments

us-gaap:OperatingLeasePayments


Operating
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10.06142210726040215
Percentage of OperatingLeasePayments100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-18.027-46.0-3.060-7.0511824-24.029-17.0255.0-12.0-17.0-6.0220.03.026-5.0217.024-8.0-5.0-9.0-6.0-5.011-5.0-1.0-5.0-9.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value1.01.01.00.0-1.0-2.0610.0223.00.00.01.0-1.0-3.0-1.03.0-1.0-1.00.05.0-1.00.01.04.00.00.00.0-10.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax-5.63.7-2.2-0.0-1.728.6119.60.091.7-12.50.0-0.04.0-20.025.05.9-50.0-4.50.00.019.220.00.014.316.7-0.0-0.0-0.0166.7

us-gaap:AccumulatedForeignCurrencyAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-31
Value-19.026-47.0-3.061-5.0-10.0182.0-27.029-17.0246.0-9.0-16.0-9.0231.03.021-4.0216.0205.0-9.04.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax105.696.3102.2100.0101.771.4-19.6100.08.3112.5100.0100.096.0120.075.094.1150.0104.50.0100.080.880.0100.085.783.3-100.0100.0-66.7

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax

us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value-24.0-25.0289-18.0-18.0-22.061-11.0-82.0-10.0-6.0-19.0-18.0-19.0-37.0-40.0-15.0-11.064-14.0-13.0-8.0-13.0-17.0-16.0-12.0490-11.0-11.0-20.0-388.0-17.0-17.0-14.0176-38.00.07.03011.00.0
Percentage of OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossTax

us-gaap:OtherComprehensiveIncomeLossTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value10.08.0-93.06.05.07.0-20.04.0274.02.07.07.06.02.0271814-57.07.06.0-5.09.03.0-7.03.0-311.03.0125.02363.013125528-9.08.0197-7.05.04.057-1.00.0
Percentage of OtherComprehensiveIncomeLossTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:OtherCostAndExpenseOperating

us-gaap:OtherCostAndExpenseOperating


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value284320513299235298231277247305221287248266239230219260233271244249235205225259228242228226188205219237182200190216191207196188173178122246
Percentage of OtherCostAndExpenseOperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentOfFinancingAndStockIssuanceCosts

us-gaap:PaymentOfFinancingAndStockIssuanceCosts


Payment
Period End2021-04-062020-12-312020-09-302019-12-312011-06-232010-07-14
Value25731931937326796
Percentage of PaymentOfFinancingAndStockIssuanceCosts100.0100.0100.0100.0100.0100.0

us-gaap:PaymentOfFinancingAndStockIssuanceCosts us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Payment
Period End2021-04-06
Value257
Percentage of PaymentOfFinancingAndStockIssuanceCosts100.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsForProceedsFromOtherInvestingActivities


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value20-14.0-3.0-19.0-83.08.0-14.00.03946-8.03.02121-17.0-12.0-4.019-44.0-16.03.014-41.0182773-117.08.011139-31.0-13.01635-70.0-51.05739-23.05.03.06641-11.0-3.046
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtRestructuringCosts

us-gaap:PaymentsOfDebtRestructuringCosts


Payments
Period End2020-12-312014-12-312013-12-312012-12-312012-09-302011-12-312011-09-302010-12-312010-09-30
Value1.00.01.00.00.00.00.00.098
Percentage of PaymentsOfDebtRestructuringCosts100.00.0100.00.00.00.00.00.0100.0

us-gaap:PaymentsToAcquireShortTermInvestments

us-gaap:PaymentsToAcquireShortTermInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value0.02430315.0705.010.010.0900.0300.060300.00.0900.0250
Percentage of PaymentsToAcquireShortTermInvestments0.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.00.0100.00.0100.0

us-gaap:ProceedsFromIssuanceOfCommercialPaper

us-gaap:ProceedsFromIssuanceOfCommercialPaper


Proceeds
Period End2021-06-302021-03-312020-12-312014-09-302014-06-302013-09-302013-06-302012-09-302012-06-30
Value6453002000.00.00.00.00.050
Percentage of ProceedsFromIssuanceOfCommercialPaper100.0100.0100.00.00.00.00.00.0100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-20.0-14.0-4.02.06.0-71.014-5.0-6.0-23.0-3.09.0-30.0-24.0-6.0-3.0-4.0-33.09.00.0-6.0-44.0-8.05.0-3.0-20.0-13.0-23.056-23.09.02.011-34.0-6.011-2.0-2.0235.03446-67.036118.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromRepaymentsOfCommercialPaper


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value140-15.0-125.0-1.00.0-1.0-1.0-476.0172299-1.0-1.0-440.0636
Percentage of ProceedsFromRepaymentsOfCommercialPaper100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments

us-gaap:ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value242435315.07010.01515900.0300.060300.00.060270
Percentage of ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.00.0100.0100.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value84173012998.011331614248.0191216825317131770296020139327919132721352517252517135721191122141912
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromStockOptionsExercised

us-gaap:ProceedsFromStockOptionsExercised


Proceeds
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value4.03029183310.02672261926118.0
Percentage of ProceedsFromStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2526-288.01817200.01112136.019191936371414-65.013131312171716-426.0-11.01110.0388161616-176.037
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustmentIncludingPortionAttributableToNoncontrollingInterest


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value2526-288.01817200.01112136.019191936371414-65.013131312171716-490.0111110.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0115.0-100.0100.0100.0

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty

unp:TtxCompany


Related
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value9596939888969510010810510510411010510410097869393929094969690
Percentage of RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RentalIncomeNonoperating

us-gaap:RentalIncomeNonoperating


Rental
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value34333329303128343329313330282689263725232325252522242425232422262137212121202120192023202120
Percentage of RentalIncomeNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfCommercialPaper

us-gaap:RepaymentsOfCommercialPaper


Repayments
Period End2021-06-302021-03-312020-12-312014-09-302014-06-302013-09-302013-06-302012-09-302012-06-30
Value5053154000.00.00.00.00.050
Percentage of RepaymentsOfCommercialPaper100.0100.0100.00.00.00.00.00.0100.0

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations

us-gaap:RepaymentsOfDebtAndCapitalLeaseObligations


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value644471221624653051753844560-71.05121381157369272601845323216728212040633333238238402423785683508571217250257448747948
Percentage of RepaymentsOfDebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RestrictedStockExpense

us-gaap:RestrictedStockExpense


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value18161313141816192022152122211624222218152013162021241723222917212021152020201317171713151613
Percentage of RestrictedStockExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability


Right
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value394.05.0455635189.0
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value15000.013000.041000.020000.03000.032000.012000.04000.047000.028000.023000.010000.060000.05000.051000.0018000.034000.018000.0018000.047000.057000.03000.014000.013000.010000.025000.061000.04000.01000.01000.054000.0-22000.0-5.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value23000.016000.024000.032000.014000.022000.015000.023000.027000.040000.046000.017000.034000.024000.078000.012000.028000.039000.017000.017000.040000.074000.05000.021000.041000.023000.04000.029000.057000.010000.03000.011000.072000.0-24000.0-15.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod153.3123.158.5160.0466.768.8125.0575.057.4142.9200.0170.056.7480.0152.90.0155.6114.794.40.0222.2157.48.8700.0292.9176.940.0116.093.4250.0300.01100.0133.3109.1300.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value-2.09185.8710.624.140.27138.712.230.531.52109.393.742.318.8178.2-0.8400.2791.93-1.5600.1891.810.4-0.63.8872.980.51-0.01-56.75117.610.671.170.9695.890.97
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value4.65156.980.893.952.18134.811.51.62-0.54109.511.230.793.2997.761.190.361.8990.57-0.46-0.3-2.5491.720.531.623.4167.31-0.060.72-51.53108.690.192.883.2278.521.6
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue-222.584.58.495.4807.497.267.3305.7-35.5100.132.934.237.3125.0-141.70.0700.098.529.50.0-1411.199.95.1-270.087.992.2-11.8-7200.090.892.428.4246.2335.481.9164.9

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0204.4510.600166.6300-0.09151.33000117.8000101.3800070.09000117.4200-83.05166.11000125.140
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.0100.00.00.0100.00.00.0100.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.00.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0.32204.5500.020185.970.10.010.12161.560.340.060.03125.080.2100107.30.010.070.1775.520-0.01-0.03122.830.160.01-87.15175.120.0200.02132.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0111.60.00.0-133.3106.80.00.00.0106.20.00.00.0105.80.00.00.0107.70.00.00.0104.60.00.0104.9105.40.00.00.0105.50.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0140000.0003000.0336000.0002000.0267000.01000.00094000.0000255000.0000530000.0000580000.000330000.0331000.000802000.0-401000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0100.00.00.0100.0100.00.00.0100.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.0100.0100.00.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value1000.0409000.011000.023000.03000.0608000.018000.06000.08000.0419000.038000.09000.06000.0611000.093000.02000.08000.0791000.07000.03000.011000.0778000.021000.04000.015000.0894000.06000.03000.0539000.0532000.06000.02000.01696000.0-846000.0-2.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod0.0292.10.00.0100.0181.00.00.0400.0156.93800.00.00.0650.00.00.00.0310.20.00.00.0146.80.00.00.0154.10.00.0163.3160.70.00.0211.5211.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0129.60.18-0.120.33102.580.0800.2270.57-0.2300112.1900083.0600062.5700054.3800-44.9389.8700058.330
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.00.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value0.06107.820.850.760.2475.89-0.56-0.28-0.41120.910.460.270.1287.942.810.040.1567.910.170.110.1457.280.550.110.0646.940.180.01-30.9962.130.10.10.0447.460
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue0.083.2472.2-633.372.774.0-700.00.0-186.4171.3-200.00.00.078.40.00.00.081.80.00.00.091.50.00.00.086.30.00.069.069.10.00.00.081.40.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value01.902.07900.0210000.0220000.0230000.0230000.0290000.0180000.0210000.0210000.02100
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate0.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value028.3023.16600.2340000.2270000.2110000.2170000.2320000.2340000.30000.3620000.36800
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate0.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate

unp:PerformanceRetentionAwards


Share
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-30
Value1.38600.0140000.0250000.0230000.0150000.0090000.0080000.0070000.0040
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate100.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.0

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value00.401.48500.0150000.0250000.0260000.020000.0130000.0130000.0160000.0080000.00800
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate0.00.00.0107.10.0107.10.00.00.0100.00.00.00.0113.00.00.00.0133.30.00.00.0144.40.00.00.0162.50.00.00.0228.60.00.00.0200.00.00.00.00.00.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue


Share
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-30
Value9.02340174810.02613830143310.07.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-31
Value19000.034000.051000.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-31
Value15.83136.241.39
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-31
Value0387000.00
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod0.0100.00.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value039.9700032.200030.3700021.700018.1900011.3600022.300-20.1740.3500034.9800031.2900
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue0.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.00.00.00.0100.00.00.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-31
Value-0.13122.76-1.15
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice

us-gaap:StockOption


Share
Period End2021-06-302021-03-312020-12-31
Value0204.450
Percentage of ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice0.0100.00.0

us-gaap:ShortTermLeaseCost

us-gaap:ShortTermLeaseCost


Short
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value240.60.60.01.50.10.20.2
Percentage of ShortTermLeaseCost100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesShareBasedCompensation

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value0300000.00-100000.00300000.0000300000.0-100000.000400000.0000400000.0000600000.000-100000.0400000.0000400000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation0.0100.00.0100.00.0100.00.00.00.0100.0100.00.00.0100.00.00.00.0100.00.00.00.0100.00.00.0100.0100.00.00.00.0100.0

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value100000.0200000.0100000.0400000.0100000.0500000.0200000.0100000.0300000.01100000.0200000.0200000.0200000.0500000.0400000.0100000.0100000.0500000.0300000.0200000.0200000.0400000.0100000.00200000.0500000.0200000.0200000.01400000.01200000.0
Percentage of StockIssuedDuringPeriodSharesShareBasedCompensation0.066.70.0-400.00.0166.70.00.00.0366.7-200.00.00.0125.00.00.00.0125.00.00.00.066.70.00.0-200.0125.00.00.00.0300.0

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised us-gaap:AwardType

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockOption


Stock
Period End2021-06-302021-03-312020-12-31
Value89000.0252000.0131000.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value246.0241831-22.0333040262139372.0203231-7.0282619-15.0222732163139734032343710.0353744264226597248583127
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value2510.0154.023-11.0182325-20.0182525-3.0222325-15.0151312-36.0172326302230362321272821162021251121113.01.06.019-9.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation104.2166.762.522.274.250.054.576.762.5-76.985.764.167.6-150.0110.071.980.6214.353.650.063.2240.077.385.281.2187.571.076.949.357.565.679.475.7210.045.754.147.796.226.280.818.64.22.110.361.3-33.3

us-gaap:CommonStock


Stock
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.00.00.01.00.00.00.01.00.00.00.01.00.00.0-1.02.00.0-1.00.02.00.00.00.01.00.00.00.01.00.00.00.01.00.00.0-1.01.00.00.00.01.00.00.00.01.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.00.00.0-4.50.00.00.03.80.00.00.050.00.00.0-3.2-28.60.0-3.80.0-13.30.00.00.06.20.00.00.02.50.00.00.010.00.00.0-2.33.80.00.00.01.40.00.00.03.7

us-gaap:TreasuryStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-1.0-4.09.0148.0-12.0157.015453.014124.0-2.09.07.06.013147.0194.06.0-15.09.09.03716117.09.0-12.01917240.0315.0486847521235
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation-4.2-66.737.577.825.854.545.523.337.5173.114.335.932.4200.0-10.028.122.6-85.746.453.836.8-126.714.818.8-93.829.023.150.740.034.420.624.3-120.054.345.954.50.073.819.281.494.497.989.738.7129.6

us-gaap:StockOptionPlanExpense

us-gaap:StockOptionPlanExpense


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value4.04.03.04.04.04.02.05.04.05.04.05.04.04.04.06.05.04.03.05.04.04.03.05.05.04.04.05.06.06.04.05.06.04.04.05.04.05.04.05.04.05.03.05.05.04.0
Percentage of StockOptionPlanExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare

us-gaap:TreasuryStockAcquiredAverageCostPerShare


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302009-03-31
Value222.46209.5198.0798.870178.66167.32163.3171.24165.79153.04151.94142.74132.84119.37106.69109.1106.5597.693.6385.6676.4988.1989.65104.62117.28113.77102.5496.84178.85159.36156.77151.42136.58121.81122.13110.02110.6498.1691.45100.7594.189.3973.1971.7400000
Percentage of TreasuryStockAcquiredAverageCostPerShare100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.0

us-gaap:TreasuryStockAcquiredAverageCostPerShare us-gaap:AcceleratedShareRepurchasesDate

unp:AcceleratedShareRepurchaseAgreement


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-31
Value221.94000155.860
Percentage of TreasuryStockAcquiredAverageCostPerShare99.80.00.00.087.20.0

us-gaap:TreasuryStockSharesAcquired us-gaap:StatementEquityComponents

us-gaap:TreasuryStockSharesAcquired

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value126.73.84.028-14.366-9.53.818122.2339.39.3117.87.59.79.17.09.36.6138.06.97.78.38.47.6
Percentage of TreasuryStockSharesAcquired100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockSharesAcquired us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Treasury
Period End2021-07-212021-04-212021-02-042020-10-212020-02-062019-10-162019-02-072018-04-252018-02-082017-10-252017-04-262017-02-022016-02-042015-10-222015-07-232015-04-22
Value1.11.12.10.4262.71.43.42.82.63.152.12.753.72.02.32.3
Percentage of TreasuryStockSharesAcquired0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStockValueAcquiredCostMethod

us-gaap:TreasuryStockValueAcquiredCostMethod


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312015-02-062014-12-312014-10-222014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-03-31
Value311514028004000.0295660010566393509190034154631230120012009008029009006007136001200800807327880230856806683786575463394247248
Percentage of TreasuryStockValueAcquiredCostMethod100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:AcceleratedShareRepurchasesDate

unp:AcceleratedShareRepurchaseAgreement


Treasury
Period End2021-06-302020-06-302020-03-312019-03-312018-06-30
Value20000.0200025003600
Percentage of TreasuryStockValueAcquiredCostMethod64.20.067.771.265.9

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Treasury
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302011-03-31
Value4000.0-710.00.04000.0-528.00.0500-628.00.07200.0
Percentage of TreasuryStockValueAcquiredCostMethod12.80.0-177.50.013.50.0-50.00.014.2-33.10.013.20.0

us-gaap:TreasuryStock


Treasury
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312011-03-31
Value271514027497100.0255660015846393009181934147431230110212598508029408516017135861238834807880856806683786575463394247248
Percentage of TreasuryStockValueAcquiredCostMethod87.2100.093.6177.50.086.5100.0150.0100.085.895.7100.086.8100.091.8104.994.4100.0104.494.6100.2100.097.7103.2104.2100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TreasuryStockValueAcquiredCostMethod us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Treasury
Period End2021-07-212021-04-212021-02-042020-10-212020-02-062019-10-162019-02-072018-04-252018-02-082017-10-252017-04-262017-02-022016-02-042015-10-222015-07-232015-04-22
Value23723744287493224521375349356228291268188225244
Percentage of TreasuryStockValueAcquiredCostMethod0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:VariableLeaseCost

us-gaap:VariableLeaseCost


Variable
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value1.81.41.85.72.32.11.9
Percentage of VariableLeaseCost100.0100.0100.0100.0100.0100.0100.0

unp:AccountsReceivableSupportingUndividedInvestorHeldInterest

unp:AccountsReceivableSupportingUndividedInvestorHeldInterest


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value13001300120013001100140013001300140013001400140013001200110011001000100010001000100010009001100110012001200130013001200110012001200120011001300120011001100960
Percentage of AccountsReceivableSupportingUndividedInvestorHeldInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:AccruedInterestDebtExchangeExistingNotes

unp:AccruedInterestDebtExchangeExistingNotes


Accrued
Period End2021-04-062020-12-312020-09-302019-12-312011-06-232010-07-14
Value144.04.0191715
Percentage of AccruedInterestDebtExchangeExistingNotes100.0100.0100.0100.0100.0100.0

unp:AccruedInterestDebtExchangeExistingNotes us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Accrued
Period End2021-04-06
Value14
Percentage of AccruedInterestDebtExchangeExistingNotes100.0

unp:AllowableDebtPerDebtToNetWorthCoverageRatioAsDefinedFacility us-gaap:LongtermDebtType

unp:AllowableDebtPerDebtToNetWorthCoverageRatioAsDefinedFacility

us-gaap:LineOfCredit


Allowable
Period End2020-12-31
Value36800
Percentage of AllowableDebtPerDebtToNetWorthCoverageRatioAsDefinedFacility100.0

unp:BoardOfDirectorsAuthorizedDebtIssuance

unp:BoardOfDirectorsAuthorizedDebtIssuance


Board
Period End2021-06-302021-03-312019-12-312019-11-142018-07-262018-02-122015-02-092013-02-28
Value60006000600060006000600040004000
Percentage of BoardOfDirectorsAuthorizedDebtIssuance100.0100.0100.0100.0100.0100.0100.0100.0

unp:BoardOfDirectorsRemainingDebtIssuance

unp:BoardOfDirectorsRemainingDebtIssuance


Board
Period End2021-06-302021-03-312020-12-312020-09-302020-03-312019-12-312017-03-312016-12-312016-09-302016-07-282014-02-072013-12-312013-09-302013-06-302013-03-312012-12-312010-12-312010-02-10
Value35006000225022503000600035503550355090018502850335033503350140025002250
Percentage of BoardOfDirectorsRemainingDebtIssuance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:CarryingValueOfEquipmentServingAsCollateralForFinanceLeasesAndOtherTypesOfEquipmentObligations

unp:CarryingValueOfEquipmentServingAsCollateralForFinanceLeasesAndOtherTypesOfEquipmentObligations


Carrying
Period End2020-12-312019-12-312018-12-31
Value130016001800
Percentage of CarryingValueOfEquipmentServingAsCollateralForFinanceLeasesAndOtherTypesOfEquipmentObligations100.0100.0100.0

unp:DeferredTaxAssetsOperatingLeaseLiabiities

unp:DeferredTaxAssetsOperatingLeaseLiabiities


Deferred
Period End2020-12-312019-12-31
Value396453
Percentage of DeferredTaxAssetsOperatingLeaseLiabiities100.0100.0

unp:DeferredTaxAssetsTaxDeferredExpenseCompensationBenefitsPensionsPostretirementBenefits

unp:DeferredTaxAssetsTaxDeferredExpenseCompensationBenefitsPensionsPostretirementBenefits


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value255171138141222204392100365342223
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationBenefitsPensionsPostretirementBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:DefinedBenefitPlanBenefitObligationUltimateHealthCareCostTrendRate us-gaap:RetirementPlanType

unp:DefinedBenefitPlanBenefitObligationUltimateHealthCareCostTrendRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4.50.0450.0450.0450.045
Percentage of DefinedBenefitPlanBenefitObligationUltimateHealthCareCostTrendRate100.0100.0100.0100.0100.0

unp:DefinedBenefitPlanHealthCareCostTrendRateAssumedEmployeesUnder65 us-gaap:RetirementPlanType

unp:DefinedBenefitPlanHealthCareCostTrendRateAssumedEmployeesUnder65

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value5.420.05640.05870.06090.0631
Percentage of DefinedBenefitPlanHealthCareCostTrendRateAssumedEmployeesUnder65100.0100.0100.0100.0100.0

unp:EquipmentRentsPayable

unp:EquipmentRentsPayable


Equipment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value991011011098310510010310710710711311811311010710510110110510499105105108101100106108101969599100951019694909392908689
Percentage of EquipmentRentsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:FairValueOfTotalDebtInExcessOfCarryingValue

unp:FairValueOfTotalDebtInExcessOfCarryingValue


Fair
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value240026005100510052001600200028001700600-500.0-200.0-100.040013001200100090090023002400170010001000900180015001200120090060080012001900210019001800150016001600100011001200945
Percentage of FairValueOfTotalDebtInExcessOfCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:LeaseLiability

unp:LeaseLiability


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-30
Value205320702171221724382535
Percentage of LeaseLiability100.0100.0100.0100.0100.0100.0

unp:LeaseLiabilityPaymentsDue

unp:LeaseLiabilityPaymentsDue


Lease
Period End2020-12-312020-09-30
Value23472384
Percentage of LeaseLiabilityPaymentsDue100.0100.0

unp:LeaseLiabilityPaymentsDueAfterYearFive

unp:LeaseLiabilityPaymentsDueAfterYearFive


Lease
Period End2020-12-312020-09-30
Value644906
Percentage of LeaseLiabilityPaymentsDueAfterYearFive100.0100.0

unp:LeaseLiabilityPaymentsDueNextTwelveMonths

unp:LeaseLiabilityPaymentsDueNextTwelveMonths


Lease
Period End2020-12-31
Value460
Percentage of LeaseLiabilityPaymentsDueNextTwelveMonths100.0

unp:LeaseLiabilityPaymentsDueYearFive

unp:LeaseLiabilityPaymentsDueYearFive


Lease
Period End2020-12-312020-09-30
Value261286
Percentage of LeaseLiabilityPaymentsDueYearFive100.0100.0

unp:LeaseLiabilityPaymentsDueYearFour

unp:LeaseLiabilityPaymentsDueYearFour


Lease
Period End2020-12-312020-09-30
Value288307
Percentage of LeaseLiabilityPaymentsDueYearFour100.0100.0

unp:LeaseLiabilityPaymentsDueYearThree

unp:LeaseLiabilityPaymentsDueYearThree


Lease
Period End2020-12-312020-09-30
Value310384
Percentage of LeaseLiabilityPaymentsDueYearThree100.0100.0

unp:LeaseLiabilityPaymentsDueYearTwo

unp:LeaseLiabilityPaymentsDueYearTwo


Lease
Period End2020-12-312020-09-30
Value384445
Percentage of LeaseLiabilityPaymentsDueYearTwo100.0100.0

unp:LeaseLiabilityPaymentsRemainderOfFiscalYear

unp:LeaseLiabilityPaymentsRemainderOfFiscalYear


Lease
Period End2020-09-30
Value56
Percentage of LeaseLiabilityPaymentsRemainderOfFiscalYear100.0

unp:LeaseLiabilityUndiscountedExcessAmount

unp:LeaseLiabilityUndiscountedExcessAmount


Lease
Period End2020-12-312020-09-30
Value294314
Percentage of LeaseLiabilityUndiscountedExcessAmount100.0100.0

unp:LeaseRightOfUseAsset

unp:LeaseRightOfUseAsset


Lease
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value19802086212722172280
Percentage of LeaseRightOfUseAsset100.0100.0100.0100.0100.0

unp:NetworkRouteMiles

unp:NetworkRouteMiles


Network
Period End2020-12-31
Value32313.0
Percentage of NetworkRouteMiles100.0

unp:OutstandingDebtAsDefinedByFacility us-gaap:LongtermDebtType

unp:OutstandingDebtAsDefinedByFacility

us-gaap:LineOfCredit


Outstanding
Period End2021-06-302021-03-312020-12-312020-09-30
Value30600282002830029600
Percentage of OutstandingDebtAsDefinedByFacility100.0100.0100.0100.0

unp:RecordedLiabilityRelatedToAssertedClaims us-gaap:LossContingenciesByNatureOfContingency

unp:RecordedLiabilityRelatedToAssertedClaims

unp:PersonalInjury


Recorded
Period End2021-06-302021-03-312020-12-312020-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value95.094.094.095.00.950.950.950.940.940.940.940.940.940.930.930.930.930.920.920.920.920.90.90.90.90.90.90.890.890.880.880.880.88
Percentage of RecordedLiabilityRelatedToAssertedClaims100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RecordedLiabilityRelatedToUnassertedClaims us-gaap:LossContingenciesByNatureOfContingency

unp:RecordedLiabilityRelatedToUnassertedClaims

unp:PersonalInjury


Recorded
Period End2021-06-302021-03-312020-12-312020-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value5.06.06.05.00.050.050.050.060.060.060.060.060.060.070.070.070.070.080.080.080.080.10.10.10.10.10.10.110.110.120.120.120.12
Percentage of RecordedLiabilityRelatedToUnassertedClaims100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RepurchaseOfCommonStockNotYetPaid

unp:RepurchaseOfCommonStockNotYetPaid


Repurchase
Period End2021-06-302021-03-312019-09-302019-03-312018-09-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302010-09-302010-06-30
Value3255422210.06429414365627.08436153339390.0242048150.00.00.06.044
Percentage of RepurchaseOfCommonStockNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.00.00.00.0100.0100.0

unp:RouteMilesOwned

unp:RouteMilesOwned


Route
Period End2020-12-31
Value26069.0
Percentage of RouteMilesOwned100.0

unp:SecuredDebtUnderReceivablesSecuritizationFacility

unp:SecuredDebtUnderReceivablesSecuritizationFacility


Secured
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value4000.00.04004004004004004004004004004006505002002002000.04004004000.00.0400400400100100100100100100
Percentage of SecuredDebtUnderReceivablesSecuritizationFacility100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:TotalTransferCapacityUndividedInterestsToInvestorsUnderReceivablesSecuritizationFacility

unp:TotalTransferCapacityUndividedInterestsToInvestorsUnderReceivablesSecuritizationFacility


Total
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-07-282014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value800800800800800800650650650600600600600600600600600600600600600
Percentage of TotalTransferCapacityUndividedInterestsToInvestorsUnderReceivablesSecuritizationFacility100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:UnderfundedAccumulatedBenefitObligation us-gaap:RetirementPlanType

unp:UnderfundedAccumulatedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Underfunded
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value560498446481412
Percentage of UnderfundedAccumulatedBenefitObligation100.0100.0100.0100.0100.0

unp:UnrecognizedTaxBenefitsNotImpactingEffectiveTaxRate

unp:UnrecognizedTaxBenefitsNotImpactingEffectiveTaxRate


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-22.0-25.0-111.0-96.0-94.0-63.0-118.0-25.0-74.0-27.04.025
Percentage of UnrecognizedTaxBenefitsNotImpactingEffectiveTaxRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility

unp:ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility


Value
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312013-01-022012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value4000.00.04004004004004004004004004004006505002002002000.04004004004004004004004004004000.00.0400400400400100100100100100100
Percentage of ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Value
Period End2021-04-12
Value400
Percentage of ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility0.0

us-gaap:AccountsPayableRelatedPartiesCurrent us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:AccountsPayableRelatedPartiesCurrent

unp:TtxCompany


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value626459676165626573696668736869676655616362606153
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccrualForEnvironmentalLossContingencies


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-312010-12-31
Value250234233235228226227226220216223217206198196201204203212208211192190201202191182179167166171179168166170175172213
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedEmployeeBenefitsCurrent

us-gaap:AccruedEmployeeBenefitsCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-03-312010-12-312009-12-31
Value340345340341345366370367371381384381380388384384385393387386391403391410414421409401395395385382375379376374369370363361357339
Percentage of AccruedEmployeeBenefitsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccruedEnvironmentalLossContingenciesCurrent

us-gaap:AccruedEnvironmentalLossContingenciesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302011-12-31
Value63636565636462626363595859575756565355545556526059586051515253504950504950
Percentage of AccruedEnvironmentalLossContingenciesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1217171820224.03.02.06.03.03.03.03.03.02.02.03.05.07.04.08.05.04.04.05.05.04.04.01.01.03.04.04.04.04.05.04.09.05.06.06.05.03.0
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableNoncurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableNoncurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4543515044383534312827272419171718181729161211131314161818212225272633353638414249475167
Percentage of AllowanceForDoubtfulAccountsReceivableNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CommercialPaper

us-gaap:CommercialPaper


Commercial
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312018-12-312017-12-312014-12-312014-06-30
Value20060752002002000.00.00.0
Percentage of CommercialPaper100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:DebtInstrumentCarryingAmount

us-gaap:DebtInstrumentCarryingAmount


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2826726394232081783115901
Percentage of DebtInstrumentCarryingAmount100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentCarryingAmount us-gaap:LongtermDebtType

unp:FinanceLeaseObligations


Debt
Period End2020-12-312019-12-312018-12-31
Value449605754
Percentage of DebtInstrumentCarryingAmount1.62.33.2

us-gaap:CommercialPaper


Debt
Period End2020-12-312019-12-312018-12-31
Value75200200
Percentage of DebtInstrumentCarryingAmount0.30.80.9

us-gaap:EquipmentTrustCertificate


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value88592396910181069963597
Percentage of DebtInstrumentCarryingAmount3.13.54.25.76.70.00.0

us-gaap:LoansPayable


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value250250250250100200200
Percentage of DebtInstrumentCarryingAmount0.90.91.11.40.60.00.0

us-gaap:NotesPayableToBanks


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value2660824008206271509613547119649266
Percentage of DebtInstrumentCarryingAmount94.191.088.984.785.20.00.0

us-gaap:DebtInstrumentFaceAmount us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

unp:NotesDue20312375Percent


Debt
Period End2021-05-20
Value850
Percentage of DebtInstrumentFaceAmount100.0

unp:NotesDue20413200Percent


Debt
Period End2021-05-20
Value1000
Percentage of DebtInstrumentFaceAmount117.6

unp:NotesDue20613550Percent


Debt
Period End2021-05-20
Value650
Percentage of DebtInstrumentFaceAmount76.5

us-gaap:DebtInstrumentFairValue

us-gaap:DebtInstrumentFairValue


Debt
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value312002930031900332003360029500272002850027000257002190022200227001800018200180001680015900159001790017500169001520014300142001410013000127001200011100102001020011000118001110011400112001040010500110009900103001040010800
Percentage of DebtInstrumentFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentRepurchaseAmount us-gaap:DebtInstrument

us-gaap:DebtInstrumentRepurchaseAmount

unp:NotesDue202140Percent


Debt
Period End2020-11-01
Value500
Percentage of DebtInstrumentRepurchaseAmount100.0

us-gaap:DebtInstrumentRepurchaseAmount us-gaap:LongtermDebtType

unp:DebtRedemption


Debt
Period End2020-09-30
Value500
Percentage of DebtInstrumentRepurchaseAmount0.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value15381194817887894674
Percentage of DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredIncomeTaxLiabilities


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value13315125251180311459170331643115584147081410013519
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value208134125142281296168130198231
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value40454646757674716963
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost

us-gaap:DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value263744466972696658
Percentage of DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value143146148147231237228223238259300
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesLeasingArrangements

us-gaap:DeferredTaxLiabilitiesLeasingArrangements


Deferred
Period End2020-12-312019-12-31
Value397447
Percentage of DeferredTaxLiabilitiesLeasingArrangements100.0100.0

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value444341213197346352411260237-207.079690
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value124741218411590112621668716079151731444813863-13312.01158110419
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value52004500390042003900
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value1819151015701654180617621858-1115.0-1815.0-1587.0-1098.0-943.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value149.090121125
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax0.80.65.77.36.9

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value18051501148015331681
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeBeforeTax99.299.494.392.793.1

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-1903.0-1605.0-1570.0-1653.0-1804.0-1769.0-1875.011431860164912011082
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-98.0-104.0-90.0-120.0-123.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax5.16.55.77.36.8

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-1805.0-1501.0-1480.0-1533.0-1681.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax94.993.594.392.793.2

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax


Defined
Period End2020-12-312019-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value-84.0-95.01.02.0-7.0-17.0284562103139
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312017-12-312016-12-31
Value-84.0-95.01.02.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmountsRecognizedInBalanceSheet

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-190.0-205.0-298.0-330.0-334.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-642.0-319.0-294.0-305.0-362.0
Percentage of DefinedBenefitPlanAmountsRecognizedInBalanceSheet337.9155.698.792.4108.4

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value8.020317219667
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate


Defined
Period End2020-12-312019-12-312017-12-312017-09-302016-12-31
Value2.423.260.03810.03810.042
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.220.03130.04170.03530.04
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate91.71.00.092.795.2

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.420.03260.04230.03620.042
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.01.00.095.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value4.40.0410.04190.0420.042
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanBenefitObligation

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value190205298330334329
Percentage of DefinedBenefitPlanBenefitObligation100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value565848474181452941103958
Percentage of DefinedBenefitPlanBenefitObligation2977.92364.41403.01372.41230.51203.0

us-gaap:DefinedBenefitPlanExpectedAmortizationNextFiscalYear us-gaap:StatementScenario

us-gaap:DefinedBenefitPlanExpectedAmortizationNextFiscalYear

srt:ScenarioForecast


Defined
Period End2020-12-31
Value-94000000.0
Percentage of DefinedBenefitPlanExpectedAmortizationNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedAmortizationNextFiscalYear us-gaap:StatementScenario, us-gaap:RetirementPlanType

srt:ScenarioForecast, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-31
Value5000000.0
Percentage of DefinedBenefitPlanExpectedAmortizationNextFiscalYear-5.3

srt:ScenarioForecast, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-31
Value-99000000.0
Percentage of DefinedBenefitPlanExpectedAmortizationNextFiscalYear105.3

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear us-gaap:StatementScenario

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear

srt:ScenarioForecast


Defined
Period End2020-12-31
Value108
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear us-gaap:StatementScenario, us-gaap:RetirementPlanType

srt:ScenarioForecast, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-31
Value9.0
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear8.3

srt:ScenarioForecast, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-31
Value99
Percentage of DefinedBenefitPlanExpectedAmortizationOfGainLossNextFiscalYear91.7

us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear us-gaap:StatementScenario

us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear

srt:ScenarioForecast


Defined
Period End2020-12-31
Value14
Percentage of DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear us-gaap:StatementScenario, us-gaap:RetirementPlanType

srt:ScenarioForecast, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-31
Value14
Percentage of DefinedBenefitPlanExpectedAmortizationOfPriorServiceCostCreditNextFiscalYear100.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value42458690
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value1158111911131101
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter2757.12486.71294.21223.3

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value18202223
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value228224223212
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths1266.71120.01013.6921.7

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value9.010.01920
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value226220217213
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive2511.12200.01142.11065.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value10.0152021
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value225219217212
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour2250.01460.01085.01009.5

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value14152022
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value226220218211
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree1614.31466.71090.0959.1

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value14192122
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value226221220212
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo1614.31163.21047.6963.6

us-gaap:DefinedBenefitPlanFundedStatusOfPlan us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanFundedStatusOfPlan

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-190.0-205.0-298.0-330.0-334.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-642.0-319.0-294.0-305.0-362.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan337.9155.698.792.4108.4

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value560498446481412
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value605522465501428
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value6.250.070.070.07
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:Range, us-gaap:DefinedBenefitPlanByPlanAssetCategories

srt:Maximum, us-gaap:DebtSecurities


Defined
Period End2020-12-312019-12-312018-12-31
Value50.00.350.35
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage800.0500.0500.0

srt:Maximum, us-gaap:EquitySecurities


Defined
Period End2020-12-312019-12-312018-12-31
Value60.00.70.7
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage960.01000.01000.0

srt:Maximum, us-gaap:RealEstate


Defined
Period End2020-12-312019-12-312018-12-31
Value2.00.080.08
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage32.0114.3114.3

srt:Minimum, us-gaap:DebtSecurities


Defined
Period End2020-12-312019-12-312018-12-31
Value40.00.250.25
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage640.0357.1357.1

srt:Minimum, us-gaap:EquitySecurities


Defined
Period End2020-12-312019-12-312018-12-31
Value50.00.60.6
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage800.0857.1857.1

srt:Minimum, us-gaap:RealEstate


Defined
Period End2020-12-312019-12-312018-12-31
Value00.020.02
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage0.028.628.6

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1 us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value4.50.0450.0450.0450.0450.045
Percentage of DefinedBenefitPlanUltimateHealthCareCostTrendRate1100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1 us-gaap:StatementScenario, us-gaap:RetirementPlanType

srt:ScenarioForecast, us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-12-312020-12-31
Value4.50.045
Percentage of DefinedBenefitPlanUltimateHealthCareCostTrendRate10.01.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value100.01.01.01.01.01.01.01.01.01.01.01.0
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanWeightedAverageAssetAllocations us-gaap:DefinedBenefitPlanByPlanAssetCategories

us-gaap:DebtSecurities


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value34.00.310.360.220.210.230.230.210.250.32
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations34.031.036.022.021.023.023.021.025.032.0

us-gaap:EquitySecurities


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value63.00.630.560.690.680.670.680.70.650.58
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations63.063.056.069.068.067.068.070.065.058.0

us-gaap:RealEstate


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-31
Value3.00.060.060.050.060.060.040.040.050.05
Percentage of DefinedBenefitPlanWeightedAverageAssetAllocations3.06.06.05.06.06.04.04.05.05.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:AwardType

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

unp:PerformanceRetentionAwards


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value303416212429242335544247515639475561201719371925376636415062394555654148
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RetentionAwards


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value11312988981151319010311913591101116133879911312884981131278810111613187991131247181951057989
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized376.7379.4550.0466.7479.2451.7375.0447.8340.0250.0216.7214.9227.5237.5223.1210.6205.5209.8420.0576.5594.7343.2463.2404.0313.5198.5241.7241.5226.0200.0182.1180.0172.7161.5192.7185.4

us-gaap:StockOption


Employee
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value222715202428161924301722273219222833182327311821263115192429172126312025
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized73.379.493.895.2100.096.666.782.668.655.640.546.852.957.148.746.850.954.190.0135.3142.183.894.784.070.347.041.746.348.046.843.646.747.347.748.852.1

us-gaap:EquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestments

unp:TtxCompany


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value160015001500150014001400140014001300130013001300120012001200935910890877861847836830795
Percentage of EquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiability

us-gaap:FinanceLeaseLiability


Finance
Period End2020-12-312020-09-30
Value449469
Percentage of FinanceLeaseLiability100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityCurrent


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value10995105119114
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseLiabilityNoncurrent


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value340374427433491
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDue

us-gaap:FinanceLeaseLiabilityPaymentsDue


Finance
Period End2020-12-312020-09-30
Value517542
Percentage of FinanceLeaseLiabilityPaymentsDue100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueAfterYearFive


Finance
Period End2020-12-312020-09-30
Value77122
Percentage of FinanceLeaseLiabilityPaymentsDueAfterYearFive100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths


Finance
Period End2020-12-31
Value135
Percentage of FinanceLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFive


Finance
Period End2020-12-312020-09-30
Value4568
Percentage of FinanceLeaseLiabilityPaymentsDueYearFive100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour

us-gaap:FinanceLeaseLiabilityPaymentsDueYearFour


Finance
Period End2020-12-312020-09-30
Value6881
Percentage of FinanceLeaseLiabilityPaymentsDueYearFour100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree

us-gaap:FinanceLeaseLiabilityPaymentsDueYearThree


Finance
Period End2020-12-312020-09-30
Value81115
Percentage of FinanceLeaseLiabilityPaymentsDueYearThree100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo

us-gaap:FinanceLeaseLiabilityPaymentsDueYearTwo


Finance
Period End2020-12-312020-09-30
Value111141
Percentage of FinanceLeaseLiabilityPaymentsDueYearTwo100.0100.0

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear


Finance
Period End2020-09-30
Value15
Percentage of FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear100.0

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount

us-gaap:FinanceLeaseLiabilityUndiscountedExcessAmount


Finance
Period End2020-12-312020-09-30
Value6873
Percentage of FinanceLeaseLiabilityUndiscountedExcessAmount100.0100.0

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinanceLeaseRightOfUseAsset


Finance
Period End2020-12-312020-09-302020-06-302020-03-312019-12-31
Value370444427444468
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent

us-gaap:FinanceLeaseWeightedAverageDiscountRatePercent


Finance
Period End2020-12-312020-09-30
Value5.15.2
Percentage of FinanceLeaseWeightedAverageDiscountRatePercent100.0100.0

us-gaap:GuaranteeObligationsCurrentCarryingValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:GuaranteeObligations


Guarantee
Period End2020-12-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value00000000000000000000005200000.0300000.0200000.0300000.01000000.01000000.01000000.01000000.02000000.02000000.02000000.02000000.02000000.03000000.03000000.02000000.02000000.03000000.03000000.0
Percentage of GuaranteeObligationsCurrentCarryingValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:GuaranteeObligationsMaximumExposure us-gaap:LossContingenciesByNatureOfContingency

us-gaap:GuaranteeObligationsMaximumExposure

us-gaap:GuaranteeObligations


Guarantee
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value10.01515151519222222263333333343434347535353566278828893299299302307307
Percentage of GuaranteeObligationsMaximumExposure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HeldToMaturitySecuritiesCurrent

us-gaap:HeldToMaturitySecuritiesCurrent


Held
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-10-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value4660606060606060606060909090909090909060330330
Percentage of HeldToMaturitySecuritiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:HeldToMaturitySecuritiesCurrent us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:InvestmentType

us-gaap:FairValueInputsLevel2, us-gaap:BankTimeDeposits


Held
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value467070757575758085909090909090909060310310
Percentage of HeldToMaturitySecuritiesCurrent100.0116.7116.7125.0125.0125.0125.0133.3141.7150.0100.0100.0100.0100.0100.0100.0100.0100.093.993.9

us-gaap:HeldToMaturitySecuritiesRestricted

us-gaap:HeldToMaturitySecuritiesRestricted


Held
Period End2021-03-312020-12-312020-09-302019-03-312018-12-31
Value10.010.0153030
Percentage of HeldToMaturitySecuritiesRestricted100.0100.0100.0100.0100.0

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued

us-gaap:IncomeTaxExaminationPenaltiesAndInterestAccrued


Income
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value8.03.08.08.08.02.06.06.06.010.01913
Percentage of IncomeTaxExaminationPenaltiesAndInterestAccrued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPayableCurrent

us-gaap:InterestPayableCurrent


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-31
Value330205326200342204289201299198317240223165220179205170212169198162208143179133178127161130169114183122172126199133197200
Percentage of InterestPayableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths


Lessee
Period End2020-12-31
Value325
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths100.0

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear

us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear


Lessee
Period End2020-09-30
Value41
Percentage of LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear100.0

us-gaap:LineOfCreditFacilityFairValueOfAmountOutstanding

us-gaap:LineOfCreditFacilityFairValueOfAmountOutstanding


Line
Period End2021-03-312020-09-30
Value0.0300
Percentage of LineOfCreditFacilityFairValueOfAmountOutstanding0.0100.0

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity us-gaap:LongtermDebtType, us-gaap:VariableRate

us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity

us-gaap:LineOfCredit, us-gaap:LondonInterbankOfferedRateLIBOR


Line
Period End2020-12-31
Value2000
Percentage of LineOfCreditFacilityRemainingBorrowingCapacity100.0

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent


Long
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value11101565106919801990151112571421229717031466146814561891800903531723758407409402594521431416462460458632705691733552196713780769209642179180239212
Percentage of LongTermDebtAndCapitalLeaseObligationsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive


Long
Period End2020-12-31
Value21559
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths


Long
Period End2020-12-31
Value1072
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive


Long
Period End2020-12-31
Value1429
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour


Long
Period End2020-12-31
Value1439
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree


Long
Period End2020-12-31
Value1384
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree100.0

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo


Long
Period End2020-12-31
Value1384
Percentage of LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo100.0

us-gaap:LossContingencyAccrualAtCarryingValue us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyAccrualAtCarryingValue

unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-312007-12-31
Value301293270266259270265272265266271273269272285287285291290288289316318317312299335303293294294317315335334348340372368391401429426460462533545621593
Percentage of LossContingencyAccrualAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualCarryingValueCurrent

us-gaap:LossContingencyAccrualCarryingValueCurrent


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value186177177180182177190211210219211200202189194203203194185186185180181196207208249207
Percentage of LossContingencyAccrualCarryingValueCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyAccrualCarryingValueCurrent us-gaap:LossContingenciesByNatureOfContingency

unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312008-12-31
Value6260606265626361636772706870666969656262636163636470111778078828590979597102107103140140141140157157158158186
Percentage of LossContingencyAccrualCarryingValueCurrent33.333.933.934.435.735.033.228.930.030.634.135.033.737.034.034.034.033.533.533.334.133.934.832.130.933.744.60.00.00.039.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:LossContingencyAccrualCarryingValueCurrent us-gaap:ValuationAllowancesAndReservesType

unp:AccruedCasualtyCosts


Loss
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value177190211194185181249207213
Percentage of LossContingencyAccrualCarryingValueCurrent100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:LossContingencyAccrualCarryingValueNoncurrent us-gaap:ValuationAllowancesAndReservesType

us-gaap:LossContingencyAccrualCarryingValueNoncurrent

unp:AccruedCasualtyCosts


Loss
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value467467498490531555508495521
Percentage of LossContingencyAccrualCarryingValueNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LossContingencyEstimateOfPossibleLoss us-gaap:Range, us-gaap:LossContingenciesByNatureOfContingency

us-gaap:LossContingencyEstimateOfPossibleLoss

srt:Maximum, unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value330320295290283295289297290292297299
Percentage of LossContingencyEstimateOfPossibleLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

srt:Minimum, unp:PersonalInjury


Loss
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value301293270266259270265272265266271273
Percentage of LossContingencyEstimateOfPossibleLoss91.291.691.591.791.591.591.791.691.491.191.291.3

us-gaap:MaterialsSuppliesAndOther

us-gaap:MaterialsSuppliesAndOther


Materials
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value688659638649668692751771775780742789772808749742726760717690660716736741762744712736739705653683654655660680646614
Percentage of MaterialsSuppliesAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeasesFutureMinimumPaymentsDue

us-gaap:OperatingLeasesFutureMinimumPaymentsDue


Operating
Period End2020-12-312020-09-302018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value130013002646230025002400264927002800290030433100320033003430340035003600
Percentage of OperatingLeasesFutureMinimumPaymentsDue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value1820222324
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value3029282724
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities166.7145.0127.3117.4100.0

us-gaap:RestrictedCashAndCashEquivalents us-gaap:BalanceSheetLocation

us-gaap:RestrictedCashAndCashEquivalents

us-gaap:OtherCurrentAssets


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value323.07.05.06.065134110.02742
Percentage of RestrictedCashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherNoncurrentAssets


Restricted
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1212121212121212121213
Percentage of RestrictedCashAndCashEquivalents37.5400.0171.4240.0200.018.592.329.3120.044.431.0

us-gaap:RevenueRemainingPerformanceObligation

us-gaap:RevenueRemainingPerformanceObligation


Revenue
Period End2020-12-312019-12-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value151127123151177161154
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber

unp:PerformanceRetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value682000.0697000.0773000.0814000.0834000.0840000.0929000.0941000.0945000.0978000.01092000.01116000.01126000.01186000.01138000.01189000.01189000.01207000.01145000.01163000.01163000.01181000.01255000.01312000.01315000.01329000.01583000.01593000.01618000.0837000.0944000.0945000.0946000.0956000.01075000.01080.01085.01204.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

unp:RetentionAwards


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302011-12-31
Value1311000.01330000.01476000.01501000.01555000.01572000.01898000.01928000.01955000.01985000.02070000.02147000.02171000.02210000.02313000.02471000.02485000.02521000.02789000.02812000.02828000.02867000.02900000.02926000.02951000.03005000.03403000.03406000.03438000.01725000.01856000.01865000.01878000.01905000.02355000.02363.02380.02556.0
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber192.2190.8190.9184.4186.5187.1204.3204.9206.9203.0189.6192.4192.8186.3203.3207.8209.0208.9243.6241.8243.2242.8231.1223.0224.4226.1215.0213.8212.5206.1196.6197.4198.5199.3219.1218.8219.4212.3

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue us-gaap:AwardType

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue

unp:PerformanceRetentionAwards


Share
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Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31