WMB


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

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:CostsAndExpenses

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeTaxExpenseBenefit

us-gaap:InterestExpense

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:OperatingCostsAndExpenses

us-gaap:OperatingIncomeLoss

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:SubsegmentsConsolidationItems
us-gaap:SubsegmentsConsolidationItems

us-gaap:Revenues
us-gaap:ConsolidationItems
us-gaap:ConsolidationItems, us-gaap:ProductOrService
us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ProductOrService
us-gaap:ProductOrService, us-gaap:StatementBusinessSegments
us-gaap:SubsegmentsConsolidationItems

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:Assets
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:ConsolidationItems
us-gaap:StatementBusinessSegments
us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation
us-gaap:Liabilities

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity

us-gaap:AssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:ReceivablesNetCurrent
us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType
us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType
us-gaap:ProductOrService

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:AssetsNoncurrent

us-gaap:PropertyPlantAndEquipmentGross
us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject
us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OtherAssetsNoncurrent

us-gaap:AccountsPayableCurrent

us-gaap:AccruedLiabilitiesCurrent

us-gaap:LiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OtherAccruedLiabilitiesCurrent
us-gaap:EquityMethodInvestmentNonconsolidatedInvestee
us-gaap:LiabilitiesNoncurrent

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:LongTermDebtAndCapitalLeaseObligations
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:MinorityInterest
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
us-gaap:BalanceSheetLocation
us-gaap:OperatingLeaseLiability

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:StockholdersEquity

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:RetainedEarningsAccumulatedDeficit

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:MinorityInterest

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
us-gaap:StatementEquityComponents

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss

us-gaap:ProfitLoss
us-gaap:StatementEquityComponents

us-gaap:ShareBasedCompensation

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment
us-gaap:StatementBusinessSegments, wmb:AssetAcquisition
us-gaap:PaymentsToAcquireProductiveAssets
us-gaap:SubsequentEventType
wmb:AssetAcquisition

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:PaymentsOfDividendsCommonStock
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxAssetsNet

us-gaap:UnrecognizedTaxBenefits

us-gaap:DeferredTaxAssetsValuationAllowance
us-gaap:StatementBusinessSegments, wmb:AssetAcquisition
us-gaap:AssetRetirementObligationLiabilitiesIncurred
wmb:AssetAcquisition

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:CurrentFederalTaxExpenseBenefit

us-gaap:CurrentIncomeTaxExpenseBenefit

us-gaap:CurrentStateAndLocalTaxExpenseBenefit

us-gaap:DeferredFederalIncomeTaxExpenseBenefit

us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanContributionsByEmployer
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanInterestCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanServiceCost

us-gaap:DividendsCommonStockCash
us-gaap:StatementEquityComponents

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment
us-gaap:IncomeStatementLocation
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:ExtinguishmentOfDebtAmount

us-gaap:GoodwillImpairmentLoss

us-gaap:IncomeLossFromEquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable
us-gaap:StatementBusinessSegments, wmb:AssetAcquisition
us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:IncreaseDecreaseInAccruedLiabilities
us-gaap:MajorCustomers
us-gaap:IncreaseDecreaseInAssetRetirementObligations
us-gaap:MajorCustomers
us-gaap:IncreaseDecreaseInContractWithCustomerLiability

us-gaap:IncreaseDecreaseInOtherCurrentAssets
us-gaap:AwardType
us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalizedAdjustment

us-gaap:InterestCostsIncurred

us-gaap:InvestmentIncomeNonoperating
us-gaap:IncomeStatementLocation
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:OtherAssetImpairmentCharges

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax
us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents
us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherSignificantNoncashTransactionValueOfConsiderationReceived1

us-gaap:PaymentsForProceedsFromOtherInvestingActivities

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDividendsMinorityInterest
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:PaymentsToAcquireBusinessesGross

us-gaap:PaymentsToAcquireEquityMethodInvestments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:ProceedsFromContributionInAidOfConstruction

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentAdditions
us-gaap:StatementBusinessSegments, wmb:AssetAcquisition
wmb:AssetAcquisition
us-gaap:MajorCustomers
us-gaap:PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease
us-gaap:StatementEquityComponents
us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
us-gaap:StatementEquityComponents
us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome
us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:RevenueNotFromContractWithCustomer
us-gaap:SubsegmentsConsolidationItems

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityOther
us-gaap:StatementEquityComponents

us-gaap:StockholdersEquityPeriodIncreaseDecrease
us-gaap:StatementEquityComponents
dei:LegalEntity, us-gaap:Ownership, us-gaap:StatementBusinessSegments
us-gaap:SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments
us-gaap:TangibleAssetImpairmentCharges

wmb:AssetRetirementObligationAccretionExpenseForNonregulatedOperations

wmb:ContractLiabilityNoncashInterestExpenseSignificantFinancingObligation

wmb:ContributionsFromNoncontrollingInterests
us-gaap:StatementEquityComponents

wmb:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid

wmb:ModifiedEBITDAEarningsLoss
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

wmb:ProportionalModifiedEBITDAEquityMethodInvestments
us-gaap:RetirementPlanType
wmb:ReclassificationOfEmployeeBenefitCostCreditToRegulatoryAssetLiability

dei:EntityCommonStockSharesOutstanding
us-gaap:SubsequentEventType
srt:ProductiveGasWellsNumberOfWellsGross
wmb:AssetAcquisition
us-gaap:RelatedPartyTransaction
us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccrualForEnvironmentalLossContingencies
us-gaap:LossContingenciesByNatureOfContingency

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligationCurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency
us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue
us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetRetirementObligationsNoncurrent
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BusinessAcquisition
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

us-gaap:CommercialPaper
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:PlanName
us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerLiability
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:DebtInstrumentFaceAmount

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

us-gaap:DeferredIncomeTaxLiabilities

us-gaap:DeferredRevenueCurrent

us-gaap:DeferredTaxAndOtherLiabilitiesNoncurrent

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOther
us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward
us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates

us-gaap:DeferredTaxLiabilitiesOther

us-gaap:DeferredTaxLiabilitiesPropertyPlantAndEquipment
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanBenefitObligation
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:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanFundedStatusOfPlan
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
us-gaap:RetirementPlanType
us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:EmployeeRelatedLiabilitiesCurrent
us-gaap:PlanName
us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName
us-gaap:EquityMethodInvestmentOwnershipPercentage
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

us-gaap:EquityMethodInvestments
dei:LegalEntity, us-gaap:ConsolidatedEntities, us-gaap:Ownership
us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:FiniteLivedIntangibleAssetsAccumulatedAmortization

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFive

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearFour

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearThree

us-gaap:FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo

us-gaap:FiniteLivedIntangibleAssetsGross
us-gaap:GuaranteeObligationsByNature
us-gaap:GuaranteeObligationsMaximumExposure
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:GuaranteesFairValueDisclosure
us-gaap:FairValueByMeasurementBasis

us-gaap:InterestPayableCurrent
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:StatementBusinessSegments
us-gaap:InvestmentsFairValueDisclosure

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
dei:LegalEntity, us-gaap:CreditFacility
us-gaap:LettersOfCreditOutstandingAmount
dei:LegalEntity
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
us-gaap:FairValueByFairValueHierarchyLevel
us-gaap:LongTermDebtFairValue
us-gaap:FairValueByMeasurementBasis

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree

us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
us-gaap:RetirementPlanType
us-gaap:NetRegulatoryAssets

us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent
us-gaap:UnusualOrInfrequentItem
us-gaap:OtherCommitmentDueInNextTwelveMonths

us-gaap:OtherLiabilitiesAndDeferredRevenueNoncurrent
dei:LegalEntity, us-gaap:DebtInstrument
us-gaap:OtherLongTermDebt
us-gaap:RetirementPlanType
us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities

us-gaap:PreferredStockValue
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:StatementBusinessSegments
us-gaap:PropertyPlantAndEquipmentFairValueDisclosure
us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus
us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantAcquisitionAdjustmentsForIntangibleUtilityPlants

us-gaap:RegulatoryAssets

us-gaap:RegulatoryAssetsCurrent

us-gaap:RegulatoryAssetsNoncurrent

us-gaap:RegulatoryLiabilities

us-gaap:RegulatoryLiabilityCurrent

us-gaap:RegulatoryLiabilityNoncurrent

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
us-gaap:AwardType, us-gaap:PlanName
us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice

us-gaap:UnamortizedDebtIssuanceExpense

us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued

us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
us-gaap:UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchased
us-gaap:UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
us-gaap:ValuationAllowancesAndReservesType
us-gaap:ValuationAllowancesAndReservesBalance
us-gaap:RetirementPlanType
wmb:AmountsIncludedInNetRegulatoryLiabilitiesAssetsAssociatedWithOurFederalEnergyRegulatoryCommissionRegulatedGasPipelinesNetActuarialGainLoss
us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:MeasurementInputType
wmb:InvestmentsFairValueInputs
us-gaap:AwardType, us-gaap:PlanName
wmb:PerformanceBasedNonvestedRestrictedStockUnitsAsPercentOfTotalNonvestedRestrictedStockUnitsOutstanding
us-gaap:BalanceSheetLocation, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:StatementBusinessSegments
wmb:PropertyPlantAndEquipmentAndIntangiblesFairValueDisclosure

Plots across concepts


IncomeStatement
Other Comprehensive Income Loss Net Of Tax
Expenses
Other Nonoperating Income Expense
Balance Sheet
Operating Lease Right Of Use Asset
Assets
Operating Lease Right Of Use Asset
Current Assets
Inventory Net
NonCurrent Assets
Operating Lease Right Of Use Asset
PropertyPlantAndEquipmentNet
Accumulated Depreciation Depletion And Amortization Property Plant And Equipment
Liabilities
Liabilities Current
Current Liabilities
Deferred Revenue Current
Noncurrent Liabilities
Minority Interest
Stockholders Equity
Retained Earnings Accumulated Deficit
Per Share
Earnings Per Share Diluted
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
Treasury Stock Shares
LesseeOperatingLeaseLiabilityPaymentsDue
Lessee Operating Lease Liability Payments Due Year Four
AccountsReceivable
Allowance For Doubtful Accounts Receivable Current

Tables

  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:CommonStockValue ████████████▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁1249.01249.01248.01248.01248.01248.01247.01247.01246.01246.01245.01245.0862.0862.0861.0861.0861.0861.0785.0785.0785.0785.0784.0784.0784.0783.0782.0782.0782.0720.0718.0718.0718.0717.0716.0662.0661.0630.0626.0623.0623.0622.0620.0NANANA
us-gaap:CommonStockSharesIssued ████████████▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁1249.01249.01248.01248.01248.01248.01247.01247.01246.01246.01245.01245.0862.0862.0861.0861.0861.0861.0785.0785.0785.0785.0784.0784.0784.0783.0782.0782.0782.0720.0718.0718.0718.0717.0716.0662.0661.0630.0626.0623.0623.0622.0620.0NANANA
us-gaap:CommonStockSharesAuthorized ████████████▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1470.01470.01470.01470.01470.01470.01470.01470.01470.01470.01470.01470.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0NA960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0960.0NANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding █▁1217.4761217.211NA1215.3351214.5811213.019NA1214.1651214.0651213.592NA1026.504830.107830.197NA829.368828.575826.476NA751.858750.649750.332NA749.824752.775752.028NA752.064700.696688.904NA687.306686.924687.143NA632.019626.62600.52NA597.55597.633596.567NA584.744592.498583.929
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic █▁1215.251214.646NA1213.9121213.6011213.019NA1212.271212.0451211.489NA1023.587827.868827.509NA826.779826.426824.548NA750.754750.649750.332NA749.824749.253748.079NA747.412696.553684.773NA683.274682.893682.052NA626.809621.483593.231NA588.95588.31586.977NA584.744584.414583.929
us-gaap:EarningsPerShareBasic ▅▅▅▅▅▄▅▅▅▅▃▅▅▅█▄▅▅▄▅▄▄▃▄▅▅▅█▅▅▄▅▅▅▅▅▅▆▃▅▅▅▅▁▅▄0.250.350.090000000000000010.250.25-0.430.099999999999999980.180.260.16-0.630.130.160.182.040.040.10.45-0.0199999999999999070.08-0.54-0.09-0.95-0.050.150.090.239999999999999772.240.150.2-0.0200000000000000180.210.210.240.229999999999999980.250.210.71-0.74999999999999990.460.390.550.29000000000000004-2.160.32-0.33
us-gaap:EarningsPerShareDiluted ▅▅▅▅▅▄▅▅▅▅▃▅▅▅█▅▅▅▄▅▄▄▃▄▅▅▅█▅▅▄▅▅▅▅▅▅▆▃▅▅▅▅▁▅▄0.250.350.090000000000000010.250.25-0.430.099999999999999980.180.260.16-0.620.130.160.182.03000000000000020.040.10.45-0.0199999999999999070.08-0.54-0.09-0.95-0.050.150.090.239999999999999772.220.150.2-0.0300000000000000270.20.210.230.22000000000000020.250.210.7-0.74000000000000010.460.380.540.29000000000000004-2.160.31-0.33
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 TTM Greenblatt ROC _ _▇█▇█▇▇▆▇▇▇▂▇▆▇▄▆▆▇▇▆▂▆▁▆▆▆▇▆▆▆▆▆▆▇▆▆▆▇▆▇▇▇▇600.0739.0518.0641.0612.0431.0234.0628.0498.0561.0-634.0501.0410.0491.0-187.0277.0381.0433.0581.0345.0-488.0262.0-749.0356.0392.0227.0531.0307.0311.0420.0263.0336.0350.0426.0380.0373.0332.0527.0346.0494.0547.0480.0439.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:ComprehensiveIncomeNetOfTax ▄▄▄▄▄▂▄▄▄▄▂▃▃▃█▃▃▄▃▃▂▃▁▃▃▃▃█▃▃▃▄▃▃▃▄▃▄▂▄▄▄294.0422.0180.0325.0332.0-523.0191.0220.0312.0198.0-550.0134.0136.0157.01780.033.084.0378.0-23.099.0-396.0-1.0-732.0-81.0125.016.074.01650.0132.0101.0160.0197.0122.0149.0117.0182.0142.0445.0-540.0293.0248.0287.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest ▆▆▆▆▆▆▅▇▆▇▇▇▇▇▆▇▇█▇▇▆▇▁▅▇▆▇▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇18.09.014.014.012.0-53.0-190.021.014.019.025.072.0130.0119.0-64.089.0112.0197.052.0108.0-98.081.0-638.0-157.074.0-92.0101.012.037.056.063.056.050.069.049.040.047.070.082.070.070.063.0NANANANA
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest ▅▅▅▅▅▃▄▅▅▅▃▅▅▅█▄▅▅▄▅▃▄▁▄▅▄▅█▄▄▅▅▄▅▄▅▅▅▃▅▅▅▄▂▄▄312.0431.0194.0339.0344.0-576.01.0241.0326.0217.0-525.0206.0266.0276.01716.0122.0196.0575.029.0207.0-494.080.0-1370.0-238.0199.0-76.0175.01662.0169.0157.0223.0253.0172.0218.0166.0222.0189.0515.0-458.0363.0318.0350.0114.0-1134.0157.027.0
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService us-gaap:OilAndGasPurchased▆█▃▂▁▂▄▃▃▄▅▆697.0932.0498.0380.0271.0396.0519.0434.0483.0525.0668.0790.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService wmb:NaturalGasPurchasedForShrink▂▃▂▃▁▁▃▂▃▇█▅18.021.019.021.015.013.022.019.024.040.046.030.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:CostsAndExpenses ▃▄▃▂▁▂▄▂▃▂█▄▃▃▆▃▃▃▃▃▅▂█▂▂▂▃▃▂▂▂▁▂▂▃▂▂▂▃▂▂1683.01873.01574.01292.01169.01482.01873.01371.01543.01493.02838.01802.01681.01597.02415.01614.01543.01555.01617.01560.02224.01398.02755.01443.01447.01489.01610.01762.01367.01329.01397.01287.01417.01384.01622.01336.01464.01492.01732.01467.01479.0NANANANANA
us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest ▄▅▄▄▄▃▄▄▄▄▃▄▄▄▃▄▄▅▄▄▃▄▁▃▄▄▄█▄▄▄▄▄▄▄▄▄▅▄▄▄▄▆▂▄441.0576.0185.0434.0432.0-774.040.0319.0422.0283.0-705.0390.0321.0325.0-478.0149.0258.0606.086.0200.0-650.0-11.0-1784.0-238.0266.043.0424.02706.0207.0247.0191.0260.0302.0327.0283.0277.0237.0492.0-31.0402.0445.0338.01669.0-1371.0329.0NA
us-gaap:IncomeTaxExpenseBenefit ▆▆▆▆▆▅▆▆▆▆▅▆▆▆▁▆▆▆▆▆▅▆▅▆▆▆▆█▆▆▆▆▆▆▆▆▆▆▆▆▆▆▆▅▆▆119.0141.055.0111.0117.0-204.091.077.098.069.0-159.0190.052.055.0-2100.024.065.037.049.069.0-145.02.0-447.0-65.083.030.0116.0998.084.051.0141.062.0102.096.079.077.071.0133.0-70.055.0145.0-6.0110.0-150.0104.0-94.0
us-gaap:InterestExpense ███████████▇▇▇▇▇▇▇████▇▆▆▆▅▄▂▁298.0294.0290.0292.0294.0296.0298.0296.0296.0296.0294.0270.0275.0273.0265.0267.0271.0280.0293.0297.0298.0291.0268.0263.0262.0251.0234.0210.0163.0140.0NANANANANANANANANANANANANANANANA
us-gaap:NetIncomeLoss ▅▅▄▅▅▃▄▅▅▄▃▄▄▄█▄▄▅▄▄▃▄▂▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▃▅▅▅▄▁▄▄304.0426.0116.0309.0303.0-517.0124.0221.0310.0195.0-571.0129.0135.0152.01687.033.081.0373.0-15.061.0-405.0-65.0-715.0-40.0114.070.0193.01678.0103.0140.0-14.0141.0142.0161.0149.0155.0132.0423.0-444.0272.0227.0321.0174.0-1263.0185.0-193.0
us-gaap:NetIncomeLossAttributableToNoncontrollingInterest ▆▆▆▆▆▆▅▇▆▆▇▇▇▇▆▇▇█▇▇▅▇▁▅▇▆▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇18.09.014.014.012.0-53.0-190.021.014.019.025.071.0134.0118.0-65.092.0112.0196.052.070.0-100.052.0-622.0-133.069.0-57.0115.030.024.056.063.056.050.069.053.048.033.072.082.070.070.063.054.037.037.047.0
us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic ▄▄▃▄▄▁▃▃▄▃▁▃▃▃█▃304.0425.0115.0308.0303.0-518.0123.0220.0310.0194.0-572.0129.0135.0152.01687.033.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingCostsAndExpenses ▅▅▄▄▄▄▅▅▆▄▅▆▆▅▇▆▆▅▆▆▆▆▇▆▇▆█▆▃▃▂▂▃▂▂▂▂▁379.0360.0333.0336.0320.0337.0377.0364.0387.0340.0373.0389.0388.0357.0428.0400.0389.0368.0401.0394.0394.0391.0428.0403.0437.0387.0474.0412.0308.0298.0277.0269.0291.0260.0261.0261.0275.0230.0NANANANANANANANA
us-gaap:OperatingIncomeLoss ██▇██▇▆█▇▇▃▇▇▇▅▆▇▇▇▇▄▆▃▇▇▆▇▇▇▇▆▇▇▇▇▇▇▇▇▇▇▇▇▁▇▇600.0739.0518.0641.0612.0431.0234.0628.0498.0561.0-634.0501.0410.0491.0-187.0277.0381.0433.0581.0345.0-488.0262.0-749.0356.0392.0227.0531.0307.0311.0420.0263.0336.0350.0426.0380.0373.0332.0527.0346.0494.0547.0480.0439.0-1290.0416.0479.0
us-gaap:OtherComprehensiveIncomeLossNetOfTax ▄▄▅▄▅▄▆▄▄▄▅▄▄▄▆▄▄▄▄▆▄▆▃▃▄▂▁▃▅▃█▅▄▄▃▄▅▄▂▅-10.0-4.064.016.029.0-6.067.0-1.02.03.021.06.0-3.06.094.0-3.03.06.0-8.076.011.093.0-33.0-65.016.0-89.0-133.0-46.042.0-39.0174.056.0-20.0-12.0-36.019.024.020.0-96.021.0NANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment▂▂█▃▄▁█3.03.065.016.029.0-6.067.0NANANA11.04.0NANA91.04.04.03.0-8.04.01.04.014.07.06.06.0-95.05.05.05.0184.036.010.09.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges▁█-13.0-7.0NANA0.00.00.0NANANA10.01.0NANA1.0-4.0-1.02.00.01.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0NANANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome▄▄▅▄▅▄▅▄▄▄▄▄▄▄▆▄▄▄▄▅▄▅▃▃▄▃▁▃▅▃█▅▃▄▃-10.0-4.064.016.029.0-6.067.0-1.02.03.021.05.01.05.093.00.03.05.0-8.038.09.064.0-17.0-41.011.0-54.0-119.0-28.029.0-39.0174.056.0-20.0-12.0-32.0NANANANANANANANANANANA
 us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:Parent▄▄▅▄▅▄▅▄▄▄▄▄▄▄▆▄▄▄▄▅▄▅▃▃▄▃▁▃▅▃█▅▃▄▃-10.0-4.064.016.029.0-6.067.0-1.02.03.021.05.01.05.093.00.03.05.0-8.038.09.064.0-17.0-41.011.0-54.0-119.0-28.029.0-39.0174.056.0-20.0-12.0-32.0NANANANANANANANANANANA
us-gaap:OtherNonoperatingIncomeExpense ▅▅▄▄▅▅▆▅▆▆▅▇▆▆▁▆▆█▆▆▆▆▆▆▇▆▆▆▅▅▅▅▅▅▅▅▅▅▆▅▅▅▅▅▅▅2.0-2.0-29.0-23.05.04.014.01.07.011.0-7.052.026.021.0-117.020.021.074.022.020.017.015.032.020.034.016.016.010.04.01.0-1.01.02.0-2.0-1.00.03.0-4.07.00.0-2.04.00.0-4.0-1.0-7.0
us-gaap:PreferredStockDividendsIncomeStatementImpact ▁███▁███▁██▁▁▁▁▁0.01.01.01.00.01.01.01.00.01.01.00.00.00.00.00.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:ProfitLoss ▅▅▄▅▅▃▄▅▅▅▃▅▅▅█▄▅▅▄▄▃▄▁▄▄▄▅█▄▅▄▅▅▅▅▅▄▅▃▅▅▅▅▁▅▄322.0435.0130.0323.0315.0-570.0-66.0242.0324.0214.0-546.0200.0269.0270.01622.0125.0193.0569.037.0131.0-505.0-13.0-1337.0-173.0183.013.0308.01708.0127.0196.049.0197.0192.0230.0202.0203.0165.0495.0-362.0342.0297.0384.0228.0-1226.0222.0-146.0
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ▇█▆▆▆▆▆▆▆▆▇▇▆▆▇▆▆▆▇▆▆▅▆▆▆▅▇▆▅▆▅▅▆▆▆▆▆▆▁███▇▇▇█2270.02629.02071.01918.01766.01898.02100.01985.02021.02034.02181.02280.02075.02073.02228.01891.01924.01988.02198.01905.01736.01660.02006.01799.01839.01716.02141.02069.01678.01749.01660.01623.01767.01810.01869.01752.01846.02019.0-17.02703.02669.02575.02436.02300.02289.02591.0
us-gaap:Revenues ▇█▆▆▆▆▆▆▆▆▇▇▆▆▇▆▆▆▇▆▆▅▆▆▆▅▇▆▅▆▅▅▆▆▆▆▆▆▁███▇▇▇█2283.02612.02092.01933.01781.01913.02107.01999.02041.02054.02204.02303.02091.02088.02228.01891.01924.01988.02198.01905.01736.01660.02006.01799.01839.01716.02141.02069.01678.01749.01660.01623.01767.01810.01869.01752.01846.02019.0-17.02703.02669.02575.02436.02300.02289.02591.0
us-gaap:SellingGeneralAndAdministrativeExpense ▅▅▅▅▅▅▅▅▆▅▅▆▅▅▆▅▆▆▆▆▆▇▆▆▆▆▇▆▅▅▅▅▅▅█▄▅▄▁▅▅▅▅▅▅▅114.0123.0112.0114.0127.0113.0148.0130.0152.0128.0133.0174.0130.0132.0156.0138.0153.0161.0167.0177.0158.0221.0194.0177.0174.0196.0204.0171.0136.0150.0127.0130.0123.0132.0277.096.0105.096.0-76.0130.0134.0137.0142.0122.0123.0111.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:Assets ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇▇▇███████▅▃▃▃▃▃▃▂▂▁▁▃▃▃▃45507.045262.044165.044320.045343.044629.046040.046281.046509.045970.045302.047153.046374.047052.046352.046120.048770.047512.046835.047288.048124.048807.049020.050819.051163.050457.050563.049807.034949.028306.027142.026455.025657.024816.024327.021263.020267.017790.016502.026146.025705.025083.024972.0NANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities,us-gaap:BalanceSheetLocation us-gaap:VariableInterestEntityPrimaryBeneficiary,us-gaap:AccountsPayable▇▆▄▁▁▅█55.049.042.027.027.044.058.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities,us-gaap:BalanceSheetLocation us-gaap:VariableInterestEntityPrimaryBeneficiary,us-gaap:AccruedLiabilities▂▁▁▁▄▅█39.034.034.036.049.054.066.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:Liabilities us-gaap:ConsolidatedEntities,us-gaap:BalanceSheetLocation us-gaap:VariableInterestEntityPrimaryBeneficiary,us-gaap:OtherNoncurrentLiabilities▄▆█▆▇▃▁286.0287.0289.0287.0288.0285.0283.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LiabilitiesAndStockholdersEquity ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇▇▇███████▅▃▃▃▃▃▃▂▂▁▁▃▃▃▃45507.045262.044165.044320.045343.044629.046040.046281.046509.045970.045302.047153.046374.047052.046352.046120.048770.047512.046835.047288.048124.048807.049020.050819.051163.050457.050563.049807.034949.028306.027142.026455.025657.024816.024327.021263.020267.017790.016502.026146.025705.025083.024972.0NANANA
us-gaap:StockholdersEquity ▆▆▆▆▆▆▇▇▇▇██▅▅▅▄▄▄▂▃▃▃▃▄▄▄▅▅▄▂▃▃▂▃▂▂▂▁▁▄▄▄▄11512.011702.011769.012065.012212.012354.013363.013621.013848.014406.014660.015610.09345.09473.09656.08109.08306.08444.04643.04860.04830.05691.06148.07387.07928.08212.08777.09129.07863.04616.04864.04948.04694.04795.04752.03092.02961.01940.01793.07909.07716.07537.07288.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AssetsCurrent ▅▄▁▁▄▂▂▁▃▁▂▃▂▄▃▄█▅▂▂▄▁▂▁▁▂▃▃▃▃▂▂▃▃▃▃▂▃▃▅▅▄▄2625.02497.01429.01403.02338.01565.01580.01434.02028.01287.01464.01984.01541.02399.02179.02293.03969.02845.01462.01627.02357.01261.01527.01264.01426.01622.01890.01898.02119.02178.01683.01782.01946.01864.01924.01961.01682.02119.01894.02889.02830.02505.02530.0NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▅▅▁▁▅▂▂▂▄▁▁▁▂▆▄▅█▃▁▁▁▁▁▁▂▂▂▂▄▅▃▄▄▃▄▅▃▅▄▅▅▄▄▅▇▇1201.01126.0142.070.01133.0400.0289.0247.0806.043.0168.042.0275.01292.0899.01172.01918.0639.0170.077.0135.0164.0100.0125.0204.0341.0240.0302.0860.01064.0681.0732.0824.0702.0839.0996.0679.01100.0889.0996.01166.0923.0795.01015.01601.01644.0
us-gaap:ReceivablesNetCurrent ▇█▇▇▅▆▇▄▅▆▇▅▄▂▆▃▁▄▆▄999.01058.0999.01011.0907.0930.0996.0875.0879.0929.0992.0883.0844.0743.0976.0783.0693.0867.0938.0854.0NANA1041.0NANANA1139.0NANANA674.0NANANA688.0NANANANANANANANANANANA
us-gaap:InventoryNet ▄▂▂▃▂▁▂▂▂▂▂▃▃▃▁▂▃▃▂▂▂▂▂▃▃▄▅▇▇▅▄▅▃▄▃▃▃▄▃▇▇▇█194.0144.0136.0157.0134.0105.0125.0129.0134.0129.0130.0153.0153.0160.0113.0144.0150.0148.0138.0120.0122.0142.0127.0156.0168.0200.0231.0284.0276.0222.0194.0230.0174.0190.0175.0161.0159.0186.0169.0287.0282.0264.0303.0NANANA
us-gaap:OtherAssetsCurrent ▄▃▃▃▃▂▃▃▃▃▃▄▄▃▃▃▃▃▃█▃▃▃▃▄▃▃▄▃▂▂▂▂▁▁▂▃▃▃▃▃▃▃231.0169.0152.0165.0164.0130.0170.0183.0209.0186.0174.0242.0269.0204.0191.0194.0204.0168.0216.0538.0182.0174.0217.0200.0235.0206.0213.0224.0193.093.0107.081.083.045.066.0142.0167.0152.0159.0186.0206.0167.0173.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA13424.0NANANA11966.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentGross █████▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▆▆▆▆▃▃▃▃▂▂▂▂▂▁▁▅▅▄▄43543.042970.042489.042384.042092.041772.041510.041647.040868.040541.038661.039953.040863.040467.039513.038712.038898.038342.038912.038461.038351.039606.039039.038761.038070.037198.036435.035568.027380.026484.025823.024934.023937.023197.022546.021600.020835.019601.019082.032159.031442.030816.030435.0NANANA
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment █▇▇▆▆▅▅▄▄▃▃▃▄▃▃▂▂▂▁▁14244.013894.013560.013277.012955.012631.012310.012034.011737.011460.011157.011279.011910.011620.011302.011003.010856.010580.010484.010198.0NANA9460.0NANANA8354.0NANANA7613.0NANANA7079.06916.06779.06637.06502.011186.010842.010475.0-10163.0NANANA
us-gaap:PropertyPlantAndEquipmentNet ██████████▇███▇▇▇▇▇▇▇████▇▇▇▄▃▃▃▃▂▂▂▂▁▁▄▄▄▄29299.029076.028929.029107.029137.029141.029200.029613.029131.029081.027504.028674.028953.028847.028211.027709.028042.027762.028428.028263.028249.029823.029579.029476.029089.028536.028081.027398.019442.018711.018210.017467.016599.015995.015467.014684.014056.012964.012580.020973.020600.020341.020272.0NANANA
us-gaap:IntangibleAssetsNetIncludingGoodwill ▁▁▁▂▂▂▃▃▃▃▂▄▄▅▅▆▇▇██7277.07362.07444.07531.07609.07688.07959.08041.08123.08096.07767.08324.08406.08644.08791.08873.09481.09570.09663.09752.0NANA10017.0NANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OperatingLeaseRightOfUseAsset NANA182.0NANANA207.0213.0221.0223.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ███▇▇▆▇▅▅▅▃▃▂▂▂▂▂▁▁▁▁▂▁▂▂▂▂▂▂▂▁▂▂▁▁▂▂▂▂▂▂▂▂1182.01198.01204.01103.01104.01056.01066.0965.0966.0962.0746.0744.0664.0649.0619.0630.0603.0597.0581.0562.0554.0614.0561.0683.0633.0644.0619.0632.0642.0619.0599.0623.0657.0583.0596.0616.0610.0621.0637.0674.0674.0689.0645.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:AccountsPayableCurrent ▃▃▂▂▅▁▃▃▃▃▄▄▆▅▆▅▄▄▃▃▄▄▄▄▄▄▅▇▆▇▆▇▆▆▆▅▄▄▄█▆▆▆611.0538.0482.0464.0769.0359.0552.0602.0627.0620.0662.0739.0893.0776.0978.0773.0734.0680.0623.0619.0688.0739.0744.0726.0723.0728.0865.01017.0990.01094.0960.01014.0969.0935.0920.0768.0695.0676.0691.01174.0988.0913.0918.0NANANA
us-gaap:AccruedLiabilitiesCurrent ▅▃▄▄▅▆▇▆▆▄▅▅▅▄▆▅▇▇█▅▄▄▅▆▄▃▄▄▂▂▃▂▂▂▂▂▂▁▂▃▄▄▅1005.0855.0944.0965.01043.01129.01276.01184.01199.0974.01102.01117.01063.0887.01167.01079.01275.01322.01448.01059.0903.0939.01078.01225.0924.0801.0900.0895.0655.0704.0797.0700.0691.0624.0628.0609.0599.0529.0631.0801.0915.0872.01002.0NANANA
us-gaap:LiabilitiesCurrent ▇▆▃▂▄▃█▆▆█▂▅▃▃▄▄█▃▅▄▅▅▄▇▇▄▄▅▄▄▃▃▄▂▂▁▁▂▂▄▄▄▄3759.03535.02319.01861.02438.02116.03968.03324.03389.04169.01811.02761.01958.02164.02646.02354.03996.02045.02949.02465.02752.02789.02497.03858.03768.02330.02567.02931.02396.02549.01983.02086.02371.01560.01549.01379.01298.01534.01675.02439.02390.02458.02574.0NANANA
 us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation us-gaap:AccountsPayableAndAccruedLiabilitiesNANA28.0NANANA21.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:OtherAccruedLiabilitiesCurrent NANA304.0NANANA346.0NANANA371.0NANANA221.0NANANA356.0NANANA279.0NANANA342.0NANANA341.0NANANA275.0NANANA271.0NANANA309.0NANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
 us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvesteesNANA3884.0NANANA2532.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DebtAndCapitalLeaseObligations NANA22344.0NANANA22288.0NANANA22414.0NANANA20935.0NANANA23409.0NANANA23988.0NANANA20892.0NANANA11354.0NANANA10736.0NANANA8722.0NANANA9108.0NANANA
us-gaap:LongTermDebtAndCapitalLeaseObligations ▇▇▇▇▇▇▆▆▆▆▇▇▇▇▆▆▇▇▇████▇▇▇▆▆▄▃▂▂▂▂▂▂▁▁▁▁▁▁▁21091.021092.021451.021951.022323.021848.020148.020719.020711.020703.022367.021409.021313.021379.020434.020567.021325.021825.022624.023932.024394.023701.023812.021805.021285.021690.020888.019922.015539.012099.011353.010359.010359.010610.010735.09512.09033.08366.08369.09024.08927.08577.08600.0NANANA
 us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType us-gaap:PensionPlansDefinedBenefitNANA26.0NANANA27.0NANANA53.0NANANA90.0NANANA210.0NANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:MinorityInterest ▂▂▂▂▂▂▂▂▂▁▁▁▄▅▅▅▅▅▇▇▇▇▇█████▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁2753.02771.02814.02833.02868.02905.03001.03238.03233.01319.01337.01349.06102.06430.06519.06773.06875.06965.09403.09364.09592.09933.010077.010873.011243.011369.011395.011552.04059.04101.04057.03998.03277.03075.02675.02899.02666.01784.01290.01344.01329.01342.01331.0NANANA
 us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation us-gaap:OtherNoncurrentLiabilitiesNANA161.0NANANA188.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo NANA28.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree NANA23.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour NANA19.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive NANA17.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive NANA140.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:StockholdersEquity ▆▆▆▆▆▆▇▇▇▇██▅▅▅▄▄▄▂▃▃▃▃▄▄▄▅▅▄▂▃▃▂▃▂▂▂▁▁▄▄▄▄11512.011702.011769.012065.012212.012354.013363.013621.013848.014406.014660.015610.09345.09473.09656.08109.08306.08444.04643.04860.04830.05691.06148.07387.07928.08212.08777.09129.07863.04616.04864.04948.04694.04795.04752.03092.02961.01940.01793.07909.07716.07537.07288.0NANANA
us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest ▅▆▆▆▆▆▆▆▇▆▆▇▆▆▆▆▆▆▅▅▆▆▆▇▇███▅▃▃▃▃▃▃▂▂▁▁▃▃▃▃▃▃▃14265.014473.014583.014898.015080.015259.016364.016859.017081.015725.015997.016959.015447.015903.016175.014882.015181.015409.014046.014224.014422.015624.016225.018260.019171.019581.020172.020681.011922.08717.08921.08946.07971.07870.07427.05991.05627.03724.03083.09253.09045.08879.08619.08176.09026.08962.0
us-gaap:CommonStockValue ████████████▄▄▄▄▄▄▃▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁1249.01249.01248.01248.01248.01248.01247.01247.01246.01246.01245.01245.0862.0862.0861.0861.0861.0861.0785.0785.0785.0785.0784.0784.0784.0783.0782.0782.0782.0720.0718.0718.0718.0717.0716.0662.0661.0630.0626.0623.0623.0622.0620.0NANANA
us-gaap:AdditionalPaidInCapitalCommonStock ████████████▅▅▅▅▅▅▄▄▄▄▄▄▄▄▄▄▄▂▂▂▂▂▂▂▁▁▁▁▁▁▁24401.024384.024371.024359.024343.024330.024323.024310.024296.024703.024693.024680.018552.018533.018508.018492.018471.018445.014887.014930.014849.014833.014807.014833.014812.014779.014925.014925.014890.011545.011599.011582.011274.011258.011134.09449.09305.08269.08417.08368.08351.08302.08269.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▁▁▁▁▁▂▂▂▂▂▃▃▃▃▃▃▃▃▃▃▃▃▄▄▅▅▅▅▄▅▅▅▅▅▅▅▅▅▅████-13022.0-12825.0-12748.0-12376.0-12197.0-12013.0-11002.0-10664.0-10423.0-10270.0-10002.0-9018.0-8735.0-8587.0-8434.0-9872.0-9654.0-9487.0-9649.0-9483.0-9394.0-8508.0-7960.0-6764.0-6243.0-5914.0-5548.0-5315.0-6574.0-6385.0-6248.0-5973.0-5863.0-5765.0-5695.0-5648.0-5607.0-5551.0-5820.033.0-122.0-230.0-478.0NANANA
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▇██▆▆▆▆▄▄▄▄▄▄▄▅▃▃▃▃▃▂▂▁▁▂▂▃▅▆▅▆▃▂▂▃▃▃▂▂██▇█-110.0-100.0-96.0-160.0-176.0-205.0-199.0-266.0-265.0-267.0-270.0-291.0-293.0-294.0-238.0-331.0-331.0-334.0-339.0-331.0-369.0-378.0-442.0-425.0-384.0-395.0-341.0-222.0-194.0-223.0-164.0-338.0-394.0-374.0-362.0-330.0-357.0-367.0-389.0-74.0-95.0-116.0-82.0NANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedDefinedBenefitPlansAdjustment███▇▇▆▆▅▅▅▅▅▅▅▆▄▄▄▄▄▄▄▄▄▄▄▄▅▅▅▅▂▁▁▁-86.0-89.0-92.0-157.0-173.0-202.0-196.0-263.0-262.0-264.0-267.0-278.0-282.0-291.0-235.0-326.0-330.0-334.0-337.0-329.0-333.0-334.0-338.0-352.0-359.0-365.0-371.0-276.0-281.0-286.0-291.0-475.0-511.0-521.0-530.0NANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges▁▅▇▇▇▇▇▇▇▇▇▄▅▇▇▇██▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇-23.0-10.0-3.0-2.0-2.0-2.0-2.0-2.0-2.0-2.0-2.0-12.0-10.0-2.0-2.0-3.01.02.00.00.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0NANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedOtherComprehensiveIncome███▇▆▆▆▅▅▅▄▄▄▄▅▃▃▃▃▃▂▂▁▁▂-110.0-100.0-96.0-160.0-176.0-205.0-199.0-266.0-265.0-267.0-270.0-291.0-293.0-294.0-238.0-331.0-331.0-334.0-339.0-331.0-369.0-378.0-442.0-425.0-384.0NA-341.0NANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents us-gaap:AccumulatedTranslationAdjustment▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▃▃▁▂▃▃▄▅▆▅▇▇▇▇█-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-2.0-2.0-2.0-2.0-2.0-35.0-43.0-103.0-72.0-24.0-29.031.055.088.064.0128.0138.0118.0148.0169.0NANANANANANANANANANANA
us-gaap:MinorityInterest ▂▂▂▂▂▂▂▂▂▁▁▁▄▅▅▅▅▅▇▇▇▇▇█████▃▃▃▃▂▂▂▂▂▁▁▁▁▁▁2753.02771.02814.02833.02868.02905.03001.03238.03233.01319.01337.01349.06102.06430.06519.06773.06875.06965.09403.09364.09592.09933.010077.010873.011243.011369.011395.011552.04059.04101.04057.03998.03277.03075.02675.02899.02666.01784.01290.01344.01329.01342.01331.0NANANA
us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders ▄▅▄▅▅▅▄▄▄▄▄▆▇▆▆▆▇▇▇▇▇▇▇▇▇▇█▇▆▆▆▅▅▅▅▅▇▃▅▅▃▃▁▄▄▄41.054.038.049.054.044.038.018.027.041.039.0196.0215.0187.0204.0204.0217.0258.0225.0237.0242.0236.0238.0242.0234.0228.0331.0213.0149.0147.0145.0120.0119.0105.0103.094.0289.0-99.055.054.0-53.0-52.0-244.033.0-34.0-32.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄▅▂▆▄▅▄▅▄▅▃▄▃▃▂▃▃█▃▃▄▃▃▄▃▅▁▁▂▂▂▃▂▂▂▂▂▅▃▄▄▃▃▃▃1057.0915.01114.0452.01143.0787.0991.0858.01069.0775.0962.0746.0891.0694.0719.0569.0662.0606.01582.0618.0685.0779.0592.0603.0814.0669.01011.0345.0313.0446.0515.0539.0668.0495.0546.0431.0424.0434.01087.0668.0873.0811.0710.0644.0680.0617.0
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▆▆▆▆▆▇▆▇▆▆▆▆█▆▇▇▇▆▆▆▆▆▆▆▆▁▆▆▆▆▆▄▆▅▆▆▆▆▆▅▅▆▆-443.0-257.0-476.0-412.0-341.0-329.0-483.0-920.0-166.0-1258.0258.0-1314.0-871.0-798.0-423.01566.0-388.0-122.0-16.0346.0-400.0-346.0-592.0-705.0-1246.0-756.0-1147.0-1074.0-6944.0-992.0-1149.0-1177.0-918.0-808.0-3241.0-790.0-2399.0-491.0-1015.0-789.0-620.0-579.0-1824.0-1539.0-498.0-435.0
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▃▂▃▃▃▃▃▃▂▃▂▄▃▁▄▃▂▂▃▃▃▃▃▃▃▃█▄▄▄▃▃▅▄▄▃▃▃▃▃▄▃▃▃-539.0326.0-566.0-1103.0-69.0-347.0-466.0-497.0-140.0358.0-1094.0335.0-1037.0497.0-569.0-2881.01005.0-15.0-1473.0-1036.0-300.0-369.0-25.023.0295.0188.074.0171.06427.0929.0583.0546.0372.0176.02538.0676.01554.0268.0-179.0-49.0-10.0-104.0894.0309.0-225.0-405.0
us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect ▅█▅▁▇▅▅75.0984.072.0-1063.0733.0111.042.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:DeferredIncomeTaxExpenseBenefit ▆▆▆▆▆▅▆▆▆▆▅▆▆▆▁▆▆▆▆▆▅▆▅▆▆▆▆█▆▆▆▆▆▆▆▆▆▆▅▆▆▆▆▅▆▆118.0144.056.0111.0118.0-177.0111.086.0107.075.0-131.0209.069.073.0-2111.08.063.028.048.068.0-144.02.0-378.0-67.080.028.0220.01013.0106.0-93.0123.035.0163.0103.091.03.031.087.0-146.0-9.097.0-6.038.0-240.021.028.0
us-gaap:DepreciationDepletionAndAmortization █▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇█▇▇███▇▇▇▆▆▂▂▂▂▂▂▂▂▁▁▇▇▇▆▇▆▆▆463.0438.0436.0426.0430.0429.0439.0435.0424.0416.0435.0425.0434.0431.0428.0433.0433.0442.0437.0435.0446.0445.0451.0432.0428.0427.0379.0369.0214.0214.0209.0207.0198.0210.0211.0196.0181.0168.0412.0418.0403.0381.0406.0374.0366.0361.0
us-gaap:IncreaseDecreaseInAccountsPayable ▅▄▅▁█▃▄▄▄▄▄▄▅▂▅▄▄▄▅▄▄▄▅▃▄▃▃▅▄▄▄▄▄▄▅▄▃▃▅▅▅▅▅▄▃▄56.038.070.0-313.0391.0-155.030.022.0-59.0-39.0-17.0-6.0127.0-197.071.018.0-3.032.041.0-28.035.0-23.047.0-89.027.0-75.0-68.094.0-18.0-16.012.0-25.0-28.06.055.09.0-106.0-68.085.056.063.046.058.017.0-76.0-13.0
us-gaap:IncreaseDecreaseInInventories █▅▃▆▆▃▅▄▄▄▃▅▄▇▂▄▄▆▆▅▄▅▃▄▂▂▁▅█▆▂█▃▅▅▄▃▆▂▅▆▂▇▄50.08.0-22.024.028.0-19.02.0-3.0-3.0-1.0-23.06.0-7.040.0-31.0-7.00.030.018.04.0-13.016.0-29.0-12.0-32.0-32.0-53.08.054.027.0-36.055.0-15.013.014.0-9.0-27.017.0-45.05.018.0-38.032.0-8.0NANA
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▄▅▂▆▄▅▄▅▄▅▃▄▃▃▂▃▃█▃▃▄▃▃▄▃▅▁▁▂▂▂▃▂▂▂▂▂▅▃▄▄▃▃▃▃1057.0915.01114.0452.01143.0787.0991.0858.01069.0775.0962.0746.0891.0694.0719.0569.0662.0606.01582.0618.0685.0779.0592.0603.0814.0669.01011.0345.0313.0446.0515.0539.0668.0495.0546.0431.0424.0434.01087.0668.0873.0811.0710.0644.0680.0617.0
us-gaap:NetIncomeLoss ▅▅▄▅▅▃▄▅▅▄▃▄▄▄█▄▄▅▄▄▃▄▂▄▄▄▄█▄▄▄▄▄▄▄▄▄▅▃▅▅▅▄▁▄▄304.0426.0116.0309.0303.0-517.0124.0221.0310.0195.0-571.0129.0135.0152.01687.033.081.0373.0-15.061.0-405.0-65.0-715.0-40.0114.070.0193.01678.0103.0140.0-14.0141.0142.0161.0149.0155.0132.0423.0-444.0272.0227.0321.0174.0-1263.0185.0-193.0
us-gaap:ProfitLoss ▅▅▄▅▅▃▄▅▅▅▃▅▅▅█▄▅▅▄▄▃▄▁▄▄▄▅█▄▅▄▅▅▅▅▅▄▅▃▅▅▅▅▁▅▄322.0435.0130.0323.0315.0-570.0-66.0242.0324.0214.0-546.0200.0269.0270.01622.0125.0193.0569.037.0131.0-505.0-13.0-1337.0-173.0183.013.0308.01708.0127.0196.049.0197.0192.0230.0202.0203.0165.0495.0-362.0342.0297.0384.0228.0-1226.0222.0-146.0
us-gaap:ShareBasedCompensation ▆▇▃▄▄▁▃▄▅▄▃▃▅▄▅▅█▇▆▇▃▇▅▆██▅▃▃▂▁▁▂▁▁▁▁▁▅▂▂▄▂▂▃▄19.020.013.015.015.09.013.014.016.014.012.013.016.014.017.017.023.021.018.021.013.021.017.019.023.023.017.013.012.011.09.08.011.09.09.09.09.09.016.011.011.014.011.011.012.014.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▆▆▆▆▆▆▇▆▇▆▆▆▆█▆▇▇▇▆▆▆▆▆▆▆▆▁▆▆▆▆▆▄▆▅▆▆▆▆▆▅▅▆▆-443.0-257.0-476.0-412.0-341.0-329.0-483.0-920.0-166.0-1258.0258.0-1314.0-871.0-798.0-423.01566.0-388.0-122.0-16.0346.0-400.0-346.0-592.0-705.0-1246.0-756.0-1147.0-1074.0-6944.0-992.0-1149.0-1177.0-918.0-808.0-3241.0-790.0-2399.0-491.0-1015.0-789.0-620.0-579.0-1824.0-1539.0-498.0-435.0
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▂▁▁▂▁▁▂▅▃▂▄▅▇▇▅▄▃▃▃▃▃▃▅▅▆▆███▅▇▇▆▅▆425.0260.0301.0325.0307.0306.0404.0786.0497.0422.0597.0769.0933.0957.0699.0644.0545.0511.0474.0508.0556.0513.0742.0771.0822.0832.01088.01104.01046.0793.01030.01012.0817.0713.0877.0NANANANANANANANANANANA
 us-gaap:PaymentsToAcquireProductiveAssets us-gaap:StatementBusinessSegments,wmb:AssetAcquisition us-gaap:CorporateAndOther,wmb:A2021WamsutterFieldAcquisition86.0NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsToAcquireProductiveAssets us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:PaymentsToAcquireProductiveAssets wmb:AssetAcquisition wmb:A2021WamsutterBasinAcquisitionNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
us-gaap:NetCashProvidedByUsedInFinancingActivities ▃▃▃▂▃▃▃▃▃▃▂▃▂▄▃▁▄▃▂▂▃▃▃▃▃▃▃▃█▄▄▄▃▃▅▄▄▃▃▃▃▃▄▃▃▃-539.0326.0-566.0-1103.0-69.0-347.0-466.0-497.0-140.0358.0-1094.0335.0-1037.0497.0-569.0-2881.01005.0-15.0-1473.0-1036.0-300.0-369.0-25.023.0295.0188.074.0171.06427.0929.0583.0546.0372.0176.02538.0676.01554.0268.0-179.0-49.0-10.0-104.0894.0309.0-225.0-405.0
us-gaap:ProceedsFromIssuanceOfLongTermDebt ▁▂▁▁▄▃▁▁▁▂▁▃▁▄▁▁▄▂▂▃▃▅▅▃▂█▃▃▆▃▂▁▂▂▃▃▂▁▄▂▁▁▂▂▁▆1.0897.01.02.02194.01702.031.016.012.0708.0181.01566.0131.02048.0320.0370.02173.0470.0820.01205.01815.02688.02887.01165.0465.05255.01187.01199.03439.01496.0994.00.0935.0770.01377.01609.0500.00.02072.0675.0350.075.0950.0430.00.03749.0
us-gaap:RepaymentsOfLongTermDebt ▁▁▁▂▄▄▁▁▁▃▁▄▂▃▂▆▂▅▅▄▄▅▃▂▃█▃▃▁▁▁▁▃▃▁▃▁▁▃▂▁▁▂▂▁█6.05.05.0610.01708.01518.05.036.04.0864.03.01440.0701.01060.0450.02765.0710.02000.02125.01665.01310.01991.0953.0641.01274.03648.0964.0864.00.00.00.00.01186.0895.0155.01133.0155.025.01231.0599.0150.075.0352.0438.0108.03407.0
us-gaap:PaymentsOfDividendsCommonStock ██████▇▇▇▇▇▇▅▄▄▄▄▄▂▂████▇▇▇▇▅▄▄▄▄▄▃▃▃▂▂▂▂▁▁▁▁▁498.0498.0485.0485.0486.0485.0460.0461.0461.0460.0412.0411.0282.0281.0248.0248.0248.0248.0150.0150.0481.0480.0480.0480.0442.0434.0426.0419.0291.0276.0260.0250.0241.0231.0204.0196.0188.0154.0148.0118.0118.073.074.073.073.064.0
  2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31

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
Value124912491248124812481248124712471246124612451245862862861861861861785785785785784784784783782782782720718718718717716662661630626623623622620618
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 Assets2.72.82.82.82.82.82.72.72.72.72.72.61.91.81.91.91.81.81.71.71.61.61.61.51.51.61.51.62.22.52.62.72.82.92.93.13.33.53.82.42.42.52.52.4

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesIssued


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
Value124912491248124812481248124712471246124612451245862862861861861861785785785785784784784783782782782720718718718717716662661630626623623622620618
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Authorized

us-gaap:CommonStockSharesAuthorized

us-gaap:CommonStockSharesAuthorized


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value147014701470147014701470147014701470147014701470960960960960960960960960960960960960960960960960960960960960960960960960960960960960960960960
Percentage of CommonStockSharesAuthorized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of 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
Value121712171215121412131214121412131026830830829828826751750750749752752752700688687686687632626600597597596584592583
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
Value121512141213121312131212121212111023827827826826824750750750749749748747696684683682682626621593588588586584584583
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

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareBasic


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.250.350.090.250.25-0.430.10.180.260.16-0.630.130.160.182.040.040.10.45-0.020.08-0.54-0.09-0.95-0.050.150.090.242.240.150.2-0.020.210.210.240.230.250.210.71-0.750.460.390.550.29-2.160.32-0.33
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted

us-gaap:EarningsPerShareDiluted


Earnings
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.250.350.090.250.25-0.430.10.180.260.16-0.620.130.160.182.030.040.10.45-0.020.08-0.54-0.09-0.95-0.050.150.090.242.220.150.2-0.030.20.210.230.220.250.210.7-0.740.460.380.540.29-2.160.31-0.33
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:ComprehensiveIncomeNetOfTax


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value294422180325332-523.0191220312198-550.013413615717803384378-23.099-396.0-1.0-732.0-81.012516741650132101160197122149117182142445-540.0293248287
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.016.10.016.918.8-27.60.011.115.49.70.05.96.67.60.01.74.419.00.05.2-22.8-0.10.0-4.56.80.90.079.77.95.80.012.16.98.20.010.47.722.00.010.89.311.1

Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest

us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest


Comprehensive
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value189.0141412-53.0-190.02114192572130119-64.08911219752108-98.081-638.0-157.074-92.0101123756635650694940477082707063
Percentage of ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.30.00.70.7-2.80.01.10.70.90.03.26.35.70.04.75.89.90.05.7-5.64.90.0-8.74.0-5.40.00.62.23.20.03.52.83.80.02.32.53.50.02.62.62.4

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
Value312431194339344-576.01.0241326217-525.0206266276171612219657529207-494.080-1370.0-238.0199-76.01751662169157223253172218166222189515-458.0363318350114-1134.015727
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 RevenueFromContractWithCustomerExcludingAssessedTax13.716.40.017.719.5-30.30.012.116.110.70.09.012.813.30.06.510.228.90.010.9-28.54.80.0-13.210.8-4.40.080.310.19.00.015.69.712.00.012.710.225.50.013.411.913.60.0-49.36.91.0

Cost Of Goods And Service Excluding Depreciation Depletion And Amortization

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization

us-gaap:OilAndGasPurchased


Cost
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
Value697932498380271396519434483525668790
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.735.50.019.815.320.90.021.923.925.80.034.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OilAndGasPurchased0.00.00.00.00.00.00.00.00.00.00.00.0

wmb:NaturalGasPurchasedForShrink


Cost
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
Value182119211513221924404630
Percentage of CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization2.62.33.85.55.53.34.24.45.07.66.93.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.80.01.10.80.70.01.01.22.00.01.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NaturalGasPurchasedForShrink0.00.00.00.00.00.00.00.00.00.00.00.0

Costs And Expenses

us-gaap:CostsAndExpenses

us-gaap:CostsAndExpenses


Costs
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
Value16831873157412921169148218731371154314932838180216811597241516141543155516171560222413982755144314471489161017621367132913971287141713841622133614641492173214671479
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax74.171.20.067.466.278.10.069.176.373.40.079.081.077.00.085.480.278.20.081.9128.184.20.080.278.786.80.085.281.576.00.079.380.276.50.076.379.373.90.054.355.4

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest


Income
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-30
Value441576185434432-774.040319422283-705.0390321325-478.014925860686200-650.0-11.0-1784.0-238.0266434242706207247191260302327283277237492-31.04024453381669-1371.0329
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.421.90.022.624.5-40.80.016.120.913.90.017.115.515.70.07.913.430.50.010.5-37.4-0.70.0-13.214.52.50.0130.812.314.10.016.017.118.10.015.812.824.40.014.916.713.10.0-59.614.4

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
Value11914155111117-204.091779869-159.01905255-2100.02465374969-145.02.0-447.0-65.0833011699884511416210296797771133-70.055145-6.0110-150.0104-94.0
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 RevenueFromContractWithCustomerExcludingAssessedTax5.25.40.05.86.6-10.70.03.94.83.40.08.32.52.70.01.33.41.90.03.6-8.40.10.0-3.64.51.70.048.25.02.90.03.85.85.30.04.43.86.60.02.05.4-0.20.0-6.54.5-3.6

Interest Expense

us-gaap:InterestExpense

us-gaap:InterestExpense


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value298294290292294296298296296296294270275273265267271280293297298291268263262251234210163140
Percentage of InterestExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.111.20.015.216.615.60.014.914.614.60.011.813.313.20.014.114.114.10.015.617.217.50.014.614.214.60.010.19.78.0

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423-444.0272227321174-1263.0185-193.0
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 RevenueFromContractWithCustomerExcludingAssessedTax13.416.20.016.117.2-27.20.011.115.39.60.05.76.57.30.01.74.218.80.03.2-23.3-3.90.0-2.26.24.10.081.16.18.00.08.78.08.90.08.87.221.00.010.18.512.50.0-54.98.1-7.4

Net Income Loss Attributable To Noncontrolling Interest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest

us-gaap:NetIncomeLossAttributableToNoncontrollingInterest


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
Value189.0141412-53.0-190.02114192571134118-65.0921121965270-100.052-622.0-133.069-57.011530245663565069534833728270706354373747
Percentage of NetIncomeLossAttributableToNoncontrollingInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.30.00.70.7-2.80.01.10.70.90.03.16.55.70.04.95.89.90.03.7-5.83.10.0-7.43.8-3.30.01.41.43.20.03.52.83.80.02.71.83.60.02.62.62.40.01.61.61.8

Net Income Loss Available To Common Stockholders Basic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic

us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic


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
Value304425115308303-518.0123220310194-572.0129135152168733
Percentage of NetIncomeLossAvailableToCommonStockholdersBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.416.20.016.117.2-27.30.011.115.39.50.05.76.57.30.01.7

Operating Costs And Expenses

us-gaap:OperatingCostsAndExpenses

us-gaap:OperatingCostsAndExpenses


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value379360333336320337377364387340373389388357428400389368401394394391428403437387474412308298277269291260261261275230
Percentage of OperatingCostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.713.70.017.518.117.80.018.319.116.70.017.118.717.20.021.220.218.50.020.722.723.60.022.423.822.60.019.918.417.00.016.616.514.40.014.914.911.4

Operating Income Loss

us-gaap:OperatingIncomeLoss

us-gaap:OperatingIncomeLoss


Operating
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value600739518641612431234628498561-634.0501410491-187.0277381433581345-488.0262-749.0356392227531307311420263336350426380373332527346494547480439-1290.0416479
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax26.428.10.033.434.722.70.031.624.627.60.022.019.823.70.014.619.821.80.018.1-28.115.80.019.821.313.20.014.818.524.00.020.719.823.50.021.318.026.10.018.320.518.60.0-56.118.218.5

Other Comprehensive Income Loss Net Of Tax

us-gaap:OtherComprehensiveIncomeLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value-10.0-4.0641629-6.067-1.02.03.0216.0-3.06.094-3.03.06.0-8.0761193-33.0-65.016-89.0-133.0-46.042-39.017456-20.0-12.0-36.0192420-96.021
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 RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.20.00.81.6-0.30.0-0.10.10.10.00.3-0.10.30.0-0.20.20.30.04.00.65.60.0-3.60.9-5.20.0-2.22.5-2.20.03.5-1.1-0.70.01.11.31.00.00.8

us-gaap:OtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value3.03.0651629-6.067114.0914.04.03.0-8.04.01.04.0147.06.06.0-95.05.05.05.01843610.09.0
Percentage of OtherComprehensiveIncomeLossNetOfTax-30.0-75.0101.6100.0100.0100.0100.052.466.796.8-133.3133.350.0100.05.39.14.3-42.4-10.837.5-6.771.4-10.911.9-12.8105.764.3-50.0-75.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.00.81.6-0.30.00.00.20.00.20.20.20.00.20.10.20.00.40.30.30.00.20.30.30.02.20.60.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-31
Value-13.0-7.00.00.00.010.01.01.0-4.0-1.02.00.01.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of OtherComprehensiveIncomeLossNetOfTax130.0175.00.0-0.00.047.616.71.1133.3-33.333.3-0.01.30.00.0-0.0-0.00.0-0.0-0.0-0.00.0-0.00.00.0-0.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.6-0.30.00.00.00.00.00.0-0.2-0.10.10.00.10.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-10.0-4.0641629-6.067-1.02.03.0215.01.05.0930.03.05.0-8.0389.064-17.0-41.011-54.0-119.0-28.029-39.017456-20.0-12.0-32.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.083.3-33.383.398.9-0.0100.083.3100.050.081.868.851.563.168.860.789.560.969.0100.0100.0100.0100.0100.088.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.20.00.81.6-0.30.0-0.10.10.10.00.20.00.20.00.00.20.30.02.00.53.90.0-2.30.6-3.10.0-1.41.7-2.20.03.5-1.1-0.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-10.0-4.0641629-6.067-1.02.03.0215.01.05.0930.03.05.0-8.0389.064-17.0-41.011-54.0-119.0-28.029-39.017456-20.0-12.0-32.0
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.083.3-33.383.398.9-0.0100.083.3100.050.081.868.851.563.168.860.789.560.969.0100.0100.0100.0100.0100.088.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.20.00.81.6-0.30.0-0.10.10.10.00.20.00.20.00.00.20.30.02.00.53.90.0-2.30.6-3.10.0-1.41.7-2.20.03.5-1.1-0.70.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other 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
Value2.0-2.0-29.0-23.05.04.0141.07.011-7.0522621-117.020217422201715322034161610.04.01.0-1.01.02.0-2.0-1.00.03.0-4.07.00.0-2.04.00.0-4.0-1.0-7.0
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.1-0.10.0-1.20.30.20.00.10.30.50.02.31.31.00.01.11.13.70.01.01.00.90.01.11.80.90.00.50.20.10.00.10.1-0.10.00.00.2-0.20.00.0-0.10.20.0-0.2-0.0-0.3

Preferred Stock Dividends Income Statement Impact

us-gaap:PreferredStockDividendsIncomeStatementImpact

us-gaap:PreferredStockDividendsIncomeStatementImpact


Preferred
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
Value01000000.01000000.01000000.001000000.01000000.01000000.001000000.01000000.000000
Percentage of PreferredStockDividendsIncomeStatementImpact0.0100.0100.0100.00.0100.0100.0100.00.0100.0100.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.00.00.00.10.00.10.00.10.00.00.00.00.00.00.00.0

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
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
Value322435130323315-570.0-66.0242324214-546.0200269270162212519356937131-505.0-13.0-1337.0-173.018313308170812719649197192230202203165495-362.0342297384228-1226.0222-146.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.216.50.016.817.8-30.00.012.216.010.50.08.813.013.00.06.610.028.60.06.9-29.1-0.80.0-9.610.00.80.082.67.611.20.012.110.912.70.011.68.924.50.012.711.114.90.0-53.39.7-5.6

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
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
Value189.0141412-53.0-190.02114192571134118-65.0921121965270-100.052-622.0-133.069-57.011530245663565069534833728270706354373747
Percentage of ProfitLoss5.62.110.84.33.89.3287.98.74.38.9-4.635.549.843.7-4.073.658.034.4140.553.419.8-400.046.576.937.7-438.537.31.818.928.6128.628.426.030.026.223.620.014.5-22.720.523.616.423.7-3.016.7-32.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.30.00.70.7-2.80.01.10.70.90.03.16.55.70.04.95.89.90.03.7-5.83.10.0-7.43.8-3.30.01.41.43.20.03.52.83.80.02.71.83.60.02.62.62.40.01.61.61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
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
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423-444.0272227321174-1263.0185-193.0
Percentage of ProfitLoss94.497.989.295.796.290.7-187.991.395.791.1104.664.550.256.3104.026.442.065.6-40.546.680.2500.053.523.162.3538.562.798.281.171.4-28.671.674.070.073.876.480.085.5122.779.576.483.676.3103.083.3132.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.416.20.016.117.2-27.20.011.115.39.60.05.76.57.30.01.74.218.80.03.2-23.3-3.90.0-2.26.24.10.081.16.18.00.08.78.08.90.08.87.221.00.010.18.512.50.0-54.98.1-7.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423
Percentage of ProfitLoss94.497.989.295.796.290.7-187.991.395.791.1104.664.550.256.3104.026.442.065.6-40.546.680.2500.053.523.162.3538.562.798.281.171.4-28.671.674.070.073.876.480.085.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.416.20.016.117.2-27.20.011.115.39.60.05.76.57.30.01.74.218.80.03.2-23.3-3.90.0-2.26.24.10.081.16.18.00.08.78.08.90.08.87.221.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22702629207119181766189821001985202120342181228020752073222818911924198821981905173616602006179918391716214120691678174916601623176718101869175218462019-17.02703266925752436230022892591
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService

us-gaap:Product


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7761145531414310411553466496550680811657636769581534431519560598519796942853930884887104611041159107711791342
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.243.625.621.617.621.726.323.524.527.031.235.631.730.734.530.730.826.025.931.132.530.237.245.550.853.253.354.759.261.062.061.563.966.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.243.625.621.617.621.726.323.524.527.031.235.631.730.734.530.730.826.025.931.132.530.237.245.550.853.253.354.759.261.062.061.563.966.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service


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
Value1494148415401501145614871547151714891440144013711340135114591310
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.856.474.478.382.478.373.776.473.770.866.060.164.665.265.569.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax65.856.474.478.382.478.373.776.473.770.866.060.164.665.265.569.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales


Revenue
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value531417310411553468492550676801656627
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.621.717.621.726.323.624.327.031.035.131.630.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax25.621.717.621.726.323.624.327.031.035.131.630.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceCommodityConsideration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value514936402528453856648412194101
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.91.72.11.41.52.11.92.83.13.95.34.54.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.91.72.11.41.52.11.92.83.13.95.34.54.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceCommodityConsideration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceMonetaryConsideration


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value657638716688664688725716750693713749730729
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.924.334.635.937.636.234.536.137.134.132.732.935.235.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax28.924.334.635.937.636.234.536.137.134.132.732.935.235.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceMonetaryConsideration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:OtherService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value6762686566546453504341343440
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.43.33.43.72.83.02.72.52.11.91.51.61.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.43.33.43.72.83.02.72.52.11.91.51.61.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:RegulatedService


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value719735720708701717713710673684666566558572
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.728.034.836.939.737.834.035.833.333.630.524.826.927.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.728.034.836.939.737.834.035.833.333.630.524.826.927.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:RegulatedService100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService, us-gaap:SubsegmentsConsolidationItems

us-gaap:Product, us-gaap:CorporateAndOther


Revenue
Period End2021-06-302021-03-312018-09-30
Value44560.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.10.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product us-gaap:CorporateAndOther100.0100.00.0

us-gaap:Product, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312018-09-30
Value-87.0-90.0-31.0-29.0-120.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.8-3.4-1.8-1.5-5.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.8-3.4-1.8-1.5-5.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0

us-gaap:Product, wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312018-09-30
Value24321.02969
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.20.11.53.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.20.11.53.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:NortheastMidstream100.0100.0100.0100.0100.0

us-gaap:Product, wmb:Transco


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312018-09-30
Value1614202041
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.51.11.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.70.51.11.11.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:Transco100.0100.0100.0100.0100.0

us-gaap:Product, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-06-302020-03-31
Value53531732
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.01.01.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.01.01.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0

us-gaap:Product, wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312018-09-30
Value7261080303359732
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.041.117.218.932.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax32.041.117.218.932.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:WestMidstream100.0100.0100.0100.0100.0

us-gaap:Service, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-32.0-28.0-22.0-24.0-29.0-26.0-22.0-22.0-24.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-1.1-1.4-1.5-1.3-1.1-1.1-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.4-1.1-1.1-1.4-1.5-1.3-1.1-1.1-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value369355375350355349328276247
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.313.519.619.818.717.616.213.610.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.313.519.619.818.717.616.213.610.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:NorthwestPipeline


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value108113111110115111110114110
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:NorthwestPipeline100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:Transco


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value615628603594607601566570457
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.123.931.433.632.030.328.028.020.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.123.931.433.632.030.328.028.020.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:Transco100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value1071009491110132143145
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.73.84.95.25.86.67.17.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.73.84.95.25.86.67.17.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value327316340335329350404401517
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.412.017.719.017.317.620.019.722.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.412.017.719.017.317.620.019.722.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales, us-gaap:IntersegmentElimination


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-36.0-31.0-29.0-28.0-46.0-58.0-117.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.9-1.8-1.5-1.4-2.3-2.9-5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.9-1.8-1.5-1.4-2.3-2.9-5.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales, wmb:NortheastMidstream


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value121.02930374769
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.11.51.51.82.33.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.60.11.51.51.82.33.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales, wmb:Transco


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value21202041232441
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.11.12.11.11.21.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.11.12.11.11.21.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales wmb:Transco100.0100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value261732344858
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.01.71.72.42.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.41.01.71.72.42.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0

wmb:NGLAndNaturalGasProductSales, wmb:WestMidstream


Revenue
Period End2020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value394303359391430479720
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.517.218.919.721.323.531.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax20.517.218.919.721.323.531.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NGLAndNaturalGasProductSales wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceCommodityConsideration, wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2.03.02.01.02.01.03.05.05.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.10.20.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceCommodityConsideration wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceCommodityConsideration, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value10.0116.03.05.07.01313
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.30.20.30.40.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.30.20.30.40.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceCommodityConsideration wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceCommodityConsideration, wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value393532212130404697
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.31.71.21.11.52.02.34.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.31.71.21.11.52.02.34.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceCommodityConsideration wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceMonetaryConsideration, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-26.0-21.0-17.0-19.0-22.0-19.0-17.0-18.0-19.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-0.8-0.9-1.1-1.2-1.0-0.8-0.9-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-0.8-0.9-1.1-1.2-1.0-0.8-0.9-0.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceMonetaryConsideration us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceMonetaryConsideration, wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value315311332308312310291239219
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.911.817.317.416.415.614.411.89.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.911.817.317.416.415.614.411.89.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceMonetaryConsideration wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceMonetaryConsideration, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value9086857899117121128
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.03.34.44.45.25.96.06.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.03.34.44.45.25.96.06.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceMonetaryConsideration wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceMonetaryConsideration, wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value278262288297299308355344409
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.210.015.016.815.815.517.616.917.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.210.015.016.815.815.517.616.917.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceMonetaryConsideration wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:OtherService, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-4.0-4.0-2.0-4.0-5.0-5.0-3.0-4.0-4.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.2-0.2-0.1-0.2-0.3-0.3-0.1-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.2-0.2-0.1-0.2-0.3-0.3-0.1-0.2-0.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:OtherService, wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value524141414138343223
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.62.12.32.21.91.71.61.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.31.62.12.32.21.91.71.61.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:OtherService, wmb:Transco


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value2.03.03.02.03.00.01.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.20.10.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.20.10.20.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService wmb:Transco100.0100.0100.0100.0100.00.0100.00.00.0

wmb:OtherService, wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value7.03.03.010.06.08.09.04.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.20.60.30.40.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.30.10.20.60.30.40.40.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0100.0100.0

wmb:OtherService, wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value10.01920179.0129.01111
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.71.01.00.50.60.40.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.71.01.00.50.60.40.50.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:OtherService wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:RegulatedService, us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-2.0-3.0-3.0-1.0-2.0-2.0-2.00.0-1.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.2-0.1-0.1-0.1-0.10.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.2-0.1-0.1-0.1-0.10.0-0.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:RegulatedService us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.00.0100.0

wmb:RegulatedService, wmb:NorthwestPipeline


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value108113111110115111110114110
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:RegulatedService wmb:NorthwestPipeline100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:RegulatedService, wmb:Transco


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value613625600592604601565570457
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.023.831.333.531.830.328.028.020.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.023.831.333.531.830.328.028.020.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:RegulatedService wmb:Transco100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:SubsegmentsConsolidationItems

us-gaap:CorporateAndOther


Revenue
Period End2021-06-302021-03-312020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value44560.00.00.00.00.01.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.10.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.10.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther100.0100.00.00.00.00.00.0100.0

us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-119.0-118.0-58.0-55.0-58.0-54.0-68.0-80.0-144.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.2-4.5-3.0-3.1-3.1-2.7-3.4-3.9-6.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.2-4.5-3.0-3.1-3.1-2.7-3.4-3.9-6.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value393387387351384379365323316
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.314.720.219.920.219.118.115.913.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.314.720.219.920.219.118.115.913.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NortheastMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NorthwestPipeline


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value108113111110115111110114110
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NorthwestPipeline100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:Transco


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value631642624614627642589594498
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.824.432.534.833.032.329.129.221.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.824.432.534.833.032.329.129.221.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:Transco100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value160153120108142166191203
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.05.86.36.17.58.49.510.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.05.86.36.17.58.49.510.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:TransmissionAndGulfOfMexicoMidstream100.0100.0100.0100.0100.0100.0100.0100.0

wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value105313967346386887418348801249
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.453.138.336.136.237.341.343.354.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.453.138.336.136.237.341.343.354.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:WestMidstream100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues

us-gaap:Revenues


Revenues
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value22832612209219331781191321071999204120542204230320912088222818911924198821981905173616602006179918391716214120691678174916601623176718101869175218462019-17.02703266925752436230022892591
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.699.4101.0100.8100.8100.8100.3100.7101.0101.0101.1101.0100.8100.7100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Revenuesus-gaap:
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
Value-120.0-121.0-76.0-61.0-58.0-61.0-70.0-58.0-68.0-83.0-123.0-147.0-3.0-3.0-3.0-2.0-4.0-3.0-2.0-20.0-21.0-15.0-35.0-64.0-39.0-21.0-16.0-8.0-4.0-3.0-23.0-29.0-3.0-3.0-34.0-34.0
Percentage of Revenues-5.3-4.6-3.6-3.2-3.3-3.2-3.3-2.9-3.3-4.0-5.6-6.4-0.1-0.1-0.1-0.1-0.2-0.2-0.1-1.0-1.2-0.9-1.7-3.6-2.1-1.2-0.7-0.4-0.2-0.2-1.4-1.8-0.2-0.2-1.8-1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.3-4.6-3.7-3.2-3.3-3.2-3.3-2.9-3.4-4.1-5.6-6.4-0.1-0.1-0.1-0.1-0.2-0.2-0.1-1.0-1.2-0.9-1.7-3.6-2.1-1.2-0.7-0.4-0.2-0.2-1.4-1.8-0.2-0.2-1.8-1.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService

us-gaap:IntersegmentElimination, us-gaap:Product


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-85.0-90.0-50.0-35.0-30.0-29.0-40.0-29.0-43.0-58.0-97.0-121.0-83.0-85.0-98.0-80.00.00.01.00.0-1.00.00.00.00.00.0-20.0-27.00.00.0-30.0-32.0
Percentage of Revenues-3.7-3.4-2.4-1.8-1.7-1.5-1.9-1.5-2.1-2.8-4.4-5.3-4.0-4.1-4.4-4.20.00.00.00.0-0.10.00.00.00.00.0-1.2-1.70.00.0-1.6-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-3.7-3.4-2.4-1.8-1.7-1.5-1.9-1.5-2.1-2.9-4.4-5.3-4.0-4.1-4.4-4.20.00.00.00.0-0.10.00.00.00.00.0-1.2-1.70.00.0-1.6-1.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Product0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, us-gaap:Service


Revenuesus-gaap:
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-35.0-31.0-26.0-26.0-28.0-32.0-30.0-29.0-25.0-25.0-26.0-26.0-25.0-25.0-20.0-21.0
Percentage of Revenues-1.5-1.2-1.2-1.3-1.6-1.7-1.4-1.5-1.2-1.2-1.2-1.1-1.2-1.2-0.9-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.5-1.2-1.3-1.4-1.6-1.7-1.4-1.5-1.2-1.2-1.2-1.1-1.2-1.2-0.9-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Service0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:IntersegmentElimination, us-gaap:Product, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-23.0-7.00.00.00.00.00.00.00.00.00.00.0-16.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues-1.0-0.30.00.00.00.00.00.00.00.00.00.0-0.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.0-0.30.00.00.00.00.00.00.00.00.00.0-0.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Product us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, us-gaap:Product, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value-16.0-28.0-16.0-10.0-9.0-6.0-8.0-8.0-8.0-11.0-14.0-10.0
Percentage of Revenues-0.7-1.1-0.8-0.5-0.5-0.3-0.4-0.4-0.4-0.5-0.6-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.7-1.1-0.8-0.5-0.5-0.3-0.4-0.4-0.4-0.5-0.6-0.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Product wmb:NortheastGAndP0.00.00.00.00.00.00.00.0-100.0-100.0-100.0-100.0

us-gaap:IntersegmentElimination, us-gaap:Product, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-20.0-27.0-17.0-12.0-7.0-11.0-14.0-10.0-17.0-30.0
Percentage of Revenues-0.9-1.0-0.8-0.6-0.4-0.6-0.7-0.5-0.8-1.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.9-1.0-0.8-0.6-0.4-0.6-0.7-0.5-0.8-1.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Product wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, us-gaap:Product, wmb:West


Revenuesus-gaap:
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
Value-26.0-28.0-17.0-13.0-14.0-12.0-18.0-11.0-18.0-17.0-20.0-26.0
Percentage of Revenues-1.1-1.1-0.8-0.7-0.8-0.6-0.9-0.6-0.9-0.8-0.9-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-1.1-1.1-0.8-0.7-0.8-0.6-0.9-0.6-0.9-0.8-0.9-1.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Product wmb:West0.00.00.00.00.00.00.00.0-100.0-100.0-100.0-100.0

us-gaap:IntersegmentElimination, us-gaap:Service, us-gaap:CorporateAndOther


Revenuesus-gaap:
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
Value-3.0-3.0-3.0-3.0-4.0-3.0-4.0-3.0-3.0-3.0-3.0-3.0
Percentage of Revenues-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.1-0.1-0.1-0.2-0.2-0.2-0.2-0.2-0.1-0.1-0.1-0.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Service us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.0-100.0-100.0-100.0-100.0

us-gaap:IntersegmentElimination, us-gaap:Service, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value-9.0-11.0-10.0-13.0-12.0-14.0-13.0-13.0-11.0-10.0-11.0-11.0
Percentage of Revenues-0.4-0.4-0.5-0.7-0.7-0.7-0.6-0.7-0.5-0.5-0.5-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.4-0.4-0.5-0.7-0.7-0.7-0.6-0.7-0.5-0.5-0.5-0.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Service wmb:NortheastGAndP0.00.00.00.00.00.00.00.0-100.0-100.0-100.0-100.0

us-gaap:IntersegmentElimination, us-gaap:Service, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-12.0-12.0-13.0-10.0-12.0-15.0-14.0-13.0-11.0-12.0
Percentage of Revenues-0.5-0.5-0.6-0.5-0.7-0.8-0.7-0.7-0.5-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.5-0.5-0.6-0.5-0.7-0.8-0.7-0.7-0.5-0.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Service wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:IntersegmentElimination, us-gaap:Service, wmb:West


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value-11.0-5.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues-0.5-0.20.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.5-0.20.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination us-gaap:Service wmb:West0.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:Product, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value44560.00.00.00.00.00.00.00.00.00.01.09.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues1.92.10.00.00.00.00.00.00.00.00.00.00.00.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.92.10.00.00.00.00.00.00.00.00.00.00.00.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Product us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:Product, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value243215121.029363037474569759811061
Percentage of Revenues1.11.20.70.60.11.51.71.51.82.32.03.03.64.74.93.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.11.20.70.60.11.51.71.51.82.32.13.03.64.74.93.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Product wmb:NortheastGAndP0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:Product, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value67675746365262766882
Percentage of Revenues2.92.62.72.42.02.72.93.83.34.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.02.52.82.42.02.73.03.83.44.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Product wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:Product, wmb:West


Revenuesus-gaap:
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
Value7221046509391303359495389434479626732560530637485
Percentage of Revenues31.640.024.320.217.018.823.519.521.323.328.431.826.825.428.625.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax31.839.824.620.417.218.923.619.621.523.528.732.127.025.628.625.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Product wmb:West0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:Service, us-gaap:CorporateAndOther


Revenuesus-gaap:
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
Value8.07.09.08.09.08.08.07.08.07.08.010.08.08.06.09.0
Percentage of Revenues0.40.30.40.40.50.40.40.40.40.30.40.40.40.40.30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.30.40.40.50.40.40.40.40.30.40.40.40.40.30.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Service us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:Service, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value373358374379354358379353330276269247232228224214
Percentage of Revenues16.313.717.919.619.918.718.017.716.213.412.210.711.110.910.111.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.413.618.119.820.018.918.017.816.313.612.310.811.211.010.111.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Service wmb:NortheastGAndP0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, us-gaap:Service, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value823834826807795829838842808823
Percentage of Revenues36.031.939.541.744.643.339.842.139.640.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax36.331.739.942.145.043.739.942.440.040.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Service wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, us-gaap:Service, wmb:West


Revenuesus-gaap:
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
Value291284342311316311429433368359486533535531657544
Percentage of Revenues12.710.916.316.117.716.320.421.718.017.522.123.125.625.429.528.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.810.816.516.217.916.420.421.818.217.622.323.425.825.629.528.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:Service wmb:West0.00.00.00.00.00.00.00.077.075.9100.0100.0100.0100.0100.0100.0

us-gaap:OperatingSegments, wmb:NonRegulatedServiceCommodityConsideration, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value2.03.02.02.01.02.03.01.03.05.06.06.0
Percentage of Revenues0.10.10.10.10.10.10.10.10.10.20.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.10.10.10.10.10.10.10.10.10.20.30.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:NonRegulatedServiceCommodityConsideration wmb:NortheastGAndP0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wmb:NonRegulatedServiceCommodityConsideration, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value10.0117.06.03.05.08.07.01313
Percentage of Revenues0.40.40.30.30.20.30.40.40.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.40.30.30.20.30.40.40.60.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:NonRegulatedServiceCommodityConsideration wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wmb:NonRegulatedServiceCommodityConsideration, wmb:West


Revenuesus-gaap:
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
Value393527322121343040466497
Percentage of Revenues1.71.31.31.71.21.11.61.52.02.22.94.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.31.31.71.21.11.61.52.02.32.94.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:NonRegulatedServiceCommodityConsideration wmb:West0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Revenuesus-gaap:
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
Value52639.08.09.08.08.07.08.07.08.010.08.08.08.08.09.08.09.010.011184370472665696659157.07.07.07.07.0
Percentage of Revenues2.32.40.40.40.50.40.40.40.40.30.40.40.40.40.40.40.50.40.40.50.61.12.13.92.61.53.03.33.93.40.90.40.40.40.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.40.40.40.50.40.40.40.40.30.40.40.40.40.40.40.50.40.40.50.61.12.13.92.61.53.03.33.93.40.90.40.40.40.40.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value399393391393356389418384370328320322311330334275
Percentage of Revenues17.515.018.720.320.020.319.819.218.116.014.514.014.915.815.014.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.614.918.920.520.220.519.919.318.316.114.714.115.015.915.014.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:NortheastGAndP0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value900912890859834886908925889918
Percentage of Revenues39.434.942.544.446.846.343.146.343.644.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax39.634.743.044.847.246.743.246.644.045.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:OperatingSegments, wmb:West


Revenuesus-gaap:
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
Value10521365878734640691958852952998117613621173114312941029
Percentage of Revenues46.152.342.038.035.936.145.542.646.648.653.459.156.154.758.154.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.351.942.438.336.236.445.642.947.149.153.959.756.555.158.154.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:OperatingSegments wmb:West0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Revenues us-gaap:ProductOrService

us-gaap:Product


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value7721111531414310411553466496550680811657636769581534431519560598519796942853930884887104611041159107711791342
Percentage of Revenues33.842.525.421.417.421.526.223.324.326.830.935.231.430.534.530.730.826.025.931.132.530.237.245.550.853.253.354.759.261.062.061.563.966.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax34.042.325.621.617.621.726.323.524.527.031.235.631.730.734.530.730.826.025.931.132.530.237.245.550.853.253.354.759.261.062.061.563.966.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product99.597.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service


Revenuesus-gaap:
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
Value1460145215251479144614741509149514891440144013711340135114591310
Percentage of Revenues64.055.672.976.581.277.171.674.873.070.165.359.564.164.765.569.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax64.355.273.677.181.977.771.975.373.770.866.060.164.665.265.569.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service97.797.899.098.599.399.197.598.5100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NonRegulatedServiceCommodityConsideration


Revenuesus-gaap:
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
Value514936402528453856648412194101
Percentage of Revenues2.21.91.72.11.41.52.11.92.73.13.85.34.54.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.21.91.72.11.41.52.11.92.83.13.95.34.54.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NonRegulatedServiceCommodityConsideration100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:ProductOrService, us-gaap:StatementBusinessSegments

us-gaap:Product, us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value21490.00.00.00.00.00.00.00.00.00.01.09.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Revenues0.91.90.00.00.00.00.00.00.00.00.00.00.00.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.91.90.00.00.00.00.00.00.00.00.00.00.00.50.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.00.00.00.00.0100.0100.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Product, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value8.04.0-1.02.0-8.023282229363159668910556
Percentage of Revenues0.40.2-0.00.1-0.41.21.31.11.41.81.42.63.24.34.73.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.40.2-0.00.1-0.51.21.31.11.41.81.42.63.24.34.73.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:NortheastGAndP0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Product, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value47404034294148665152
Percentage of Revenues2.11.51.91.81.62.12.33.32.52.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.11.51.91.81.62.22.33.32.52.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:Product, wmb:West


Revenuesus-gaap:
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
Value6961018492378289347477378416462606706541512607459
Percentage of Revenues30.539.023.519.616.218.122.618.920.422.527.530.725.924.527.224.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax30.738.723.819.716.418.322.719.020.622.727.831.026.124.727.224.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Product wmb:West0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, us-gaap:CorporateAndOther


Revenuesus-gaap:
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
Value5.04.06.05.05.05.04.04.05.04.05.07.05.05.04.06.0
Percentage of Revenues0.20.20.30.30.30.30.20.20.20.20.20.30.20.20.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.20.30.30.30.30.20.20.20.20.20.30.20.20.20.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service us-gaap:CorporateAndOther0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:NortheastGAndP


Revenuesus-gaap:
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
Value364347364366342344366340319266258236222219216207
Percentage of Revenues15.913.317.418.919.218.017.417.015.613.011.710.210.610.59.710.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax16.013.217.619.119.418.117.417.115.813.111.810.410.710.69.710.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:NortheastGAndP0.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service, wmb:TransmissionAndGulfOfMexico


Revenuesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value811822813797783814824829797811
Percentage of Revenues35.531.538.941.244.042.639.141.539.039.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax35.731.339.341.644.342.939.241.839.439.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:TransmissionAndGulfOfMexico0.00.00.00.00.00.00.00.00.00.0

us-gaap:Service, wmb:West


Revenuesus-gaap:
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
Value280279342311316311429433368359486533535531657544
Percentage of Revenues12.310.716.316.117.716.320.421.718.017.522.123.125.625.429.528.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax12.310.616.516.217.916.420.421.818.217.622.323.425.825.629.528.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service wmb:West0.00.00.00.00.00.00.00.077.075.9100.0100.0100.0100.0100.0100.0

us-gaap:Revenues us-gaap:SubsegmentsConsolidationItems

us-gaap:CorporateAndOther


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value52638.09.08.07.08.07.010.0
Percentage of Revenues2.32.40.40.50.40.40.40.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.32.40.40.50.40.40.40.30.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:CorporateAndOther118.2112.50.00.00.00.00.00.01000.0

us-gaap:IntersegmentElimination


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-122.0-121.0-62.0-59.0-61.0-57.0-71.0-83.0-147.0
Percentage of Revenues-5.3-4.6-3.2-3.3-3.2-2.9-3.5-4.0-6.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-5.4-4.6-3.2-3.3-3.2-2.9-3.5-4.1-6.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:IntersegmentElimination102.5102.5106.9107.3105.2105.6104.4103.8102.1

wmb:NortheastMidstream


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value399393393356389384370328322
Percentage of Revenues17.515.020.320.020.319.218.116.014.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax17.614.920.520.220.519.318.316.114.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NortheastMidstream101.5101.6101.6101.4101.3101.3101.4101.5101.9

wmb:NorthwestPipeline


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value108113111110115111110114110
Percentage of Revenues4.74.35.76.26.05.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax4.84.35.86.26.15.65.45.64.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:NorthwestPipeline100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:Transco


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value631644626616627645591597501
Percentage of Revenues27.624.732.434.632.832.329.029.121.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax27.824.532.634.933.032.529.229.422.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:Transco100.0100.3100.3100.3100.0100.5100.3100.5100.6

wmb:TransmissionAndGulfOfMexicoMidstream


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value163155123109144168191207
Percentage of Revenues7.15.96.46.17.58.49.410.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax7.25.96.46.27.68.59.510.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:TransmissionAndGulfOfMexicoMidstream101.9101.3102.5100.9101.4101.2100.0102.0

wmb:WestMidstream


Revenuesus-gaap:
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value105213657346406917418428841252
Percentage of Revenues46.152.338.035.936.137.141.343.054.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.351.938.336.236.437.341.743.554.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax wmb:WestMidstream99.997.8100.0100.3100.4100.0101.0100.5100.2

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:SellingGeneralAndAdministrativeExpense


Selling
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
Value1141231121141271131481301521281331741301321561381531611671771582211941771741962041711361501271301231322779610596-76.0130134137142122123111
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax5.04.75.45.97.26.07.06.57.56.36.17.66.36.47.07.38.08.17.69.39.113.39.79.89.511.49.58.38.18.67.78.07.07.314.85.55.74.8447.14.85.05.35.85.35.44.3

Assets

us-gaap:Assets

us-gaap:Assets


Assets
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-31
Value455074526244165443204534344629460404628146509459704530247153463744705246352461204877047512468354728848124488074902050819511635045750563498073494928306271422645525657248162432721263202671779016502261462570525083249722528026006
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:AccountsReceivable


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value151128148150143170167
Percentage of Assets0.30.30.30.30.30.40.4
Percentage of Assets0.30.30.30.30.30.40.4
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:AccountsReceivable100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:CashAndCashEquivalents


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value81831076291100102
Percentage of Assets0.20.20.20.10.20.20.2
Percentage of Assets0.20.20.20.10.20.20.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:CashAndCashEquivalents100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherCurrentAssets


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value9.05.07.06.08.03.05.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherIntangibleAssets


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value2322234923762404242724542669
Percentage of Assets5.15.25.45.45.45.55.8
Percentage of Assets5.15.25.45.45.45.55.8
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherIntangibleAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherNoncurrentAssets


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value15151512121213
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets0.00.00.00.00.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherNoncurrentAssets100.0100.0100.0100.0100.0100.0100.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:PropertyPlantAndEquipment


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value5406546555145562562556855745
Percentage of Assets11.912.112.512.512.412.712.5
Percentage of Assets11.912.112.512.512.412.712.5
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:PropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:ConsolidationItems

us-gaap:IntersegmentElimination


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302012-12-31
Value-1556.0-1355.0-999.0-953.0-1279.0-657.0-572.0-530.0-381.0-388.0-367.0-607.0-114.0-64.0-140.0-85.0-136.0-82.0-353.0-396.0-467.0-502.0-535.0-621.0-672.0-584.0-591.0-539.0-543.0-458.0-713.0-722.0-485.0
Percentage of Assets-3.4-3.0-2.3-2.2-2.8-1.5-1.2-1.1-0.8-0.8-0.8-1.3-0.2-0.1-0.3-0.2-0.3-0.2-0.8-0.8-1.0-1.0-1.1-1.2-1.3-1.2-1.2-1.1-1.6-1.6-2.6-2.7-2.0
Percentage of Assets-3.4-3.0-2.3-2.2-2.8-1.5-1.2-1.1-0.8-0.8-0.8-1.3-0.2-0.1-0.3-0.2-0.3-0.2-0.8-0.8-1.0-1.0-1.1-1.2-1.3-1.2-1.2-1.1-1.6-1.6-2.6-2.7-2.0
Percentage of Assets us-gaap:IntersegmentElimination100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Assets us-gaap:StatementBusinessSegments

us-gaap:CorporateAndOther


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312012-09-302011-12-31
Value257022259277561797130911519281401782849748550541589570688656685737822852850999106411011220125172021459135918391831178213081275
Percentage of Assets5.64.92.11.74.02.92.52.03.01.71.91.61.21.11.31.21.41.41.51.61.71.71.72.02.12.22.42.520.65.25.07.07.17.36.27.7
Percentage of Assets5.64.92.11.74.02.92.52.03.01.71.91.61.21.11.31.21.41.41.51.61.71.71.72.02.12.22.42.520.65.25.07.07.17.36.27.7
Percentage of Assets us-gaap:CorporateAndOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:NortheastGAndP


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value14470144641456914526146091470215399154451550015301145261448214397
Percentage of Assets31.832.033.032.832.232.933.433.433.333.332.130.731.1
Percentage of Assets31.832.033.032.832.232.933.433.433.333.332.130.731.1
Percentage of Assets wmb:NortheastGAndP100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:TransmissionAndGulfOfMexico


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value19575193951911019246195691865618796
Percentage of Assets43.042.943.343.443.241.840.8
Percentage of Assets43.042.943.343.443.241.840.8
Percentage of Assets wmb:TransmissionAndGulfOfMexico100.0100.0100.0100.0100.0100.0100.0

wmb:West


Assetsus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value10448105331055810745106471061913487135501347313834139481616916143
Percentage of Assets23.023.323.924.223.523.829.329.329.030.130.834.334.8
Percentage of Assets23.023.323.924.223.523.829.329.329.030.130.834.334.8
Percentage of Assets wmb:West100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

us-gaap:Liabilities us-gaap:ConsolidatedEntities, us-gaap:BalanceSheetLocation

us-gaap:Liabilities

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:AccountsPayable


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value55494227274458
Percentage of Liabilities100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:AccountsPayable0.00.00.00.00.00.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:AccruedLiabilities


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value39343436495466
Percentage of Liabilities70.969.481.0133.3181.5122.7113.8
Percentage of Assets0.10.10.10.10.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:AccruedLiabilities0.00.00.00.00.00.00.0

us-gaap:VariableInterestEntityPrimaryBeneficiary, us-gaap:OtherNoncurrentLiabilities


Liabilitiesus-gaap:
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value286287289287288285283
Percentage of Liabilities520.0585.7688.11063.01066.7647.7487.9
Percentage of Assets0.60.60.70.60.60.60.6
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary us-gaap:OtherNoncurrentLiabilities0.00.00.00.00.00.00.0

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
Value4550745262441654432045343446294604046281465094597045302471534637447052463524612048770475124683547288481244880749020508195116350457505634980734949283062714226455256572481624327212632026717790165022614625705250832497225280
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
Value11512117021176912065122121235413363136211384814406146601561093459473965681098306844446434860483056916148738779288212877791297863461648644948469447954752309229611940179379097716753772888447
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 Assets25.325.926.627.226.927.729.029.429.831.332.433.120.220.120.817.617.017.89.910.310.011.712.514.515.516.317.418.322.516.317.918.718.319.319.514.514.610.910.930.230.030.029.233.4

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
Value26252497142914032338156515801434202812871464198415412399217922933969284514621627235712611527126414261622189018982119217816831782194618641924196116822119189428892830250525303793
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 Assets5.85.53.23.25.23.53.43.14.42.83.24.23.35.14.75.08.16.03.13.44.92.63.12.52.83.23.73.86.17.76.26.77.67.57.99.28.311.911.511.011.010.010.115.0

us-gaap:AssetsCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value630581
Percentage of AssetsCurrent44.136.8
Percentage of Assets1.41.3
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

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
Value12011126142701133400289247806431684227512928991172191863917077135164100125204341240302860106468173282470283999667911008899961166923795101516011644186714391699
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 Assets2.62.50.30.22.50.90.60.51.70.10.40.10.62.71.92.53.91.30.40.20.30.30.20.20.40.70.50.62.53.82.52.83.22.83.44.73.46.25.43.84.53.73.20.00.00.07.45.50.0

Receivables Net Current

us-gaap:ReceivablesNetCurrent

us-gaap:ReceivablesNetCurrent


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312014-12-312013-12-312012-12-31
Value9991058999101190793099687587992999288384474397678369386793885410411139674688
Percentage of ReceivablesNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.22.32.32.32.02.12.21.91.92.02.21.91.81.62.11.71.41.82.01.82.12.32.52.8

us-gaap:ReceivablesNetCurrent us-gaap:AccountsNotesLoansAndFinancingReceivableByReceivableType

wmb:AccountsReceivableRelatedToContractsWithCustomers


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value9281007892868749791890791817794858795742704958
Percentage of ReceivablesNetCurrent92.995.289.385.982.685.189.490.492.985.586.590.087.994.898.2
Percentage of Assets2.02.22.02.01.71.81.91.71.81.71.91.71.61.52.1
Percentage of Assets wmb:AccountsReceivableRelatedToContractsWithCustomers0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

wmb:OtherAccountsReceivable


Receivables
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value71511071431581391068462135134881023918
Percentage of ReceivablesNetCurrent7.14.810.714.117.414.910.69.67.114.513.510.012.15.21.8
Percentage of Assets0.20.10.20.30.30.30.20.20.10.30.30.20.20.10.0
Percentage of Assets wmb:OtherAccountsReceivable0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ReceivablesNetCurrent us-gaap:MajorCustomers, us-gaap:ConcentrationRiskByBenchmark, us-gaap:ConcentrationRiskByType

wmb:ChesapeakeEnergyCorporation, us-gaap:AccountsReceivable, us-gaap:CustomerConcentrationRisk


Receivables
Period End2020-09-302020-06-302019-12-31
Value889178
Percentage of ReceivablesNetCurrent8.710.07.8
Percentage of Assets0.20.20.2
Percentage of Assets wmb:ChesapeakeEnergyCorporation us-gaap:AccountsReceivable us-gaap:CustomerConcentrationRisk0.00.00.0

us-gaap:ReceivablesNetCurrent us-gaap:ProductOrService

wmb:AccountsReceivableRelatedToContractsWithCustomers


Receivables
Period End2020-12-312019-12-312018-12-31
Value892890858
Percentage of ReceivablesNetCurrent89.389.486.5
Percentage of Assets2.01.91.9
Percentage of Assets wmb:AccountsReceivableRelatedToContractsWithCustomers0.00.00.0

wmb:OtherReceivable


Receivables
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1071061344.0159.0676639
Percentage of ReceivablesNetCurrent10.710.613.50.41.60.95.99.85.7
Percentage of Assets0.20.20.30.00.00.00.10.20.2
Percentage of Assets wmb:OtherReceivable0.00.00.00.00.00.00.00.00.0

wmb:SaleOfNGLAndRelatedProductsAndServices


Receivables
Period End2020-12-312019-12-312018-12-31
Value638613626
Percentage of ReceivablesNetCurrent63.961.563.1
Percentage of Assets1.41.31.4
Percentage of Assets wmb:SaleOfNGLAndRelatedProductsAndServices0.00.00.0

wmb:TransportationOfNaturalGasAndRelatedProducts


Receivables
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value254277232212187202175193170
Percentage of ReceivablesNetCurrent25.427.823.421.719.919.415.428.624.7
Percentage of Assets0.60.60.50.50.40.40.30.70.7
Percentage of Assets wmb:TransportationOfNaturalGasAndRelatedProducts0.00.00.00.00.00.00.00.00.0

Inventory Net

us-gaap:InventoryNet

us-gaap:InventoryNet


Inventory
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
Value194144136157134105125129134129130153153160113144150148138120122142127156168200231284276222194230174190175161159186169287282264303222
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.40.30.30.40.30.20.30.30.30.30.30.30.30.30.20.30.30.30.30.30.30.30.30.30.30.40.50.60.80.80.70.90.70.80.70.80.81.01.01.11.11.11.20.9

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
Value2311691521651641301701832091861742422692041911942041682165381821742172002352062132241939310781834566142167152159186206167173238
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 Assets0.50.40.30.40.40.30.40.40.40.40.40.50.60.40.40.40.40.40.51.10.40.40.40.40.50.40.40.40.60.30.40.30.30.20.30.70.80.91.00.70.80.70.70.9

Assets Noncurrent

us-gaap:AssetsNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:AssetsNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Assets
Period End2020-12-312019-12-31
Value1342411966
Percentage of AssetsNoncurrent100.0100.0
Percentage of Assets30.426.0
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:PropertyPlantAndEquipmentGross


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value4354342970424894238442092417724151041647408684054138661399534086340467395133871238898383423891238461383513960639039387613807037198364353556827380264842582324934239372319722546216002083519601190823215931442308163043527625
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets95.794.996.295.692.893.690.290.087.988.285.384.788.186.085.283.979.880.783.181.379.781.179.676.374.473.772.171.478.393.695.194.393.393.592.7101.6102.8110.2115.6123.0122.3122.9121.9109.3

us-gaap:PropertyPlantAndEquipmentGross us-gaap:CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProject

wmb:NortheastSupplyEnhancementProject


Property
Period End2020-09-302020-06-30
Value215217
Percentage of PropertyPlantAndEquipmentGross0.50.5
Percentage of Assets0.50.5
Percentage of Assets wmb:NortheastSupplyEnhancementProject0.00.0

us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType, us-gaap:PublicUtilityRegulatedOrUnregulatedStatus

us-gaap:ConstructionInProgress, us-gaap:RegulatedOperation


Property
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
Value38258696516371603941985273337199240152
Percentage of PropertyPlantAndEquipmentGross0.91.42.54.14.12.42.71.11.51.00.80.6
Percentage of Assets0.91.32.13.53.41.91.91.01.41.21.00.6
Percentage of Assets us-gaap:ConstructionInProgress us-gaap:RegulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:ConstructionInProgress, us-gaap:UnregulatedOperation


Property
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
Value28935477856641213662648312319976488651227
Percentage of PropertyPlantAndEquipmentGross0.70.92.01.41.13.57.312.18.93.42.84.4
Percentage of Assets0.70.81.71.20.92.85.211.58.23.93.54.9
Percentage of Assets us-gaap:ConstructionInProgress us-gaap:UnregulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GasGatheringAndProcessingEquipment, us-gaap:UnregulatedOperation


Property
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
Value1781317593153241844020413207891874991857727643562245461
Percentage of PropertyPlantAndEquipmentGross41.942.439.646.752.553.351.535.634.333.720.519.8
Percentage of Assets40.338.233.839.843.642.437.133.831.839.024.921.6
Percentage of Assets us-gaap:GasGatheringAndProcessingEquipment us-gaap:UnregulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:GasTransmissionAndDistributionEquipment, us-gaap:RegulatedOperation


Property
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
Value18688180761731214460126921218910867106339963959390668814
Percentage of PropertyPlantAndEquipmentGross44.043.544.836.632.631.229.841.244.250.329.831.9
Percentage of Assets42.339.338.231.227.124.921.539.241.058.136.334.9
Percentage of Assets us-gaap:GasTransmissionAndDistributionEquipment us-gaap:RegulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherCapitalizedPropertyPlantAndEquipment, us-gaap:RegulatedOperation


Property
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
Value265923821926163415901584133612931419139113591301
Percentage of PropertyPlantAndEquipmentGross6.35.75.04.14.14.13.75.06.37.34.54.7
Percentage of Assets6.05.24.33.53.43.22.64.85.88.45.45.1
Percentage of Assets us-gaap:OtherCapitalizedPropertyPlantAndEquipment us-gaap:RegulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:OtherCapitalizedPropertyPlantAndEquipment, us-gaap:UnregulatedOperation


Property
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
Value265825192356277622022170185013161103816940816
Percentage of PropertyPlantAndEquipmentGross6.36.16.17.05.75.65.15.14.94.33.13.0
Percentage of Assets6.05.55.26.04.74.43.74.84.54.93.83.2
Percentage of Assets us-gaap:OtherCapitalizedPropertyPlantAndEquipment us-gaap:UnregulatedOperation0.00.00.00.00.00.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-312014-12-312013-12-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value142441389413560132771295512631123101203411737114601115711279119101162011302110031085610580104841019894608354761370796916677966376502111861084210475-10163.0-8981.0
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets31.330.730.730.028.628.326.726.025.224.924.623.925.724.724.423.922.322.322.421.619.316.528.029.132.533.437.339.442.842.241.8-40.7-35.5

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
Value2929929076289292910729137291412920029613291312908127504286742895328847282112770928042277622842828263282492982329579294762908928536280812739819442187111821017467165991599515467146841405612964125802097320600203412027218644
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 Assets64.464.265.565.764.365.363.464.062.663.360.760.862.461.360.960.157.558.460.759.858.761.160.358.056.956.655.555.055.666.167.166.064.764.563.669.169.472.976.280.280.181.181.273.8

Intangible Assets Net Including Goodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill

us-gaap:IntangibleAssetsNetIncludingGoodwill


Intangible
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302015-12-31
Value7277736274447531760976887959804181238096776783248406864487918873948195709663975210017
Percentage of IntangibleAssetsNetIncludingGoodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.016.316.917.016.817.217.317.417.517.617.117.718.118.419.019.219.420.120.620.620.4

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:OperatingLeaseRightOfUseAsset


Operating
Period End2020-12-312019-12-312019-09-302019-06-302019-03-31
Value182207213221223
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0
Percentage of Assets0.40.40.50.50.5

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
Value1182119812041103110410561066965966962746744664649619630603597581562554614561683633644619632642619599623657583596616610621637674674689645502
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 Assets2.62.62.72.52.42.42.32.12.12.11.61.61.41.41.31.41.21.31.21.21.21.31.11.31.21.31.21.31.82.22.22.42.62.32.42.93.03.53.92.62.62.72.62.0

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
Value6115384824647693595526026276206627398937769787737346806236196887397447267237288651017990109496010149699359207686956766911174988913918934
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 Assets1.31.21.11.01.70.81.21.31.31.31.51.61.91.62.11.71.51.41.31.31.41.51.51.41.41.41.72.02.83.93.53.83.83.83.83.63.43.84.24.53.83.63.73.7

Accrued Liabilities Current

us-gaap:AccruedLiabilitiesCurrent

us-gaap:AccruedLiabilitiesCurrent


Accrued
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value100585594496510431129127611841199974110211171063887116710791275132214481059903939107812259248019008956557047977006916246286095995296318019158721002948
Percentage of AccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.21.92.12.22.32.52.82.62.62.12.42.42.31.92.52.32.62.83.12.21.91.92.22.41.81.61.81.81.92.52.92.62.72.52.62.93.03.03.83.13.63.54.03.8

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
Value37593535231918612438211639683324338941691811276119582164264623543996204529492465275227892497385837682330256729312396254919832086237115601549137912981534167524392390245825742477
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 Assets8.37.85.34.25.44.78.67.27.39.14.05.94.24.65.75.18.24.36.35.25.75.75.17.67.44.65.15.96.99.07.37.99.26.36.46.56.48.610.29.39.39.810.39.8

us-gaap:LiabilitiesCurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value312341
Percentage of LiabilitiesCurrent13.58.6
Percentage of Assets0.70.7
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Operating Lease Liability Current

us-gaap:OperatingLeaseLiabilityCurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:AccountsPayableAndAccruedLiabilities


Operating
Period End2020-12-312019-12-31
Value2821
Percentage of OperatingLeaseLiabilityCurrent100.0100.0
Percentage of Assets0.10.0
Percentage of Assets us-gaap:AccountsPayableAndAccruedLiabilities0.00.0

Other Accrued Liabilities Current

us-gaap:OtherAccruedLiabilitiesCurrent

us-gaap:OtherAccruedLiabilitiesCurrent


Other
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
Value304346371221356279342341275271309303
Percentage of OtherAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.70.80.80.50.80.60.71.31.11.61.21.2

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent us-gaap:EquityMethodInvestmentNonconsolidatedInvestee

us-gaap:LiabilitiesNoncurrent

us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees


Liabilities
Period End2020-12-312019-12-31
Value38842532
Percentage of LiabilitiesNoncurrent100.0100.0
Percentage of Assets8.85.5
Percentage of Assets us-gaap:EquityMethodInvestmentNonconsolidatedInvesteeOrGroupOfInvestees0.00.0

Debt And Capital Lease Obligations

us-gaap:DebtAndCapitalLeaseObligations

us-gaap:DebtAndCapitalLeaseObligations


Debt
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value22344222882241420935234092398820892113541073687229108
Percentage of DebtAndCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets50.648.449.545.250.048.941.341.844.152.936.5

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
Value2109121092214512195122323218482014820719207112070322367214092131321379204342056721325218252262423932243942370123812218052128521690208881992215539120991135310359103591061010735951290338366836990248927857786008259
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 Assets46.346.648.649.549.249.043.844.844.545.049.445.446.045.444.144.643.745.948.350.650.748.648.642.941.643.041.340.044.542.741.839.240.442.844.144.744.647.050.734.534.734.234.432.7

Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent us-gaap:RetirementPlanType

us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent

us-gaap:PensionPlansDefinedBenefit


Pension
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value26275390210
Percentage of PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.10.20.4
Percentage of Assets us-gaap:PensionPlansDefinedBenefit0.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value2753277128142833286829053001323832331319133713496102643065196773687569659403936495929933100771087311243113691139511552405941014057399832773075267528992666178412901344132913421331572
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.06.16.46.46.36.56.57.07.02.93.02.913.213.714.114.714.114.720.119.819.920.420.621.422.022.522.523.211.614.514.915.112.812.411.013.613.210.07.85.15.25.45.32.3

Operating Lease Liability Noncurrent

us-gaap:OperatingLeaseLiabilityNoncurrent us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityNoncurrent

us-gaap:OtherNoncurrentLiabilities


Operating
Period End2020-12-312019-12-31
Value161188
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0
Percentage of Assets0.40.4
Percentage of Assets us-gaap:OtherNoncurrentLiabilities0.00.0

Lessee Operating Lease Liability Payments Due Year Two

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo


Lessee
Period End2020-12-31
Value28
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearTwo100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Three

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree


Lessee
Period End2020-12-31
Value23
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearThree100.0
Percentage of Assets0.1

Lessee Operating Lease Liability Payments Due Year Four

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour


Lessee
Period End2020-12-31
Value19
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFour100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive


Lessee
Period End2020-12-31
Value17
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueYearFive100.0
Percentage of Assets0.0

Lessee Operating Lease Liability Payments Due After Year Five

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive


Lessee
Period End2020-12-31
Value140
Percentage of LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive100.0
Percentage of Assets0.3

Operating Lease Liability

us-gaap:OperatingLeaseLiability us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiability

us-gaap:OtherLiabilities


Operating
Period End2020-12-31
Value189
Percentage of OperatingLeaseLiability100.0
Percentage of Assets0.4
Percentage of Assets us-gaap:OtherLiabilities0.0

Lessee Operating Lease Liability Payments Due

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue

us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue


Lessee
Period End2020-12-31
Value261
Percentage of LesseeOperatingLeaseLiabilityPaymentsDue100.0
Percentage of Assets0.6

Lessee Operating Lease Liability Undiscounted Excess Amount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount

us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount


Lessee
Period End2020-12-31
Value72
Percentage of LesseeOperatingLeaseLiabilityUndiscountedExcessAmount100.0
Percentage of Assets0.2

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
Value11512117021176912065122121235413363136211384814406146601561093459473965681098306844446434860483056916148738779288212877791297863461648644948469447954752309229611940179379097716753772888447
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 Assets25.325.926.627.226.927.729.029.429.831.332.433.120.220.120.817.617.017.89.910.310.011.712.514.515.516.317.418.322.516.317.918.718.319.319.514.514.610.910.930.230.030.029.233.4

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
Value142651447314583148981508015259163641685917081157251599716959154471590316175148821518115409140461422414422156241622518260191711958120172206811192287178921894679717870742759915627372430839253904588798619817690268962901990547805
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 Assets31.332.033.033.633.334.235.536.436.734.235.336.033.333.834.932.331.132.430.030.130.032.033.135.937.538.839.941.534.130.832.933.831.131.730.528.227.820.918.735.435.235.434.50.00.00.035.734.80.0

us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-110.0-100.0-96.0-160.0-176.0-205.0-199.0-266.0-265.0-267.0-270.0-291.0-293.0-294.0-238.0-331.0-331.0-334.0-339.0-331.0-369.0-378.0-442.0-425.0-384.0-395.0-341.0-222.0-194.0-223.0-164.0-338.0-394.0-374.0-362.0-330.0-357.0-367.0-389.0-82.0-168.0-80.0-121.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-0.8-0.7-0.7-1.1-1.2-1.3-1.2-1.6-1.6-1.7-1.7-1.7-1.9-1.8-1.5-2.2-2.2-2.2-2.4-2.3-2.6-2.4-2.7-2.3-2.0-2.0-1.7-1.1-1.6-2.6-1.8-3.8-4.9-4.8-4.9-5.5-6.3-9.9-12.6-1.0-1.9-0.9-1.6
Percentage of Assets-0.2-0.2-0.2-0.4-0.4-0.5-0.4-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.7-0.7-0.7-0.7-0.7-0.8-0.8-0.9-0.8-0.8-0.8-0.7-0.4-0.6-0.8-0.6-1.3-1.5-1.5-1.5-1.6-1.8-2.1-2.4-0.3-0.7-0.30.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value244012438424371243592434324330243232431024296247032469324680185521853318508184921847118445148871493014849148331480714833148121477914925149251489011545115991158211274112581113494499305826984178269813580746748
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest171.1168.5167.1163.5161.4159.4148.6144.2142.2157.1154.4145.5120.1116.5114.4124.3121.7119.7106.0105.0103.094.991.381.277.375.574.072.2124.9132.4130.0129.5141.4143.0149.9157.7165.4222.0273.095.990.289.286.5
Percentage of Assets53.653.955.255.053.754.552.852.552.253.754.552.340.039.439.940.137.938.831.831.630.930.430.229.229.029.329.530.042.640.842.743.843.945.445.844.445.946.551.033.132.231.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value124912491248124812481248124712471246124612451245862862861861861861785785785785784784784783782782782720718718718717716662661630626620618613608
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest8.88.68.68.48.38.27.67.47.37.97.87.35.65.45.35.85.75.65.65.55.45.04.84.34.14.03.93.86.68.38.08.09.09.19.611.011.716.920.37.26.96.87.8
Percentage of Assets2.72.82.82.82.82.82.72.72.72.72.72.61.91.81.91.91.81.81.71.71.61.61.61.51.51.61.51.62.22.52.62.72.82.92.93.13.33.53.82.52.42.40.0
Percentage of Assets us-gaap:CommonStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:NoncontrollingInterest


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
Value27532771281428332868290530013238323313191337134961026430651967736875696594039364959299331007710873112431136911395115524059410140573998327730752675289926661784129013441329134213311151104710435726141430
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest19.319.119.319.019.019.018.319.218.98.48.48.039.540.440.345.545.345.266.965.866.563.662.159.558.658.156.555.934.047.045.544.741.139.136.048.447.447.941.814.514.715.115.414.111.611.66.36.818.3
Percentage of Assets6.06.16.46.46.36.56.57.07.02.93.02.913.213.714.114.714.114.720.119.819.920.420.621.422.022.522.523.211.614.514.915.112.812.411.013.613.210.07.85.15.25.45.30.00.00.02.32.40.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


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
Value1151211702117691206512212123541336313621138481440614660156109345947396568109830684444643486048305691614873877928821287779129786346164864494846944795475230922961194017937909771675377288702579797919844784406375
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest80.780.980.781.081.081.081.780.881.191.691.692.060.559.659.754.554.754.833.134.233.536.437.940.541.441.943.544.166.053.054.555.358.960.964.051.652.652.158.285.585.384.984.685.988.488.493.793.281.7
Percentage of Assets25.325.926.627.226.927.729.029.429.831.332.433.120.220.120.817.617.017.89.910.310.011.712.514.515.516.317.418.322.516.317.918.718.319.319.514.514.610.910.930.230.030.029.20.00.00.033.432.50.0
Percentage of Assets us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:PreferredStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-31
Value3535353535353535353535350.00.00.00.00.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest0.20.20.20.20.20.20.20.20.20.20.20.20.00.00.00.00.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.10.10.10.00.00.00.00.0
Percentage of Assets us-gaap:PreferredStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-13022.0-12825.0-12748.0-12376.0-12197.0-12013.0-11002.0-10664.0-10423.0-10270.0-10002.0-9018.0-8735.0-8587.0-8434.0-9872.0-9654.0-9487.0-9649.0-9483.0-9394.0-8508.0-7960.0-6764.0-6243.0-5914.0-5548.0-5315.0-6574.0-6385.0-6248.0-5973.0-5863.0-5765.0-5695.0-5648.0-5607.0-5551.0-5820.0-478.0903874-293.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-91.3-88.6-87.4-83.1-80.9-78.7-67.2-63.3-61.0-65.3-62.5-53.2-56.5-54.0-52.1-66.3-63.6-61.6-68.7-66.7-65.1-54.5-49.1-37.0-32.6-30.2-27.5-25.7-55.1-73.2-70.0-66.8-73.6-73.3-76.7-94.3-99.6-149.1-188.8-5.510.09.7-3.8
Percentage of Assets-28.6-28.3-28.9-27.9-26.9-26.9-23.9-23.0-22.4-22.3-22.1-19.1-18.8-18.3-18.2-21.4-19.8-20.0-20.6-20.1-19.5-17.4-16.2-13.3-12.2-11.7-11.0-10.7-18.8-22.6-23.0-22.6-22.9-23.2-23.4-26.6-27.7-31.2-35.3-1.93.63.40.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-1041.0-567.0
Percentage of StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-7.3-7.2-7.1-7.0-6.9-6.8-6.4-6.2-6.1-6.6-6.5-6.1-6.7-6.5-6.4-7.0-6.9-6.8-7.4-7.3-7.2-6.7-6.4-5.7-5.4-5.3-5.2-5.0-8.7-11.9-11.7-11.6-13.1-13.2-14.0-17.4-18.5-28.0-33.8-12.1-11.5-11.5-7.3
Percentage of Assets-2.3-2.3-2.4-2.3-2.3-2.3-2.3-2.2-2.2-2.3-2.3-2.2-2.2-2.2-2.2-2.3-2.1-2.2-2.2-2.2-2.2-2.1-2.1-2.0-2.0-2.1-2.1-2.1-3.0-3.7-3.8-3.9-4.1-4.2-4.3-4.9-5.1-5.9-6.3-4.2-4.1-4.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

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
Value124912491248124812481248124712471246124612451245862862861861861861785785785785784784784783782782782720718718718717716662661630626623623622620618
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 Assets2.72.82.82.82.82.82.72.72.72.72.72.61.91.81.91.91.81.81.71.71.61.61.61.51.51.61.51.62.22.52.62.72.82.92.93.13.33.53.82.42.42.52.52.4

Additional Paid In Capital Common Stock

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AdditionalPaidInCapitalCommonStock


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
Value2440124384243712435924343243302432324310242962470324693246801855218533185081849218471184451488714930148491483314807148331481214779149251492514890115451159911582112741125811134944993058269841783688351830282698135
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets53.653.955.255.053.754.552.852.552.253.754.552.340.039.439.940.137.938.831.831.630.930.430.229.229.029.329.530.042.640.842.743.843.945.445.844.445.946.551.032.032.533.133.132.2

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
Value-13022.0-12825.0-12748.0-12376.0-12197.0-12013.0-11002.0-10664.0-10423.0-10270.0-10002.0-9018.0-8735.0-8587.0-8434.0-9872.0-9654.0-9487.0-9649.0-9483.0-9394.0-8508.0-7960.0-6764.0-6243.0-5914.0-5548.0-5315.0-6574.0-6385.0-6248.0-5973.0-5863.0-5765.0-5695.0-5648.0-5607.0-5551.0-5820.033-122.0-230.0-478.0903
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 Assets-28.6-28.3-28.9-27.9-26.9-26.9-23.9-23.0-22.4-22.3-22.1-19.1-18.8-18.3-18.2-21.4-19.8-20.0-20.6-20.1-19.5-17.4-16.2-13.3-12.2-11.7-11.0-10.7-18.8-22.6-23.0-22.6-22.9-23.2-23.4-26.6-27.7-31.2-35.30.1-0.5-0.9-1.93.6

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-312008-12-312007-12-31
Value-110.0-100.0-96.0-160.0-176.0-205.0-199.0-266.0-265.0-267.0-270.0-291.0-293.0-294.0-238.0-331.0-331.0-334.0-339.0-331.0-369.0-378.0-442.0-425.0-384.0-395.0-341.0-222.0-194.0-223.0-164.0-338.0-394.0-374.0-362.0-330.0-357.0-367.0-389.0-74.0-95.0-116.0-82.0-168.0-80.0-121.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.2-0.2-0.2-0.4-0.4-0.5-0.4-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.7-0.7-0.7-0.7-0.7-0.8-0.8-0.9-0.8-0.8-0.8-0.7-0.4-0.6-0.8-0.6-1.3-1.5-1.5-1.5-1.6-1.8-2.1-2.4-0.3-0.4-0.5-0.3-0.7-0.30.0

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap:StatementEquityComponents

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-86.0-89.0-92.0-157.0-173.0-202.0-196.0-263.0-262.0-264.0-267.0-278.0-282.0-291.0-235.0-326.0-330.0-334.0-337.0-329.0-333.0-334.0-338.0-352.0-359.0-365.0-371.0-276.0-281.0-286.0-291.0-475.0-511.0-521.0-530.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax78.289.095.898.198.398.598.598.998.998.998.995.596.299.098.798.599.7100.099.499.490.288.476.582.893.592.4108.8124.3144.8128.3177.4140.5129.7139.3146.4
Percentage of Assets-0.2-0.2-0.2-0.4-0.4-0.5-0.4-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.7-0.6-0.8-1.0-1.1-1.8-2.0-2.1-2.2
Percentage of Assets us-gaap:AccumulatedDefinedBenefitPlansAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-23.0-10.0-3.0-2.0-2.0-2.0-2.0-2.0-2.0-2.0-2.0-12.0-10.0-2.0-2.0-3.01.02.00.00.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax20.910.03.11.21.11.01.00.80.80.70.74.13.40.70.80.9-0.3-0.6-0.0-0.00.30.30.20.20.30.30.30.50.50.40.60.30.30.30.3
Percentage of Assets-0.1-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.00.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0
Percentage of Assets us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value-110.0-100.0-96.0-160.0-176.0-205.0-199.0-266.0-265.0-267.0-270.0-291.0-293.0-294.0-238.0-331.0-331.0-334.0-339.0-331.0-369.0-378.0-442.0-425.0-384.0-341.0
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-0.2-0.2-0.2-0.4-0.4-0.5-0.4-0.6-0.6-0.6-0.6-0.6-0.6-0.6-0.5-0.7-0.7-0.7-0.7-0.7-0.8-0.8-0.9-0.8-0.8-0.7
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AccumulatedTranslationAdjustment


Accumulated
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-1.0-2.0-2.0-2.0-2.0-2.0-35.0-43.0-103.0-72.0-24.0-29.031558864128138118148169
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax0.91.01.00.60.60.50.50.40.40.40.40.30.30.30.40.60.60.60.60.69.511.423.316.96.27.3-9.1-24.8-45.4-28.7-78.0-40.8-29.9-39.6-46.7
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.1-0.1-0.2-0.1-0.0-0.10.10.10.30.20.50.50.50.60.7
Percentage of Assets us-gaap:AccumulatedTranslationAdjustment0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Minority Interest

us-gaap:MinorityInterest

us-gaap:MinorityInterest


Minority
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
Value2753277128142833286829053001323832331319133713496102643065196773687569659403936495929933100771087311243113691139511552405941014057399832773075267528992666178412901344132913421331572
Percentage of MinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.06.16.46.46.36.56.57.07.02.93.02.913.213.714.114.714.114.720.119.819.920.420.621.422.022.522.523.211.614.514.915.112.812.411.013.613.210.07.85.15.25.45.32.3

Minority Interest Decrease From Distributions To Noncontrolling Interest Holders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders


Minority
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
Value415438495444381827413919621518720420421725822523724223623824223422833121314914714512011910510394289-99.05554-53.0-52.0-244.033-34.0-32.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Minority
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
Value415438495444381827413919621518720420421725822523724223623824223422833121314914714512011910510394289-99.05554-53.0-52.0-244.033-34.0-32.0
Percentage of MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0
Percentage of Assets us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1057915111445211437879918581069775962746891694719569662606158261868577959260381466910113453134465155396684955464314244341087668873811710644680617
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.634.853.823.664.741.547.243.252.938.144.132.742.933.532.330.134.430.572.032.439.546.929.533.544.339.047.216.718.725.531.033.237.827.329.224.623.021.5-6394.124.732.731.529.128.029.723.8

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-443.0-257.0-476.0-412.0-341.0-329.0-483.0-920.0-166.0-1258.0258-1314.0-871.0-798.0-423.01566-388.0-122.0-16.0346-400.0-346.0-592.0-705.0-1246.0-756.0-1147.0-1074.0-6944.0-992.0-1149.0-1177.0-918.0-808.0-3241.0-790.0-2399.0-491.0-1015.0-789.0-620.0-579.0-1824.0-1539.0-498.0-435.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-19.5-9.8-23.0-21.5-19.3-17.3-23.0-46.3-8.2-61.811.8-57.6-42.0-38.5-19.082.8-20.2-6.1-0.718.2-23.0-20.8-29.5-39.2-67.8-44.1-53.6-51.9-413.8-56.7-69.2-72.5-52.0-44.6-173.4-45.1-130.0-24.35970.6-29.2-23.2-22.5-74.9-66.9-21.8-16.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-539.0326-566.0-1103.0-69.0-347.0-466.0-497.0-140.0358-1094.0335-1037.0497-569.0-2881.01005-15.0-1473.0-1036.0-300.0-369.0-25.02329518874171642792958354637217625386761554268-179.0-49.0-10.0-104.0894309-225.0-405.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-23.712.4-27.3-57.5-3.9-18.3-22.2-25.0-6.917.6-50.214.7-50.024.0-25.5-152.452.2-0.8-67.0-54.4-17.3-22.2-1.21.316.011.03.58.3383.053.135.133.621.19.7135.838.684.213.31052.9-1.8-0.4-4.036.713.4-9.8-15.6

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

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect


Cash
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value7598472-1063.073311142
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax3.337.43.5-55.441.55.82.0

Deferred Income Tax Expense Benefit

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:DeferredIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value11814456111118-177.01118610775-131.02096973-2111.08.063284868-144.02.0-378.0-67.080282201013106-93.012335163103913.03187-146.0-9.097-6.038-240.02128
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization

us-gaap:DepreciationDepletionAndAmortization


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
Value463438436426430429439435424416435425434431428433433442437435446445451432428427379369214214209207198210211196181168412418403381406374366361
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Accounts Payable

us-gaap:IncreaseDecreaseInAccountsPayable

us-gaap:IncreaseDecreaseInAccountsPayable


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
Value563870-313.0391-155.03022-59.0-39.0-17.0-6.0127-197.07118-3.03241-28.035-23.047-89.027-75.0-68.094-18.0-16.012-25.0-28.06.0559.0-106.0-68.0855663465817-76.0-13.0
Percentage of IncreaseDecreaseInAccountsPayable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories

us-gaap:IncreaseDecreaseInInventories


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value508.0-22.02428-19.02.0-3.0-3.0-1.0-23.06.0-7.040-31.0-7.00.030184.0-13.016-29.0-12.0-32.0-32.0-53.08.05427-36.055-15.01314-9.0-27.017-45.05.018-38.032-8.0
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1057915111445211437879918581069775962746891694719569662606158261868577959260381466910113453134465155396684955464314244341087668873811710644680617
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax46.634.853.823.664.741.547.243.252.938.144.132.742.933.532.330.134.430.572.032.439.546.929.533.544.339.047.216.718.725.531.033.237.827.329.224.623.021.5-6394.124.732.731.529.128.029.723.8

Net Income Loss

us-gaap:NetIncomeLoss

us-gaap:NetIncomeLoss


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423-444.0272227321174-1263.0185-193.0
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 RevenueFromContractWithCustomerExcludingAssessedTax13.416.25.616.117.2-27.25.911.115.39.6-26.25.76.57.375.71.74.218.8-0.73.2-23.3-3.9-35.6-2.26.24.19.081.16.18.0-0.88.78.08.98.08.87.221.02611.810.18.512.57.1-54.98.1-7.4

Profit Loss

us-gaap:ProfitLoss

us-gaap:ProfitLoss


Profit
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
Value322435130323315-570.0-66.0242324214-546.0200269270162212519356937131-505.0-13.0-1337.0-173.018313308170812719649197192230202203165495-362.0342297384228-1226.0222-146.0
Percentage of ProfitLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.216.56.316.817.8-30.0-3.112.216.010.5-25.08.813.013.072.86.610.028.61.76.9-29.1-0.8-66.7-9.610.00.814.482.67.611.23.012.110.912.710.811.68.924.52129.412.711.114.99.4-53.39.7-5.6

us-gaap:ProfitLoss us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Profit
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
Value189.0141412-53.0-190.02114192571134118-65.0921121965270-100.052-622.0-133.069-57.011530245663565069534833728270706354373747
Percentage of ProfitLoss5.62.110.84.33.89.3287.98.74.38.9-4.635.549.843.7-4.073.658.034.4140.553.419.8-400.046.576.937.7-438.537.31.818.928.6128.628.426.030.026.223.620.014.5-22.720.523.616.423.7-3.016.7-32.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.80.30.70.70.7-2.8-9.01.10.70.91.13.16.55.7-2.94.95.89.92.43.7-5.83.1-31.0-7.43.8-3.35.41.41.43.23.83.52.83.82.82.71.83.6-482.42.62.62.42.21.61.61.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:NoncontrollingInterest0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:Parent


Profit
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
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423-444.0272227321174-1263.0185-193.0
Percentage of ProfitLoss94.497.989.295.796.290.7-187.991.395.791.1104.664.550.256.3104.026.442.065.6-40.546.680.2500.053.523.162.3538.562.798.281.171.4-28.671.674.070.073.876.480.085.5122.779.576.483.676.3103.083.3132.2
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.416.25.616.117.2-27.25.911.115.39.6-26.25.76.57.375.71.74.218.8-0.73.2-23.3-3.9-35.6-2.26.24.19.081.16.18.0-0.88.78.08.98.08.87.221.02611.810.18.512.57.1-54.98.1-7.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Parent0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings


Profit
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value304426116309303-517.0124221310195-571.012913515216873381373-15.061-405.0-65.0-715.0-40.0114701931678103140-14.0141142161149155132423
Percentage of ProfitLoss94.497.989.295.796.290.7-187.991.395.791.1104.664.550.256.3104.026.442.065.6-40.546.680.2500.053.523.162.3538.562.798.281.171.4-28.671.674.070.073.876.480.085.5
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.416.25.616.117.2-27.25.911.115.39.6-26.25.76.57.375.71.74.218.8-0.73.2-23.3-3.9-35.6-2.26.24.19.081.16.18.0-0.88.78.08.98.08.87.221.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Share Based Compensation

us-gaap:ShareBasedCompensation

us-gaap:ShareBasedCompensation


Share
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value19201315159.01314161412131614171723211821132117192323171312119.08.0119.09.09.09.09.01611111411111214
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-443.0-257.0-476.0-412.0-341.0-329.0-483.0-920.0-166.0-1258.0258-1314.0-871.0-798.0-423.01566-388.0-122.0-16.0346-400.0-346.0-592.0-705.0-1246.0-756.0-1147.0-1074.0-6944.0-992.0-1149.0-1177.0-918.0-808.0-3241.0-790.0-2399.0-491.0-1015.0-789.0-620.0-579.0-1824.0-1539.0-498.0-435.0
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-19.5-9.8-23.0-21.5-19.3-17.3-23.0-46.3-8.2-61.811.8-57.6-42.0-38.5-19.082.8-20.2-6.1-0.718.2-23.0-20.8-29.5-39.2-67.8-44.1-53.6-51.9-413.8-56.7-69.2-72.5-52.0-44.6-173.4-45.1-130.0-24.35970.6-29.2-23.2-22.5-74.9-66.9-21.8-16.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-31
Value42526030132530730640478649742259776993395769964454551147450855651374277182283210881104104679310301012817713877
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Productive Assets

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:StatementBusinessSegments, wmb:AssetAcquisition

us-gaap:PaymentsToAcquireProductiveAssets

us-gaap:CorporateAndOther, wmb:A2021WamsutterFieldAcquisition


Payments
Period End2021-06-302021-02-28
Value8679
Percentage of PaymentsToAcquireProductiveAssets100.0100.0

us-gaap:PaymentsToAcquireProductiveAssets us-gaap:SubsequentEventType

us-gaap:SubsequentEvent


Payments
Period End2021-02-28
Value79
Percentage of PaymentsToAcquireProductiveAssets100.0

us-gaap:PaymentsToAcquireProductiveAssets wmb:AssetAcquisition

wmb:A2021WamsutterBasinAcquisition


Payments
Period End2021-02-28
Value79
Percentage of PaymentsToAcquireProductiveAssets100.0

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities


Net
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value-539.0326-566.0-1103.0-69.0-347.0-466.0-497.0-140.0358-1094.0335-1037.0497-569.0-2881.01005-15.0-1473.0-1036.0-300.0-369.0-25.02329518874171642792958354637217625386761554268-179.0-49.0-10.0-104.0894309-225.0-405.0
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-23.712.4-27.3-57.5-3.9-18.3-22.2-25.0-6.917.6-50.214.7-50.024.0-25.5-152.452.2-0.8-67.0-54.4-17.3-22.2-1.21.316.011.03.58.3383.053.135.133.621.19.7135.838.684.213.31052.9-1.8-0.4-4.036.713.4-9.8-15.6

Proceeds From Issuance Of Long Term Debt

us-gaap:ProceedsFromIssuanceOfLongTermDebt

us-gaap:ProceedsFromIssuanceOfLongTermDebt


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
Value1.08971.02.02194170231161270818115661312048320370217347082012051815268828871165465525511871199343914969940.0935770137716095000.02072675350759504300.03749
Percentage of ProceedsFromIssuanceOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0

Repayments Of Long Term Debt

us-gaap:RepaymentsOfLongTermDebt

us-gaap:RepaymentsOfLongTermDebt


Repayments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value6.05.05.0610170815185.0364.08643.014407011060450276571020002125166513101991953641127436489648640.00.00.00.011868951551133155251231599150753524381083407
Percentage of RepaymentsOfLongTermDebt100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments Of Dividends Common Stock

us-gaap:PaymentsOfDividendsCommonStock

us-gaap:PaymentsOfDividendsCommonStock


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
Value4984984854854864854604614614604124112822812482482482481501504814804804804424344264192912762602502412312041961881541481181187374737364
Percentage of PaymentsOfDividendsCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber

us-gaap:EmployeeStockOption, wmb:WilliamsCompaniesIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value6.06.87.36.66.25.75.86.7
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber100.0100.0100.0100.0100.0100.0100.0100.0

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

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice us-gaap:AwardType, us-gaap:PlanName

us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice

us-gaap:EmployeeStockOption, wmb:WilliamsCompaniesIncentivePlan


Share
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value33.1832.6431.5531.5331.3231.5125.8621.82
Percentage of ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

us-gaap:DeferredTaxLiabilities

us-gaap:DeferredTaxLiabilities


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
Value192317821524314742384176464535022724217441204323
Percentage of DeferredTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Net

us-gaap:DeferredTaxAssetsNet

us-gaap:DeferredTaxAssetsNet


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
Value20521632111843710911115841338528566588677
Percentage of DeferredTaxAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Unrecognized Tax Benefits

us-gaap:UnrecognizedTaxBenefits

us-gaap:UnrecognizedTaxBenefits


Unrecognized
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value51515150505589665838918979
Percentage of UnrecognizedTaxBenefits100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Assets Valuation Allowance

us-gaap:DeferredTaxAssetsValuationAllowance

us-gaap:DeferredTaxAssetsValuationAllowance


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
Value325319320224334190206181144145249289
Percentage of DeferredTaxAssetsValuationAllowance100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesIncurred us-gaap:StatementBusinessSegments, wmb:AssetAcquisition

us-gaap:AssetRetirementObligationLiabilitiesIncurred

us-gaap:CorporateAndOther, wmb:A2021WamsutterFieldAcquisition


Asset
Period End2021-06-302021-02-28
Value125207
Percentage of AssetRetirementObligationLiabilitiesIncurred100.0100.0

us-gaap:AssetRetirementObligationLiabilitiesIncurred wmb:AssetAcquisition

wmb:A2021WamsutterBasinAcquisition


Asset
Period End2021-02-28
Value207
Percentage of AssetRetirementObligationLiabilitiesIncurred100.0

us-gaap:CommonStockDividendsPerShareDeclared

us-gaap:CommonStockDividendsPerShareDeclared


Common
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value0.410.410.40.40.40.40.380.380.380.380.340.340.340.340.30.30.30.30.20.20.640.640.640.640.590.580.570.560.4250.40250.380.366250.35250.338750.3250.31250.30.258750.250.20.20.1250.1250.1250.1250.11
Percentage of CommonStockDividendsPerShareDeclared100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress


Contract
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
Value3845403646239.01420191317
Percentage of ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable

us-gaap:ContractWithCustomerAssetReclassifiedToReceivable


Contract
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
Value2532212-24.0-34.0-13.0-32.00.0-25.0-1.0-65.00.0
Percentage of ContractWithCustomerAssetReclassifiedToReceivable100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress

us-gaap:ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress


Contract
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
Value-72.0-13.0-256.0147428191293334558
Percentage of ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:ContractWithCustomerLiabilityRevenueRecognized


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value5254393-50.0-62.0-57.0628-77.0-100.0-99.0790-112.0-113.0
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CurrentFederalTaxExpenseBenefit

us-gaap:CurrentFederalTaxExpenseBenefit


Current
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
Value0.0-2.0-1.00.00.0-28.0-16.0-10.0-9.0-6.0-28.0-19.0-17.0-19.05.07.00.03.00.00.00.00.00.00.00.00.0-107.0-15.0-24.01373025-61.0-11.0-21.058332186483017576770-113.0
Percentage of CurrentFederalTaxExpenseBenefit0.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CurrentIncomeTaxExpenseBenefit

us-gaap:CurrentIncomeTaxExpenseBenefit


Current
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
Value1.0-3.0-1.00.0-1.0-27.0-20.0-9.0-9.0-6.0-28.0-19.0-17.0-18.011162.09.01.01.0-1.00.0-69.02.03.02.0-104.0-15.0-22.01441827-61.0-7.0-12.07440467664480.0729083-122.0
Percentage of CurrentIncomeTaxExpenseBenefit100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

us-gaap:CurrentStateAndLocalTaxExpenseBenefit

us-gaap:CurrentStateAndLocalTaxExpenseBenefit


Current
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value1.0-1.0-1.01.0-5.00.00.00.00.00.00.01.06.09.02.06.01.01.00.00.0-8.00.01.00.00.0-2.0-1.05.04.00.01.02.0-1.010.04.04.07.03.02.01.03.08.05.0-14.0
Percentage of CurrentStateAndLocalTaxExpenseBenefit100.0100.0100.0100.0100.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.00.0100.00.0100.00.00.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredFederalIncomeTaxExpenseBenefit

us-gaap:DeferredFederalIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value85115429793-134.055739161-129.01886064-2067.0-11.05915438.0-52.0-5.0-355.0-60.0732519891195-96.01152113082976.03087-122.0-17.086-8.0121-220.01523
Percentage of DeferredFederalIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit

us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value3329141425-43.056131614-2.0219.09.0-44.0194.0131.071-18.07.0-21.0-6.0-1.03.016986.0-1.0-1.09.01913-4.0-3.0-3.0-3.0-26.04.07.01.0-87.0-23.03.03.0
Percentage of DeferredStateAndLocalIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-3.0-4.0-5.0-5.0-7.0-4.0-4.0-3.0-4.0-4.0-6.0-6.0-5.0-6.0-7.0-6.0-7.0-7.0-7.0-8.0
Percentage of DefinedBenefitPlanAmortizationOfGainsLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanContributionsByEmployer us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanContributionsByEmployer

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.01.02.01.01.02.01.01.02.01.01.0
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302018-03-312017-12-31
Value2.01.02.01.00.0321.042432.02.0
Percentage of DefinedBenefitPlanContributionsByEmployer100.0100.0100.0100.00.01600.0100.04200.02150.0200.0200.0

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value3.02.03.03.02.03.02.03.03.02.03.02.03.03.02.03.03.03.03.03.0
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value1111131314131515161516161516202121202122
Percentage of DefinedBenefitPlanExpectedReturnOnPlanAssets366.7550.0433.3433.3700.0433.3750.0500.0533.3750.0533.3800.0500.0533.31000.0700.0700.0666.7700.0733.3

us-gaap:DefinedBenefitPlanInterestCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanInterestCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value2.01.02.02.01.02.02.02.02.02.02.01.02.02.02.02.02.02.02.02.0
Percentage of DefinedBenefitPlanInterestCost100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value7.07.08.09.09.010.01213131211121211151514151516
Percentage of DefinedBenefitPlanInterestCost350.0700.0400.0450.0900.0500.0600.0650.0650.0600.0550.01200.0600.0550.0750.0750.0700.0750.0750.0800.0

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value-1.00.00.0-1.00.00.00.00.00.0-1.00.0-1.0-1.0-3.0-3.0-3.0-3.0-4.0-3.0
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost100.00.00.0100.00.00.00.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value7.08.08.010.011151313121235151415851312151615
Percentage of DefinedBenefitPlanNetPeriodicBenefitCost-700.00.00.00.0-1100.00.00.00.00.00.0-3500.00.0-1400.0-1500.0-2833.3-433.3-400.0-500.0-400.0-500.0

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-30
Value-1.00.0-1.0-2.0-6.00.0-1.00.00.0-21.0-1.0-1.0-71.00.00.0-1.00.0
Percentage of DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1100.00.0100.0100.0100.00.0100.00.00.0100.0100.0100.0100.00.00.0100.00.0

us-gaap:DefinedBenefitPlanServiceCost us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanServiceCost

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312020-09-302019-12-312019-09-302018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-30
Value0.01.00.01.00.01.00.00.00.01.00.00.0
Percentage of DefinedBenefitPlanServiceCost0.0100.00.0100.00.0100.00.00.00.0100.00.00.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value7.08.08.08.07.08.01211111113121114121312131413
Percentage of DefinedBenefitPlanServiceCost0.00.00.0800.00.00.00.01100.00.00.00.01200.00.00.00.00.01200.00.00.00.0

us-gaap:DividendsCommonStockCash

us-gaap:DividendsCommonStockCash


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
Value498498485485486485460461461460412411282281248248248248150150481480480480442434426419291276260250241231204196496-154.0148118118-73.0-494.07373-64.0
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DividendsCommonStockCash us-gaap:StatementEquityComponents

us-gaap:Parent


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
Value498498485485486485460461461460412411282281248248248248150150481480480480442434426419291276260250241231204196496-154.0148118118-73.0-494.07373-64.0
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RetainedEarnings


Dividends
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value498498485485486485460461461460412411282281248248248248150150481480480480442434426419291276260250241231204196496-154.0
Percentage of DividendsCommonStockCash100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentDividendsOrDistributions

us-gaap:EquityMethodInvestmentDividendsOrDistributions


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value169176187143154169199131155172186191176140182198214190
Percentage of EquityMethodInvestmentDividendsOrDistributions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment


Equity
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-30
Value1080.00.09380.0114-2.074320.00.00.00.00.00.00.03180.00.01128984610.00.00.00.0
Percentage of EquityMethodInvestmentOtherThanTemporaryImpairment100.00.00.0100.00.0100.0100.0100.0100.00.00.00.00.00.00.00.0100.00.00.0100.0100.0100.00.00.00.00.0

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment us-gaap:IncomeStatementLocation

wmb:ImpairmentOfEquityMethodInvestments


Equity
Period End2020-09-302020-06-302020-03-312019-09-30
Value0.00.0938114
Percentage of EquityMethodInvestmentOtherThanTemporaryImpairment0.00.0100.0100.0

us-gaap:EquityMethodInvestmentOtherThanTemporaryImpairment us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

wmb:RockyMountainMidstreamHoldingsLLC, us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, wmb:ImpairmentOfEquityMethodInvestments, wmb:West


Equity
Period End2020-12-312020-03-31
Value108243
Percentage of EquityMethodInvestmentOtherThanTemporaryImpairment100.025.9

us-gaap:ExtinguishmentOfDebtAmount dei:LegalEntity, us-gaap:DebtInstrument

us-gaap:ExtinguishmentOfDebtAmount

wmb:WilliamsCompaniesInc, wmb:A4.125PercentSeniorUnsecuredNotesDue2020


Extinguishment
Period End2020-08-17
Value600
Percentage of ExtinguishmentOfDebtAmount100.0

us-gaap:GoodwillImpairmentLoss

us-gaap:GoodwillImpairmentLoss


Goodwill
Period End2020-12-312020-09-302020-06-302020-03-312019-06-302019-03-312015-12-31
Value0.00.00.01870.00.01098
Percentage of GoodwillImpairmentLoss0.00.00.0100.00.00.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments

us-gaap:IncomeLossFromEquityMethodInvestments


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
Value1351319210610822115938780117105928287115125107951041019799929351896637-48.041373818233027312545454046383940
Percentage of IncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncomeLossFromEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wmb:RockyMountainMidstreamHoldingsLLC


Income
Period End2020-12-312020-09-302020-06-302020-03-31
Value0.00.00.0-78.0
Percentage of IncomeLossFromEquityMethodInvestments0.00.00.0-354.5

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable

us-gaap:IncreaseDecreaseInAccountsAndNotesReceivable


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-9.059-16.0103-18.0-67.0125-10.0-52.0-97.011146117-238.020683-172.0-29.0901188.0-298.0335-24.0-50.0-300.0170123-1.0-16.050-95.0-62.072556.0-36.0-52.01712462-6.012823-113.0-2.0
Percentage of IncreaseDecreaseInAccountsAndNotesReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables us-gaap:StatementBusinessSegments, wmb:AssetAcquisition

us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables

us-gaap:CorporateAndOther, wmb:A2021WamsutterFieldAcquisition


Increase
Period End2021-06-30
Value48
Percentage of IncreaseDecreaseInAccountsAndOtherReceivables100.0

us-gaap:IncreaseDecreaseInAccruedLiabilities

us-gaap:IncreaseDecreaseInAccruedLiabilities


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
Value130-116.0-23.0-50.0-86.0-150.0776.0212-142.085-55.0159-166.06916-44.0-133.0382151118-145.042-9.099-106.0-77.0-186.0-7.067844967-25.0-14.05557-98.0118-97.095-65.06563123-280.0
Percentage of IncreaseDecreaseInAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAssetRetirementObligations us-gaap:MajorCustomers

us-gaap:IncreaseDecreaseInAssetRetirementObligations

wmb:ChesapeakeEnergyCorporation


Increase
Period End2020-11-30
Value31
Percentage of IncreaseDecreaseInAssetRetirementObligations100.0

us-gaap:IncreaseDecreaseInContractWithCustomerLiability us-gaap:MajorCustomers

us-gaap:IncreaseDecreaseInContractWithCustomerLiability

wmb:ChesapeakeEnergyCorporation


Increase
Period End2020-11-30
Value67
Percentage of IncreaseDecreaseInContractWithCustomerLiability100.0

us-gaap:IncreaseDecreaseInOtherCurrentAssets

us-gaap:IncreaseDecreaseInOtherCurrentAssets


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value506.0-26.02.033-20.0-31.0-6.010.06.0-61.0-19.0594.010.0-6.035-18.0-7.0-10.037-16.0-10.0-39.054-9.0-5.01259-22.0-14.0-19.019-11.0-1.011-4.0-35.014-8.037-28.0-38.0
Percentage of IncreaseDecreaseInOtherCurrentAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements us-gaap:AwardType

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:EmployeeStockOption


Incremental
Period End2021-06-302020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value18000.04000.000105000.0228000.0258000.0530000.0420000.0593000.0700000.0650000.0623000.0536000.00001750000.01715000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0100.0100.0

us-gaap:RestrictedStock


Incremental
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-31
Value2208000.02565000.01423000.0980000.001790000.01792000.01845000.02387000.01819000.02095000.01889000.01499000.01305000.0568000.00001755000.02217000.0
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements12266.70.035575.00.00.01704.8786.0715.1450.4433.1353.3269.9230.6209.5106.00.00.00.0100.3129.3

us-gaap:InterestCostsCapitalizedAdjustment

us-gaap:InterestCostsCapitalizedAdjustment


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value3.02.04.06.05.05.05.07.010.010.010.016139.09.08.09.07.08.07.08.01519171622315229292627242426111210.08.07.0
Percentage of InterestCostsCapitalizedAdjustment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsIncurred

us-gaap:InterestCostsIncurred


Interest
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-30
Value301296294298299301303303306306304286288282274275280287301304306306287280278273265262192169157151151152147140140141132152155156152158
Percentage of InterestCostsIncurred100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating

us-gaap:InvestmentIncomeNonoperating


Investment
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value2.02.02.02.01.03.0-25.0-107.01261.01452.0684.04.04.02.0272-1.02818180.0189.00.00.01118141910.039132.03.03.069
Percentage of InvestmentIncomeNonoperating100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InvestmentIncomeNonoperating us-gaap:IncomeStatementLocation

us-gaap:OtherIncome


Investment
Period End2020-12-312020-09-302020-06-302019-12-312019-09-302019-06-302018-12-312018-09-302018-06-30
Value2.02.01.02.07.02.04.02.06.0
Percentage of InvestmentIncomeNonoperating100.0100.0100.0-8.0-6.51.62.8100.08.8

us-gaap:OtherAssetImpairmentCharges us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:OtherAssetImpairmentCharges

us-gaap:FairValueInputsLevel2, us-gaap:FairValueMeasurementsNonrecurring, wmb:ImpairmentOfCertainAssets, wmb:NortheastGAndP


Other
Period End2020-12-31
Value12
Percentage of OtherAssetImpairmentCharges100.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302015-06-302014-12-312014-09-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value611123-14.064-5.00.00.0-10.00.04.0440.00.0-12.00.0-3.08.00.00.0-100.00.0177120.0-26.0-1.0-3.0-148.0-4.00.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.00.00.0100.00.0100.0100.00.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax

us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302015-12-312015-09-302014-12-312014-09-302013-12-312013-09-302013-06-302012-12-312012-09-302012-06-302011-12-312011-09-302011-06-30
Value204.07.0-4.021-1.00.00.0-4.00.01.0150.00.0-6.00.0-2.05.00.0-60.00.01047.00.0-17.0-1.01.0-87.0-2.00.0
Percentage of OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax100.0100.0100.0100.0100.0100.00.00.0100.00.0100.0100.00.00.0100.00.0100.0100.00.0100.00.0100.0100.00.0100.0100.0100.0100.0100.00.0

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value611123-14.064-10.00.0440.00.00.0-12.00.0-3.00.08.00.00.00.0-101.00.00.00.0176
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax100.0100.0100.0100.0100.0100.00.0100.00.00.00.0100.00.0100.00.0100.00.00.00.0100.00.00.00.0100.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-17.0-9.00.00.00.012-5.0-3.0-6.01.02.01.01.00.00.00.03.00.00.00.00.00.00.00.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.00.0-0.00.0-120.00.0-6.80.00.00.0-8.30.0-0.00.00.00.00.00.0-0.00.00.00.00.0

us-gaap:AccumulatedOtherComprehensiveIncome


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value-17.0-9.0591123-14.0642.0-5.042-6.01.02.0-11.0-42.05.060-23.0-45.0
Percentage of OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax0.00.096.7100.0100.0100.0100.0-20.00.095.50.00.00.091.70.0-166.70.0-287.50.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax


Other
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-30
Value-17000000.0-9000000.00012000000.0-5000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax100.0100.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax


Other
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-30
Value-7000000.0-2000000.0005000000.0-3000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax100.0100.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax


Other
Period End2021-06-302021-03-312019-12-312019-09-302018-12-312018-09-30
Value-4000000.0-2000000.0002000000.0-7000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax100.0100.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Other
Period End2021-06-302021-03-31
Value-6000000.0-2000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax100.0100.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax


Other
Period End2021-06-302019-12-312019-09-302018-12-312018-09-30
Value-2000000.0002000000.0-2000000.0
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax100.00.00.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:StatementEquityComponents

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome, us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Other
Period End2021-06-302021-03-312020-12-31
Value-4.0-4.0-5.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-3000000.0-3000000.0-4000000.0-5000000.0-6000000.0-8000000.0-3000000.0-4000000.0-2000000.0-3000000.0-21000000.0-4000000.0-5000000.0-5000000.0-48000000.0-4000000.0-5000000.0-4000000.0-5000000.0-5000000.0-5000000.0-5000000.0-7000000.0-7000000.0-7000000.0-7000000.0-8000000.0-6000000.0-6000000.0-6000000.0-9000000.0-9000000.0-10000000.0-10000000.0-10000000.0-10000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax

us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value-1000000.0-1000000.0-1000000.0-1000000.0-3000000.0-2000000.0-1000000.00-2000000.0-1000000.0-6000000.0-3000000.0-1000000.0-1000000.0-30000000.0-2000000.0-2000000.0-3000000.0-3000000.0-3000000.0-3000000.0-3000000.0-5000000.0-5000000.0-4000000.0-4000000.0-4000000.0-4000000.0-4000000.0-3000000.0-5000000.0-7000000.0-5000000.0-6000000.0-5000000.0-6000000.0
Percentage of OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:OtherOperatingActivitiesCashFlowStatement


Other
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-31
Value6.0-16.0-17.032-43.023-15.0-118.0-22.0-21.0109-86.0-169.0178.0-90.0-158.0-101.0351-112.0-49.082-165.0-46.0-54.0183081.0-30.0592.02.096-38.0-58.0121217-32.031-31.033-39.0
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingIncomeExpenseNet

us-gaap:OtherOperatingIncomeExpenseNet


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
Value-12.01.06.0-15.0-6.0-7.02211-9.0-44.0-43.06.0-1.0-29.0-46.0-24.0-6.0-5.0-12.0-92.0-23.0-23.0-187.0-5.0-40.0-17.092-3.0-27.0-17.0-58.029-4.08.07.0-14.0-9.0-8.01.00.0-3.06.0-2.04.012
Percentage of OtherOperatingIncomeExpenseNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0

us-gaap:OtherSignificantNoncashTransactionValueOfConsiderationReceived1

us-gaap:OtherSignificantNoncashTransactionValueOfConsiderationReceived1


Other
Period End2021-06-302021-03-312020-06-302020-03-31
Value2.03.02.03.0
Percentage of OtherSignificantNoncashTransactionValueOfConsiderationReceived1100.0100.0100.0100.0

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
Value2.01.04.0-3.0-10.04.04.04.08.016123-116.0219.0253-55.0-59.0-122.0-63.0-74.0-56.0-97.0-467.0136-82.0-159.0-78.0-92.0-115.0-29.08.03.06.02.0-5.0-37.0-54.0-12.0-8.0-32.0-38.01119-71.0-21.0-6.0
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsOfDebtIssuanceCosts

us-gaap:PaymentsOfDebtIssuanceCosts


Payments
Period End2021-06-302021-03-312020-12-312020-09-302019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312011-12-312011-09-302010-12-312010-09-30
Value0.06.00.03.00.00.00.00.00.08.00.0183.01.0130.01.00.00.08.02.04.02.0270.03.02611265.05.00.0
Percentage of PaymentsOfDebtIssuanceCosts0.0100.00.0100.00.00.00.00.00.0100.00.0100.0100.0100.0100.00.0100.00.00.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0

us-gaap:PaymentsOfDividendsMinorityInterest

us-gaap:PaymentsOfDividendsMinorityInterest


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
Value41543849544438182741391961911651861892052422252372422362382422342283312131491471451201191051039491615554535246333432
Percentage of PaymentsOfDividendsMinorityInterest100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireBusinessesGross us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:PaymentsToAcquireBusinessesGross

wmb:Sequent, us-gaap:SubsequentEvent


Payments
Period End2021-07-01
Value134
Percentage of PaymentsToAcquireBusinessesGross100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments

us-gaap:PaymentsToAcquireEquityMethodInvestments


Payments
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value301417584363092119143993297127021292427524510.059636646400831379918228105162959323699813648
Percentage of PaymentsToAcquireEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsToAcquireEquityMethodInvestments us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wmb:BlueRacerMidstreamLLC


Payments
Period End2020-11-18
Value157
Percentage of PaymentsToAcquireEquityMethodInvestments0.0

us-gaap:ProceedsFromContributionInAidOfConstruction

us-gaap:ProceedsFromContributionInAidOfConstruction


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value171910.08.05.014277.08.010.016561491901735963131
Percentage of ProceedsFromContributionInAidOfConstruction100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromIssuanceOfCommonStock

us-gaap:ProceedsFromIssuanceOfCommonStock


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-02-012017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-232014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-04-302012-03-312011-12-312011-09-302011-06-302011-03-31
Value0.03.00.03.00.06.00.04.00.06.00.04.01.010.01.05.03.0210021221.02.00.06.00.06.01110.02.06.033783394144.05.02.07.016157.090288726155.03.026
Percentage of ProceedsFromIssuanceOfCommonStock0.0100.00.0100.00.0100.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromMinorityShareholders

us-gaap:ProceedsFromMinorityShareholders


Proceeds
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value4.02.02.01.02.02.04.00.0284.02.02.08.03.02.05.06.04.02.05.06.01626283126801385963140552702.09.02.0
Percentage of ProceedsFromMinorityShareholders100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value1.0-13.0-1.0-2.00.0-10.0-2.0-2.00.0-9.00.0-3.0-3.0-40.0-5.0-58.0-1.0-28.01.0-1.0-1.01.0-43.010.0-1.033334.0-24.04.0-4.0-6.0-1.01325-5.05.030-11.052-20.021-19.043-9.0-12.0
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.00.0100.0100.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromRepaymentsOfCommercialPaper

us-gaap:ProceedsFromRepaymentsOfCommercialPaper


Proceeds
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value400.00.00.00.0-1018.01014-823.08210.00.00.00.00.0-93.090-195.061-365.0-1033.0-215.01741-799.0533265-1.0-225.0-146.0-340.07100.00.00.0
Percentage of ProceedsFromRepaymentsOfCommercialPaper100.00.00.00.00.0100.0100.0100.0100.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment

us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment


Proceeds
Period End2021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value-1000000.0-6000000.0-14000000.0-13000000.0-3000000.0-8000000.0-17000000.0-11000000.0-4000000.0
Percentage of ProceedsFromSaleOfPropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAdditions

us-gaap:PropertyPlantAndEquipmentAdditions


Property
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-31
Value43026324833132725431673055941853961893093483666659156944444849552571375781673810141113949840968108087373297178562837110393000-604.0-482.06832970-488.0-410.0
Percentage of PropertyPlantAndEquipmentAdditions100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PropertyPlantAndEquipmentAdditions us-gaap:StatementBusinessSegments, wmb:AssetAcquisition

us-gaap:CorporateAndOther, wmb:A2021WamsutterFieldAcquisition


Property
Period End2021-06-302021-02-28
Value257290
Percentage of PropertyPlantAndEquipmentAdditions59.80.0

us-gaap:PropertyPlantAndEquipmentAdditions wmb:AssetAcquisition

wmb:A2021WamsutterBasinAcquisition


Property
Period End2021-02-28
Value290
Percentage of PropertyPlantAndEquipmentAdditions0.0

us-gaap:PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease us-gaap:MajorCustomers

us-gaap:PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease

wmb:ChesapeakeEnergyCorporation


Property
Period End2020-11-30
Value98
Percentage of PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease100.0

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax us-gaap:StatementEquityComponents

us-gaap:ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax

us-gaap:AccumulatedDefinedBenefitPlansAdjustment


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-3.0-3.0-4.0-5.0-6.0-8.0-3.0-4.0-2.0-3.0-21.0-4.0-5.0-5.0-47.0-4.0-4.0-3.0-4.0-4.0-4.0-4.0-6.0-7.0-6.0-6.0-6.0-5.0-5.0-5.0-8.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedges


Reclassification
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-31
Value-4.0-2.00.00.00.00.00.00.02.0-6.0-1.00.0-4.0-2.02.00.01.00.00.00.00.03.00.00.00.00.00.00.00.0
Percentage of ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax133.366.7-0.0-0.0-0.0-0.0-0.0-0.0-9.5150.020.0-0.08.550.0-50.0-0.0-25.0-0.0-0.0-0.0-0.0-42.9-0.0-0.0-0.0-0.0-0.0-0.0-0.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-7000000.0-5000000.0-5000000.0-5000000.0-6000000.0-8000000.0-4000000.0-2000000.0-3000000.0-10000000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-7000000.0-5000000.0-5000000.0-6000000.0-8000000.0-4000000.0-2000000.0-3000000.0-10000000.0
Percentage of ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReclassificationFromAociCurrentPeriodTax us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome

us-gaap:ReclassificationFromAociCurrentPeriodTax

us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncome


Reclassification
Period End2021-06-302021-03-312020-12-31
Value-3000000.0-1000000.0-1000000.0
Percentage of ReclassificationFromAociCurrentPeriodTax100.0100.0100.0

us-gaap:RevenueNotFromContractWithCustomer

us-gaap:RevenueNotFromContractWithCustomer


Revenue
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-30
Value13-17.0211515157.01420202323
Percentage of RevenueNotFromContractWithCustomer100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RevenueNotFromContractWithCustomer us-gaap:SubsegmentsConsolidationItems

us-gaap:CorporateAndOther


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value8.07.08.09.08.07.08.07.09.0
Percentage of RevenueNotFromContractWithCustomer61.5-41.253.360.053.350.040.035.039.1

us-gaap:IntersegmentElimination


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-3.0-3.0-4.0-4.0-3.0-3.0-3.0-3.0-3.0
Percentage of RevenueNotFromContractWithCustomer-23.117.6-26.7-26.7-20.0-21.4-15.0-15.0-13.0

wmb:NortheastMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value6.06.06.05.05.05.05.05.06.0
Percentage of RevenueNotFromContractWithCustomer46.2-35.340.033.333.335.725.025.026.1

wmb:Transco


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value0.02.02.02.00.03.02.03.03.0
Percentage of RevenueNotFromContractWithCustomer0.0-11.813.313.30.021.410.015.013.0

wmb:TransmissionAndGulfOfMexicoMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-31
Value3.02.03.01.02.02.00.04.0
Percentage of RevenueNotFromContractWithCustomer23.1-11.820.06.713.314.30.020.0

wmb:WestMidstream


Revenue
Period End2021-06-302021-03-312020-09-302020-06-302020-03-312019-09-302019-06-302019-03-312018-09-30
Value-1.0-31.00.02.03.00.08.04.03.0
Percentage of RevenueNotFromContractWithCustomer-7.7182.40.013.320.00.040.020.013.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value20111416138.013171711121614191419231816189.014-38.018321813193323161415112017
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueShareBasedCompensation us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value2010.01416137.013161710.0121614181419231716189.013-38.01831171318332116141410.01917
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.090.9100.0100.0100.087.5100.094.1100.090.9100.0100.0100.094.7100.0100.0100.094.4100.0100.0100.092.9100.0100.096.994.4100.094.7100.091.3100.0100.093.390.995.0100.0

us-gaap:CommonStock


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value0.01.00.00.00.01.00.01.00.01.00.00.00.01.00.00.00.01.00.00.00.01.00.00.01.01.00.01.00.02.00.00.01.01.01.00.0
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation0.09.10.00.00.012.50.05.90.09.10.00.00.05.30.00.00.05.60.00.00.07.1-0.00.03.15.60.05.30.08.70.00.06.79.15.00.0

us-gaap:Parent


Stock
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-30
Value20111416138.013171711121614191419231816189.014-38.018321813193323161415112017
Percentage of StockIssuedDuringPeriodValueShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityOther

us-gaap:StockholdersEquityOther


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302010-06-30
Value5.02.02.04.0-2.010.02.02.01.03.00.02.02.01.02.03.0-1.0-2.00.04.0-2.0-8.0-6.0-5.0-5.0-6.01.01.0-2.04.0-1.05.0-2.0-1.02.03.03.0-1.01.00.0-3.01.0
Percentage of StockholdersEquityOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0

us-gaap:StockholdersEquityOther us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.0-3.00.00.00.01.0-1.00.0-1.01.01.00.0-2.0-3.0-1.0-1.00.0-2.0-2.0-8.0-14.0-1.01.00.02.00.0-2.03.0-1.00.00.00.0-2.01.03.0-2.0
Percentage of StockholdersEquityOther60.0-150.0-0.00.00.050.0-100.00.00.050.050.00.0-100.0-100.0100.050.00.0-50.0100.0100.0233.320.0-20.0-0.0200.00.0100.075.0100.00.0-0.0-0.0-100.033.3100.0200.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-30
Value-1.0-3.01.0-3.01.00.00.00.00.00.01.00.00.03.03.00.00.0-1.06.00.0-3.07.0-5.0-7.0-8.0-1.00.00.00.0-1.04.0-1.0-1.0-4.01.01.01.00.0-1.00.0
Percentage of StockholdersEquityOther-20.0-150.025.0150.010.00.00.00.00.00.050.00.00.0150.0100.0-0.0-0.00.0150.0-0.037.5-116.7100.0140.0133.3-100.00.0-0.00.0100.080.050.0100.0-200.033.333.3-100.00.00.0-0.0

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302010-09-302010-06-30
Value6.02.05.03.01.09.02.02.01.03.00.01.02.01.0-1.00.0-1.0-2.01.0-2.0-2.0-5.0-13.00.02.02.02.01.0-2.04.00.01.0-1.00.06.02.02.0-2.01.01.0-3.01.0
Percentage of StockholdersEquityOther120.0100.0250.075.0-50.090.0100.0100.0100.0100.00.050.0100.0100.0-50.00.0100.0100.00.0-50.0100.062.5216.7-0.0-40.0-33.3200.0100.0100.0100.0-0.020.050.0-0.0300.066.766.7200.0100.00.0100.0100.0

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-31
Value3.05.03.03.01.09.02.01.02.03.01.01.01.01.01.03.00.0-1.01.00.00.03.01.01.01.02.00.00.01.01.01.0-1.01.00.08.00.00.00.0
Percentage of StockholdersEquityOther60.0250.0150.075.0-50.090.0100.050.0200.0100.00.050.050.0100.050.0100.0-0.050.00.00.0-0.0-37.5-16.7-20.0-20.0-33.30.00.0-50.025.0-100.0-20.0-50.0-0.0400.00.00.0-0.0

us-gaap:StockholdersEquityPeriodIncreaseDecrease

us-gaap:StockholdersEquityPeriodIncreaseDecrease


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-208.0-110.0-315.0-182.0-179.0-1105.0-495.0-222.01356-272.0-962.01512-456.0-272.01293-299.0-228.01363-178.0-198.0-1202.0-601.0-2035.0-911.0-410.0-591.0-509.0
Percentage of StockholdersEquityPeriodIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockholdersEquityPeriodIncreaseDecrease us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-10.0-4.0641629-6.067-1.02.03.0212.01.0-56.0930.03.05.0-8.0389.064-17.0-41.011-54.0-119.0
Percentage of StockholdersEquityPeriodIncreaseDecrease4.83.6-20.3-8.8-16.20.5-13.50.50.1-1.1-2.20.1-0.220.67.2-0.0-1.30.44.5-19.2-0.7-10.60.84.5-2.79.123.4

us-gaap:AdditionalPaidInCapital


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value17131216137.01314-407.010.013612819251621263558-43.0811626-26.02133-146.00.0
Percentage of StockholdersEquityPeriodIncreaseDecrease-8.2-11.8-3.8-8.8-7.3-0.6-2.6-6.3-30.0-3.7-1.4405.3-4.2-9.21.2-7.0-11.4261.024.2-40.9-1.3-4.31.3-2.3-8.024.7-0.0

us-gaap:CommonStock


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value0.01.00.00.00.01.00.01.00.01.00.03830.01.00.00.00.0760.00.00.01.00.00.01.01.00.0
Percentage of StockholdersEquityPeriodIncreaseDecrease-0.0-0.9-0.0-0.0-0.0-0.1-0.0-0.50.0-0.4-0.025.3-0.0-0.40.0-0.0-0.05.6-0.0-0.0-0.0-0.2-0.0-0.0-0.2-0.2-0.0

us-gaap:NoncontrollingInterest


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-18.0-43.0-19.0-35.0-37.0-96.0-237.05.01914-18.0-12.0-4753.0-328.0-89.0-254.0-102.0-90.0-2438.039-228.0-341.0-144.0-796.0-370.0-126.0-26.0-157.0
Percentage of StockholdersEquityPeriodIncreaseDecrease8.739.16.019.220.78.747.9-2.3141.26.61.2-314.471.932.7-19.634.139.5-178.9-21.9115.228.424.039.140.630.74.430.8

us-gaap:Parent


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-190.0-67.0-296.0-147.0-142.0-1009.0-258.0-227.0-558.0-254.0-950.06265-128.0-183.01547-197.0-138.03801-217.030-861.0-457.0-1239.0-541.0-284.0-565.0-352.0
Percentage of StockholdersEquityPeriodIncreaseDecrease91.360.994.080.879.391.352.1102.3-41.293.498.8414.428.167.3119.665.960.5278.9121.9-15.271.676.060.959.469.395.669.2

us-gaap:RetainedEarnings


Stockholders
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value-197.0-77.0-372.0-179.0-184.0-1011.0-338.0-241.0-153.0-268.0-984.0-283.0-148.0-153.01438-218.0-167.0162-166.0-89.0-886.0-548.0-1196.0-521.0-329.0-366.0-233.0
Percentage of StockholdersEquityPeriodIncreaseDecrease94.770.0118.198.4102.891.568.3108.6-11.398.5102.3-18.732.556.2111.272.973.211.993.344.973.791.258.857.280.261.945.8

us-gaap:SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest dei:LegalEntity, us-gaap:Ownership, us-gaap:StatementBusinessSegments

us-gaap:SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest

wmb:WilliamsCompaniesInc, wmb:AppalachiaMidstreamServicesLLC, wmb:NortheastGAndP


Subsidiary
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-31
Value066.0065.3400.66
Percentage of SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest0.0100.00.0100.00.0100.0

us-gaap:TangibleAssetImpairmentCharges us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency, us-gaap:IncomeStatementLocation, us-gaap:StatementBusinessSegments

us-gaap:TangibleAssetImpairmentCharges

us-gaap:FairValueInputsLevel3, us-gaap:FairValueMeasurementsNonrecurring, wmb:ImpairmentOfCertainAssets, wmb:TransmissionAndGulfOfMexico


Tangible
Period End2020-12-312019-12-31
Value170354
Percentage of TangibleAssetImpairmentCharges100.0100.0

wmb:AssetRetirementObligationAccretionExpenseForNonregulatedOperations

wmb:AssetRetirementObligationAccretionExpenseForNonregulatedOperations


Asset
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
Value1110.08.010.07.010.08.08.08.09.07.08.010.08.010.07.09.07.07.09.08.07.07.06.09.06.0
Percentage of AssetRetirementObligationAccretionExpenseForNonregulatedOperations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ContractLiabilityNoncashInterestExpenseSignificantFinancingObligation

wmb:ContractLiabilityNoncashInterestExpenseSignificantFinancingObligation


Contract
Period End2020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value3.02.03.03.03.03.04.05.04.04.0
Percentage of ContractLiabilityNoncashInterestExpenseSignificantFinancingObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ContributionsFromNoncontrollingInterests

wmb:ContributionsFromNoncontrollingInterests


Contributions
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
Value4.02.02.01.02.02.04.00.0284.02.02.08.03.02.05.06.04.0
Percentage of ContributionsFromNoncontrollingInterests100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ContributionsFromNoncontrollingInterests us-gaap:StatementEquityComponents

us-gaap:NoncontrollingInterest


Contributions
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
Value4.02.02.01.02.02.04.00.0284.02.02.08.03.02.05.06.04.0
Percentage of ContributionsFromNoncontrollingInterests100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid

wmb:IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid


Increase
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value5.03.0-53.06.020-52.0-88.0-56.062-4.0-58.0-151.0-3.0-23.0137224658-30.0-60.0-61.012-29.0-14.0-6.0-94.0
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilitiesRelatedToCapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ModifiedEBITDAEarningsLoss

wmb:ModifiedEBITDAEarningsLoss


Modified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value130614101109124312461253895125311121187
Percentage of ModifiedEBITDAEarningsLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ModifiedEBITDAEarningsLoss us-gaap:ConsolidationItems, us-gaap:StatementBusinessSegments

us-gaap:OperatingSegments, us-gaap:CorporateAndOther


Modified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value2033-23.0-7.08.07.05.0-2.07.0-4.0
Percentage of ModifiedEBITDAEarningsLoss1.52.3-2.1-0.60.60.60.6-0.20.6-0.3

us-gaap:OperatingSegments, wmb:NortheastGAndP


Modified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value409402363387370369367345303299
Percentage of ModifiedEBITDAEarningsLoss31.328.532.731.129.729.441.027.527.225.2

us-gaap:OperatingSegments, wmb:TransmissionAndGulfOfMexico


Modified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value646660486616615662284665590636
Percentage of ModifiedEBITDAEarningsLoss49.546.843.849.649.452.831.753.153.153.6

us-gaap:OperatingSegments, wmb:West


Modified
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value231315283247253215519245212256
Percentage of ModifiedEBITDAEarningsLoss17.722.325.519.920.317.258.019.619.121.6

wmb:ProportionalModifiedEBITDAEquityMethodInvestments

wmb:ProportionalModifiedEBITDAEquityMethodInvestments


Proportional
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-31
Value230225176189192192200181175190
Percentage of ProportionalModifiedEBITDAEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

wmb:ReclassificationOfEmployeeBenefitCostCreditToRegulatoryAssetLiability us-gaap:RetirementPlanType

wmb:ReclassificationOfEmployeeBenefitCostCreditToRegulatoryAssetLiability

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Reclassification
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-30
Value01000000.01000000.0001000000.0001000000.001000000.0001000000.001000000.01000000.01000000.01000000.01000000.0
Percentage of ReclassificationOfEmployeeBenefitCostCreditToRegulatoryAssetLiability0.0100.0100.00.00.0100.00.00.0100.00.0100.00.00.0100.00.0100.0100.0100.0100.0100.0

dei:EntityCommonStockSharesOutstanding

dei:EntityCommonStockSharesOutstanding


Entity
Period End2021-07-292021-04-292021-02-192020-10-29
Value1214121412131213
Percentage of EntityCommonStockSharesOutstanding100.0100.0100.0100.0

srt:ProductiveGasWellsNumberOfWellsGross us-gaap:SubsequentEventType

srt:ProductiveGasWellsNumberOfWellsGross

us-gaap:SubsequentEvent


Productive
Period End2021-02-01
Value2000.0
Percentage of ProductiveGasWellsNumberOfWellsGross100.0

srt:ProductiveGasWellsNumberOfWellsGross wmb:AssetAcquisition

wmb:A2021WamsutterBasinAcquisition


Productive
Period End2021-02-01
Value2000.0
Percentage of ProductiveGasWellsNumberOfWellsGross100.0

us-gaap:AccountsPayableRelatedPartiesCurrent us-gaap:RelatedPartyTransaction

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:EquityMethodInvestee


Accounts
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value503618201912
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0

us-gaap:AccountsReceivableGrossCurrent

us-gaap:AccountsReceivableGrossCurrent


Accounts
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-31
Value10001059100010219179401002
Percentage of AccountsReceivableGrossCurrent100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies

us-gaap:AccrualForEnvironmentalLossContingencies


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-30
Value31333334303031333434353638393840394038373738404141434443454647454849464445464747
Percentage of AccrualForEnvironmentalLossContingencies100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AccrualForEnvironmentalLossContingencies us-gaap:LossContingenciesByNatureOfContingency

wmb:FormerOperations


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value1921212219202020222222222222232423232223242425262325252626262727282929262828292830
Percentage of AccrualForEnvironmentalLossContingencies61.363.663.664.763.366.764.560.664.764.762.961.157.956.460.560.059.057.557.962.264.963.262.563.456.158.156.860.557.856.557.460.058.359.263.059.162.260.961.759.60.0

wmb:GasPipeline


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value4.04.04.04.04.04.04.05.05.05.06.07.07.07.07.08.08.09.09.07.06.07.08.08.010.010.0
Percentage of AccrualForEnvironmentalLossContingencies12.912.112.111.813.313.312.915.214.714.717.119.418.417.918.420.020.522.523.718.916.218.420.019.524.423.3

wmb:NaturalGasUnderGroundStorageFacilities


Accrual
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-30
Value8.08.08.08.07.06.07.08.07.07.07.07.09.010.08.08.08.08.07.07.07.07.07.07.08.08.08.06.08.07.07.07.09.0117.08.08.08.08.08.08.0
Percentage of AccrualForEnvironmentalLossContingencies25.824.224.223.523.320.022.624.220.620.620.019.423.725.621.120.020.520.018.418.918.918.417.517.119.518.618.214.017.815.214.915.618.822.415.218.217.817.417.017.00.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent


Allowance
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-312012-12-312012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312009-12-31
Value1.01.01.010.010.010.06.06.06.09.09.09.010.010.09.06.06.06.06.05.05.06.03.00.00.01.01.01717181522
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligation

us-gaap:AssetRetirementObligation


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value122211651032998862915831561579573789728644
Percentage of AssetRetirementObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationCurrent

us-gaap:AssetRetirementObligationCurrent


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6348645361574064686635
Percentage of AssetRetirementObligationCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementFrequency

us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue

us-gaap:FairValueInputsLevel1, us-gaap:FairValueMeasurementsRecurring


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value2572432352202141882011871831731501571511451351271191129693878267636360483318
Percentage of AssetRetirementObligationLegallyRestrictedAssetsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationLegallyRestrictedAssetsFairValue us-gaap:FairValueByMeasurementBasis, us-gaap:FairValueByMeasurementFrequency

us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value2572432352202141882011871831731501571511451351271191129693878267636360483318
Percentage of AssetRetirementObligationLegallyRestrictedAssetsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:FairValueMeasurementsRecurring


Asset
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value2572432352202141882011871831731501571511451351271191129693878267636360483318
Percentage of AssetRetirementObligationLegallyRestrictedAssetsFairValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AssetRetirementObligationsNoncurrent

us-gaap:AssetRetirementObligationsNoncurrent


Asset
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value11591117968946801858791497511507464
Percentage of AssetRetirementObligationsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:BusinessAcquisition

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

wmb:CaimanEnergyII, wmb:CaimanEnergyIIAcquisition


Business
Period End2020-11-18
Value41.0
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet

wmb:Sequent, us-gaap:SubsequentEvent


Business
Period End2021-07-01
Value84
Percentage of BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet100.0

us-gaap:CommercialPaper

us-gaap:CommercialPaper


Commercial
Period End2020-09-302019-03-312018-12-312018-09-302017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value4010140.08230.00.00.00.0932.0196135499153017430.07982650.00.02253717100.0
Percentage of CommercialPaper100.0100.00.0100.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.0100.0100.0100.00.0

us-gaap:CommercialPaper dei:LegalEntity, us-gaap:CreditFacility

wmb:WilliamsCompaniesInc, us-gaap:CommercialPaper


Commercial
Period End2020-09-302019-12-312018-12-312018-09-302017-12-31
Value400.00.08240.0
Percentage of CommercialPaper100.00.00.0100.10.0

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance us-gaap:PlanName

us-gaap:CommonStockCapitalSharesReservedForFutureIssuance

wmb:WilliamsCompaniesIncentivePlan


Common
Period End2020-12-31
Value31
Percentage of CommonStockCapitalSharesReservedForFutureIssuance100.0

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNet


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value3825124230188.03117224.05639244.0
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiability


Contract
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value119311711209117012031189121512691331133513971485153515741596
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DebtInstrumentFaceAmount dei:LegalEntity, us-gaap:DebtInstrument

us-gaap:DebtInstrumentFaceAmount

wmb:WilliamsCompaniesInc, wmb:A26PercentSeniorUnsecuredNotesDue2031


Debt
Period End2021-03-02
Value900
Percentage of DebtInstrumentFaceAmount100.0

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet

us-gaap:DebtInstrumentUnamortizedDiscountPremiumNet


Debt
Period End2020-12-312019-12-312018-12-312018-03-282017-12-312017-09-302017-07-032017-02-232016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-31
Value6358627.024273.030-88.0110187-37.0-33.0-32.0-38.0
Percentage of DebtInstrumentUnamortizedDiscountPremiumNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value3975341426423584532952915486384032522671
Percentage of DeferredIncomeTaxLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredRevenueCurrent

us-gaap:DeferredRevenueCurrent


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value129158244361338948247
Percentage of DeferredRevenueCurrent100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAndOtherLiabilitiesNoncurrent

us-gaap:DeferredTaxAndOtherLiabilitiesNoncurrent


Deferred
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302018-12-31
Value217920651923184617291602178216511524
Percentage of DeferredTaxAndOtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsGross

us-gaap:DeferredTaxAssetsGross


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
Value237719511438661142513051047519672711837966
Percentage of DeferredTaxAssetsGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsDomestic


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-31
Value9055441470.06514851340.0
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsDomestic100.0100.0100.00.0100.0100.0100.00.0

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal

us-gaap:DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal


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
Value445362319283313296250194195170278289
Percentage of DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsOther

us-gaap:DeferredTaxAssetsOther


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-31
Value14014794303742979190987058
Percentage of DeferredTaxAssetsOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards us-gaap:IncomeTaxAuthority, us-gaap:TaxCreditCarryforward

us-gaap:DeferredTaxAssetsTaxCreditCarryforwards

us-gaap:InternalRevenueServiceIRS, wmb:ExpirationNone


Deferred
Period End2020-12-312019-12-312018-12-31
Value905539142
Percentage of DeferredTaxAssetsTaxCreditCarryforwards100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign

us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsForeign


Deferred
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value140140140140140193251
Percentage of DeferredTaxAssetsTaxCreditCarryforwardsForeign100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities

us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities


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
Value74772966753145150178126313324257
Percentage of DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates

us-gaap:DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates


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
Value1515141129535655300527254723663314620631978
Percentage of DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

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
Value140823019291510.00.03446100108
Percentage of DeferredTaxLiabilitiesOther100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0

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
Value2320192123170.00.04.04.0102726517843658
Percentage of DeferredTaxLiabilitiesPropertyPlantAndEquipment100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0

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
Value11671221117112941440
Percentage of DefinedBenefitPlanAccumulatedBenefitObligation100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-25000000.0-21000000.0-12000000.0-21000000.0-18000000.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value-101000000.0-243000000.0-347000000.0-375000000.0-535000000.0
Percentage of DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax404.01157.12891.71785.72972.2

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value6438342718
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value203920.0
Percentage of DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent317.2242.10.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.590.03270.04390.03710.0427
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value2.450.03190.04340.03660.0417
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate94.697.698.998.797.7

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
Value3.760.03680.04830.04930.0487
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease100.0100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value3.00.0350.0425
Percentage of DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationWeightedAverageInterestCreditingRate100.0100.0100.0

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
Value220215186206197202
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
Value118312371187131914661464
Percentage of DefinedBenefitPlanBenefitObligation537.7575.3638.2640.3744.2724.8

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value57625960
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value378433467486
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter663.2698.4791.5810.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value14141413
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value961008591
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths685.7714.3607.1700.0

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value13141413
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value82908996
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive630.8642.9635.7738.5

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value13141413
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value82939096
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour630.8664.3642.9738.5

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value14141314
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value86979092
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree614.3692.9692.3657.1

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value14141413
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value91998790
Percentage of DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo650.0707.1621.4692.3

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear

us-gaap:NonqualifiedPlan


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value2.03.03.05.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear100.0100.0100.0100.0

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
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
Value2.05.01.02.04.01.03.04.02.02.05.01.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
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
Value1.02.02.03.0131.032631.043841.0
Percentage of DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear50.040.0200.0150.0325.0100.01066.71575.050.02150.01680.0100.0

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
Value5832282111
Percentage of DefinedBenefitPlanFundedStatusOfPlan100.0100.0100.0100.0100.0

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-312016-12-31
Value17462-55.0-92.0-212.0
Percentage of DefinedBenefitPlanFundedStatusOfPlan300.0193.8-196.4-438.1-1927.3

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-31
Value7.0
Percentage of DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear100.0

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value29291187
Percentage of DefinedBenefitPlanPensionPlanWithProjectedBenefitObligationInExcessOfPlanAssetsProjectedBenefitObligation100.0100.0100.0

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation

us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-31
Value2526367
Percentage of DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation100.0100.0100.0

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage us-gaap:DefinedBenefitPlanByPlanAssetCategories, us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanPlanAssetsTargetAllocationPercentage

us-gaap:EquitySecurities, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value25.00.250.250.46
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage100.0100.0100.0100.0

us-gaap:FixedIncomeSecurities, us-gaap:PensionPlansDefinedBenefit


Defined
Period End2020-12-312019-12-312018-12-312017-12-31
Value75.00.750.750.54
Percentage of DefinedBenefitPlanPlanAssetsTargetAllocationPercentage300.0300.0300.0117.4

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1 us-gaap:RetirementPlanType

us-gaap:DefinedBenefitPlanUltimateHealthCareCostTrendRate1

us-gaap:OtherPostretirementBenefitPlansDefinedBenefit


Defined
Period End2020-12-31
Value4.5
Percentage of DefinedBenefitPlanUltimateHealthCareCostTrendRate1100.0

us-gaap:EmployeeRelatedLiabilitiesCurrent

us-gaap:EmployeeRelatedLiabilitiesCurrent


Employee
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
Value149226205202223215167127137127146158
Percentage of EmployeeRelatedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized us-gaap:PlanName

us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized

wmb:WilliamsCompaniesIncentivePlan


Employee
Period End2020-12-31
Value57
Percentage of EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized100.0

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-31
Value1300100018001800190024003700113059
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

wmb:AppalachiaMidstreamInvestments


Equity
Period End2020-12-312019-12-31
Value12001400
Percentage of EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity92.3140.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName

us-gaap:EquityMethodInvestmentOwnershipPercentage

wmb:AppalachiaMidstreamInvestments


Equity
Period End2020-12-312019-12-312018-12-312017-12-312016-12-312015-12-31
Value66.00.660.660.660.410.45
Percentage of EquityMethodInvestmentOwnershipPercentage100.0100.0100.0100.0100.0100.0

us-gaap:EquityMethodInvestmentOwnershipPercentage us-gaap:ScheduleOfEquityMethodInvestmentEquityMethodInvesteeName, us-gaap:StatementBusinessSegments

wmb:CaimanEnergyII, wmb:NortheastGAndP


Equity
Period End2020-10-312020-09-302020-06-302020-03-312019-12-31
Value58.058.00.580.580.58
Percentage of EquityMethodInvestmentOwnershipPercentage0.00.00.00.087.9

us-gaap:EquityMethodInvestments

us-gaap:EquityMethodInvestments


Equity
Period End2021-06-302021-03-312020-12-312020-09-302020-06-302020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-31
Value5124512951595176515551796235622862616544782174276810651365526615667567386701708471257181733681988712831984007085448945204360398713901342884947
Percentage of EquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0