TMUS


Line plots across dimensions of each concept
Tables

Table of contents



us-gaap:CommonStockValue

us-gaap:CommonStockParOrStatedValuePerShare

us-gaap:CommonStockSharesIssued

us-gaap:CommonStockSharesOutstanding
us-gaap:StatementEquityComponents
us-gaap:SubsequentEventType
us-gaap:CommonStockSharesAuthorized

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic

us-gaap:EarningsPerShareBasic

us-gaap:EarningsPerShareDiluted

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax
us-gaap:ProductOrService

us-gaap:Revenues
us-gaap:ProductOrService
us-gaap:CostOfGoodsAndServicesSold

us-gaap:CostsAndExpenses

us-gaap:SellingGeneralAndAdministrativeExpense

us-gaap:OperatingIncomeLoss

us-gaap:InterestExpenseDebt

us-gaap:OtherNonoperatingIncomeExpense

us-gaap:NonoperatingIncomeExpense

us-gaap:IncomeTaxExpenseBenefit

us-gaap:IncomeTaxesPaidNet

us-gaap:ComprehensiveIncomeNetOfTax

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:Assets

us-gaap:LiabilitiesAndStockholdersEquity

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:AssetsCurrent

us-gaap:CashAndCashEquivalentsAtCarryingValue

us-gaap:AccountsReceivableNetCurrent

us-gaap:InventoryNet

us-gaap:OtherAssetsCurrent
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:TransactionType
us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:PropertyPlantAndEquipmentGross
us-gaap:PropertyPlantAndEquipmentByType
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:PropertyPlantAndEquipmentNet
us-gaap:PropertyPlantAndEquipmentByType

us-gaap:Goodwill

us-gaap:FiniteLivedIntangibleAssetsNet

us-gaap:OtherAssetsNoncurrent
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:TransactionType

us-gaap:LiabilitiesCurrent

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:OtherLiabilitiesCurrent
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

us-gaap:LiabilitiesNoncurrent

us-gaap:LongTermDebtNoncurrent

us-gaap:OtherLiabilitiesNoncurrent
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:StockholdersEquity
us-gaap:StatementEquityComponents

us-gaap:CommonStockValue

us-gaap:RetainedEarningsAccumulatedDeficit
us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:TreasuryStockValue

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:NetCashProvidedByUsedInOperatingActivities

us-gaap:NetIncomeLoss
us-gaap:StatementEquityComponents

us-gaap:DepreciationDepletionAndAmortization

us-gaap:IncreaseDecreaseInInventories

us-gaap:NetCashProvidedByUsedInInvestingActivities

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment

us-gaap:NetCashProvidedByUsedInFinancingActivities

us-gaap:ShareBasedCompensation

us-gaap:OperatingLeaseRightOfUseAsset

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents

tmus:AdjustmentsToAdditionalPaidInCapitalExecutivePutOption
us-gaap:StatementEquityComponents
us-gaap:BusinessAcquisition, us-gaap:PlanName, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType
tmus:BusinessCombinationEquityAwardsAssumedInAcquisition
us-gaap:BusinessAcquisition, us-gaap:StatementClassOfStock
tmus:BusinessCombinationNumberOfSharesOfAcquireeStockExchangedForEachShareOfAcquirerStock
us-gaap:BusinessAcquisition, us-gaap:StatementClassOfStock, dei:LegalEntity
us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
tmus:BusinessCombinationRequiredFinancingFeesByAcquirerToAffiliateUponConsummation
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
tmus:CashFlowsBetweenTransferorandTransfereenetcashproceedsduringtheperiod

tmus:ChangeInCapitalExpendituresIncurredButNotYetPaid

tmus:FinanceLeaseExpense

tmus:IncreaseDecreaseinOperatingLeaseLiability

tmus:IncreaseDecreaseinOperatingLeaseRightofUseAsset
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:SubsequentEventType, tmus:LicenseAuctionType
tmus:NumberofLicensesAcquired
us-gaap:BusinessAcquisition
tmus:PaymentsOfMergerRelatedCostsOperatingActivities

tmus:ReceivableWithImputedInterestDiscountIncreaseDecrease
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:StatementEquityComponents
tmus:TransferRSUtoNQDCPlan

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
us-gaap:StatementEquityComponents
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities
us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType
us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
us-gaap:BusinessAcquisition
us-gaap:BusinessCombinationAcquisitionRelatedCosts

us-gaap:CapitalizedContractCostAmortization

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers

us-gaap:ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset

us-gaap:ContractWithCustomerLiabilityRevenueRecognized

us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1
us-gaap:StatementEquityComponents
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType, us-gaap:VariableRate
us-gaap:DebtInstrumentBasisSpreadOnVariableRate1
us-gaap:Range, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DeferredIncomeTaxExpenseBenefit

us-gaap:FinanceLeaseInterestExpense

us-gaap:FinanceLeaseInterestPaymentOnLiability

us-gaap:FinanceLeaseRightOfUseAssetAmortization

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:FinancingReceivableSignificantSales
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities

us-gaap:IncreaseDecreaseInAccountsReceivable

us-gaap:IncreaseDecreaseInFinanceReceivables

us-gaap:IncreaseDecreaseInOtherOperatingAssets

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements

us-gaap:InterestCostsCapitalized

us-gaap:InterestExpenseRelatedParty

us-gaap:InterestIncomeOther

us-gaap:InterestPaidNet

us-gaap:LeaseCost

us-gaap:NoncashOrPartNoncashAcquisitionDebtAssumed1

us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1

us-gaap:NoncashOrPartNoncashAcquisitionInventoryAcquired1

us-gaap:OperatingLeaseExpense

us-gaap:OperatingLeasePayments

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent

us-gaap:OtherComprehensiveIncomeLossNetOfTax
us-gaap:StatementEquityComponents

us-gaap:OtherOperatingActivitiesCashFlowStatement

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities
us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:PaymentsForProceedsFromOtherInvestingActivities
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:PaymentsOfFinancingCosts

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation

us-gaap:PaymentsToAcquireIntangibleAssets
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, tmus:LicenseAuctionType
us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:SubsequentEventType, tmus:LicenseAuctionType

us-gaap:ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables
us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType
us-gaap:ProceedsFromIssuanceOfDebt

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities

us-gaap:ProceedsFromShortTermDebt

us-gaap:ProvisionForDoubtfulAccounts

us-gaap:ProvisionForLoanLeaseAndOtherLosses
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable
us-gaap:ReceivableWithImputedInterestEffectiveYieldInterestRate
us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:RepaymentsOfDebt

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations

us-gaap:RepaymentsOfLongTermLinesOfCredit

us-gaap:RepaymentsOfShortTermDebt

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability

us-gaap:SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:StatementEquityComponents
us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures
us-gaap:StatementEquityComponents
us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan
us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised
us-gaap:StatementEquityComponents

us-gaap:VariableLeaseCost
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument
tmus:BusinessCombinationRequiredFeesByAcquirerAccruedAmount
us-gaap:CounterpartyName, us-gaap:BusinessAcquisition

tmus:FinancingReceivableAllowanceForCreditLossAndImputedDiscountCurrent

tmus:FinancingReceivableAllowanceForCreditLossAndImputedDiscountNoncurrent
us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment
tmus:FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear
us-gaap:InternalCreditAssessment

tmus:ReceivableWithImputedInterestDiscountAndAllowancesPercentageOfGrossAccountsReceivable
us-gaap:TransactionType
tmus:RevolvingReceivablesFacilityMaximumBorrowingCapacity
us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity
tmus:RevolvingReceivablesFacilityOutstandingBorrowings

tmus:UnamortizedImputedDiscountandAllowanceforCreditLosses
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:AccountsPayableRelatedPartiesCurrent

us-gaap:AdditionalPaidInCapitalCommonStock

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent
us-gaap:BusinessAcquisition, dei:LegalEntity
us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

us-gaap:CapitalizedContractCostNet

us-gaap:ContractWithCustomerAssetNet

us-gaap:ContractWithCustomerAssetNetCurrent

us-gaap:ContractWithCustomerLiability

us-gaap:ContractWithCustomerLiabilityCurrent

us-gaap:DeferredIncomeTaxLiabilitiesNet
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding
us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType
us-gaap:DerivativeCollateralRightToReclaimCash
us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType
us-gaap:DerivativeLiabilities
us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship
us-gaap:DerivativeLiabilitiesCurrent

us-gaap:DueFromAffiliateCurrent

us-gaap:DueToAffiliateCurrent

us-gaap:DueToAffiliateNoncurrent

us-gaap:FinanceLeaseLiabilityCurrent

us-gaap:FinanceLeaseLiabilityNoncurrent

us-gaap:FinanceLeaseRightOfUseAsset

us-gaap:FinancingReceivableAllowanceForCreditLosses
us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear
us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment
us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear
us-gaap:InternalCreditAssessment

us-gaap:GuaranteeObligationsCurrentCarryingValue

us-gaap:IndefiniteLivedLicenseAgreements
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument
us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:LoansPayableFairValueDisclosure

us-gaap:NotesAndLoansReceivableNetCurrent

us-gaap:NotesAndLoansReceivableNetNoncurrent
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType
us-gaap:NotesPayableFairValueDisclosure
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:NotesReceivableGross
us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:NotesReceivableNet
us-gaap:BalanceSheetLocation

us-gaap:OperatingLeaseLiabilityCurrent

us-gaap:OperatingLeaseLiabilityNoncurrent
us-gaap:TransactionType
us-gaap:OtherLiabilities
us-gaap:StatementClassOfStock
us-gaap:PreferredStockParOrStatedValuePerShare
us-gaap:StatementClassOfStock
us-gaap:PreferredStockSharesAuthorized
us-gaap:StatementClassOfStock
us-gaap:PreferredStockSharesOutstanding

us-gaap:ReceivableWithImputedInterestDiscount

us-gaap:ReceivableWithImputedInterestNetAmount
us-gaap:FinancingReceivablesPeriodPastDue
us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment
us-gaap:InternalCreditAssessment

us-gaap:RevenueRemainingPerformanceObligation
us-gaap:ProductOrService

us-gaap:SaleLeasebackTransactionAmountDueUnderFinancingArrangement
us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType
us-gaap:SecuredDebt
us-gaap:DebtInstrument, us-gaap:SubsequentEventType, dei:LegalEntity

us-gaap:ShortTermBorrowings
us-gaap:ShareRepurchaseProgram, us-gaap:StatementScenario
us-gaap:StockRepurchaseProgramAuthorizedAmount1
us-gaap:BalanceSheetLocation, us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType
us-gaap:TradingSecurities
us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis
us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:TreasuryStockShares

Tables

  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁████████████0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.037000.037000.036000.036000.036000.036000.036000.036000.036000.036000.035000.035000.0NANANA
us-gaap:CommonStockParOrStatedValuePerShare ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁████████████1e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-050.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.0001NANANA
us-gaap:CommonStockSharesIssued ██████████████▇▇▇▇▇▇▇▇▇▇▇▇▆▆▁▁▁▁▁▁▁▁▁▁▁▁862858857855855851849848854860833832832827825824823819817816811808808808804803729727365364363363363362362361358355354353NANANA
us-gaap:CommonStockSharesOutstanding ██████████████▇▇▇▇▇▇▇▇▇▇▇▇▆▆▁▁▁▁▁▁▁▁▁▁▁▁861856855854854850848847853859831831830826824822822818816814810807807807802801728726365364363363363362362361358355354353NANANA
 us-gaap:CommonStockSharesOutstanding us-gaap:StatementEquityComponents us-gaap:CommonStock█▆▅▄▄▂▂▁▄▇861856855854854850848847853859NANANA826NANANA818NANANA807NANANA801728726NA364NANANA362NANANA355NANANANANA
 us-gaap:CommonStockSharesAuthorized us-gaap:SubsequentEventType us-gaap:SubsequentEventNANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding ██████████████▇▇█▇▇▇▇▇▇▇▇▆▆▅▁▃▁▁▁865864862860858856853852862871871870869867832829859824822821808821807813802761726664366535365363364NA364365361NA356355354355357
us-gaap:WeightedAverageNumberOfSharesOutstandingBasic ██████████████▇▇▇▇▇▇▇▇▇▇▇▇▆▅▁▃▁▁▁858856854854851849847847855837831830827824822822819816815811808807807803802761726664364535363363362NA362360356NA353353352352351
us-gaap:EarningsPerShareBasic ▄▃▃▄▄▃▃▃▃█▃▃▃▂▂▂▃▂▂▂▁▂▁▂▁▁▁▁▁▂▂▂▂▂▂▂▂▁▂▂▂▂▂1.110.881.021.11.070.750.940.920.783.220.650.680.830.460.430.260.570.350.150.43-0.090.13-0.120.49-0.19-0.03-0.05-0.020.050.090.530.410.060.250.190.230.160.040.220.220.060.210.07
us-gaap:EarningsPerShareDiluted ▄▃▄▄▄▃▃▃▃█▃▃▃▂▂▂▃▂▂▂▁▂▁▂▁▁▁▁▂▂▃▂▂▂▂▂▂▁▂▂▂▂▂1.10.871.011.091.060.750.930.920.783.110.630.670.80.450.420.250.560.340.150.42-0.090.12-0.120.48-0.19-0.03-0.05-0.020.050.090.520.410.060.250.190.230.150.040.220.220.060.210.07
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax ██▇▇▇█▇▇▇▇▇▇▇▇▆▆▆▆▅▆▅▆▅▅▅▅▅▄▃▄▄▄▄▁▁▁▁▁▁▁▁▁▁11113118781106110979110801144510839105711045510759100191021396131017592469222859982477849817977788154735071856875682766886228467749094893488350341238120512091194106510201012970895859
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService tmus:BrandedPostpaidRevenue██▇▆▅▄▃▃▂▁▁58875821574656135493538452445164507049834920NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService tmus:BrandedPostpaidRevenuePhone█▇▇▆▅▅▄▄▃▂▂▁▁5577545954005287518350874955489248004680462645654500NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService tmus:BrandedPrepaidRevenue▁▆▄▃▄▇▆██▁▂23732393238523792386239923952402240223712376NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService tmus:ProductEquipment▁▇▂▂▄█▃▃▃▆▁21172875218622632516294023912325235327082118NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService us-gaap:Service██▇▆▅▅▄▃▂▂▁87138708858384268277818980667931780677577629NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:Revenues ██▇▇▇█▇▇▇▇▇▇▇▇▆▆▆▆▅▆▅▆▅▅▅▅▅▄▃▄▄▄▄▁▁▁▁▁▁▁▁▁▁11113118781106110979110801144510839105711045510759100191021396131017592469222859982477849817977788154735071856875682766886228467749094893488350341238120512091194106510201012970895859
 us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService tmus:ProductEquipment▁█▂▂▄█▃▃▃▇▂25293518270426613016356828622772284534592617NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
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us-gaap:CostsAndExpenses ▆█▆▆▆▇▆▆▆▆▅▅▅▆▄▅▃▃▃▃▃▃▃▁▂957410644959094389604103089399912191739647869687978576923382578454749674097336758276617721730162236903NA639160471179NA9669691178NA10289991049NA812814865737743
us-gaap:SellingGeneralAndAdministrativeExpense ██▇▇▇▇▆▆▆▆▅▅▅▅▅▄▄▄▃▃▂▂▂▁▁3688365634983543344234983314318531643291309829152955295928982772274927552624243823722333228321512096NA19331847194NA163167176NA162154169NA147158159138142
us-gaap:OperatingIncomeLoss █▇███▆██▇▆▇▇▆▅▆▅▆▅▃▄▂▃▁▅▁▂▂▂▂▂▂▃▂▂▂▂▂▂▂▂▂▂▂1539123414711541147611371440145012821112132314161037942989768110383851359711743349962-2813929718110712129231198215176210145207207198105158115
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us-gaap:OtherNonoperatingIncomeExpense ▆▇▇▅▇▇▇▃▇█▇▁▇▇▇▇▇▇▇▇▆█▆▆▆-1043-227-33-6410161-9220-1-3-2-3-11-821-14-12-6NA-71180NA000NA000NA00000
us-gaap:NonoperatingIncomeExpense ▆▇▇▆▇▆▆▄▃▃▃▁▂▅▃▃▄▄▇███▇▆█-282-269-276-301-273-299-310-382-401-398-417-482-430-336-391-396-352-357-275-234-221-233-260-285-225NA-291-176-75NA-13-68-69NA-68-75-55NA-81-65-67-70-70
us-gaap:IncomeTaxExpenseBenefit █████████▁██▇██▇█▇▇▇▇▇▇█▇306214325301295198335286210-1993356353-912162321472721841002-4199-117286-102NA422112NA85947NA385033NA4952151418
us-gaap:IncomeTaxesPaidNet ▅▃▂█▇▃▆▃▁▂▁▂▄▁▂▄▁▃▂▆▁▃▁24115403211291018261524172138312130NA0NANANA-4NANANANANANANANANANANANANANA
us-gaap:ComprehensiveIncomeNetOfTax ▂▄▃▃▃▂▃▃▃█▃▃▃▂▂▂▃▂▂▂▁▂▁▂▁1599536136477193087957856682711551582699390368228476297136361-63101-93391-154NA-36-5421NA19614920NA637459NA7680237437
us-gaap:NetIncomeLoss ▄▃▄▄▄▃▃▃▃█▃▃▃▂▂▂▃▂▂▂▁▂▁▂▁▁▁▁▁▁▂▂▁▂▂▂▂▁▂▂▁▂▁9517518709399086407957826712707550581698390366225479297138361-63101-94391-151-20-36-1619311921482191698456137779227326
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▃▆█▇▁▄▄▂951751870939908640795782671NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:Assets █████▇▇▆▇▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▄▄▂▁▁▁▁▁▁▁▁▁▁▁87226869218610984788830737246870182696927200470563679236715968048658916427263968630636243658473571885655856653551155166450169499534576744734136621018910071972995099482927991018648791883207479NANANA
us-gaap:LiabilitiesAndStockholdersEquity █████▇▇▆▇▇▆▆▆▆▆▆▆▆▅▅▅▅▅▅▅▅▄▄▂▁▁▁▁▁▁▁▁▁▁▁87226869218610984788830737246870182696927200470563679236715968048658916427263968630636243658473571885655856653551155166450169499534576744734136621018910071972995099482927991018648791883207479NANANA
us-gaap:StockholdersEquity ███▇▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁28977287892777126967261812471824355233902287622559202771961418963182361785317395171041655716252160531565015663145251456314156142451241512359339133583322311629572927282527492632254125062416NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▇▆▅▄▃▂▁▃█38597384983843338242381003801037956377863805738629NANANA38846NANANA38666NANANA38503NANANA37330NANANA1826NANANA1784NANANA1686NANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:AssetsCurrent ▅▅▄▄▅▄▄▄▅▅▄▄█▇▇▇▇█▆▆▆▇▇▅▇▆▄▄▄▂▂▂▂▂▂▂▁▁▁▁94879305845881148745828172867091960989157449678015899142171353014280133441489012656116571163513984132959896129571222879647313677231873184289527672743254925682229159322451487NANANA
us-gaap:CashAndCashEquivalentsAtCarryingValue ▂▂▂▂▂▂▁▁▃▂▂▁█▆▆▆▄▅▃▃▄▆▆▄▆▆▃▃▃▃▃▃▃▃▃▃▂▂▂▂▂▂▂111215281653110514391203329215252712197391817501550053525538364745822633264230325315578730805471589123652362270123682057190118861943184018551321796889776914955869
us-gaap:AccountsReceivableNetCurrent ▂▂▁▁▁▁▁▁▁▂▁▁▂▂▂▂▂▁▁▁▂▂█▇▆▆▅▄1836188818221817174917691652163016891915173417191851189618851866188017881810182719331865443339393560361933703000NA2678NANANANANANA56584647NANANA
us-gaap:InventoryNet ▆▄▃▄▆▅▄▄▆█▄▅▄▅▄▇▇▆▆▅▆▅▂▂▂▁▂▃1225964801998126110849589981311156699912081021111110391388144312951236113512301085674791676586761819NA457NANANANANANANANANANANANANA
us-gaap:OtherAssetsCurrent █▇▅▅▅▅▆▆▅▆▅▅▄▅▄▄▄▅▆▃▄▅▄▄▃▄▃▂▁▁▁▁▁▁▁▁▁▁▁▁2882230517371730181416761969192917881903181715801406153713361415126318131890101910631593136911799051252676598706952223544424958634031NANANA
 us-gaap:OtherAssetsCurrent us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee,us-gaap:TransactionType us-gaap:VariableInterestEntityPrimaryBeneficiary,tmus:FactoringandEIPSecuritizationArrangement▁█688694NANANA660NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherAssetsCurrent us-gaap:TransactionType tmus:EIPSecuritizationArrangement▆▆▆▆▆▆██▇█▇▆▆▇▆▅▁▁335344347340327321405394370403357349348371350313154164NANANA0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherAssetsCurrent us-gaap:TransactionType,us-gaap:VariableInterestEntitiesByClassificationOfEntity tmus:FactoringArrangement,us-gaap:VariableInterestEntityNotPrimaryBeneficiary█████▇▆▆▅▄▃▃▃▃▁▁▁▃353350352351342339299287266236225223227207167163172206NANANA204NANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
 us-gaap:PropertyPlantAndEquipmentGross us-gaap:PropertyPlantAndEquipmentByType us-gaap:AssetsLeasedToOthers█▁12231139NANANA1164NANANA1209NANANA2624NANANA2236NANANA0NANANANANANANANANANANANANANANANANANANANANA
 us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment us-gaap:PropertyPlantAndEquipmentByType us-gaap:AssetsLeasedToOthers▁█404407NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:PropertyPlantAndEquipmentNet ███▇▇█████▇▇▇▇▇▇▇▇▆▆▆▆▅▅▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁22149219842209821847214642335922502223752230822196215702142321235209432057420570206252000018101169101648316245157981553715427153491537015185417742924197406940074017400938563738365934233306NANANA
us-gaap:Goodwill ███▇▇▇▇▇▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁1930193019301901190119011901190119011683168316831683168316831683168316831683168316831683168316831683168316831683NA0NANANA8134NANANANANANANANANA
us-gaap:FiniteLivedIntangibleAssetsNet ▁▁▁▁▁▂▂▂▂▂▂▂▂▃▃▃▃▄▄▄▅▅▆▆▇▇▇█9111514415717419822926029121725629633837643148654159466273580587095610401123120412971390NA79NANANANANANANANANANANANANA
us-gaap:OtherAssetsNoncurrent ██▇▇▇▇▆▅▅▄▄▄▃▃▃▃▂▂▂▂▂▂▇▇▆▆▄▃▁▁▁▁▁▁▁▁▁▁▁▁2026189117991707166116231488131111579128588157686746255824714673513203072881694168015961367948661141141123194184173173126120123140193NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:LiabilitiesCurrent █▇▇▇▇▆▅▅▇▆▅▅█▅▅▅▅▅▅▅▅▅▅▄▄▃▃▃▂▁▁▁▁▁▁▁▁▁▁▁14756125061286913173133271026785729281123571151581038828152859022811987529369952888438264864987768605713161105808551453983189847784741778816779725903802689677NANANA
us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent ▄▅▄▆▆▇▅▅▆█▄▄▄▆▄▅▆▇▆▅▅▆▄▃▂▁▁▁6003674664067260733077416500668671578528607162256160715261466985743180847474664567937364605755554792456743244305NA3475NANANANANANA609521418426NANANA
us-gaap:OtherLiabilitiesCurrent █▅▆▅▄▃▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▃▂▃▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁▁28011673188315641129787367359353414396395393405355370425410410558589635613621399353243198237166302925262925343334NANANA
 us-gaap:OtherLiabilitiesCurrent us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee,us-gaap:TransactionType us-gaap:VariableInterestEntityPrimaryBeneficiary,tmus:FactoringandEIPSecuritizationArrangement█▁355342NANANA149NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
 us-gaap:OtherLiabilitiesCurrent us-gaap:TransactionType,us-gaap:VariableInterestEntitiesByClassificationOfEntity tmus:FactoringArrangement,us-gaap:VariableInterestEntityNotPrimaryBeneficiary██▆▇▅▃▄▃▂▄▃▃▃▃▁▁▂▁355342275293230149174159118180155145127129576410873NANANA55NANANANANANANANANANANANANANANANANANANANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:LiabilitiesNoncurrent ▇███▇▅▅▅▅▅▆▅▄▅▅▅▅▅▃▃▃▃▃▂▂▂▁▁43493456264546944648435653748337255370213677136489395433871733800386333830037821365903635133378328713225932214319852997029903299002783826977NA21915NANANANANANANANANANANANANA
us-gaap:LongTermDebtNoncurrent ▃▃▃▃▃▄▄▄▄▄▄▄▄███▇▇▆▆▅▅▆▅▅▅▁▁109591095810956109541095212124119931206512127121211316313206131052183221825215742050520484164421638616261162731628414369143311434567616276NA0NANANANANANANANANANANANANA
us-gaap:OtherLiabilitiesNoncurrent ▇▇▇▇▇▇▇▇▇▇▇▇██████▆▅▅▅▄▄▅▅▅▅▁▁▁▁▁▁▁▁▁▁▁▁959954936913896967985968933935967971100410261007103810471067795642654616558505671701632636909091919090928073728281NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:StockholdersEquity ███▇▇▇▇▇▆▆▆▆▅▅▅▅▅▅▅▅▄▄▄▄▄▄▄▄▁▁▁▁▁▁▁▁▁▁▁▁28977287892777126967261812471824355233902287622559202771961418963182361785317395171041655716252160531565015663145251456314156142451241512359339133583322311629572927282527492632254125062416NANANA
 us-gaap:StockholdersEquity us-gaap:StatementEquityComponents us-gaap:AdditionalPaidInCapital█▇▆▅▄▃▂▁▃█38597384983843338242381003801037956377863805738629NANANA38846NANANA38666NANANA38503NANANA37330NANANA1826NANANA1784NANANA1686NANANANANA
us-gaap:CommonStockValue ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁████████████0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.037000.037000.036000.036000.036000.036000.036000.036000.036000.036000.035000.035000.0NANANA
us-gaap:RetainedEarningsAccumulatedDeficit ▅▅▅▅▄▄▄▃▃▃▂▂▂▂▂▂▁▁▁▁▁▁▁▁▁▁▁▁████████████-7949-8833-9584-10454-11393-12954-13594-14389-15179-16074-18781-19331-19912-20610-21000-21366-21591-22108-22405-22543-22904-22841-22942-22848-23239-23088-23068-230321572155315211329118011591068998914858844767NANANA
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us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax ▁▄▃▅▆▇██████████████████████████████████-1660-868-1070-813-521-332005843211-1-4-1-1111100322-7-9-4-8-9-9-12-72-1-10-9NANANA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▇▄▃▃▄▂▇█▆▆▅▆▆▃█▅▄▁▄▃1617153717482147139295491412617702058236218291713160217401768102522331531116148913551062NA759NANANA223NANANA136NANANA138NA341NA225313NA
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▇▆▇██▇▇▇▆▁▆▇▆▇▆▄▇▇▅▆▇-1580-887-657-1615-966231-42-306-462-926-1455-7133-1550-1294-1859-667-1860-4322-1209-1337-2692-1806-1165NA-965NANANA-3369NANANA-182NANANA-168NA-867NA-185-222NA
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▄▃▄▄▃▁▅▄▄▂▆▄▄▅▄█▄▄▄▄▇-453-775-543-866-190-311-758-32671000-652-349-20161838-160-67790-1004038-331-214-80-212810NA-214NANANA3479NANANA-11NANANA555NA638NA-54-5NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:NetCashProvidedByUsedInOperatingActivities ▅▅▆▇▄▃▃▄▂▇█▆▆▅▆▆▃█▅▄▁▄▃1617153717482147139295491412617702058236218291713160217401768102522331531116148913551062NA759NANANA223NANANA136NANANA138NA341NA225313NA
us-gaap:NetIncomeLoss ▄▃▄▄▄▃▃▃▃█▃▃▃▂▂▂▃▂▂▂▁▂▁▂▁▁▁▁▁▁▂▂▁▂▂▂▂▁▂▂▁▂▁9517518709399086407957826712707550581698390366225479297138361-63101-94391-151-20-36-1619311921482191698456137779227326
 us-gaap:NetIncomeLoss us-gaap:StatementEquityComponents us-gaap:RetainedEarnings█▃▆█▇▁▄▄▂951751870939908640795782671NANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANA
us-gaap:DepreciationDepletionAndAmortization ▇█▇▆▆▇▇▇▆▅▅▆▆▆▆▆▆▄▂▁▁▁▂▂▁1718177616551585160016401637163415751485141615191564154815681575155213691157107510871090113811291055NA987888173NA163153152NA139134128NA1131091079891
us-gaap:IncreaseDecreaseInInventories ▄▄▂▂▃▃▃▂▂▅▂▃▂▃▁▂▅█▆▂▃51147836-162265244115-125-33816-113185-44305-301-38011522915-87145NANANANANANANA-4NANANA12NANANA124NA-69NA-29-11NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:NetCashProvidedByUsedInInvestingActivities ▆▇▇▆▇██▇▇▇▆▁▆▇▆▇▆▄▇▇▅▆▇-1580-887-657-1615-966231-42-306-462-926-1455-7133-1550-1294-1859-667-1860-4322-1209-1337-2692-1806-1165NA-965NANANA-3369NANANA-182NANANA-168NA-867NA-185-222NA
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment ▇▃▅▇█▃▄▆▄▁▅▄▅▁▃▄▄▅▃▃▂▄▃17531157151417891931118413621629136692114411347152885911591349133514311120119198212991131NA947NANANA154NANANA144NANANA187NA232NA139181NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
us-gaap:NetCashProvidedByUsedInFinancingActivities ▄▃▄▃▄▄▃▁▅▄▄▂▆▄▄▅▄█▄▄▄▄▇-453-775-543-866-190-311-758-32671000-652-349-20161838-160-67790-1004038-331-214-80-212810NA-214NANANA3479NANANA-11NANANA555NA638NA-54-5NA
  2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.037000.037000.036000.036000.036000.036000.036000.036000.036000.036000.035000.035000.035000.0
Percentage of CommonStockValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Par Or Stated Value Per Share

us-gaap:CommonStockParOrStatedValuePerShare



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value1e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-051e-050.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.00010.0001
Percentage of CommonStockParOrStatedValuePerShare100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Issued

us-gaap:CommonStockSharesIssued



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value862858857855855851849848854860833832832827825824823819817816811808808808804803729727365364363363363362362361358355354353352
Percentage of CommonStockSharesIssued100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Common Stock Shares Outstanding

us-gaap:CommonStockSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value861856855854854850848847853859831831830826824822822818816814810807807807802801728726365364363363363362362361358355354353352
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-312008-12-31
Value861856855854854850848847853859826818807801728726364362355352350
Percentage of CommonStockSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Common Stock Shares Authorized

us-gaap:SubsequentEventType

us-gaap:CommonStockSharesAuthorized

us-gaap:SubsequentEvent



Period End2020-04-01
Value2000
Percentage of CommonStockSharesAuthorized100.0

Weighted Average Number Of Diluted Shares Outstanding

us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value865864862860858856853852862871871870869867832829859824822821808821807813802761726664366535365363364364365361356355354355357
Percentage of WeightedAverageNumberOfDilutedSharesOutstanding100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Weighted Average Number Of Shares Outstanding Basic

us-gaap:WeightedAverageNumberOfSharesOutstandingBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value858856854854851849847847855837831830827824822822819816815811808807807803802761726664364535363363362362360356353353352352351
Percentage of WeightedAverageNumberOfSharesOutstandingBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Basic

us-gaap:EarningsPerShareBasic



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.110.881.021.11.070.750.940.920.783.220.650.680.830.460.430.260.570.350.150.43-0.090.13-0.120.49-0.19-0.03-0.05-0.020.050.090.530.410.060.250.190.230.160.040.220.220.060.210.07
Percentage of EarningsPerShareBasic100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Earnings Per Share Diluted

us-gaap:EarningsPerShareDiluted



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1.10.871.011.091.060.750.930.920.783.110.630.670.80.450.420.250.560.340.150.42-0.090.12-0.120.48-0.19-0.03-0.05-0.020.050.090.520.410.060.250.190.230.150.040.220.220.060.210.07
Percentage of EarningsPerShareDiluted100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenue From Contract With Customer Excluding Assessed Tax

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value11113118781106110979110801144510839105711045510759100191021396131017592469222859982477849817977788154735071856875682766886228467749094893488350341238120512091194106510201012970895859
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

tmus:BrandedPostpaidRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value58875821574656135493538452445164507049834920
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.049.051.951.149.647.048.448.948.546.349.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax53.049.051.951.149.647.048.448.948.546.349.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:BrandedPostpaidRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:BrandedPostpaidRevenueOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value310362346326310297289272259303294255225
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.83.03.13.02.82.62.72.62.52.82.92.52.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.83.03.13.02.82.62.72.62.52.82.92.52.3
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:BrandedPostpaidRevenueOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:BrandedPostpaidRevenuePhone



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value5577545954005287518350874955489248004680462645654500
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax50.246.048.848.246.844.445.746.345.943.546.244.746.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax50.246.048.848.246.844.445.746.345.943.546.244.746.8
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:BrandedPostpaidRevenuePhone100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:BrandedPrepaidRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value23732393238523792386239923952402240223712376
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.420.121.621.721.521.022.122.723.022.023.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax21.420.121.621.721.521.022.122.723.022.023.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:BrandedPrepaidRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:LeaseOfMobileCommunicationDevicesandAccessories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value165153142143161168176177171160159234324
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.31.31.31.51.51.61.71.61.51.62.33.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.51.31.31.31.51.51.61.71.61.51.62.33.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:LeaseOfMobileCommunicationDevicesandAccessories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:ProductEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value21172875218622632516294023912325235327082118
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.024.219.820.622.725.722.122.022.525.221.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax19.024.219.820.622.725.722.122.022.525.221.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:ProductEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:RoamingandOtherServiceRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value128153131121941028990687959
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.31.21.10.80.90.80.90.70.70.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.21.31.21.10.80.90.80.90.70.70.6
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:RoamingandOtherServiceRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:WholesaleServiceRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value325341321313304304338275266324274
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.92.92.92.72.73.12.62.53.02.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.92.92.92.92.72.73.12.62.53.02.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:WholesaleServiceRevenue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductAndServiceOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value283295292290287316382315296294272
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.52.62.62.62.83.53.02.82.72.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.52.52.62.62.62.83.53.02.82.72.7
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductAndServiceOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value87138708858384268277818980667931780677577629
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.473.377.676.774.771.674.475.074.772.176.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax78.473.377.676.774.771.674.475.074.772.176.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Revenues

us-gaap:Revenues



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value11113118781106110979110801144510839105711045510759100191021396131017592469222859982477849817977788154735071856875682766886228467749094893488350341238120512091194106510201012970895859
Percentage of Revenues100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Sales Revenue Net

Sales Revenue Goods Net

Cost Of Goods And Services Sold

us-gaap:ProductOrService

us-gaap:CostOfGoodsAndServicesSold

tmus:ProductEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value25293518270426613016356828622772284534592617
Percentage of CostOfGoodsAndServicesSold100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax22.829.624.424.227.231.226.426.227.232.126.1
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax tmus:ProductEquipment119.5122.4123.7117.6119.9121.4119.7119.2120.9127.7123.6

us-gaap:Service



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-30
Value16391694173316491546160215861530158915801594
Percentage of CostOfGoodsAndServicesSold64.848.264.162.051.344.955.455.255.945.760.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.714.315.715.014.014.014.614.515.214.715.9
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:Service18.819.520.219.618.719.619.719.320.420.420.9

Cost Of Services Excluding Depreciation Depletion And Amortization

Cost Of Goods Sold

Cost Of Services

Costs And Expenses

us-gaap:CostsAndExpenses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value957410644959094389604103089399912191739647869687978576923382578454749674097336758276617721730162236903639160471179966969117810289991049812814865737743
Percentage of CostsAndExpenses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax86.289.686.786.086.790.186.786.387.789.786.886.189.290.789.391.787.289.893.592.798.594.799.386.6100.495.697.125.219.819.823.485.382.687.879.680.489.282.386.5

General And Administrative Expense

Selling General And Administrative Expense

us-gaap:SellingGeneralAndAdministrativeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value368836563498354334423498331431853164329130982915295529592898277227492755262424382372233322832151209619331847194163167176162154169147158159138142
Percentage of SellingGeneralAndAdministrativeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax33.230.831.632.331.130.630.630.130.330.630.928.530.729.131.330.132.033.433.429.830.528.631.129.930.528.929.74.23.33.43.513.512.814.214.415.716.515.516.6

Selling And Marketing Expense

Operating Income Loss

us-gaap:OperatingIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1539123414711541147611371440145012821112132314161037942989768110383851359711743349962-2813929718110712129231198215176210145207207198105158115
Percentage of OperatingIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax13.810.413.314.013.39.913.313.712.310.313.213.910.89.310.78.312.810.26.57.31.55.30.713.4-0.42.04.42.92.32.56.06.42.017.414.717.412.219.520.419.610.817.713.5

Interest Expense

Interest And Debt Expense

Interest Expense Debt

us-gaap:InterestExpenseDebt



Period End2020-03-312019-03-312013-06-30
Value185179109
Percentage of InterestExpenseDebt100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.71.61.8

Other Nonoperating Income Expense

us-gaap:OtherNonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value-1043-227-33-6410161-9220-1-3-2-3-11-821-14-12-6-7118000000000000
Percentage of OtherNonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-0.10.00.0-0.20.1-0.00.0-0.60.10.10.0-0.90.00.0-0.0-0.0-0.0-0.0-0.00.0-0.10.3-0.2-0.2-0.1-0.11.90.00.00.00.00.00.00.0-0.0-0.0-0.0-0.0-0.0

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

Income Loss From Continuing Operations Before Income Taxes Domestic

Income Loss From Continuing Operations Before Income Taxes Foreign

Nonoperating Income Expense

us-gaap:NonoperatingIncomeExpense



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value-282-269-276-301-273-299-310-382-401-398-417-482-430-336-391-396-352-357-275-234-221-233-260-285-225-291-176-75-13-68-69-68-75-55-81-65-67-70-70
Percentage of NonoperatingIncomeExpense100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-2.5-2.3-2.5-2.7-2.5-2.6-2.9-3.6-3.8-3.7-4.2-4.7-4.5-3.3-4.2-4.3-4.1-4.3-3.5-2.9-2.8-2.9-3.5-4.0-3.3-4.4-2.8-1.6-0.3-1.4-1.4-5.7-6.3-4.7-8.0-6.5-7.0-7.9-8.3

Income Tax Expense Benefit

us-gaap:IncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value306214325301295198335286210-1993356353-912162321472721841002-4199-117286-102422112859473850334952151418
Percentage of IncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax2.81.82.92.72.71.73.12.72.0-18.53.63.5-0.92.12.51.63.22.21.30.0-0.51.2-1.64.0-1.50.60.30.31.81.90.23.24.12.84.85.21.61.62.2

Income Taxes Paid Net

us-gaap:IncomeTaxesPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-31
Value241154032112910182615241721383121300-4
Percentage of IncomeTaxesPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax0.20.10.00.40.30.10.30.10.00.10.00.10.20.00.00.20.00.20.10.40.00.20.00.0-0.1

Comprehensive Income Net Of Tax

us-gaap:ComprehensiveIncomeNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value1599536136477193087957856682711551582699390368228476297136361-63101-93391-154-36-5421196149206374597680237437
Percentage of ComprehensiveIncomeNetOfTax100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax1.48.05.55.96.52.77.37.46.425.25.55.77.33.84.02.55.53.61.74.4-0.81.2-1.35.4-2.2-0.5-0.90.54.03.10.45.36.25.07.58.02.48.34.4

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value9517518709399086407957826712707550581698390366225479297138361-63101-94391-151-20-36-1619311921482191698456137779227326
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.66.37.98.68.25.67.37.46.425.25.55.77.33.84.02.45.63.61.84.4-0.81.2-1.35.4-2.2-0.3-0.5-0.30.40.63.93.00.47.45.87.04.71.37.67.92.38.23.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value951751870939908640795782671
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.66.37.98.68.25.67.37.46.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

Net Income Loss Available To Common Stockholders Basic

Net Income Loss Available To Common Stockholders Diluted

Assets

us-gaap:Assets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value872268692186109847888307372468701826969272004705636792367159680486589164272639686306362436584735718856558566535511551664501694995345767447341366210189100719729950994829279910186487918832074797386
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Liabilities

Liabilities And Stockholders Equity

us-gaap:LiabilitiesAndStockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value872268692186109847888307372468701826969272004705636792367159680486589164272639686306362436584735718856558566535511551664501694995345767447341366210189100719729950994829279910186487918832074797386
Percentage of LiabilitiesAndStockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-312007-12-31
Value28977287892777126967261812471824355233902287622559202771961418963182361785317395171041655716252160531565015663145251456314156142451241512359339133583322311629572927282527492632254125062416228820341848
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.233.132.331.831.534.134.733.631.832.029.929.227.927.727.827.227.126.527.828.127.727.626.428.228.228.527.127.624.833.033.032.031.130.930.430.230.432.130.132.331.00.00.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1660-868-1070-813-521-33200581-11322-9-9-1-11-32-14
Percentage of StockholdersEquity-5.7-3.0-3.9-3.0-2.0-1.30.00.00.00.00.0-0.00.00.00.00.0-0.3-0.3-0.1-0.5-1.6-0.8
Percentage of Assets-1.9-1.0-1.2-1.0-0.6-0.50.00.00.00.00.0-0.00.00.00.00.0-0.1-0.1-0.0-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value3859738498384333824238100380103795637786380573862938846386663850337330182617841686163415781524
Percentage of StockholdersEquity133.2133.7138.4141.8145.5153.8155.8161.5166.4171.2213.0233.5245.8262.154.460.966.471.477.682.5
Percentage of Assets44.244.344.645.145.952.554.154.252.954.759.061.968.074.717.918.821.322.10.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-7949-8833-9584-10454-11393-12954-13594-14389-15179-16074-20610-22108-22841-23088-23068-2303215531159858664487338
Percentage of StockholdersEquity-27.4-30.7-34.5-38.8-43.5-52.4-55.8-61.5-66.4-71.3-113.0-133.5-145.8-162.1-185.8-186.446.339.633.829.024.018.3
Percentage of Assets-9.1-10.2-11.1-12.3-13.7-17.9-19.4-20.6-21.1-22.8-31.3-35.4-40.3-46.2-50.4-51.515.212.210.89.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-11-8-8-8-5-6-7-7-7-4-1000-116-1000
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.30.2-0.10.00.00.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.10.1-0.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Assets Current

us-gaap:AssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value948793058458811487458281728670919609891574496780158991421713530142801334414890126561165711635139841329598961295712228796473136772318731842895276727432549256822291593224514871491
Percentage of AssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets10.910.79.89.610.511.410.410.213.312.611.010.123.421.621.122.321.223.821.620.420.624.724.119.225.824.517.416.349.631.331.629.829.128.927.528.225.820.127.019.920.2

Cash And Cash Equivalents At Carrying Value

us-gaap:CashAndCashEquivalentsAtCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-12-312009-09-302009-06-302008-12-312007-12-31
Value1112152816531105143912033292152527121973918175015500535255383647458226332642303253155787308054715891236523622701236820571901188619431840185513217968897769149299558696971470
Percentage of CashAndCashEquivalentsAtCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.31.81.91.31.71.70.50.33.51.71.10.311.08.38.38.75.87.34.54.65.49.410.56.010.911.85.25.319.823.220.419.519.820.519.820.415.310.110.710.40.012.60.00.00.00.0

Short Term Investments

Accounts Receivable Net Current

us-gaap:AccountsReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-03-312010-12-312010-09-302010-06-302009-12-31
Value183618881822181717491769165216301689191517341719185118961885186618801788181018271933186544333939356036193370300026785658464751
Percentage of AccountsReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.12.22.12.12.12.42.42.32.32.72.62.62.72.92.92.93.02.93.13.23.43.38.07.67.17.27.46.726.30.70.70.60.60.7

Inventory Net

us-gaap:InventoryNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1225964801998126110849589981311156699912081021111110391388144312951236113512301085674791676586761819457
Percentage of InventoryNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.41.10.91.21.51.51.41.41.82.21.51.81.51.71.62.22.32.12.12.02.21.91.21.51.31.21.71.84.5

Inventory Finished Goods

Other Assets Current

us-gaap:OtherAssetsCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value28822305173717301814159816761969192917882043190318171580140615371336141512631813189010191063159313691179905125267659870695222354442495863403128
Percentage of OtherAssetsCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.32.72.02.02.20.02.32.82.82.50.02.72.72.42.12.32.12.22.02.93.21.81.92.82.52.31.82.51.51.30.50.70.50.20.40.50.50.50.70.80.50.40.4

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value688694660
Percentage of OtherAssetsCurrent23.930.139.4
Percentage of Assets0.80.80.9
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary tmus:FactoringandEIPSecuritizationArrangement0.00.00.0

us-gaap:TransactionType

tmus:EIPSecuritizationArrangement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value3353443473403273214053943704033573493483713503131541640
Percentage of OtherAssetsCurrent11.614.920.019.718.019.220.620.420.721.219.622.124.824.126.222.112.29.00.0
Percentage of Assets0.40.40.40.40.40.40.60.60.50.60.50.50.50.60.50.50.20.30.0
Percentage of Assets tmus:EIPSecuritizationArrangement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

tmus:FactoringArrangement, us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value353350352351342339299287266236225223227207167163172206204
Percentage of OtherAssetsCurrent12.215.220.320.318.920.215.214.914.912.412.414.116.113.512.511.513.611.412.8
Percentage of Assets0.40.40.40.40.40.50.40.40.40.30.30.30.30.30.30.30.30.30.4
Percentage of Assets tmus:FactoringArrangement us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Property Plant And Equipment Gross

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:PropertyPlantAndEquipmentGross

us-gaap:AssetsLeasedToOthers



Period End2020-03-312019-12-312018-12-312017-12-312016-12-312015-12-312014-12-31
Value1223113911641209262422360
Percentage of PropertyPlantAndEquipmentGross100.0100.0100.0100.0100.0100.00.0
Percentage of Assets1.41.31.61.74.03.60.0
Percentage of Assets us-gaap:AssetsLeasedToOthers0.00.00.00.00.00.00.0

Accumulated Depreciation Depletion And Amortization Property Plant And Equipment

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment

us-gaap:AssetsLeasedToOthers



Period End2020-03-312019-12-31
Value404407
Percentage of AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment100.0100.0
Percentage of Assets0.50.5
Percentage of Assets us-gaap:AssetsLeasedToOthers0.00.0

Property Plant And Equipment Net

us-gaap:PropertyPlantAndEquipmentNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value22149219842209821847214642102023359225022237522308221962157021423212352094320574205702062520000181011691016483162451579815537154271534915370151854177429241974069400740174009385637383659342333063252
Percentage of PropertyPlantAndEquipmentNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets25.425.325.725.825.80.032.232.132.131.031.531.831.931.231.832.032.232.732.031.029.629.128.728.730.130.830.733.633.930.642.141.741.842.142.443.242.443.246.241.144.244.0

us-gaap:PropertyPlantAndEquipmentByType

us-gaap:AssetsLeasedToOthers



Period End2020-03-312019-12-312019-09-30
Value819732543
Percentage of PropertyPlantAndEquipmentNet3.73.32.5
Percentage of Assets0.90.80.6
Percentage of Assets us-gaap:AssetsLeasedToOthers0.00.00.0

Investments In Affiliates Subsidiaries Associates And Joint Ventures

Goodwill

us-gaap:Goodwill



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-12-31
Value193019301930190119011901190119011901168316831683168316831683168316831683168316831683168316831683168316831683168308134
Percentage of Goodwill100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0
Percentage of Assets2.22.22.22.22.32.62.72.72.62.42.52.52.52.62.62.62.72.72.92.93.03.03.13.33.43.43.73.80.085.8

Finite Lived Intangible Assets Net

us-gaap:FiniteLivedIntangibleAssetsNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value911151441571741861982292602912172562963383764314865415946627358058709561040112312041297139079
Percentage of FiniteLivedIntangibleAssetsNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.10.10.20.20.20.00.30.30.40.40.30.40.40.50.60.70.80.91.01.11.31.41.51.72.02.22.42.83.10.8

Deferred Tax Assets Liabilities Net

Other Assets Noncurrent

us-gaap:OtherAssetsNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value202618911799170716611552162314881311115710629128588157686746255824714673513203072881694168015961367948661141141123194184173173126120123140193150
Percentage of OtherAssetsNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets2.32.22.12.02.00.02.22.11.91.60.01.31.31.21.11.01.00.90.70.70.60.60.50.53.13.33.22.72.11.51.01.41.22.01.91.81.91.41.41.61.72.62.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value928988
Percentage of OtherAssetsNoncurrent4.54.75.4
Percentage of Assets0.10.10.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary tmus:FactoringandEIPSecuritizationArrangement0.00.00.0

us-gaap:TransactionType

tmus:EIPSecuritizationArrangement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value9289857471889899931099010610483739842440
Percentage of OtherAssetsNoncurrent4.54.74.74.34.35.46.67.68.012.010.513.013.512.311.716.88.99.40.0
Percentage of Assets0.10.10.10.10.10.10.10.10.10.20.10.20.20.10.10.20.10.10.0
Percentage of Assets tmus:EIPSecuritizationArrangement0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Liabilities Current

us-gaap:LiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value14756125061286913173133271026785729281123571151581038828152859022811987529369952888438264864987768605713161105808551453983189847784741778816779725903802689677797
Percentage of LiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets16.914.414.915.516.014.212.213.317.216.311.913.122.513.712.613.714.915.315.114.515.315.515.613.812.211.612.012.123.38.37.87.68.28.68.48.010.410.18.39.110.8

Debt Current

Long Term Debt Current

Accounts Payable And Accrued Liabilities Current

us-gaap:AccountsPayableAndAccruedLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-312011-03-312010-12-312010-09-302010-06-302009-12-31
Value600367466406726073307676774165006686715785286071622561607152614669857431808474746645679373646057555547924567432443053475609521418426558
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets6.97.87.48.68.80.010.79.39.69.912.18.99.39.110.99.610.911.812.912.811.612.013.011.010.89.69.19.49.634.17.06.65.05.77.6

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value542559
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.90.40.8
Percentage of Assets0.10.00.1
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary tmus:FactoringandEIPSecuritizationArrangement0.00.00.0

us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

tmus:FactoringArrangement, us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-06-302016-03-312015-12-312014-12-31
Value54251005911100251303817444013
Percentage of AccountsPayableAndAccruedLiabilitiesCurrent0.90.40.00.00.00.80.20.10.00.30.20.00.60.20.10.60.00.2
Percentage of Assets0.10.00.00.00.00.10.00.00.00.00.00.00.10.00.00.10.00.0
Percentage of Assets tmus:FactoringArrangement us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Other Accrued Liabilities Current

Accrued Income Taxes Current

Other Liabilities Current

us-gaap:OtherLiabilitiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value2801167318831564112981578736735935341439639539340535537042541041055858963561362139935324319823716630292526292534333432
Percentage of OtherLiabilitiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets3.21.92.21.81.40.01.10.50.50.50.60.60.60.60.60.60.60.70.70.71.01.01.11.11.20.80.70.50.40.20.70.70.30.30.30.30.30.30.40.40.50.4

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value355342149
Percentage of OtherLiabilitiesCurrent12.720.418.9
Percentage of Assets0.40.40.2
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary tmus:FactoringandEIPSecuritizationArrangement0.00.00.0

us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

tmus:FactoringArrangement, us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value35534227529323014917415911818015514512712957641087355
Percentage of OtherLiabilitiesCurrent12.720.414.618.720.418.947.444.333.443.539.136.732.331.916.117.325.417.88.7
Percentage of Assets0.40.40.30.30.30.20.20.20.20.30.20.20.20.20.10.10.20.10.1
Percentage of Assets tmus:FactoringArrangement us-gaap:VariableInterestEntityNotPrimaryBeneficiary0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Liabilities Noncurrent

us-gaap:LiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value4349345626454694464843565374833725537021367713648939543387173380038633383003782136590363513337832871322593221431985299702990329900278382697721915
Percentage of LiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets49.952.552.852.752.451.753.153.151.151.758.257.649.758.659.659.158.058.257.157.557.056.958.058.059.659.960.860.3215.1

Long Term Debt

Long Term Debt Noncurrent

us-gaap:LongTermDebtNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value1095910958109561095410952121241199312065121271212113163132061310521832218252157420505204841644216386162611627316284143691433114345676162760
Percentage of LongTermDebtNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets12.612.612.712.913.216.717.117.316.817.219.419.719.333.134.033.732.532.828.128.728.828.729.527.828.628.714.814.00.0

Deferred Tax Liabilities Noncurrent

Other Liabilities Noncurrent

us-gaap:OtherLiabilitiesNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value95995493691389690396798596893393596797110041026100710381047106779564265461655850567170163263690909191909092807372828181
Percentage of OtherLiabilitiesNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets1.11.11.11.11.10.01.31.41.41.31.31.41.41.51.61.61.61.71.71.41.11.21.11.01.01.31.41.41.40.70.90.90.91.01.01.00.90.90.91.01.11.1

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value81822
Percentage of OtherLiabilitiesNoncurrent0.81.92.3
Percentage of Assets0.00.00.0
Percentage of Assets us-gaap:VariableInterestEntityPrimaryBeneficiary tmus:FactoringandEIPSecuritizationArrangement0.00.00.0

Stockholders Equity

us-gaap:StockholdersEquity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-312007-12-31
Value28977287892777126967261812471824355233902287622559202771961418963182361785317395171041655716252160531565015663145251456314156142451241512359339133583322311629572927282527492632254125062416228820341848
Percentage of StockholdersEquity100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets33.233.132.331.831.534.134.733.631.832.029.929.227.927.727.827.227.126.527.828.127.727.626.428.228.228.527.127.624.833.033.032.031.130.930.430.230.432.130.132.331.00.00.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-1660-868-1070-813-521-33200581-11322-9-9-1-11-32-14
Percentage of StockholdersEquity-5.7-3.0-3.9-3.0-2.0-1.30.00.00.00.00.0-0.00.00.00.00.0-0.3-0.3-0.1-0.5-1.6-0.8
Percentage of Assets-1.9-1.0-1.2-1.0-0.6-0.50.00.00.00.00.0-0.00.00.00.00.0-0.1-0.1-0.0-0.20.00.0
Percentage of Assets us-gaap:AccumulatedOtherComprehensiveIncome0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value3859738498384333824238100380103795637786380573862938846386663850337330182617841686163415781524
Percentage of StockholdersEquity133.2133.7138.4141.8145.5153.8155.8161.5166.4171.2213.0233.5245.8262.154.460.966.471.477.682.5
Percentage of Assets44.244.344.645.145.952.554.154.252.954.759.061.968.074.717.918.821.322.10.00.0
Percentage of Assets us-gaap:AdditionalPaidInCapital0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312013-09-302013-06-302012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-7949-8833-9584-10454-11393-12954-13594-14389-15179-16074-20610-22108-22841-23088-23068-2303215531159858664487338
Percentage of StockholdersEquity-27.4-30.7-34.5-38.8-43.5-52.4-55.8-61.5-66.4-71.3-113.0-133.5-145.8-162.1-185.8-186.446.339.633.829.024.018.3
Percentage of Assets-9.1-10.2-11.1-12.3-13.7-17.9-19.4-20.6-21.1-22.8-31.3-35.4-40.3-46.2-50.4-51.515.212.210.89.00.00.0
Percentage of Assets us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-312015-12-312014-12-312013-12-312012-12-312011-12-312010-12-312009-12-312008-12-312007-12-31
Value-11-8-8-8-5-6-7-7-7-4-1000-116-1000
Percentage of StockholdersEquity-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.30.2-0.10.00.00.0
Percentage of Assets-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.0-0.00.00.00.0-0.10.1-0.00.00.00.0
Percentage of Assets us-gaap:TreasuryStock0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Common Stock Value

us-gaap:CommonStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.037000.037000.036000.036000.036000.036000.036000.036000.036000.036000.035000.035000.035000.0
Percentage of CommonStockValue0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.0

Retained Earnings Accumulated Deficit

us-gaap:RetainedEarningsAccumulatedDeficit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312018-01-012017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value-7949-8833-9584-10454-11393-12301-12954-13594-14389-15179-15861-16074-18781-19331-19912-20610-21000-21366-21591-22108-22405-22543-22904-22841-22942-22848-23239-23088-23068-230321572155315211329118011591068998914858844767664
Percentage of RetainedEarningsAccumulatedDeficit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-9.1-10.2-11.1-12.3-13.70.0-17.9-19.4-20.6-21.10.0-22.8-27.7-28.8-29.3-31.3-32.7-33.4-34.2-35.4-38.3-39.4-40.5-40.3-41.6-44.2-46.3-46.2-50.4-51.511.515.215.113.712.412.211.511.010.610.810.210.39.0

us-gaap:AdjustmentsForNewAccountingPronouncements

us-gaap:AccountingStandardsUpdate201613



Period End2020-01-01
Value-67
Percentage of RetainedEarningsAccumulatedDeficit0.0
Percentage of Assets0.0
Percentage of Assets us-gaap:AccountingStandardsUpdate2016130.0

Treasury Stock Value

us-gaap:TreasuryStockValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value118885677744441111000000000001311109866541100
Percentage of TreasuryStockValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0
Percentage of Assets0.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.10.10.10.10.10.10.10.10.10.00.00.00.0

Accumulated Other Comprehensive Income Loss Net Of Tax

us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value-1660-868-1070-813-521-332005843211-1-4-1-1111100322-7-9-4-8-9-9-12-72-1-10-9-11
Percentage of AccumulatedOtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of Assets-1.9-1.0-1.2-1.0-0.6-0.50.00.00.00.00.00.00.00.00.0-0.0-0.0-0.0-0.00.00.00.00.00.00.00.00.00.0-0.1-0.1-0.0-0.1-0.1-0.1-0.1-0.10.0-0.0-0.1-0.1-0.2

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value1617153717482147139295491412617702058236218291713160217401768102522331531116148913551062759223136138341225313
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.612.915.819.612.68.38.411.97.419.123.617.917.815.718.819.211.927.119.514.26.316.614.411.04.82.711.633.523.235.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-1580-887-657-1615-966231-42-306-462-926-1455-7133-1550-1294-1859-667-1860-4322-1209-1337-2692-1806-1165-965-3369-182-168-867-185-222
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.2-7.5-5.9-14.7-8.72.0-0.4-2.9-4.4-8.6-14.5-69.8-16.1-12.7-20.1-7.2-21.6-52.4-15.4-16.3-34.6-22.1-15.9-14.0-72.1-3.6-14.1-85.0-19.1-24.8

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-453-775-543-866-190-311-758-32671000-652-349-20161838-160-67790-1004038-331-214-80-212810-2143479-11555638-54-5
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.1-6.5-4.9-7.9-1.7-2.7-7.0-30.99.6-6.1-3.5-19.719.1-1.6-0.78.6-1.249.0-4.2-2.6-1.0-0.338.2-3.174.4-0.246.562.5-5.6-0.6

Net Cash Provided By Used In Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value1617153717482147139295491412617702058236218291713160217401768102522331531116148913551062759223136138341225313
Percentage of NetCashProvidedByUsedInOperatingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax14.612.915.819.612.68.38.411.97.419.123.617.917.815.718.819.211.927.119.514.26.316.614.411.04.82.711.633.523.235.0

Net Income Loss

us-gaap:NetIncomeLoss



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value9517518709399086407957826712707550581698390366225479297138361-63101-94391-151-20-36-1619311921482191698456137779227326
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.66.37.98.68.25.67.37.46.425.25.55.77.33.84.02.45.63.61.84.4-0.81.2-1.35.4-2.2-0.3-0.5-0.30.40.63.93.00.47.45.87.04.71.37.67.92.38.23.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value951751870939908640795782671
Percentage of NetIncomeLoss100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax8.66.37.98.68.25.67.37.46.4
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:RetainedEarnings0.00.00.00.00.00.00.00.00.0

Depreciation Depletion And Amortization

us-gaap:DepreciationDepletionAndAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value17181776165515851600164016371634157514851416151915641548156815751552136911571075108710901138112910559878881731631531521391341281131091079891
Percentage of DepreciationDepletionAndAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Increase Decrease In Inventories

us-gaap:IncreaseDecreaseInInventories



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value51147836-162265244115-125-33816-113185-44305-301-38011522915-87145-412124-69-29-11
Percentage of IncreaseDecreaseInInventories100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Net Cash Provided By Used In Investing Activities

us-gaap:NetCashProvidedByUsedInInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-1580-887-657-1615-966231-42-306-462-926-1455-7133-1550-1294-1859-667-1860-4322-1209-1337-2692-1806-1165-965-3369-182-168-867-185-222
Percentage of NetCashProvidedByUsedInInvestingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-14.2-7.5-5.9-14.7-8.72.0-0.4-2.9-4.4-8.6-14.5-69.8-16.1-12.7-20.1-7.2-21.6-52.4-15.4-16.3-34.6-22.1-15.9-14.0-72.1-3.6-14.1-85.0-19.1-24.8

Payments To Acquire Property Plant And Equipment

us-gaap:PaymentsToAcquirePropertyPlantAndEquipment



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value17531157151417891931118413621629136692114411347152885911591349133514311120119198212991131947154144187232139181
Percentage of PaymentsToAcquirePropertyPlantAndEquipment100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Payments To Acquire Investments

Net Cash Provided By Used In Financing Activities

us-gaap:NetCashProvidedByUsedInFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-453-775-543-866-190-311-758-32671000-652-349-20161838-160-67790-1004038-331-214-80-212810-2143479-11555638-54-5
Percentage of NetCashProvidedByUsedInFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0
Percentage of RevenueFromContractWithCustomerExcludingAssessedTax-4.1-6.5-4.9-7.9-1.7-2.7-7.0-30.99.6-6.1-3.5-19.719.1-1.6-0.78.6-1.249.0-4.2-2.6-1.0-0.338.2-3.174.4-0.246.562.5-5.6-0.6

Proceeds From Issuance Of Long Term Debt

Repayments Of Long Term Debt

Payments Of Dividends

Payments Of Dividends

Payments For Repurchase Of Common Stock

Repayments Of Long Term Debt

Debt Instrument Interest Rate Stated Percentage

Effective Income Tax Rate Continuing Operations

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

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

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

Share Based Compensation

us-gaap:ShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value1381291261301101001151129785827267645960524842565591011111112
Percentage of ShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Deferred Tax Liabilities

Deferred Tax Assets Net

Unrecognized Tax Benefits

Deferred Tax Assets Valuation Allowance

Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions

Operating Lease Right Of Use Asset

us-gaap:OperatingLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-31
Value10956109331091410439950992510
Percentage of OperatingLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0

Cash And Cash Equivalents Period Increase Decrease

Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312016-12-31
Value111215281653110514391203329215252712195500
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

Proceeds From Sale Of Short Term Investments

tmus:AdjustmentsToAdditionalPaidInCapitalExecutivePutOption



Period End2020-03-31
Value1000000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalExecutivePutOption100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-31
Value1000000.0
Percentage of AdjustmentsToAdditionalPaidInCapitalExecutivePutOption100.0

us-gaap:BusinessAcquisition, us-gaap:PlanName, us-gaap:StatementClassOfStock, us-gaap:SubsequentEventType

tmus:BusinessCombinationEquityAwardsAssumedInAcquisition

tmus:SprintCorporation, tmus:LongTermStockIncentiveProgram, us-gaap:CommonStock, us-gaap:SubsequentEvent



Period End2020-04-22
Value25
Percentage of BusinessCombinationEquityAwardsAssumedInAcquisition100.0

us-gaap:BusinessAcquisition, us-gaap:StatementClassOfStock

tmus:BusinessCombinationNumberOfSharesOfAcquireeStockExchangedForEachShareOfAcquirerStock

tmus:SprintCorporation, us-gaap:CommonStock



Period End2020-02-20
Value11.0
Percentage of BusinessCombinationNumberOfSharesOfAcquireeStockExchangedForEachShareOfAcquirerStock100.0

us-gaap:BusinessAcquisition, us-gaap:StatementClassOfStock, dei:LegalEntity

tmus:SprintCorporation, us-gaap:CommonStock, tmus:SoftBankGroupCorp.



Period End2020-02-20
Value11.31
Percentage of BusinessCombinationNumberOfSharesOfAcquireeStockExchangedForEachShareOfAcquirerStock102.8

us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

tmus:BusinessCombinationRequiredFinancingFeesByAcquirerToAffiliateUponConsummation

tmus:DeutscheTelekomAG, tmus:SprintCorporation, us-gaap:SubsequentEvent



Period End2020-04-01
Value13
Percentage of BusinessCombinationRequiredFinancingFeesByAcquirerToAffiliateUponConsummation100.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

tmus:CashFlowsBetweenTransferorandTransfereenetcashproceedsduringtheperiod

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-31
Value-5
Percentage of CashFlowsBetweenTransferorandTransfereenetcashproceedsduringtheperiod100.0

tmus:ChangeInCapitalExpendituresIncurredButNotYetPaid



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value30129460113333-737-78386364-771141-8325-59279101
Percentage of ChangeInCapitalExpendituresIncurredButNotYetPaid100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:FinanceLeaseExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value165167137133
Percentage of FinanceLeaseExpense100.0100.0100.0100.0

tmus:IncreaseDecreaseinOperatingLeaseLiability



Period End2020-03-312019-09-302019-06-302019-03-312018-03-31
Value-725-549-521-5220
Percentage of IncreaseDecreaseinOperatingLeaseLiability100.0100.0100.0100.00.0

tmus:IncreaseDecreaseinOperatingLeaseRightofUseAsset



Period End2020-03-312019-09-302019-06-302019-03-312018-03-31
Value-527-491-469-4350
Percentage of IncreaseDecreaseinOperatingLeaseRightofUseAsset100.0100.0100.0100.00.0

us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:SubsequentEventType, tmus:LicenseAuctionType

tmus:NumberofLicensesAcquired

us-gaap:LicensingAgreements, us-gaap:SubsequentEvent, tmus:Auction3739GHzAnd47GHz



Period End2020-04-08
Value2384.0
Percentage of NumberofLicensesAcquired100.0

us-gaap:BusinessAcquisition

tmus:PaymentsOfMergerRelatedCostsOperatingActivities

tmus:SprintCorporation



Period End2020-03-312019-03-31
Value16134
Percentage of PaymentsOfMergerRelatedCostsOperatingActivities100.0100.0

tmus:ReceivableWithImputedInterestDiscountIncreaseDecrease



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value545236539553495389427348
Percentage of ReceivableWithImputedInterestDiscountIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value54523653955349538942734883205528-37-442-5
Percentage of ReceivableWithImputedInterestDiscountIncreaseDecrease100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.0

us-gaap:StatementEquityComponents

tmus:TransferRSUtoNQDCPlan

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value3003-1-1003
Percentage of TransferRSUtoNQDCPlan100.00.00.0100.0100.0100.00.00.0100.0

us-gaap:TreasuryStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-300-31100-3
Percentage of TransferRSUtoNQDCPlan-100.00.00.0-100.0-100.0-100.00.00.0-100.0

us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value14148441005751074
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value14148441005751074
Percentage of AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value152113140143121112127126108
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value152113140143121112127126108
Percentage of AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecurities

us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount

us-gaap:StockCompensationPlan



Period End2020-03-312019-09-302019-06-302019-03-312018-09-302018-06-302018-03-312017-09-302017-06-302017-03-312016-09-302016-06-302016-03-312015-09-302015-06-302015-03-312014-09-30
Value1000000000000012521
Percentage of AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:SubsequentEventType

us-gaap:BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued

tmus:SprintCorporation, us-gaap:SubsequentEvent



Period End2020-04-01
Value373
Percentage of BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued100.0

us-gaap:BusinessAcquisition

us-gaap:BusinessCombinationAcquisitionRelatedCosts

tmus:SprintCorporation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-30
Value1431261592221131025341
Percentage of BusinessCombinationAcquisitionRelatedCosts100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CapitalizedContractCostAmortization



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value20518916213711696795735
Percentage of CapitalizedContractCostAmortization100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-416-125548-334236874114-23121308
Percentage of CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-31
Value1944
Percentage of CashFlowsBetweenTransfereeAndTransferorProceedsFromCollectionsReinvestedInRevolvingPeriodTransfers100.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-31
Value1939
Percentage of CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers100.0

us-gaap:ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value16131647173416161512137612631205112810839729921016
Percentage of ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityRevenueRecognized



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value528139435601282331528
Percentage of ContractWithCustomerLiabilityRevenueRecognized100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-67000653000224
Percentage of CumulativeEffectOnRetainedEarningsNetOfTax1100.00.00.00.0100.00.00.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:RetainedEarnings



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-67000653008224
Percentage of CumulativeEffectOnRetainedEarningsNetOfTax1100.00.00.00.0100.00.00.00.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType, us-gaap:VariableRate

us-gaap:DebtInstrumentBasisSpreadOnVariableRate1

tmus:SprintCorporation, tmus:SecuredBridgeLoanFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-04-01
Value0.0125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

tmus:SprintCorporation, tmus:SecuredTermLoanFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-04-01
Value0.03
Percentage of DebtInstrumentBasisSpreadOnVariableRate1240.0

us-gaap:Range, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType, us-gaap:VariableRate

srt:Maximum, tmus:SprintCorporation, tmus:SecuredRevolvingCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-04-01
Value0.0125
Percentage of DebtInstrumentBasisSpreadOnVariableRate1100.0

srt:Minimum, tmus:SprintCorporation, tmus:SecuredRevolvingCreditFacility, us-gaap:SubsequentEvent, us-gaap:LondonInterbankOfferedRateLIBOR



Period End2020-04-01
Value0.01
Percentage of DebtInstrumentBasisSpreadOnVariableRate180.0

us-gaap:DeferredIncomeTaxExpenseBenefit



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value310242294267288218284272206-1999347345-97291219140264174134-2-50111432481440
Percentage of DeferredIncomeTaxExpenseBenefit100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value20212020
Percentage of FinanceLeaseInterestExpense100.0100.0100.0100.0

us-gaap:FinanceLeaseInterestPaymentOnLiability



Period End2020-03-312019-09-302019-06-302019-03-31
Value20202120
Percentage of FinanceLeaseInterestPaymentOnLiability100.0100.0100.0100.0

us-gaap:FinanceLeaseRightOfUseAssetAmortization



Period End2020-03-312019-09-302019-06-302019-03-31
Value145146117113
Percentage of FinanceLeaseRightOfUseAssetAmortization100.0100.0100.0100.0

us-gaap:FinancingReceivableAllowanceForCreditLossesWriteOffs



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value959078719387817981899298114
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:AccountsReceivablesGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value34262018192621271421243639
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs35.828.925.625.420.429.925.934.217.323.626.136.734.2

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value616458537461605267686862757664568185897287
Percentage of FinancingReceivableAllowanceForCreditLossesWriteOffs64.271.174.474.679.670.174.165.882.776.473.963.365.80.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableSignificantSales



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value36404342423948475157414441
Percentage of FinancingReceivableSignificantSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value364043424239484751574144414342721963000
Percentage of FinancingReceivableSignificantSales100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.00.00.00.00.00.0

us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-302010-03-312009-09-302009-06-30
Value125796511951240120383811301068881714906934607606598372751481238363-104200-211677-25365312782432810713489126132378744
Percentage of IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-405356-3954313505-265-79-10281686-1256-651367-731-345-492657582-153-39315-392814384
Percentage of IncreaseDecreaseInAccountsPayableAndAccruedLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInAccountsReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312011-03-312010-09-302010-03-312009-09-30
Value74810167458051143137012381136873278119-216814115510520210348-62170-1-11-6
Percentage of IncreaseDecreaseInAccountsReceivable100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInFinanceReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-695377815025075533528622237415435313459-104-343-109-1439-229350229
Percentage of IncreaseDecreaseInFinanceReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value-6-1441188387-128193248-132245184135111649856-185159184-35-91-11-10-8-403
Percentage of IncreaseDecreaseInOtherOperatingAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncreaseDecreaseInOtherOperatingLiabilities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value79842-27121-4839-10545-14960-18945-168112-742882092-18292-62001-26
Percentage of IncreaseDecreaseInOtherOperatingLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-302011-03-312010-09-302010-06-30
Value708570647077909770690009000110125422
Percentage of IncrementalCommonSharesAttributableToShareBasedPaymentArrangements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.00.00.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestCostsCapitalized



Period End2020-03-312019-03-31
Value112118
Percentage of InterestCostsCapitalized100.0100.0

us-gaap:InterestExpenseRelatedParty



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value999810010110910412412816616216713110064769379134121926492838518183225178165151
Percentage of InterestExpenseRelatedParty100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestIncomeOther



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-30
Value1275482566226763626868851091141121049783755040352018
Percentage of InterestIncomeOther100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:InterestPaidNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-31
Value341216327245340222366559378463343727495389478399415329348294327359369353286
Percentage of InterestPaidNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:LeaseCost



Period End2020-03-312019-09-302019-06-302019-03-31
Value911886829800
Percentage of LeaseCost100.0100.0100.0100.0

us-gaap:NoncashOrPartNoncashAcquisitionDebtAssumed1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-31
Value02547550250005423711228800015000574430
Percentage of NoncashOrPartNoncashAcquisitionDebtAssumed10.0100.0100.0100.0100.00.00.0100.0100.0100.0100.0100.0100.00.00.00.0100.00.00.0100.0100.00.0

us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-31
Value3093942981671471982292803043562622702434132345265314638540443061330
Percentage of NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.00.0100.0100.00.0

us-gaap:NoncashOrPartNoncashAcquisitionInventoryAcquired1



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-30
Value5978656757807490821071652731971024-186105131198-32
Percentage of NoncashOrPartNoncashAcquisitionInventoryAcquired1100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:OperatingLeaseExpense



Period End2020-03-312019-09-302019-06-302019-03-31
Value684657634602
Percentage of OperatingLeaseExpense100.0100.0100.0100.0

us-gaap:OperatingLeasePayments



Period End2020-03-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value87570370368800
Percentage of OperatingLeasePayments100.0100.0100.0100.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-792202-257-292-189-332000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value-276-44388-102-66-115000
Percentage of OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:OtherComprehensiveIncomeLossNetOfTax



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-09-302013-06-302013-03-312012-09-302012-06-302012-03-312011-09-302011-06-30
Value-792202-257-292-189-33203-34111023-30-200010-30-382300-5-9
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.00.0100.00.00.00.0100.00.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AccumulatedOtherComprehensiveIncome



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-06-302018-03-31
Value-792202-257-292-1893-3
Percentage of OtherComprehensiveIncomeLossNetOfTax100.0100.0100.0100.0100.0100.0100.0

us-gaap:OtherOperatingActivitiesCashFlowStatement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value70728920761752-9248875-85-1761181-121989-1
Percentage of OtherOperatingActivitiesCashFlowStatement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:PaymentsForProceedsFromHedgeInvestingActivities



Period End2020-03-312019-12-312019-03-31
Value580-6320
Percentage of PaymentsForProceedsFromHedgeInvestingActivities100.0100.00.0

us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:InterestRateContract, us-gaap:SubsequentEvent



Period End2020-04-06
Value1100
Percentage of PaymentsForProceedsFromHedgeInvestingActivities0.0

us-gaap:PaymentsForProceedsFromOtherInvestingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-31
Value1612-1079-4-337-3-1-5811-5-46-103-5-2142717-15819
Percentage of PaymentsForProceedsFromOtherInvestingActivities100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:PaymentsOfFinancingCosts

tmus:SprintCorporation, tmus:SecuredandUnsecuredDebtFinancing, us-gaap:SubsequentEvent



Period End2020-04-01
Value355
Percentage of PaymentsOfFinancingCosts100.0

us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302013-12-312013-09-30
Value1414844100575107465639269334656270281000
Percentage of PaymentsRelatedToTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.00.00.0

us-gaap:PaymentsToAcquireIntangibleAssets



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value9910413665185262228518155791144247052245594-3941481696510230221104
Percentage of PaymentsToAcquireIntangibleAssets100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0

us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, tmus:LicenseAuctionType

us-gaap:LicensingAgreements, tmus:Auction3739GHzAnd47GHz



Period End2020-03-31
Value873
Percentage of PaymentsToAcquireIntangibleAssets881.8

us-gaap:IndefiniteLivedIntangibleAssetsByMajorClass, us-gaap:SubsequentEventType, tmus:LicenseAuctionType

us-gaap:LicensingAgreements, us-gaap:SubsequentEvent, tmus:Auction3739GHzAnd47GHz



Period End2020-04-08
Value698
Percentage of PaymentsToAcquireIntangibleAssets0.0

us-gaap:ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value86898090083911571450133813231295119311108821134
Percentage of ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:LongtermDebtType, us-gaap:RelatedPartyTransactionsByRelatedParty, us-gaap:SubsequentEventType

us-gaap:ProceedsFromIssuanceOfDebt

tmus:DeutscheTelekomAG, tmus:SprintCorporation, us-gaap:SeniorNotes, srt:AffiliatedEntity, us-gaap:SubsequentEvent



Period End2020-04-01
Value4000
Percentage of ProceedsFromIssuanceOfDebt100.0

us-gaap:ProceedsFromPaymentsForOtherFinancingActivities



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-03-312012-03-312011-03-31
Value-5-4-4-5-4-46-6-3-28-27-5-319-298811411261-1719-3-2-6-9-17
Percentage of ProceedsFromPaymentsForOtherFinancingActivities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProceedsFromShortTermDebt



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-30
Value005758808852151810207021700105518550000
Percentage of ProceedsFromShortTermDebt0.00.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.00.00.00.00.0

us-gaap:ProvisionForDoubtfulAccounts



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312011-03-312010-09-302010-03-312009-09-30
Value11389747173888075549012382931191181191211631721081040000
Percentage of ProvisionForDoubtfulAccounts100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProvisionForLoanLeaseAndOtherLosses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value1138974707488817454901238293
Percentage of ProvisionForLoanLeaseAndOtherLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:AccountsReceivablesGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-31
Value4226201615232121421271937
Percentage of ProvisionForLoanLeaseAndOtherLosses37.229.227.022.920.326.125.928.47.423.322.023.239.8

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value7163545459656053506996635665596462961147877
Percentage of ProvisionForLoanLeaseAndOtherLosses62.870.873.077.179.773.974.171.692.676.778.076.860.20.00.00.00.00.00.00.00.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

us-gaap:ReceivableWithImputedInterestEffectiveYieldInterestRate

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-03-31
Value0.088-0.0040000000000000036-0.0040000000000000036-0.00200000000000000180.098-0.0019999999999999880.0009999999999999870.00200000000000000180.099-0.00100000000000000090.00.00300000000000000270.094-0.0020000000000000018-0.00100000000000000090.00100000000000000090.0920.095
Percentage of ReceivableWithImputedInterestEffectiveYieldInterestRate100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:CounterpartyName, us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:RepaymentsOfDebt

tmus:DeutscheTelekomAG, tmus:SprintCorporation, tmus:SecuredTermLoanFacility, us-gaap:SubsequentEvent



Period End2020-04-01
Value4000
Percentage of RepaymentsOfDebt100.0

us-gaap:RepaymentsOfLongTermCapitalLeaseObligations



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312013-03-312012-03-312011-03-312010-09-302010-03-312009-09-30
Value282248235229861921811551721361411199072544336331365212101
Percentage of RepaymentsOfLongTermCapitalLeaseObligations100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RepaymentsOfLongTermLinesOfCredit



Period End2020-03-312019-03-31
Value0885
Percentage of RepaymentsOfLongTermLinesOfCredit0.0100.0

us-gaap:RepaymentsOfShortTermDebt



Period End2020-03-312019-12-312019-09-302019-03-312018-12-312018-09-302018-06-302017-12-312017-09-302017-06-302016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-03-312013-06-302013-03-31
Value25475300054246044292001500131518563-9628322600
Percentage of RepaymentsOfShortTermDebt100.0100.0100.00.0100.0100.00.0100.0100.0100.00.00.0100.00.0100.0100.0100.0100.0100.0100.0100.00.00.0

us-gaap:RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value17898395368180434133176142
Percentage of RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability



Period End2020-03-312019-09-302019-06-302019-03-312018-03-31
Value55598914006940
Percentage of RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability100.0100.0100.0100.00.0

us-gaap:SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-31
Value-25-39-28-28-35-30-48-27-52-57-67-80-95-71-59-46-52-65-26-48-65
Percentage of SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-03-31
Value-25-35
Percentage of SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleGainLossOnSale100.0100.0

us-gaap:StatementEquityComponents

us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100010001
Percentage of SharesPaidForTaxWithholdingForShareBasedCompensation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100010001
Percentage of StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans100.00.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value410042003
Percentage of StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised

us-gaap:CommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value49193.014329.019619.019261.031874.013451.036973.059106.078435.0
Percentage of StockIssuedDuringPeriodSharesStockOptionsExercised100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value83055069048055
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.00.0100.00.0100.00.0100.00.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value83055069048055
Percentage of StockIssuedDuringPeriodValueEmployeeStockPurchasePlan100.00.0100.00.0100.00.0100.00.0100.0

us-gaap:StockIssuedDuringPeriodValueStockOptionsExercised



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100010012
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.00.00.00.0100.00.00.0100.0100.0

us-gaap:StatementEquityComponents

us-gaap:AdditionalPaidInCapital



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value100010012
Percentage of StockIssuedDuringPeriodValueStockOptionsExercised100.00.00.00.0100.00.00.0100.0100.0

us-gaap:VariableLeaseCost



Period End2020-03-312019-09-302019-06-302019-03-31
Value62625865
Percentage of VariableLeaseCost100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument

tmus:BusinessCombinationRequiredFeesByAcquirerAccruedAmount

tmus:SprintCorporation, tmus:SecuredandUnsecuredDebtFinancing



Period End2020-03-31
Value30
Percentage of BusinessCombinationRequiredFeesByAcquirerAccruedAmount100.0

us-gaap:CounterpartyName, us-gaap:BusinessAcquisition

tmus:DeutscheTelekomAG, tmus:SprintCorporation



Period End2020-03-31
Value0.0
Percentage of BusinessCombinationRequiredFeesByAcquirerAccruedAmount0.0

tmus:FinancingReceivableAllowanceForCreditLossAndImputedDiscountCurrent



Period End2020-03-312019-12-31
Value386333
Percentage of FinancingReceivableAllowanceForCreditLossAndImputedDiscountCurrent100.0100.0

tmus:FinancingReceivableAllowanceForCreditLossAndImputedDiscountNoncurrent



Period End2020-03-312019-12-31
Value8366
Percentage of FinancingReceivableAllowanceForCreditLossAndImputedDiscountNoncurrent100.0100.0

us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment

tmus:FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value375
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear100.0

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value234
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear62.4

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value4
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear1.1

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value6
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear1.6

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value1000000.0
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear0.3

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value3
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear0.8

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value2
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear0.5

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value7
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear1.9

us-gaap:InternalCreditAssessment

us-gaap:Prime



Period End2020-03-31
Value382
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear101.9

us-gaap:Subprime



Period End2020-03-31
Value250
Percentage of FinancingReceivableOriginatedMoreThanTwoYearsBeforeCurrentFiscalYear66.7

tmus:ReceivableWithImputedInterestDiscountAndAllowancesPercentageOfGrossAccountsReceivable



Period End2020-03-312019-12-31
Value0.0870.07
Percentage of ReceivableWithImputedInterestDiscountAndAllowancesPercentageOfGrossAccountsReceivable100.0100.0

us-gaap:TransactionType

tmus:RevolvingReceivablesFacilityMaximumBorrowingCapacity

tmus:EIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-312017-12-312017-08-312016-09-302016-06-302015-12-31
Value1300130013001300120013001300800
Percentage of RevolvingReceivablesFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:TransactionType, us-gaap:VariableInterestEntitiesByClassificationOfEntity

tmus:RevolvingReceivablesFacilityOutstandingBorrowings

tmus:FactoringArrangement, us-gaap:VariableInterestEntityNotPrimaryBeneficiary



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302015-12-31
Value895924950950891774830818802880899879752907750750750
Percentage of RevolvingReceivablesFacilityOutstandingBorrowings100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

tmus:UnamortizedImputedDiscountandAllowanceforCreditLosses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312015-09-302015-06-302014-12-31
Value538460456501508516459454457482449417404418449422441448
Percentage of UnamortizedImputedDiscountandAllowanceforCreditLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:AccountsReceivablesGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-312014-12-31
Value69616161636770707686868310010211683
Percentage of UnamortizedImputedDiscountandAllowanceforCreditLosses12.813.313.412.212.413.015.315.416.617.819.219.924.824.425.818.5

tmus:EquipmentInstallmentPlanReceivable



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-312012-12-31
Value469399395440445449389384381396363334304316287314323333422441433448336125
Percentage of UnamortizedImputedDiscountandAllowanceforCreditLosses87.286.786.687.887.687.084.784.683.482.280.880.175.275.60.00.00.074.2100.0100.00.0100.00.00.0

us-gaap:AccountsPayableRelatedPartiesCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302016-12-31
Value228187252198242200226190291182288155125
Percentage of AccountsPayableRelatedPartiesCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AdditionalPaidInCapitalCommonStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value3859738498384333824238100380103795637786380573862939058389463887738846388533876338700386663865838595385533850337466374113739537330354813538929197
Percentage of AdditionalPaidInCapitalCommonStock100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-312008-12-31
Value69616161636770707686868310010211112511611610191888346547342038133032200000000222224
Percentage of AllowanceForDoubtfulAccountsReceivableCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, dei:LegalEntity

us-gaap:BusinessAcquisitionPercentageOfVotingInterestsAcquired

tmus:SprintCorporation, tmus:DeutscheTelekomAG



Period End2020-03-312019-12-312018-12-31
Value0.4360.4150.417
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired100.0100.0100.0

tmus:SprintCorporation, tmus:SoftBankGroupCorp.



Period End2020-03-312019-12-312018-12-31
Value0.2470.2720.274
Percentage of BusinessAcquisitionPercentageOfVotingInterestsAcquired56.765.565.7

us-gaap:CapitalizedContractCostNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value887906831765719644
Percentage of CapitalizedContractCostNet100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value5963554244515269104140
Percentage of ContractWithCustomerAssetNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerAssetNetCurrent



Period End2020-03-312019-12-312019-09-302018-12-31
Value45504451
Percentage of ContractWithCustomerAssetNetCurrent100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiability



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value534560550571615645649677718718
Percentage of ContractWithCustomerLiability100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ContractWithCustomerLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-01-012017-12-31
Value619631608620665698696722783779
Percentage of ContractWithCustomerLiabilityCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DeferredIncomeTaxLiabilitiesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-01-012017-12-31
Value56185607529650904925470344724370408736103537
Percentage of DeferredIncomeTaxLiabilitiesNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value254525842577
Percentage of DerecognizedAssetsSecuritizedOrAssetbackedFinancingArrangementAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding100.0100.0100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:DerivativeCollateralRightToReclaimCash

us-gaap:InterestRateContract, us-gaap:SubsequentEvent



Period End2020-04-06
Value1200
Percentage of DerivativeCollateralRightToReclaimCash100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:SubsequentEventType

us-gaap:DerivativeLiabilities

us-gaap:InterestRateContract, us-gaap:SubsequentEvent



Period End2020-04-06
Value2300
Percentage of DerivativeLiabilities100.0

us-gaap:DerivativeInstrumentRisk, us-gaap:DerivativeInstrumentsGainLossByHedgingRelationship

us-gaap:DerivativeLiabilitiesCurrent

us-gaap:InterestRateContract, us-gaap:CashFlowHedging



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value2300120014001100703-447
Percentage of DerivativeLiabilitiesCurrent100.0100.0100.0100.0100.0100.0

us-gaap:DueFromAffiliateCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value26202018161112111322243237404639373632528576828760411933682
Percentage of DueFromAffiliateCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DueToAffiliateCurrent



Period End2020-03-312019-12-312017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value200002561253132032531351961012162313152363091993052261619
Percentage of DueToAffiliateCurrent100.00.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:DueToAffiliateNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value11987139861398613985139851458214581145811458614586145861408696005600560056005600560056005600560056005600560056005600112001120013655
Percentage of DueToAffiliateNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinanceLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value91895710139639110
Percentage of FinanceLeaseLiabilityCurrent100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value127613461440131412240
Percentage of FinanceLeaseLiabilityNoncurrent100.0100.0100.0100.0100.00.0

us-gaap:FinanceLeaseRightOfUseAsset



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-31
Value2749271528552589233922710
Percentage of FinanceLeaseRightOfUseAsset100.0100.0100.0100.0100.0100.00.0

us-gaap:FinancingReceivableAllowanceForCreditLosses



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value201100101105104119116116114132130103102121133137129148137112116
Percentage of FinancingReceivableAllowanceForCreditLosses100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedInCurrentFiscalYear

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value504
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.0

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value519
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear103.0

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value2
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.4

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value4
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.8

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value0.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value0.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value0.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value0.0
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear0.0

us-gaap:InternalCreditAssessment

us-gaap:Prime



Period End2020-03-31
Value506
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear100.4

us-gaap:Subprime



Period End2020-03-31
Value523
Percentage of FinancingReceivableOriginatedInCurrentFiscalYear103.8

us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment

us-gaap:FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value1168
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear100.0

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value1082
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear92.6

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value10
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.9

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value23
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear2.0

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value5
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.4

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value11
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.9

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value4
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.3

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value10
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear0.9

us-gaap:InternalCreditAssessment

us-gaap:Prime



Period End2020-03-31
Value1187
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear101.6

us-gaap:Subprime



Period End2020-03-31
Value1126
Percentage of FinancingReceivableOriginatedInFiscalYearBeforeLatestFiscalYear96.4

us-gaap:GuaranteeObligationsCurrentCarryingValue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312017-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-312013-12-312013-09-302012-12-31
Value596265717673105140138141163221265286191900
Percentage of GuaranteeObligationsCurrentCarryingValue100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:IndefiniteLivedLicenseAgreements



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value364713646536442364303561835559355533553235504353663500735060271502701426590255362549523955236462427224062219552168921828173831812218414184152564256225622561254125392538253825372522249024712470
Percentage of IndefiniteLivedLicenseAgreements100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument

us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity

tmus:SprintCorporation, tmus:SecuredTermLoanFacility



Period End2020-04-012019-09-072019-09-062018-12-312018-05-152018-04-29
Value400040004000700070007000
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

tmus:SprintCorporation, tmus:SecuredDebtFinancing, us-gaap:SubsequentEvent



Period End2020-04-01
Value27000
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity675.0

tmus:SprintCorporation, tmus:SecuredTermLoanFacility, us-gaap:SubsequentEvent



Period End2020-04-012018-04-29
Value40007000
Percentage of LineOfCreditFacilityMaximumBorrowingCapacity100.0100.0

us-gaap:DebtInstrument, us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:LoansPayableFairValueDisclosure

tmus:SecuredTermLoan4.0B, us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value40004000400040004000400040004000400040004000400040000
Percentage of LoansPayableFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

tmus:SecuredTermLoan4.0B, us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-31
Value40004000400040004000397639973973400040204020400040020
Percentage of LoansPayableFairValueDisclosure100.0100.0100.0100.0100.099.499.999.3100.0100.5100.5100.0100.00.0

us-gaap:NotesAndLoansReceivableNetCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value24062600242524462466253823662308228122902136206018801930166918312149237833973503325930621471
Percentage of NotesAndLoansReceivableNetCurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:NotesAndLoansReceivableNetNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312013-12-31
Value13671583146916041662154712231222123412741100110297598483983190484713741611158316281075
Percentage of NotesAndLoansReceivableNetNoncurrent100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType

us-gaap:NotesPayableFairValueDisclosure

us-gaap:FairValueInputsLevel1, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value10959109581095610954109521095010949109471340211910
Percentage of NotesPayableFairValueDisclosure100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FairValueInputsLevel1, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SeniorNotes



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-31
Value11325114791150611485113541094511168111591373212540
Percentage of NotesPayableFairValueDisclosure103.3104.8105.0104.8103.7100.0102.0101.9102.5105.3

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis, us-gaap:LongtermDebtType, us-gaap:RelatedPartyTransactionsByRelatedParty

us-gaap:FairValueInputsLevel2, us-gaap:CarryingReportedAmountFairValueDisclosure, us-gaap:SeniorNotes, srt:AffiliatedEntity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value99879986998699859985998499837486
Percentage of NotesPayableFairValueDisclosure91.191.191.191.291.291.291.262.9

us-gaap:FairValueInputsLevel2, us-gaap:EstimateOfFairValueFairValueDisclosure, us-gaap:SeniorNotes, srt:AffiliatedEntity



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302017-12-31
Value1018410366103841034410201980299907852
Percentage of NotesPayableFairValueDisclosure92.994.694.894.493.189.591.265.9

us-gaap:NotesReceivableGross



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value424245824289449045734534397839143896396035993496315932302795297633763558519355555138
Percentage of NotesReceivableGross100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivableRecordedInvestmentByClassOfFinancingReceivable

tmus:EquipmentInstallmentPlanReceivablesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value290030002900300031003000
Percentage of NotesReceivableGross68.465.567.666.867.866.2

us-gaap:NotesReceivableNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value377341833894405041284085358935303515356432363162285529142508266230533225477151144690
Percentage of NotesReceivableNet100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BalanceSheetLocation

tmus:EquipmentInstallmentPlanReceivablesDueAfterOneYearNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value136715831469160416621547122312221234127411001102975984839831904847137416111628
Percentage of NotesReceivableNet36.237.837.739.640.337.934.134.635.135.734.034.934.233.833.531.229.626.328.831.534.7

tmus:EquipmentInstallmentPlanReceivablesNet



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value240626002425244624662538236623082281229021362060188019301669183121492378339735033062
Percentage of NotesReceivableNet63.862.262.360.459.762.165.965.464.964.366.065.165.866.266.568.870.473.771.268.565.3

us-gaap:OperatingLeaseLiabilityCurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value218722872232226822020
Percentage of OperatingLeaseLiabilityCurrent100.0100.0100.0100.0100.00.0

us-gaap:OperatingLeaseLiabilityNoncurrent



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-31
Value1046410539106141014593390
Percentage of OperatingLeaseLiabilityNoncurrent100.0100.0100.0100.0100.00.0

us-gaap:TransactionType

us-gaap:OtherLiabilities

tmus:EIPSecuritizationArrangement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312014-12-31
Value818212320222220103233455330
Percentage of OtherLiabilities100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

us-gaap:StatementClassOfStock

us-gaap:PreferredStockParOrStatedValuePerShare

us-gaap:SeriesAPreferredStock



Period End2020-03-31
Value1e-05
Percentage of PreferredStockParOrStatedValuePerShare100.0

us-gaap:StatementClassOfStock

us-gaap:PreferredStockSharesAuthorized

us-gaap:SeriesAPreferredStock



Period End2020-03-31
Value100
Percentage of PreferredStockSharesAuthorized100.0

us-gaap:StatementClassOfStock

us-gaap:PreferredStockSharesOutstanding

us-gaap:SeriesAPreferredStock



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-30
Value00000000002020
Percentage of PreferredStockSharesOutstanding0.00.00.00.00.00.00.00.00.00.0100.0100.0

us-gaap:ReceivableWithImputedInterestDiscount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value268299294335341330273268267264233231202195154177194185285329332
Percentage of ReceivableWithImputedInterestDiscount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ReceivableWithImputedInterestNetAmount



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302014-12-31
Value397442833995415542324204370536463629369633663265295730352641279931823373490852264806
Percentage of ReceivableWithImputedInterestNetAmount100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:FinancingReceivablesPeriodPastDue

tmus:FinancingReceivables1to30DaysPastDue



Period End2020-03-31
Value3882
Percentage of ReceivableWithImputedInterestNetAmount97.7

tmus:FinancingReceivables31to60DaysPastDue



Period End2020-03-31
Value49
Percentage of ReceivableWithImputedInterestNetAmount1.2

tmus:FinancingReceivables61to90DaysPastDue



Period End2020-03-31
Value20
Percentage of ReceivableWithImputedInterestNetAmount0.5

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue



Period End2020-03-31
Value23
Percentage of ReceivableWithImputedInterestNetAmount0.6

us-gaap:FinancingReceivablesPeriodPastDue, us-gaap:InternalCreditAssessment

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value2047
Percentage of ReceivableWithImputedInterestNetAmount51.5

tmus:FinancingReceivables1to30DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value1835
Percentage of ReceivableWithImputedInterestNetAmount46.2

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value16
Percentage of ReceivableWithImputedInterestNetAmount0.4

tmus:FinancingReceivables31to60DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value33
Percentage of ReceivableWithImputedInterestNetAmount0.8

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value6
Percentage of ReceivableWithImputedInterestNetAmount0.2

tmus:FinancingReceivables61to90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value14
Percentage of ReceivableWithImputedInterestNetAmount0.4

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Prime



Period End2020-03-31
Value6
Percentage of ReceivableWithImputedInterestNetAmount0.2

us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDue, us-gaap:Subprime



Period End2020-03-31
Value17
Percentage of ReceivableWithImputedInterestNetAmount0.4

us-gaap:InternalCreditAssessment

us-gaap:Prime



Period End2020-03-31
Value2075
Percentage of ReceivableWithImputedInterestNetAmount52.2

us-gaap:Subprime



Period End2020-03-31
Value1899
Percentage of ReceivableWithImputedInterestNetAmount47.8

us-gaap:RevenueRemainingPerformanceObligation



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value99813003366529011100272513879
Percentage of RevenueRemainingPerformanceObligation100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:ProductOrService

tmus:BrandedPostpaidRevenue



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-31
Value157237229234269308379525694
Percentage of RevenueRemainingPerformanceObligation15.718.268.235.929.928.0139.3102.379.0

us-gaap:SaleLeasebackTransactionAmountDueUnderFinancingArrangement



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312019-01-012018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302012-12-31
Value223022362241224722442212255725652574258225902599260626142621262926342640265825282526252325212510250225042496248824792461
Percentage of SaleLeasebackTransactionAmountDueUnderFinancingArrangement100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0

us-gaap:BusinessAcquisition, us-gaap:DebtInstrument, us-gaap:SubsequentEventType

us-gaap:SecuredDebt

tmus:SprintCorporation, tmus:SecuredTermLoanDue2024, us-gaap:SubsequentEvent



Period End2020-04-01
Value5900
Percentage of SecuredDebt100.0

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

tmus:GuaranteedNotesDue2028, us-gaap:SubsequentEvent, tmus:SprintCorporation



Period End2020-04-01
Value1000
Percentage of SecuredDebt16.9

us-gaap:ShortTermBorrowings



Period End2020-03-312019-12-31
Value025
Percentage of ShortTermBorrowings0.0100.0

us-gaap:ShareRepurchaseProgram, us-gaap:StatementScenario

us-gaap:StockRepurchaseProgramAuthorizedAmount1

tmus:A2018StockRepurchaseProgram, us-gaap:ScenarioForecast



Period End2020-12-312019-12-312018-12-31
Value40003000500
Percentage of StockRepurchaseProgramAuthorizedAmount1100.0100.0100.0

us-gaap:BalanceSheetLocation, us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:TradingSecurities

us-gaap:OtherCurrentAssets, us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value687692658
Percentage of TradingSecurities100.0100.0100.0

us-gaap:OtherNoncurrentAssets, us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value928988
Percentage of TradingSecurities13.412.913.4

us-gaap:FairValueByFairValueHierarchyLevel, us-gaap:FairValueByMeasurementBasis

us-gaap:FairValueInputsLevel3, us-gaap:CarryingReportedAmountFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value779781782763738746800778728745671676678659389
Percentage of TradingSecurities113.4112.90.00.00.0113.40.00.00.00.00.00.00.00.00.0

us-gaap:FairValueInputsLevel3, us-gaap:EstimateOfFairValueFairValueDisclosure



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312015-12-31
Value779781782763738746800778728745671676678659389
Percentage of TradingSecurities113.4112.90.00.00.0113.40.00.00.00.00.00.00.00.00.0

us-gaap:QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTransferredFinancialAssetsByTransferOrTransferee, us-gaap:TransactionType

us-gaap:VariableInterestEntityPrimaryBeneficiary, tmus:FactoringandEIPSecuritizationArrangement



Period End2020-03-312019-12-312018-12-31
Value779781746
Percentage of TradingSecurities113.4112.9113.4

us-gaap:TreasuryStockShares



Period End2020-03-312019-12-312019-09-302019-06-302019-03-312018-12-312018-09-302018-06-302018-03-312017-12-312017-09-302017-06-302017-03-312016-12-312016-09-302016-06-302016-03-312015-12-312015-09-302015-06-302015-03-312014-12-312014-09-302014-06-302014-03-312013-12-312013-09-302013-06-302013-03-312012-12-312012-09-302012-06-302012-03-312011-12-312011-09-302011-06-302011-03-312010-12-312010-09-302010-06-302009-12-31
Value11111111111111111111111111111100000000000
Percentage of TreasuryStockShares100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.00.0

Line plots across dimensions of each concept

us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax us-gaap:ProductOrService


us-gaap:CostOfGoodsAndServicesSold us-gaap:ProductOrService


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents


us-gaap:StockholdersEquity us-gaap:StatementEquityComponents