UBmatrix Calculation Trace Report
Line Concept Weight Balance Decimals Precision Reported Calculated Source Message
1 Extended Link [ http://bwpmlp.com/role/CondensedConsolidatedStatementsOfIncome ]
2 Context c00007 [ 2008-01-01 - 2008-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ProfitLoss NA -5 [4] 226400000 226,400,000 Instance OK
bwp:IncomeBeforeIncomeTaxes 1.0 NA -5 [4] 227200000 227,200,000 Instance OK
us-gaap:NonoperatingIncomeExpense 1.0 NA -5 [3] -44100000 44,100,000 Instance Inconsistency found, calculated value is 44,100,000
us-gaap:InterestExpense -1.0 debit -5 [3] -46000000 -46,000,000 Instance
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty -1.0 debit -5 [0] 0 0 Instance
us-gaap:InvestmentIncomeInterest 1.0 credit -5 [2] -2100000 -2,100,000 Instance
us-gaap:OtherNonoperatingIncomeExpense 1.0 credit -5 [1] 200000 200,000 Instance
us-gaap:OperatingIncomeLoss 1.0 NA -5 [4] 271300000 271,300,000 Instance OK
us-gaap:OperatingExpenses -1.0 NA -5 [4] 307900000 307,900,000 Instance OK
bwp:FuelAndGasTransportationExpense 1.0 debit -5 [3] 79900000 79,900,000 Instance
us-gaap:GainLossOnContractTermination -1.0 credit -5 [3] 11200000 11,200,000 Instance
bwp:OperationAndMaintenanceExpenses 1.0 debit -5 [3] 84200000 84,200,000 Instance
us-gaap:GeneralAndAdministrativeExpense 1.0 debit -5 [3] 78300000 78,300,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [3] 91400000 91,400,000 Instance
us-gaap:TaxesExcludingIncomeAndExciseTaxes 1.0 debit -5 [3] 34000000 34,000,000 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [2] 1400000 1,400,000 Instance
us-gaap:GainLossOnDispositionOfOtherAssets -1.0 credit -5 [3] 50100000 50,100,000 Instance
us-gaap:Revenues 1.0 NA -5 [4] 579200000 579,200,000 Instance OK
bwp:GasTransportationRevenues 1.0 credit -5 [4] 509500000 509,500,000 Instance
bwp:ParkingAndLendingRevenue 1.0 credit -5 [3] 12700000 12,700,000 Instance
us-gaap:NaturalGasStorageRevenue 1.0 credit -5 [3] 38000000 38,000,000 Instance
bwp:OtherOperatingRevenue 1.0 -5 [3] 19000000 19,000,000 Instance
us-gaap:IncomeTaxExpenseBenefit -1.0 debit -5 [1] 800000 800,000 Instance
2 Context c00013 [ 2009-01-01 - 2009-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ProfitLoss NA -5 [3] 91100000 91,100,000 Instance OK
bwp:IncomeBeforeIncomeTaxes 1.0 NA -5 [3] 91300000 91,300,000 Instance OK
us-gaap:NonoperatingIncomeExpense 1.0 NA -5 [3] -94900000 94,900,000 Instance Inconsistency found, calculated value is 94,900,000
us-gaap:InterestExpense -1.0 debit -5 [3] -90500000 -90,500,000 Instance
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty -1.0 debit -5 [2] -4800000 -4,800,000 Instance
us-gaap:InvestmentIncomeInterest 1.0 credit -5 [1] -200000 -200,000 Instance
us-gaap:OtherNonoperatingIncomeExpense 1.0 credit -5 [1] -200000 -200,000 Instance
us-gaap:OperatingIncomeLoss 1.0 NA -5 [4] 186200000 186,200,000 Instance OK
us-gaap:OperatingExpenses -1.0 NA -5 [4] 444000000 444,000,000 Instance OK
bwp:FuelAndGasTransportationExpense 1.0 debit -5 [3] 38100000 38,100,000 Instance
us-gaap:GainLossOnContractTermination -1.0 credit -5 [0] 0 0 Instance
bwp:OperationAndMaintenanceExpenses 1.0 debit -5 [3] 98700000 98,700,000 Instance
us-gaap:GeneralAndAdministrativeExpense 1.0 debit -5 [3] 89300000 89,300,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [4] 150500000 150,500,000 Instance
us-gaap:TaxesExcludingIncomeAndExciseTaxes 1.0 debit -5 [3] 59600000 59,600,000 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [0] 0 0 Instance
us-gaap:GainLossOnDispositionOfOtherAssets -1.0 credit -5 [2] -7800000 -7,800,000 Instance
us-gaap:Revenues 1.0 NA -5 [4] 630200000 630,200,000 Instance OK
bwp:GasTransportationRevenues 1.0 credit -5 [4] 545900000 545,900,000 Instance
bwp:ParkingAndLendingRevenue 1.0 credit -5 [3] 25300000 25,300,000 Instance
us-gaap:NaturalGasStorageRevenue 1.0 credit -5 [3] 42200000 42,200,000 Instance
bwp:OtherOperatingRevenue 1.0 -5 [3] 16800000 16,800,000 Instance
us-gaap:IncomeTaxExpenseBenefit -1.0 debit -5 [1] 200000 200,000 Instance
2 Context c00037 [ 2009-07-01 - 2009-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ProfitLoss NA -5 [3] 18800000 18,800,000 Instance OK
bwp:IncomeBeforeIncomeTaxes 1.0 NA -5 [3] 18700000 18,700,000 Instance OK
us-gaap:NonoperatingIncomeExpense 1.0 NA -5 [3] -35700000 35,700,000 Instance Inconsistency found, calculated value is 35,700,000
us-gaap:InterestExpense -1.0 debit -5 [3] -32600000 -32,600,000 Instance
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty -1.0 debit -5 [2] -3100000 -3,100,000 Instance
us-gaap:InvestmentIncomeInterest 1.0 credit -5 [0] 0 0 Instance
us-gaap:OtherNonoperatingIncomeExpense 1.0 credit -5 [0] 0 0 Instance
us-gaap:OperatingIncomeLoss 1.0 NA -5 [3] 54400000 54,400,000 Instance OK
us-gaap:OperatingExpenses -1.0 NA -5 [4] 151000000 151,000,000 Instance OK
bwp:FuelAndGasTransportationExpense 1.0 debit -5 [3] 11600000 11,600,000 Instance
us-gaap:GainLossOnContractTermination -1.0 credit -5 [0] 0 0 Instance
bwp:OperationAndMaintenanceExpenses 1.0 debit -5 [3] 35700000 35,700,000 Instance
us-gaap:GeneralAndAdministrativeExpense 1.0 debit -5 [3] 29800000 29,800,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [3] 52500000 52,500,000 Instance
us-gaap:TaxesExcludingIncomeAndExciseTaxes 1.0 debit -5 [3] 20000000 20,000,000 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [0] 0 0 Instance
us-gaap:GainLossOnDispositionOfOtherAssets -1.0 credit -5 [2] -1400000 -1,400,000 Instance
us-gaap:Revenues 1.0 NA -5 [4] 205400000 205,400,000 Instance OK
bwp:GasTransportationRevenues 1.0 credit -5 [4] 175700000 175,700,000 Instance
bwp:ParkingAndLendingRevenue 1.0 credit -5 [2] 9500000 9,500,000 Instance
us-gaap:NaturalGasStorageRevenue 1.0 credit -5 [3] 14300000 14,300,000 Instance
bwp:OtherOperatingRevenue 1.0 -5 [2] 5900000 5,900,000 Instance
us-gaap:IncomeTaxExpenseBenefit -1.0 debit -5 [1] -100000 -100,000 Instance
2 Context c00038 [ 2008-07-01 - 2008-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ProfitLoss NA -5 [3] 73600000 73,600,000 Instance OK
bwp:IncomeBeforeIncomeTaxes 1.0 NA -5 [3] 73900000 73,900,000 Instance OK
us-gaap:NonoperatingIncomeExpense 1.0 NA -5 [3] -14900000 14,900,000 Instance Inconsistency found, calculated value is 14,900,000
us-gaap:InterestExpense -1.0 debit -5 [2] -9300000 -9,300,000 Instance
us-gaap:RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty -1.0 debit -5 [0] 0 0 Instance
us-gaap:InvestmentIncomeInterest 1.0 credit -5 [1] -700000 -700,000 Instance
us-gaap:OtherNonoperatingIncomeExpense 1.0 credit -5 [2] 6300000 6,300,000 Instance
us-gaap:OperatingIncomeLoss 1.0 NA -5 [3] 88800000 88,800,000 Instance OK
us-gaap:OperatingExpenses -1.0 NA -5 [4] 102800000 102,800,000 Instance OK
bwp:FuelAndGasTransportationExpense 1.0 debit -5 [3] 32800000 32,800,000 Instance
us-gaap:GainLossOnContractTermination -1.0 credit -5 [0] 0 0 Instance
bwp:OperationAndMaintenanceExpenses 1.0 debit -5 [3] 35600000 35,600,000 Instance
us-gaap:GeneralAndAdministrativeExpense 1.0 debit -5 [3] 25800000 25,800,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [3] 33600000 33,600,000 Instance
us-gaap:TaxesExcludingIncomeAndExciseTaxes 1.0 debit -5 [3] 11100000 11,100,000 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [0] 0 0 Instance
us-gaap:GainLossOnDispositionOfOtherAssets -1.0 credit -5 [3] 36100000 36,100,000 Instance
us-gaap:Revenues 1.0 NA -5 [4] 191600000 191,600,000 Instance OK
bwp:GasTransportationRevenues 1.0 credit -5 [4] 172800000 172,800,000 Instance
bwp:ParkingAndLendingRevenue 1.0 credit -5 [2] 3000000 3,000,000 Instance
us-gaap:NaturalGasStorageRevenue 1.0 credit -5 [3] 13700000 13,700,000 Instance
bwp:OtherOperatingRevenue 1.0 -5 [2] 2100000 2,100,000 Instance
us-gaap:IncomeTaxExpenseBenefit -1.0 debit -5 [1] 300000 300,000 Instance


1 Extended Link [ http://bwpmlp.com/role/CondensedConsolidatedStatementsOfCashFlows ]
2 Context c00007 [ 2008-01-01 - 2008-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:NetCashProvidedByUsedInFinancingActivities NA -5 [5] 1265700000 1,265,700,000 Instance OK
us-gaap:ProceedsFromIssuanceOfUnsecuredDebt 1.0 debit -5 [4] 247200000 247,200,000 Instance
us-gaap:ProceedsFromLongTermLinesOfCredit 1.0 debit -5 [4] 778000000 778,000,000 Instance
us-gaap:RepaymentsOfLongTermLinesOfCredit -1.0 credit -5 [4] 522000000 522,000,000 Instance
us-gaap:RepaymentsOfNotesPayable -1.0 credit -5 [0] 0 0 Instance
us-gaap:ProceedsFromRelatedPartyDebt 1.0 debit -5 [0] 0 0 Instance
us-gaap:RepaymentsOfRelatedPartyDebt -1.0 credit -5 [0] 0 0 Instance
us-gaap:PartnersCapitalAccountDistributions 1.0 debit -5 [4] -186300000 -186,300,000 Instance
us-gaap:ProceedsFromIssuanceOfCommonLimitedPartnersUnits 1.0 debit -5 [4] 243600000 243,600,000 Instance
bwp:ProceedsFromSaleOfClassBLimitedPartnerUnits 1.0 debit -5 [4] 686000000 686,000,000 Instance
us-gaap:ProceedsFromOtherEquity 1.0 debit -5 [3] 19200000 19,200,000 Instance
us-gaap:NetCashProvidedByUsedInInvestingActivities NA -5 [5] -1837000000 -1,837,000,000 Instance OK
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment -1.0 credit -5 [5] 1905600000 1,905,600,000 Instance
us-gaap:ProceedsFromSaleOfProductiveAssets 1.0 debit -5 [3] 63000000 63,000,000 Instance
us-gaap:ProceedsFromInsuranceSettlementInvestingActivities 1.0 debit -5 [2] 4700000 4,700,000 Instance
us-gaap:IncreaseDecreaseDueFromAffiliates -1.0 credit -5 [1] -900000 -900,000 Instance
us-gaap:PaymentsToAcquireShortTermInvestments -1.0 credit -5 [0] 0 0 Instance
us-gaap:NetCashProvidedByUsedInOperatingActivities NA -5 [4] 276100000 376,300,000 Instance Inconsistency found, calculated value is 376,300,000
us-gaap:ProfitLoss 1.0 credit -5 [4] 226400000 226,400,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [3] 91400000 91,400,000 Instance
us-gaap:AmortizationOfDeferredCharges 1.0 debit -5 [2] 6900000 6,900,000 Instance
us-gaap:AmortizationOfAcquisitionCosts 1.0 debit -5 [1] -200000 -200,000 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [2] 1400000 1,400,000 Instance
us-gaap:GainLossOnDispositionOfOtherAssets 1.0 credit -5 [3] 50100000 50,100,000 Instance
us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables 1.0 credit -5 [2] 2400000 2,400,000 Instance
us-gaap:IncreaseDecreaseInGasImbalanceReceivable 1.0 credit -5 [2] 5800000 5,800,000 Instance
us-gaap:IncreaseDecreaseInOtherRegulatoryAssets 1.0 credit -5 [1] 600000 600,000 Instance
us-gaap:IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories 1.0 credit -5 [2] -1300000 -1,300,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingAssets 1.0 credit -5 [3] -39400000 -39,400,000 Instance
us-gaap:IncreaseDecreaseInAccountsPayable 1.0 debit -5 [2] 6700000 6,700,000 Instance
us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties 1.0 debit -5 [1] 700000 700,000 Instance
bwp:IncreaseDecreaseInGasImbalancePayable 1.0 debit -5 [3] 12900000 12,900,000 Instance
us-gaap:IncreaseDecreaseInAccruedLiabilities 1.0 debit -5 [3] 14900000 14,900,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingLiabilities 1.0 debit -5 [2] -3000000 -3,000,000 Instance
2 Context c00013 [ 2009-01-01 - 2009-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:NetCashProvidedByUsedInFinancingActivities NA -5 [4] 201400000 201,400,000 Instance OK
us-gaap:ProceedsFromIssuanceOfUnsecuredDebt 1.0 debit -5 [4] 346700000 346,700,000 Instance
us-gaap:ProceedsFromLongTermLinesOfCredit 1.0 debit -5 [4] 161500000 161,500,000 Instance
us-gaap:RepaymentsOfLongTermLinesOfCredit -1.0 credit -5 [4] 475000000 475,000,000 Instance
us-gaap:RepaymentsOfNotesPayable -1.0 credit -5 [2] 1000000 1,000,000 Instance
us-gaap:ProceedsFromRelatedPartyDebt 1.0 debit -5 [4] 200000000 200,000,000 Instance
us-gaap:RepaymentsOfRelatedPartyDebt -1.0 credit -5 [4] 100000000 100,000,000 Instance
us-gaap:PartnersCapitalAccountDistributions 1.0 debit -5 [4] -263900000 -263,900,000 Instance
us-gaap:ProceedsFromIssuanceOfCommonLimitedPartnersUnits 1.0 debit -5 [4] 326300000 326,300,000 Instance
bwp:ProceedsFromSaleOfClassBLimitedPartnerUnits 1.0 debit -5 [0] 0 0 Instance
us-gaap:ProceedsFromOtherEquity 1.0 debit -5 [2] 6800000 6,800,000 Instance
us-gaap:NetCashProvidedByUsedInInvestingActivities NA -5 [4] -481900000 -481,900,000 Instance OK
us-gaap:PaymentsToAcquirePropertyPlantAndEquipment -1.0 credit -5 [4] 656900000 656,900,000 Instance
us-gaap:ProceedsFromSaleOfProductiveAssets 1.0 debit -5 [0] 0 0 Instance
us-gaap:ProceedsFromInsuranceSettlementInvestingActivities 1.0 debit -5 [0] 0 0 Instance
us-gaap:IncreaseDecreaseDueFromAffiliates -1.0 credit -5 [0] 0 0 Instance
us-gaap:PaymentsToAcquireShortTermInvestments -1.0 credit -5 [4] -175000000 -175,000,000 Instance
us-gaap:NetCashProvidedByUsedInOperatingActivities NA -5 [4] 265700000 250,100,000 Instance Inconsistency found, calculated value is 250,100,000
us-gaap:ProfitLoss 1.0 credit -5 [3] 91100000 91,100,000 Instance
us-gaap:DepreciationAndAmortization 1.0 debit -5 [4] 150500000 150,500,000 Instance
us-gaap:AmortizationOfDeferredCharges 1.0 debit -5 [2] 7000000 7,000,000 Instance
us-gaap:AmortizationOfAcquisitionCosts 1.0 debit -5 [0] 0 0 Instance
us-gaap:OtherAssetImpairmentCharges 1.0 debit -5 [0] 0 0 Instance
us-gaap:GainLossOnDispositionOfOtherAssets 1.0 credit -5 [2] -7800000 -7,800,000 Instance
us-gaap:IncreaseDecreaseInAccountsAndOtherReceivables 1.0 credit -5 [2] -8300000 -8,300,000 Instance
us-gaap:IncreaseDecreaseInGasImbalanceReceivable 1.0 credit -5 [2] -5900000 -5,900,000 Instance
us-gaap:IncreaseDecreaseInOtherRegulatoryAssets 1.0 credit -5 [0] 0 0 Instance
us-gaap:IncreaseDecreaseInRawMaterialsPackagingMaterialsAndSuppliesInventories 1.0 credit -5 [3] -30800000 -30,800,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingAssets 1.0 credit -5 [3] -25900000 -25,900,000 Instance
us-gaap:IncreaseDecreaseInAccountsPayable 1.0 debit -5 [3] 18000000 18,000,000 Instance
us-gaap:IncreaseDecreaseInAccountsPayableRelatedParties 1.0 debit -5 [2] 2800000 2,800,000 Instance
bwp:IncreaseDecreaseInGasImbalancePayable 1.0 debit -5 [1] -800000 -800,000 Instance
us-gaap:IncreaseDecreaseInAccruedLiabilities 1.0 debit -5 [3] 21000000 21,000,000 Instance
us-gaap:IncreaseDecreaseInOtherOperatingLiabilities 1.0 debit -5 [3] 39200000 39,200,000 Instance


1 Extended Link [ http://bwpmlp.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome ]
2 Context c00007 [ 2008-01-01 - 2008-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest NA -5 [4] 219000000 168,800,000 Instance Inconsistency found, calculated value is 168,800,000
us-gaap:ProfitLoss 1.0 credit -5 [4] 226400000 226,400,000 Instance
us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease 1.0 -5 [3] -25900000 -25,900,000 Instance
us-gaap:OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax -1.0 debit -5 [3] 25100000 25,100,000 Instance
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease 1.0 -5 [2] -6600000 -6,600,000 Instance
2 Context c00013 [ 2009-01-01 - 2009-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest NA -5 [3] 79100000 107,000,000 Instance Inconsistency found, calculated value is 107,000,000
us-gaap:ProfitLoss 1.0 credit -5 [3] 91100000 91,100,000 Instance
us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease 1.0 -5 [2] 7800000 7,800,000 Instance
us-gaap:OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax -1.0 debit -5 [3] -13800000 -13,800,000 Instance
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease 1.0 -5 [2] -6000000 -6,000,000 Instance
2 Context c00037 [ 2009-07-01 - 2009-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest NA -5 [3] 11700000 23,300,000 Instance Inconsistency found, calculated value is 23,300,000
us-gaap:ProfitLoss 1.0 credit -5 [3] 18800000 18,800,000 Instance
us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease 1.0 -5 [1] -200000 -200,000 Instance
us-gaap:OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax -1.0 debit -5 [2] -5800000 -5,800,000 Instance
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease 1.0 -5 [2] -1100000 -1,100,000 Instance
2 Context c00038 [ 2008-07-01 - 2008-09-30 ]
c-equal
3 Unit u000
u-equal
us-gaap:ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest NA -5 [4] 100300000 85,500,000 Instance Inconsistency found, calculated value is 85,500,000
us-gaap:ProfitLoss 1.0 credit -5 [3] 73600000 73,600,000 Instance
us-gaap:OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease 1.0 -5 [3] 21500000 21,500,000 Instance
us-gaap:OtherComprehensiveIncomeReclassificationAdjustmentOnDerivativesIncludedInNetIncomeNetOfTax -1.0 debit -5 [2] 7400000 7,400,000 Instance
us-gaap:OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease 1.0 -5 [2] -2200000 -2,200,000 Instance


1 Extended Link [ http://bwpmlp.com/role/CondensedConsolidatedBalanceSheets ]
2 Context c00019 [ 2008-12-31 - ]
c-equal
3 Unit u000
u-equal
us-gaap:Assets NA -5 [5] 6721600000 6,721,600,000 Instance OK
us-gaap:AssetsCurrent 1.0 NA -5 [4] 451800000 451,800,000 Instance OK
us-gaap:CashAndCashEquivalentsAtCarryingValue 1.0 debit -5 [4] 137700000 137,700,000 Instance
us-gaap:ShortTermInvestments 1.0 debit -5 [4] 175000000 175,000,000 Instance
us-gaap:ReceivablesNetCurrent 1.0 debit -5 [3] 67300000 67,300,000 Instance
us-gaap:OtherReceivables 1.0 debit -5 [3] 18000000 18,000,000 Instance
us-gaap:GasImbalanceAssetLiability 1.0 debit -5 [3] 13500000 13,500,000 Instance
us-gaap:InventoryNet 1.0 debit -5 [2] 2600000 2,600,000 Instance
us-gaap:RegulatoryAssetsCurrent 1.0 debit -5 [2] 5400000 5,400,000 Instance
us-gaap:EnergyRelatedInventoryGasStoredUnderground 1.0 debit -5 [1] 200000 200,000 Instance
us-gaap:PrepaidExpenseCurrent 1.0 debit -5 [3] 17300000 17,300,000 Instance
us-gaap:OtherAssetsCurrent 1.0 debit -5 [3] 14800000 14,800,000 Instance
us-gaap:PropertyPlantAndEquipmentNet 1.0 NA -5 [5] 5900200000 5,900,200,000 Instance OK
us-gaap:PropertyPlantAndEquipmentGross 1.0 NA -5 [5] 6282600000 6,282,600,000 Instance OK
bwp:NaturalGasTransmissionPlant 1.0 debit -5 [5] 3871000000 3,871,000,000 Instance
us-gaap:ConstructionInProgressGross 1.0 debit -5 [5] 2196400000 2,196,400,000 Instance
bwp:OtherNaturalGasPlant 1.0 -5 [4] 215200000 215,200,000 Instance
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment -1.0 credit -5 [4] 382400000 382,400,000 Instance
us-gaap:AssetsNoncurrent 1.0 NA -5 [4] 369600000 369,600,000 Instance OK
us-gaap:Goodwill 1.0 debit -5 [4] 163500000 163,500,000 Instance
us-gaap:InventoryGasInStorageUndergroundNoncurrent 1.0 debit -5 [4] 124800000 124,800,000 Instance
us-gaap:RegulatoryAssetsNoncurrent 1.0 debit -5 [3] 15400000 15,400,000 Instance
us-gaap:OtherAssetsNoncurrent 1.0 debit -5 [3] 65900000 65,900,000 Instance
us-gaap:LiabilitiesAndPartnersCapital NA -5 [5] 6721600000 6,721,600,000 Instance OK
us-gaap:PartnersCapital 1.0 NA -5 [5] 3245000000 3,245,000,000 Instance OK
bwp:LimitedPartnerCapitalAccountCommonUnits 1.0 credit -5 [5] 2504800000 2,504,800,000 Instance
bwp:LimitedPartnerCapitalAccountClassBUnits 1.0 -5 [4] 692800000 692,800,000 Instance
us-gaap:GeneralPartnersCapitalAccount 1.0 credit -5 [3] 62900000 62,900,000 Instance
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax 1.0 credit -5 [3] -15500000 -15,500,000 Instance
us-gaap:LongTermDebtNoncurrent 1.0 NA -5 [5] 2889400000 2,889,400,000 Instance OK
us-gaap:NotesPayableRelatedPartiesNoncurrent 1.0 credit -5 [0] 0 0 Instance
us-gaap:UnsecuredLongTermDebt 1.0 credit -5 [5] 2889400000 2,889,400,000 Instance
us-gaap:LiabilitiesCurrent 1.0 NA -5 [4] 434000000 434,000,000 Instance OK
us-gaap:AccountsPayableCurrent 1.0 credit -5 [4] 216400000 216,400,000 Instance
us-gaap:DueToRelatedPartiesCurrent 1.0 credit -5 [0] 0 0 Instance
us-gaap:AccountsPayableRelatedPartiesCurrentAndNoncurrent 1.0 credit -5 [2] 1800000 1,800,000 Instance
us-gaap:AccountsPayableOtherCurrent 1.0 credit -5 [2] 7400000 7,400,000 Instance
bwp:TransportationAndExchange 1.0 credit -5 [3] 11600000 11,600,000 Instance
us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent 1.0 credit -5 [3] 35200000 35,200,000 Instance
us-gaap:InterestPayableCurrentAndNoncurrent 1.0 credit -5 [3] 40100000 40,100,000 Instance
us-gaap:EmployeeRelatedLiabilitiesCurrent 1.0 credit -5 [3] 16300000 16,300,000 Instance
us-gaap:ConstructionPayableCurrentAndNoncurrent 1.0 credit -5 [3] 76300000 76,300,000 Instance
us-gaap:DeferredRevenue 1.0 credit -5 [2] 1800000 1,800,000 Instance
us-gaap:OtherLiabilitiesCurrent 1.0 credit -5 [3] 27100000 27,100,000 Instance
us-gaap:LiabilitiesNoncurrent 1.0 NA -5 [4] 153200000 153,200,000 Instance OK
us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent 1.0 credit -5 [3] 35700000 35,700,000 Instance
us-gaap:DueToRelatedPartiesNoncurrent 1.0 credit -5 [3] 20600000 20,600,000 Instance
us-gaap:AssetRetirementObligationsNoncurrent 1.0 credit -5 [3] 18000000 18,000,000 Instance
bwp:ProvisionForOtherAssetRetirement 1.0 credit -5 [3] 45600000 45,600,000 Instance
us-gaap:OtherLiabilitiesNoncurrent 1.0 credit -5 [3] 33300000 33,300,000 Instance
2 Context c00025 [ 2009-09-30 - ]
c-equal
3 Unit u000
u-equal
us-gaap:Assets NA -5 [5] 6905500000 6,905,500,000 Instance OK
us-gaap:AssetsCurrent 1.0 NA -5 [4] 259100000 259,100,000 Instance OK
us-gaap:CashAndCashEquivalentsAtCarryingValue 1.0 debit -5 [4] 122900000 122,900,000 Instance
us-gaap:ShortTermInvestments 1.0 debit -5 [0] 0 0 Instance
us-gaap:ReceivablesNetCurrent 1.0 debit -5 [3] 71600000 71,600,000 Instance
us-gaap:OtherReceivables 1.0 debit -5 [3] 24100000 24,100,000 Instance
us-gaap:GasImbalanceAssetLiability 1.0 debit -5 [2] 5600000 5,600,000 Instance
us-gaap:InventoryNet 1.0 debit -5 [2] 4500000 4,500,000 Instance
us-gaap:RegulatoryAssetsCurrent 1.0 debit -5 [2] 5400000 5,400,000 Instance
us-gaap:EnergyRelatedInventoryGasStoredUnderground 1.0 debit -5 [2] 3900000 3,900,000 Instance
us-gaap:PrepaidExpenseCurrent 1.0 debit -5 [3] 12000000 12,000,000 Instance
us-gaap:OtherAssetsCurrent 1.0 debit -5 [2] 9100000 9,100,000 Instance
us-gaap:PropertyPlantAndEquipmentNet 1.0 NA -5 [5] 6234100000 6,234,100,000 Instance OK
us-gaap:PropertyPlantAndEquipmentGross 1.0 NA -5 [5] 6761200000 6,761,200,000 Instance OK
bwp:NaturalGasTransmissionPlant 1.0 debit -5 [5] 6297100000 6,297,100,000 Instance
us-gaap:ConstructionInProgressGross 1.0 debit -5 [4] 243400000 243,400,000 Instance
bwp:OtherNaturalGasPlant 1.0 -5 [4] 220700000 220,700,000 Instance
us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment -1.0 credit -5 [4] 527100000 527,100,000 Instance
us-gaap:AssetsNoncurrent 1.0 NA -5 [4] 412300000 412,300,000 Instance OK
us-gaap:Goodwill 1.0 debit -5 [4] 163500000 163,500,000 Instance
us-gaap:InventoryGasInStorageUndergroundNoncurrent 1.0 debit -5 [4] 134800000 134,800,000 Instance
us-gaap:RegulatoryAssetsNoncurrent 1.0 debit -5 [3] 15100000 15,100,000 Instance
us-gaap:OtherAssetsNoncurrent 1.0 debit -5 [3] 98900000 98,900,000 Instance
us-gaap:LiabilitiesAndPartnersCapital NA -5 [5] 6905500000 6,905,500,000 Instance OK
us-gaap:PartnersCapital 1.0 NA -5 [5] 3387200000 3,387,200,000 Instance OK
bwp:LimitedPartnerCapitalAccountCommonUnits 1.0 credit -5 [5] 2666300000 2,666,300,000 Instance
bwp:LimitedPartnerCapitalAccountClassBUnits 1.0 -5 [4] 682300000 682,300,000 Instance
us-gaap:GeneralPartnersCapitalAccount 1.0 credit -5 [3] 66100000 66,100,000 Instance
us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax 1.0 credit -5 [3] -27500000 -27,500,000 Instance
us-gaap:LongTermDebtNoncurrent 1.0 NA -5 [5] 3024500000 3,024,500,000 Instance OK
us-gaap:NotesPayableRelatedPartiesNoncurrent 1.0 credit -5 [4] 100000000 100,000,000 Instance
us-gaap:UnsecuredLongTermDebt 1.0 credit -5 [5] 2924500000 2,924,500,000 Instance
us-gaap:LiabilitiesCurrent 1.0 NA -5 [4] 318200000 318,200,000 Instance OK
us-gaap:AccountsPayableCurrent 1.0 credit -5 [3] 81900000 81,900,000 Instance
us-gaap:DueToRelatedPartiesCurrent 1.0 credit -5 [2] 3300000 3,300,000 Instance
us-gaap:AccountsPayableRelatedPartiesCurrentAndNoncurrent 1.0 credit -5 [2] 1300000 1,300,000 Instance
us-gaap:AccountsPayableOtherCurrent 1.0 credit -5 [2] 8700000 8,700,000 Instance
bwp:TransportationAndExchange 1.0 credit -5 [2] 7900000 7,900,000 Instance
us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent 1.0 credit -5 [3] 71700000 71,700,000 Instance
us-gaap:InterestPayableCurrentAndNoncurrent 1.0 credit -5 [3] 32200000 32,200,000 Instance
us-gaap:EmployeeRelatedLiabilitiesCurrent 1.0 credit -5 [3] 14600000 14,600,000 Instance
us-gaap:ConstructionPayableCurrentAndNoncurrent 1.0 credit -5 [3] 37900000 37,900,000 Instance
us-gaap:DeferredRevenue 1.0 credit -5 [3] 24300000 24,300,000 Instance
us-gaap:OtherLiabilitiesCurrent 1.0 credit -5 [3] 34400000 34,400,000 Instance
us-gaap:LiabilitiesNoncurrent 1.0 NA -5 [4] 175600000 175,600,000 Instance OK
us-gaap:DefinedBenefitPensionPlanLiabilitiesNoncurrent 1.0 credit -5 [3] 33500000 33,500,000 Instance
us-gaap:DueToRelatedPartiesNoncurrent 1.0 credit -5 [3] 26700000 26,700,000 Instance
us-gaap:AssetRetirementObligationsNoncurrent 1.0 credit -5 [3] 16900000 16,900,000 Instance
bwp:ProvisionForOtherAssetRetirement 1.0 credit -5 [3] 48500000 48,500,000 Instance
us-gaap:OtherLiabilitiesNoncurrent 1.0 credit -5 [3] 50000000 50,000,000 Instance


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