2.2.0.7 false CONSOLIDATED STATEMENTS OF CASH FLOWS (Constellation Energy Group, Inc. and Subsidiaries) (USD $) 0030 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Constellation Energy Group, Inc. and Subsidiaries) true false In Millions false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 2 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ false 3 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 Pure Standard http://www.xbrl.org/2003/instance pure xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USDPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 $ 5 Cash Flows From Operating Activities 3 us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income. false 6 Net income (loss) 4 us-gaap_ProfitLoss us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 true true false false 4503400000 4503.4 false false false 2 true true false false -1318400000 -1318.4 false false false 3 true true false false 833500000 833.5 false false false xbrli:monetaryItemType monetary The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A1, A4, A5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 5 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(1) false 7 Adjustments to reconcile to net cash provided by operating activities 4 us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 8 Depreciation, depletion, and amortization 5 us-gaap_DepreciationAndAmortization us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 589100000 589.1 false false false 2 false true false false 583200000 583.2 false false false 3 false true false false 557800000 557.8 false false false xbrli:monetaryItemType monetary The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 5 false 9 Amortization of nuclear fuel 5 ceg_AmortizationOfNuclearFuel ceg false debit duration The expense charged against earnings for the periodic recognition of nuclear fuel costs. false false false false false false false false false false false terselabel false 1 false true false false 117900000 117.9 false false false 2 false true false false 123900000 123.9 false false false 3 false true false false 114300000 114.3 false false false xbrli:monetaryItemType monetary The expense charged against earnings for the periodic recognition of nuclear fuel costs. No authoritative reference available. false 10 Amortization of energy contracts and derivatives designated as hedges 5 us-gaap_AmortizationOfPowerContractsEmissionCredits us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -138400000 -138.4 false false false 2 false true false false -256300000 -256.3 false false false 3 false true false false -222900000 -222.9 false false false xbrli:monetaryItemType monetary The expense charged against earnings for the periodic recognition of capitalized costs related to purchasing power, fuel, or emission credits. These items may be purchased in one accounting period but are deducted from earnings over time through amortization. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 11 All other amortization 5 us-gaap_OtherAmortizationOfDeferredCharges us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 135700000 135.7 false false false 2 false true false false 40500000 40.5 false false false 3 false true false false 11200000 11.2 false false false xbrli:monetaryItemType monetary The charge against earnings in the period representing the allocation of deferred costs to periods expected to benefit from such costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 12 Accretion of asset retirement obligations 5 us-gaap_AssetRetirementObligationAccretionExpense us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 62300000 62.3 false false false 2 false true false false 68400000 68.4 false false false 3 false true false false 68300000 68.3 false false false xbrli:monetaryItemType monetary Amount of accretion expense recognized in the income statement during the period that is associated with asset retirement obligations. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Such accretion expense representing changes in the liability for an asset retirement obligation due to passage of time is the result of applying an interest method of allocation to the amount of the liability at the beginning of the period. The interest rate used to measure that change shall be the credit-adjusted risk-free rate that existed when the liability, or portion thereof, was initially measured. That amount shall be recognized as an increase in the carrying amount of the liability and as an expense classified as an operating item in the statement of income. Accretion expense shall not be considered to be interest cost for purposes of capitalization of interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 13, 14 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 22 -Subparagraph c(3) false 13 Deferred income taxes 5 us-gaap_DeferredIncomeTaxExpenseBenefit us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 1846900000 1846.9 false false false 2 false true false false -122800000 -122.8 false false false 3 false true false false 226200000 226.2 false false false xbrli:monetaryItemType monetary The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section I -Subsection 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 289 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 false 14 Investment tax credit adjustments 5 us-gaap_InvestmentTaxCredit us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -12100000 -12.1 false false false 2 false true false false -6400000 -6.4 false false false 3 false true false false -6700000 -6.7 false false false xbrli:monetaryItemType monetary The amount deducted from an entities' taxes, reflecting a percentage of an amount invested in certain assets spread over the useful life of those assets; includes deferred investment tax credits. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 15 Deferred fuel costs 5 us-gaap_IncreaseDecreaseInDeferredFuelCosts us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 68900000 68.9 false false false 2 false true false false 52000000 52.0 false false false 3 false true false false -248000000 -248.0 false false false xbrli:monetaryItemType monetary The net change during the reporting period in carrying amount of capitalized fuel costs of a regulated entity that are expected to be recoverable through rate adjustments within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 16 Defined benefit obligation expense 5 ceg_DefinedBenefitPlanExpenses ceg false debit duration The amount of pension, postemployment, and other (such as medical, dental and life insurance) postretirement benefit costs... false false false false false false false false false false false terselabel false 1 false true false false 85300000 85.3 false false false 2 false true false false 99600000 99.6 false false false 3 false true false false 111800000 111.8 false false false xbrli:monetaryItemType monetary The amount of pension, postemployment, and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for (1) defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss on assets, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments) and for (2) defined contribution plans (to the extent that a plan's defined contributions to an individual's account are to be made for periods in which that individual renders services, the net cost for a period shall be the contribution called for in that period; if a plan calls for contributions for periods after an individual retires or terminates, the estimated cost shall be accrued during the employee's service period). No authoritative reference available. false 17 Defined benefit obligation payments 5 ceg_DefinedBenefitObligationPayments ceg false credit duration The amount of cash or cash equivalents contributed during the reporting period by the entity to fund its pension plans and... false false false false false false false false false false true negated false 1 false true false false -372500000 -372.5 false false false 2 false true false false -120400000 -120.4 false false false 3 false true false false -165400000 -165.4 false false false xbrli:monetaryItemType monetary The amount of cash or cash equivalents contributed during the reporting period by the entity to fund its pension plans and its nonpension postretirement benefit plans as well as payments to retirees and disabled employees. No authoritative reference available. false 18 Merger termination and strategic alternatives costs 5 ceg_MergerTerminationAndStrategicAlternativesCostsCashFlowImpact ceg false debit duration The cash flow impact of costs related to a merger and our pursuit of other strategic alternatives to the merger. false false false false false false false false false false false terselabel false 1 false true false false 128200000 128.2 false false false 2 false true false false 541800000 541.8 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash flow impact of costs related to a merger and our pursuit of other strategic alternatives to the merger. No authoritative reference available. false 19 Workforce reduction costs 5 us-gaap_SeveranceCosts us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 12600000 12.6 false false false 2 false true false false 22200000 22.2 false false false 3 false true false false 2300000 2.3 false false false xbrli:monetaryItemType monetary The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5-8 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 146 -Paragraph 8-13, 20 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS146-1 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 112 -Paragraph 7 false 20 Impairment losses and other costs 5 us-gaap_AssetImpairmentCharges us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 124700000 124.7 false false false 2 false true false false 741800000 741.8 false false false 3 false true false false 20200000 20.2 false false false xbrli:monetaryItemType monetary The charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 45, 46, 47 false 21 Impairment losses on nuclear decommissioning trust assets 5 ceg_ImpairmentLossesOnNuclearDecommissioningTrustAssets ceg false debit duration This element represents an impairment charge related to the nuclear decommissioning trust fund assets, pre-tax. false false false false false false false false false false false terselabel false 1 false true false false 62600000 62.6 false false false 2 false true false false 165000000 165.0 false false false 3 false true false false 8500000 8.5 false false false xbrli:monetaryItemType monetary This element represents an impairment charge related to the nuclear decommissioning trust fund assets, pre-tax. No authoritative reference available. false 22 Gain on sale of 49.99% membership interest in CENG 5 ceg_GainLossOnSaleOfInterestInCENG ceg false credit duration This element represents the gain (loss) on the sale of a membership interest in a subsidiary. false false false false false false false false false false true negated false 1 false true false false -7445600000 -7445.6 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents the gain (loss) on the sale of a membership interest in a subsidiary. No authoritative reference available. false 23 Gains on sale of CEP LLC equity 5 us-gaap_GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -63300000 -63.3 false false false xbrli:monetaryItemType monetary Gain or loss on entity's disposition of equity in securities of subsidiaries or 50 percent or less owned persons. Reflects the difference in the parent company's carrying amount of the equity interest in the subsidiary (or equity method investee) immediately before and after all stock transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Subparagraph g -Article 9 false 24 Loss (gain) on divestitures 5 us-gaap_GainLossOnDispositionOfAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 468800000 468.8 false false false 2 false true false false -38100000 -38.1 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary The gains and losses included in earnings resulting from the sale or disposal of tangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 false 25 Gains on termination of contracts 5 us-gaap_GainLossOnContractTermination us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -73100000 -73.1 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents the income received from or payment made to a third party in connection with the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one or the other party, a failure to perform. No authoritative reference available. false 26 Accrual of BGE residential customer credit 5 ceg_AccrualResidentialCustomerCredit ceg false debit duration This element represents the accrual of a residential customer credit. false false false false false false false false false false false terselabel false 1 false true false false 112400000 112.4 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents the accrual of a residential customer credit. No authoritative reference available. false 27 Equity in earnings of affiliates less than dividends received 5 us-gaap_IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 15500000 15.5 false false false 2 false true false false 6300000 6.3 false false false 3 false true false false 45300000 45.3 false false false xbrli:monetaryItemType monetary This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 28 Derivative contracts classified as financing activities 5 ceg_DerivativeContractsClassifiedAsFinancingActivitiesOperatingActivitiesImpact ceg false debit duration The amount of ongoing cash flows related to certain out-of-the-money acquired contracts that are derivatives and contain... false false false false false false false false false false false terselabel false 1 false true false false 1138300000 1138.3 false false false 2 false true false false -107200000 -107.2 false false false 3 false true false false 32200000 32.2 false false false xbrli:monetaryItemType monetary The amount of ongoing cash flows related to certain out-of-the-money acquired contracts that are derivatives and contain other than insignificant financing element. As a result, the cash flows from these contracts are reclassified from cash provided by (used in) operating activities to cash provided by (used in) financing activities. No authoritative reference available. false 29 Changes in working capital 5 us-gaap_IncreaseDecreaseInOperatingCapitalAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 30 Accounts receivable, excluding margin 6 ceg_IncreaseDecreaseInAccountsReceivableExcludingMargin ceg false credit duration The net change during the reporting period in amount due within one year (or one business cycle) from customers for the... false false false false false false false false false false true negated false 1 false true false false 543300000 543.3 false false false 2 false true false false 606700000 606.7 false false false 3 false true false false -664200000 -664.2 false false false xbrli:monetaryItemType monetary The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services and amounts related to exchange-traded derivatives, excluding margin. No authoritative reference available. false 31 Derivative assets and liabilities, excluding collateral 6 ceg_IncreaseDecreaseInDerivativeAssetsAndLiabilities ceg false credit duration The net change during the reporting period of all assets and liabilities resulting from contracts that meet the criteria of... false false false false false false false false false false true negated false 1 false true false false 425300000 425.3 false false false 2 false true false false -757900000 -757.9 false false false 3 false true false false -138200000 -138.2 false false false xbrli:monetaryItemType monetary The net change during the reporting period of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements, excluding collateral. No authoritative reference available. false 32 Net collateral and margin 6 us-gaap_IncreaseDecreaseInDepositOtherAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 1522800000 1522.8 false false false 2 false true false false -960300000 -960.3 false false false 3 false true false false 49600000 49.6 false false false xbrli:monetaryItemType monetary The aggregate net change during the reporting period in moneys given as security, collateral, or margin deposits. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 33 Materials, supplies, and fuel stocks 6 us-gaap_IncreaseDecreaseInInventories us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 220600000 220.6 false false false 2 false true false false -33500000 -33.5 false false false 3 false true false false -66400000 -66.4 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 34 Other current assets 6 us-gaap_IncreaseDecreaseInOtherOperatingAssets us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 217200000 217.2 false false false 2 false true false false -95400000 -95.4 false false false 3 false true false false -18500000 -18.5 false false false xbrli:monetaryItemType monetary The net change during the reporting period in other operating assets not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 35 Accounts payable and accrued liabilities 6 us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -1105000000 -1105.0 false false false 2 false true false false -225800000 -225.8 false false false 3 false true false false 448800000 448.8 false false false xbrli:monetaryItemType monetary The net change during the reporting period in the aggregate amount of obligations and expenses incurred but not paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 36 Liability for unrecognized tax benefits 6 us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 102100000 102.1 false false false 2 false true false false 79700000 79.7 false false false 3 false true false false 71900000 71.9 false false false xbrli:monetaryItemType monetary The net amount of all increases and decreases in unrecognized tax benefits for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a false 37 Other current liabilities 6 us-gaap_IncreaseDecreaseInOtherOperatingLiabilities us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 788800000 788.8 false false false 2 false true false false -238100000 -238.1 false false false 3 false true false false -14000000 -14.0 false false false xbrli:monetaryItemType monetary The net change during the reporting period in other operating obligations not otherwise defined in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 false 38 Other 5 ceg_OtherCashAndNoncashChangesInOperatingActivities ceg false debit duration Transactions that result in no cash inflows or outflows in the period in which they occur, but affect net income and thus are... false false false false false false false false false false false terselabel false 1 false true false false 171700000 171.7 false false false 2 false true false false -38500000 -38.5 false false false 3 false true false false -53300000 -53.3 false false false xbrli:monetaryItemType monetary Transactions that result in no cash inflows or outflows in the period in which they occur, but affect net income and thus are removed when calculating net cash flow from operating activities using the indirect method combined with the net change during the reporting period in the value of other assets or liabilities used in operating activities that are not otherwise defined in the taxonomy. This element is used when there is not a more specific and appropriate element. No authoritative reference available. false 39 Net cash provided by (used in) operating activities 4 us-gaap_NetCashProvidedByUsedInOperatingActivities us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 4390800000 4390.8 false false false 2 false true false false -1261100000 -1261.1 false false false 3 false true false false 941000000 941.0 false false false xbrli:monetaryItemType monetary The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 40 Cash Flows From Investing Activities 3 us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 41 Investments in property, plant and equipment 4 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -1529700000 -1529.7 false false false 2 false true false false -1934100000 -1934.1 false false false 3 false true false false -1295700000 -1295.7 false false false xbrli:monetaryItemType monetary The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph c false 42 Asset acquisitions and business combinations, net of cash acquired 4 ceg_AssetAcquisitionsAndBusinessCombinationsNetOfCashAcquired ceg false credit duration The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase, and the... false false false false false false false false false false true negated false 1 false true false false -41100000 -41.1 false false false 2 false true false false -315300000 -315.3 false false false 3 false true false false -347500000 -347.5 false false false xbrli:monetaryItemType monetary The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase, and the acquisition of other tangible assets not otherwise defined in the taxonomy. No authoritative reference available. false 43 Investments in nuclear decommissioning trust fund securities 4 ceg_InvestmentsInNuclearDecommissioningTrustFundSecurities ceg false credit duration Cash outflows for the investment in securities within the nuclear decommissioning trust fund that are classified as cash... false false false false false false false false false false true negated false 1 false true false false -385200000 -385.2 false false false 2 false true false false -440600000 -440.6 false false false 3 false true false false -659500000 -659.5 false false false xbrli:monetaryItemType monetary Cash outflows for the investment in securities within the nuclear decommissioning trust fund that are classified as cash flows from investing activities and are reported on a gross basis. No authoritative reference available. false 44 Proceeds from nuclear decommissioning trust fund securities 4 ceg_ProceedsFromNuclearDecommissioningTrustFundSecurities ceg false debit duration Proceeds from the sale of securities within the nuclear decommissioning trust fund that are classified as cash flows from... false false false false false false false false false false false terselabel false 1 false true false false 366500000 366.5 false false false 2 false true false false 421900000 421.9 false false false 3 false true false false 650700000 650.7 false false false xbrli:monetaryItemType monetary Proceeds from the sale of securities within the nuclear decommissioning trust fund that are classified as cash flows from investing activities and are reported on a gross basis. No authoritative reference available. false 45 Investments in joint ventures 4 us-gaap_PaymentsToAcquireInterestInJointVenture us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -201600000 -201.6 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 17 -Subparagraph b false 46 Issuances of loans receivable 4 ceg_IssuanceOfLoansReceivable ceg false credit duration The cash outflow for the issuance of loan receivable arising from the financing of goods and services. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -19000000 -19.0 false false false xbrli:monetaryItemType monetary The cash outflow for the issuance of loan receivable arising from the financing of goods and services. No authoritative reference available. false 47 Proceeds from sale of 49.99% membership interest in CENG 4 ceg_ProceedsFromPaymentsForMembershipInterestSale ceg false debit duration This element represents the cash proceeds from the sale of membership interest in joint venture. false false false false false false false false false false false terselabel false 1 false true false false 3528700000 3528.7 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary This element represents the cash proceeds from the sale of membership interest in joint venture. No authoritative reference available. false 48 Proceeds from sales of investments and other assets 4 us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 88300000 88.3 false false false 2 false true false false 446300000 446.3 false false false 3 false true false false 13900000 13.9 false false false xbrli:monetaryItemType monetary The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (trading, held-to-maturity, or available-for-sale) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 16 -Subparagraph a false 49 Contract and portfolio acquisitions 4 ceg_PaymentsForContractAndPortfolioAcquisitions ceg false credit duration The net cash outflow for acquired energy purchase and sale agreements. These agreements had contract prices that differed... false false false false false false false false false false true negated false 1 false true false false -2153700000 -2153.7 false false false 2 false false false false 0 0 false false false 3 false true false false -474200000 -474.2 false false false xbrli:monetaryItemType monetary The net cash outflow for acquired energy purchase and sale agreements. These agreements had contract prices that differed from market prices at closing, which resulted in cash payments to the counterparty at the acquisition of the agreements. No authoritative reference available. false 50 Decrease (increase) in restricted funds 4 us-gaap_IncreaseDecreaseInRestrictedCash us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 1003300000 1003.3 false false false 2 false true false false -942800000 -942.8 false false false 3 false true false false -109900000 -109.9 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) for the net change associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16, 17 false 51 Other 4 us-gaap_PaymentsForProceedsFromOtherInvestingActivities us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false 100000 0.1 false false false 2 false true false false 21700000 21.7 false false false 3 false true false false -45300000 -45.3 false false false xbrli:monetaryItemType monetary The net cash outflow (inflow) from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15 false 52 Net cash provided by (used in) investing activities 4 us-gaap_NetCashProvidedByUsedInInvestingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 675600000 675.6 false false false 2 false true false false -2742900000 -2742.9 false false false 3 false true false false -2286500000 -2286.5 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 53 Cash Flows From Financing Activities 3 us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 54 Net (maturity) issuance of short-term borrowings 4 us-gaap_ProceedsFromRepaymentsOfShortTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false -809700000 -809.7 false false false 2 false true false false 813700000 813.7 false false false 3 false true false false 14000000 14.0 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 false 55 Proceeds from issuance of common stock 4 us-gaap_ProceedsFromIssuanceOfCommonStock us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 33900000 33.9 false false false 2 false true false false 17600000 17.6 false false false 3 false true false false 65100000 65.1 false false false xbrli:monetaryItemType monetary The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph a false 56 Proceeds from issuance of long-term debt 4 us-gaap_ProceedsFromIssuanceOfLongTermDebt us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 136100000 136.1 false false false 2 false true false false 3211400000 3211.4 false false false 3 false true false false 698200000 698.2 false false false xbrli:monetaryItemType monetary The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 19 -Subparagraph b false 57 Common stock dividends paid 4 us-gaap_PaymentsOfDividendsCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -228000000 -228.0 false false false 2 false true false false -336300000 -336.3 false false false 3 false true false false -306000000 -306.0 false false false xbrli:monetaryItemType monetary The cash outflow from the distribution of an entity's earnings in the form of dividends to common shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 58 Reacquisition of common stock 4 us-gaap_PaymentsForRepurchaseOfCommonStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false false false false 0 0 false false false 2 false true false false -16200000 -16.2 false false false 3 false true false false -409500000 -409.5 false false false xbrli:monetaryItemType monetary The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 59 BGE preference stock dividends paid 4 us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -13200000 -13.2 false false false 2 false true false false -13200000 -13.2 false false false 3 false true false false -13200000 -13.2 false false false xbrli:monetaryItemType monetary The cash outflow for the return on capital for preferred shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a false 60 Proceeds from contract and portfolio acquisitions 4 ceg_ProceedsFromContractAndPortfolioAcquisitions ceg false debit duration The net cash inflow for acquired energy purchase and sale agreements. These agreements had contract prices that differed from... false false false false false false false false false false false terselabel false 1 false true false false 2263100000 2263.1 false false false 2 false false false false 0 0 false false false 3 false true false false 847800000 847.8 false false false xbrli:monetaryItemType monetary The net cash inflow for acquired energy purchase and sale agreements. These agreements had contract prices that differed from market prices at closing, which resulted in cash payments from the counterparty at the acquisition of the agreements. No authoritative reference available. false 61 Repayment of long-term debt 4 us-gaap_RepaymentsOfLongTermDebt us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -1986800000 -1986.8 false false false 2 false true false false -577400000 -577.4 false false false 3 false true false false -745300000 -745.3 false false false xbrli:monetaryItemType monetary The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph b false 62 Derivative contracts classified as financing activities 4 ceg_DerivativeContractsClassifiedAsFinancingActivityFinancingActivitiesImpact ceg false debit duration The amount of ongoing cash flows related to certain out-of-the-money acquired contracts that are derivatives and contain a... false false false false false false false false false false false terselabel false 1 false true false false -1138300000 -1138.3 false false false 2 false true false false 107200000 107.2 false false false 3 false true false false -32200000 -32.2 false false false xbrli:monetaryItemType monetary The amount of ongoing cash flows related to certain out-of-the-money acquired contracts that are derivatives and contain a financing element. As a result, the cash flows from these contracts are reclassified from cash provided by (used in) operating activities to cash provided by (used in) financing activities. No authoritative reference available. false 63 Debt and credit facility costs 4 us-gaap_PaymentsOfDebtIssuanceCosts us-gaap true credit duration No definition available. false false false false false false false false false false true negated false 1 false true false false -98400000 -98.4 false false false 2 false true false false -104800000 -104.8 false false false 3 false false false false 0 0 false false false xbrli:monetaryItemType monetary The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 95-13 false 64 Other 4 us-gaap_ProceedsFromPaymentsForOtherFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 12700000 12.7 false false false 2 false true false false 8300000 8.3 false false false 3 false true false false 33400000 33.4 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18, 19, 20 false 65 Net cash (used in) provided by financing activities 4 us-gaap_NetCashProvidedByUsedInFinancingActivities us-gaap true debit duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false -1828600000 -1828.6 false false false 2 false true false false 3110300000 3110.3 false false false 3 false true false false 152300000 152.3 false false false xbrli:monetaryItemType monetary The net cash inflow (outflow) from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 66 Net Increase (Decrease) in Cash and Cash Equivalents 3 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease us-gaap true na duration No definition available. false false false false false false false false false false false totallabel false 1 false true false false 3237800000 3237.8 false false false 2 false true false false -893700000 -893.7 false false false 3 false true false false -1193200000 -1193.2 false false false xbrli:monetaryItemType monetary The net change between the beginning and ending balance of cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 26 true 67 Cash and Cash Equivalents at Beginning of Year 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false true false false periodstartlabel false 1 false true false false 202200000 202.2 false false false 2 false true false false 1095900000 1095.9 false false false 3 false true false false 2289100000 2289.1 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 68 Cash and Cash Equivalents at End of Year 3 us-gaap_CashAndCashEquivalentsAtCarryingValue us-gaap true debit instant No definition available. false false false false false false false false false true false periodendlabel false 1 false true false false 3440000000 3440.0 false false false 2 false true false false 202200000 202.2 false false false 3 false true false false 1095900000 1095.9 false false false xbrli:monetaryItemType monetary Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 false 70 Cash paid during the year for: 4 ceg_CashPaidDuringTheYearAbstract ceg false na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 71 Interest (net of amounts capitalized) 5 us-gaap_InterestPaidNet us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 false true false false 369500000 369.5 false false false 2 false true false false 341400000 341.4 false false false 3 false true false false 291800000 291.8 false false false xbrli:monetaryItemType monetary The amount of cash paid during the current period for interest owed on money borrowed, net of interest capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -Subparagraph e false 72 Income taxes 5 us-gaap_IncomeTaxesPaidNet us-gaap true credit duration No definition available. false false false false false false false false false false false terselabel false 1 true true false false 57100000 57.1 false false false 2 true true false false 119200000 119.2 false false false 3 true true false false 282400000 282.4 false false false xbrli:monetaryItemType monetary The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. 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