10-K Filing

EXELON CORP CIK: 1109357 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0001109357-24-000053`
Period End Date	20231231
Filing Date	20240221
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	exc-20231231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 104 Income Statement 105 Cash Flow Statement 134 Stockholders Equity 51 Comprehensive Income 45

Balance Sheet 104 line items

Line Item	Tag	Value	Unit	Period
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$15.93B	USD	Point-in-time
Accumulated depreciation and amortization	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$17.25B	USD	Point-in-time
Common Stock, No Par Value	`CommonStockNoParValue`	-	USD	Point-in-time
Common Stock, No Par Value	`CommonStockNoParValue`	-	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	2.00B	shares	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	2.00B	shares	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	994.00M	shares	Point-in-time
Common stock, shares, outstanding (in shares)	`CommonStockSharesOutstanding`	999.00M	shares	Point-in-time
Treasury Stock, Common, Shares	`TreasuryStockCommonShares`	2.00M	shares	Point-in-time
Treasury Stock, Common, Shares	`TreasuryStockCommonShares`	2.00M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$407.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$672.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$445.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$432.00M	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$482.00M	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$566.00M	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$349.00M	USD	Point-in-time
Restricted cash and cash equivalents	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$321.00M	USD	Point-in-time
Customer accounts receivable	`AccountsReceivableGrossCurrent`	$2.54B	USD	Point-in-time
Customer accounts receivable	`AccountsReceivableGrossCurrent`	$2.66B	USD	Point-in-time
Customer allowance for credit losses	`AllowanceForDoubtfulAccountsReceivableCurrent`	$317.00M	USD	Point-in-time
Customer allowance for credit losses	`AllowanceForDoubtfulAccountsReceivableCurrent`	$327.00M	USD	Point-in-time
Customer accounts receivable, net	`AccountsReceivableNetCurrent`	$2.22B	USD	Point-in-time
Customer accounts receivable, net	`AccountsReceivableNetCurrent`	$2.34B	USD	Point-in-time
Other accounts receivable	`OtherReceivablesGrossCurrent`	$1.43B	USD	Point-in-time
Other accounts receivable	`OtherReceivablesGrossCurrent`	$1.10B	USD	Point-in-time
Other allowance for credit losses	`AllowanceForDoubtfulOtherReceivablesCurrent`	$82.00M	USD	Point-in-time
Other allowance for credit losses	`AllowanceForDoubtfulOtherReceivablesCurrent`	$82.00M	USD	Point-in-time
Other accounts receivable, net	`OtherReceivablesNetCurrent`	$1.34B	USD	Point-in-time
Other accounts receivable, net	`OtherReceivablesNetCurrent`	$1.02B	USD	Point-in-time
Fossil fuel	`EnergyRelatedInventoryNaturalGasInStorage`	$94.00M	USD	Point-in-time
Fossil fuel	`EnergyRelatedInventoryNaturalGasInStorage`	$208.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSuppliesNetOfReserves`	$547.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSuppliesNetOfReserves`	$707.00M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$1.64B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$2.21B	USD	Point-in-time
Other	`OtherAssetsCurrent`	$406.00M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$473.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$7.78B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$7.34B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$69.08B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$73.59B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$8.04B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$8.70B	USD	Point-in-time
Goodwill	`Goodwill`	$6.63B	USD	Point-in-time
Goodwill	`Goodwill`	$6.63B	USD	Point-in-time
Receivable related to Regulatory Agreement Units	`NontradeReceivablesNoncurrent`	$3.23B	USD	Point-in-time
Receivable related to Regulatory Agreement Units	`NontradeReceivablesNoncurrent`	$2.90B	USD	Point-in-time
Investments	`LongTermInvestments`	$232.00M	USD	Point-in-time
Investments	`LongTermInvestments`	$251.00M	USD	Point-in-time
Total deferred debits and other assets	`DeferredCostsAndOtherAssets`	$18.94B	USD	Point-in-time
Total deferred debits and other assets	`DeferredCostsAndOtherAssets`	$20.18B	USD	Point-in-time
Total assets	`Assets`	$101.55B	USD	Point-in-time
Total assets	`Assets`	$95.35B	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$2.52B	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$2.59B	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$1.40B	USD	Point-in-time
Long-term debt due within one year	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$1.80B	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$1.23B	USD	Point-in-time
Accrued expenses	`AccruedLiabilitiesCurrent`	$1.38B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$389.00M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$437.00M	USD	Point-in-time
Mark-to-market derivative liabilities	`DerivativeLiabilitiesCurrent`	$74.00M	USD	Point-in-time
Mark-to-market derivative liabilities	`DerivativeLiabilitiesCurrent`	$8.00M	USD	Point-in-time
Unamortized energy contract liabilities	`EnergyMarketingContractLiabilitiesCurrent`	$10.00M	USD	Point-in-time
Unamortized energy contract liabilities	`EnergyMarketingContractLiabilitiesCurrent`	$8.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$1.16B	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$968.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$10.61B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$9.59B	USD	Point-in-time
Deferred income taxes and unamortized investment tax credits	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$11.25B	USD	Point-in-time
Deferred income taxes and unamortized investment tax credits	`DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent`	$11.96B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$9.11B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$9.58B	USD	Point-in-time
Pension obligations	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$1.11B	USD	Point-in-time
Pension obligations	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$1.57B	USD	Point-in-time
Non-pension postretirement benefit obligations	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$527.00M	USD	Point-in-time
Non-pension postretirement benefit obligations	`OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent`	$507.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$269.00M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationsNoncurrent`	$267.00M	USD	Point-in-time
Mark-to-market derivative liabilities	`DerivativeLiabilitiesNoncurrent`	$106.00M	USD	Point-in-time
Mark-to-market derivative liabilities	`DerivativeLiabilitiesNoncurrent`	$83.00M	USD	Point-in-time
Unamortized energy contract liabilities	`EnergyMarketingContractLiabilitiesNoncurrent`	$27.00M	USD	Point-in-time
Unamortized energy contract liabilities	`EnergyMarketingContractLiabilitiesNoncurrent`	$35.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$1.97B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$2.09B	USD	Point-in-time
Total deferred credits and other liabilities	`DeferredCreditsAndOtherLiabilities`	$24.33B	USD	Point-in-time
Total deferred credits and other liabilities	`DeferredCreditsAndOtherLiabilities`	$26.12B	USD	Point-in-time
Total liabilities	`Liabilities`	$70.61B	USD	Point-in-time
Total liabilities	`Liabilities`	$75.79B	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock	`CommonStockValue`	$21.11B	USD	Point-in-time
Common stock	`CommonStockValue`	$20.91B	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$123.00M	USD	Point-in-time
Treasury stock, at cost	`TreasuryStockValue`	$123.00M	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$5.49B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$4.60B	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-638.00M	USD	Point-in-time
Accumulated other comprehensive loss, net	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-726.00M	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$25.75B	USD	Point-in-time
Total shareholders equity	`StockholdersEquity`	$24.74B	USD	Point-in-time
Total liabilities and member's equity	`LiabilitiesAndStockholdersEquity`	$101.55B	USD	Point-in-time
Total liabilities and member's equity	`LiabilitiesAndStockholdersEquity`	$95.35B	USD	Point-in-time

Income Statement 105 line items

Line Item	Tag	Value	Unit	Period
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$696.00M	USD	Annual
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$161.00M	USD	Annual
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$171.00M	USD	Annual
Total operating revenues	`Revenues`	$21.73B	USD	Annual
Total operating revenues	`Revenues`	$17.94B	USD	Annual
Total operating revenues	`Revenues`	$19.08B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.67B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.56B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.55B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.03B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.51B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.33B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.39B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.41B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.29B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$15.76B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$17.71B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$15.26B	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	$-2.00M	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	$10.00M	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	-	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$3.31B	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$4.02B	USD	Annual
Operating income (loss)	`OperatingIncomeLoss`	$2.68B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.70B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.42B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.26B	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$535.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$261.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$408.00M	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-1.32B	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-1.03B	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-912.00M	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.40B	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.70B	USD	Annual
Income (loss) before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.65B	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$374.00M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$38.00M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$349.00M	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$1.62B	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$2.33B	USD	Annual
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$2.05B	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$117.00M	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	Annual
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$213.00M	USD	Annual
Net income	`ProfitLoss`	$2.17B	USD	Annual
Net income	`ProfitLoss`	$2.33B	USD	Annual
Net income	`ProfitLoss`	$1.83B	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$123.00M	USD	Annual
Net income (loss) attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$1.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.33B	USD	Annual
Net income attributable to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$1.71B	USD	Annual
Net income attributable to common shareholders	`NetIncomeLossAvailableToCommonStockholdersBasic`	$2.17B	USD	Annual
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic`	$2.05B	USD	Annual
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic`	$2.33B	USD	Annual
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic	`NetIncomeLossFromContinuingOperationsAvailableToCommonShareholdersBasic`	$1.62B	USD	Annual
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	`NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic`	-	USD	Annual
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	`NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic`	$90.00M	USD	Annual
Net Income (Loss) from Discontinued Operations Available to Common Shareholders, Basic	`NetIncomeLossFromDiscontinuedOperationsAvailableToCommonShareholdersBasic`	$116.00M	USD	Annual
Prior service benefits reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$-4.00M	USD	Annual
Prior service benefits reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	$-1.00M	USD	Annual
Prior service benefits reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax`	-	USD	Annual
Actuarial losses reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-26.00M	USD	Annual
Actuarial losses reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-42.00M	USD	Annual
Actuarial losses reclassified to periodic benefit cost	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-223.00M	USD	Annual
Pension and non-pension postretirement benefit plans valuation adjustments	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$432.00M	USD	Annual
Pension and non-pension postretirement benefit plans valuation adjustments	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$46.00M	USD	Annual
Pension and non-pension postretirement benefit plans valuation adjustments	`OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax`	$-109.00M	USD	Annual
Unrealized (loss) gain on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$2.00M	USD	Annual
Unrealized (loss) gain on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-1.00M	USD	Annual
Unrealized (loss) gain on cash flow hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-5.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-88.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$89.00M	USD	Annual
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$650.00M	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.24B	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.26B	USD	Annual
Comprehensive income (loss)	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.48B	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$1.00M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$123.00M	USD	Annual
Comprehensive income attributable to noncontrolling interests	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$2.24B	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$2.26B	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$2.36B	USD	Annual
Basic Average Number of Shares Outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	979.00M	shares	Annual
Basic Average Number of Shares Outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	986.00M	shares	Annual
Basic Average Number of Shares Outstanding	`WeightedAverageNumberOfSharesOutstandingBasic`	996.00M	shares	Annual
Assumed Exercise and/or Distributions of Stock-Based Awards	`IncrementalCommonSharesAttributableToShareBasedPaymentArrangements`	1.00M	shares	Annual
Assumed Exercise and/or Distributions of Stock-Based Awards	`IncrementalCommonSharesAttributableToShareBasedPaymentArrangements`	1.00M	shares	Annual
Assumed Exercise and/or Distributions of Stock-Based Awards	`IncrementalCommonSharesAttributableToShareBasedPaymentArrangements`	1.00M	shares	Annual
Diluted Average Number of Shares Outstanding	`WeightedAverageNumberOfDilutedSharesOutstanding`	997.00M	shares	Annual
Diluted Average Number of Shares Outstanding	`WeightedAverageNumberOfDilutedSharesOutstanding`	987.00M	shares	Annual
Diluted Average Number of Shares Outstanding	`WeightedAverageNumberOfDilutedSharesOutstanding`	980.00M	shares	Annual
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$2.34	USD	Annual
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.65	USD	Annual
Income (Loss) from Continuing Operations, Per Basic Share	`IncomeLossFromContinuingOperationsPerBasicShare`	$2.08	USD	Annual
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.65	USD	Annual
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$2.08	USD	Annual
Income (Loss) from Continuing Operations, Per Diluted Share	`IncomeLossFromContinuingOperationsPerDilutedShare`	$2.34	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.12	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.09	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.09	USD	Annual
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.12	USD	Annual

Cash Flow Statement 134 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$2.17B	USD	Annual
Net income	`ProfitLoss`	$2.33B	USD	Annual
Net income	`ProfitLoss`	$1.83B	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$3.53B	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$3.51B	USD	Annual
Depreciation and amortization	`DepreciationAmortizationAndAccretionNet`	$7.57B	USD	Annual
Asset impairments	`ImpairmentOfLongLivedAssetsHeldForUse`	$48.00M	USD	Annual
Asset impairments	`ImpairmentOfLongLivedAssetsHeldForUse`	$552.00M	USD	Annual
Asset impairments	`ImpairmentOfLongLivedAssetsHeldForUse`	-	USD	Annual
Gain on sales of assets and businesses	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$8.00M	USD	Annual
Gain on sales of assets and businesses	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$201.00M	USD	Annual
Gain on sales of assets and businesses	`GainLossOnSalesOfAssetsAndAssetImpairmentCharges`	$10.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$255.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$18.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$319.00M	USD	Annual
Net fair value changes related to derivatives	`UnrealizedGainLossOnDerivatives`	$-22.00M	USD	Annual
Net fair value changes related to derivatives	`UnrealizedGainLossOnDerivatives`	$53.00M	USD	Annual
Net fair value changes related to derivatives	`UnrealizedGainLossOnDerivatives`	$568.00M	USD	Annual
Net realized and unrealized gains on NDT fund investments	`GainLossOnInvestments`	$-205.00M	USD	Annual
Net realized and unrealized gains on NDT fund investments	`GainLossOnInvestments`	$586.00M	USD	Annual
Net realized and unrealized gains on NDT fund investments	`GainLossOnInvestments`	-	USD	Annual
Net unrealized losses (gains) on equity investments	`DebtAndEquitySecuritiesUnrealizedGainLoss`	$-160.00M	USD	Annual
Net unrealized losses (gains) on equity investments	`DebtAndEquitySecuritiesUnrealizedGainLoss`	$-16.00M	USD	Annual
Net unrealized losses (gains) on equity investments	`DebtAndEquitySecuritiesUnrealizedGainLoss`	-	USD	Annual
Other non-cash operating activities	`OtherNoncashIncomeExpense`	$-370.00M	USD	Annual
Other non-cash operating activities	`OtherNoncashIncomeExpense`	$335.00M	USD	Annual
Other non-cash operating activities	`OtherNoncashIncomeExpense`	$200.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$37.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$703.00M	USD	Annual
Accounts receivable	`IncreaseDecreaseInReceivables`	$1.22B	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$121.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$141.00M	USD	Annual
Inventories	`IncreaseDecreaseInInventories`	$45.00M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-191.00M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$440.00M	USD	Annual
Accounts payable and accrued expenses	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$1.32B	USD	Annual
Option premiums paid, net	`ChangesInOptionPremiumsCollectedReceived`	$39.00M	USD	Annual
Option premiums paid, net	`ChangesInOptionPremiumsCollectedReceived`	-	USD	Annual
Option premiums paid, net	`ChangesInOptionPremiumsCollectedReceived`	$338.00M	USD	Annual
Collateral (paid) received, net	`IncreaseDecreaseCashCollateralFromCounterparties`	$-74.00M	USD	Annual
Collateral (paid) received, net	`IncreaseDecreaseCashCollateralFromCounterparties`	$-146.00M	USD	Annual
Collateral (paid) received, net	`IncreaseDecreaseCashCollateralFromCounterparties`	$1.25B	USD	Annual
Income taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$327.00M	USD	Annual
Income taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-4.00M	USD	Annual
Income taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$48.00M	USD	Annual
Regulatory assets and liabilities, net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$439.00M	USD	Annual
Regulatory assets and liabilities, net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$1.33B	USD	Annual
Regulatory assets and liabilities, net	`IncreaseDecreaseInRegulatoryAssetsAndLiabilities`	$634.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$129.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$616.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$665.00M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$905.00M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$188.00M	USD	Annual
Other assets and liabilities	`IncreaseDecreaseInOtherOperatingCapitalNet`	$3.78B	USD	Annual
Net cash flows provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$4.87B	USD	Annual
Net cash flows provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$4.70B	USD	Annual
Net cash flows provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$3.01B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$7.15B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$7.98B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$7.41B	USD	Annual
Proceeds from NDT fund sales	`ProceedsFromSaleAndMaturityOfOtherInvestments`	$488.00M	USD	Annual
Proceeds from NDT fund sales	`ProceedsFromSaleAndMaturityOfOtherInvestments`	-	USD	Annual
Proceeds from NDT fund sales	`ProceedsFromSaleAndMaturityOfOtherInvestments`	$6.53B	USD	Annual
Investment in NDT funds	`PaymentsToAcquireOtherInvestments`	-	USD	Annual
Investment in NDT funds	`PaymentsToAcquireOtherInvestments`	$516.00M	USD	Annual
Investment in NDT funds	`PaymentsToAcquireOtherInvestments`	$6.67B	USD	Annual
Collection of DPP	`ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables`	$169.00M	USD	Annual
Collection of DPP	`ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables`	$3.90B	USD	Annual
Collection of DPP	`ProceedsFromCollectionOfRetainedInterestInSecuritizedReceivables`	-	USD	Annual
Proceeds from sales of assets and businesses	`ProceedsFromSaleOfPropertyHeldForSale`	$25.00M	USD	Annual
Proceeds from sales of assets and businesses	`ProceedsFromSaleOfPropertyHeldForSale`	$877.00M	USD	Annual
Proceeds from sales of assets and businesses	`ProceedsFromSaleOfPropertyHeldForSale`	$16.00M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-8.00M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$-26.00M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	-	USD	Annual
Net cash flows used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-3.32B	USD	Annual
Net cash flows used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-6.99B	USD	Annual
Net cash flows used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-7.38B	USD	Annual
Changes in short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$269.00M	USD	Annual
Changes in short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-313.00M	USD	Annual
Changes in short-term borrowings	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$986.00M	USD	Annual
Proceeds from short-term borrowings with maturities greater than 90 days	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$1.30B	USD	Annual
Proceeds from short-term borrowings with maturities greater than 90 days	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$1.38B	USD	Annual
Proceeds from short-term borrowings with maturities greater than 90 days	`ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths`	$400.00M	USD	Annual
Repayments on short-term borrowings with maturities greater than 90 days	`RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$1.50B	USD	Annual
Repayments on short-term borrowings with maturities greater than 90 days	`RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$150.00M	USD	Annual
Repayments on short-term borrowings with maturities greater than 90 days	`RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths`	$350.00M	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$5.83B	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$3.48B	USD	Annual
Issuance of long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$6.31B	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$2.07B	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$1.71B	USD	Annual
Retirement of long-term debt	`RepaymentsOfLongTermDebt`	$1.64B	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	$140.00M	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	$563.00M	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$1.33B	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$1.43B	USD	Annual
Dividends paid on common stock	`PaymentsOfDividendsCommonStock`	$1.50B	USD	Annual
Acquisition of CENG noncontrolling interest	`PaymentsToMinorityShareholders`	-	USD	Annual
Acquisition of CENG noncontrolling interest	`PaymentsToMinorityShareholders`	-	USD	Annual
Acquisition of CENG noncontrolling interest	`PaymentsToMinorityShareholders`	$885.00M	USD	Annual
Proceeds from employee stock plans	`ProceedsFromStockPlans`	$80.00M	USD	Annual
Proceeds from employee stock plans	`ProceedsFromStockPlans`	$41.00M	USD	Annual
Proceeds from employee stock plans	`ProceedsFromStockPlans`	$36.00M	USD	Annual
Transfer of cash, restricted cash, and cash equivalents to Constellation	`TransferOfCashRestrictedCashAndCashEquivalentsToConstellation`	$-2.59B	USD	Annual
Transfer of cash, restricted cash, and cash equivalents to Constellation	`TransferOfCashRestrictedCashAndCashEquivalentsToConstellation`	-	USD	Annual
Transfer of cash, restricted cash, and cash equivalents to Constellation	`TransferOfCashRestrictedCashAndCashEquivalentsToConstellation`	-	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-102.00M	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-80.00M	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-114.00M	USD	Annual
Net cash flows provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.59B	USD	Annual
Net cash flows provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$758.00M	USD	Annual
Net cash flows provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$2.68B	USD	Annual
Increase (decrease) in cash, restricted cash, and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$453.00M	USD	Annual
Increase (decrease) in cash, restricted cash, and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$11.00M	USD	Annual
Increase (decrease) in cash, restricted cash, and cash equivalents	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect`	$-529.00M	USD	Annual
Cash, restricted cash, and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.09B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.62B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.17B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.10B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.09B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.62B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.17B	USD	Point-in-time
Cash, restricted cash, and cash equivalents at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.10B	USD	Point-in-time
(Decrease) increase in capital expenditures not paid	`ChangeinCapitalExpendituresIncurredButNotYetPaid`	$36.00M	USD	Annual
(Decrease) increase in capital expenditures not paid	`ChangeinCapitalExpendituresIncurredButNotYetPaid`	$16.00M	USD	Annual
(Decrease) increase in capital expenditures not paid	`ChangeinCapitalExpendituresIncurredButNotYetPaid`	$-215.00M	USD	Annual
Increase in DPP	`SupplementalDeferredPurchasePrice`	-	USD	Annual
Increase in DPP	`SupplementalDeferredPurchasePrice`	$348.00M	USD	Annual
Increase in DPP	`SupplementalDeferredPurchasePrice`	$3.65B	USD	Annual
(Decrease) increase in PP&E related to ARO update	`CostsIncurredAssetRetirementObligationIncurred`	$332.00M	USD	Annual
(Decrease) increase in PP&E related to ARO update	`CostsIncurredAssetRetirementObligationIncurred`	$-13.00M	USD	Annual
(Decrease) increase in PP&E related to ARO update	`CostsIncurredAssetRetirementObligationIncurred`	$642.00M	USD	Annual

Stockholders Equity 51 line items

Line Item	Tag	Value	Unit	Period
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.44	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.35	USD	Annual
Common Stock, Dividends, Per Share, Declared	`CommonStockDividendsPerShareDeclared`	$1.53	USD	Annual
Beginning Balance (in shares)	`SharesIssued`	995.83M	shares	Point-in-time
Beginning Balance (in shares)	`SharesIssued`	977.47M	shares	Point-in-time
Beginning Balance (in shares)	`SharesIssued`	1.00B	shares	Point-in-time
Beginning Balance (in shares)	`SharesIssued`	981.29M	shares	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$25.75B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$24.74B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$34.87B	USD	Point-in-time
Beginning Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$34.80B	USD	Point-in-time
Net income	`ProfitLoss`	$2.17B	USD	Annual
Net income	`ProfitLoss`	$2.33B	USD	Annual
Net income	`ProfitLoss`	$1.83B	USD	Annual
Long-Term Incentive Plan Activity (shares)	`StockIssuedDuringPeriodSharesShareBasedCompensationGross`	1.73M	shares	Annual
Long-Term Incentive Plan Activity (shares)	`StockIssuedDuringPeriodSharesShareBasedCompensationGross`	659,000.00	shares	Annual
Long-Term Incentive Plan Activity (shares)	`StockIssuedDuringPeriodSharesShareBasedCompensationGross`	561,000.00	shares	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$1.00M	USD	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$69.00M	USD	Annual
Long-Term Incentive Plan Activity	`StockIssuedDuringPeriodValueShareBasedCompensationGross`	$19.00M	USD	Annual
Employee stock purchase plan issuances, shares	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	983,000.00	shares	Annual
Employee stock purchase plan issuances, shares	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	2.09M	shares	Annual
Employee stock purchase plan issuances, shares	`StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans`	1.17M	shares	Annual
Employee stock purchase plan issuances	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$47.00M	USD	Annual
Employee stock purchase plan issuances	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$90.00M	USD	Annual
Employee stock purchase plan issuances	`StockIssuedDuringPeriodValueEmployeeStockPurchasePlan`	$41.00M	USD	Annual
Changes in equity of noncontrolling interests	`MinorityInterestPeriodIncreaseDecrease`	$-37.00M	USD	Annual
Changes in equity of noncontrolling interests	`MinorityInterestPeriodIncreaseDecrease`	$-7.00M	USD	Annual
Acquisition of CENG noncontrolling interest	`MinorityInterestDecreaseFromRedemptions`	$885.00M	USD	Annual
Distribution of Constellation	`DistributionOfConstellation`	$11.57B	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	$140.00M	USD	Annual
Proceeds from Issuance of Common Stock	`ProceedsFromIssuanceOfCommonStock`	$563.00M	USD	Annual
Stock Issued During Period, Shares, New Issues	`StockIssuedDuringPeriodSharesNewIssues`	3.59M	shares	Annual
Stock Issued During Period, Shares, New Issues	`StockIssuedDuringPeriodSharesNewIssues`	12.99M	shares	Annual
Deferred Tax Liability Adjustment - Noncontrolling Interest	`DeferredTaxLiabilityAdjustmentNoncontrollingInterest`	$-290.00M	USD	Annual
Common stock dividends	`DividendsCommonStockCash`	$1.44B	USD	Annual
Common stock dividends	`DividendsCommonStockCash`	$1.50B	USD	Annual
Common stock dividends	`DividendsCommonStockCash`	$1.34B	USD	Annual
Acquisition of CENG noncontrolling interest	`PaymentsToOtherNoncontrollingInterests`	-	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$-88.00M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$89.00M	USD	Annual
Other Comprehensive Income (Loss), Net of Tax	`OtherComprehensiveIncomeLossNetOfTax`	$650.00M	USD	Annual
Ending Balance (in shares)	`SharesIssued`	995.83M	shares	Point-in-time
Ending Balance (in shares)	`SharesIssued`	977.47M	shares	Point-in-time
Ending Balance (in shares)	`SharesIssued`	1.00B	shares	Point-in-time
Ending Balance (in shares)	`SharesIssued`	981.29M	shares	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$25.75B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$24.74B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$34.87B	USD	Point-in-time
Ending Balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$34.80B	USD	Point-in-time

Comprehensive Income 45 line items

Line Item	Tag	Value	Unit	Period
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$696.00M	USD	Annual
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$161.00M	USD	Annual
Revenues from alternative revenue programs	`TrueUpAdjustmentsToDecouplingMechanismsAndFormulaRate`	$171.00M	USD	Annual
Total operating revenues	`Revenues`	$21.73B	USD	Annual
Total operating revenues	`Revenues`	$17.94B	USD	Annual
Total operating revenues	`Revenues`	$19.08B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.67B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.56B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses`	$4.55B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.03B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.51B	USD	Annual
Depreciation and amortization	`CostOfGoodsAndServicesSoldDepreciationAndAmortization`	$3.33B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.39B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.41B	USD	Annual
Taxes other than income taxes	`TaxesExcludingIncomeAndExciseTaxes`	$1.29B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$15.76B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$17.71B	USD	Annual
Total operating expenses	`CostsAndExpenses`	$15.26B	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	$-2.00M	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	$10.00M	USD	Annual
Gain (loss) on sale of assets and businesses	`GainLossOnSaleOfOtherAssets`	-	USD	Annual
Operating income	`OperatingIncomeLoss`	$3.31B	USD	Annual
Operating income	`OperatingIncomeLoss`	$4.02B	USD	Annual
Operating income	`OperatingIncomeLoss`	$2.68B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.70B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.42B	USD	Annual
Interest expense, net	`InterestExpenseBorrowings`	$1.26B	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$535.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$261.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$408.00M	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-1.32B	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-1.03B	USD	Annual
Total other income and (deductions)	`NonoperatingIncomeExpense`	$-912.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.40B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$2.70B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.65B	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$374.00M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$38.00M	USD	Annual
Income taxes	`IncomeTaxExpenseBenefit`	$349.00M	USD	Annual
Net income	`ProfitLoss`	$2.17B	USD	Annual
Net income	`ProfitLoss`	$2.33B	USD	Annual
Net income	`ProfitLoss`	$1.83B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.24B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.26B	USD	Annual
Comprehensive income	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$2.48B	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.