10-Q Filing

FIRSTENERGY CORP CIK: 1031296 Q3 2022

Filing Information

Form Type	10-Q
Accession Number	`0001031296-22-000069`
Period End Date	20220930
Filing Date	20221025
Fiscal Year	2022
Fiscal Period	Q3
XBRL Instance	fe-20220930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 102 Income Statement 134 Cash Flow Statement 90 Stockholders Equity 55 Comprehensive Income 44

Balance Sheet 102 line items

Line Item	Tag	Value	Unit	Period
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$159.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$136.00M	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Common stock, par value (in dollars per share)	`CommonStockParOrStatedValuePerShare`	$0.10	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$1.46B	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$251.00M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	700.00M	shares	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$49.00M	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$26.00M	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	700.00M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	571.75M	shares	Point-in-time
Common stock, shares outstanding (in shares)	`CommonStockSharesOutstanding`	570.26M	shares	Point-in-time
Customers	`AccountsReceivableGrossCurrent`	$1.32B	USD	Point-in-time
Customers	`AccountsReceivableGrossCurrent`	$1.19B	USD	Point-in-time
Less Allowance for uncollectible customer receivables	`AllowanceForDoubtfulAccountsReceivableCurrent`	$159.00M	USD	Point-in-time
Less Allowance for uncollectible customer receivables	`AllowanceForDoubtfulAccountsReceivableCurrent`	$136.00M	USD	Point-in-time
Customers	`AccountsReceivableNetCurrent`	$1.03B	USD	Point-in-time
Customers	`AccountsReceivableNetCurrent`	$1.18B	USD	Point-in-time
Other, net of allowance for uncollectible accounts of $10 in 2022 and 2021	`OtherReceivables`	$264.00M	USD	Point-in-time
Other, net of allowance for uncollectible accounts of $10 in 2022 and 2021	`OtherReceivables`	$246.00M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryNet`	$361.00M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryNet`	$260.00M	USD	Point-in-time
Prepaid taxes and other	`OtherAssetsCurrent`	$187.00M	USD	Point-in-time
Prepaid taxes and other	`OtherAssetsCurrent`	$228.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.31B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$3.24B	USD	Point-in-time
In service	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$46.00B	USD	Point-in-time
In service	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$46.92B	USD	Point-in-time
Less Accumulated provision for depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$13.07B	USD	Point-in-time
Less Accumulated provision for depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$12.67B	USD	Point-in-time
Property, plant and equipment in service net of accumulated provision for depreciation	`NetPlantExcludingConstructionWorkInProgress`	$33.33B	USD	Point-in-time
Property, plant and equipment in service net of accumulated provision for depreciation	`NetPlantExcludingConstructionWorkInProgress`	$33.84B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$1.73B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$1.41B	USD	Point-in-time
Total net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$35.57B	USD	Point-in-time
Total net property, plant and equipment	`PropertyPlantAndEquipmentNet`	$34.74B	USD	Point-in-time
Goodwill	`Goodwill`	$5.62B	USD	Point-in-time
Goodwill	`Goodwill`	$5.62B	USD	Point-in-time
Investments (Note 6)	`LongTermInvestments`	$655.00M	USD	Point-in-time
Investments (Note 6)	`LongTermInvestments`	$621.00M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$14.00M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$71.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$1.11B	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$714.00M	USD	Point-in-time
Total deferred charges and other assets	`DeferredChargesAndOtherAssetsNoncurrent`	$6.97B	USD	Point-in-time
Total deferred charges and other assets	`DeferredChargesAndOtherAssetsNoncurrent`	$7.45B	USD	Point-in-time
Total assets	`Assets`	$45.43B	USD	Point-in-time
Total assets	`Assets`	$44.85B	USD	Point-in-time
Currently payable long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$353.00M	USD	Point-in-time
Currently payable long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$1.61B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$1.12B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$943.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$283.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$255.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$647.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$643.00M	USD	Point-in-time
Accrued compensation and benefits	`AccruedEmployeeBenefitsCurrent`	$313.00M	USD	Point-in-time
Accrued compensation and benefits	`AccruedEmployeeBenefitsCurrent`	$255.00M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$223.00M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$222.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$402.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$639.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.49B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$4.42B	USD	Point-in-time
Common stock	`CommonStockValueOutstanding`	$57.00M	USD	Point-in-time
Common stock	`CommonStockValueOutstanding`	$57.00M	USD	Point-in-time
Other paid-in capital	`AdditionalPaidInCapitalCommonStock`	$10.24B	USD	Point-in-time
Other paid-in capital	`AdditionalPaidInCapitalCommonStock`	$11.53B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-15.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-13.00M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-796.00M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.60B	USD	Point-in-time
Total common stockholders equity	`StockholdersEquity`	$8.68B	USD	Point-in-time
Total common stockholders equity	`StockholdersEquity`	$10.77B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$464.00M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	-	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.48B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.36B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.43B	USD	Point-in-time
Total equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.24B	USD	Point-in-time
Long-term debt and other long-term obligations	`LongTermDebtAndCapitalLeaseObligations`	$22.25B	USD	Point-in-time
Long-term debt and other long-term obligations	`LongTermDebtAndCapitalLeaseObligations`	$20.91B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$30.92B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$32.14B	USD	Point-in-time
Accumulated deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$3.43B	USD	Point-in-time
Accumulated deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$3.44B	USD	Point-in-time
Retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$2.67B	USD	Point-in-time
Retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$2.50B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.98B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$2.12B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$1.31B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$1.86B	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$9.21B	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$10.09B	USD	Point-in-time
COMMITMENTS, GUARANTEES AND CONTINGENCIES (Note 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
COMMITMENTS, GUARANTEES AND CONTINGENCIES (Note 8)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total liabilities and capitalization	`LiabilitiesAndStockholdersEquity`	$45.43B	USD	Point-in-time
Total liabilities and capitalization	`LiabilitiesAndStockholdersEquity`	$44.85B	USD	Point-in-time

Income Statement 134 line items

Line Item	Tag	Value	Unit	Period
Excise taxes collected	`ExciseTaxesCollected`	$305.00M	USD	3 Qtrs
Excise taxes collected	`ExciseTaxesCollected`	$103.00M	USD	1 Quarter
Excise taxes collected	`ExciseTaxesCollected`	$111.00M	USD	1 Quarter
Excise taxes collected	`ExciseTaxesCollected`	$283.00M	USD	3 Qtrs
Income tax benefit	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$-47.00M	USD	1 Quarter
Income tax benefit	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$-47.00M	USD	3 Qtrs
Revenues	`Revenues`	$3.48B	USD	1 Quarter
Revenues	`Revenues`	$9.28B	USD	3 Qtrs
Revenues	`Revenues`	$8.47B	USD	3 Qtrs
Revenues	`Revenues`	$3.12B	USD	1 Quarter
Fuel	`FuelCosts`	$209.00M	USD	1 Quarter
Fuel	`FuelCosts`	$132.00M	USD	1 Quarter
Fuel	`FuelCosts`	$539.00M	USD	3 Qtrs
Fuel	`FuelCosts`	$362.00M	USD	3 Qtrs
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$874.00M	USD	1 Quarter
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$2.79B	USD	3 Qtrs
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$1.11B	USD	1 Quarter
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$2.21B	USD	3 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$2.83B	USD	3 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$1.11B	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$2.33B	USD	3 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$856.00M	USD	1 Quarter
Provision for depreciation	`Depreciation`	$1.02B	USD	3 Qtrs
Provision for depreciation	`Depreciation`	$326.00M	USD	1 Quarter
Provision for depreciation	`Depreciation`	$972.00M	USD	3 Qtrs
Provision for depreciation	`Depreciation`	$332.00M	USD	1 Quarter
Amortization (deferral) of regulatory assets, net	`AmortizationDeferralOfRegulatoryAsset`	$30.00M	USD	1 Quarter
Amortization (deferral) of regulatory assets, net	`AmortizationDeferralOfRegulatoryAsset`	$-86.00M	USD	1 Quarter
Amortization (deferral) of regulatory assets, net	`AmortizationDeferralOfRegulatoryAsset`	$171.00M	USD	3 Qtrs
Amortization (deferral) of regulatory assets, net	`AmortizationDeferralOfRegulatoryAsset`	$-252.00M	USD	3 Qtrs
General taxes	`UtilitiesOperatingExpenseTaxes`	$275.00M	USD	1 Quarter
General taxes	`UtilitiesOperatingExpenseTaxes`	$295.00M	USD	1 Quarter
General taxes	`UtilitiesOperatingExpenseTaxes`	$812.00M	USD	3 Qtrs
General taxes	`UtilitiesOperatingExpenseTaxes`	$851.00M	USD	3 Qtrs
DPA penalty (Note 8)	`GainLossRelatedToLitigationSettlement`	-	USD	3 Qtrs
DPA penalty (Note 8)	`GainLossRelatedToLitigationSettlement`	-	USD	1 Quarter
DPA penalty (Note 8)	`GainLossRelatedToLitigationSettlement`	$-230.00M	USD	3 Qtrs
DPA penalty (Note 8)	`GainLossRelatedToLitigationSettlement`	-	USD	1 Quarter
Gain on sale of Yards Creek (Note 9)	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	3 Qtrs
Gain on sale of Yards Creek (Note 9)	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	1 Quarter
Gain on sale of Yards Creek (Note 9)	`GainLossOnSaleOfPropertyPlantEquipment`	$109.00M	USD	3 Qtrs
Gain on sale of Yards Creek (Note 9)	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$6.97B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.49B	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$7.77B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.97B	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$1.50B	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$505.00M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$1.51B	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$631.00M	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	$1.00M	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	$-155.00M	USD	3 Qtrs
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	-	USD	3 Qtrs
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$379.00M	USD	3 Qtrs
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$168.00M	USD	1 Quarter
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$136.00M	USD	1 Quarter
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$434.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$788.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$283.00M	USD	1 Quarter
Interest expense	`InterestCostsIncurred`	$855.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$248.00M	USD	1 Quarter
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$23.00M	USD	1 Quarter
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$54.00M	USD	3 Qtrs
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$59.00M	USD	3 Qtrs
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$20.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-450.00M	USD	3 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-127.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-422.00M	USD	3 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-56.00M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$504.00M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.06B	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.08B	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$449.00M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$271.00M	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$105.00M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$88.00M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$237.00M	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$824.00M	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$416.00M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$809.00M	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$344.00M	USD	1 Quarter
Discontinued operations (Note 3)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Discontinued operations (Note 3)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$47.00M	USD	1 Quarter
Discontinued operations (Note 3)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$47.00M	USD	3 Qtrs
Discontinued operations (Note 3)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$192.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$824.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$58.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$344.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$288.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$856.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$463.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$335.00M	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.00M	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$15.00M	USD	3 Qtrs
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$463.00M	USD	1 Quarter
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$856.00M	USD	3 Qtrs
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$334.00M	USD	1 Quarter
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$809.00M	USD	3 Qtrs
Basic - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.48	USD	3 Qtrs
Basic - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.76	USD	1 Quarter
Basic - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.58	USD	1 Quarter
Basic - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.42	USD	3 Qtrs
Basic - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	3 Qtrs
Basic - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.09	USD	1 Quarter
Basic - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$0.09	USD	3 Qtrs
Basic - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	-	USD	1 Quarter
Basic - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareBasic`	$1.42	USD	3 Qtrs
Basic - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareBasic`	$0.85	USD	1 Quarter
Basic - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareBasic`	$1.57	USD	3 Qtrs
Basic - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareBasic`	$0.58	USD	1 Quarter
Diluted - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.48	USD	3 Qtrs
Diluted - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.41	USD	3 Qtrs
Diluted - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.76	USD	1 Quarter
Diluted - Continuing Operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.58	USD	1 Quarter
Diluted - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.09	USD	3 Qtrs
Diluted - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$0.09	USD	1 Quarter
Diluted - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Diluted - Discontinued Operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Diluted - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareDiluted`	$1.41	USD	3 Qtrs
Diluted - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareDiluted`	$0.58	USD	1 Quarter
Diluted - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareDiluted`	$0.85	USD	1 Quarter
Diluted - Earnings Per Share Attributable to FirstEnergy Corp. (in dollars per share)	`EarningsPerShareDiluted`	$1.57	USD	3 Qtrs
Basic, in shares	`WeightedAverageNumberOfSharesOutstandingBasic`	571.00M	shares	1 Quarter
Basic, in shares	`WeightedAverageNumberOfSharesOutstandingBasic`	544.00M	shares	3 Qtrs
Basic, in shares	`WeightedAverageNumberOfSharesOutstandingBasic`	571.00M	shares	3 Qtrs
Basic, in shares	`WeightedAverageNumberOfSharesOutstandingBasic`	544.00M	shares	1 Quarter
Diluted, in shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	545.00M	shares	1 Quarter
Diluted, in shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	545.00M	shares	3 Qtrs
Diluted, in shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	572.00M	shares	1 Quarter
Diluted, in shares	`WeightedAverageNumberOfDilutedSharesOutstanding`	572.00M	shares	3 Qtrs

Cash Flow Statement 90 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$192.00M	USD	1 Quarter
Net income	`ProfitLoss`	$824.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$58.00M	USD	1 Quarter
Net income	`ProfitLoss`	$344.00M	USD	1 Quarter
Net income	`ProfitLoss`	$288.00M	USD	1 Quarter
Net income	`ProfitLoss`	$856.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$463.00M	USD	1 Quarter
Net income	`ProfitLoss`	$335.00M	USD	1 Quarter
Depreciation, amortization and impairments	`DepreciationDepletionAndAmortization`	$1.04B	USD	3 Qtrs
Depreciation, amortization and impairments	`DepreciationDepletionAndAmortization`	$1.22B	USD	3 Qtrs
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$221.00M	USD	3 Qtrs
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$255.00M	USD	3 Qtrs
Retirement benefits, net of payments	`PensionAndOtherPostretirementBenefitExpense`	$-310.00M	USD	3 Qtrs
Retirement benefits, net of payments	`PensionAndOtherPostretirementBenefitExpense`	$-283.00M	USD	3 Qtrs
Transmission revenue collections, net	`TransmissionRevenueCollectionNet`	$-89.00M	USD	3 Qtrs
Transmission revenue collections, net	`TransmissionRevenueCollectionNet`	$-120.00M	USD	3 Qtrs
Gain on sale of Yards Creek	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	3 Qtrs
Gain on sale of Yards Creek	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	1 Quarter
Gain on sale of Yards Creek	`GainLossOnSaleOfPropertyPlantEquipment`	$109.00M	USD	3 Qtrs
Gain on sale of Yards Creek	`GainLossOnSaleOfPropertyPlantEquipment`	-	USD	1 Quarter
Gain on disposal, net of tax (Note 10)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	$47.00M	USD	3 Qtrs
Gain on disposal, net of tax (Note 10)	`IncomeLossFromDiscontinuedOperationsNetOfTax`	-	USD	3 Qtrs
Receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$-76.00M	USD	3 Qtrs
Receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$167.00M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInInventories`	$101.00M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInInventories`	$-73.00M	USD	3 Qtrs
Prepaid taxes and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$34.00M	USD	3 Qtrs
Prepaid taxes and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$46.00M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$49.00M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$182.00M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-124.00M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-135.00M	USD	3 Qtrs
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-27.00M	USD	3 Qtrs
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$9.00M	USD	3 Qtrs
Accrued compensation and benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-2.00M	USD	3 Qtrs
Accrued compensation and benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-82.00M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-19.00M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$3.00M	USD	3 Qtrs
Collateral, net	`IncreaseDecreaseInCollateral`	$101.00M	USD	3 Qtrs
Collateral, net	`IncreaseDecreaseInCollateral`	$240.00M	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$-9.00M	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$76.00M	USD	3 Qtrs
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.84B	USD	3 Qtrs
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$2.10B	USD	3 Qtrs
Long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$300.00M	USD	3 Qtrs
Long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.50B	USD	3 Qtrs
Long-term debt	`RepaymentsOfLongTermDebt`	$58.00M	USD	3 Qtrs
Long-term debt	`RepaymentsOfLongTermDebt`	$2.90B	USD	3 Qtrs
Short-term borrowings, net	`RepaymentsOfShortTermDebt`	$2.20B	USD	3 Qtrs
Short-term borrowings, net	`RepaymentsOfShortTermDebt`	-	USD	3 Qtrs
Discounts (premiums) on debt issuances and redemptions, net	`PaymentsOfDebtExtinguishmentCosts`	$137.00M	USD	3 Qtrs
Discounts (premiums) on debt issuances and redemptions, net	`ProceedsOnDebtIssuancesAndRedemptionsNet`	$29.00M	USD	3 Qtrs
Proceeds from FET minority interest sale, net of transaction costs	`ProceedsFromSaleOfInterestInPartnershipUnit`	-	USD	3 Qtrs
Proceeds from FET minority interest sale, net of transaction costs	`ProceedsFromSaleOfInterestInPartnershipUnit`	$2.35B	USD	3 Qtrs
Distributions to FET minority interest	`PaymentsOfDistributionsToAffiliates`	$15.00M	USD	3 Qtrs
Distributions to FET minority interest	`PaymentsOfDistributionsToAffiliates`	-	USD	3 Qtrs
Capital contributions from FET minority interest	`ProceedsFromContributionsFromAffiliates`	-	USD	3 Qtrs
Capital contributions from FET minority interest	`ProceedsFromContributionsFromAffiliates`	$9.00M	USD	3 Qtrs
Common stock dividend payments	`PaymentsOfDividendsCommonStock`	$667.00M	USD	3 Qtrs
Common stock dividend payments	`PaymentsOfDividendsCommonStock`	$636.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-45.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-3.00M	USD	3 Qtrs
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.07B	USD	3 Qtrs
Net cash used for financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.41B	USD	3 Qtrs
Property additions	`PaymentsToAcquireProductiveAssets`	$641.00M	USD	1 Quarter
Property additions	`PaymentsToAcquireProductiveAssets`	$1.79B	USD	3 Qtrs
Property additions	`PaymentsToAcquireProductiveAssets`	$542.00M	USD	1 Quarter
Property additions	`PaymentsToAcquireProductiveAssets`	$1.77B	USD	3 Qtrs
Proceeds from sale of Yards Creek	`ProceedsFromSaleOfProductiveAssets`	-	USD	3 Qtrs
Proceeds from sale of Yards Creek	`ProceedsFromSaleOfProductiveAssets`	$155.00M	USD	3 Qtrs
Sales of investment securities held in trusts	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$29.00M	USD	3 Qtrs
Sales of investment securities held in trusts	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$31.00M	USD	3 Qtrs
Purchases of investment securities held in trusts	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$40.00M	USD	3 Qtrs
Purchases of investment securities held in trusts	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$37.00M	USD	3 Qtrs
Asset removal costs	`PaymentsForRemovalCosts`	$151.00M	USD	3 Qtrs
Asset removal costs	`PaymentsForRemovalCosts`	$178.00M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$12.00M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$55.00M	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.00B	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.81B	USD	3 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-1.12B	USD	3 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-1.23B	USD	3 Qtrs
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.51B	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$277.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$684.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.80B	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.51B	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$277.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$684.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$1.80B	USD	Point-in-time

Stockholders Equity 55 line items

Line Item	Tag	Value	Unit	Period
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	1 Quarter
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	1 Quarter
Beginning balance, (in shares)	`CommonStockSharesOutstanding`	571.75M	shares	Point-in-time
Beginning balance, (in shares)	`CommonStockSharesOutstanding`	570.26M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.48B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.36B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.43B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.24B	USD	Point-in-time
Net income	`ProfitLoss`	$192.00M	USD	1 Quarter
Net income	`ProfitLoss`	$824.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$58.00M	USD	1 Quarter
Net income	`ProfitLoss`	$344.00M	USD	1 Quarter
Net income	`ProfitLoss`	$288.00M	USD	1 Quarter
Net income	`ProfitLoss`	$856.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$463.00M	USD	1 Quarter
Net income	`ProfitLoss`	$335.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.00M	USD	3 Qtrs
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.00M	USD	3 Qtrs
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive loss, net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$20.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$33.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$13.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$14.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$2.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$25.00M	USD	1 Quarter
Cash dividends declared on common stock	`DividendsCommonStockCash`	$446.00M	USD	1 Quarter
Cash dividends declared on common stock	`DividendsCommonStockCash`	$223.00M	USD	1 Quarter
Cash dividends declared on common stock	`DividendsCommonStockCash`	$425.00M	USD	1 Quarter
Cash dividends declared on common stock	`DividendsCommonStockCash`	$212.00M	USD	1 Quarter
Distributions to FET minority interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$15.00M	USD	1 Quarter
Capital contributions from FET minority interest	`NoncontrollingInterestIncreaseFromContributionsOfNoncontrollingInterestHolders`	$-9.00M	USD	1 Quarter
Consolidated tax benefit allocation	`AdjustmentsToAdditionalPaidInCapitalConsolidatedTaxBenefitAllocation`	-	USD	1 Quarter
Other	`StockholdersEquityOther`	$4.00M	USD	1 Quarter
FET minority interest sale, net of transaction costs (Note 1)	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$2.34B	USD	1 Quarter
Ending balance (in shares)	`CommonStockSharesOutstanding`	571.75M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	570.26M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.48B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.36B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.43B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$7.24B	USD	Point-in-time

Comprehensive Income 44 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$192.00M	USD	1 Quarter
Net income	`ProfitLoss`	$824.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$58.00M	USD	1 Quarter
Net income	`ProfitLoss`	$344.00M	USD	1 Quarter
Net income	`ProfitLoss`	$288.00M	USD	1 Quarter
Net income	`ProfitLoss`	$856.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$463.00M	USD	1 Quarter
Net income	`ProfitLoss`	$335.00M	USD	1 Quarter
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$2.00M	USD	1 Quarter
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$3.00M	USD	1 Quarter
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$10.00M	USD	3 Qtrs
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$6.00M	USD	3 Qtrs
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	$1.00M	USD	3 Qtrs
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	-	USD	1 Quarter
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	$8.00M	USD	3 Qtrs
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	-	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$2.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-9.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-3.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-2.00M	USD	1 Quarter
Income taxes (benefits) on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	-	USD	3 Qtrs
Income taxes (benefits) on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.00M	USD	1 Quarter
Income taxes (benefits) on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.00M	USD	1 Quarter
Income taxes (benefits) on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-3.00M	USD	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.00M	USD	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-6.00M	USD	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.00M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$850.00M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$343.00M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$461.00M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$826.00M	USD	3 Qtrs
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$15.00M	USD	3 Qtrs
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$10.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	1 Quarter
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	-	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$811.00M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$850.00M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$461.00M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$333.00M	USD	1 Quarter

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