10-Q Filing

FIRSTENERGY CORP CIK: 1031296 Q3 2023

Filing Information

Form Type	10-Q
Accession Number	`0001031296-23-000061`
Period End Date	20230930
Filing Date	20231026
Fiscal Year	2023
Fiscal Period	Q3
XBRL Instance	fe-20230930_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 106 Income Statement 145 Cash Flow Statement 88 Stockholders Equity 59 Comprehensive Income 43

Balance Sheet 106 line items

Line Item	Tag	Value	Unit	Period
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$137.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$85.00M	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`	$118.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$160.00M	USD	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$26.00M	USD	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	700.00M	shares	Point-in-time
Common stock, authorized (in shares)	`CommonStockSharesAuthorized`	700.00M	shares	Point-in-time
Restricted cash	`RestrictedCashCurrent`	$46.00M	USD	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	573.81M	shares	Point-in-time
Common stock, outstanding (in shares)	`CommonStockSharesOutstanding`	572.13M	shares	Point-in-time
Customers	`AccountsReceivableGrossCurrent`	$1.46B	USD	Point-in-time
Customers	`AccountsReceivableGrossCurrent`	$1.39B	USD	Point-in-time
Less Allowance for uncollectible customer receivables	`AllowanceForDoubtfulAccountsReceivableCurrent`	$137.00M	USD	Point-in-time
Less Allowance for uncollectible customer receivables	`AllowanceForDoubtfulAccountsReceivableCurrent`	$85.00M	USD	Point-in-time
Receivable	`AccountsReceivableNetCurrent`	$1.32B	USD	Point-in-time
Receivable	`AccountsReceivableNetCurrent`	$1.30B	USD	Point-in-time
Other, net of allowance for uncollectible accounts of $15 in 2023 and $11 in 2022	`OtherReceivables`	$253.00M	USD	Point-in-time
Other, net of allowance for uncollectible accounts of $15 in 2023 and $11 in 2022	`OtherReceivables`	$271.00M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryNet`	$481.00M	USD	Point-in-time
Materials and supplies, at average cost	`InventoryNet`	$421.00M	USD	Point-in-time
Prepaid taxes and other	`OtherAssetsCurrent`	$217.00M	USD	Point-in-time
Prepaid taxes and other	`OtherAssetsCurrent`	$322.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.52B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$2.42B	USD	Point-in-time
In service	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$49.30B	USD	Point-in-time
In service	`PropertyPlantAndEquipmentExcludingConstructionInProgress`	$47.85B	USD	Point-in-time
Less Accumulated provision for depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$13.85B	USD	Point-in-time
Less Accumulated provision for depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$13.26B	USD	Point-in-time
Property, plant and equipment in service net of accumulated provision for depreciation	`NetPlantExcludingConstructionWorkInProgress`	$35.45B	USD	Point-in-time
Property, plant and equipment in service net of accumulated provision for depreciation	`NetPlantExcludingConstructionWorkInProgress`	$34.59B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$1.69B	USD	Point-in-time
Construction work in progress	`ConstructionInProgressGross`	$2.23B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentNet`	$37.68B	USD	Point-in-time
Total property, plant and equipment	`PropertyPlantAndEquipmentNet`	$36.28B	USD	Point-in-time
Goodwill	`Goodwill`	$5.62B	USD	Point-in-time
Goodwill	`Goodwill`	$5.62B	USD	Point-in-time
Investments (Note 6)	`LongTermInvestments`	$626.00M	USD	Point-in-time
Investments (Note 6)	`LongTermInvestments`	$622.00M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$353.00M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$33.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$1.14B	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$676.00M	USD	Point-in-time
Total investments and other noncurrent assets	`DeferredChargesAndOtherAssetsNoncurrent`	$7.27B	USD	Point-in-time
Total investments and other noncurrent assets	`DeferredChargesAndOtherAssetsNoncurrent`	$7.41B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$47.47B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$46.11B	USD	Point-in-time
Currently payable long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$351.00M	USD	Point-in-time
Currently payable long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$1.30B	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$270.00M	USD	Point-in-time
Short-term borrowings	`ShortTermBorrowings`	$100.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$1.26B	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$1.50B	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$303.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$254.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$668.00M	USD	Point-in-time
Accrued taxes	`AccruedIncomeTaxesCurrent`	$657.00M	USD	Point-in-time
Accrued compensation and benefits	`AccruedEmployeeBenefitsCurrent`	$272.00M	USD	Point-in-time
Accrued compensation and benefits	`AccruedEmployeeBenefitsCurrent`	$252.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$223.00M	USD	Point-in-time
Customer deposits	`ContractWithCustomerLiabilityCurrent`	$225.00M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$235.00M	USD	Point-in-time
Dividends payable	`DividendsPayableCurrentAndNoncurrent`	$223.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$290.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$364.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$4.80B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$3.96B	USD	Point-in-time
Long-term debt and other long-term obligations	`LongTermDebtAndCapitalLeaseObligations`	$22.88B	USD	Point-in-time
Long-term debt and other long-term obligations	`LongTermDebtAndCapitalLeaseObligations`	$21.20B	USD	Point-in-time
Accumulated deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$4.20B	USD	Point-in-time
Accumulated deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$4.45B	USD	Point-in-time
Retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.51B	USD	Point-in-time
Retirement benefits	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$2.33B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.85B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.32B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$1.57B	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$1.92B	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$31.73B	USD	Point-in-time
Total noncurrent liabilities	`LiabilitiesNoncurrent`	$31.51B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$36.53B	USD	Point-in-time
TOTAL LIABILITIES	`Liabilities`	$35.47B	USD	Point-in-time
Common stock, $0.10 par value, authorized 700,000,000 shares - 573,814,823 and 572,130,932 shares outstanding as of September 30, 2023 and December 31, 2022, respectively.	`CommonStockValueOutstanding`	$57.00M	USD	Point-in-time
Common stock, $0.10 par value, authorized 700,000,000 shares - 573,814,823 and 572,130,932 shares outstanding as of September 30, 2023 and December 31, 2022, respectively.	`CommonStockValueOutstanding`	$57.00M	USD	Point-in-time
Other paid-in capital	`AdditionalPaidInCapitalCommonStock`	$11.32B	USD	Point-in-time
Other paid-in capital	`AdditionalPaidInCapitalCommonStock`	$10.71B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-16.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-14.00M	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-1.20B	USD	Point-in-time
Accumulated deficit	`RetainedEarningsAccumulatedDeficit`	$-272.00M	USD	Point-in-time
Total common stockholders equity	`StockholdersEquity`	$10.17B	USD	Point-in-time
Total common stockholders equity	`StockholdersEquity`	$10.47B	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$471.00M	USD	Point-in-time
Noncontrolling interest	`MinorityInterest`	$477.00M	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.64B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.97B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.95B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.73B	USD	Point-in-time
TOTAL EQUITY	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	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 EQUITY	`LiabilitiesAndStockholdersEquity`	$47.47B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$46.11B	USD	Point-in-time

Income Statement 145 line items

Line Item	Tag	Value	Unit	Period
Excise taxes collected	`ExciseTaxesCollected`	$114.00M	USD	1 Quarter
Excise taxes collected	`ExciseTaxesCollected`	$305.00M	USD	3 Qtrs
Excise taxes collected	`ExciseTaxesCollected`	$315.00M	USD	3 Qtrs
Excise taxes collected	`ExciseTaxesCollected`	$111.00M	USD	1 Quarter
Income tax benefit	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$-21.00M	USD	3 Qtrs
Income tax benefit	`DiscontinuedOperationTaxEffectOfDiscontinuedOperation`	$-21.00M	USD	1 Quarter
Total revenues	`Revenues`	$9.28B	USD	3 Qtrs
Total revenues	`Revenues`	$3.49B	USD	1 Quarter
Total revenues	`Revenues`	$9.72B	USD	3 Qtrs
Total revenues	`Revenues`	$3.48B	USD	1 Quarter
Fuel	`FuelCosts`	$209.00M	USD	1 Quarter
Fuel	`FuelCosts`	$439.00M	USD	3 Qtrs
Fuel	`FuelCosts`	$166.00M	USD	1 Quarter
Fuel	`FuelCosts`	$539.00M	USD	3 Qtrs
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$3.17B	USD	3 Qtrs
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$1.11B	USD	1 Quarter
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$2.79B	USD	3 Qtrs
Purchased power	`UtilitiesOperatingExpensePurchasedPower`	$1.16B	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$2.83B	USD	3 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$2.70B	USD	3 Qtrs
Other operating expenses	`OtherCostAndExpenseOperating`	$967.00M	USD	1 Quarter
Other operating expenses	`OtherCostAndExpenseOperating`	$1.11B	USD	1 Quarter
Provision for depreciation	`Depreciation`	$366.00M	USD	1 Quarter
Provision for depreciation	`Depreciation`	$332.00M	USD	1 Quarter
Provision for depreciation	`Depreciation`	$1.02B	USD	3 Qtrs
Provision for depreciation	`Depreciation`	$1.09B	USD	3 Qtrs
Deferral of regulatory assets, net	`DeferralOfRegulatoryAssetsNet`	$-253.00M	USD	3 Qtrs
Deferral of regulatory assets, net	`DeferralOfRegulatoryAssetsNet`	$-252.00M	USD	3 Qtrs
Deferral of regulatory assets, net	`DeferralOfRegulatoryAssetsNet`	$-86.00M	USD	1 Quarter
Deferral of regulatory assets, net	`DeferralOfRegulatoryAssetsNet`	$-140.00M	USD	1 Quarter
General taxes	`UtilitiesOperatingExpenseTaxes`	$295.00M	USD	1 Quarter
General taxes	`UtilitiesOperatingExpenseTaxes`	$307.00M	USD	1 Quarter
General taxes	`UtilitiesOperatingExpenseTaxes`	$881.00M	USD	3 Qtrs
General taxes	`UtilitiesOperatingExpenseTaxes`	$851.00M	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.97B	USD	1 Quarter
Total operating expenses	`CostsAndExpenses`	$7.77B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$8.03B	USD	3 Qtrs
Total operating expenses	`CostsAndExpenses`	$2.82B	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$1.51B	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$666.00M	USD	1 Quarter
OPERATING INCOME	`OperatingIncomeLoss`	$1.70B	USD	3 Qtrs
OPERATING INCOME	`OperatingIncomeLoss`	$505.00M	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	$-36.00M	USD	3 Qtrs
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	-	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	$1.00M	USD	1 Quarter
Debt redemption costs (Note 6)	`GainsLossesOnExtinguishmentOfDebt`	$-155.00M	USD	3 Qtrs
Equity method investment earnings (Note 1)	`IncomeLossFromEquityMethodInvestments`	$134.00M	USD	3 Qtrs
Equity method investment earnings (Note 1)	`IncomeLossFromEquityMethodInvestments`	$57.00M	USD	1 Quarter
Equity method investment earnings (Note 1)	`IncomeLossFromEquityMethodInvestments`	$134.00M	USD	3 Qtrs
Equity method investment earnings (Note 1)	`IncomeLossFromEquityMethodInvestments`	$43.00M	USD	1 Quarter
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$300.00M	USD	3 Qtrs
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$111.00M	USD	1 Quarter
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$24.00M	USD	1 Quarter
Miscellaneous income, net	`OtherNonoperatingIncomeExpense`	$102.00M	USD	3 Qtrs
Pension and OPEB mark-to-market adjustment (Note 4)	`DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease`	-	USD	1 Quarter
Pension and OPEB mark-to-market adjustment (Note 4)	`DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease`	-	USD	1 Quarter
Pension and OPEB mark-to-market adjustment (Note 4)	`DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease`	-	USD	3 Qtrs
Pension and OPEB mark-to-market adjustment (Note 4)	`DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecrease`	$59.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$248.00M	USD	1 Quarter
Interest expense	`InterestCostsIncurred`	$828.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$788.00M	USD	3 Qtrs
Interest expense	`InterestCostsIncurred`	$289.00M	USD	1 Quarter
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$59.00M	USD	3 Qtrs
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$26.00M	USD	1 Quarter
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$69.00M	USD	3 Qtrs
Capitalized financing costs	`InterestCostsCapitalizedAdjustment`	$23.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-196.00M	USD	1 Quarter
Total other expense	`NonoperatingIncomeExpense`	$-500.00M	USD	3 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-450.00M	USD	3 Qtrs
Total other expense	`NonoperatingIncomeExpense`	$-56.00M	USD	1 Quarter
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.20B	USD	3 Qtrs
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$449.00M	USD	1 Quarter
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.06B	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$193.00M	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$29.00M	USD	1 Quarter
INCOME TAXES	`IncomeTaxExpenseBenefit`	$237.00M	USD	3 Qtrs
INCOME TAXES	`IncomeTaxExpenseBenefit`	$105.00M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$824.00M	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$441.00M	USD	1 Quarter
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$1.00B	USD	3 Qtrs
INCOME FROM CONTINUING OPERATIONS	`IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest`	$344.00M	USD	1 Quarter
Discontinued operations (Note 1)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Discontinued operations (Note 1)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	3 Qtrs
Discontinued operations (Note 1)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-21.00M	USD	1 Quarter
Discontinued operations (Note 1)	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-21.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$310.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$824.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$288.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$984.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$420.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$192.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$344.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$254.00M	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$20.00M	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.00M	USD	1 Quarter
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$15.00M	USD	3 Qtrs
Income attributable to noncontrolling interest (continuing operations)	`NetIncomeLossAttributableToNoncontrollingInterest`	$57.00M	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
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$927.00M	USD	3 Qtrs
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$400.00M	USD	1 Quarter
Earnings from continuing operations	`IncomeLossFromContinuingOperations`	$334.00M	USD	1 Quarter
Earnings from continuing operations	`IncomeLossFromContinuingOperations`	$421.00M	USD	1 Quarter
Earnings from continuing operations	`IncomeLossFromContinuingOperations`	$809.00M	USD	3 Qtrs
Earnings from continuing operations	`IncomeLossFromContinuingOperations`	$948.00M	USD	3 Qtrs
Earnings from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	1 Quarter
Earnings from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	-	USD	3 Qtrs
Earnings from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-21.00M	USD	1 Quarter
Earnings from discontinued operations	`IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity`	$-21.00M	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
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$927.00M	USD	3 Qtrs
EARNINGS ATTRIBUTABLE TO FIRSTENERGY CORP.	`NetIncomeLoss`	$400.00M	USD	1 Quarter
Basic - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$1.66	USD	3 Qtrs
Basic - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerBasicShare`	$0.74	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`	-	USD	1 Quarter
Basic - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.04	USD	3 Qtrs
Basic - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare`	$-0.04	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.58	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.42	USD	3 Qtrs
Basic (in dollars per share)	`EarningsPerShareBasic`	$0.70	USD	1 Quarter
Basic (in dollars per share)	`EarningsPerShareBasic`	$1.62	USD	3 Qtrs
Diluted - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.65	USD	3 Qtrs
Diluted - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.58	USD	1 Quarter
Diluted - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$1.41	USD	3 Qtrs
Diluted - continuing operations (in dollars per share)	`IncomeLossFromContinuingOperationsPerDilutedShare`	$0.73	USD	1 Quarter
Diluted - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.04	USD	3 Qtrs
Diluted - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	1 Quarter
Diluted - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	-	USD	3 Qtrs
Diluted - discontinued operations (in dollars per share)	`IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare`	$-0.04	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.41	USD	3 Qtrs
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.69	USD	1 Quarter
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$1.61	USD	3 Qtrs
Diluted (in dollars per share)	`EarningsPerShareDiluted`	$0.58	USD	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	571.00M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	571.00M	shares	1 Quarter
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	573.00M	shares	3 Qtrs
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	573.00M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	572.00M	shares	1 Quarter
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	574.00M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	572.00M	shares	3 Qtrs
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	574.00M	shares	1 Quarter

Cash Flow Statement 88 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$310.00M	USD	1 Quarter
Net income	`ProfitLoss`	$824.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$288.00M	USD	1 Quarter
Net income	`ProfitLoss`	$984.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$420.00M	USD	1 Quarter
Net income	`ProfitLoss`	$192.00M	USD	1 Quarter
Net income	`ProfitLoss`	$344.00M	USD	1 Quarter
Net income	`ProfitLoss`	$254.00M	USD	1 Quarter
Depreciation, amortization and impairments	`DepreciationDepletionAmortizationAndImpairments`	$893.00M	USD	3 Qtrs
Depreciation, amortization and impairments	`DepreciationDepletionAmortizationAndImpairments`	$1.04B	USD	3 Qtrs
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$157.00M	USD	3 Qtrs
Deferred income taxes and investment tax credits, net	`DeferredIncomeTaxesAndTaxCredits`	$221.00M	USD	3 Qtrs
Retirement benefits, net of payments	`PensionAndOtherPostretirementBenefitExpense`	$-283.00M	USD	3 Qtrs
Retirement benefits, net of payments	`PensionAndOtherPostretirementBenefitExpense`	$-74.00M	USD	3 Qtrs
Pension trust contribution	`PensionContributions`	-	USD	3 Qtrs
Pension trust contribution	`PensionContributions`	$750.00M	USD	3 Qtrs
Pension and OPEB mark-to-market adjustment	`DefinedBenefitPlanPlanAssetsPeriodIncreaseDecreaseIncludingDiscontinuedOperations`	$-59.00M	USD	3 Qtrs
Pension and OPEB mark-to-market adjustment	`DefinedBenefitPlanPlanAssetsPeriodIncreaseDecreaseIncludingDiscontinuedOperations`	-	USD	3 Qtrs
Transmission revenue collections, net	`TransmissionRevenueCollectionNet`	$-89.00M	USD	3 Qtrs
Transmission revenue collections, net	`TransmissionRevenueCollectionNet`	$93.00M	USD	3 Qtrs
Gain on sale of Yards Creek	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	$-21.00M	USD	3 Qtrs
Gain on sale of Yards Creek	`DisposalGroupNotDiscontinuedOperationGainLossOnDisposal`	-	USD	3 Qtrs
Receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$2.00M	USD	3 Qtrs
Receivables	`IncreaseDecreaseInAccountsAndOtherReceivables`	$167.00M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInInventories`	$60.00M	USD	3 Qtrs
Materials and supplies	`IncreaseDecreaseInInventories`	$101.00M	USD	3 Qtrs
Prepaid taxes and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$46.00M	USD	3 Qtrs
Prepaid taxes and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$66.00M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$182.00M	USD	3 Qtrs
Accounts payable	`IncreaseDecreaseInAccountsPayableTrade`	$-241.00M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-147.00M	USD	3 Qtrs
Accrued taxes	`IncreaseDecreaseInAccruedIncomeTaxesPayable`	$-135.00M	USD	3 Qtrs
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$49.00M	USD	3 Qtrs
Accrued interest	`IncreaseDecreaseInInterestPayableNet`	$-27.00M	USD	3 Qtrs
Accrued compensation and benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-82.00M	USD	3 Qtrs
Accrued compensation and benefits	`IncreaseDecreaseInEmployeeRelatedLiabilities`	$-46.00M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$3.00M	USD	3 Qtrs
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$55.00M	USD	3 Qtrs
Collateral, net	`IncreaseDecreaseInCollateral`	$240.00M	USD	3 Qtrs
Collateral, net	`IncreaseDecreaseInCollateral`	$-216.00M	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$76.00M	USD	3 Qtrs
Other	`OtherOperatingActivitiesCashFlowStatement`	$24.00M	USD	3 Qtrs
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$429.00M	USD	3 Qtrs
Net cash provided from operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.84B	USD	3 Qtrs
Capital investments	`PaymentsToAcquireProductiveAssets`	$2.27B	USD	3 Qtrs
Capital investments	`PaymentsToAcquireProductiveAssets`	$1.85B	USD	3 Qtrs
Capital investments	`PaymentsToAcquireProductiveAssets`	$848.00M	USD	1 Quarter
Capital investments	`PaymentsToAcquireProductiveAssets`	$666.00M	USD	1 Quarter
Sales of investment securities held in trusts	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$28.00M	USD	3 Qtrs
Sales of investment securities held in trusts	`ProceedsFromSaleOfAvailableForSaleSecuritiesDebt`	$31.00M	USD	3 Qtrs
Purchases of investment securities held in trusts	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$37.00M	USD	3 Qtrs
Purchases of investment securities held in trusts	`PaymentsToAcquireAvailableForSaleSecuritiesDebt`	$40.00M	USD	3 Qtrs
Asset removal costs	`PaymentsForRemovalCosts`	$190.00M	USD	3 Qtrs
Asset removal costs	`PaymentsForRemovalCosts`	$151.00M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$8.00M	USD	3 Qtrs
Other	`PaymentsForProceedsFromOtherInvestingActivities`	$-9.00M	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.00B	USD	3 Qtrs
Net cash used for investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.47B	USD	3 Qtrs
Long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$3.15B	USD	3 Qtrs
Long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$300.00M	USD	3 Qtrs
Short-term borrowings, net	`ProceedsFromShortTermDebt`	-	USD	3 Qtrs
Short-term borrowings, net	`ProceedsFromShortTermDebt`	$170.00M	USD	3 Qtrs
Long-term debt	`RepaymentsOfLongTermDebt`	$2.90B	USD	3 Qtrs
Long-term debt	`RepaymentsOfLongTermDebt`	$537.00M	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`	$63.00M	USD	3 Qtrs
Distributions to FET minority interest	`PaymentsOfDistributionsToAffiliates`	$15.00M	USD	3 Qtrs
Capital contributions from FET minority interest	`ProceedsFromContributionsFromAffiliates`	$9.00M	USD	3 Qtrs
Capital contributions from FET minority interest	`ProceedsFromContributionsFromAffiliates`	-	USD	3 Qtrs
Common stock dividend payments	`PaymentsOfDividendsCommonStock`	$667.00M	USD	3 Qtrs
Common stock dividend payments	`PaymentsOfDividendsCommonStock`	$670.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-140.00M	USD	3 Qtrs
Other	`ProceedsFromPaymentsForOtherFinancingActivities`	$-68.00M	USD	3 Qtrs
Net cash provided from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.07B	USD	3 Qtrs
Net cash provided from (used for) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.98B	USD	3 Qtrs
Net change in cash, cash equivalents, and restricted cash	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-62.00M	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`	$144.00M	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`	$1.51B	USD	Point-in-time
Cash, cash equivalents, and restricted cash at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$206.00M	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$144.00M	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`	$1.51B	USD	Point-in-time
Cash, cash equivalents, and restricted cash at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$206.00M	USD	Point-in-time
Accrued capital investments	`CapitalExpendituresIncurredButNotYetPaid`	$212.00M	USD	3 Qtrs
Accrued capital investments	`CapitalExpendituresIncurredButNotYetPaid`	$133.00M	USD	3 Qtrs

Stockholders Equity 59 line items

Line Item	Tag	Value	Unit	Period
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	Point-in-time
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	Point-in-time
Dividends declared (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$0.39	USD	Point-in-time
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`	$0.41	USD	Point-in-time
Beginning balance, (in shares)	`CommonStockSharesOutstanding`	573.81M	shares	Point-in-time
Beginning balance, (in shares)	`CommonStockSharesOutstanding`	572.13M	shares	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.64B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.97B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.95B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.73B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	USD	Point-in-time
Net income	`ProfitLoss`	$310.00M	USD	1 Quarter
Net income	`ProfitLoss`	$824.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$288.00M	USD	1 Quarter
Net income	`ProfitLoss`	$984.00M	USD	3 Qtrs
Net income	`ProfitLoss`	$420.00M	USD	1 Quarter
Net income	`ProfitLoss`	$192.00M	USD	1 Quarter
Net income	`ProfitLoss`	$344.00M	USD	1 Quarter
Net income	`ProfitLoss`	$254.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$2.00M	USD	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	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`	$22.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$24.00M	USD	1 Quarter
Stock Investment Plan and share-based benefit plans	`StockIssuedDuringPeriodValueStockInvestmentAndEmployeeBenefitPlan`	$19.00M	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`	$459.00M	USD	1 Quarter
Cash dividends declared on common stock	`DividendsCommonStockCash`	$223.00M	USD	1 Quarter
Distributions to FET minority interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$15.00M	USD	1 Quarter
Distributions to FET minority interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$36.00M	USD	1 Quarter
Distributions to FET minority interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$10.00M	USD	1 Quarter
Distributions to FET minority interest	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$17.00M	USD	1 Quarter
Capital contribution from FET minority interest	`NoncontrollingInterestIncreaseFromContributionsOfNoncontrollingInterestHolders`	$-9.00M	USD	1 Quarter
Consolidated tax benefit allocation	`AdjustmentsToAdditionalPaidInCapitalConsolidatedTaxBenefitAllocation`	-	USD	1 Quarter
FET minority interest sale, net of transaction costs	`NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest`	$2.34B	USD	1 Quarter
Other	`StockholdersEquityOther`	$4.00M	USD	1 Quarter
Ending balance (in shares)	`CommonStockSharesOutstanding`	573.81M	shares	Point-in-time
Ending balance (in shares)	`CommonStockSharesOutstanding`	572.13M	shares	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.64B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.97B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.31B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$11.24B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.95B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.76B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$10.73B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.68B	USD	Point-in-time

Comprehensive Income 43 line items

Line Item	Tag	Value	Unit	Period
NET INCOME	`ProfitLoss`	$310.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$824.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$288.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$984.00M	USD	3 Qtrs
NET INCOME	`ProfitLoss`	$420.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$192.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$344.00M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$254.00M	USD	1 Quarter
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$5.00M	USD	3 Qtrs
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$6.00M	USD	3 Qtrs
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$2.00M	USD	1 Quarter
Pension and OPEB prior service costs	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax`	$2.00M	USD	1 Quarter
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	-	USD	1 Quarter
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	-	USD	1 Quarter
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	$2.00M	USD	3 Qtrs
Amortized losses on derivative hedges	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTax`	$8.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-3.00M	USD	3 Qtrs
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$-2.00M	USD	1 Quarter
Other comprehensive income (loss)	`OtherComprehensiveIncomeLossBeforeTax`	$2.00M	USD	3 Qtrs
Income tax benefits on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.00M	USD	1 Quarter
Income tax benefits on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.00M	USD	1 Quarter
Income tax benefits on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	$-1.00M	USD	3 Qtrs
Income tax benefits on other comprehensive income (loss)	`OtherComprehensiveIncomeLossTax`	-	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	3 Qtrs
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$4.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
Other comprehensive income (loss), net of tax	`OtherComprehensiveIncomeLossNetOfTax`	$-1.00M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$826.00M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$419.00M	USD	1 Quarter
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$982.00M	USD	3 Qtrs
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$343.00M	USD	1 Quarter
Comprehensive income attributable to noncontrolling interest	`ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest`	$57.00M	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`	$20.00M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$925.00M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$811.00M	USD	3 Qtrs
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$333.00M	USD	1 Quarter
COMPREHENSIVE INCOME ATTRIBUTABLE TO FIRSTENERGY CORP.	`ComprehensiveIncomeNetOfTax`	$399.00M	USD	1 Quarter

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