$AEP
AMERICAN ELECTRIC POWER CO INC Stock $aep

$aep Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-K Financial Statement

#000000490423000011 Filed on February 23, 2023

Income Statement

Concept	2022 Q4	2022
Revenue	$4.881B	$19.64B
YoY Change	20.18%	16.96%
Cost Of Revenue	$1.921B	$7.098B
YoY Change	43.33%	29.85%
Gross Profit	$2.960B	$12.54B
YoY Change	8.78%	10.74%
Gross Profit Margin	60.65%	63.86%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$868.9M	$3.073B
YoY Change	16.6%	13.09%
% of Gross Profit	29.35%	24.5%
Operating Expenses	$2.276B	$16.16B
YoY Change	12.36%	20.75%
Operating Profit	$684.0M	$3.483B
YoY Change	-1.63%	2.09%
Interest Expense	-$355.9M	$1.396B
YoY Change	32.9%	16.43%
% of Operating Profit	-52.03%	40.09%
Other Income/Expense, Net	$64.20M	$11.60M
YoY Change	73.98%	-71.98%
Pretax Income	$268.4M	$2.310B
YoY Change	-40.72%	-11.18%
Income Tax	-$85.30M	$5.400M
% Of Pretax Income	-31.78%	0.23%
Net Earnings	$384.3M	$2.306B
YoY Change	-28.69%	-7.33%
Net Earnings / Revenue	7.87%	11.74%
Basic Earnings Per Share		$4.51
Diluted Earnings Per Share	$0.75	$4.49
COMMON SHARES
Basic Shares Outstanding	513.9M shares	511.8M shares
Diluted Shares Outstanding		513.5M shares

Balance Sheet

Concept	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$696.9M	$696.9M
YoY Change	11.72%	11.72%
Cash & Equivalents	$509.4M	$509.4M
Short-Term Investments	$187.5M	$187.5M
Other Short-Term Assets	$5.038B	$5.038B
YoY Change	16.15%	16.15%
Inventory	$1.302B	$1.302B
Prepaid Expenses
Receivables	$2.570B	$2.233B
Other Receivables	$149.0M	$149.0M
Total Short-Term Assets	$9.419B	$9.419B
YoY Change	20.61%	20.61%
LONG-TERM ASSETS
Property, Plant & Equipment	$71.28B	$71.93B
YoY Change	8.0%	8.03%
Goodwill	$52.50M
YoY Change	0.0%
Intangibles
YoY Change
Long-Term Investments	$1.277B
YoY Change	-11.8%
Other Assets	$3.718B	$12.07B
YoY Change	-15.47%	-8.75%
Total Long-Term Assets	$12.77B	$84.05B
YoY Change	-7.87%	5.25%
TOTAL ASSETS
Total Short-Term Assets	$9.419B	$9.419B
Total Long-Term Assets	$12.77B	$84.05B
Total Assets	$93.47B	$93.47B
YoY Change	6.62%	6.62%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.613B	$2.613B
YoY Change	27.18%	27.18%
Accrued Expenses	$441.0M	$441.0M
YoY Change	18.93%	18.93%
Deferred Revenue
YoY Change
Short-Term Debt	$4.112B	$4.112B
YoY Change	57.31%	57.31%
Long-Term Debt Due	$1.996B	$2.054B
YoY Change	-7.31%	-16.47%
Total Short-Term Liabilities	$14.57B	$14.57B
YoY Change	17.23%	17.23%
LONG-TERM LIABILITIES
Long-Term Debt	$33.63B	$33.79B
YoY Change	7.43%	7.29%
Other Long-Term Liabilities	$599.1M	$12.45B
YoY Change	-0.37%	-2.91%
Total Long-Term Liabilities	$54.73B	$46.24B
YoY Change	4.22%	4.34%
TOTAL LIABILITIES
Total Short-Term Liabilities	$14.57B	$14.57B
Total Long-Term Liabilities	$54.73B	$46.24B
Total Liabilities	$69.30B	$69.53B
YoY Change	6.71%	6.65%
SHAREHOLDERS EQUITY
Retained Earnings	$12.35B
YoY Change	5.82%
Common Stock	$3.413B
YoY Change	0.13%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares	11.23M shares
Shareholders Equity	$23.89B	$23.94B
YoY Change
Total Liabilities & Shareholders Equity	$93.47B	$93.47B
YoY Change	6.62%	6.62%

Cashflow Statement

Concept	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$384.3M	$2.306B
YoY Change	-28.69%	-7.33%
Depreciation, Depletion And Amortization	$868.9M	$3.073B
YoY Change	16.6%	13.09%
Cash From Operating Activities	$554.8M	$5.288B
YoY Change	-36.0%	37.71%
INVESTING ACTIVITIES
Capital Expenditures	$1.932B	$6.772B
YoY Change	-219.71%	-217.49%
Acquisitions
YoY Change
Other Investing Activities	$2.700M	-$50.30M
YoY Change	-96.87%	-66.71%
Cash From Investing Activities	-$1.929B	-$7.752B
YoY Change	26.29%	20.48%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$826.5M
YoY Change		37.64%
Debt Paid & Issued, Net		$2.345B
YoY Change		-21.54%
Cash From Financing Activities	1.354B	$2.569B
YoY Change	-530.43%	-1.47%
NET CHANGE
Cash From Operating Activities	554.8M	$5.288B
Cash From Investing Activities	-1.929B	-$7.752B
Cash From Financing Activities	1.354B	$2.569B
Net Change In Cash	-20.80M	$105.1M
YoY Change	-97.87%	702.29%
FREE CASH FLOW
Cash From Operating Activities	$554.8M	$5.288B
Capital Expenditures	$1.932B	$6.772B
Free Cash Flow	-$1.377B	-$1.484B
YoY Change	-155.51%	-115.46%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000004904
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	1-3525
CY2022	dei	Entity Registrant Name EntityRegistrantName	AMERICAN ELECTRIC POWER CO INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NY
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-4922640
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 Riverside Plaza,
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Columbus,
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	OH
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	43215-2373
CY2022	dei	City Area Code CityAreaCode	(614)
CY2022	dei	Local Phone Number LocalPhoneNumber	716-1000
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	49300311811	usd
CY2022Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	513866081	shares
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2022	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022	dei	Auditor Location AuditorLocation	Columbus, Ohio
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CY2022	us-gaap	Stockholders Equity Other StockholdersEquityOther	56400000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	2305600000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-101100000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	24122400000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.17
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.00
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.84
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	509400000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	403400000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	47100000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	48000000.0	usd
CY2022Q4	us-gaap	Short Term Investments ShortTermInvestments	187500000	usd
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	220400000	usd
CY2022Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1081500000	usd
CY2021Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	720900000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	287900000	usd
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	204400000	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	1207400000	usd
CY2021Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	1038000000	usd
CY2022Q4	us-gaap	Other Receivables OtherReceivables	49600000	usd
CY2021Q4	us-gaap	Other Receivables OtherReceivables	33900000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	56100000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	55600000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2570300000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1941600000	usd
CY2022Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	413200000	usd
CY2021Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	307900000	usd
CY2022Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	888900000	usd
CY2021Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	681300000	usd
CY2022Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	340400000	usd
CY2021Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	194400000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	99400000	usd
CY2021Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	121500000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1286800000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	647800000	usd
CY2022Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	81900000	usd
CY2021Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	193400000	usd
CY2022Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	2823500000	usd
CY2021Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	2919700000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	170300000	usd
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	129800000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	9418700000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	7809200000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	24597700000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	23088100000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	32312900000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	29911100000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	26077200000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	24440000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	6142100000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	5682900000	usd
CY2022Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	4664100000	usd
CY2021Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	3684300000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	93794000000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	86806400000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	22511100000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	20805100000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	71282900000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	66001300000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4281200000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4142300000	usd
CY2022Q4	us-gaap	Securitized Regulatory Transition Assets Noncurrent SecuritizedRegulatoryTransitionAssetsNoncurrent	446000000.0	usd
CY2021Q4	us-gaap	Securitized Regulatory Transition Assets Noncurrent SecuritizedRegulatoryTransitionAssetsNoncurrent	552800000	usd
CY2022Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3341200000	usd
CY2021Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3867000000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	52500000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	52500000	usd
CY2022Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	284100000	usd
CY2021Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	267000000.0	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	645000000.0	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	578300000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3717800000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4398300000	usd
CY2022Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	12767800000	usd
CY2021Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	13858200000	usd
CY2022Q4	us-gaap	Assets Assets	93469400000	usd
CY2021Q4	us-gaap	Assets Assets	87668700000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2613000000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2054600000	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	750000000.0	usd
CY2021Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	750000000.0	usd
CY2022Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	3362200000	usd
CY2021Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	1864000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	4112200000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2614000000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	1996400000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2153800000	usd
CY2022Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	145200000	usd
CY2021Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	75400000	usd
CY2022Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	370000000.0	usd
CY2021Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	321600000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1672800000	usd
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	1586400000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	327600000	usd
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	273200000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	113400000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	97600000	usd
CY2022Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	1955700000	usd
CY2021Q4	us-gaap	Liabilities Of Disposal Group Including Discontinued Operation Current LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent	1880900000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1261100000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1369200000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	14567400000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	12426700000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	33626200000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	31300700000	usd
CY2022Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	345300000	usd
CY2021Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	230300000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8493300000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8202500000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	7999600000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	8686300000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	2860800000	usd
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	2676200000	usd
CY2022Q4	aep	Employee Benefits And Pension Obligations EmployeeBenefitsAndPensionObligations	257300000	usd
CY2021Q4	aep	Employee Benefits And Pension Obligations EmployeeBenefitsAndPensionObligations	328400000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	552100000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	492800000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	599100000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	601300000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	54733700000	usd
CY2021Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	52518500000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	69301100000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	64945200000	usd
CY2022Q4	aep	Rate Matters RateMatters		usd
CY2021Q4	aep	Rate Matters RateMatters		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	aep	Mezzanine Equity MezzanineEquity	45900000	usd
CY2021Q4	aep	Mezzanine Equity MezzanineEquity	43300000	usd
CY2022Q4	aep	Total Mezzanine Equity TotalMezzanineEquity	45900000	usd
CY2021Q4	aep	Total Mezzanine Equity TotalMezzanineEquity	43300000	usd
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	6.50
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	6.50
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	525099321	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	524416175	shares
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	11233240	shares
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20204160	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	3413100000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	3408700000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	8051000000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	7172600000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	12345600000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	11667100000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	83700000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	184800000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	23893400000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	22433200000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	229000000.0	usd
CY2021Q4	us-gaap	Minority Interest MinorityInterest	247000000.0	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	24122400000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	22680200000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	93469400000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	87668700000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	2305600000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	2488100000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	2196700000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	3202800000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2825700000	usd
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2682800000	usd
CY2022	aep	Lease Amortization LeaseAmortization	0	usd
CY2021	aep	Lease Amortization LeaseAmortization	135400000	usd
CY2020	aep	Lease Amortization LeaseAmortization	136500000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-137200000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	107600000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	196100000	usd
CY2022	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	48800000	usd
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	11600000	usd
CY2020	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	0	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	133700000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	139700000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	148100000	usd
CY2022	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-15500000	usd
CY2021	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-112300000	usd
CY2020	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-66500000	usd
CY2022	aep	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	82900000	usd
CY2021	aep	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	85300000	usd
CY2020	aep	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	87500000	usd
CY2022	us-gaap	Pension Contributions PensionContributions	0	usd
CY2021	us-gaap	Pension Contributions PensionContributions	0	usd
CY2020	us-gaap	Pension Contributions PensionContributions	110300000	usd
CY2022	us-gaap	Amortization Of Deferred Property Taxes AmortizationOfDeferredPropertyTaxes	-41200000	usd
CY2021	us-gaap	Amortization Of Deferred Property Taxes AmortizationOfDeferredPropertyTaxes	-68000000.0	usd
CY2020	us-gaap	Amortization Of Deferred Property Taxes AmortizationOfDeferredPropertyTaxes	-43300000	usd
CY2022	aep	Fuel Over Under Recovery Net FuelOverUnderRecoveryNet	319200000	usd
CY2021	aep	Fuel Over Under Recovery Net FuelOverUnderRecoveryNet	1647900000	usd
CY2020	aep	Fuel Over Under Recovery Net FuelOverUnderRecoveryNet	31800000	usd
CY2022	aep	Establishment Of Regulatory Asset EstablishmentOfRegulatoryAsset	-37000000.0	usd
CY2021	aep	Establishment Of Regulatory Asset EstablishmentOfRegulatoryAsset	0	usd
CY2020	aep	Establishment Of Regulatory Asset EstablishmentOfRegulatoryAsset	0	usd
CY2022	aep	Change In Regulatory Assets ChangeInRegulatoryAssets	46700000	usd
CY2021	aep	Change In Regulatory Assets ChangeInRegulatoryAssets	238900000	usd
CY2020	aep	Change In Regulatory Assets ChangeInRegulatoryAssets	337900000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	187700000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	126600000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	151000000.0	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	337800000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	206400000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-54500000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	681700000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	119700000	usd
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	129300000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	313900000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-300200000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	142900000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	489200000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	200600000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-35300000	usd
CY2022	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	105400000	usd
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	218700000	usd
CY2020	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	20100000	usd
CY2022	aep	Operating Lease Payments Rockport OperatingLeasePaymentsRockport	0	usd
CY2021	aep	Operating Lease Payments Rockport OperatingLeasePaymentsRockport	147700000	usd
CY2020	aep	Operating Lease Payments Rockport OperatingLeasePaymentsRockport	147700000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-109000000.0	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	151300000	usd
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-34300000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	54300000	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-212200000	usd
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-255500000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5288000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3839900000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3832900000	usd
CY2022	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	6671700000	usd
CY2021	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	5659600000	usd
CY2020	us-gaap	Payments For Construction In Process PaymentsForConstructionInProcess	6246300000	usd
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2784200000	usd
CY2021	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1955100000	usd
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1678800000	usd
CY2022	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2743800000	usd
CY2021	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1901400000	usd
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1644300000	usd
CY2022	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	100700000	usd
CY2021	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	104500000	usd
CY2020	us-gaap	Payments For Nuclear Fuel PaymentsForNuclearFuel	69700000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	-218000000.0	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	-118900000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	71100000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-50300000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-32200000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-45500000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7751800000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6433900000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6233900000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	826500000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	600500000	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	155000000.0	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4649700000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	6486300000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5626100000	usd
CY2022	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	833900000	usd
CY2021	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	1393300000	usd
CY2020	us-gaap	Proceeds From Short Term Debt Maturing In More Than Three Months ProceedsFromShortTermDebtMaturingInMoreThanThreeMonths	1396500000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	1650400000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-487300000	usd
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-448400000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2345400000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2989300000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1339800000	usd
CY2022	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	986100000	usd
CY2021	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	771300000	usd
CY2020	us-gaap	Repayments Of Short Term Debt Maturing In More Than Three Months RepaymentsOfShortTermDebtMaturingInMoreThanThreeMonths	1307100000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	309500000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	64000000.0	usd
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	61700000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1645200000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1519500000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1424900000	usd
CY2022	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	0	usd
CY2021	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	0	usd
CY2020	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	-100200000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-105400000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-41600000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-88800000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2568900000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2607100000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2406700000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	105100000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	13100000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	5700000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	451400000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	438300000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	432600000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	556500000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	451400000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	438300000	usd
CY2022	us-gaap	Basis Of Accounting BasisOfAccounting	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">ORGANIZATION</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The Registrants engage in the generation, transmission and distribution of electric power. The Registrant Subsidiaries that conduct most of these activities are regulated by the FERC under the Federal Power Act and the Energy Policy Act of 2005 and maintain accounts in accordance with the FERC and other regulatory guidelines. Most of these companies are subject to further regulation with regard to rates and other matters by state regulatory commissions.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">AEP provides competitive electric and gas supply for residential, commercial and industrial customers in deregulated electricity markets and also provides energy management solutions throughout the United States, including energy efficiency services through its independent retail electric supplier.</span></div>The Registrants also engage in wholesale electricity, natural gas and other commodity marketing and risk management activities in the United States and provide various energy-related services. In addition, AEP operates competitive wind and solar farms. I&M provides barging services to both affiliated and nonaffiliated companies. SWEPCo, through Sabine, conducts lignite mining operations to fuel the Pirkey Plant.
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The preparation of these financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. These estimates include, but are not limited to, inventory valuation, allowance for doubtful accounts, goodwill, intangible and long-lived asset impairment, unbilled electricity revenue, valuation of long-term energy contracts, the effects of regulation, long-lived asset recovery, storm costs, the effects of contingencies and certain assumptions made in accounting for pension and postretirement benefits. The estimates and assumptions used are based upon management’s evaluation of the relevant facts and circumstances as of the date of the financial statements. Actual results could ultimately differ from those estimates.</span></div>
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	509400000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	47100000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	556500000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	403400000	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	48000000.0	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	451400000	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	The Registrant Subsidiaries monitor credit levels and the financial condition of their customers on a continuous basis to minimize credit risk. The regulatory commissions allow recovery in rates for a reasonable level of bad debt costs. Management believes adequate provisions for credit loss have been made in the accompanying Registrant Subsidiary financial statements.
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	495700000	shares
CY2022	aep	Estimated Pre Tax Income Reduction EstimatedPreTaxIncomeReduction	20000000	usd
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.44
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2307200000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2488100000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2200100000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	511800000	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.51
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	500500000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.97
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	513500000	shares
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.49
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	501800000	shares
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.96
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	497200000	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.42
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	128000	shares
CY2022	us-gaap	Depreciation Depreciation	3072800000	usd
CY2022	aep	Amortizationof Certain Securitized Assets AmortizationofCertainSecuritizedAssets	93300000	usd
CY2022	aep	Amortizationof Regulatory Assetsand Liabilities AmortizationofRegulatoryAssetsandLiabilities	36700000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	3202800000	usd
CY2021	us-gaap	Depreciation Depreciation	2717100000	usd
CY2021	aep	Amortizationof Certain Securitized Assets AmortizationofCertainSecuritizedAssets	64200000	usd
CY2021	aep	Amortizationof Regulatory Assetsand Liabilities AmortizationofRegulatoryAssetsandLiabilities	44400000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2825700000	usd
CY2020	us-gaap	Depreciation Depreciation	2487500000	usd
CY2020	aep	Amortizationof Certain Securitized Assets AmortizationofCertainSecuritizedAssets	171300000	usd
CY2020	aep	Amortizationof Regulatory Assetsand Liabilities AmortizationofRegulatoryAssetsandLiabilities	24000000.0	usd
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2682800000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	1286300000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1137200000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1029100000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	116800000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	13200000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-49100000	usd
CY2022	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	31800000	usd
CY2021	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	287600000	usd
CY2020	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	44200000	usd
CY2022	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	1258900000	usd
CY2021	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	1180400000	usd
CY2020	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	975400000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	0	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	5500000	usd
CY2022	aep	Acquisition Of Nuclear Fuel Included In Current Liabilities AcquisitionOfNuclearFuelIncludedInCurrentLiabilities	0	usd
CY2021	aep	Acquisition Of Nuclear Fuel Included In Current Liabilities AcquisitionOfNuclearFuelIncludedInCurrentLiabilities	0	usd
CY2020	aep	Acquisition Of Nuclear Fuel Included In Current Liabilities AcquisitionOfNuclearFuelIncludedInCurrentLiabilities	33400000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	184800000	usd
CY2022	aep	Other Comprehensive Income Unrealized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossArisingDuringPeriodNetOfTax	340300000	usd
CY2022	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-537700000	usd
CY2022	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-424700000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-101100000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	83700000	usd
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-85100000	usd
CY2021	aep	Other Comprehensive Income Unrealized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossArisingDuringPeriodNetOfTax	536800000	usd
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	-337900000	usd
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-266900000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	269900000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	184800000	usd
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-147700000	usd
CY2020	aep	Other Comprehensive Income Unrealized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossArisingDuringPeriodNetOfTax	-66400000	usd
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax	163200000	usd
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	129000000.0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	62600000	usd
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-85100000	usd
CY2022Q4	aep	Aep Share Of Independence Energy Connection Capital Costs AEPShareOfIndependenceEnergyConnectionCapitalCosts	87000000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1286800000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	647800000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4281200000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4142300000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	1400000	usd
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	1500000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	7999600000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	8686300000	usd
CY2022Q4	us-gaap	Recorded Unconditional Purchase Obligation Due Within One Year RecordedUnconditionalPurchaseObligationDueWithinOneYear	1667600000	usd
CY2022Q4	aep	Recorded Unconditional Purchase Obligation Due Within Two To Three Year RecordedUnconditionalPurchaseObligationDueWithinTwoToThreeYear	2089500000	usd
CY2022Q4	aep	Recorded Unconditional Purchase Obligation Due Within Four To Five Year RecordedUnconditionalPurchaseObligationDueWithinFourToFiveYear	694500000	usd
CY2022Q4	us-gaap	Recorded Unconditional Purchase Obligation Due After Fifth Year RecordedUnconditionalPurchaseObligationDueAfterFifthYear	822500000	usd
CY2022Q4	us-gaap	Recorded Unconditional Purchase Obligation RecordedUnconditionalPurchaseObligation	5274100000	usd
CY2022	aep	Rockport Plant Unit2 Acquisition Price RockportPlantUnit2AcquisitionPrice	116000000	usd
CY2022	aep	Matching Contributions Provided Percentage MatchingContributionsProvidedPercentage	1
CY2022	aep	Eligible Compensation Contribution By Employee Percentage EligibleCompensationContributionByEmployeePercentage	0.01
CY2022	aep	Second Matching Contributions Provided Percentage SecondMatchingContributionsProvidedPercentage	0.70
CY2022	aep	Second Eligible Compensation Contribution By Employee Percentage SecondEligibleCompensationContributionByEmployeePercentage	0.05
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	81900000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	79900000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	81800000	usd
CY2022Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	12000000	usd
CY2021Q4	us-gaap	Multiemployer Plans Withdrawal Obligation MultiemployerPlansWithdrawalObligation	22000000	usd
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	19639500000	usd
CY2022	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	0	usd
CY2022	us-gaap	Revenues Revenues	19639500000	usd
CY2022	aep	Loss On The Expected Sale Of Kp Co LossOnTheExpectedSaleOfKPCo	363300000	usd
CY2022	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	48800000	usd
CY2022	aep	Establishment Of Regulatory Asset EstablishmentOfRegulatoryAsset	-37000000.0	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-116300000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	3202800000	usd
CY2022	us-gaap	Interest Expense InterestExpense	1396100000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-109400000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	2305600000	usd
CY2022	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	7879000000	usd
CY2022Q4	us-gaap	Assets Assets	93469400000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1276700000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	16792000000	usd
CY2021	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	0	usd
CY2021	us-gaap	Revenues Revenues	16792000000	usd
CY2021	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	11600000	usd
CY2021	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2825700000	usd
CY2021	us-gaap	Interest Expense InterestExpense	1199100000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	115500000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	91700000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	2488100000	usd
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	6426800000	usd
CY2021Q4	us-gaap	Assets Assets	87668700000	usd
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1447500000	usd
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	14918500000	usd
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	0	usd
CY2020	us-gaap	Revenues Revenues	14918500000	usd
CY2020	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	2682800000	usd
CY2020	us-gaap	Interest Expense InterestExpense	1165700000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40500000	usd
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	91100000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	2196700000	usd
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	6246300000	usd
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1406300000	usd
CY2022Q4	us-gaap	Securities Received As Collateral SecuritiesReceivedAsCollateral	481000000	usd
CY2021Q4	us-gaap	Securities Received As Collateral SecuritiesReceivedAsCollateral	263000000	usd
CY2022	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	693700000	usd
CY2021	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	324000000.0	usd
CY2020	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	116900000	usd
CY2022Q4	aep	Carrying Amountof Hedged Asset Liability CarryingAmountofHedgedAssetLiability	-855500000	usd
CY2021Q4	aep	Carrying Amountof Hedged Asset Liability CarryingAmountofHedgedAssetLiability	-952300000	usd
CY2022Q4	aep	Cumulative Fair Value Hedging Adjustmentinthe Carrying Amountofthe Hedged Asset Liability CumulativeFairValueHedgingAdjustmentintheCarryingAmountoftheHedgedAssetLiability	89700000	usd
CY2021Q4	aep	Cumulative Fair Value Hedging Adjustmentinthe Carrying Amountofthe Hedged Asset Liability CumulativeFairValueHedgingAdjustmentintheCarryingAmountoftheHedgedAssetLiability	-8500000	usd
CY2022Q4	us-gaap	Hedged Liability Discontinued Fair Value Hedge Cumulative Increase Decrease HedgedLiabilityDiscontinuedFairValueHedgeCumulativeIncreaseDecrease	-38000000	usd
CY2021Q4	us-gaap	Hedged Liability Discontinued Fair Value Hedge Cumulative Increase Decrease HedgedLiabilityDiscontinuedFairValueHedgeCumulativeIncreaseDecrease	-46000000	usd
CY2022	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-90400000	usd
CY2021	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-35500000	usd
CY2020	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	41100000	usd
CY2022	aep	Gain Loss On Fair Value Portion Of Long Term Debt GainLossOnFairValuePortionOfLongTermDebt	90400000	usd
CY2021	aep	Gain Loss On Fair Value Portion Of Long Term Debt GainLossOnFairValuePortionOfLongTermDebt	35500000	usd
CY2020	aep	Gain Loss On Fair Value Portion Of Long Term Debt GainLossOnFairValuePortionOfLongTermDebt	-41100000	usd
CY2022Q4	aep	Notional Amount Of A Discontinued Hedge NotionalAmountOfADiscontinuedHedge	500000000	usd
CY2022Q4	us-gaap	Deferred Gain Loss On Discontinuation Of Fair Value Hedge DeferredGainLossOnDiscontinuationOfFairValueHedge	57000000	usd
CY2022Q4	us-gaap	Deferred Gain Loss On Discontinuation Of Fair Value Hedge DeferredGainLossOnDiscontinuationOfFairValueHedge	57000000	usd
CY2022Q4	aep	Credit Downgrade Trigger Exposure CreditDowngradeTriggerExposure	2000000	usd
CY2021Q4	aep	Credit Downgrade Trigger Exposure CreditDowngradeTriggerExposure	9000000	usd
CY2022Q4	aep	Fair Value Of Derivative Liabilities Subject To Cross Acceleration Provisions FairValueOfDerivativeLiabilitiesSubjectToCrossAccelerationProvisions	127000000	usd
CY2021Q4	aep	Fair Value Of Derivative Liabilities Subject To Cross Acceleration Provisions FairValueOfDerivativeLiabilitiesSubjectToCrossAccelerationProvisions	40000000	usd
CY2022Q4	aep	Fair Value Of Derivative Liabilities Subject To Cross Default Provisions FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions	217000000	usd
CY2021Q4	aep	Fair Value Of Derivative Liabilities Subject To Cross Default Provisions FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions	76000000	usd
CY2021Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3867000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	35622600000	usd
CY2022Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	31767100000	usd
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	33454500000	usd
CY2021Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	37564700000	usd
CY2022Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	223500000	usd
CY2022Q4	us-gaap	Investment Owned Unrecognized Unrealized Appreciation InvestmentOwnedUnrecognizedUnrealizedAppreciation	19400000	usd
CY2022Q4	us-gaap	Investment Owned Unrecognized Unrealized Depreciation InvestmentOwnedUnrecognizedUnrealizedDepreciation	-8300000	usd
CY2022Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	234600000	usd
CY2021Q4	us-gaap	Investment Owned At Cost InvestmentOwnedAtCost	232000000.0	usd
CY2021Q4	us-gaap	Investment Owned Unrecognized Unrealized Appreciation InvestmentOwnedUnrecognizedUnrealizedAppreciation	36400000	usd
CY2021Q4	us-gaap	Investment Owned Unrecognized Unrealized Depreciation InvestmentOwnedUnrecognizedUnrealizedDepreciation	0	usd
CY2021Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	268400000	usd
CY2022	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	30200000	usd
CY2021	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	15000000.0	usd
CY2020	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	50900000	usd
CY2022	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	18800000	usd
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	26900000	usd
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	41600000	usd
CY2022	aep	Gross Realized Gains On Investment Sales On Short Term Investment GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment	6100000	usd
CY2021	aep	Gross Realized Gains On Investment Sales On Short Term Investment GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment	3600000	usd
CY2020	aep	Gross Realized Gains On Investment Sales On Short Term Investment GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment	3800000	usd
CY2022	aep	Gross Realized Losses On Investment Sales On Short Term Investment GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment	1300000	usd
CY2021	aep	Gross Realized Losses On Investment Sales On Short Term Investment GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment	0	usd
CY2020	aep	Gross Realized Losses On Investment Sales On Short Term Investment GrossRealizedLossesOnInvestmentSalesOnShortTermInvestment	200000	usd
CY2022Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3341200000	usd
CY2022Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	234600000	usd
CY2022Q4	us-gaap	Derivative Assets DerivativeAssets	624500000	usd
CY2022Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3341200000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	4200300000	usd
CY2022Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	490500000	usd
CY2021Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	268400000	usd
CY2021Q4	us-gaap	Derivative Assets DerivativeAssets	461400000	usd
CY2021Q4	aep	Spent Nuclear Fuel And Decommissioning Trusts SpentNuclearFuelAndDecommissioningTrusts	3867000000	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	4640500000	usd
CY2021Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	305700000	usd
CY2021Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	97300000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings	69500000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-34900000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss	9600000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases Sales Issues Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements	-154600000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Into Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3	1700000	usd
CY2022	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Out Of Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3	100000	usd
CY2022	aep	Changes In Fair Value Allocated To Regulated Jurisdiction ChangesInFairValueAllocatedToRegulatedJurisdiction	165900000	usd
CY2022Q4	aep	Assets And Liabilities Held For Sale Related To Kp Co AssetsAndLiabilitiesHeldForSaleRelatedToKPCo	-2700000	usd
CY2022Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	151900000	usd
CY2020Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	113300000	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings	48600000	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-45200000	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss	24200000	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases Sales Issues Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements	-89000000.0	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Into Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3	-3800000	usd
CY2021	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Out Of Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3	-34400000	usd
CY2021	aep	Changes In Fair Value Allocated To Regulated Jurisdiction ChangesInFairValueAllocatedToRegulatedJurisdiction	89400000	usd
CY2021Q4	aep	Assets And Liabilities Held For Sale Related To Kp Co AssetsAndLiabilitiesHeldForSaleRelatedToKPCo	-5800000	usd
CY2021Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	97300000	usd
CY2019Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	109900000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Earnings FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInEarnings	39500000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Change In Unrealized Gain Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	35300000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Gain Loss Included In Other Comprehensive Income Loss FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationGainLossIncludedInOtherComprehensiveIncomeLoss	13800000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Purchases Sales Issues Settlements FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPurchasesSalesIssuesSettlements	-113100000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Into Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersIntoLevel3	-3800000	usd
CY2020	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Transfers Out Of Level3 FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationTransfersOutOfLevel3	5600000	usd
CY2020	aep	Changes In Fair Value Allocated To Regulated Jurisdiction ChangesInFairValueAllocatedToRegulatedJurisdiction	26100000	usd
CY2020Q4	us-gaap	Fair Value Net Derivative Asset Liability Measured On Recurring Basis With Unobservable Inputs FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs	113300000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	113100000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-88800000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	24300000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26600000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-45500000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-18900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-27800000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	182600000	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	154800000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6000000.0	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-45300000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	-39300000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	115500000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-138200000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	146900000	usd
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	8700000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-16700000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	48500000	usd
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	31800000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40500000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	2305600000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	2488100000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	2196700000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	115500000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40500000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2309600000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2600200000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2234300000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	485000000.0	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	546000000.0	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	469200000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	17100000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	25900000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	26500000	usd
CY2022	aep	Income Tax Reconciliation Nondeductible Expense Permanent Miscellaneous IncomeTaxReconciliationNondeductibleExpensePermanentMiscellaneous	11500000	usd
CY2021	aep	Income Tax Reconciliation Nondeductible Expense Permanent Miscellaneous IncomeTaxReconciliationNondeductibleExpensePermanentMiscellaneous	-1300000	usd
CY2020	aep	Income Tax Reconciliation Nondeductible Expense Permanent Miscellaneous IncomeTaxReconciliationNondeductibleExpensePermanentMiscellaneous	-9700000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	14300000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	22000000.0	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	18800000	usd
CY2022	aep	Increase Decrease In Income Taxes Due To Energy Production Credits IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits	-197100000	usd
CY2021	aep	Increase Decrease In Income Taxes Due To Energy Production Credits IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits	-98800000	usd
CY2020	aep	Increase Decrease In Income Taxes Due To Energy Production Credits IncreaseDecreaseInIncomeTaxesDueToEnergyProductionCredits	-83100000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	-14000000.0	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	39400000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Settlements State And Local IncomeTaxReconciliationTaxSettlementsStateAndLocal	25100000	usd
CY2022	aep	Increase Decrease In Income Taxes Due To Removal Costs IncreaseDecreaseInIncomeTaxesDueToRemovalCosts	-26500000	usd
CY2021	aep	Increase Decrease In Income Taxes Due To Removal Costs IncreaseDecreaseInIncomeTaxesDueToRemovalCosts	-20000000.0	usd
CY2020	aep	Increase Decrease In Income Taxes Due To Removal Costs IncreaseDecreaseInIncomeTaxesDueToRemovalCosts	-18600000	usd
CY2022	aep	Increase Decrease In Income Taxes Afudc IncreaseDecreaseInIncomeTaxesAfudc	-29300000	usd
CY2021	aep	Increase Decrease In Income Taxes Afudc IncreaseDecreaseInIncomeTaxesAfudc	-30600000	usd
CY2020	aep	Increase Decrease In Income Taxes Afudc IncreaseDecreaseInIncomeTaxesAfudc	-32500000	usd
CY2022	aep	Increase Decrease In Income Taxes Due To Tax Reserve Adjustments IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments	0	usd
CY2021	aep	Increase Decrease In Income Taxes Due To Tax Reserve Adjustments IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments	-55100000	usd
CY2020	aep	Increase Decrease In Income Taxes Due To Tax Reserve Adjustments IncreaseDecreaseInIncomeTaxesDueToTaxReserveAdjustments	0	usd
CY2022	aep	Tax Reform Excess Adit Reversal TaxReformExcessADITReversal	-214500000	usd
CY2021	aep	Tax Reform Excess Adit Reversal TaxReformExcessADITReversal	-255600000	usd
CY2020	aep	Tax Reform Excess Adit Reversal TaxReformExcessADITReversal	-268200000	usd
CY2022	aep	Federal Return To Provision FederalReturnToProvision	-17400000	usd
CY2021	aep	Federal Return To Provision FederalReturnToProvision	-1600000	usd
CY2020	aep	Federal Return To Provision FederalReturnToProvision	-2600000	usd
CY2022	aep	Caresact Provision CARESACTProvision	0	usd
CY2021	aep	Caresact Provision CARESACTProvision	0	usd
CY2020	aep	Caresact Provision CARESACTProvision	-48000000.0	usd
CY2022	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	4900000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-10800000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1200000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5400000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	115500000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40500000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.002
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.044
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.018
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3402500000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3277000000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11895800000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11479500000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8493300000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8202500000	usd
CY2022Q4	aep	Deferred Tax Assets Liabilities Net Property Related Temporary Differences DeferredTaxAssetsLiabilitiesNetPropertyRelatedTemporaryDifferences	7531800000	usd
CY2021Q4	aep	Deferred Tax Assets Liabilities Net Property Related Temporary Differences DeferredTaxAssetsLiabilitiesNetPropertyRelatedTemporaryDifferences	7020300000	usd
CY2022Q4	aep	Amounts Due From Customers For Future Federal Income Taxes AmountsDueFromCustomersForFutureFederalIncomeTaxes	-921200000	usd
CY2021Q4	aep	Amounts Due From Customers For Future Federal Income Taxes AmountsDueFromCustomersForFutureFederalIncomeTaxes	-1033000000	usd
CY2022Q4	aep	Deferred State Income Taxes DeferredStateIncomeTaxes	949900000	usd
CY2021Q4	aep	Deferred State Income Taxes DeferredStateIncomeTaxes	1116700000	usd
CY2022Q4	aep	Deferred Tax Assets Liabilities Securitized Assets DeferredTaxAssetsLiabilitiesSecuritizedAssets	98900000	usd
CY2021Q4	aep	Deferred Tax Assets Liabilities Securitized Assets DeferredTaxAssetsLiabilitiesSecuritizedAssets	128800000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	756700000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	645400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	-632700000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	-743200000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	120700000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	285700000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	611500000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	439800000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	143000000.0	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	114200000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	338900000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	392100000	usd
CY2022Q4	aep	All Other Net AllOtherNet	-19200000	usd
CY2021Q4	aep	All Other Net AllOtherNet	28700000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8493300000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	8202500000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	14300000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13200000	usd
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24100000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5100000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1200000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	600000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	3200000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	14500000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3800000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3100000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000.0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	23200000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	14300000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	13200000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	23000000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14000000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	12000000	usd
CY2021Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	95000000	usd
CY2020	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	48000000	usd
CY2021Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	95000000	usd
CY2021	aep	Income Tax Expense Re Measurement IncomeTaxExpenseReMeasurement	23000000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	157500000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	205500000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	13400000	usd
CY2022	us-gaap	Lease Cost LeaseCost	376400000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	275300000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	74700000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	14400000	usd
CY2021	us-gaap	Lease Cost LeaseCost	364400000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	279600000	usd
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	61900000	usd
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	15400000	usd
CY2020	us-gaap	Lease Cost LeaseCost	356900000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P12Y8M8D
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y7M9D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0354
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0576
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y4M20D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y11M12D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0335
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0326
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	155100000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	13600000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	309500000	usd
CY2022	aep	Noncash Acquisitions Under Operating Leases NoncashAcquisitionsUnderOperatingLeases	191400000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	279900000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	14300000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	64000000.0	usd
CY2021	aep	Noncash Acquisitions Under Operating Leases NoncashAcquisitionsUnderOperatingLeases	117000000.0	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	212400000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	225400000	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	490200000	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	500700000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	552100000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	113400000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	665500000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	492800000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	97600000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	590400000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Next Rolling Twelve Months FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths	67800000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	71400000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	40900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	24900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Five FinanceLeaseLiabilityPaymentsDueInRollingYearFive	19200000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling After Year Five FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive	32600000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	256800000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	31400000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	225400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	138500000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	125700000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	86600000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	75500000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	65600000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	352000000.0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	843900000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	178400000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	665500000	usd
CY2022Q4	aep	Max Potential Loss On Master Lease Agreements MaxPotentialLossOnMasterLeaseAgreements	46000000.0	usd
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	514373631	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20204160	shares
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	2434723	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	516808354	shares
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20204160	shares
CY2021	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	7607821	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	524416175	shares
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	20204160	shares
CY2022	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	683146	shares
CY2022	us-gaap	Partners Capital Account Units Treasury Units Reissued PartnersCapitalAccountUnitsTreasuryUnitsReissued	-8970920	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	525099321	shares
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	11233240	shares
CY2022	aep	Maximum Value Of Shares To Be Issued Under Atm Program MaximumValueOfSharesToBeIssuedUnderATMProgram	1000000000	usd
CY2022	aep	Maximum Percentage Paid To Selling Agents MaximumPercentagePaidToSellingAgents	0.02
CY2022Q4	us-gaap	Unsecured Debt UnsecuredDebt	29486200000	usd
CY2021Q4	us-gaap	Unsecured Debt UnsecuredDebt	27497300000	usd
CY2022Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	1705300000	usd
CY2022Q4	aep	Commitment From Bank Conduits To Finance Receivables Two CommitmentFromBankConduitsToFinanceReceivablesTwo	625000000	usd
CY2021Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	1804500000	usd
CY2022Q4	us-gaap	Other Notes Payable OtherNotesPayable	269700000	usd
CY2021Q4	us-gaap	Other Notes Payable OtherNotesPayable	211300000	usd
CY2022Q4	us-gaap	Secured Debt SecuredDebt	487800000	usd
CY2021Q4	us-gaap	Secured Debt SecuredDebt	603500000	usd
CY2022Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	285600000	usd
CY2021Q4	us-gaap	Spent Nuclear Fuel Obligation Noncurrent SpentNuclearFuelObligationNoncurrent	281300000	usd
CY2022Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	2381300000	usd
CY2021Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	2373000000	usd
CY2022Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	1006700000	usd
CY2021Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	683600000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	35622600000	usd
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	33454500000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1996400000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1525200000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	3253900000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1554000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2211900000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	25388800000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	35930200000	usd
CY2022Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	307600000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	35622600000	usd
CY2022Q4	aep	Restricted Net Assets RestrictedNetAssets	16200000000	usd
CY2022Q4	aep	Dividend Payment Restrictions DividendPaymentRestrictions	3023000000	usd
CY2022	aep	Maximum Percentage Debt To Capitalization MaximumPercentageDebtToCapitalization	0.675
CY2022Q4	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	8100000000	usd
CY2022Q4	aep	Credit Facilities Structured CreditFacilitiesStructured	5000000000	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	750000000.0	usd
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0467
CY2021Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	750000000.0	usd
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0019
CY2022Q4	us-gaap	Commercial Paper CommercialPaper	2862200000	usd
CY2021Q4	us-gaap	Commercial Paper CommercialPaper	1364000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	4112200000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	2614000000	usd
CY2022Q4	aep	Commitment From Bank Conduits To Finance Receivables CommitmentFromBankConduitsToFinanceReceivables	125000000	usd
CY2022Q4	aep	Commitment From Bank Conduits To Finance Receivables Two CommitmentFromBankConduitsToFinanceReceivablesTwo	625000000	usd
CY2022Q4	aep	Total Commitment From Bank Conduits To Finance Receivables TotalCommitmentFromBankConduitsToFinanceReceivables	750000000	usd
CY2022Q4	aep	Commitment From Bank Conduits To Finance Receivables CommitmentFromBankConduitsToFinanceReceivables	125000000	usd
CY2022	aep	Effective Interest Rates On Securitization Of Accounts Receivable EffectiveInterestRatesOnSecuritizationOfAccountsReceivable	0.0184
CY2021	aep	Effective Interest Rates On Securitization Of Accounts Receivable EffectiveInterestRatesOnSecuritizationOfAccountsReceivable	0.0019
CY2020	aep	Effective Interest Rates On Securitization Of Accounts Receivable EffectiveInterestRatesOnSecuritizationOfAccountsReceivable	0.0085
CY2022	aep	Net Uncollectible Accounts Receivable Written Off NetUncollectibleAccountsReceivableWrittenOff	29500000	usd
CY2021	aep	Net Uncollectible Accounts Receivable Written Off NetUncollectibleAccountsReceivableWrittenOff	26500000	usd
CY2020	aep	Net Uncollectible Accounts Receivable Written Off NetUncollectibleAccountsReceivableWrittenOff	15300000	usd
CY2022Q4	aep	Accounts Receivable Retained Interest And Pledged As Collateral Less Uncollectible Accounts AccountsReceivableRetainedInterestAndPledgedAsCollateralLessUncollectibleAccounts	1167700000	usd
CY2021Q4	aep	Accounts Receivable Retained Interest And Pledged As Collateral Less Uncollectible Accounts AccountsReceivableRetainedInterestAndPledgedAsCollateralLessUncollectibleAccounts	995200000	usd
CY2022Q4	us-gaap	Principal Amount Outstanding On Loans Held For Sale Or Securitization PrincipalAmountOutstandingOnLoansHeldForSaleOrSecuritization	750000000.0	usd
CY2021Q4	us-gaap	Principal Amount Outstanding On Loans Held For Sale Or Securitization PrincipalAmountOutstandingOnLoansHeldForSaleOrSecuritization	750000000.0	usd
CY2022Q4	us-gaap	Delinquent Amount At End Of Period On Loans Managed And Securitized DelinquentAmountAtEndOfPeriodOnLoansManagedAndSecuritized	44200000	usd
CY2021Q4	us-gaap	Delinquent Amount At End Of Period On Loans Managed And Securitized DelinquentAmountAtEndOfPeriodOnLoansManagedAndSecuritized	57900000	usd
CY2022Q4	aep	Bad Debt Reserves Related To Securitized Sale Of Accounts Receivable BadDebtReservesRelatedToSecuritizedSaleOfAccountsReceivable	39700000	usd
CY2021Q4	aep	Bad Debt Reserves Related To Securitized Sale Of Accounts Receivable BadDebtReservesRelatedToSecuritizedSaleOfAccountsReceivable	42800000	usd
CY2022Q4	aep	Unbilled Receivables Related To Securitization Sale Of Accounts Receivable UnbilledReceivablesRelatedToSecuritizationSaleOfAccountsReceivable	360900000	usd
CY2021Q4	aep	Unbilled Receivables Related To Securitization Sale Of Accounts Receivable UnbilledReceivablesRelatedToSecuritizationSaleOfAccountsReceivable	307100000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	10000000	shares
CY2022Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	5249391	shares
CY2022Q4	aep	Reductionin Aggregate Common Shares Authorized Per Share Issued Pursuantto Stock Optionsor Stock Appreciation Rights ReductioninAggregateCommonSharesAuthorizedPerShareIssuedPursuanttoStockOptionsorStockAppreciationRights	0.286	shares
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CY2022	aep	Related Party Charitable Contribuionsto Aep Foundation RelatedPartyCharitableContribuionstoAEPFoundation	75000000.0	usd
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CY2022Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	71282900000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	66001300000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2741700000	usd
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CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	37400000	usd
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CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	100300000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2943600000	usd
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CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	138600000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	2741700000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	133700000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	139700000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	148100000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	63000000.0	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	53800000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	66000000.0	usd
CY2022Q4	us-gaap	Jointly Owned Utility Plant Gross Ownership Amount Of Plant In Service JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService	2626000000	usd
CY2022Q4	us-gaap	Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress	21500000	usd
CY2022Q4	us-gaap	Jointly Owned Utility Plant Ownership Amount Of Plant Accumulated Depreciation JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation	1096100000	usd
CY2021Q4	us-gaap	Jointly Owned Utility Plant Gross Ownership Amount Of Plant In Service JointlyOwnedUtilityPlantGrossOwnershipAmountOfPlantInService	2589400000	usd
CY2021Q4	us-gaap	Jointly Owned Utility Plant Ownership Amount Of Construction Work In Progress JointlyOwnedUtilityPlantOwnershipAmountOfConstructionWorkInProgress	16500000	usd
CY2021Q4	us-gaap	Jointly Owned Utility Plant Ownership Amount Of Plant Accumulated Depreciation JointlyOwnedUtilityPlantOwnershipAmountOfPlantAccumulatedDepreciation	947400000	usd
CY2022	us-gaap	Revenues Revenues	19639500000	usd
CY2021	us-gaap	Revenues Revenues	16792000000	usd
CY2020	us-gaap	Revenues Revenues	14918500000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	437000000.0	usd
CY2020Q4	us-gaap	Goodwill Goodwill	52500000	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021Q4	us-gaap	Goodwill Goodwill	52500000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022Q4	us-gaap	Goodwill Goodwill	52500000	usd

Files In Submission

Name	View Source	Status
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aep-20221231_pre.xml	Edgar Link	unprocessable
aep-20221231_cal.xml	Edgar Link	unprocessable
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aep-20221231_def.xml	Edgar Link	unprocessable
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aep-20221231_g9.jpg	Edgar Link	pending
ex1020224q.htm	Edgar Link	pending
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aep-20221231_lab.xml	Edgar Link	unprocessable
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ex3aaep20224q.htm	Edgar Link	pending
ex9520224q.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
image_0.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AEP
AMERICAN ELECTRIC POWER CO INC Stock $aep

2022 Q4 Form 10-K Financial Statement

#000000490423000011 Filed on February 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AEP AMERICAN ELECTRIC POWER CO INC Stock $aep

2022 Q4 Form 10-K Financial Statement

#000000490423000011 Filed on February 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AEP
AMERICAN ELECTRIC POWER CO INC Stock $aep