Name:	ppl_Act129RecoveryPeriodUnderPhaseIVPlan
Namespace Prefix:	ppl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Amount of ROE remitted by NEP

No definition available.

Name:	ppl_AmountOfROERemittedByNEP
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The benefit-cost ratio that AMF program is due to yield over a 20-year period.

No definition available.

Name:	ppl_BenefitCostRatioYieldOfTheAMFProgram
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The power rating of the 4-hour battery energy storage facility applied for via CPCN to be constructed at the E.W. Brown Generating Station in Mercer County, Kentucky.

No definition available.

Name:	ppl_CPCN4HourBatteryEnergyStorageFacilityToBeConstructedPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

The net summer rating of the NGCC combustion turbine facilities applied for via CPCN at Mill Creek Generating Station in Jefferson County, Kentucky and E.W. Brown Generating Station in Mercer County, Kentucky.

No definition available.

Name:	ppl_CPCNNGCCCombustionTurbineFacilitiesPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

The amount of power need to be reduced by the implementation of proposed new and adjusted energy efficiency programs as part of a CPCN application.

No definition available.

Name:	ppl_CPCNNewAndAdjustedEnergyEfficiencyProgramsOverallPowerNeedReduction
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

The power rating of the solar photovoltaic electric generating facility applied for via CPCN to be built by a third-party in Marion County, Kentucky.

No definition available.

Name:	ppl_CPCNSolarPhotovoltaicFacilityToBeAcquiredPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

The power rating of the solar photovoltaic electric generating facility applied for via CPCN to be constructed in Mercer County, Kentucky.

No definition available.

Name:	ppl_CPCNSolarPhotovoltaicFacilityToBeConstructedPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

Amount of Capital Investment spending for the GMP filing in the 2024 Gas ISR plan included in RIE’s recently filed GMP, along with investments stemming from the completion of RIE’s area studies.

No definition available.

Name:	ppl_CapitalInvestmentForThe2024GasISRPlanIncludedInTheGMPFiling
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of capital Investment to spend on the Electrical ISR plan over a 21-month period.

No definition available.

Name:	ppl_CapitalInvestmentToSpendOnTheFY2024ElectricalISRPlan
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Capital Investment to spend on the FY 2024 Gas IRS plan.

No definition available.

Name:	ppl_CapitalInvestmentToSpendOnTheFY2024GasISRPlan
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The distance in miles of leak-prone gas pipe to be abandoned as part of the FY 2024 gas ISR plan.

No definition available.

Name:	ppl_DistanceOfGasPipingToBeAbandonedFY2024GasISRMiles
Namespace Prefix:	ppl_
Data Type:	dtr-types:lengthItemType
Balance Type:	na
Period Type:	duration

The total generating capacity of the E. W. Brown 3 Unit in megawatts.

No definition available.

Name:	ppl_EWBrown3UnitGenerationCapacityPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

Net present value of estimated costs to fund the AMF program.

No definition available.

Name:	ppl_EstimatedNetPresentValue
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

FERC Granted ROE

No definition available.

Name:	ppl_FERCGrantedROE
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The total generating capacity of the Ghent 2 Unit in megawatts.

No definition available.

Name:	ppl_Ghent2UnitGenerationCapacityPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

Initial minimum base ROE to be reset by the FERC

No definition available.

Name:	ppl_InitialMinimumBaseROEToBeResetByTheFERC
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Maximum Base ROE reset by FERC

No definition available.

Name:	ppl_MaximumBaseROEResetByFERC
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The total generating capacity of the Mill Creek 1 Unit in megawatts.

No definition available.

Name:	ppl_MillCreek1UnitGenerationCapacityPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

The total generating capacity of the Mill Creek 2 Unit in megawatts.

No definition available.

Name:	ppl_MillCreek2UnitGenerationCapacityPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	instant

Minimum base ROE reset by FERC

No definition available.

Name:	ppl_MinimumBaseROEResetByFERC
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Net Present Value benefit of the AMF program over the 20-year project life.

No definition available.

Name:	ppl_NetPresentValueBenefitOfTheAMFProgram
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The percentage ownership of the planned NGCC facilities to be owned by KU.

No definition available.

Name:	ppl_NewNGCCKUPlannedOwnershipPercentage
Namespace Prefix:	ppl_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

The percentage ownership of the planned NGCC facilities owned by LG&E.

No definition available.

Name:	ppl_NewNGCCLGEPlannedOwnershipPercentage
Namespace Prefix:	ppl_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

New ROE by National Grid along with other NETOs who filed a brief supporting FERC's new methodology and confirming the illustrative numbers that FERC arrived at in its order addressing all four complaints

No definition available.

Name:	ppl_NewROEProposedByNETOAndApprovedByFERC
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The percentage ownership of the planned solar units to be owned by KU.

No definition available.

Name:	ppl_NewSolarUnitsKUPlannedOwnershipPercentage
Namespace Prefix:	ppl_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

The percentage ownership of the planned solar units to be owned by LG&E.

No definition available.

Name:	ppl_NewSolarUnitsLGEPlannedOwnershipPercentage
Namespace Prefix:	ppl_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

Percentage of common equity ratio PIPUC used on used to determine thee allowed ROE

No definition available.

Name:	ppl_PercentageOfCommonEquityUsedOnAllowedROE
Namespace Prefix:	ppl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

The amount of after tax regulatory liability increase due to return on equity reserve challenge.

No definition available.

Name:	ppl_RegulatoryLiabilityDueToROEReserveAfterTax
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The amount of before tax regulatory liability increase due to return on equity reserve challenge.

No definition available.

Name:	ppl_RegulatoryLiabilityDueToROEReserveBeforeTax
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

Name:	ppl_RegulatoryMattersFederalMattersFederalEnergyRegulatoryCommissionWholesaleFormulaRatesNumericAbstract
Namespace Prefix:	ppl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	ppl_RegulatoryMattersRateCaseProceedingsFederalEnergyRegulatoryCommissionFormulaRatesNumericAbstract
Namespace Prefix:	ppl_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Supplemental Capital Investment to spend on the FY 2024 Electrical ISR Plan as required by the RIPUC.

No definition available.

Name:	ppl_SupplementalCapitalInvestmentToSpendOnTheFY2024ElectricalISRPlan
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Additional amount added to the FY 2024 gas ISR plan as required by the RIPUC.

No definition available.

Name:	ppl_SupplementalCapitalInvestmentToSpendOnTheFY2024GasISRPlan
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The total capacity of non-firm energy-only power-purchase agreements entered into for the output of four solar photovoltaic facilities that is not subject to KPSC approval.

No definition available.

Name:	ppl_TotalCapacityOfPowerPurchaseAgreementsNotSubjectToKPSCApprovalPower
Namespace Prefix:	ppl_
Data Type:	dtr-types:powerItemType
Balance Type:	na
Period Type:	duration

Percentage of public utility's approved return on equity.

No definition available.

Name:	us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_RegulatoryAssetAmortizationPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	ppl_ByCompanyAxis=ppl_LouisvilleGasAndElectricCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RegulatoryAgencyAxis=ppl_KentuckyPublicServiceCommissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_ScheduleOfRegulatoryItemsWithSharedCharacteristicsAxis=ppl_EnvironmentalCostRecoveryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_ByCompanyAxis=ppl_KentuckyUtilitiesCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_ByCompanyAxis=ppl_PplElectricUtilitiesCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_PeriodOfROEReserveAxis=ppl_PeriodOf05212020To12312020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_PeriodOfROEReserveAxis=ppl_PeriodOf05212020To11302021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_ByCompanyAxis=ppl_RhodeIslandEnergyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RegulatoryAgencyAxis=ppl_RhodeIslandPublicUitiltyCommissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_FY2024ElectricalISRPlanComponentAxis=ppl_VegetationManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_FY2024ElectricalISRPlanComponentAxis=ppl_OtherOMMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_RIPUCApprovedROEAxis=ppl_CommonEquityPercentageRelatedToApprovedRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RegulatoryAgencyAxis=ppl_FederalEnergyRegulatoryCommissionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_FERCApprovedROEForTransmissionCostsAxis=ppl_AmountRemittedOnTheAuthorizedROEMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_FERCApprovedROEForTransmissionCostsAxis=ppl_MaximumROEAuthorizedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=ppl_PplElectricUtilitiesCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	ppl_ByCompanyAxis=ppl_PplElectricUtilitiesCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=ppl_LouisvilleGasAndElectricCoMember
Namespace Prefix:
Data Type:	na
Balance Type:
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