The amount of the cap on an indemnity with respect to certain surrenders of tax losses.

No definition available.

Name:	ppl_IndemnificationCapSurrendersOfTaxLosses
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Indemnification for Safari sale/leaseback

+ References

No definition available.

+ Details

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

- Definition

Maximum aggregate insurance coverage for liability assumed under contract for bodily injury and property damage.

+ References

No definition available.

+ Details

Name:	ppl_MaximumAggregateCoverageBodilyInjuryAndPropertyDamage
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Entity's contingent proportionate share of OVEC's outstanding debt.

+ References

No definition available.

+ Details

Name:	ppl_ProportionateShareOfOhioValleyElectricCorporationOutstandingDebt
Namespace Prefix:	ppl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

Name:	us-gaap_GuaranteeObligationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

States the reasons why the guarantor is unable to develop an estimate of the maximum potential amount of future payments under its guarantee (or each group of similar guarantees).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

Name:	us-gaap_GuaranteeObligationsMaximumExposureInestimable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByDescriptionAxis=ppl_GuaranteeForShortfallRelatedToOhioValleyElectricCorporationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	ppl_GuaranteeByEntityAxis=ppl_PplGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_IndemnificationGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByDescriptionAxis=ppl_IndemnificationsRelatedToCertainTaxLiabilitiesRelatedToTheSaleOfTheUKUtilityBusinessDomain
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByDescriptionAxis=ppl_GuaranteeOfPaymentObligationsUnderCertainSaleleasebackFinancingTransactionsRelatedToTheSaleOfSafariHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByDescriptionAxis=ppl_GuaranteeOfPaymentObligationsUnderCertainPowerPurchaseAgreementsRelatedToTheSaleOfSafariHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByDescriptionAxis=ppl_IndemnificationsForLossesSufferedRelatedToItemsNotCoveredByAspenPowersRepresentationAndWarrantyInsuranceAssociatedWithTheSaleOfSafariHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ppl_GuaranteeByEntityAxis=ppl_LouisvilleGasAndElectricAndKuEnergyGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

Commitments and Contingencies - Guarantees and Other Assurances (Details) - 3 months ended Mar. 31, 2023 £ in Millions, $ in Millions	USD ($)	GBP (£)	USD ($)
Other Guarantee (Numeric) [Abstract]
Maximum aggregate coverage bodily injury and property damage			$ 225
Indemnification Cap, Surrenders of Tax Losses \| £		£ 50
Indemnification for Safari sale/leaseback	$ 25
Financial Guarantee [Member] \| LGE And KU Guarantee Of Shortfall Related To OVEC [Member] \| LGE [Member]
Guarantor Obligations [Line Items]
Contingent proportionate share of OVEC's outstanding debt			61
Financial Guarantee [Member] \| LGE And KU Guarantee Of Shortfall Related To OVEC [Member] \| KU [Member]
Guarantor Obligations [Line Items]
Contingent proportionate share of OVEC's outstanding debt			27
PPL Guarantee [Member] \| Indemnification Guarantee [Member] \| Indemnifications related to certain tax liabilities related to the sale of the U.K. utility business [Domain]
Other Guarantee (Numeric) [Abstract]
Maximum exposure \| £		£ 50
PPL Guarantee [Member] \| Indemnification Guarantee [Member] \| Guarantee of payment obligations under certain sale/leaseback financing transactions related to the sale of Safari Holdings
Other Guarantee (Numeric) [Abstract]
Maximum exposure			146
PPL Guarantee [Member] \| Indemnification Guarantee [Member] \| Guarantee of payment obligations under certain power purchase agreements related to the sale of Safari Holdings
Other Guarantee (Numeric) [Abstract]
Maximum exposure			55
PPL Guarantee [Member] \| Indemnification Guarantee [Member] \| Indemnifications for losses suffered related to items not covered by Aspen Power's representation and warranty insurance associated with the sale of Safari Holdings
Other Guarantee (Numeric) [Abstract]
Maximum exposure			140
LKE Guarantee [Member] \| Financial Guarantee [Member] \| LGE And KU Guarantee Of Shortfall Related To OVEC [Member]
Guarantor Obligations [Line Items]
Maximum exposure is not estimable	The maximum exposure and the expiration date of these potential obligations are not presently determinable.
Contingent proportionate share of OVEC's outstanding debt			88
Louisville Gas And Electric Co [Member] \| Financial Guarantee [Member] \| LGE And KU Guarantee Of Shortfall Related To OVEC [Member]
Guarantor Obligations [Line Items]
Maximum exposure is not estimable	The maximum exposure and the expiration date of these potential obligations are not presently determinable
Contingent proportionate share of OVEC's outstanding debt			61
Kentucky Utilities Co [Member] \| Financial Guarantee [Member] \| LGE And KU Guarantee Of Shortfall Related To OVEC [Member]
Guarantor Obligations [Line Items]
Maximum exposure is not estimable	The maximum exposure and the expiration date of these potential obligations are not presently determinable
Contingent proportionate share of OVEC's outstanding debt			$ 27