Name:	ppl_CreditExposureWithAffiliateUnderMasterSupplyAgreement
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Costs billed to the company from a services affiliate. These costs include direct costs that are specifically related to the company or, for general costs that cannot be directly attributed, they are charged based on predetermined allocation factors and costs incurred where the service company has made a "convenience" payment on behalf of the company.

No definition available.

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

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

Name:	ppl_IntercompanyBorrowingsNumericAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Maximum loan capacity under the revolving demand note agreement with an affiliate of the reporting entity.

No definition available.

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

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

The amount of reduction in the capacity to an existing intercompany credit facility.

No definition available.

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

Costs allocated to the company from a services affiliate. These costs include direct costs that are specifically related to the company or, for general costs that cannot be directly attributed, they are charged based on predetermined allocation factors.

No definition available.

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

Name:	ppl_SupportCostsDetailsAbstract
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The amount for notes payable (written promise to pay), due to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

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-Topic 850

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph k

-Subparagraph 1

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Data Type:	xbrli:monetaryItemType
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Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

No definition available.

Name:	us-gaap_RelatedPartyTransactionRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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Name:	dei_LegalEntityAxis=ppl_LGAndEAndKUEnergyLLCMember
Namespace Prefix:
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Name:	dei_LegalEntityAxis=ppl_LouisvilleGasAndElectricCoMember
Namespace Prefix:
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Name:	dei_LegalEntityAxis=ppl_PplElectricUtilitiesCorpMember
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