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

Name:	ppl_IntercompanyBillingsBySubsidiaryDetailsAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
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Name:	ppl_IntercompanyBorrowingsNumericAbstract
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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:	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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Data Type:	xbrli:stringItemType
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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

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a)(5))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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_LouisvilleGasAndElectricCoMember
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