Name:	ppl_Act129MaximumRecoverableCostsUnderPhaseIiiPlan
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The period over which Act 129 Phase III Plan costs will be recovered in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	ppl_Act129RecoveryPeriodUnderPhaseIiiPlan
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Maximum term of long-term contracts for PLR supply allowed under Act 129 in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	ppl_MaximumDurationOfLongTermProcurementContracts
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The maximum percentage of PLR supply that long-term electric generation supply contracts are limited to under Act 129.

No definition available.

Name:	ppl_MaximumPercentageOfLongTermContractsForElectricGenerationSupplyService
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Data Type:	num:percentItemType
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Period Type:	duration

Minimum term of long-term contracts for PLR supply allowed under Act 129 in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	ppl_MinimumDurationOfLongTermProcurementContracts
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Estimated amount of capitalized costs for construction projects beginning in 2016 and continuing through 2023.

No definition available.

Name:	ppl_PublicUtilitiesExpectedCapitalCostsToComply
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- References

No definition available.

Name:	ppl_RegulatoryMattersKentuckyActivitiesCertificateOfPublicConvenienceAndNecessityAndEnvironmentalCostRecoveryFilingsNumericAbstract
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Data Type:	xbrli:stringItemType
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- References

No definition available.

Name:	ppl_RegulatoryMattersPennsylvaniaActivitiesAct129NumericAbstract
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- References

No definition available.

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Amount of loss contingency liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

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Percentage of public utility's approved return on equity.

No definition available.

Name:	us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage
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Data Type:	num:percentItemType
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Period Type:	duration

Percentage of public utility's requested return on equity.

No definition available.

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

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Namespace Prefix:
Data Type:	na
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Data Type:	na
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