XML 82 R54.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Commitments and Contingencies - Guarantees and Other Assurances (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2017 | Dec. 31, 2016
Guarantor Obligations [Line Items] |  |
Recorded liability for all guarantees | $ 22 | $ 22
Other Guarantee (Numeric) [Abstract] |  |
Maximum aggregate coverage bodily injury and property damage | $ 225 |
PPL Guarantee [Member] | Indemnification Guarantee [Member] | Indemnifications Related To WPD Midlands Acquisition [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure inestimable | The maximum exposure and expiration of these indemnifications cannot be estimated because the maximum potential liability is not capped and the expiration date is not specified in the transaction documents. |
PPL Guarantee [Member] | Indemnification Guarantee [Member] | Indemnifications For Entities In Liquidation Sales Of Assets [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 10 |
Expiration date | 2019 |
PPL Guarantee [Member] | Indemnification Guarantee [Member] | Indemnifications For Entities In Liquidation Sales Of Assets [Member] | Minimum [Member] |  |
Guarantor Obligations [Line Items] |  |
Period that indemnifications generally expire (in years) | 2 years |
PPL Guarantee [Member] | Indemnification Guarantee [Member] | Indemnifications For Entities In Liquidation Sales Of Assets [Member] | Maximum [Member] |  |
Guarantor Obligations [Line Items] |  |
Period that indemnifications generally expire (in years) | 7 years |
PPL Guarantee [Member] | Financial Guarantee [Member] | WPD Guarantee Of Pension And Other Obligations Of Unconsolidated Entities [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 105 |
PPL Electric Guarantee [Member] | Indemnification Guarantee [Member] | Guarantee Of Inventory Value [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 17 |
Expiration date | 2018 |
LKE Guarantee [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 301 |
Term of guarantee (in years) | 12 |
Maximum exposure of guarantee related to terminated lease specific to operational, regulatory and environmental issues | $ 200 |
Maximum exposure of other guarantees expiring related to a terminated lease | $ 100 |
LKE Guarantee [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] | Minimum [Member] |  |
Guarantor Obligations [Line Items] |  |
Expiration date | 2021 |
LKE Guarantee [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] | Maximum [Member] |  |
Guarantor Obligations [Line Items] |  |
Expiration date | 2023 |
LGE And KU Guarantee [Member] | Financial Guarantee [Member] | LGE And KU Guarantee Of Shortfall Related To OVEC [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure inestimable | The maximum exposure and the expiration date of these potential obligations are not presently determinable. |
Contingent proportionate share of OVEC's outstanding debt | $ 120 |
PPL Electric Utilities Corp [Member] | Indemnification Guarantee [Member] | Guarantee Of Inventory Value [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 17 |
Expiration date | 2018 |
LG And E And KU Energy LLC [Member] |  |
Guarantor Obligations [Line Items] |  |
Recorded liability for all guarantees | $ 17 | $ 17
LG And E And KU Energy LLC [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure | $ 301 |
Term of guarantee (in years) | 12 |
Maximum exposure of guarantee related to terminated lease specific to operational, regulatory and environmental issues | $ 200 |
Maximum exposure of other guarantees expiring related to a terminated lease | $ 100 |
LG And E And KU Energy LLC [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] | Minimum [Member] |  |
Guarantor Obligations [Line Items] |  |
Expiration date | 2021 |
LG And E And KU Energy LLC [Member] | Indemnification Guarantee [Member] | Indemnification Of Lease Termination And Other Divestitures [Member] | Maximum [Member] |  |
Guarantor Obligations [Line Items] |  |
Expiration date | 2023 |
LG And E And KU Energy LLC [Member] | Financial Guarantee [Member] | LGE And KU Guarantee Of Shortfall Related To OVEC [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure inestimable | The maximum exposure and the expiration date of these potential obligations are not presently determinable. |
Contingent proportionate share of OVEC's outstanding debt | $ 120 |
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 inestimable | The maximum exposure and the expiration date of these potential obligations are not presently determinable. |
Contingent proportionate share of OVEC's outstanding debt | $ 83 |
Kentucky Utilities Co [Member] | Financial Guarantee [Member] | LGE And KU Guarantee Of Shortfall Related To OVEC [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum exposure inestimable | The maximum exposure and the expiration date of these potential obligations are not presently determinable. |
Contingent proportionate share of OVEC's outstanding debt | $ 37 |

X
- Definition The expiration date of the guarantee or group of similar guarantees. + References No definition available. + Details
Name: | ppl_GuaranteeExpirationDate
Namespace Prefix: | ppl_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum exposure of a guarantee related to the termination of a lease related to certain non-utility generating stations in western Kentucky until July 2009. This portion of the guarantee relates to covering operational, regulatory and environmental commitments and indemnifications made under the agreement. + References No definition available. + Details
Name: | ppl_GuaranteeMaximumExposure2021
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The maximum exposure of other guarantees related to a subsidiary that leased certain non-utility generating stations in western Kentucky until July 2009 not defined earlier. + References No definition available. + Details
Name: | ppl_GuaranteeMaximumExposure2023
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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

X
- References No definition available. + Details
Name: | ppl_OtherGuaranteeNumericAbstract
Namespace Prefix: | ppl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The period, in years, that indemnifications related to the dissolution of entities generally expire after the date of dissolution. + References No definition available. + Details
Name: | ppl_PeriodThatIndemnificationsGenerallyExpire
Namespace Prefix: | ppl_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- 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

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 No definition available. + Details
Name: | us-gaap_GuaranteeObligationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsMaximumExposureInestimable
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Describe the approximate term of the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ppl_GuaranteeByEntityAxis=ppl_PplGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_IndemnificationsRelatedToWpdMidlandsAcquisitionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_IndemnificationsForEntitiesInLiquidationSalesOfAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_WpdGuaranteeOfPensionAndOtherObligationsOfUnconsolidatedEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByEntityAxis=ppl_PplElectricGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_GuaranteeOfInventoryValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByEntityAxis=ppl_LouisvilleGasAndElectricAndKuEnergyGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_IndemnificationsIssuedByLkeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByEntityAxis=ppl_LouisvilleGasAndElectricCompanyAndKentuckyUtilitiesGuaranteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_GuaranteeByDescriptionAxis=ppl_GuaranteeForShortfallRelatedToOhioValleyElectricCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_PplElectricUtilitiesCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_LGAndEAndKUEnergyLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_LouisvilleGasAndElectricCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_KentuckyUtilitiesCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |