XML 86 R64.htm IDEA: XBRL DOCUMENT
v3.20.2

Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis Table (Details) - Recurring Fair Value Measurements [Member] - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Assets |  |
Cash and cash equivalents | $ 746 | $ 815
Restricted cash and cash equivalents | 22 | 21
Special Use Funds [Abstract] |  |
Commingled debt fund measured at NAV | 27 | 29
Commingled equity fund measured at NAV | 27 | 27
Total special use funds | 54 | 56
Price risk management assets: |  |
Foreign currency contracts | 42 | 142
Cross-currency swaps | 147 | 154
Total price risk management assets | 189 | 296
Total Assets | 1,011 | 1,188
Price risk management liabilities: |  |
Interest rate swaps | 34 | 21
Foreign currency contracts | 1 | 5
Total price risk management liabilities | 35 | 26
Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 746 | 815
Restricted cash and cash equivalents | 22 | 21
Special Use Funds [Abstract] |  |
Total special use funds | 0 | 0
Price risk management assets: |  |
Foreign currency contracts | 0 | 0
Cross-currency swaps | 0 | 0
Total price risk management assets | 0 | 0
Total Assets | 768 | 836
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Foreign currency contracts | 0 | 0
Total price risk management liabilities | 0 | 0
Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Special Use Funds [Abstract] |  |
Total special use funds | 0 | 0
Price risk management assets: |  |
Foreign currency contracts | 42 | 142
Cross-currency swaps | 147 | 154
Total price risk management assets | 189 | 296
Total Assets | 189 | 296
Price risk management liabilities: |  |
Interest rate swaps | 34 | 21
Foreign currency contracts | 1 | 5
Total price risk management liabilities | 35 | 26
Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Special Use Funds [Abstract] |  |
Total special use funds | 0 | 0
Price risk management assets: |  |
Foreign currency contracts | 0 | 0
Cross-currency swaps | 0 | 0
Total price risk management assets | 0 | 0
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Foreign currency contracts | 0 | 0
Total price risk management liabilities | 0 | 0
PPL Electric Utilities Corp [Member] |  |
Assets |  |
Cash and cash equivalents | 26 | 262
Restricted cash and cash equivalents | 2 | 2
Price risk management assets: |  |
Total Assets | 28 | 264
PPL Electric Utilities Corp [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 26 | 262
Restricted cash and cash equivalents | 2 | 2
Price risk management assets: |  |
Total Assets | 28 | 264
PPL Electric Utilities Corp [Member] | Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
PPL Electric Utilities Corp [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
LG And E And KU Energy LLC [Member] |  |
Assets |  |
Cash and cash equivalents | 25 | 27
Cash collateral posted to counterparties | 1 | 0
Price risk management assets: |  |
Total Assets | 26 | 27
Price risk management liabilities: |  |
Interest rate swaps | 26 | 21
Total price risk management liabilities | 26 | 21
LG And E And KU Energy LLC [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 25 | 27
Cash collateral posted to counterparties | 1 | 0
Price risk management assets: |  |
Total Assets | 26 | 27
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Total price risk management liabilities | 0 | 0
LG And E And KU Energy LLC [Member] | Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Cash collateral posted to counterparties | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 26 | 21
Total price risk management liabilities | 26 | 21
LG And E And KU Energy LLC [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Cash collateral posted to counterparties | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Total price risk management liabilities | 0 | 0
Louisville Gas And Electric Co [Member] |  |
Assets |  |
Cash and cash equivalents | 10 | 15
Cash collateral posted to counterparties | 1 | 0
Price risk management assets: |  |
Total Assets | 11 | 15
Price risk management liabilities: |  |
Interest rate swaps | 26 | 21
Total price risk management liabilities | 26 | 21
Louisville Gas And Electric Co [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 10 | 15
Cash collateral posted to counterparties | 1 | 0
Price risk management assets: |  |
Total Assets | 11 | 15
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Total price risk management liabilities | 0 | 0
Louisville Gas And Electric Co [Member] | Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Cash collateral posted to counterparties | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 26 | 21
Total price risk management liabilities | 26 | 21
Louisville Gas And Electric Co [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Cash collateral posted to counterparties | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Total price risk management liabilities | 0 | 0
Kentucky Utilities Co [Member] |  |
Assets |  |
Cash and cash equivalents | 15 | 12
Price risk management assets: |  |
Total Assets | 15 | 12
Kentucky Utilities Co [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 15 | 12
Price risk management assets: |  |
Total Assets | 15 | 12
Kentucky Utilities Co [Member] | Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Kentucky Utilities Co [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Price risk management assets: |  |
Total Assets | $ 0 | $ 0

X
- Definition Fair value of assets related to derivative instruments whose primary underlying risk is tied to interest rates and foreign exchange rates. + References No definition available. + Details
Name: | ppl_FairValueAssetsMeasuredOnRecurringBasisCrossCurrencySwaps
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References No definition available. + Details
Name: | ppl_FairValueAssetsMeasuredOnRecurringBasisDerivativeFinancialInstruments
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The combined current and noncurrent carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. + References No definition available. + Details
Name: | ppl_FairValueAssetsMeasuredOnRecurringBasisRestrictedCashAndCashEquivalents
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The combined current and noncurrent asset amounts that have been measured at their fair value using net asset value as of the measurement date that are invested in commingled debt funds. + References No definition available. + Details
Name: | ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledDebtFund
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The combined current and noncurrent asset amounts that have been measured at their fair value using net asset value as of the measurement date that are invested in commingled equity funds. + References No definition available. + Details
Name: | ppl_FairValueAssetsMeasuredUsingNetAssetValueLimitedToUseCommingledEquityFund
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total healthcare trust fund assets that are limited in use. + References No definition available. + Details
Name: | ppl_HealthCareTrustFundAssetsLimitedToUse
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | ppl_SpecialUseFundsAbstract
Namespace Prefix: | ppl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps. + References No definition available. + Details
Name: | us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
Name: | us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities. + References No definition available. + Details
Name: | us-gaap_InterestRateDerivativeLiabilitiesAtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of other assets. + References No definition available. + Details
Name: | us-gaap_OtherAssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
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: |