XML 88 R67.htm IDEA: XBRL DOCUMENT
v3.25.1

Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis Table (Details) - Recurring Fair Value Measurements [Member] - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Assets |  |
Cash and cash equivalents | $ 312 | $ 306
Restricted cash and cash equivalents | 28 | 33
Total Cash, Cash Equivalents and Restricted Cash | 340 | 339
Special Use Funds [Abstract] |  |
Money market fund | 1 | 1
Commingled debt fund measured at NAV | 8 | 10
Commingled equity fund measured at NAV | 7 | 8
Total special use funds | 16 | 19
Gas Contracts | 22 | 9
Price risk management assets: |  |
Total Assets | 378 | 367
Price risk management liabilities: |  |
Interest rate swaps | 5 | 3
Gas Contracts | 6 | 13
Total price risk management liabilities | 11 | 16
Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 312 | 306
Restricted cash and cash equivalents | 28 | 33
Total Cash, Cash Equivalents and Restricted Cash | 340 | 339
Special Use Funds [Abstract] |  |
Money market fund | 1 | 1
Total special use funds | 1 | 1
Gas Contracts | 0 | 0
Price risk management assets: |  |
Total Assets | 341 | 340
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Gas 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
Total Cash, Cash Equivalents and Restricted Cash | 0 | 0
Special Use Funds [Abstract] |  |
Money market fund | 0 | 0
Total special use funds | 0 | 0
Gas Contracts | 22 | 4
Price risk management assets: |  |
Total Assets | 22 | 4
Price risk management liabilities: |  |
Interest rate swaps | 5 | 3
Gas Contracts | 0 | 10
Total price risk management liabilities | 5 | 13
Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Total Cash, Cash Equivalents and Restricted Cash | 0 | 0
Special Use Funds [Abstract] |  |
Money market fund | 0 | 0
Total special use funds | 0 | 0
Gas Contracts | 0 | 5
Price risk management assets: |  |
Total Assets | 0 | 5
Price risk management liabilities: |  |
Interest rate swaps | 0 | 0
Gas Contracts | 6 | 3
Total price risk management liabilities | 6 | 3
Level 3 [Member] | Gas Contracts |  |
Price risk management liabilities: |  |
Gas Contracts, Liability, Settlements | 0 |
Gas Contracts, Asset (Liability), Balance | 6 | (2)
Total unrealized gains (losses) on Regulatory Asset/Regulatory Liability | 8 |
PPL Electric Utilities Corp [Member] |  |
Assets |  |
Cash and cash equivalents | 27 | 24
Price risk management assets: |  |
Total Assets | 27 | 24
PPL Electric Utilities Corp [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 27 | 24
Price risk management assets: |  |
Total Assets | 27 | 24
PPL Electric Utilities Corp [Member] | Level 2 [Member] |  |
Assets |  |
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
Price risk management assets: |  |
Total Assets | 0 | 0
Louisville Gas And Electric Co [Member] |  |
Assets |  |
Cash and cash equivalents | 10 | 8
Restricted cash and cash equivalents | 13 | 16
Total Cash, Cash Equivalents and Restricted Cash | 23 | 24
Price risk management assets: |  |
Total Assets | 23 | 24
Price risk management liabilities: |  |
Interest rate swaps | 5 | 3
Total price risk management liabilities | 5 | 3
Louisville Gas And Electric Co [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 10 | 8
Restricted cash and cash equivalents | 13 | 16
Total Cash, Cash Equivalents and Restricted Cash | 23 | 24
Price risk management assets: |  |
Total Assets | 23 | 24
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
Restricted cash and cash equivalents | 0 | 0
Total Cash, Cash Equivalents and Restricted Cash | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Price risk management liabilities: |  |
Interest rate swaps | 5 | 3
Total price risk management liabilities | 5 | 3
Louisville Gas And Electric Co [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Total Cash, Cash Equivalents and Restricted Cash | 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 | 14 | 13
Restricted cash and cash equivalents | 13 | 16
Total Cash, Cash Equivalents and Restricted Cash | 27 | 29
Price risk management assets: |  |
Total Assets | 27 | 29
Kentucky Utilities Co [Member] | Level 1 [Member] |  |
Assets |  |
Cash and cash equivalents | 14 | 13
Restricted cash and cash equivalents | 13 | 16
Total Cash, Cash Equivalents and Restricted Cash | 27 | 29
Price risk management assets: |  |
Total Assets | 27 | 29
Kentucky Utilities Co [Member] | Level 2 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Total Cash, Cash Equivalents and Restricted Cash | 0 | 0
Price risk management assets: |  |
Total Assets | 0 | 0
Kentucky Utilities Co [Member] | Level 3 [Member] |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Restricted cash and cash equivalents | 0 | 0
Total Cash, Cash Equivalents and Restricted Cash | 0 | 0
Price risk management assets: |  |
Total Assets | $ 0 | $ 0

X
- Definition The combined current and noncurrent carrying amounts of special use funds that are limited in use which are invested in money markets. + References No definition available. + Details
Name: | ppl_FairValueAssetMeasuredOnRecurringBasisLimitedToUseMoneyMarket
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 Fair value in a liability position of Gas Contracts for purchase + References No definition available. + Details
Name: | ppl_GasContractsLiability
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
- Definition Total fair value of cash, cash equivalents and restricted cash as of the period ended. + References No definition available. + Details
Name: | ppl_TotalCashCashEquivalentsAndRestrictedCashFairValue
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 asset recognized for present right to economic benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + 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://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-22 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 21 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-21 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-20 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483444/210-20-55-15 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483466/210-20-50-3 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4D -Subparagraph (c)(2) -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
Name: | us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of contract to purchase gas. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E + Details
Name: | us-gaap_GasPurchaseContractFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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
- 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: | us-gaap_FairValueByAssetClassAxis=ppl_GasContractsMember
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_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: |