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Utility Rate Regulation - Other (Details) - Unaffiliated Third Party Entity [Member] - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
PPL Electric [Member] |  |  |  |
Purchases Of Accounts Receivable [Line Items] |  |  |  |
Accounts Receivable, Purchase | $ 439 | $ 404 | $ 1,300 | $ 1,200
Rhode Island Energy |  |  |  |
Purchases Of Accounts Receivable [Line Items] |  |  |  |
Accounts Receivable, Purchase | 90 | 80 | 245 | 234
PPL Electric Utilities Corp [Member] |  |  |  |
Purchases Of Accounts Receivable [Line Items] |  |  |  |
Accounts Receivable, Purchase | $ 439 | $ 404 | $ 1,300 | $ 1,200

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- Definition Accounts receivable purchased under a Public Utility Commission-approved program whereby certain accounts receivable are purchased and recorded at fair value from affiliated or unaffiliated alternative suppliers at a nominal discount. + References No definition available. + Details
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Namespace Prefix: | ppl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of increase from purchase of accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-11 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ppl_ByCompanyAxis=ppl_RhodeIslandEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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