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v3.25.1

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Summary Of Significant Accounting Policies [Line Items] |  |
Goodwill | $ 2,247 | $ 2,247
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow Statement [Line Items] |  |
Cash and cash equivalents | 312 | 306
Restricted Cash, Current | 42 | 1
Cash, Cash Equivalents and Restricted Cash | 354 | 307
PPL Electric Utilities Corp [Member] |  |
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow Statement [Line Items] |  |
Cash and cash equivalents | 27 | 24
Louisville Gas And Electric Co [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Goodwill | 389 | 389
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow Statement [Line Items] |  |
Cash and cash equivalents | 10 | 8
Kentucky Utilities Co [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Goodwill | 607 | 607
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow Statement [Line Items] |  |
Cash and cash equivalents | $ 14 | $ 13

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