v3.25.2
Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
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 294 306
Restricted Cash, Current 42 1
Cash, Cash Equivalents and Restricted Cash 336 307
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 15 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 $ 11 $ 13