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Asset Retirement Obligations (Tables) | 6 Months Ended
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Jun. 30, 2025
Asset Retirement Obligation [Line Items] |
Asset Retirement Obligation Roll Forward | The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2024 | $ | 157 |  |  | $ | 84 |  |  | $ | 64 |
Accretion | 4 |  |  | 2 |  |  | 2 |
Obligations settled | (8) |  |  | (4) |  |  | (4) |
Balance at June 30, 2025 | $ | 153 |  |  | $ | 82 |  |  | $ | 62 |
Louisville Gas And Electric Co [Member] |
Asset Retirement Obligation [Line Items] |
Asset Retirement Obligation Roll Forward | The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2024 | $ | 157 |  |  | $ | 84 |  |  | $ | 64 |
Accretion | 4 |  |  | 2 |  |  | 2 |
Obligations settled | (8) |  |  | (4) |  |  | (4) |
Balance at June 30, 2025 | $ | 153 |  |  | $ | 82 |  |  | $ | 62 |
Kentucky Utilities Co [Member] |
Asset Retirement Obligation [Line Items] |
Asset Retirement Obligation Roll Forward | The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2024 | $ | 157 |  |  | $ | 84 |  |  | $ | 64 |
Accretion | 4 |  |  | 2 |  |  | 2 |
Obligations settled | (8) |  |  | (4) |  |  | (4) |
Balance at June 30, 2025 | $ | 153 |  |  | $ | 82 |  |  | $ | 62 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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