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v3.22.1

Asset Retirement Obligations (Tables) | 3 Months Ended
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Mar. 31, 2022
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, 2021 | $ | 189 |  |  | $ | 84 |  |  | $ | 105 |
Accretion | 4 |  |  | 1 |  |  | 3 |
Changes in estimated timing or cost | 1 |  |  | 1 |  |  | — |
Obligations settled | (13) |  |  | (7) |  |  | (6) |
Balance at March 31, 2022 | $ | 181 |  |  | $ | 79 |  |  | $ | 102 |
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, 2021 | $ | 189 |  |  | $ | 84 |  |  | $ | 105 |
Accretion | 4 |  |  | 1 |  |  | 3 |
Changes in estimated timing or cost | 1 |  |  | 1 |  |  | — |
Obligations settled | (13) |  |  | (7) |  |  | (6) |
Balance at March 31, 2022 | $ | 181 |  |  | $ | 79 |  |  | $ | 102 |
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, 2021 | $ | 189 |  |  | $ | 84 |  |  | $ | 105 |
Accretion | 4 |  |  | 1 |  |  | 3 |
Changes in estimated timing or cost | 1 |  |  | 1 |  |  | — |
Obligations settled | (13) |  |  | (7) |  |  | (6) |
Balance at March 31, 2022 | $ | 181 |  |  | $ | 79 |  |  | $ | 102 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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