XML 38 R20.htm IDEA: XBRL DOCUMENT
v3.23.3

Asset Retirement Obligations | 9 Months Ended
--- | ---
Sep. 30, 2023
Asset Retirement Obligations [Line Items] |
Asset Retirement Obligations | 15. Asset Retirement Obligations (PPL, LG&E and KU) PPL's, LG&E's and KU's ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the CCR rule. LG&E also has AROs related to natural gas mains and wells. LG&E's and KU's transmission and distribution lines largely operate under perpetual property easement agreements, which do not generally require restoration upon removal of the property. Therefore, no material AROs are recorded for transmission and distribution assets. For LG&E and KU, all ARO accretion and depreciation expenses are reclassified as a regulatory asset or regulatory liability. ARO regulatory assets associated with certain CCR projects are amortized to expense in accordance with regulatory approvals. For other AROs, deferred accretion and depreciation expense is recovered through cost of removal. The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2022 | $ | 177 |  |  | $ | 86 |  |  | $ | 82 |
Accretion | 6 |  |  | 3 |  |  | 3 |
New obligations incurred | 2 |  |  | 1 |  |  | 1 |
Changes in estimated cash flow or settlement date | 14 |  |  | 11 |  |  | 5 |
Obligations settled | (26) |  |  | (9) |  |  | (17) |
Other | (5) |  |  | (6) |  |  | — |
Balance at September 30, 2023 | $ | 168 |  |  | $ | 86 |  |  | $ | 74 |
Louisville Gas And Electric Co [Member] |
Asset Retirement Obligations [Line Items] |
Asset Retirement Obligations | 15. Asset Retirement Obligations (PPL, LG&E and KU) PPL's, LG&E's and KU's ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the CCR rule. LG&E also has AROs related to natural gas mains and wells. LG&E's and KU's transmission and distribution lines largely operate under perpetual property easement agreements, which do not generally require restoration upon removal of the property. Therefore, no material AROs are recorded for transmission and distribution assets. For LG&E and KU, all ARO accretion and depreciation expenses are reclassified as a regulatory asset or regulatory liability. ARO regulatory assets associated with certain CCR projects are amortized to expense in accordance with regulatory approvals. For other AROs, deferred accretion and depreciation expense is recovered through cost of removal. The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2022 | $ | 177 |  |  | $ | 86 |  |  | $ | 82 |
Accretion | 6 |  |  | 3 |  |  | 3 |
New obligations incurred | 2 |  |  | 1 |  |  | 1 |
Changes in estimated cash flow or settlement date | 14 |  |  | 11 |  |  | 5 |
Obligations settled | (26) |  |  | (9) |  |  | (17) |
Other | (5) |  |  | (6) |  |  | — |
Balance at September 30, 2023 | $ | 168 |  |  | $ | 86 |  |  | $ | 74 |
Kentucky Utilities Co [Member] |
Asset Retirement Obligations [Line Items] |
Asset Retirement Obligations | 15. Asset Retirement Obligations (PPL, LG&E and KU) PPL's, LG&E's and KU's ARO liabilities are primarily related to CCR closure costs. See Note 10 for information on the CCR rule. LG&E also has AROs related to natural gas mains and wells. LG&E's and KU's transmission and distribution lines largely operate under perpetual property easement agreements, which do not generally require restoration upon removal of the property. Therefore, no material AROs are recorded for transmission and distribution assets. For LG&E and KU, all ARO accretion and depreciation expenses are reclassified as a regulatory asset or regulatory liability. ARO regulatory assets associated with certain CCR projects are amortized to expense in accordance with regulatory approvals. For other AROs, deferred accretion and depreciation expense is recovered through cost of removal. The changes in the carrying amounts of AROs were as follows.
| PPL |  | LG&E |  | KU
Balance at December 31, 2022 | $ | 177 |  |  | $ | 86 |  |  | $ | 82 |
Accretion | 6 |  |  | 3 |  |  | 3 |
New obligations incurred | 2 |  |  | 1 |  |  | 1 |
Changes in estimated cash flow or settlement date | 14 |  |  | 11 |  |  | 5 |
Obligations settled | (26) |  |  | (9) |  |  | (17) |
Other | (5) |  |  | (6) |  |  | — |
Balance at September 30, 2023 | $ | 168 |  |  | $ | 86 |  |  | $ | 74 |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | ppl_AssetRetirementObligationsLineItems
Namespace Prefix: | ppl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//410-20/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 20 -Topic 410 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-2 + Details
Name: | us-gaap_AssetRetirementObligationDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

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