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Asset Retirement Obligations (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2024 USD ($)
Asset Retirement Obligation [Roll Forward] |
Balance at Beginning of Period | $ 158
Accretion | 6
New Obligation s Incurred | 8
Changes in estimated timing or cost | 1
Obligations settled | (15)
Asset Retirement Obligations, Period Change, Miscellaneous | 2
Balance at End of Period | 160
Louisville Gas And Electric Co [Member] |
Asset Retirement Obligation [Roll Forward] |
Balance at Beginning of Period | 85
Accretion | 3
New Obligation s Incurred | 3
Changes in estimated timing or cost | 1
Obligations settled | (8)
Asset Retirement Obligations, Period Change, Miscellaneous | 0
Balance at End of Period | 84
Kentucky Utilities Co [Member] |
Asset Retirement Obligation [Roll Forward] |
Balance at Beginning of Period | 66
Accretion | 3
New Obligation s Incurred | 5
Changes in estimated timing or cost | (1)
Obligations settled | (7)
Asset Retirement Obligations, Period Change, Miscellaneous | 0
Balance at End of Period | $ 66

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- Definition Change in total asset retirement obligations for the period related to miscellaneous activity. + References No definition available. + Details
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- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement 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 25 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481999/410-20-25-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -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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- Definition Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481879/410-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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- Definition Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481850/410-20-50-1 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of asset retirement obligation (ARO) cost incurred in oil- and gas-producing activities. Includes capitalized cost and cost charged to expense. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477215/932-235-50-18 + Details
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