Document Type Document Type LG And E And KU Energy LLC [Member] L G And E And K U Energy L L C [Member] A direct wholly owned subsidiary of PPL, a holding company which owns and operates regulated public utilities engaged in the generation, transmission, distribution and sale of electricity and the distribution and sale of natural gas primarily in Kentucky. City Area Code City Area Code Amendment Flag Amendment Flag Legal Entity [Axis] Legal Entity [Axis] Entity Address, State or Province Entity Address, State or Province Soliciting Material Soliciting Material Document Period End Date Document Period End Date 2007 Series A Due 2067 [Member] 2007 Series A Due 2067 [Member] 2007 Series A Due 2067 [Member] Entity Tax Identification Number Entity Tax Identification Number Common Stock [Member] Common Stock [Member] Entity Incorporation, State or Country Code Entity Incorporation State Country Code 1 Two-character EDGAR code representing the state or country of incorporation. Pre-commencement Tender Offer Pre-commencement Tender Offer Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code PPL Electric Utilities Corp [Member] PPL ELECTRIC UTILITIES CORP [Member] A direct subsidiary of PPL and a regulated public utility. PPL Electric delivers electricity in its Pennsylvania service territory and provides electricity supply to retail customers in that territory as a provider of last resort under the Customer Choice Act. Class of Stock [Domain] Class of Stock [Domain] Kentucky Utilities Co [Member] KENTUCKY UTILITIES CO [Member] An indirect subsidiary of PPL and a public utility subsidiary of LKE engaged in the regulated generation, transmission, distribution and sale of electricity primarily in Kentucky. Class of Stock [Axis] Class of Stock [Axis] Entity File Number Entity File Number Entity Central Index Key Entity Central Index Key Trading Symbol Trading Symbol Document Entity [Table] Document Entity [Table] Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package and assemble all relevant information about each entity associated with the document instance. Entity Address, Postal Zip Code Entity Address, Postal Zip Code Local Phone Number Local Phone Number Document Entity Information [Abstract] Document Entity Information [Abstract] Written Communications Written Communications Title of 12(b) Security Title of 12(b) Security Louisville Gas And Electric Co [Member] LOUISVILLE GAS And ELECTRIC CO [Member] An indirect subsidiary of PPL and a public utility subsidiary of LKE engaged in the regulated generation, transmission, distribution and sale of electricity in Kentucky, and distribution and sale of natural gas in Kentucky. Security Exchange Name Security Exchange Name Entity [Domain] Entity [Domain] Entity Address, City or Town Entity Address, City or Town Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer 2013 Series B Due 2073 [Member] 2013 Series B Due 2073 [Member] 2013 Series B Due 2073 [Member] Entity Address, Address Line One Entity Address, Address Line One Entity Emerging Growth Company Entity Emerging Growth Company Entity Registrant Name Entity Registrant Name Document Entity Information [Line Items] Document Entity Information [Line Items] 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.