2.4.0.8101900 - Disclosure - New Accounting Guidance Pending Adoptiontruefalsefalse1false falsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0New Accounting Guidance Pending Adoption [Abstract]2false 2us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdoptedus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse0019. New Accounting Guidance Pending Adoption (PPL, PPL Energy Supply, PPL Electric, LKE, LG&E and KU) Accounting for Obligations Resulting from Joint and Several Liability Arrangements Effective January 1, 2014, the Registrants will retrospectively adopt accounting guidance for the recognition, measurement and disclosure of certain obligations resulting from joint and several liability arrangements when the amount of the obligation is fixed at the reporting date. If the obligation is determined to be in the scope of this guidance, it will be measured as the sum of the amount the reporting entity agreed to pay on the basis of its arrangements among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. This guidance also requires additional disclosures for these obligations. The Registrants are assessing the potential impact of adoption, which is not expected to be material.  Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity Effective January 1, 2014, PPL will prospectively adopt accounting guidance that requires a cumulative translation adjustment to be released into earnings when an entity ceases to have a controlling financial interest in a subsidiary or group of assets within a consolidated foreign entity and the sale or transfer results in the complete or substantially complete liquidation of the foreign entity. For the step acquisition of previously held equity method investments that are foreign entities, this guidance clarifies that the amount of accumulated other comprehensive income that is reclassified and included in the calculation of a gain or loss shall include any foreign currency translation adjustment related to that previously held investment.  The initial adoption of this guidance is not expected to have a significant impact on PPL; however, the impact in future periods could be material.  Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes Effective July 17, 2013, the Registrants adopted accounting guidance that permits the Fed Funds Swap Rate (or Overnight Index Swap Rate) to be used as a U.S. benchmark interest rate for hedge accounting purposes, in addition to interest rates on direct U.S. Treasury obligations and the London Interbank Offer Rate. This guidance also removed the restrictions on using different benchmark interest rates for similar hedges. This guidance is effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of this guidance is not expected to have a significant impact on the Registrants.  Presentation of Unrecognized Tax Benefits When Net Operating Loss Carryforwards, Similar Tax Losses, or Tax Credit Carryforwards Exist Effective January 1, 2014, the Registrants will prospectively adopt accounting guidance that requires an unrecognized tax benefit, or a portion of an unrecognized tax benefit, to be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position, or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets.  The adoption of this guidance is not expected to have a significant impact on the Registrants. falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for a new accounting pronouncement that has been issued but not yet adopted.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 11.M) -URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e31137-122693 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 11 -Section M false0New Accounting Guidance Pending AdoptionfalseNew Accounting Guidance Pending AdoptionUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://pplweb.com/role/NewAccountingGuidancePendingAdoption12