2.4.0.8301600 - Disclosure - Asset Retirement Obligations (Tables)truefalsefalse1false falsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:001true 3ppl_AssetRetirementObligationLineItemsppl_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Retirement Obligation [Line Items]2false 4us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">16. Asset Retirement Obligations</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="5" style="width: 284px; text-align:left;border-color:#000000;min-width:284px;">(PPL, PPL Energy Supply, LKE, LG&E and KU)</td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="9" style="width: 426px; text-align:left;border-color:#000000;min-width:426px;">The changes in the carrying amounts of AROs were as follows.</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">Energy Supply</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LKE</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LG&E</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">KU</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at December 31, 2012</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 552</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 375</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 131</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 62</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 69</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Accretion expense</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 18</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 14</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 3</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 2</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Changes in estimated cash flow or settlement date</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (1)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Effect of foreign currency exchange rates</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Obligations settled</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (6)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at June 30, 2013</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 561</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 385</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 132</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 61</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 71</td></tr></table></div>falsefalsefalsenonnum:textBlockItemTypenaTabular 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 false0Asset Retirement Obligation Roll Forward3false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2false truefalseFROM_Jan01_2013_TO_Jun30_2013_dei_LegalEntityAxis_PplEnergySupplyLLCMemberhttp://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:00falsefalsePPL Energy Supply LLC [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldippl_PplEnergySupplyLLCMemberdei_LegalEntityAxisexplicitMembernanafalse0PPL Energy Supply LLC [Member]4true 3ppl_AssetRetirementObligationLineItemsppl_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Retirement Obligation [Line Items]5false 4us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">16. Asset Retirement Obligations</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="5" style="width: 284px; text-align:left;border-color:#000000;min-width:284px;">(PPL, PPL Energy Supply, LKE, LG&E and KU)</td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="9" style="width: 426px; text-align:left;border-color:#000000;min-width:426px;">The changes in the carrying amounts of AROs were as follows.</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">Energy Supply</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LKE</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LG&E</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">KU</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at December 31, 2012</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 552</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 375</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 131</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 62</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 69</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Accretion expense</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 18</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 14</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 3</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 2</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Changes in estimated cash flow or settlement date</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (1)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Effect of foreign currency exchange rates</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Obligations settled</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (6)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at June 30, 2013</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 561</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 385</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 132</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 61</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 71</td></tr></table></div>falsefalsefalsenonnum:textBlockItemTypenaTabular 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 false0Asset Retirement Obligation Roll Forward6false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse3false truefalseFROM_Jan01_2013_TO_Jun30_2013_dei_LegalEntityAxis_LGAndEAndKUEnergyLLCMemberhttp://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseLG And E And KU Energy LLC [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldippl_LGAndEAndKUEnergyLLCMemberdei_LegalEntityAxisexplicitMembernanafalse0LG And E And KU Energy LLC [Member]7true 3ppl_AssetRetirementObligationLineItemsppl_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Retirement Obligation [Line Items]8false 4us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">16. Asset Retirement Obligations</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="5" style="width: 284px; text-align:left;border-color:#000000;min-width:284px;">(PPL, PPL Energy Supply, LKE, LG&E and KU)</td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="9" style="width: 426px; text-align:left;border-color:#000000;min-width:426px;">The changes in the carrying amounts of AROs were as follows.</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">Energy Supply</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LKE</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LG&E</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">KU</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at December 31, 2012</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 552</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 375</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 131</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 62</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 69</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Accretion expense</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 18</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 14</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 3</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 2</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Changes in estimated cash flow or settlement date</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (1)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Effect of foreign currency exchange rates</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Obligations settled</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (6)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at June 30, 2013</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 561</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 385</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 132</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 61</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 71</td></tr></table></div>falsefalsefalsenonnum:textBlockItemTypenaTabular 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 false0Asset Retirement Obligation Roll Forward9false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse4false truefalseFROM_Jan01_2013_TO_Jun30_2013_dei_LegalEntityAxis_LouisvilleGasAndElectricCoMemberhttp://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseLouisville Gas And Electric Co [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldippl_LouisvilleGasAndElectricCoMemberdei_LegalEntityAxisexplicitMembernanafalse0Louisville Gas And Electric Co [Member]10true 3ppl_AssetRetirementObligationLineItemsppl_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Retirement Obligation [Line Items]11false 4us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">16. Asset Retirement Obligations</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="5" style="width: 284px; text-align:left;border-color:#000000;min-width:284px;">(PPL, PPL Energy Supply, LKE, LG&E and KU)</td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="9" style="width: 426px; text-align:left;border-color:#000000;min-width:426px;">The changes in the carrying amounts of AROs were as follows.</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">Energy Supply</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LKE</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LG&E</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">KU</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at December 31, 2012</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 552</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 375</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 131</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 62</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 69</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Accretion expense</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 18</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 14</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 3</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 2</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Changes in estimated cash flow or settlement date</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (1)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Effect of foreign currency exchange rates</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Obligations settled</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (6)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at June 30, 2013</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 561</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 385</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 132</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 61</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 71</td></tr></table></div>falsefalsefalsenonnum:textBlockItemTypenaTabular 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 false0Asset Retirement Obligation Roll Forward12false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse5false truefalseFROM_Jan01_2013_TO_Jun30_2013_dei_LegalEntityAxis_KentuckyUtilitiesCoMemberhttp://www.sec.gov/CIK0000922224duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseKentucky Utilities Co [Member]dei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldippl_KentuckyUtilitiesCoMemberdei_LegalEntityAxisexplicitMembernanafalse0Kentucky Utilities Co [Member]13true 3ppl_AssetRetirementObligationLineItemsppl_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Asset Retirement Obligation [Line Items]14false 4us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">16. Asset Retirement Obligations</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="5" style="width: 284px; text-align:left;border-color:#000000;min-width:284px;">(PPL, PPL Energy Supply, LKE, LG&E and KU)</td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="9" style="width: 426px; text-align:left;border-color:#000000;min-width:426px;">The changes in the carrying amounts of AROs were as follows.</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:left;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">PPL</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">Energy Supply</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LKE</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">LG&E</td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 72px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:72px;">KU</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td style="width: 222px; text-align:left;border-color:#000000;min-width:222px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:center;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at December 31, 2012</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 552</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 375</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 131</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 62</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 69</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Accretion expense</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 18</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 14</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 3</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 2</td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Changes in estimated cash flow or settlement date</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (1)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> 1</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Effect of foreign currency exchange rates</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td style="width: 20px; text-align:left;border-color:#000000;min-width:20px;"> </td><td colspan="2" style="width: 242px; text-align:left;border-color:#000000;min-width:242px;">Obligations settled</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (6)</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> (3)</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:12px;"> </td><td style="width: 60px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:60px;"> </td></tr><tr style="height: 12px"><td colspan="3" style="width: 262px; text-align:left;border-color:#000000;min-width:262px;">Balance at June 30, 2013</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 561</td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 385</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 132</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 61</td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 12px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:12px;">$</td><td style="width: 60px; border-top-style:solid;border-top-width:1px;border-bottom-style:double;border-bottom-width:3px;text-align:right;border-color:#000000;min-width:60px;"> 71</td></tr></table></div>falsefalsefalsenonnum:textBlockItemTypenaTabular 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.Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 false0Asset Retirement Obligation Roll ForwardfalseAsset Retirement Obligations (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://pplweb.com/role/DisclosureAssetRetirementObligationsTables114