Preferred Securities (Details) (USD $) In Millions, except Share data, unless otherwise specified
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12 Months Ended |
1 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Jun. 30, 2012
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Oct. 31, 2013
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Preferred Securities [Line Items] |
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Value of stock redeemed including accumulated dividends |
$ 0us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock |
$ 0us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock |
$ 250us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock |
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Preferred Stock [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
10,000,000us-gaap_PreferredStockSharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |
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Preference Stock [Member] |
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Preferred Securities [Line Items] |
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Aggregate value of stock redeemed |
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250us-gaap_StockRedeemedOrCalledDuringPeriodValue / us-gaap_StatementClassOfStockAxis = ppl_PreferenceStockMember |
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PPL Electric Utilities Corp [Member] |
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Preferred Securities [Line Items] |
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Dividend requirements on noncontrolling interests |
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4us-gaap_DividendsPreferredStockCash / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember |
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Value of stock redeemed including accumulated dividends |
$ 0us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember |
$ 0us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember |
$ 250us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember |
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PPL Electric Utilities Corp [Member] | Preferred Stock [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
20,629,936us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |
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PPL Electric Utilities Corp [Member] | Preference Stock [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
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10,000,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember / us-gaap_StatementClassOfStockAxis = ppl_PreferenceStockMember |
Percentage rate on stock |
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6.25%us-gaap_PreferredStockDividendRatePercentage / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember / us-gaap_StatementClassOfStockAxis = ppl_PreferenceStockMember |
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PPL Electric Utilities Corp [Member] | Series Preference Stock [Member] |
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Preferred Securities [Line Items] |
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Number of shares of stock redeemed |
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2,500,000us-gaap_StockRedeemedOrCalledDuringPeriodShares / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember / us-gaap_StatementClassOfStockAxis = ppl_SeriesPreferenceStockMember |
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Par value of stock |
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$ 100us-gaap_PreferredStockParOrStatedValuePerShare / dei_LegalEntityAxis = ppl_PplElectricUtilitiesCorpMember / us-gaap_StatementClassOfStockAxis = ppl_SeriesPreferenceStockMember |
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Louisville Gas And Electric Co [Member] | Preferred Stock [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
1,720,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_LouisvilleGasAndElectricCoMember / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |
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Par value of stock |
$ 25us-gaap_PreferredStockParOrStatedValuePerShare / dei_LegalEntityAxis = ppl_LouisvilleGasAndElectricCoMember / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |
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Louisville Gas And Electric Co [Member] | Preferred Stock Without Par Value [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
6,750,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_LouisvilleGasAndElectricCoMember / us-gaap_StatementClassOfStockAxis = ppl_PreferredStockWithoutParValueMember |
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No par value of stock |
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Kentucky Utilities Co [Member] | Preferred Stock Without Par Value [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
5,300,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_KentuckyUtilitiesCoMember / us-gaap_StatementClassOfStockAxis = ppl_PreferredStockWithoutParValueMember |
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No par value of stock |
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Kentucky Utilities Co [Member] | Preference Stock Without Par Value [Member] |
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Preferred Securities [Line Items] |
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Shares authorized |
2,000,000us-gaap_PreferredStockSharesAuthorized / dei_LegalEntityAxis = ppl_KentuckyUtilitiesCoMember / us-gaap_StatementClassOfStockAxis = ppl_PreferenceStockWithoutParValueMember |
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No par value of stock |
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