Preferred Securities	12 Months Ended
Dec. 31, 2013
Preferred Securities [Line Items]
Preferred Securities	3. Preferred Securities (PPL) In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income. PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011. (PPL Electric) PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate). (LG&E) LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011. (KU) KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.
PPL Electric Utilities Corp [Member]
Preferred Securities [Line Items]
Preferred Securities	3. Preferred Securities (PPL) In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income. PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011. (PPL Electric) PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate). (LG&E) LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011. (KU) KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.
Louisville Gas And Electric Co [Member]
Preferred Securities [Line Items]
Preferred Securities	3. Preferred Securities (PPL) In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income. PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011. (PPL Electric) PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate). (LG&E) LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011. (KU) KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.
Kentucky Utilities Co [Member]
Preferred Securities [Line Items]
Preferred Securities	3. Preferred Securities (PPL) In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income. PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011. (PPL Electric) PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate). (LG&E) LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011. (KU) KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.

3. Preferred Securities

(PPL)

In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income.

PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011.

(PPL Electric)

PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate).

(LG&E)

LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011.

(KU)

KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.

Preferred Securities [Line Items]

Preferred Securities

3. Preferred Securities

(PPL)

In June 2012, PPL Electric redeemed all of its preference stock at par value, without premium ($250 million in the aggregate). Related dividend requirements of $4 million for 2012 and $16 million for 2011 have been included in "Net Income Attributable to Noncontrolling Interests" on the Statements of Income.

PPL is authorized to issue up to 10 million shares of preferred stock. No PPL preferred stock was issued or outstanding in 2013, 2012, or 2011.

(PPL Electric)

PPL Electric is authorized to issue up to 20,629,936 shares of preferred stock. No PPL Electric preferred stock was issued or outstanding in 2013, 2012, or 2011. Prior to October 31, 2013, PPL Electric was authorized to issue up to 10 million shares of preference stock. PPL Electric had 2.5 million shares of 6.25% Series Preference Stock (Preference Shares) issued and outstanding at December 31, 2011. In June 2012, PPL Electric redeemed all 2.5 million shares of its outstanding Preference Shares, par value of $100 per share. The price paid for the redemption was the par value, without premium ($250 million in the aggregate).

(LG&E)

LG&E is authorized to issue up to 1,720,000 shares of preferred stock at a $25 par value and 6,750,000 shares of preferred stock without par value. LG&E had no preferred stock issued or outstanding in 2013, 2012 or 2011.

(KU)

KU is authorized to issue up to 5,300,000 shares of preferred stock and 2,000,000 shares of preference stock without par value. KU had no preferred or preference stock issued or outstanding in 2013, 2012 or 2011.

Preferred Securities [Line Items]