Related Party Transactions (Tables)

3 Months Ended

Mar. 31, 2013

PPL Energy Supply LLC [Member]

Related Party Transactions [Line Items]

Intercompany Service Cost Allocations

PPL Services charged the following amountsfor the periods ended March 31, which PPL management believes are reasonable,including amounts applied to accounts that are further distributed between capital and expense.

	Three Months
	2013		2012
PPL Energy Supply	$	57	$	57
PPL Electric		38		42
LKE		4		5

PPL Electric Utilities Corp [Member]

Related Party Transactions [Line Items]

Intercompany Service Cost Allocations

PPL Services charged the following amountsfor the periods ended March 31, which PPL management believes are reasonable,including amounts applied to accounts that are further distributed between capital and expense.

	Three Months
	2013		2012
PPL Energy Supply	$	57	$	57
PPL Electric		38		42
LKE		4		5

LG And E And KU Energy LLC [Member]

Related Party Transactions [Line Items]

Intercompany Service Cost Allocations

PPL Services charged the following amountsfor the periods ended March 31, which PPL management believes are reasonable,including amounts applied to accounts that are further distributed between capital and expense.

	Three Months
	2013		2012
PPL Energy Supply	$	57	$	57
PPL Electric		38		42
LKE		4		5

Louisville Gas And Electric Co [Member]

Related Party Transactions [Line Items]

Intercompany Billings

LKS charged the amounts in the table belowfor the periods ended March 31,which LKE management believes are reasonable, including amounts that are further distributed between capital and expense.

	Three Months
	2013		2012
LG&E	$	39	$	41
KU		66		46

Kentucky Utilities Co [Member]

Related Party Transactions [Line Items]

Intercompany Billings

LKS charged the amounts in the table belowfor the periods ended March 31,which LKE management believes are reasonable, including amounts that are further distributed between capital and expense.

	Three Months
	2013		2012
LG&E	$	39	$	41
KU		66		46