Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2018

PPL Electric Utilities Corp [Member]

Related Party Transactions [Line Items]

Intercompany Support Cost Allocations

PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.  

	2018		2017		2016
PPL Electric from PPL Services	$	59	$	182	$	132
LKE from PPL Services	26		20		18
PPL Electric from PPL EU Services	148		64		69
LG&E from LKS	151		169		178
KU from LKS	169		190		194

LG And E And KU Energy LLC [Member]

Related Party Transactions [Line Items]

Intercompany Support Cost Allocations

PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.  

	2018		2017		2016
PPL Electric from PPL Services	$	59	$	182	$	132
LKE from PPL Services	26		20		18
PPL Electric from PPL EU Services	148		64		69
LG&E from LKS	151		169		178
KU from LKS	169		190		194

Louisville Gas And Electric Co [Member]

Related Party Transactions [Line Items]

Intercompany Support Cost Allocations

PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.  

	2018		2017		2016
PPL Electric from PPL Services	$	59	$	182	$	132
LKE from PPL Services	26		20		18
PPL Electric from PPL EU Services	148		64		69
LG&E from LKS	151		169		178
KU from LKS	169		190		194

Kentucky Utilities Co [Member]

Related Party Transactions [Line Items]

Intercompany Support Cost Allocations

PPL Services, PPL EU Services and LKS charged the following amounts for the years ended December 31, including amounts applied to accounts that are further distributed between capital and expense on the books of the recipients, based on methods that are believed to be reasonable.  

	2018		2017		2016
PPL Electric from PPL Services	$	59	$	182	$	132
LKE from PPL Services	26		20		18
PPL Electric from PPL EU Services	148		64		69
LG&E from LKS	151		169		178
KU from LKS	169		190		194