Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2016

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.  

	2016		2015		2014
PPL Electric from PPL Services	$	132	$	125	$	151
LKE from PPL Services	18		16		15
PPL Electric from PPL EU Services	69		60		—
LG&E from LKS	178		155		140
KU from LKS	194		185		165

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.  

	2016		2015		2014
PPL Electric from PPL Services	$	132	$	125	$	151
LKE from PPL Services	18		16		15
PPL Electric from PPL EU Services	69		60		—
LG&E from LKS	178		155		140
KU from LKS	194		185		165

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.  

	2016		2015		2014
PPL Electric from PPL Services	$	132	$	125	$	151
LKE from PPL Services	18		16		15
PPL Electric from PPL EU Services	69		60		—
LG&E from LKS	178		155		140
KU from LKS	194		185		165

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.  

	2016		2015		2014
PPL Electric from PPL Services	$	132	$	125	$	151
LKE from PPL Services	18		16		15
PPL Electric from PPL EU Services	69		60		—
LG&E from LKS	178		155		140
KU from LKS	194		185		165