Related Party Transactions (Tables)

6 Months Ended

Jun. 30, 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 periods ended June 30, 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.

	Three Months				Six Months
	2018		2017		2018		2017
PPL Electric from PPL Services	$	15	$	44	$	31	$	95
LKE from PPL Services	7		5		14		11
PPL Electric from PPL EU Services	41		15		76		33
LG&E from LKS	39		38		77		82
KU from LKS	43		47		85		91

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 periods ended June 30, 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.

	Three Months				Six Months
	2018		2017		2018		2017
PPL Electric from PPL Services	$	15	$	44	$	31	$	95
LKE from PPL Services	7		5		14		11
PPL Electric from PPL EU Services	41		15		76		33
LG&E from LKS	39		38		77		82
KU from LKS	43		47		85		91

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 periods ended June 30, 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.

	Three Months				Six Months
	2018		2017		2018		2017
PPL Electric from PPL Services	$	15	$	44	$	31	$	95
LKE from PPL Services	7		5		14		11
PPL Electric from PPL EU Services	41		15		76		33
LG&E from LKS	39		38		77		82
KU from LKS	43		47		85		91

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 periods ended June 30, 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.

	Three Months				Six Months
	2018		2017		2018		2017
PPL Electric from PPL Services	$	15	$	44	$	31	$	95
LKE from PPL Services	7		5		14		11
PPL Electric from PPL EU Services	41		15		76		33
LG&E from LKS	39		38		77		82
KU from LKS	43		47		85		91