Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2021

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

The changes in the carrying amounts of AROs were as follows.

	PPL		LKE		LG&E		KU
Balance at December 31, 2020	$	182	$	182	$	67	$	115
Accretion	4		4		1		3
Obligations settled	(15)		(15)		(6)		(9)
Balance at March 31, 2021	$	171	$	171	$	62	$	109

LG And E And KU Energy LLC [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

The changes in the carrying amounts of AROs were as follows.

	PPL		LKE		LG&E		KU
Balance at December 31, 2020	$	182	$	182	$	67	$	115
Accretion	4		4		1		3
Obligations settled	(15)		(15)		(6)		(9)
Balance at March 31, 2021	$	171	$	171	$	62	$	109

Louisville Gas And Electric Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

The changes in the carrying amounts of AROs were as follows.

	PPL		LKE		LG&E		KU
Balance at December 31, 2020	$	182	$	182	$	67	$	115
Accretion	4		4		1		3
Obligations settled	(15)		(15)		(6)		(9)
Balance at March 31, 2021	$	171	$	171	$	62	$	109

Kentucky Utilities Co [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

The changes in the carrying amounts of AROs were as follows.

	PPL		LKE		LG&E		KU
Balance at December 31, 2020	$	182	$	182	$	67	$	115
Accretion	4		4		1		3
Obligations settled	(15)		(15)		(6)		(9)
Balance at March 31, 2021	$	171	$	171	$	62	$	109