Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2024

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

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

	PPL				LG&E				KU
	2024		2023		2024		2023		2024		2023
ARO at beginning of period	$	158	$	177	$	85	$	86	$	66	$	82
Accretion	8		9		4		4		4		5
Obligations incurred	9		2		3		1		6		1
Changes in estimated timing or cost	4		15		3		11		1		6
Obligations settled	(24)		(39)		(11)		(11)		(13)		(28)
Other	2		(6)		—		(6)				—
ARO at end of period	$	157	$	158	$	84	$	85	$	64	$	66

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				LG&E				KU
	2024		2023		2024		2023		2024		2023
ARO at beginning of period	$	158	$	177	$	85	$	86	$	66	$	82
Accretion	8		9		4		4		4		5
Obligations incurred	9		2		3		1		6		1
Changes in estimated timing or cost	4		15		3		11		1		6
Obligations settled	(24)		(39)		(11)		(11)		(13)		(28)
Other	2		(6)		—		(6)				—
ARO at end of period	$	157	$	158	$	84	$	85	$	64	$	66

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				LG&E				KU
	2024		2023		2024		2023		2024		2023
ARO at beginning of period	$	158	$	177	$	85	$	86	$	66	$	82
Accretion	8		9		4		4		4		5
Obligations incurred	9		2		3		1		6		1
Changes in estimated timing or cost	4		15		3		11		1		6
Obligations settled	(24)		(39)		(11)		(11)		(13)		(28)
Other	2		(6)		—		(6)				—
ARO at end of period	$	157	$	158	$	84	$	85	$	64	$	66