Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2023

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
Balance at December 31, 2022	$	177	$	86	$	82
Accretion	6		3		3
New obligations incurred	2		1		1
Changes in estimated cash flow or settlement date	14		11		5
Obligations settled	(26)		(9)		(17)
Other	(5)		(6)		—
Balance at September 30, 2023	$	168	$	86	$	74

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
Balance at December 31, 2022	$	177	$	86	$	82
Accretion	6		3		3
New obligations incurred	2		1		1
Changes in estimated cash flow or settlement date	14		11		5
Obligations settled	(26)		(9)		(17)
Other	(5)		(6)		—
Balance at September 30, 2023	$	168	$	86	$	74

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
Balance at December 31, 2022	$	177	$	86	$	82
Accretion	6		3		3
New obligations incurred	2		1		1
Changes in estimated cash flow or settlement date	14		11		5
Obligations settled	(26)		(9)		(17)
Other	(5)		(6)		—
Balance at September 30, 2023	$	168	$	86	$	74