Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 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	2		1		1
Changes in estimated cash flow or settlement date	(2)		—		—
Obligations settled	(7)		(2)		(5)
Other	(5)		(6)		—
Balance at March 31, 2023	$	165	$	79	$	78

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	2		1		1
Changes in estimated cash flow or settlement date	(2)		—		—
Obligations settled	(7)		(2)		(5)
Other	(5)		(6)		—
Balance at March 31, 2023	$	165	$	79	$	78

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	2		1		1
Changes in estimated cash flow or settlement date	(2)		—		—
Obligations settled	(7)		(2)		(5)
Other	(5)		(6)		—
Balance at March 31, 2023	$	165	$	79	$	78