Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2022

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, 2021	$	189	$	84	$	105
Acquisition of RIE (a)	10		—		—
Accretion	4		3		1
New obligations incurred	2		2		—
Changes in estimated timing or cost	10		9		1
Obligations settled	(35)		(12)		(23)
Balance at September 30, 2022	$	180	$	86	$	84

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, 2021	$	189	$	84	$	105
Acquisition of RIE (a)	10		—		—
Accretion	4		3		1
New obligations incurred	2		2		—
Changes in estimated timing or cost	10		9		1
Obligations settled	(35)		(12)		(23)
Balance at September 30, 2022	$	180	$	86	$	84

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, 2021	$	189	$	84	$	105
Acquisition of RIE (a)	10		—		—
Accretion	4		3		1
New obligations incurred	2		2		—
Changes in estimated timing or cost	10		9		1
Obligations settled	(35)		(12)		(23)
Balance at September 30, 2022	$	180	$	86	$	84