Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 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	2		2		—
New obligations incurred	1		1		—
Changes in estimated timing or cost	2		1		1
Obligations settled	(23)		(9)		(14)
Balance at June 30, 2022	$	181	$	79	$	92

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	2		2		—
New obligations incurred	1		1		—
Changes in estimated timing or cost	2		1		1
Obligations settled	(23)		(9)		(14)
Balance at June 30, 2022	$	181	$	79	$	92

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	2		2		—
New obligations incurred	1		1		—
Changes in estimated timing or cost	2		1		1
Obligations settled	(23)		(9)		(14)
Balance at June 30, 2022	$	181	$	79	$	92