Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2020

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

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

	PPL		LKE		LG&E		KU
Balance at December 31, 2019	$	282	$	215	$	73	$	142
Accretion	7		7		2		5
Changes in estimated timing or cost	22		31		3		28
Effect of foreign currency exchange rates	(3)		—		—		—
Obligations settled	(35)		(35)		(11)		(24)
Balance at June 30, 2020	$	273	$	218	$	67	$	151

LG And E And KU Energy LLC [Member]

Asset Retirement Obligation [Line Items]

Asset Retirement Obligation Roll Forward

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

	PPL		LKE		LG&E		KU
Balance at December 31, 2019	$	282	$	215	$	73	$	142
Accretion	7		7		2		5
Changes in estimated timing or cost	22		31		3		28
Effect of foreign currency exchange rates	(3)		—		—		—
Obligations settled	(35)		(35)		(11)		(24)
Balance at June 30, 2020	$	273	$	218	$	67	$	151

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		LKE		LG&E		KU
Balance at December 31, 2019	$	282	$	215	$	73	$	142
Accretion	7		7		2		5
Changes in estimated timing or cost	22		31		3		28
Effect of foreign currency exchange rates	(3)		—		—		—
Obligations settled	(35)		(35)		(11)		(24)
Balance at June 30, 2020	$	273	$	218	$	67	$	151

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		LKE		LG&E		KU
Balance at December 31, 2019	$	282	$	215	$	73	$	142
Accretion	7		7		2		5
Changes in estimated timing or cost	22		31		3		28
Effect of foreign currency exchange rates	(3)		—		—		—
Obligations settled	(35)		(35)		(11)		(24)
Balance at June 30, 2020	$	273	$	218	$	67	$	151