Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 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	13		12		4		8
Changes in estimated timing or cost	35		44		16		28
Effect of foreign currency exchange rates	1		—		—		—
Obligations settled	(64)		(64)		(16)		(48)
Balance at September 30, 2020	$	267	$	207	$	77	$	130

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	13		12		4		8
Changes in estimated timing or cost	35		44		16		28
Effect of foreign currency exchange rates	1		—		—		—
Obligations settled	(64)		(64)		(16)		(48)
Balance at September 30, 2020	$	267	$	207	$	77	$	130

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	13		12		4		8
Changes in estimated timing or cost	35		44		16		28
Effect of foreign currency exchange rates	1		—		—		—
Obligations settled	(64)		(64)		(16)		(48)
Balance at September 30, 2020	$	267	$	207	$	77	$	130

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	13		12		4		8
Changes in estimated timing or cost	35		44		16		28
Effect of foreign currency exchange rates	1		—		—		—
Obligations settled	(64)		(64)		(16)		(48)
Balance at September 30, 2020	$	267	$	207	$	77	$	130