Defined Benefits (Tables)

9 Months Ended

Sep. 30, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries for the periods ended September 30:

	Pension Benefits
	Three Months				Nine Months
	2021		2020		2021		2020
PPL
Service cost	$	14	$	14	$	42	$	42
Interest cost	30		35		91		109
Expected return on plan assets	(64)		(62)		(191)		(185)
Amortization of:
Prior service cost	2		3		6		7
Actuarial loss	21		23		70		67
Net periodic defined benefit costs (credits) before settlements	3		13		18		40
Settlements (a)	14		13		14		13
Net periodic defined benefit costs (credits)	$	17	$	26	$	32	$	53

(a)    Settlement charges were incurred due to the amount of lump sum payment distributions from the LKE qualified pension plan. In accordance with existing regulatory accounting treatment, LG&E and KU have primarily maintained the settlement charge in regulatory assets to be amortized over fifteen years.

	Other Postretirement Benefits
	Three Months				Nine Months
	2021		2020		2021		2020
PPL
Service cost	$	2	$	2	$	5	$	5
Interest cost	4		4		12		14
Expected return on plan assets	(6)		(5)		(18)		(16)
Amortization of:
Prior service cost	—		—		1		1
Actuarial loss	(1)		—		(1)		—
Net periodic defined benefit costs	$	(1)	$	1	$	(1)	$	4

PPL Electric Utilities Corp [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Allocation of Net Periodic Benefit Costs

For the periods ended September 30, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU:

	Three Months				Nine Months
	2021		2020		2021		2020
PPL Electric	$	—	$	3	$	2	$	9
LG&E	6		9		7		14
KU	1		4		—		5

Louisville Gas And Electric Co [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Allocation of Net Periodic Benefit Costs

For the periods ended September 30, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU:

	Three Months				Nine Months
	2021		2020		2021		2020
PPL Electric	$	—	$	3	$	2	$	9
LG&E	6		9		7		14
KU	1		4		—		5

Kentucky Utilities Co [Member]

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Allocation of Net Periodic Benefit Costs

For the periods ended September 30, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU:

	Three Months				Nine Months
	2021		2020		2021		2020
PPL Electric	$	—	$	3	$	2	$	9
LG&E	6		9		7		14
KU	1		4		—		5