Defined Benefits (Tables)

3 Months Ended

Mar. 31, 2016

Defined Benefits [Line Items]

Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPLand its subsidiaries, LKE and its subsidiariesand LG&E for the three month periods ended March 31:

		Pension Benefits								Other Postretirement Benefits
		U.S.				U.K.
		2016		2015		2016 (b)		2015		2016		2015
PPL
Service cost		$	17	$	30	$	18	$	20	$	2	$	4
Interest cost			43		57		62		79		6		7
Expected return on plan assets			(56)		(75)		(133)		(131)		(5)		(7)
Amortization of:
	Prior service cost		1		2
	Actuarial (gain) loss		15		24		37		39
Net periodic defined benefit costs (credits) (a)		$	20	$	38	$	(16)	$	7	$	3	$	4

LKE
Service cost		$	6	$	7	$	1	$	1
Interest cost			17		17		2		2
Expected return on plan assets			(21)		(22)		(2)		(1)
Amortization of:
	Prior service cost		1		2		1		1
	Actuarial (gain) loss		5		8
Net periodic defined benefit costs (credits)		$	8	$	12	$	2	$	3
LG&E
Interest cost		$	3	$	3
Expected return on plan assets			(5)		(5)
Amortization of:
	Prior service cost		1		1
	Actuarial (gain) loss		2		3
Net periodic defined benefit costs (credits)		$	1	$	2

(a)For the three months ended March 31, 2015, the total net periodic defined benefit cost includes $11 million reflected in discontinued operations related to costs allocated from PPL's plans to PPL Energy Supply prior to the spinoff.

(b)See Note 2 for a discussion of changes to the discount rate used for the U.K. Pension Plans.

PPL Electric Utilities Corp [Member]

Defined Benefits [Line Items]

Allocation of Net Periodic Benefit Costs

For the periods ended March 31,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
	2016		2015
PPL Electric	$	6	$	8

LG&E	2	3
KU	3	5

LG And E And KU Energy LLC [Member]

Defined Benefits [Line Items]

Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPLand its subsidiaries, LKE and its subsidiariesand LG&E for the three month periods ended March 31:

		Pension Benefits								Other Postretirement Benefits
		U.S.				U.K.
		2016		2015		2016 (b)		2015		2016		2015
PPL
Service cost		$	17	$	30	$	18	$	20	$	2	$	4
Interest cost			43		57		62		79		6		7
Expected return on plan assets			(56)		(75)		(133)		(131)		(5)		(7)
Amortization of:
	Prior service cost		1		2
	Actuarial (gain) loss		15		24		37		39
Net periodic defined benefit costs (credits) (a)		$	20	$	38	$	(16)	$	7	$	3	$	4

LKE
Service cost		$	6	$	7	$	1	$	1
Interest cost			17		17		2		2
Expected return on plan assets			(21)		(22)		(2)		(1)
Amortization of:
	Prior service cost		1		2		1		1
	Actuarial (gain) loss		5		8
Net periodic defined benefit costs (credits)		$	8	$	12	$	2	$	3
LG&E
Interest cost		$	3	$	3
Expected return on plan assets			(5)		(5)
Amortization of:
	Prior service cost		1		1
	Actuarial (gain) loss		2		3
Net periodic defined benefit costs (credits)		$	1	$	2

Louisville Gas And Electric Co [Member]

Defined Benefits [Line Items]

Schedule Of Net Periodic Defined Benefit Costs (Credits)

Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPLand its subsidiaries, LKE and its subsidiariesand LG&E for the three month periods ended March 31:

		Pension Benefits								Other Postretirement Benefits
		U.S.				U.K.
		2016		2015		2016 (b)		2015		2016		2015
PPL
Service cost		$	17	$	30	$	18	$	20	$	2	$	4
Interest cost			43		57		62		79		6		7
Expected return on plan assets			(56)		(75)		(133)		(131)		(5)		(7)
Amortization of:
	Prior service cost		1		2
	Actuarial (gain) loss		15		24		37		39
Net periodic defined benefit costs (credits) (a)		$	20	$	38	$	(16)	$	7	$	3	$	4

LKE
Service cost		$	6	$	7	$	1	$	1
Interest cost			17		17		2		2
Expected return on plan assets			(21)		(22)		(2)		(1)
Amortization of:
	Prior service cost		1		2		1		1
	Actuarial (gain) loss		5		8
Net periodic defined benefit costs (credits)		$	8	$	12	$	2	$	3
LG&E
Interest cost		$	3	$	3
Expected return on plan assets			(5)		(5)
Amortization of:
	Prior service cost		1		1
	Actuarial (gain) loss		2		3
Net periodic defined benefit costs (credits)		$	1	$	2

Allocation of Net Periodic Benefit Costs

For the periods ended March 31,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
	2016		2015
PPL Electric	$	6	$	8

LG&E	2	3
KU	3	5

Kentucky Utilities Co [Member]

Defined Benefits [Line Items]

Allocation of Net Periodic Benefit Costs

For the periods ended March 31,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
	2016		2015
PPL Electric	$	6	$	8

LG&E	2	3
KU	3	5