Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Stock-Based Compensation [Line Items]

Stock-Based Compensation, Plan Award Limits

The following table details the award limits under each of the plans.

		Annual Grant Limit		Annual Grant Limit
		Total As % of		For Individual Participants -
	Total Plan	Outstanding	Annual Grant	Performance Based Awards
	Award	PPL Common Stock	Limit	For awards	For awards
	Limit	On First Day of	Options	denominated in	denominated in
Plan	(Shares)	Each Calendar Year	(Shares)	shares (Shares)	cash (in dollars)
ICP (a)	15,769,431	2%	3,000,000
SIP	10,000,000		2,000,000	750,000	$	15,000,000
ICPKE	14,199,796	2%	3,000,000

(a)Applicable to outstanding awards granted from January 27, 2006 to January 26, 2012. During 2012, the total plan award limit was reached and the ICP was replaced by the SIP.

Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of restricted stock and restricted stock units granted was:

	2013		2012		2011
PPL	$	30.30	$	28.35	$	25.25
PPL Energy Supply		30.42		28.29		25.14
PPL Electric		30.55		28.51		25.09
LKE		30.00		28.34

Restricted Stock and Restricted Stock Units, Activity Rollforward

Restricted stock and restricted stock unit activity for 2013 was:

			Weighted-
			Average
		Restricted	Grant Date Fair
		Shares/Units	Value Per Share
PPL
Nonvested, beginning of period		2,503,770	$	27.73
	Granted	1,307,951		30.30
	Vested	(638,421)		29.19
	Forfeited	(32,700)		28.61
Nonvested, end of period		3,140,600		28.50
PPL Energy Supply
Nonvested, beginning of period		1,060,686	$	27.95
	Transferred	3,820		27.31
	Granted	527,440		30.42
	Vested	(236,382)		29.10
	Forfeited	(12,160)		29.04
Nonvested, end of period		1,343,404		28.71
PPL Electric
Nonvested, beginning of period		261,228	$	27.30
	Transferred	(5,810)		27.48
	Granted	108,990		30.55
	Vested	(94,008)		28.41
	Forfeited	(4,850)		28.61
Nonvested, end of period		265,550		28.22
LKE
Nonvested, beginning of period		139,640	$	28.34
	Granted	127,293		30.00
	Vested	(35,380)		28.87
Nonvested, end of period		231,553		29.17

Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End

The total fair value of restricted stock and restricted stock units vesting for the years ended December 31 was:

	2013		2012		2011
PPL	$	19	$	27	$	19
PPL Energy Supply		7		6		6
PPL Electric		3		2		2
LKE		1		4		1

Performance Units, Valuation Assumptions

The weighted-average assumptions used in the model were:

	2013	2012	2011
Risk-free interest rate	0.36%	0.30%	1.00%
Expected stock volatility	15.50%	19.30%	23.40%
Expected life	3 years	3 years	3 years

Performance Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of performance units granted was:

	2013		2012		2011
PPL	$	34.15	$	31.41	$	29.67
PPL Energy Supply		34.29		31.40		29.68
PPL Electric		33.97		31.37		29.57
LKE		33.84		31.30		29.20

Performance Units, Activity Rollforward

Performance unit activity for 2013 was:

				Weighted-
				Average Grant
		Performance		Date Fair Value
		Units		Per Share
PPL
Nonvested, beginning of period			594,203	$	31.14
	Granted		348,495		34.15
	Forfeited		(149,499)		32.63
Nonvested, end of period			793,199		32.19
PPL Energy Supply
Nonvested, beginning of period			124,189	$	31.26
	Granted		74,614		34.29
	Forfeited		(28,194)		33.47
Nonvested, end of period			170,609		32.22
PPL Electric
Nonvested, beginning of period			26,083	$	31.10
	Granted		18,666		33.97
	Forfeited		(6,539)		32.78
Nonvested, end of period			38,210		32.22
LKE
Nonvested, beginning of period			82,750	$	30.62
	Granted		49,540		33.84
	Forfeited		(2,660)		29.17
Nonvested, end of period			129,630		31.88

Stock Options, Valuation Assumptions

The assumptions used in the model were:

	2013		2012		2011
Risk-free interest rate		1.15%		1.13%		2.34%
Expected option life		6.48 years		6.17 years		5.71 years
Expected stock volatility		18.50%		20.60%		21.60%
Dividend yield		5.00%		5.00%		5.93%

Stock Options, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of options granted was:

	2013		2012		2011
PPL	$	2.18	$	2.48	$	2.47
PPL Energy Supply		2.19		2.51		2.47
PPL Electric		2.19		2.50		2.47
LKE		2.18		2.51		2.47

Stock Options, Activity Rollforward

Stock option activity for 2013 was:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
		Number		Exercise		Contractual		Total Intrinsic
		of Options		Price Per Share		Term (years)		Value
PPL
Outstanding at beginning of period			9,134,545	$	30.36
	Granted		3,383,630		29.56
	Exercised		(1,136,693)		27.13
Outstanding at end of period			11,381,482		30.45		6.6	$	15
Options exercisable at end of period			6,415,615		31.66		5.0		8
PPL Energy Supply
Outstanding at beginning of period			2,265,123	$	30.45
	Transferred		88,546		25.67
	Granted		713,030		29.66
	Exercised		(221,363)		25.76
Outstanding at end of period			2,845,336		30.47		6.2	$	4
Options exercisable at end of period			1,747,842		31.48		4.6		2
PPL Electric
Outstanding at beginning of period			340,530	$	30.35
	Granted		191,670		29.49
Outstanding at end of period			532,200		30.04		7.1	$	1
Options exercisable at end of period			260,950		31.24		5.5
LKE
Outstanding at beginning of period			634,847	$	27.11
	Granted		501,950		29.51
	Exercised		(139,641)		26.87
Outstanding at end of period			997,156		28.35		8.4	$	2
Options exercisable at end of period			250,682		27.22		7.7		1

Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options

Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was as follows:

	2013		2012		2011
PPL	$	52	$	49	$	36
PPL Energy Supply		27		23		16
PPL Electric		10		11		8
LKE		8		8		5

The income tax benefit related to above compensation expense was as follows:

	2013		2012		2011
PPL	$	22	$	20	$	15
PPL Energy Supply		11		10		6
PPL Electric		4		4		3
LKE		3		4		2

Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards

At December 31, 2013, unrecognized compensation expense related to nonvested restricted stock, restricted stock units, performance units and stock option awards was:

			Weighted-
	Unrecognized		Average
	Compensation		Period for
	Expense		Recognition
PPL	$	33		1.9 years
PPL Energy Supply		13		2.0 years
PPL Electric		3		2.0 years
LKE		2		1.7 years

PPL Energy Supply LLC [Member]

Stock-Based Compensation [Line Items]

Stock-Based Compensation, Plan Award Limits

The following table details the award limits under each of the plans.

		Annual Grant Limit		Annual Grant Limit
		Total As % of		For Individual Participants -
	Total Plan	Outstanding	Annual Grant	Performance Based Awards
	Award	PPL Common Stock	Limit	For awards	For awards
	Limit	On First Day of	Options	denominated in	denominated in
Plan	(Shares)	Each Calendar Year	(Shares)	shares (Shares)	cash (in dollars)
ICP (a)	15,769,431	2%	3,000,000
SIP	10,000,000		2,000,000	750,000	$	15,000,000
ICPKE	14,199,796	2%	3,000,000

(a)Applicable to outstanding awards granted from January 27, 2006 to January 26, 2012. During 2012, the total plan award limit was reached and the ICP was replaced by the SIP.

Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of restricted stock and restricted stock units granted was:

	2013		2012		2011
PPL	$	30.30	$	28.35	$	25.25
PPL Energy Supply		30.42		28.29		25.14
PPL Electric		30.55		28.51		25.09
LKE		30.00		28.34

Restricted Stock and Restricted Stock Units, Activity Rollforward

Restricted stock and restricted stock unit activity for 2013 was:

			Weighted-
			Average
		Restricted	Grant Date Fair
		Shares/Units	Value Per Share
PPL
Nonvested, beginning of period		2,503,770	$	27.73
	Granted	1,307,951		30.30
	Vested	(638,421)		29.19
	Forfeited	(32,700)		28.61
Nonvested, end of period		3,140,600		28.50
PPL Energy Supply
Nonvested, beginning of period		1,060,686	$	27.95
	Transferred	3,820		27.31
	Granted	527,440		30.42
	Vested	(236,382)		29.10
	Forfeited	(12,160)		29.04
Nonvested, end of period		1,343,404		28.71
PPL Electric
Nonvested, beginning of period		261,228	$	27.30
	Transferred	(5,810)		27.48
	Granted	108,990		30.55
	Vested	(94,008)		28.41
	Forfeited	(4,850)		28.61
Nonvested, end of period		265,550		28.22
LKE
Nonvested, beginning of period		139,640	$	28.34
	Granted	127,293		30.00
	Vested	(35,380)		28.87
Nonvested, end of period		231,553		29.17

Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End

The total fair value of restricted stock and restricted stock units vesting for the years ended December 31 was:

	2013		2012		2011
PPL	$	19	$	27	$	19
PPL Energy Supply		7		6		6
PPL Electric		3		2		2
LKE		1		4		1

Performance Units, Valuation Assumptions

The weighted-average assumptions used in the model were:

	2013	2012	2011
Risk-free interest rate	0.36%	0.30%	1.00%
Expected stock volatility	15.50%	19.30%	23.40%
Expected life	3 years	3 years	3 years

Performance Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of performance units granted was:

	2013		2012		2011
PPL	$	34.15	$	31.41	$	29.67
PPL Energy Supply		34.29		31.40		29.68
PPL Electric		33.97		31.37		29.57
LKE		33.84		31.30		29.20

Performance Units, Activity Rollforward

Performance unit activity for 2013 was:

				Weighted-
				Average Grant
		Performance		Date Fair Value
		Units		Per Share
PPL
Nonvested, beginning of period			594,203	$	31.14
	Granted		348,495		34.15
	Forfeited		(149,499)		32.63
Nonvested, end of period			793,199		32.19
PPL Energy Supply
Nonvested, beginning of period			124,189	$	31.26
	Granted		74,614		34.29
	Forfeited		(28,194)		33.47
Nonvested, end of period			170,609		32.22
PPL Electric
Nonvested, beginning of period			26,083	$	31.10
	Granted		18,666		33.97
	Forfeited		(6,539)		32.78
Nonvested, end of period			38,210		32.22
LKE
Nonvested, beginning of period			82,750	$	30.62
	Granted		49,540		33.84
	Forfeited		(2,660)		29.17
Nonvested, end of period			129,630		31.88

Stock Options, Valuation Assumptions

The assumptions used in the model were:

	2013		2012		2011
Risk-free interest rate		1.15%		1.13%		2.34%
Expected option life		6.48 years		6.17 years		5.71 years
Expected stock volatility		18.50%		20.60%		21.60%
Dividend yield		5.00%		5.00%		5.93%

Stock Options, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of options granted was:

	2013		2012		2011
PPL	$	2.18	$	2.48	$	2.47
PPL Energy Supply		2.19		2.51		2.47
PPL Electric		2.19		2.50		2.47
LKE		2.18		2.51		2.47

Stock Options, Activity Rollforward

Stock option activity for 2013 was:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
		Number		Exercise		Contractual		Total Intrinsic
		of Options		Price Per Share		Term (years)		Value
PPL
Outstanding at beginning of period			9,134,545	$	30.36
	Granted		3,383,630		29.56
	Exercised		(1,136,693)		27.13
Outstanding at end of period			11,381,482		30.45		6.6	$	15
Options exercisable at end of period			6,415,615		31.66		5.0		8
PPL Energy Supply
Outstanding at beginning of period			2,265,123	$	30.45
	Transferred		88,546		25.67
	Granted		713,030		29.66
	Exercised		(221,363)		25.76
Outstanding at end of period			2,845,336		30.47		6.2	$	4
Options exercisable at end of period			1,747,842		31.48		4.6		2
PPL Electric
Outstanding at beginning of period			340,530	$	30.35
	Granted		191,670		29.49
Outstanding at end of period			532,200		30.04		7.1	$	1
Options exercisable at end of period			260,950		31.24		5.5
LKE
Outstanding at beginning of period			634,847	$	27.11
	Granted		501,950		29.51
	Exercised		(139,641)		26.87
Outstanding at end of period			997,156		28.35		8.4	$	2
Options exercisable at end of period			250,682		27.22		7.7		1

Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options

Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was as follows:

	2013		2012		2011
PPL	$	52	$	49	$	36
PPL Energy Supply		27		23		16
PPL Electric		10		11		8
LKE		8		8		5

The income tax benefit related to above compensation expense was as follows:

	2013		2012		2011
PPL	$	22	$	20	$	15
PPL Energy Supply		11		10		6
PPL Electric		4		4		3
LKE		3		4		2

Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards

At December 31, 2013, unrecognized compensation expense related to nonvested restricted stock, restricted stock units, performance units and stock option awards was:

			Weighted-
	Unrecognized		Average
	Compensation		Period for
	Expense		Recognition
PPL	$	33		1.9 years
PPL Energy Supply		13		2.0 years
PPL Electric		3		2.0 years
LKE		2		1.7 years

PPL Electric Utilities Corp [Member]

Stock-Based Compensation [Line Items]

Stock-Based Compensation, Plan Award Limits

The following table details the award limits under each of the plans.

		Annual Grant Limit		Annual Grant Limit
		Total As % of		For Individual Participants -
	Total Plan	Outstanding	Annual Grant	Performance Based Awards
	Award	PPL Common Stock	Limit	For awards	For awards
	Limit	On First Day of	Options	denominated in	denominated in
Plan	(Shares)	Each Calendar Year	(Shares)	shares (Shares)	cash (in dollars)
ICP (a)	15,769,431	2%	3,000,000
SIP	10,000,000		2,000,000	750,000	$	15,000,000
ICPKE	14,199,796	2%	3,000,000

(a)Applicable to outstanding awards granted from January 27, 2006 to January 26, 2012. During 2012, the total plan award limit was reached and the ICP was replaced by the SIP.

Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of restricted stock and restricted stock units granted was:

	2013		2012		2011
PPL	$	30.30	$	28.35	$	25.25
PPL Energy Supply		30.42		28.29		25.14
PPL Electric		30.55		28.51		25.09
LKE		30.00		28.34

Restricted Stock and Restricted Stock Units, Activity Rollforward

Restricted stock and restricted stock unit activity for 2013 was:

			Weighted-
			Average
		Restricted	Grant Date Fair
		Shares/Units	Value Per Share
PPL
Nonvested, beginning of period		2,503,770	$	27.73
	Granted	1,307,951		30.30
	Vested	(638,421)		29.19
	Forfeited	(32,700)		28.61
Nonvested, end of period		3,140,600		28.50
PPL Energy Supply
Nonvested, beginning of period		1,060,686	$	27.95
	Transferred	3,820		27.31
	Granted	527,440		30.42
	Vested	(236,382)		29.10
	Forfeited	(12,160)		29.04
Nonvested, end of period		1,343,404		28.71
PPL Electric
Nonvested, beginning of period		261,228	$	27.30
	Transferred	(5,810)		27.48
	Granted	108,990		30.55
	Vested	(94,008)		28.41
	Forfeited	(4,850)		28.61
Nonvested, end of period		265,550		28.22
LKE
Nonvested, beginning of period		139,640	$	28.34
	Granted	127,293		30.00
	Vested	(35,380)		28.87
Nonvested, end of period		231,553		29.17

Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End

The total fair value of restricted stock and restricted stock units vesting for the years ended December 31 was:

	2013		2012		2011
PPL	$	19	$	27	$	19
PPL Energy Supply		7		6		6
PPL Electric		3		2		2
LKE		1		4		1

Performance Units, Valuation Assumptions

The weighted-average assumptions used in the model were:

	2013	2012	2011
Risk-free interest rate	0.36%	0.30%	1.00%
Expected stock volatility	15.50%	19.30%	23.40%
Expected life	3 years	3 years	3 years

Performance Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of performance units granted was:

	2013		2012		2011
PPL	$	34.15	$	31.41	$	29.67
PPL Energy Supply		34.29		31.40		29.68
PPL Electric		33.97		31.37		29.57
LKE		33.84		31.30		29.20

Performance Units, Activity Rollforward

Performance unit activity for 2013 was:

				Weighted-
				Average Grant
		Performance		Date Fair Value
		Units		Per Share
PPL
Nonvested, beginning of period			594,203	$	31.14
	Granted		348,495		34.15
	Forfeited		(149,499)		32.63
Nonvested, end of period			793,199		32.19
PPL Energy Supply
Nonvested, beginning of period			124,189	$	31.26
	Granted		74,614		34.29
	Forfeited		(28,194)		33.47
Nonvested, end of period			170,609		32.22
PPL Electric
Nonvested, beginning of period			26,083	$	31.10
	Granted		18,666		33.97
	Forfeited		(6,539)		32.78
Nonvested, end of period			38,210		32.22
LKE
Nonvested, beginning of period			82,750	$	30.62
	Granted		49,540		33.84
	Forfeited		(2,660)		29.17
Nonvested, end of period			129,630		31.88

Stock Options, Valuation Assumptions

The assumptions used in the model were:

	2013		2012		2011
Risk-free interest rate		1.15%		1.13%		2.34%
Expected option life		6.48 years		6.17 years		5.71 years
Expected stock volatility		18.50%		20.60%		21.60%
Dividend yield		5.00%		5.00%		5.93%

Stock Options, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of options granted was:

	2013		2012		2011
PPL	$	2.18	$	2.48	$	2.47
PPL Energy Supply		2.19		2.51		2.47
PPL Electric		2.19		2.50		2.47
LKE		2.18		2.51		2.47

Stock Options, Activity Rollforward

Stock option activity for 2013 was:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
		Number		Exercise		Contractual		Total Intrinsic
		of Options		Price Per Share		Term (years)		Value
PPL
Outstanding at beginning of period			9,134,545	$	30.36
	Granted		3,383,630		29.56
	Exercised		(1,136,693)		27.13
Outstanding at end of period			11,381,482		30.45		6.6	$	15
Options exercisable at end of period			6,415,615		31.66		5.0		8
PPL Energy Supply
Outstanding at beginning of period			2,265,123	$	30.45
	Transferred		88,546		25.67
	Granted		713,030		29.66
	Exercised		(221,363)		25.76
Outstanding at end of period			2,845,336		30.47		6.2	$	4
Options exercisable at end of period			1,747,842		31.48		4.6		2
PPL Electric
Outstanding at beginning of period			340,530	$	30.35
	Granted		191,670		29.49
Outstanding at end of period			532,200		30.04		7.1	$	1
Options exercisable at end of period			260,950		31.24		5.5
LKE
Outstanding at beginning of period			634,847	$	27.11
	Granted		501,950		29.51
	Exercised		(139,641)		26.87
Outstanding at end of period			997,156		28.35		8.4	$	2
Options exercisable at end of period			250,682		27.22		7.7		1

Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options

Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was as follows:

	2013		2012		2011
PPL	$	52	$	49	$	36
PPL Energy Supply		27		23		16
PPL Electric		10		11		8
LKE		8		8		5

The income tax benefit related to above compensation expense was as follows:

	2013		2012		2011
PPL	$	22	$	20	$	15
PPL Energy Supply		11		10		6
PPL Electric		4		4		3
LKE		3		4		2

Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards

At December 31, 2013, unrecognized compensation expense related to nonvested restricted stock, restricted stock units, performance units and stock option awards was:

			Weighted-
	Unrecognized		Average
	Compensation		Period for
	Expense		Recognition
PPL	$	33		1.9 years
PPL Energy Supply		13		2.0 years
PPL Electric		3		2.0 years
LKE		2		1.7 years

LG And E And KU Energy LLC [Member]

Stock-Based Compensation [Line Items]

Stock-Based Compensation, Plan Award Limits

The following table details the award limits under each of the plans.

		Annual Grant Limit		Annual Grant Limit
		Total As % of		For Individual Participants -
	Total Plan	Outstanding	Annual Grant	Performance Based Awards
	Award	PPL Common Stock	Limit	For awards	For awards
	Limit	On First Day of	Options	denominated in	denominated in
Plan	(Shares)	Each Calendar Year	(Shares)	shares (Shares)	cash (in dollars)
ICP (a)	15,769,431	2%	3,000,000
SIP	10,000,000		2,000,000	750,000	$	15,000,000
ICPKE	14,199,796	2%	3,000,000

(a)Applicable to outstanding awards granted from January 27, 2006 to January 26, 2012. During 2012, the total plan award limit was reached and the ICP was replaced by the SIP.

Restricted Stock and Restricted Stock Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of restricted stock and restricted stock units granted was:

	2013		2012		2011
PPL	$	30.30	$	28.35	$	25.25
PPL Energy Supply		30.42		28.29		25.14
PPL Electric		30.55		28.51		25.09
LKE		30.00		28.34

Restricted Stock and Restricted Stock Units, Activity Rollforward

Restricted stock and restricted stock unit activity for 2013 was:

			Weighted-
			Average
		Restricted	Grant Date Fair
		Shares/Units	Value Per Share
PPL
Nonvested, beginning of period		2,503,770	$	27.73
	Granted	1,307,951		30.30
	Vested	(638,421)		29.19
	Forfeited	(32,700)		28.61
Nonvested, end of period		3,140,600		28.50
PPL Energy Supply
Nonvested, beginning of period		1,060,686	$	27.95
	Transferred	3,820		27.31
	Granted	527,440		30.42
	Vested	(236,382)		29.10
	Forfeited	(12,160)		29.04
Nonvested, end of period		1,343,404		28.71
PPL Electric
Nonvested, beginning of period		261,228	$	27.30
	Transferred	(5,810)		27.48
	Granted	108,990		30.55
	Vested	(94,008)		28.41
	Forfeited	(4,850)		28.61
Nonvested, end of period		265,550		28.22
LKE
Nonvested, beginning of period		139,640	$	28.34
	Granted	127,293		30.00
	Vested	(35,380)		28.87
Nonvested, end of period		231,553		29.17

Restricted Stock and Restricted Stock Units, Total Fair Value Vested at Year End

The total fair value of restricted stock and restricted stock units vesting for the years ended December 31 was:

	2013		2012		2011
PPL	$	19	$	27	$	19
PPL Energy Supply		7		6		6
PPL Electric		3		2		2
LKE		1		4		1

Performance Units, Valuation Assumptions

The weighted-average assumptions used in the model were:

	2013	2012	2011
Risk-free interest rate	0.36%	0.30%	1.00%
Expected stock volatility	15.50%	19.30%	23.40%
Expected life	3 years	3 years	3 years

Performance Units, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of performance units granted was:

	2013		2012		2011
PPL	$	34.15	$	31.41	$	29.67
PPL Energy Supply		34.29		31.40		29.68
PPL Electric		33.97		31.37		29.57
LKE		33.84		31.30		29.20

Performance Units, Activity Rollforward

Performance unit activity for 2013 was:

				Weighted-
				Average Grant
		Performance		Date Fair Value
		Units		Per Share
PPL
Nonvested, beginning of period			594,203	$	31.14
	Granted		348,495		34.15
	Forfeited		(149,499)		32.63
Nonvested, end of period			793,199		32.19
PPL Energy Supply
Nonvested, beginning of period			124,189	$	31.26
	Granted		74,614		34.29
	Forfeited		(28,194)		33.47
Nonvested, end of period			170,609		32.22
PPL Electric
Nonvested, beginning of period			26,083	$	31.10
	Granted		18,666		33.97
	Forfeited		(6,539)		32.78
Nonvested, end of period			38,210		32.22
LKE
Nonvested, beginning of period			82,750	$	30.62
	Granted		49,540		33.84
	Forfeited		(2,660)		29.17
Nonvested, end of period			129,630		31.88

Stock Options, Valuation Assumptions

The assumptions used in the model were:

	2013		2012		2011
Risk-free interest rate		1.15%		1.13%		2.34%
Expected option life		6.48 years		6.17 years		5.71 years
Expected stock volatility		18.50%		20.60%		21.60%
Dividend yield		5.00%		5.00%		5.93%

Stock Options, Weighted Average Grant Date Fair Value

The weighted-average grant date fair value of options granted was:

	2013		2012		2011
PPL	$	2.18	$	2.48	$	2.47
PPL Energy Supply		2.19		2.51		2.47
PPL Electric		2.19		2.50		2.47
LKE		2.18		2.51		2.47

Stock Options, Activity Rollforward

Stock option activity for 2013 was:

						Weighted-
				Weighted		Average
				Average		Remaining		Aggregate
		Number		Exercise		Contractual		Total Intrinsic
		of Options		Price Per Share		Term (years)		Value
PPL
Outstanding at beginning of period			9,134,545	$	30.36
	Granted		3,383,630		29.56
	Exercised		(1,136,693)		27.13
Outstanding at end of period			11,381,482		30.45		6.6	$	15
Options exercisable at end of period			6,415,615		31.66		5.0		8
PPL Energy Supply
Outstanding at beginning of period			2,265,123	$	30.45
	Transferred		88,546		25.67
	Granted		713,030		29.66
	Exercised		(221,363)		25.76
Outstanding at end of period			2,845,336		30.47		6.2	$	4
Options exercisable at end of period			1,747,842		31.48		4.6		2
PPL Electric
Outstanding at beginning of period			340,530	$	30.35
	Granted		191,670		29.49
Outstanding at end of period			532,200		30.04		7.1	$	1
Options exercisable at end of period			260,950		31.24		5.5
LKE
Outstanding at beginning of period			634,847	$	27.11
	Granted		501,950		29.51
	Exercised		(139,641)		26.87
Outstanding at end of period			997,156		28.35		8.4	$	2
Options exercisable at end of period			250,682		27.22		7.7		1

Compensation Costs for Restricted Stock, Restricted Stock Units, Performance Units and Stock Options

Compensation expense for restricted stock, restricted stock units, performance units and stock options accounted for as equity awards was as follows:

	2013		2012		2011
PPL	$	52	$	49	$	36
PPL Energy Supply		27		23		16
PPL Electric		10		11		8
LKE		8		8		5

The income tax benefit related to above compensation expense was as follows:

	2013		2012		2011
PPL	$	22	$	20	$	15
PPL Energy Supply		11		10		6
PPL Electric		4		4		3
LKE		3		4		2

Unrecognized Compensation Cost, Nonvested Restricted Stock, Restricted Stock Units, Performance Units and Stock Option Awards

At December 31, 2013, unrecognized compensation expense related to nonvested restricted stock, restricted stock units, performance units and stock option awards was:

			Weighted-
	Unrecognized		Average
	Compensation		Period for
	Expense		Recognition
PPL	$	33		1.9 years
PPL Energy Supply		13		2.0 years
PPL Electric		3		2.0 years
LKE		2		1.7 years