Available-for-Sale Securities

12 Months Ended

Dec. 31, 2013

Available-for-Sale Securities [Line Items]

Available-for-Sale Securities

23. Available-for-Sale Securities

(PPL and PPL Energy Supply)

Securities held by the NDT funds and auction rate securities are classified as available-for-sale.

The following table shows the amortized cost, the gross unrealized gains and losses recorded in AOCI and the fair value of available-for-sale securities.

			December 31, 2013								December 31, 2012
					Gross		Gross						Gross		Gross
			Amortized		Unrealized		Unrealized				Amortized		Unrealized		Unrealized
			Cost		Gains		Losses		Fair Value		Cost		Gains		Losses		Fair Value
NDT funds:
PPL and PPL Energy Supply
		Cash and cash equivalents	$	14					$	14	$	11					$	11
		Equity securities		265	$	363				628		252	$	220				472
		Debt securities		217		7	$	3		221		211		19	$	1		229
		Receivables/payables, net		1						1
		Total NDT funds	$	497	$	370	$	3	$	864	$	474	$	239	$	1	$	712
Auction rate securities:
	PPL		$	20			$	1	$	19	$	20			$	1	$	19
	PPL Energy Supply			17				1		16		17				1		16

See Note 18 for details on the securities held by the NDT funds.

There were no securities with credit losses at December 31, 2013and 2012.

The following table shows the scheduled maturity dates of debt securities held at December 31, 2013.

	Maturity		Maturity		Maturity		Maturity
	Less Than		1-5		6-10		in Excess
	1 Year		Years		Years		of 10 Years		Total
PPL
Amortized cost	$	7	$	97	$	54	$	79	$	237
Fair value		7		99		55		79		240
PPL Energy Supply
Amortized cost	$	7	$	97	$	54	$	76	$	234
Fair value		7		99		55		76		237

The following table shows proceeds from and realized gains and losses on sales of available-for-sale securities.
	2013		2012		2011
PPL
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				5		163
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16
PPL Energy Supply
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				3
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16

(a)These proceeds are used to pay income taxes and fees related to managing the trust. Remaining proceeds are reinvested in the trust.

(b)Excludes the impact of other-than-temporary impairment charges recognized on the Statements of Income.

Short-term Investments(PPL, LKE and LG&E)

At December 31, 2010, LG&E held $163million aggregate principal amount of tax-exempt revenue bonds issued by Louisville/Jefferson County, Kentucky on behalf of LG&E that were purchased from the remarketing agent in 2008. In 2011, LG&E received $163million for its investments in these bonds when they were remarketed to unaffiliated investors. No realized or unrealized gains (losses) were recorded on these securities, as the difference between carrying value and fair value was not significant.

NDT Funds(PPL and PPL Energy Supply)

Amounts previously collected from PPL Electric's customers for decommissioning the Susquehanna nuclear plant, less applicable taxes, were deposited in external trust funds for investment and can only be used for future decommissioning costs. To the extent that the actual costs for decommissioning exceed the amounts in the nuclear decommissioning trust funds, PPL Susquehanna would be obligated to fund 90%of the shortfall.

When the fair value of a security is less than amortized cost, PPL and PPL Energy Supply must make certain assertions to avoid recording an other-than-temporary impairment that requires a current period charge to earnings. The NRC requires that nuclear decommissioning trusts be managed by independent investment managers, with discretion to buy and sell securities in the trusts. As a result, PPL and PPL Energy Supply have been unable to demonstrate the ability to hold an impaired security until it recovers its value; therefore, unrealized losses on equity securities for all periods presented, represented other-than-temporary impairments that required a current period charge to earnings. PPL and PPL Energy Supply recorded impairments for certain securities invested in the NDT funds of $6 million for 2011. The amounts for 2013 and 2012 are insignificant. These impairments are reflected on the Statements of Income in "Other-Than-Temporary Impairments."

PPL Energy Supply LLC [Member]

Available-for-Sale Securities [Line Items]

Available-for-Sale Securities

23. Available-for-Sale Securities

(PPL and PPL Energy Supply)

Securities held by the NDT funds and auction rate securities are classified as available-for-sale.

The following table shows the amortized cost, the gross unrealized gains and losses recorded in AOCI and the fair value of available-for-sale securities.

			December 31, 2013								December 31, 2012
					Gross		Gross						Gross		Gross
			Amortized		Unrealized		Unrealized				Amortized		Unrealized		Unrealized
			Cost		Gains		Losses		Fair Value		Cost		Gains		Losses		Fair Value
NDT funds:
PPL and PPL Energy Supply
		Cash and cash equivalents	$	14					$	14	$	11					$	11
		Equity securities		265	$	363				628		252	$	220				472
		Debt securities		217		7	$	3		221		211		19	$	1		229
		Receivables/payables, net		1						1
		Total NDT funds	$	497	$	370	$	3	$	864	$	474	$	239	$	1	$	712
Auction rate securities:
	PPL		$	20			$	1	$	19	$	20			$	1	$	19
	PPL Energy Supply			17				1		16		17				1		16

See Note 18 for details on the securities held by the NDT funds.

There were no securities with credit losses at December 31, 2013and 2012.

The following table shows the scheduled maturity dates of debt securities held at December 31, 2013.

	Maturity		Maturity		Maturity		Maturity
	Less Than		1-5		6-10		in Excess
	1 Year		Years		Years		of 10 Years		Total
PPL
Amortized cost	$	7	$	97	$	54	$	79	$	237
Fair value		7		99		55		79		240
PPL Energy Supply
Amortized cost	$	7	$	97	$	54	$	76	$	234
Fair value		7		99		55		76		237

The following table shows proceeds from and realized gains and losses on sales of available-for-sale securities.
	2013		2012		2011
PPL
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				5		163
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16
PPL Energy Supply
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				3
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16

(a)These proceeds are used to pay income taxes and fees related to managing the trust. Remaining proceeds are reinvested in the trust.

(b)Excludes the impact of other-than-temporary impairment charges recognized on the Statements of Income.

Short-term Investments(PPL, LKE and LG&E)

At December 31, 2010, LG&E held $163million aggregate principal amount of tax-exempt revenue bonds issued by Louisville/Jefferson County, Kentucky on behalf of LG&E that were purchased from the remarketing agent in 2008. In 2011, LG&E received $163million for its investments in these bonds when they were remarketed to unaffiliated investors. No realized or unrealized gains (losses) were recorded on these securities, as the difference between carrying value and fair value was not significant.

NDT Funds(PPL and PPL Energy Supply)

Amounts previously collected from PPL Electric's customers for decommissioning the Susquehanna nuclear plant, less applicable taxes, were deposited in external trust funds for investment and can only be used for future decommissioning costs. To the extent that the actual costs for decommissioning exceed the amounts in the nuclear decommissioning trust funds, PPL Susquehanna would be obligated to fund 90%of the shortfall.

When the fair value of a security is less than amortized cost, PPL and PPL Energy Supply must make certain assertions to avoid recording an other-than-temporary impairment that requires a current period charge to earnings. The NRC requires that nuclear decommissioning trusts be managed by independent investment managers, with discretion to buy and sell securities in the trusts. As a result, PPL and PPL Energy Supply have been unable to demonstrate the ability to hold an impaired security until it recovers its value; therefore, unrealized losses on equity securities for all periods presented, represented other-than-temporary impairments that required a current period charge to earnings. PPL and PPL Energy Supply recorded impairments for certain securities invested in the NDT funds of $6 million for 2011. The amounts for 2013 and 2012 are insignificant. These impairments are reflected on the Statements of Income in "Other-Than-Temporary Impairments."

LG And E And KU Energy LLC [Member]

Available-for-Sale Securities [Line Items]

Available-for-Sale Securities

23. Available-for-Sale Securities

(PPL and PPL Energy Supply)

Securities held by the NDT funds and auction rate securities are classified as available-for-sale.

The following table shows the amortized cost, the gross unrealized gains and losses recorded in AOCI and the fair value of available-for-sale securities.

			December 31, 2013								December 31, 2012
					Gross		Gross						Gross		Gross
			Amortized		Unrealized		Unrealized				Amortized		Unrealized		Unrealized
			Cost		Gains		Losses		Fair Value		Cost		Gains		Losses		Fair Value
NDT funds:
PPL and PPL Energy Supply
		Cash and cash equivalents	$	14					$	14	$	11					$	11
		Equity securities		265	$	363				628		252	$	220				472
		Debt securities		217		7	$	3		221		211		19	$	1		229
		Receivables/payables, net		1						1
		Total NDT funds	$	497	$	370	$	3	$	864	$	474	$	239	$	1	$	712
Auction rate securities:
	PPL		$	20			$	1	$	19	$	20			$	1	$	19
	PPL Energy Supply			17				1		16		17				1		16

See Note 18 for details on the securities held by the NDT funds.

There were no securities with credit losses at December 31, 2013and 2012.

The following table shows the scheduled maturity dates of debt securities held at December 31, 2013.

	Maturity		Maturity		Maturity		Maturity
	Less Than		1-5		6-10		in Excess
	1 Year		Years		Years		of 10 Years		Total
PPL
Amortized cost	$	7	$	97	$	54	$	79	$	237
Fair value		7		99		55		79		240
PPL Energy Supply
Amortized cost	$	7	$	97	$	54	$	76	$	234
Fair value		7		99		55		76		237

The following table shows proceeds from and realized gains and losses on sales of available-for-sale securities.
	2013		2012		2011
PPL
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				5		163
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16
PPL Energy Supply
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				3
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16

(a)These proceeds are used to pay income taxes and fees related to managing the trust. Remaining proceeds are reinvested in the trust.

(b)Excludes the impact of other-than-temporary impairment charges recognized on the Statements of Income.

Short-term Investments(PPL, LKE and LG&E)

At December 31, 2010, LG&E held $163million aggregate principal amount of tax-exempt revenue bonds issued by Louisville/Jefferson County, Kentucky on behalf of LG&E that were purchased from the remarketing agent in 2008. In 2011, LG&E received $163million for its investments in these bonds when they were remarketed to unaffiliated investors. No realized or unrealized gains (losses) were recorded on these securities, as the difference between carrying value and fair value was not significant.

NDT Funds(PPL and PPL Energy Supply)

Amounts previously collected from PPL Electric's customers for decommissioning the Susquehanna nuclear plant, less applicable taxes, were deposited in external trust funds for investment and can only be used for future decommissioning costs. To the extent that the actual costs for decommissioning exceed the amounts in the nuclear decommissioning trust funds, PPL Susquehanna would be obligated to fund 90%of the shortfall.

When the fair value of a security is less than amortized cost, PPL and PPL Energy Supply must make certain assertions to avoid recording an other-than-temporary impairment that requires a current period charge to earnings. The NRC requires that nuclear decommissioning trusts be managed by independent investment managers, with discretion to buy and sell securities in the trusts. As a result, PPL and PPL Energy Supply have been unable to demonstrate the ability to hold an impaired security until it recovers its value; therefore, unrealized losses on equity securities for all periods presented, represented other-than-temporary impairments that required a current period charge to earnings. PPL and PPL Energy Supply recorded impairments for certain securities invested in the NDT funds of $6 million for 2011. The amounts for 2013 and 2012 are insignificant. These impairments are reflected on the Statements of Income in "Other-Than-Temporary Impairments."

Louisville Gas And Electric Co [Member]

Available-for-Sale Securities [Line Items]

Available-for-Sale Securities

23. Available-for-Sale Securities

(PPL and PPL Energy Supply)

Securities held by the NDT funds and auction rate securities are classified as available-for-sale.

The following table shows the amortized cost, the gross unrealized gains and losses recorded in AOCI and the fair value of available-for-sale securities.

			December 31, 2013								December 31, 2012
					Gross		Gross						Gross		Gross
			Amortized		Unrealized		Unrealized				Amortized		Unrealized		Unrealized
			Cost		Gains		Losses		Fair Value		Cost		Gains		Losses		Fair Value
NDT funds:
PPL and PPL Energy Supply
		Cash and cash equivalents	$	14					$	14	$	11					$	11
		Equity securities		265	$	363				628		252	$	220				472
		Debt securities		217		7	$	3		221		211		19	$	1		229
		Receivables/payables, net		1						1
		Total NDT funds	$	497	$	370	$	3	$	864	$	474	$	239	$	1	$	712
Auction rate securities:
	PPL		$	20			$	1	$	19	$	20			$	1	$	19
	PPL Energy Supply			17				1		16		17				1		16

See Note 18 for details on the securities held by the NDT funds.

There were no securities with credit losses at December 31, 2013and 2012.

The following table shows the scheduled maturity dates of debt securities held at December 31, 2013.

	Maturity		Maturity		Maturity		Maturity
	Less Than		1-5		6-10		in Excess
	1 Year		Years		Years		of 10 Years		Total
PPL
Amortized cost	$	7	$	97	$	54	$	79	$	237
Fair value		7		99		55		79		240
PPL Energy Supply
Amortized cost	$	7	$	97	$	54	$	76	$	234
Fair value		7		99		55		76		237

The following table shows proceeds from and realized gains and losses on sales of available-for-sale securities.
	2013		2012		2011
PPL
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				5		163
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16
PPL Energy Supply
Proceeds from sales of NDT securities (a)	$	144	$	139	$	156
Other proceeds from sales				3
Gross realized gains (b)		17		29		28
Gross realized losses (b)		7		21		16

(a)These proceeds are used to pay income taxes and fees related to managing the trust. Remaining proceeds are reinvested in the trust.

(b)Excludes the impact of other-than-temporary impairment charges recognized on the Statements of Income.

Short-term Investments(PPL, LKE and LG&E)

At December 31, 2010, LG&E held $163million aggregate principal amount of tax-exempt revenue bonds issued by Louisville/Jefferson County, Kentucky on behalf of LG&E that were purchased from the remarketing agent in 2008. In 2011, LG&E received $163million for its investments in these bonds when they were remarketed to unaffiliated investors. No realized or unrealized gains (losses) were recorded on these securities, as the difference between carrying value and fair value was not significant.

NDT Funds(PPL and PPL Energy Supply)

Amounts previously collected from PPL Electric's customers for decommissioning the Susquehanna nuclear plant, less applicable taxes, were deposited in external trust funds for investment and can only be used for future decommissioning costs. To the extent that the actual costs for decommissioning exceed the amounts in the nuclear decommissioning trust funds, PPL Susquehanna would be obligated to fund 90%of the shortfall.

When the fair value of a security is less than amortized cost, PPL and PPL Energy Supply must make certain assertions to avoid recording an other-than-temporary impairment that requires a current period charge to earnings. The NRC requires that nuclear decommissioning trusts be managed by independent investment managers, with discretion to buy and sell securities in the trusts. As a result, PPL and PPL Energy Supply have been unable to demonstrate the ability to hold an impaired security until it recovers its value; therefore, unrealized losses on equity securities for all periods presented, represented other-than-temporary impairments that required a current period charge to earnings. PPL and PPL Energy Supply recorded impairments for certain securities invested in the NDT funds of $6 million for 2011. The amounts for 2013 and 2012 are insignificant. These impairments are reflected on the Statements of Income in "Other-Than-Temporary Impairments."