Available-for-Sale Securities (Tables)

3 Months Ended

Mar. 31, 2012

Available-for-Sale Securities [Abstract]

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.

					March 31, 2012								December 31, 2011
							Gross		Gross						Gross		Gross
					Amortized		Unrealized		Unrealized				Amortized		Unrealized		Unrealized
					Cost		Gains		Losses		Fair Value		Cost		Gains		Losses		Fair Value
PPL
	NDT funds:
		Cash and cash equivalents			$	8					$	8	$	12					$	12
		Equity securities:
			U.S. large-cap			177	$	152				329		173	$	119				292
			U.S. mid/small-cap			69		64				133		67		50				117
		Debt securities:
			U.S. Treasury			79		8				87		76		10				86
			U.S. government sponsored
				agency		9		1				10		9		1				10
			Municipality			81		4	$	1		84		80		4	$	1		83
			Investment-grade corporate			35		3				38		35		3				38
			Other			2						2		2						2
		Receivables/payables, net				2						2
		Total NDT funds				462		232		1		693		454		187		1		640
	Auction rate securities					25				1		24		25				1		24
	Total				$	487	$	232	$	2	$	717	$	479	$	187	$	2	$	664

PPL Energy Supply
	NDT funds:
		Cash and cash equivalents			$	8					$	8	$	12					$	12
		Equity securities:
			U.S. large-cap			177	$	152				329		173	$	119				292
			U.S. mid/small-cap			69		64				133		67		50				117
		Debt securities:
			U.S. Treasury			79		8				87		76		10				86
			U.S. government sponsored
				agency		9		1				10		9		1				10
			Municipality			81		4	$	1		84		80		4	$	1		83
			Investment-grade corporate			35		3				38		35		3				38
			Other			2						2		2						2
		Receivables/payables, net				2						2
		Total NDT funds				462		232		1		693		454		187		1		640
	Auction rate securities					20				1		19		20				1		19
	Total				$	482	$	232	$	2	$	712	$	474	$	187	$	2	$	659

Scheduled Maturity Dates of Debt Securities

The following table shows the scheduled maturity dates of debt securities held at March 31, 2012.

	Maturity		Maturity		Maturity		Maturity
	Less Than		1-5		5-10		in Excess
	1 Year		Years		Years		of 10 Years		Total
PPL
Amortized cost	$	9	$	77	$	64	$	81	$	231
Fair value		9		80		70		86		245

PPL Energy Supply
Amortized cost	$	9	$	77	$	64	$	76	$	226
Fair value		9		80		70		81		240

Proceeds From and Realized Gains and Losses on Sales of Available-for-sale Securities

The following table shows proceeds from and realized gains and losses on sales of available-for-sale securities for the three months ended March 31.

	2012		2011
PPL
Proceeds from sales of NDT securities (a)	$	34	$	75
Other proceeds from sales				163
Gross realized gains (b)		6		17
Gross realized losses (b)		1		5

PPL Energy Supply
Proceeds from sales of NDT securities (a)	$	34	$	75
Gross realized gains (b)		6		17
Gross realized losses (b)		1		5

(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 in the Statements of Income.