NDT Funds (Tables)

3 Months Ended

Mar. 31, 2016

Available-for-sale Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation

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



	March 31, 2016								December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
NDT funds:
Cash and cash equivalents	$	7	$	—	$	—	$	7	$	11	$	—	$	—	$	11
Equity securities	301		409		—		710		297		406		—		703
Debt securities	233		12		—		245		230		7		—		237
Receivables/payables, net	2		—		—		2		—		—		—		—
Total NDT funds	$	543	$	421	$	—	$	964	$	538	$	413	$	—	$	951

Investments Classified by Contractual Maturity Date

The following table shows the scheduled maturity dates of debt securities held at March 31, 2016.



	Maturity Less Than 1 Year		Maturity 1-5 Years		Maturity 6-10 Years		Maturity in Excess of 10 Years		Total
Amortized cost	$	5	$	106	$	68	$	54	$	233
Fair value	5		109		71		60		245

Schedule of Realized Gain (Loss)

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



	Three Months
	2016		2015
Proceeds from sales of NDT securities (a)	$	54	$	38
Gross realized gains (b)	6		5
Gross realized losses (b)	8		3


(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.