Available-for-Sale Securities (Tables)

6 Months Ended

Jun. 30, 2015

Schedule of Available-for-sale Securities [Line Items]

Fair Values And Gross Unrealized Gains And Losses For The Securities Held In The NDT Fund

The following tables show the fair values and gross unrealized gains and losses for the securities held in the NDT Fund.

	As of June 30, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	Millions
Equity Securities	$	697	$	234	$	(10	)	$	921
Debt Securities
Government Obligations	451		7		(3		)	455
Other Debt Securities	388		4		(6		)	386
Total Debt Securities	839		11		(9		)	841
Other Securities	30		—		—			30
Total NDT Available-for-Sale Securities	$	1,566	$	245	$	(19	)	$	1,792

	As of December 31, 2014
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	Millions
Equity Securities	$	685	$	220	$	(8	)	$	897
Debt Securities
Government Obligations	430		9		(1		)	438
Other Debt Securities	333		9		(3		)	339
Total Debt Securities	763		18		(4		)	777
Other Securities	106		—		—			106
Total NDT Available-for-Sale Securities	$	1,554	$	238	$	(12	)	$	1,780

Schedule Of Accounts Receivable And Accounts Payable in the NDT Funds

The amounts in the preceding tables do not include receivables and payables for NDT Fund transactions which have not settled at the end of each period. Such amounts are included in Accounts Receivable and Accounts Payable on the Condensed Consolidated Balance Sheets as shown in the following table.

	As of		As of
	June 30, 2015		December 31, 2014
	Millions
Accounts Receivable	$	42	$	10
Accounts Payable	$	32	$	2

Value Of Securities That Have Been In An Unrealized Loss Position For Less Than And Greater Than 12 Months

The following table shows the value of securities in the NDT Fund that have been in an unrealized loss position for less than and greater than 12 months.

	As of June 30, 2015										As of December 31, 2014
	Less Than 12 Months					Greater Than 12 Months					Less Than 12 Months					Greater Than 12 Months
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses
	Millions
Equity Securities (A)	$	114	$	(10	)	$	3	$	—		$	162	$	(8	)	$	1	$	—
Debt Securities
Government Obligations (B)	156		(3		)	22		—			95		—			28		(1		)
Other Debt Securities (C)	199		(4		)	22		(2		)	99		(1		)	30		(2		)
Total Debt Securities	355		(7		)	44		(2		)	194		(1		)	58		(3		)
NDT Available-for-Sale Securities	$	469	$	(17	)	$	47	$	(2	)	$	356	$	(9	)	$	59	$	(3	)

(A) Equity Securities—Investments in marketable equity securities within the NDT Fund are primarily in common stocks within a broad range of industries and sectors. The unrealized losses are distributed over a broad range of securities with limited impairment durations. Power does not consider these securities to be other-than-temporarily impaired as of June 30, 2015.

(B) Debt Securities (Government)—Unrealized losses on Power’s NDT investments in United States Treasury obligations and Federal Agency mortgage-backed securities were caused by interest rate changes. Since these investments are guaranteed by the United States government or an agency of the United States government, it is not expected that these securities will settle for less than their amortized cost basis, since Power does not intend to sell nor will it be more-likely-than-not required to sell. Power does not consider these securities to be other-than-temporarily impaired as of June 30, 2015.

(C) Debt Securities (Other)—Power’s investments in corporate bonds, collateralized mortgage obligations, asset-backed securities and municipal government obligations are limited to investment grade securities. It is not expected that these securities would settle for less than their amortized cost. Since Power does not intend to sell these securities nor will it be more-likely-than-not required to sell, Power does not consider these debt securities to be other-than-temporarily impaired as of June 30, 2015.

Proceeds From The Sales Of And The Net Realized Gains On Securities In The NDT Funds And Rabbi Trusts

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015			2014
	Millions
Proceeds from NDT Fund Sales (A)	$	232		$	313		$	822		$	558
Net Realized Gains (Losses) on NDT Fund:
Gross Realized Gains	14			33			33			56
Gross Realized Losses	(4		)	(5		)	(13		)	(9		)
Net Realized Gains (Losses) on NDT Fund	$	10		$	28		$	20		$	47

(A) Includes activity in accounts related to the liquidation of funds being transitioned to new managers

Amount Of Available-For-Sale Debt Securities By Maturity Periods

The NDT available-for-sale debt securities held as of June 30, 2015 had the following maturities:

Time Frame	Fair Value
	Millions
Less than one year	$	9
1 - 5 years	229
6 - 10 years	197
11 - 15 years	53
16 - 20 years	47
Over 20 years	306
Total NDT Available-for-Sale Debt Securities	$	841

Rabbi Trust [Member]

Schedule of Available-for-sale Securities [Line Items]

Value Of Securities That Have Been In An Unrealized Loss Position For Less Than And Greater Than 12 Months

The following table shows the value of securities in the Rabbi Trust Fund that have been in an unrealized loss position for less than and greater than 12 months.

	As of June 30, 2015									As of December 31, 2014
	Less Than 12 Months					Greater Than 12 Months				Less Than 12 Months				Greater Than 12 Months
	Fair Value		Gross Unrealized Losses			Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
	Millions
Equity Securities (A)	$	—	$	—		$	—	$	—	$	—	$	—	$	—	$	—
Debt Securities
Government Obligations (B)	19		—			1		—		2		—		—		—
Other Debt Securities (C)	39		(1		)	7		—		24		—		—		—
Total Debt Securities	58		(1		)	8		—		26		—		—		—
Rabbi Trust Available-for-Sale Securities	$	58	$	(1	)	$	8	$	—	$	26	$	—	$	—	$	—

(A) Equity Securities—Investments in marketable equity securities within the Rabbi Trust Fund are through a mutual fund which invests primarily in common stocks within a broad range of industries and sectors.

(B) Debt Securities (Government)—Unrealized losses on PSEG’s Rabbi Trust investments in United States Treasury obligations and Federal Agency mortgage-backed securities were caused by interest rate changes. Since these investments are guaranteed by the United States government or an agency of the United States government, it is not expected that these securities will settle for less than their amortized cost basis, since PSEG does not intend to sell nor will it be more-likely-than-not required to sell. PSEG does not consider these securities to be other-than-temporarily impaired as of June 30, 2015.

(C) Debt Securities (Other)—PSEG’s investments in corporate bonds, collateralized mortgage obligations, asset-backed securities and municipal government obligations are limited to investment grade securities. It is not expected that these securities would settle for less than their amortized cost. Since PSEG does not intend to sell these securities nor will it be more-likely-than-not required to sell, PSEG does not consider these debt securities to be other-than-temporarily impaired as of June 30, 2015.

Securities Held In The Rabbi Trusts

The following tables show the fair values, gross unrealized gains and losses and amortized cost basis for the securities held in the Rabbi Trust.

	As of June 30, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	Millions
Equity Securities	$	12	$	10	$	—		$	22
Debt Securities
Government Obligations	99		1		—			100
Other Debt Securities	90		1		(1		)	90
Total Debt Securities	189		2		(1		)	190
Other Securities	—		—		—			—
Total Rabbi Trust Available-for-Sale Securities	$	201	$	12	$	(1	)	$	212

	As of December 31, 2014
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	Millions
Equity Securities	$	12	$	11	$	—	$	23
Debt Securities
Government Obligations	89		2		—		91
Other Debt Securities	74		1		—		75
Total Debt Securities	163		3		—		166
Other Securities	2		—		—		2
Total Rabbi Trust Available-for-Sale Securities	$	177	$	14	$	—	$	191

Schedule of Accounts Receivable and Accounts Payable in the Rabbi Trust Funds [Table Text Block]

The amounts in the preceding tables do not include receivables and payables for Rabbi Trust Fund transactions which have not settled at the end of each period. Such amounts are included in Accounts Receivable and Accounts Payable on the Condensed Consolidated Balance Sheets as shown in the following table.

	As of		As of
	June 30, 2015		December 31, 2014
	Millions
Accounts Receivable	$	3	$	1
Accounts Payable	$	2	$	—

Proceeds From The Sales Of And The Net Realized Gains On Securities In The NDT Funds And Rabbi Trusts

The proceeds from the sales of and the net realized gains (losses) on securities in the Rabbi Trust Fund were:

	Three Months Ended					Six Months Ended
	June 30,					June 30,
	2015		2014			2015		2014
	Millions
Proceeds from Rabbi Trust Sales (A)	$	44	$	14		$	63	$	26
Net Realized Gains (Losses) on Rabbi Trust:
Gross Realized Gains	$	2	$	—		$	2	$	2
Gross Realized Losses	—		(1		)	—		(1		)
Net Realized Gains (Losses) on Rabbi Trust	$	2	$	(1	)	$	2	$	1

(A) Includes activity in accounts related to the liquidation of funds being transitioned to new managers

Amount Of Available-For-Sale Debt Securities By Maturity Periods

The Rabbi Trust available-for-sale debt securities held as of June 30, 2015 had the following maturities:

Time Frame	Fair Value
	Millions
Less than one year	$	1
1 - 5 years	56
6 - 10 years	37
11 - 15 years	9
16 - 20 years	8
Over 20 years	79
Total Rabbi Trust Available-for-Sale Debt Securities	$	190

Fair Value Of The Rabbi Trusts

The fair value of assets in the Rabbi Trust related to PSEG, PSE&G and Power are detailed as follows:

	As of		As of
	June 30, 2015		December 31, 2014
	Millions
PSE&G	$	42	$	41
Power	52		45
Other	118		105
Total Rabbi Trust Available-for-Sale Securities	$	212	$	191