Available-for-Sale Securities (Tables)

12 Months Ended

Dec. 31, 2015

Nuclear Decommissioning Trust (NDT) Fund [Member]

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

Schedule of Available-for-sale Securities Reconciliation

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

	As of December 31, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	Millions
Equity Securities	$	693	$	185	$	(13	)	$	865
Debt Securities
Government Obligations	483		8		(3		)	488
Other Debt Securities	366		3		(10		)	359
Total Debt Securities	849		11		(13		)	847
Other Securities	42		—		—			42
Total NDT Available-for-Sale Securities	$	1,584	$	196	$	(26	)	$	1,754

	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

These 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 Consolidated Balance Sheets as shown in the following table.

	As of December 31, 2015		As of December 31, 2014
	Millions
Accounts Receivable	$	17	$	10
Accounts Payable	$	10	$	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 12 months and greater than 12 months:

	As of December 31, 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)	$	151	$	(13	)	$	1	$	—		$	162	$	(8	)	$	1	$	—
Debt Securities
Government Obligations (B)	245		(2		)	19		(1		)	95		—			28		(1		)
Other Debt Securities (C)	222		(7		)	36		(3		)	99		(1		)	30		(2		)
Total Debt Securities	467		(9		)	55		(4		)	194		(1		)	58		(3		)
NDT Available-for-Sale Securities	$	618	$	(22	)	$	56	$	(4	)	$	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 companies with limited impairment durations. Power does not consider these securities to be other-than-temporarily impaired as of December 31, 2015.

(B) Debt Securities (Government)—Unrealized losses on Power’s NDT investments in U.S. Treasury obligations and Federal Agency mortgage-backed securities were caused by interest rate changes. Since these investments are guaranteed by the U.S. government or an agency of the U.S. 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 December 31, 2015.

(C) Debt Securities (Corporate)—Power’s investments in corporate bonds are primarily in 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 December 31, 2015.

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

The available-for-sale debt securities held as of December 31, 2015 had the following maturities:

Time Frame	Fair Value
	Millions
Less than one year	$	16
1 - 5 years	209
6 - 10 years	200
11 - 15 years	57
16 - 20 years	49
Over 20 years	316
Total NDT Available-for-Sale Debt Securities	$	847

Schedule of Realized Gain (Loss)

The proceeds from the sales of and the net realized gains on securities in the NDT Fund were:

	Years Ended December 31,
	2015			2014			2013
	Millions
Proceeds from Sales (A)	$	1,397		$	1,448		$	1,070
Net Realized Gains (Losses):
Gross Realized Gains	$	97		$	177		$	112
Gross Realized Losses	(37		)	(23		)	(26		)
Net Realized Gains (Losses) on NDT Fund	$	60		$	154		$	86

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

Rabbi Trust [Member]

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

Schedule of Available-for-sale Securities Reconciliation

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

	As of December 31, 2015
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	Millions
Equity Securities	$	12	$	10	$	—		$	22
Debt Securities
Government Obligations	108		1		(1		)	108
Other Debt Securities	82		—		(1		)	81
Total Debt Securities	190		1		(2		)	189
Other Securities	2		—		—			2
Total Rabbi Trust Available-for-Sale Securities	$	204	$	11	$	(2	)	$	213

	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

These 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 Consolidated Balance Sheets as show in the following table.

	As of December 31, 2015		As of December 31, 2014
	Millions
Accounts Receivable	$	1	$	1
Accounts Payable	$	—	$	—

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 12 months and greater than 12 months:

	As of December 31, 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)	53		(1		)	2		—		2		—		—		—
Other Debt Securities (C)	46		(1		)	9		—		24		—		—		—
Total Debt Securities	99		(2		)	11		—		26		—		—		—
Rabbi Trust Available-for-Sale Securities	$	99	$	(2	)	$	11	$	—	$	26	$	—	$	—	$	—

(A) Equity Securities—Investments in marketable equity securities within the Rabbi Trust Fund is 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 U.S. Treasury obligations and Federal Agency mortgage-backed securities were caused by interest rate changes. Since these investments are guaranteed by the U.S. government or an agency of the U.S. 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 December 31, 2015.

(C) Debt Securities (Corporate)—PSEG’s investments in corporate bonds are primarily in 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 December 31, 2015.

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

The Rabbi Trust available-for-sale debt securities held as of December 31, 2015 had the following maturities:

Time Frame	Fair Value
	Millions
Less than one year	$	3
1 - 5 years	49
6 - 10 years	44
11 - 15 years	5
16 - 20 years	8
Over 20 years	80
Total Rabbi Trust Available-for-Sale Debt Securities	$	189

Schedule of Realized Gain (Loss)

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

	Years Ended December 31,
	2015			2014			2013
	Millions
Proceeds from Rabbi Trust Sales (A)	$	104		$	467		$	89
Net Realized Gains (Losses):
Gross Realized Gains	$	3		$	4		$	4
Gross Realized Losses	(2		)	(3		)	(3		)
Net Realized Gains (Losses) on Rabbi Trust	$	1		$	1		$	1

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

Rabbi Trust Fair Value by Company

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

	As of December 31, 2015		As of December 31, 2014
	Millions
PSE&G	$	42	$	41
Power	52		45
Other	119		105
Total Rabbi Trust Available-for-Sale Securities	$	213	$	191