Available-For-Sale Securities (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2011

Dec. 31, 2010

Available For Sale Securities [Line Items]

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

	As of September 30, 2011
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	Millions
Equity Securities	$	537	$	93	$	(55	)	$	575
Debt Securities
Government Obligations		340		16		(1	)		355
Other Debt Securities		273		14		(3	)		284
Total Debt Securities		613		30		(4	)		639
Other Securities		66		0		0			66
Total Available-for-Sale Securities	$	1,216	$	123	$	(59	)	$	1,280

	As of December 31, 2010
	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
	Millions
Equity Securities	$	525	$	213	$	(3	)	$	735
Debt Securities
Government Obligations		301		6		(4	)		303
Other Debt Securities		247		10		(2	)		255
Total Debt Securities		548		16		(6	)		558
Other Securities		70		0		0			70
Total Available-for-Sale Securities	$	1,143	$	229	$	(9	)	$	1,363

Accounts Receivable And Accounts Payable Related To NDT Fund

	As of September 30,		As of December 31,
	2011		2010
	Millions
Accounts Receivable	$	100	$	35
Accounts Payable	$	95	$	60

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

	As of September 30, 2011										As of December 31, 2010
	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)	$	252	$	(55	)	$	0	$	0		$	55	$	(3	)	$	0	$	0
Debt Securities
Government Obligations (B)		72		(1	)		2		0			106		(4	)		1		0
Other Debt Securities (C)		65		(2	)		6		(1	)		65		(1	)		8		(1	)
Total Debt Securities		137		(3	)		8		(1	)		171		(5	)		9		(1	)
Other Securities		1		0			0		0			0		0			0		0
Total Available-for-Sale Securities	$	390	$	(58	)	$	8	$	(1	)	$	226	$	(8	)	$	9	$	(1	)

(A) Equity Securities—Investments in marketable equity securities within the NDT funds are primarily investments in common stocks within a broad range of industries and sectors. The unrealized losses are distributed over hundreds of companies with limited impairment durations. Power does not consider these securities to be other-than-temporarily impaired as of September 30, 2011.

(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 September 30, 2011.

(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 September 30, 2011.

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2011			2010			2011			2010
	Millions						Millions
Proceeds from Sales	$	431		$	302		$	1,088		$	728
Net Realized Gains (Losses)
Gross Realized Gains	$	26		$	26		$	121		$	86
Gross Realized Losses		(10	)		(8	)		(28	)		(31	)
Net Realized Gains	$	16		$	18		$	93		$	55

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

Time Frame	Fair Value
	Millions
Less than 1 Year	$	11
1 - 5 Years		141
6 - 10 Years		172
11 - 15 Years		43
16 - 20 Years		18
Over 20 Years		254
	$	639

Securities Held In The Rabbi Trusts

	As of September 30, 2011
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	Millions
Equity Securities	$	16	$	2	$	0	$	18
Debt Securities		147		5		0		152
Total PSEG Available-for-Sale Securities	$	163	$	7	$	0	$	170

	As of December 31, 2010
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	Millions
Equity Securities	$	16	$	2	$	0	$	18
Debt Securities		142		0		0		142
Total PSEG Available-for-Sale Securities	$	158	$	2	$	0	$	160

Rabbi Trusts [Member]

Available For Sale Securities [Line Items]

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2011		2010		2011		2010
	Millions				Millions
Proceeds from Sales	$	0	$	158	$	0	$	158
Net Realized Gains (Losses)
Gross Realized Gains	$	0	$	31	$	0	$	31
Gross Realized Losses		0		0		0		0
Net Realized Gains (Losses)	$	0	$	31	$	0	$	31

Fair Value Of The Rabbi Trusts

	As of September 30, 2011		As of December 31, 2010
	Millions
Power	$	33	$	32
PSE&G		57		54
Other		80		74
Total PSEG Available-for-Sale Securities	$	170	$	160