Financial Risk Management Activities (Tables)

3 Months Ended

Mar. 31, 2012

Financial Risk Management Activities [Abstract]

Schedule Of Derivative Transactions Designated And Effective As Cash Flow Hedges

	As of March 31, 2012		As of December 31, 2011
	Millions
Fair Value of Cash Flow Hedges	$	54	$	57
Impact on Accumulated Other Comprehensive Income (Loss) (after tax)	$	33	$	33

Schedule Of Derivative Instruments Fair Value In Balance Sheets

	As of March 31, 2012
	Power												PSE&G			PSEG			Consolidated
	Cash Flow Hedges			Non Hedges									Non Hedges			Fair Value Hedges
Balance Sheet Location	Energy- Related Contracts			Energy- Related Contracts			Netting (A)			Total Power			Energy- Related Contracts			Interest Rate Swaps			Total Derivatives
	Millions
Derivative Contracts
Current Assets	$	52		$	644		$	(510	)	$	186		$	0		$	16		$	202
Noncurrent Assets		8			147			(104	)		51			34			46			131
Total Mark-to-Market Derivative Assets	$	60		$	791		$	(614	)	$	237		$	34		$	62		$	333
Derivative Contracts
Current Liabilities	$	(5	)	$	(602	)	$	455		$	(152	)	$	(2	)	$	0		$	(154	)
Noncurrent Liabilities		(1	)		(128	)		111			(18	)		0			(2	)		(20	)
Total Mark-to-Market Derivative (Liabilities)	$	(6	)	$	(730	)	$	566		$	(170	)	$	(2	)	$	(2	)	$	(174	)
Total Net Mark-to-Market Derivative Assets (Liabilities)	$	54		$	61		$	(48	)	$	67		$	32		$	60		$	159

	As of December 31, 2011
	Power												PSE&G			PSEG			Consolidated
	Cash Flow Hedges			Non Hedges									Non Hedges			Fair Value Hedges
Balance Sheet Location	Energy- Related Contracts			Energy- Related Contracts			Netting (A)			Total Power			Energy- Related Contracts			Interest Rate Swaps			Total Derivatives
	Millions
Derivative Contracts
Current Assets	$	55		$	532		$	(448	)	$	139		$	0		$	17		$	156
Noncurrent Assets		8			121			(74	)		55			4			47			106
Total Mark-to-Market Derivative Assets	$	63		$	653		$	(522	)	$	194		$	4		$	64		$	262
Derivative Contracts
Current Liabilities	$	(5	)	$	(506	)	$	387		$	(124	)	$	(7	)	$	0		$	(131	)
Noncurrent Liabilities		(1	)		(76	)		53			(24	)		0			(2	)		(26	)
Total Mark-to-Market Derivative (Liabilities)	$	(6	)	$	(582	)	$	440		$	(148	)	$	(7	)	$	(2	)	$	(157	)
Total Net Mark-to-Market Derivative Assets (Liabilities)	$	57		$	71		$	(82	)	$	46		$	(3	)	$	62		$	105

(A) Represents the netting of fair value balances with the same counterparty (where the right of offset exists) and the application of collateral. As of March 31, 2012 and December 31, 2011, net cash collateral received of $48 million and $82 million, respectively, was netted against the corresponding net derivative contract positions. Of the $48 million as of March 31, 2012, cash collateral of $(79) million and $(9) million were netted against current assets and noncurrent assets, respectively, and cash collateral of $24 million and $16 million were netted against current liabilities and noncurrent liabilities, respectively. Of the $82 million as of December 31, 2011, cash collateral of $(77) million and $(23) million were netted against current assets and noncurrent assets, respectively, and cash collateral of $16 million and $2 million were netted against current liabilities and noncurrent liabilities, respectively.

Schedule Of Derivative Instruments Designated As Cash Flow Hedges

Derivatives in Cash Flow Hedging Relationships	Amount of Pre-Tax Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion)					Location of Pre-Tax Gain (Loss)  Reclassified from AOCI into Income	Amount of Pre-Tax Gain (Loss) Reclassified from AOCI into Income (Effective Portion)					Location of Pre-Tax Gain (Loss)  Recognized in Income on Derivatives (Ineffective Portion)	Amount of Pre-Tax Gain (Loss) Recognized in Income on Derivatives (Ineffective Portion)
	Three Months Ended March 31,						Three Months Ended March 31,						Three Months Ended March 31,
	2012			2011			2012			2011			2012			2011
	Millions
PSEG and Power
Energy-Related Contracts	$	38		$	13	Operating Revenues	$	39		$	66	Operating Revenues	$	(1	)	$	(2	)
Energy-Related Contracts		(4	)		2	Energy Costs		(4	)		3			0			0
Total PSEG	$	34		$	15		$	35		$	69		$	(1	)	$	(2	)

Schedule Of Reconciliation For Derivative Activity Included In Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Income	Pre-Tax			After-Tax
	Millions
Balance as of December 31, 2010	$	188		$	111
Gain Recognized in AOCI		80			47
Less: Gain Reclassified into Income		(214	)		(127	)
Balance as of December 31, 2011	$	54		$	31
Gain Recognized in AOCI		34			20
Less: Gain Reclassified into Income		(35	)		(20	)
Balance as of March 31, 2012	$	53		$	31

Schedule Of Derivative Instruments Not Designated As Hedging Instruments And Impact On Results Of Operations

Derivatives Not Designated as Hedges	Location of Pre-Tax Gain (Loss) Recognized in Income on Derivatives	Pre-Tax Gain (Loss) Recognized in Income on Derivatives
		Three Months Ended March  31,
		2012			2011
		Millions
PSEG and Power
Energy-Related Contracts	Operating Revenues	$	195		$	(42	)
Energy-Related Contracts	Energy Costs		(26	)		3
Total PSEG and Power		$	169		$	(39	)

Schedule Of Gross Volume, On Absolute Value Basis For Derivative Contracts

Type	Notional	Total		PSEG		Power		PSE&G
	Millions
As of March 31, 2012
Natural Gas	Dth		590		0		366		224
Electricity	MWh		138		0		138		0
FTRs	MWh		6		0		6		0
Interest Rate Swaps	US Dollars		1,100		1,100		0		0
Coal	Tons		1		0		1		0
As of December 31, 2011
Natural Gas	Dth		612		0		377		235
Electricity	MWh		137		0		137		0
FTRs	MWh		12		0		12		0
Interest Rate Swaps	US Dollars		1,100		1,100		0		0
Coal	Tons		1		0		1		0

Schedule Providing Credit Risk From Others, Net Of Collateral

Rating	Current Exposure		Securities held as Collateral		Net Exposure		Number of Counterparties >10%		Net Exposure of Counterparties >10%
	Millions								Millions
Investment Grade—External Rating	$	674	$	104	$	669		2	$	400	(A)
Non-Investment Grade—External Rating		26		0		26		0		0
Investment Grade—No External Rating		7		0		7		0		0
Non-Investment Grade—No External Rating		0		0		0		0		0
Total	$	707	$	104	$	702		2	$	400

(A) Includes net exposure of $302 million with PSE&G. The remaining net exposure of $98 million is with two nonaffiliated power purchasers which are regulated investment grade counterparties.