Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 1,275	$ 1,503	$ 1,564
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	0	(122)	0
Depreciation and Amortization	1,054	982	974
Amortization of Nuclear Fuel	173	153	136
Provision for Deferred Income Taxes (Other than Leases) and ITC	721	811	1,106
Non-Cash Employee Benefit Plan Costs	271	175	315
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	93	(55)	(336)
Loss on Leases, net of tax	0	170	0
Net (Gain) Loss on Lease Investments	(49)	(55)	(56)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	63	(165)	50
Deferred Storm Costs	(90)	(60)	(8)
Net Change in Regulatory Assets and Liabilities	(132)	(130)	(58)
Cost of Removal	(116)	(62)	(58)
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(118)	(117)	(106)
Net Change in Certain Current Assets and Liabilities	97	247	(221)
Net Change in Certain Current Assets and Liabilities:
Net Change in Tax Receivable	(211)	673	(689)
Employee Benefit Plan Funding and Related Payments	(314)	(508)	(508)
Other	70	117	59
Net Cash Provided By (Used In) Operating Activities	2,787	3,557	2,164
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(2,574)	(2,083)	(2,160)
Proceeds from Sale of Discontinued Operations	0	687	0
Proceeds from Sale of Capital Leases and Investments	58	179	496
Proceeds from Sale of Available-for-Sale Securities	1,666	1,355	1,116
Investments in Available-for-Sale Securities	(1,700)	(1,386)	(1,140)
Other	(75)	(21)	19
Net Cash Provided By (Used In) Investing Activities	(2,625)	(1,269)	(1,669)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	263	(64)	(466)
Issuance of Long-Term Debt	900	794	1,728
Redemption of Long-Term Debt	(1,003)	(1,720)	(972)
Repayment of Non-Recourse Debt	(1)	(1)	(32)
Cash Dividend Paid	(718)	(693)	(693)
Redemption of Preferred Securities	0	0	(80)
Other	(58)	(50)	(50)
Net Cash Provided By (Used In) Financing Activities	(617)	(1,734)	(565)
Net Increase (Decrease) In Cash and Cash Equivalents	(455)	554	(70)
Cash and Cash Equivalents at Beginning of Period	834	280	350
Cash and Cash Equivalents at End of Period	379	834	280
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	121	(219)	1,070
Interest Paid, Net of Amounts Capitalized	402	479	444
Accrued capital expenditures	370	336	235
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	647	1,098	1,143
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	0	(122)	0
Depreciation and Amortization	237	231	194
Amortization of Nuclear Fuel	173	153	136
Provision for Deferred Income Taxes (Other than Leases) and ITC	342	231	650
Interest Accretion on Asset Retirement Obligation	21	18	18
Non-Cash Employee Benefit Plan Costs	70	41	71
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	63	(165)	50
Net Realized (Gains) Losses and (Income) Expense from NDT Fund	(118)	(117)	(106)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	47	(26)	135
Margin Deposit	(116)	49	(91)
Accounts Receivable	24	197	(105)
Accounts Payable	92	(154)	17
Accounts Receivable/Payable-Affiliated Companies, net	(40)	459	(386)
Accrued Interest Payable	(6)	(8)	(3)
Other Current Assets and Liabilities	(16)	38	(63)
Employee Benefit Plan Funding and Related Payments	(72)	(129)	(132)
Other	31	18	38
Net Cash Provided By (Used In) Operating Activities	1,379	1,812	1,566
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(646)	(757)	(825)
Proceeds from Sale of Discontinued Operations	0	687	0
Proceeds from Sale of Available-for-Sale Securities	1,478	1,355	989
Investments in Available-for-Sale Securities	(1,506)	(1,380)	(1,013)
Short-Term Loan-Affiliated Company, net	333	(509)	(398)
Other	(7)	26	42
Net Cash Provided By (Used In) Investing Activities	(348)	(578)	(1,205)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	0	544	594
Redemption of Long-Term Debt	(414)	(1,250)	(248)
Short-Term Loan - Affiliated Company, net	0	0	(194)
Cash Payment of Debt Restructuring/Exchange	(15)	(17)	(13)
Cash Dividend Paid	(600)	(500)	(549)
Other	(7)	(10)	(4)
Net Cash Provided By (Used In) Financing Activities	(1,036)	(1,233)	(414)
Net Increase (Decrease) In Cash and Cash Equivalents	(5)	1	(53)
Cash and Cash Equivalents at Beginning of Period	12	11	64
Cash and Cash Equivalents at End of Period	7	12	11
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	136	171	539
Interest Paid, Net of Amounts Capitalized	119	176	151
Accrued capital expenditures	95	132	111
PSE&G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	528	521	359
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	778	719	750
Provision for Deferred Income Taxes (Other than Leases) and ITC	442	571	444
Interest Accretion on Asset Retirement Obligation	0	0
Non-Cash Employee Benefit Plan Costs	179	118	217
Deferred Storm Costs	(90)	(60)	(8)
Net Change in Regulatory Assets and Liabilities	(132)	(130)	(58)
Cost of Removal	(116)	(62)	(58)
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	(54)	252	(21)
Fuel, Materials and Supplies	(20)	(4)	(20)
Prepayments	88	0	(31)
Net Change in Tax Receivable	16	(16)	0
Accounts Receivable/Payable-Affiliated Companies, net	(132)	197	(286)
Other Current Assets and Liabilities	12	(40)	68
Employee Benefit Plan Funding and Related Payments	(213)	(330)	(327)
Other	(30)	40	(18)
Net Cash Provided By (Used In) Operating Activities	1,256	1,776	1,011
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,770)	(1,302)	(1,257)
Proceeds from Sale of Available-for-Sale Securities	77	0	54
Investments in Available-for-Sale Securities	(77)	0	(54)
Solar Loan Investments	(74)	(51)	(27)
Restricted Funds	(1)	(1)	4
Net Cash Provided By (Used In) Investing Activities	(1,845)	(1,354)	(1,280)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Short-Term Debt	263	0	0
Issuance of Long-Term Debt	900	250	1,114
Redemption of Long-Term Debt	(373)	(264)	(400)
Redemption of Securitization Debt	(216)	(206)	(197)
Cash Dividend Paid	0	(300)	(150)
Redemption of Preferred Securities	0	0	(80)
Other	(12)	(4)	(13)
Net Cash Provided By (Used In) Financing Activities	562	(524)	274
Net Increase (Decrease) In Cash and Cash Equivalents	(27)	(102)	5
Cash and Cash Equivalents at Beginning of Period	143	245	240
Cash and Cash Equivalents at End of Period	116	143	245
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(30)	(514)	73
Interest Paid, Net of Amounts Capitalized	280	297	294
Accrued capital expenditures	$ 275	$ 204	$ 124