Condensed Consolidated Statements Of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 849	$ 715
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	(82)	0
Depreciation and Amortization	483	465
Amortization of Nuclear Fuel	75	68
Provision for Deferred Income Taxes (Other than Leases) and ITC	(28)	72
Non-Cash Employee Benefit Plan Costs	101	158
Net Gain (Loss) on Lease Investments	(1)	(16)
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(21)	(172)
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	35	2
Over (Under) Recovery of Electric Energy Costs (BGS and NTC) and Gas Costs	23	(2)
Over (Under) Recovery of Societal Benefits Charge (SBC)	(19)	1
Cost of Removal	(25)	(32)
Market Transition Charge Refund	(29)	122
Net Realized (Gains) Losses and (Income) Expense from NDT Funds	(93)	(48)
Net Change in Tax Receivable	593	0
Net Change in Certain Current Assets and Liabilities	(2)	(364)
Net Change in Certain Current Assets and Liabilities:
Employee Benefit Plan Funding and Related Payments	(465)	(464)
Other	1	15
Net Cash Provided By (Used In) Operating Activities	1,395	520
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,002)	(911)
Proceeds from Sale of Discontinued Operations	352	0
Proceeds from the Sale of Capital Leases and Investments	0	161
Proceeds from Sales of Available-for-Sale Securities	657	426
Investments in Available-for-Sale Securities	(676)	(439)
Other	(4)	8
Net Cash Provided By (Used In) Investing Activities	(673)	(755)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	234	(141)
Issuance of Long-Term Debt	0	1,194
Redemption of Long-Term Debt	(606)	(548)
Repayment of Non-Recourse Debt	(1)	(2)
Redemption of Securitization Debt	(96)	(91)
Cash Dividends Paid on Common Stock	(347)	(347)
Redemption of Preferred Securities	0	(80)
Other	(27)	(43)
Net Cash Provided By (Used In) Financing Activities	(843)	(58)
Net Increase (Decrease) in Cash and Cash Equivalents	(121)	(293)
Cash and Cash Equivalents at Beginning of Period	280	350
Cash and Cash Equivalents at End of Period	159	57
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	57	645
Interest Paid, Net of Amounts Capitalized	259	227
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	569	568
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	(82)	0
Depreciation and Amortization	116	96
Amortization of Nuclear Fuel	75	68
Provision for Deferred Income Taxes (Other than Leases) and ITC	(92)	83
Non-Cash Employee Benefit Plan Costs	24	36
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	35	2
Net Realized (Gains) Losses and (Income) Expense from NDT Funds	(93)	(48)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	99	138
Margin Deposit	(54)	(76)
Accounts Receivable	162	(18)
Accounts Payable	(141)	(50)
Accounts Receivable/Payable-Affiliated Companies, net	649	118
Other Current Assets and Liabilities	10	(56)
Employee Benefit Plan Funding and Related Payments	(125)	(130)
Other	(6)	23
Net Cash Provided By (Used In) Operating Activities	1,146	754
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(323)	(328)
Proceeds from Sale of Discontinued Operations	352	0
Proceeds from Sales of Available-for-Sale Securities	657	426
Investments in Available-for-Sale Securities	(672)	(439)
Short-Term Loan - Affiliated Company, net	(211)	(276)
Other	16	22
Net Cash Provided By (Used In) Investing Activities	(181)	(595)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	0	594
Redemption of Long-Term Debt	(606)	(248)
Cash Dividends Paid on Common Stock	(350)	(350)
Other	(6)	(4)
Short-Term Loan - Affiliated Company, net	0	(194)
Cash Payment for Debt Exchange	0	(13)
Net Cash Provided By (Used In) Financing Activities	(962)	(215)
Net Increase (Decrease) in Cash and Cash Equivalents	3	(56)
Cash and Cash Equivalents at Beginning of Period	11	64
Cash and Cash Equivalents at End of Period	14	8
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	69	404
Interest Paid, Net of Amounts Capitalized	101	78
PSE&G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	268	121
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	351	354
Provision for Deferred Income Taxes (Other than Leases) and ITC	65	(29)
Non-Cash Employee Benefit Plan Costs	67	108
Over (Under) Recovery of Electric Energy Costs (BGS and NTC) and Gas Costs	23	(2)
Over (Under) Recovery of Societal Benefits Charge (SBC)	(19)	1
Cost of Removal	(25)	(32)
Market Transition Charge Refund	(29)	122
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	204	90
Fuel, Materials and Supplies	(2)	(15)
Prepayments	(234)	(254)
Accounts Receivable/Payable-Affiliated Companies, net	(65)	(220)
Other Current Assets and Liabilities	(30)	42
Employee Benefit Plan Funding and Related Payments	(294)	(287)
Other	(1)	(20)
Net Cash Provided By (Used In) Operating Activities	279	(21)
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(674)	(530)
Solar Loan Investments	(23)	(11)
Other	0	(4)
Net Cash Provided By (Used In) Investing Activities	(697)	(545)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	298	223
Issuance of Long-Term Debt	0	600
Redemption of Long-Term Debt	0	(300)
Redemption of Securitization Debt	(96)	(91)
Redemption of Preferred Securities	0	(80)
Other	(3)	(7)
Net Cash Provided By (Used In) Financing Activities	199	345
Net Increase (Decrease) in Cash and Cash Equivalents	(219)	(221)
Cash and Cash Equivalents at Beginning of Period	245	240
Cash and Cash Equivalents at End of Period	26	19
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(44)	82
Interest Paid, Net of Amounts Capitalized	$ 153	$ 153