Condensed Consolidated Statements Of Cash Flows (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	$ 1,143	$ 1,282
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	(122)	0
Depreciation and Amortization	745	730
Amortization of Nuclear Fuel	114	102
Provision for Deferred Income Taxes (Other than Leases) and ITC	629	205
Non-Cash Employee Benefit Plan Costs	138	236
Net (Gain) Loss on Lease Investments	0	(51)
Leveraged Lease Income, Adjusted for Rents Received and Deferred Taxes	(16)	(391)
Leveraged Lease Reserve, net of tax	170	0
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	(14)	(42)
Over (Under) Recovery of Electric Energy Costs (BGS and NTC) and Gas Costs	100	35
Over (Under) Recovery of Societal Benefits Charge (SBC)	(26)	(55)
Market Transition Charge Refund	(47)	98
Cost of Removal	(43)	(47)
Net Realized (Gains) Losses and (Income) Expense from NDT Funds	(110)	(73)
Realized Gains from Rabbi Trusts	(5)	(31)
Net Change in Tax Receivable	312	0
Net Change in Certain Current Assets and Liabilities	(44)	(237)
Net Change in Certain Current Assets and Liabilities:
Employee Benefit Plan Funding and Related Payments	(486)	(483)
Other	(29)	61
Net Cash Provided By (Used In) Operating Activities	2,409	1,339
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(1,479)	(1,517)
Proceeds from Sale of Discontinued Operations	687	0
Proceeds from the Sale of Capital Leases and Investments	0	427
Proceeds from Sales of Available-for-Sale Securities	1,088	886
Investments in Available-for-Sale Securities	(1,110)	(905)
Other	(13)	13
Net Cash Provided By (Used In) Investing Activities	(827)	(1,096)
CASH FLOWS FROM FINANCING ACTIVITIES
Net Change in Commercial Paper and Loans	(64)	(530)
Issuance of Long-Term Debt	750	1,608
Redemption of Long-Term Debt	(606)	(548)
Repayment of Non-Recourse Debt	(1)	(3)
Redemption of Securitization Debt	(147)	(140)
Cash Dividends Paid on Common Stock	(520)	(520)
Redemption of Preferred Securities	0	(80)
Other	(32)	(48)
Net Cash Provided By (Used In) Financing Activities	(620)	(261)
Net Increase (Decrease) in Cash and Cash Equivalents	962	(18)
Cash and Cash Equivalents at Beginning of Period	280	350
Cash and Cash Equivalents at End of Period	1,242	332
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	60	1,080
Interest Paid, Net of Amounts Capitalized	341	299
Power [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	871	952
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Gain on Disposal of Discontinued Operations	(122)	0
Depreciation and Amortization	173	144
Amortization of Nuclear Fuel	114	102
Provision for Deferred Income Taxes (Other than Leases) and ITC	74	145
Non-Cash Employee Benefit Plan Costs	33	53
Net Realized and Unrealized (Gains) Losses on Energy Contracts and Other Derivatives	(14)	(42)
Net Realized (Gains) Losses and (Income) Expense from NDT Funds	(110)	(73)
Net Change in Certain Current Assets and Liabilities:
Fuel, Materials and Supplies	(82)	(2)
Margin Deposit	(63)	(26)
Accounts Receivable	157	16
Accounts Payable	(103)	(99)
Accounts Receivable/Payable-Affiliated Companies, net	650	186
Accrued Interest Payable	23	41
Other Current Assets and Liabilities	48	(42)
Employee Benefit Plan Funding and Related Payments	(127)	(131)
Other	(35)	32
Net Cash Provided By (Used In) Operating Activities	1,487	1,256
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(530)	(579)
Proceeds from Sale of Discontinued Operations	687	0
Proceeds from Sales of Available-for-Sale Securities	1,088	759
Investments in Available-for-Sale Securities	(1,106)	(778)
Short-Term Loan - Affiliated Company, net	(1,176)	(309)
Other	19	28
Net Cash Provided By (Used In) Investing Activities	(1,018)	(879)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	500	594
Redemption of Long-Term Debt	(606)	(248)
Cash Dividends Paid on Common Stock	(350)	(550)
Short-Term Loan - Affiliated Company, net	0	(194)
Other	(10)	(17)
Net Cash Provided By (Used In) Financing Activities	(466)	(415)
Net Increase (Decrease) in Cash and Cash Equivalents	3	(38)
Cash and Cash Equivalents at Beginning of Period	11	64
Cash and Cash Equivalents at End of Period	14	26
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	110	558
Interest Paid, Net of Amounts Capitalized	111	85
PSE&G [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	422	276
Adjustments to Reconcile Net Income to Net Cash Flows from Operating Activities:
Depreciation and Amortization	548	563
Provision for Deferred Income Taxes (Other than Leases) and ITC	563	41
Non-Cash Employee Benefit Plan Costs	92	162
Over (Under) Recovery of Electric Energy Costs (BGS and NTC) and Gas Costs	100	35
Over (Under) Recovery of Societal Benefits Charge (SBC)	(26)	(55)
Market Transition Charge Refund	(47)	98
Cost of Removal	(43)	(47)
Net Change in Tax Receivable	(21)	0
Net Change in Certain Current Assets and Liabilities:
Accounts Receivable and Unbilled Revenues	261	117
Fuel, Materials and Supplies	(1)	(17)
Prepayments	(203)	(126)
Accounts Receivable/Payable-Affiliated Companies, net	(381)	(318)
Other Current Assets and Liabilities	(66)	19
Employee Benefit Plan Funding and Related Payments	(311)	(305)
Other	(15)	(16)
Net Cash Provided By (Used In) Operating Activities	872	427
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to Property, Plant and Equipment	(939)	(871)
Solar Loan Investments	(34)	(11)
Proceeds from Sales of Available-for-Sale Securities	0	54
Investments in Available-for-Sale Securities	0	(54)
Other	(1)	(4)
Net Cash Provided By (Used In) Investing Activities	(974)	(886)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of Long-Term Debt	250	1,014
Redemption of Long-Term Debt	0	(300)
Redemption of Securitization Debt	(147)	(140)
Cash Dividends Paid on Common Stock	0	(150)
Redemption of Preferred Securities	0	(80)
Other	(4)	(10)
Net Cash Provided By (Used In) Financing Activities	99	334
Net Increase (Decrease) in Cash and Cash Equivalents	(3)	(125)
Cash and Cash Equivalents at Beginning of Period	245	240
Cash and Cash Equivalents at End of Period	242	115
Supplemental Disclosure of Cash Flow Information:
Income Taxes Paid (Received)	(44)	182
Interest Paid, Net of Amounts Capitalized	$ 225	$ 213