Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Revenues	$ 10,886us-gaap_Revenues	$ 9,968us-gaap_Revenues	$ 9,781us-gaap_Revenues
Operating Expenses [Abstract]
Energy Costs	3,886us-gaap_CostOfServicesEnergyServices	3,536us-gaap_CostOfServicesEnergyServices	3,719us-gaap_CostOfServicesEnergyServices
Operation and Maintenance	3,150	2,887	2,632
Depreciation and Amortization	1,227	1,178	1,054
Taxes Other Than Income Taxes	0us-gaap_ExciseAndSalesTaxes	68us-gaap_ExciseAndSalesTaxes	98us-gaap_ExciseAndSalesTaxes
Total Operating Expenses	8,263us-gaap_OperatingExpenses	7,669us-gaap_OperatingExpenses	7,503us-gaap_OperatingExpenses
OPERATING INCOME	2,623us-gaap_OperatingIncomeLoss	2,299us-gaap_OperatingIncomeLoss	2,278us-gaap_OperatingIncomeLoss
Income from Equity Method Investments	13	11	12
Other Income	290us-gaap_OtherNonoperatingIncome	213us-gaap_OtherNonoperatingIncome	260us-gaap_OtherNonoperatingIncome
Other Deductions	(61)us-gaap_OtherNonoperatingExpense	(54)us-gaap_OtherNonoperatingExpense	(98)us-gaap_OtherNonoperatingExpense
Other than Temporary Impairments	20	12	18
Interest Expense	(389)us-gaap_InterestExpense	(402)us-gaap_InterestExpense	(423)us-gaap_InterestExpense
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	2,456	2,055	2,011
Income Tax (Expense) Benefit	(938)us-gaap_IncomeTaxExpenseBenefit	(812)us-gaap_IncomeTaxExpenseBenefit	(736)us-gaap_IncomeTaxExpenseBenefit
Net Income	1,518us-gaap_NetIncomeLoss	1,243us-gaap_NetIncomeLoss	1,275us-gaap_NetIncomeLoss
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC	506	506	506
DILUTED	508	508	507
EARNINGS PER SHARE:
NET INCOME, BASIC	$ 3.00us-gaap_EarningsPerShareBasic	$ 2.46us-gaap_EarningsPerShareBasic	$ 2.52us-gaap_EarningsPerShareBasic
NET INCOME, DILUTED	$ 2.99us-gaap_EarningsPerShareDiluted	$ 2.45us-gaap_EarningsPerShareDiluted	$ 2.51us-gaap_EarningsPerShareDiluted
PSE&G [Member]
Operating Revenues	6,766	6,655	6,626
Operating Expenses [Abstract]
Energy Costs	2,909	2,841	3,159
Operation and Maintenance	1,558	1,639	1,508
Depreciation and Amortization	906	872	778
Taxes Other Than Income Taxes	0	68	98
Total Operating Expenses	5,373	5,420	5,543
OPERATING INCOME	1,393	1,235	1,083
Other Income	61	54	52
Other Deductions	(3)	(3)	(5)
Interest Expense	(277)	(293)	(295)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,174	993	835
Income Tax (Expense) Benefit	(449)	(381)	(307)
Net Income	725	612	528
Power [Member]
Operating Revenues	5,434	5,063	4,873
Operating Expenses [Abstract]
Energy Costs	2,747	2,496	2,381
Operation and Maintenance	1,186	1,224	1,127
Depreciation and Amortization	292	273	242
Total Operating Expenses	4,225	3,993	3,750
OPERATING INCOME	1,209	1,070	1,123
Income from Equity Method Investments	14	16	15
Other Income	222	154	201
Other Deductions	(52)	(49)	(90)
Other than Temporary Impairments	20	12	18
Interest Expense	(122)	(116)	(132)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	1,251	1,063	1,099
Income Tax (Expense) Benefit	(491)	(419)	(433)
Net Income	$ 760	$ 644	$ 666

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