Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Revenues	$ 10,415	$ 10,886	$ 9,968
Operating Expenses [Abstract]
Energy Costs	3,261	3,886	3,536
Operation and Maintenance	2,978	3,150	2,887
Depreciation and Amortization	1,214	1,227	1,178
Taxes Other Than Income Taxes	0	0	68
Total Operating Expenses	7,453	8,263	7,669
OPERATING INCOME	2,962	2,623	2,299
Income from Equity Method Investments	12	13	11
Other Income	254	290	213
Other Deductions	(102)	(61)	(54)
Other-than-Temporary-Impairments	53	20	12
Interest Expense	(393)	(389)	(402)
INCOME BEFORE INCOME TAXES	2,680	2,456	2,055
Income Tax (Expense) Benefit	(1,001)	(938)	(812)
Net Income	$ 1,679	$ 1,518	$ 1,243
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC	505	506	506
DILUTED	508	508	508
EARNINGS PER SHARE:
NET INCOME, BASIC	$ 3.32	$ 3.00	$ 2.46
NET INCOME, DILUTED	$ 3.30	$ 2.99	$ 2.45
PSE&G [Member]
Operating Revenues	$ 6,636	$ 6,766	$ 6,655
Operating Expenses [Abstract]
Energy Costs	2,722	2,909	2,841
Operation and Maintenance	1,560	1,558	1,639
Depreciation and Amortization	892	906	872
Taxes Other Than Income Taxes	0	0	68
Total Operating Expenses	5,174	5,373	5,420
OPERATING INCOME	1,462	1,393	1,235
Other Income	79	61	54
Other Deductions	(4)	(3)	(3)
Interest Expense	(280)	(277)	(293)
INCOME BEFORE INCOME TAXES	1,257	1,174	993
Income Tax (Expense) Benefit	(470)	(449)	(381)
Net Income	787	725	612
Power [Member]
Operating Revenues	4,928	5,434	5,063
Operating Expenses [Abstract]
Energy Costs	2,150	2,747	2,496
Operation and Maintenance	1,057	1,186	1,224
Depreciation and Amortization	291	292	273
Total Operating Expenses	3,498	4,225	3,993
OPERATING INCOME	1,430	1,209	1,070
Income from Equity Method Investments	14	14	16
Other Income	169	222	154
Other Deductions	(72)	(52)	(49)
Other-than-Temporary-Impairments	53	20	12
Interest Expense	(121)	(122)	(116)
INCOME BEFORE INCOME TAXES	1,367	1,251	1,063
Income Tax (Expense) Benefit	(511)	(491)	(419)
Net Income	$ 856	$ 760	$ 644