Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Revenues	$ 9,061	$ 10,415	$ 10,886
Operating Expenses [Abstract]
Energy Costs	3,001	3,261	3,886
Operation and Maintenance	3,008	2,978	3,150
Depreciation and Amortization	1,476	1,214	1,227
Total Operating Expenses	7,485	7,453	8,263
OPERATING INCOME	1,576	2,962	2,623
Income from Equity Method Investments	11	12	13
Other Income	191	254	290
Other Deductions	(67)	(102)	(61)
Other-than-Temporary-Impairments	28	53	20
Interest Expense	(385)	(393)	(389)
INCOME BEFORE INCOME TAXES	1,298	2,680	2,456
Income Tax (Expense) Benefit	(411)	(1,001)	(938)
Net Income	$ 887	$ 1,679	$ 1,518
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC	505	505	506
DILUTED	508	508	508
EARNINGS PER SHARE:
NET INCOME, BASIC	$ 1.76	$ 3.32	$ 3.00
NET INCOME, DILUTED	$ 1.75	$ 3.30	$ 2.99
PSE&G [Member]
Operating Revenues	$ 6,221	$ 6,636	$ 6,766
Operating Expenses [Abstract]
Energy Costs	2,567	2,722	2,909
Operation and Maintenance	1,475	1,560	1,558
Depreciation and Amortization	565	892	906
Total Operating Expenses	4,607	5,174	5,373
OPERATING INCOME	1,614	1,462	1,393
Other Income	83	79	61
Other Deductions	(4)	(4)	(3)
Interest Expense	(289)	(280)	(277)
INCOME BEFORE INCOME TAXES	1,404	1,257	1,174
Income Tax (Expense) Benefit	(515)	(470)	(449)
Net Income	889	787	725
Power [Member]
Operating Revenues	4,023	4,928	5,434
Operating Expenses [Abstract]
Energy Costs	1,986	2,150	2,747
Operation and Maintenance	1,143	1,057	1,186
Depreciation and Amortization	881	291	292
Total Operating Expenses	4,010	3,498	4,225
OPERATING INCOME	13	1,430	1,209
Income from Equity Method Investments	11	14	14
Other Income	102	169	222
Other Deductions	(57)	(72)	(52)
Other-than-Temporary-Impairments	28	53	20
Interest Expense	(84)	(121)	(122)
INCOME BEFORE INCOME TAXES	(43)	1,367	1,251
Income Tax (Expense) Benefit	61	(511)	(491)
Net Income	$ 18	$ 856	$ 760