Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Revenues	$ 9,696	$ 9,094	$ 8,966
Operating Expenses [Abstract]
Energy Costs	3,225	2,778	2,901
Operation and Maintenance	3,015	2,901	2,991
Depreciation and Amortization	1,158	1,986	1,476
Total Operating Expenses	7,398	7,665	7,368
OPERATING INCOME	2,298	1,429	1,598
Income from Equity Method Investments	15	14	11
Net Gains (Losses) on Trust Investments	(143)	134	(6)
Other Income (Deductions)	85	82	102
Non-Operating Pension and Other Postretirement Plan Credits (Costs)	76	0	(22)
Interest Expense	(476)	(391)	(385)
Income (Loss) before Income Taxes	1,855	1,268	1,298
Income Tax (Expense) Benefit	(417)	306	(411)
Net Income	$ 1,438	$ 1,574	$ 887
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC	504	505	505
DILUTED	507	507	508
EARNINGS PER SHARE:
NET INCOME, BASIC	$ 2.85	$ 3.12	$ 1.76
NET INCOME, DILUTED	$ 2.83	$ 3.10	$ 1.75
PSE&G [Member]
Operating Revenues	$ 6,471	$ 6,324	$ 6,303
Operating Expenses [Abstract]
Energy Costs	2,520	2,421	2,644
Operation and Maintenance	1,575	1,458	1,465
Depreciation and Amortization	770	685	565
Total Operating Expenses	4,865	4,564	4,674
OPERATING INCOME	1,606	1,760	1,629
Net Gains (Losses) on Trust Investments	(1)	2	0
Other Income (Deductions)	80	85	79
Non-Operating Pension and Other Postretirement Plan Credits (Costs)	59	(8)	(15)
Interest Expense	(333)	(303)	(289)
Income (Loss) before Income Taxes	1,411	1,536	1,404
Income Tax (Expense) Benefit	(344)	(563)	(515)
Net Income	1,067	973	889
Power [Member]
Operating Revenues	4,146	3,860	3,861
Operating Expenses [Abstract]
Energy Costs	2,197	1,913	1,824
Operation and Maintenance	999	1,046	1,139
Depreciation and Amortization	354	1,268	881
Total Operating Expenses	3,550	4,227	3,844
OPERATING INCOME	596	(367)	17
Income from Equity Method Investments	15	14	11
Net Gains (Losses) on Trust Investments	(140)	125	(6)
Other Income (Deductions)	21	20	23
Non-Operating Pension and Other Postretirement Plan Credits (Costs)	15	8	(4)
Interest Expense	(76)	(50)	(84)
Income (Loss) before Income Taxes	431	(250)	(43)
Income Tax (Expense) Benefit	(66)	729	61
Net Income	$ 365	$ 479	$ 18