Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating Revenues	$ 2,314	$ 2,249	$ 5,449	$ 5,472
Operating Expenses [Abstract]
Energy Costs	668	789	1,762	2,145
Operation and Maintenance	761	800	1,424	1,656
Depreciation and Amortization	317	295	647	601
Total Operating Expenses	1,746	1,884	3,833	4,402
OPERATING INCOME	568	365	1,616	1,070
Income from Equity Method Investments	4	3	7	7
Other Income	76	62	124	110
Other Deductions	(10)	(10)	(22)	(22)
Other-Than-Temporary Impairments	(10)	(2)	(15)	(4)
Interest Expense	(97)	(94)	(195)	(191)
INCOME BEFORE INCOME TAXES	531	324	1,515	970
Income Tax Expense	(186)	(112)	(584)	(372)
Net Income	$ 345	$ 212	$ 931	$ 598
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	506	506	506	506
DILUTED (in shares)	508	508	508	508
EARNINGS PER SHARE:
BASIC (in dollars per share)	$ 0.68	$ 0.42	$ 1.84	$ 1.18
DILUTED (in dollars per share)	0.68	0.42	1.83	1.18
DIVIDENDS PAID PER SHARE OF COMMON STOCK (in dollars per share)	$ 0.39	$ 0.37	$ 0.78	$ 0.74
PSE And G [Member]
Operating Revenues	$ 1,466	$ 1,435	$ 3,468	$ 3,580
Operating Expenses [Abstract]
Energy Costs	544	565	1,436	1,610
Operation and Maintenance	368	362	780	824
Depreciation and Amortization	234	217	481	444
Total Operating Expenses	1,146	1,144	2,697	2,878
OPERATING INCOME	320	291	771	702
Other Income	19	14	37	28
Other Deductions	(1)	(1)	(2)	(1)
Interest Expense	(67)	(67)	(136)	(135)
INCOME BEFORE INCOME TAXES	271	237	670	594
Income Tax Expense	(104)	(86)	(261)	(229)
Net Income	167	151	409	365
Power [Member]
Operating Revenues	1,025	986	2,750	2,686
Operating Expenses [Abstract]
Energy Costs	409	520	1,302	1,564
Operation and Maintenance	313	327	485	629
Depreciation and Amortization	75	72	151	144
Total Operating Expenses	797	919	1,938	2,337
OPERATING INCOME	228	67	812	349
Income from Equity Method Investments	5	3	8	7
Other Income	55	46	84	79
Other Deductions	(7)	(9)	(18)	(19)
Other-Than-Temporary Impairments	(10)	(2)	(15)	(4)
Interest Expense	(33)	(29)	(64)	(61)
INCOME BEFORE INCOME TAXES	238	76	807	351
Income Tax Expense	(72)	(22)	(306)	(133)
Net Income	$ 166	$ 54	$ 501	$ 218