Condensed Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Operating Revenues	$ 2,688	$ 2,641	$ 8,137	$ 8,113
Operating Expenses [Abstract]
Energy Costs	815	863	2,577	3,008
Operation and Maintenance	746	714	2,170	2,370
Depreciation and Amortization	313	318	960	919
Total Operating Expenses	1,874	1,895	5,707	6,297
OPERATING INCOME	814	746	2,430	1,816
Income from Equity Method Investments	3	3	10	10
Other Income	47	75	171	185
Other Deductions	(14)	(9)	(36)	(31)
Other-Than-Temporary Impairments	(30)	(10)	(45)	(14)
Interest Expense	(96)	(100)	(291)	(291)
INCOME BEFORE INCOME TAXES	724	705	2,239	1,675
Income Tax Expense	(285)	(261)	(869)	(633)
Net Income	$ 439	$ 444	$ 1,370	$ 1,042
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	505	506	505	506
DILUTED (in shares)	508	507	508	507
EARNINGS PER SHARE:
BASIC (in dollars per share)	$ 0.87	$ 0.88	$ 2.71	$ 2.06
DILUTED (in dollars per share)	0.87	0.87	2.70	2.05
DIVIDENDS PAID PER SHARE OF COMMON STOCK (in dollars per share)	$ 0.39	$ 0.37	$ 1.17	$ 1.11
PSE And G [Member]
Operating Revenues	$ 1,766	$ 1,655	$ 5,234	$ 5,235
Operating Expenses [Abstract]
Energy Costs	740	668	2,176	2,278
Operation and Maintenance	391	366	1,171	1,190
Depreciation and Amortization	231	238	712	682
Total Operating Expenses	1,362	1,272	4,059	4,150
OPERATING INCOME	404	383	1,175	1,085
Other Income	22	16	59	44
Other Deductions	0	(2)	(2)	(3)
Interest Expense	(67)	(71)	(203)	(206)
INCOME BEFORE INCOME TAXES	359	326	1,029	920
Income Tax Expense	(137)	(126)	(398)	(355)
Net Income	222	200	631	565
Power [Member]
Operating Revenues	1,096	1,138	3,846	3,824
Operating Expenses [Abstract]
Energy Costs	367	472	1,669	2,036
Operation and Maintenance	263	242	748	871
Depreciation and Amortization	75	71	226	215
Total Operating Expenses	705	785	2,643	3,122
OPERATING INCOME	391	353	1,203	702
Income from Equity Method Investments	3	4	11	11
Other Income	25	56	109	135
Other Deductions	(14)	(6)	(32)	(25)
Other-Than-Temporary Impairments	(30)	(10)	(45)	(14)
Interest Expense	(30)	(31)	(94)	(92)
INCOME BEFORE INCOME TAXES	345	366	1,152	717
Income Tax Expense	(139)	(144)	(445)	(277)
Net Income	$ 206	$ 222	$ 707	$ 440