Condensed Consolidated Statements Of Operations (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Operating Revenues	$ 2,310	$ 2,098	$ 5,096	$ 4,973
Operating Expenses [Abstract]
Energy Costs	755	761	1,910	1,940
Operation and Maintenance	646	629	1,356	1,257
Depreciation and Amortization	283	255	573	511
Taxes Other Than Income Taxes	14	20	35	49
Total Operating Expenses	1,698	1,665	3,874	3,757
OPERATING INCOME	612	433	1,222	1,216
Income from Equity Method Investments	3	2	5	2
Other Income	52	51	113	95
Other Deductions	(13)	(19)	(42)	(35)
Other-Than-Temporary Impairments	(2)	(7)	(4)	(12)
Interest Expense	(101)	(103)	(203)	(204)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	551	357	1,091	1,062
Income Tax Expense	(218)	(146)	(438)	(358)
Net Income	333	211	653	704
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (THOUSANDS):
BASIC	505,900	505,903	505,921	505,956
DILUTED	507,381	506,969	507,301	506,999
EARNINGS PER SHARE:
INCOME FROM CONTINUING OPERATIONS, BASIC	$ 0.66	$ 0.42	$ 1.29	$ 1.39
NET INCOME	$ 0.66	$ 0.42	$ 1.29	$ 1.39
INCOME FROM CONTINUING OPERATIONS, DILUTED	$ 0.66	$ 0.42	$ 1.29	$ 1.39
NET INCOME	$ 0.66	$ 0.42	$ 1.29	$ 1.39
DIVIDENDS PAID PER SHARE OF COMMON STOCK	$ 0.36	$ 0.355	$ 0.7200	$ 0.7100
Power [Member]
Operating Revenues	1,190	985	2,637	2,546
Operating Expenses [Abstract]
Energy Costs	496	447	1,356	1,269
Operation and Maintenance	280	284	562	525
Depreciation and Amortization	65	58	129	115
Total Operating Expenses	841	789	2,047	1,909
OPERATING INCOME	349	196	590	637
Other Income	35	37	82	67
Other Deductions	(10)	(17)	(38)	(32)
Other-Than-Temporary Impairments	(2)	(7)	(4)	(12)
Interest Expense	(29)	(32)	(59)	(62)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	343	177	571	598
Income Tax Expense	(139)	(73)	(230)	(241)
Net Income	204	104	341	357
PSE And G [Member]
Operating Revenues	1,423	1,407	3,418	3,346
Operating Expenses [Abstract]
Energy Costs	580	622	1,547	1,624
Operation and Maintenance	369	350	796	726
Depreciation and Amortization	207	188	422	378
Taxes Other Than Income Taxes	14	20	35	49
Total Operating Expenses	1,170	1,180	2,800	2,777
OPERATING INCOME	253	227	618	569
Other Income	15	12	28	23
Other Deductions	(1)	(1)	(2)	(2)
Interest Expense	(75)	(74)	(148)	(147)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	192	164	496	443
Income Tax Expense	(71)	(63)	(196)	(145)
Net Income	$ 121	$ 101	$ 300	$ 298