Condensed Consolidated Statements Of Operations (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating Revenues	$ 2,098	$ 2,469	$ 4,973	$ 5,823
OPERATING EXPENSES
Energy Costs	761	1,010	1,940	2,573
Operation and Maintenance	629	575	1,257	1,226
Depreciation and Amortization	255	235	511	476
Taxes Other Than Income Taxes	20	28	49	71
Total Operating Expenses	1,665	1,848	3,757	4,346
OPERATING INCOME	433	621	1,216	1,477
Income from Equity Method Investments	2	4	2	7
Other Income	51	55	95	131
Other Deductions	(19)	(15)	(35)	(28)
Other-Than-Temporary Impairments	(7)	(1)	(12)	(5)
Interest Expense	(103)	(117)	(204)	(244)
INCOME BEFORE INCOME TAXES	357	547	1,062	1,338
Income Tax (Expense) Benefit	(146)	(227)	(358)	(556)
INCOME FROM CONTINUING OPERATIONS	211	320	704	782
Income (Loss) from Discontinued Operations, including Gain on Disposal, net of tax (expense) benefit of $0 and $(36) for the three and six months ended 2011	0	3	0	67
Net Income	211	323	704	849
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (THOUSANDS):
BASIC	505,903	505,988	505,956	505,984
DILUTED	506,969	506,761	506,999	506,945
EARNINGS PER SHARE:
INCOME FROM CONTINUING OPERATIONS,BASIC	$ 0.42	$ 0.63	$ 1.39	$ 1.55
NET INCOME	$ 0.42	$ 0.63	$ 1.39	$ 1.68
INCOME FROM CONTINUING OPERATIONS, DILUTED	$ 0.42	$ 0.63	$ 1.39	$ 1.54
NET INCOME	$ 0.42	$ 0.63	$ 1.39	$ 1.67
DIVIDENDS PAID PER SHARE OF COMMON STOCK	$ 0.3550	$ 0.3425	$ 0.7100	$ 0.6850
Power [Member]
Operating Revenues	985	1,285	2,546	3,252
OPERATING EXPENSES
Energy Costs	447	603	1,269	1,738
Operation and Maintenance	284	271	525	548
Depreciation and Amortization	58	56	115	110
Total Operating Expenses	789	930	1,909	2,396
OPERATING INCOME	196	355	637	856
Other Income	37	49	67	119
Other Deductions	(17)	(14)	(32)	(26)
Other-Than-Temporary Impairments	(7)	(1)	(12)	(3)
Interest Expense	(32)	(41)	(62)	(92)
INCOME BEFORE INCOME TAXES	177	348	598	854
Income Tax (Expense) Benefit	(73)	(143)	(241)	(352)
INCOME FROM CONTINUING OPERATIONS	104	205	357	502
Income (Loss) from Discontinued Operations, including Gain on Disposal, net of tax (expense) benefit of $0 and $(36) for the three and six months ended 2011	0	3	0	67
Net Income	104	208	357	569
PSE And G [Member]
Operating Revenues	1,407	1,571	3,346	3,877
OPERATING EXPENSES
Energy Costs	622	815	1,624	2,181
Operation and Maintenance	350	304	726	672
Depreciation and Amortization	188	172	378	351
Taxes Other Than Income Taxes	20	28	49	71
Total Operating Expenses	1,180	1,319	2,777	3,275
OPERATING INCOME	227	252	569	602
Other Income	12	4	23	9
Other Deductions	(1)	0	(2)	(1)
Other-Than-Temporary Impairments	0	0	0	(1)
Interest Expense	(74)	(78)	(147)	(157)
INCOME BEFORE INCOME TAXES	164	178	443	452
Income Tax (Expense) Benefit	(63)	(73)	(145)	(184)
Net Income	$ 101	$ 105	$ 298	$ 268