Condensed Consolidated Statements Of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Operating Revenues	$ 3,135	$ 3,223
Operating Expenses [Abstract]
Energy Costs	1,094	1,356
Operation and Maintenance	663	856
Depreciation and Amortization	330	306
Total Operating Expenses	2,087	2,518
OPERATING INCOME	1,048	705
Income from Equity Method Investments	3	4
Other Income	48	48
Other Deductions	(12)	(12)
Other-Than-Temporary Impairments	(5)	(2)
Interest Expense	(98)	(97)
INCOME BEFORE INCOME TAXES	984	646
Income Tax Expense	(398)	(260)
Net Income	586	386
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	506	506
DILUTED (in shares)	508	508
EARNINGS PER SHARE:
BASIC (in dollars per share)	$ 1.16	$ 0.76
DILUTED (in dollars per share)	$ 1.15	$ 0.76
DIVIDENDS PAID PER SHARE OF COMMON STOCK	$ 0.39	$ 0.37
PSE And G [Member]
Operating Revenues	2,002	2,145
Operating Expenses [Abstract]
Energy Costs	892	1,045
Operation and Maintenance	412	462
Depreciation and Amortization	247	227
Total Operating Expenses	1,551	1,734
OPERATING INCOME	451	411
Other Income	18	14
Other Deductions	(1)	0
Interest Expense	(69)	(68)
INCOME BEFORE INCOME TAXES	399	357
Income Tax Expense	(157)	(143)
Net Income	242	214
Power [Member]
Operating Revenues	1,725	1,700
Operating Expenses [Abstract]
Energy Costs	893	1,044
Operation and Maintenance	172	302
Depreciation and Amortization	76	72
Total Operating Expenses	1,141	1,418
OPERATING INCOME	584	282
Income from Equity Method Investments	3	4
Other Income	29	33
Other Deductions	(11)	(10)
Other-Than-Temporary Impairments	(5)	(2)
Interest Expense	(31)	(32)
INCOME BEFORE INCOME TAXES	569	275
Income Tax Expense	(234)	(111)
Net Income	$ 335	$ 164