Condensed Consolidated Statements Of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net Income	$ 212	$ 333	$ 598	$ 653
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	11	(16)	13	11
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	1	0	3	(4)
Pension/OPEB adjustment, net of tax (expense) benefit	2	9	6	19
Other Comprehensive Income (Loss), net of tax	14	(7)	22	26
COMPREHENSIVE INCOME	226	326	620	679
Power [Member]
Net Income	54	210	218	351
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	9	(14)	11	13
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	2	(1)	3	(5)
Pension/OPEB adjustment, net of tax (expense) benefit	2	8	5	17
Other Comprehensive Income (Loss), net of tax	13	(7)	19	25
COMPREHENSIVE INCOME	67	203	237	376
PSE And G [Member]
Net Income	151	121	365	300
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	0	(1)	0	(1)
COMPREHENSIVE INCOME	$ 151	$ 120	$ 365	$ 299