Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Income	$ 327	$ 439	$ 985	$ 1,370
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	24	(31)	50	(32)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	1	0	2	(9)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	9	9	25	25
Other Comprehensive Income (Loss), net of tax	34	(22)	77	(16)
COMPREHENSIVE INCOME	361	417	1,062	1,354
PSE And G [Member]
Net Income	255	222	696	631
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	0	0	1	(1)
COMPREHENSIVE INCOME	255	222	697	630
Power [Member]
Net Income	139	206	320	707
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	22	(29)	47	(29)
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	0	0	0	(9)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	7	7	21	21
Other Comprehensive Income (Loss), net of tax	29	(22)	68	(17)
COMPREHENSIVE INCOME	$ 168	$ 184	$ 388	$ 690