Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net Income	$ 471	$ 586
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	16	14
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	2	(9)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	8	8
Other Comprehensive Income (Loss), net of tax	26	13
COMPREHENSIVE INCOME	497	599
PSE And G [Member]
Net Income	262	242
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	0	0
COMPREHENSIVE INCOME	262	242
Power [Member]
Net Income	192	335
Other Comprehensive Income (Loss), net of tax
Unrealized Gains (Losses) on Available-for-Sale Securities, net of tax (expense) benefit	16	14
Unrealized Gains (Losses) on Cash Flow Hedges, net of tax (expense) benefit	0	(9)
Pension/Other Postretirement Benefit (OPEB) adjustment, net of tax (expense) benefit	7	7
Other Comprehensive Income (Loss), net of tax	23	12
COMPREHENSIVE INCOME	$ 215	$ 347