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Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Available-for-Sale Securities, tax	$ (27)	$ (38)
Change in Fair Value of Derivative Instruments, tax	0	(14)
Reclassification Adjustments for Net Amounts included in Net Income, tax	2	15
Pension/OPEB adjustment, tax	(7)	(5)
Power [Member]
Available-for-Sale Securities, tax	(27)	(39)
Change in Fair Value of Derivative Instruments, tax	0	(14)
Reclassification Adjustments for Net Amounts included in Net Income, tax	2	15
Pension/OPEB adjustment, tax	(5)	(5)
PSE And G [Member]
Available-for-Sale Securities, tax	$ 0	$ 1

Tax effect of the income statement impact of the reclassification adjustment of accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges realized in net income. Also includes reclassification adjustments of an entity's share of an equity investee's deferred hedging gain (loss) realized in net income.

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- Definition

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

+ References+ Details