Segment Information (Tables)

3 Months Ended

Mar. 31, 2014

Segment Reporting [Abstract]

Segment Financial Information

Segment Financial Information

Three Months Ended	Regulated Distribution		Regulated Transmission		Competitive Energy Services			Other/Corporate			Reconciling Adjustments			Consolidated
	(In millions)
March 31, 2014
External revenues	$	2,552	$	187	$	1,522		$	(35	)	$	(37	)	$	4,189
Internal revenues	—		—		249			—			(249		)	—
Total revenues	2,552		187		1,771			(35		)	(286		)	4,189
Depreciation, amortization and deferrals	131		33		91			11			—			266
Investment income	15		—		14			3			(10		)	22
Interest expense	151		25		46			43			—			265
Income taxes (benefits)	125		30		(73		)	(26		)	(8		)	48
Income (loss) from continuing operations	214		51		(124		)	(32		)	13			122
Discontinued operations, net of tax	—		—		86			—			—			86
Net income (loss)	214		51		(38		)	(32		)	13			208
Total assets	27,742		5,584		17,445			457			—			51,228
Total goodwill	5,092		526		800			—			—			6,418
Property additions	269		217		318			17			—			821
March 31, 2013
External revenues	$	2,212	$	176	$	1,414		$	(27	)	$	(52	)	$	3,723
Internal revenues	—		—		216			—			(216		)	—
Total revenues	2,212		176		1,630			(27		)	(268		)	3,723
Depreciation, amortization and deferrals	202		29		110			11			—			352
Investment income	18		—		10			1			(11		)	18
Interest expense	135		23		73			27			—			258
Income taxes (benefits)	126		31		(24		)	(19		)	—			114
Income (loss) from continuing operations	210		51		(42		)	(30		)	3			192
Discontinued operations, net of tax	—		—		4			—			—			4
Net income (loss)	210		51		(38		)	(30		)	3			196
Total assets	26,943		4,722		18,328			431			—			50,424
Total goodwill	5,025		526		896			—			—			6,447
Property additions	436		89		283			18			—			826