MERGER OF NU AND NSTAR (Tables)

6 Months Ended

Jun. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Business Acquisitions By Acquisition Equity Interest Issued Or Issuable [Table Text Block]

NSTAR common shares outstanding as of April 9, 2012 (in thousands)*		103,696
Exchange ratio		1.312
NU common shares issued for NSTAR common shares outstanding (in thousands)		136,049
Closing price of NU common shares on April 9, 2012	$	36.79
Value of common shares issued (in millions)	$	5,005
Fair value of NU replacement stock-based compensation awards related to pre-merger service (in millions)		33
Total purchase price (in millions)	$	5,038

Schedule of Purchase Price Allocation [Table Text Block]

(Millions of Dollars)
Current Assets	$	754
Property Plant and Equipment, Net		5,155
Goodwill		3,231
Other Long-Term Assets, excluding Goodwill		2,115
Current Liabilities		(1,332)
Long-Term Liabilities		(2,723)
Long-Term Debt and Other Long-Term Obligations		(2,123)
Preferred Stock of Subsidiary		(39)
Total Purchase Price	$	5,038

Business Acquisition, Pro Forma Information [Table Text Block]

(Pro forma amounts in millions, except per share amounts)	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2012		2011		2012		2011
Operating Revenues	$	1,629	$	1,691	$	3,459	$	3,754
Net Income Attributable to Controlling Interest		133		142		243		328
Basic EPS		0.42		0.45		0.77		1.05
Diluted EPS		0.42		0.45		0.77		1.04

Business Acquisition, Integration, Restructuring and Other Related Costs [Text Block]

		For the Three Months Ended June 30,				For the Six Months Ended June 30,
(Millions of Dollars)		2012		2011		2012		2011
Transaction and Other Costs		$	29	$	2	$	31	$	16
Settlement Agreement Impacts			60		0		60		0
Total After-Tax Non-Recurring Costs Excluded
	from Net Income	$	89	$	2	$	91	$	16

	For The Three and Six Months Ended June 30, 2012
(Millions of Dollars)	NU		CL&P		NSTAR Electric		WMECO
Customer Rate Credits	$	46	$	25	$	15	$	3
Storm Costs Deferral Reduction		40		40		-		-
Establishment of Energy Efficiency Fund		15		-		-		-
Total	$	101	$	65	$	15	$	3