SEGMENT INFORMATION

9 Months Ended

Sep. 30, 2013

Notes To Consolidated Financial Statements [Abstract]

Segment Reporting Disclosure [Text Block]

15.SEGMENT INFORMATION

Presentation: NU is organized between the Electric Distribution, Electric Transmission and Natural Gas Distribution segments and Other based on a combination of factors, including the characteristics of each segments' products and services, the sources of operating revenues and expenses and the regulatory environment in which each segment operates. These segments represented substantially all of NU's total consolidated revenues for the three and ninemonths endedSeptember 30, 2013 and2012. Revenues from the sale of electricity and natural gas primarily are derived from residential, commercial and industrial customers and are not dependent on any single customer. The Electric Distribution segment includes the generation activities of PSNH and WMECO.

Other operations in the tables below primarily consists of 1) the equity in earnings of NU parent from its subsidiaries and intercompany interest income, both of which are eliminated in consolidation, and interest income and expense related to the cash and debt of NU parent and NSTAR LLC, respectively, 2) the revenues and expenses of NU's service companies, most of which are eliminated in consolidation, 3) the operations of CYAPC and YAEC, and 4) the results of other subsidiaries, which are comprised of NU Enterprises, NSTAR Communications, Inc., RRR (a real estate subsidiary), the non-energy-related subsidiaries of Yankee and the remaining operations of HWP.

Cash flows used for investments in plant included in the segment information below are cash capital expenditures that do not include amounts incurred but not paid, cost of removal, AFUDC related to equity funds, and the capitalized portions of pension expense.

NU's reportable segments are the combined Electric Distribution, Electric Transmission and Natural Gas Distribution segments, based upon the level at which NU's chief operating decision maker assesses performance and makes decisions about the allocation of company resources. Each of NU's subsidiaries, including CL&P, NSTAR Electric, PSNH and WMECO, has one reportable segment. Therefore, separate Transmission and Distribution information is not disclosed for CL&P, NSTAR Electric, PSNH or WMECO. NU's operating segments and reporting units are consistent with its reportable business segments.

NSTAR amounts areincluded in NU consolidated as of April 10, 2012.

NU's segment information for the three and ninemonths ended September 30, 2013 and 2012 is as follows:

		For the Three Months Ended September 30, 2013
		Electric		Natural Gas
(Millions of Dollars)		Distribution		Distribution		Transmission		Other		Eliminations		Total
Operating Revenues		$	1,508.6	$	97.1	$	234.1	$	212.5	$	(159.7)	$	1,892.6
Depreciation and Amortization			(159.6)		(16.4)		(34.5)		(11.2)		2.6		(219.1)
Other Operating Expenses			(1,064.1)		(89.4)		(73.4)		(206.8)		159.5		(1,274.2)
Operating Income/(Loss)			284.9		(8.7)		126.2		(5.5)		2.4		399.3
Net Income/(Loss) Attributable
	to Controlling Interest		156.9		(10.4)		58.6		313.1		(308.7)		209.5
		For the Nine Months Ended September 30, 2013
		Electric		Natural Gas
(Millions of Dollars)		Distribution		Distribution		Transmission		Other		Eliminations		Total
Operating Revenues		$	4,104.4	$	613.0	$	721.5	$	650.4	$	(565.8)	$	5,523.5
Depreciation and Amortization			(488.7)		(50.5)		(100.9)		(52.0)		7.2		(684.9)
Other Operating Expenses			(2,952.4)		(483.6)		(199.1)		(599.0)		564.3		(3,669.8)
Operating Income/(Loss)			663.3		78.9		421.5		(0.6)		5.7		1,168.8
Net Income Attributable
	to Controlling Interest		347.5		34.1		215.4		868.7		(857.1)		608.6
Cash Flows Used for
	Investments in Plant		501.9		91.2		458.2		22.5		-		1,073.8

		For the Three Months Ended September 30, 2012
		Electric		Natural Gas
(Millions of Dollars)		Distribution		Distribution		Transmission		Other		Eliminations		Total
Operating Revenues		$	1,483.7	$	91.3	$	235.6	$	219.5	$	(168.6)	$	1,861.5
Depreciation and Amortization			(172.6)		(12.6)		(29.7)		(17.5)		1.1		(231.3)
Other Operating Expenses			(1,027.4)		(77.2)		(66.3)		(216.8)		170.4		(1,217.3)
Operating Income/(Loss)			283.7		1.5		139.6		(14.8)		2.9		412.9
Net Income/(Loss) Attributable
	to Controlling Interest		150.5		(4.4)		71.1		313.9		(323.5)		207.6
		For the Nine Months Ended September 30, 2012
		Electric		Natural Gas
(Millions of Dollars)		Distribution		Distribution		Transmission		Other		Eliminations		Total
Operating Revenues		$	3,499.7	$	361.5	$	627.2	$	582.9	$	(481.5)	$	4,589.8
Depreciation and Amortization			(398.1)		(32.7)		(79.5)		(39.1)		2.6		(546.8)
Other Operating Expenses			(2,654.4)		(292.9)		(179.5)		(614.5)		485.1		(3,256.2)
Operating Income/(Loss)			447.2		35.9		368.2		(70.7)		6.2		786.8
Net Income Attributable
	to Controlling Interest		212.1		8.3		181.1		511.6		(561.9)		351.2
Cash Flows Used for
	Investments in Plant		461.3		105.9		476.0		38.6		-		1,081.8
The following table summarizes NU's segmented total assets:
		Electric		Natural Gas
(Millions of Dollars)		Distribution		Distribution		Transmission		Other		Eliminations		Total
As of September 30, 2013			17,912.9		2,656.8		6,566.1		19,446.9		(18,138.4)		28,444.3
As of December 31, 2012			18,047.3		2,717.4		6,187.7		18,832.6		(17,482.2)		28,302.8