SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Segment Reporting Disclosure [Text Block]

15.       SEGMENT INFORMATION

Presentation: NU is organized between the Regulated companies' segments and Other operations based on a combination of factors, including the characteristics of each business' products and services, the sources of operating revenues and expenses and the regulatory environment in which each segment operates. 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 and PBOP expense or income.

The Regulated companies' segments include the electric distribution segment, the natural gas distribution segment and the electric transmission segment. The electric distribution segment includes the generation activities of PSNH and WMECO. The Regulated companies' segments represented substantially all of NU's total consolidated revenues for the three and six month periods ended June 30, 2012 and 2011.

Other operations in the tables below primarily consists of 1) the results of NU parent and NSTAR LLC, which includes other income related to the equity in earnings of NU parent and NSTAR LLC's subsidiaries, respectively, and interest income from the NU Money Pool, 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.

Regulated companies' 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.

As discussed in Note 1A, "Summary of Significant Accounting Policies – Basis of Presentation," certain reclassifications of prior period data were made in the accompanying unaudited condensed consolidated statements of income for NU. Accordingly, the corresponding items of segment information have been recast for all prior periods for comparative purposes.

NU's segment information for the three and six months ended June 30, 2012 and 2011, with the distribution segment segregated between electric and natural gas, is as follows:

		For the Three Months Ended June 30, 2012
		Regulated Companies
		Distribution
(Millions of Dollars)		Electric		Natural Gas		Transmission		Other		Eliminations		Total
Operating Revenues		$	1,229.9	$	133.5	$	228.7	$	230.2	$	(193.6)	$	1,628.7
Depreciation and Amortization			(153.3)		(12.4)		(28.6)		(17.7)		1.2		(210.8)
Other Operating Expenses			(1,004.8)		(115.8)		(65.5)		(263.0)		190.7		(1,258.4)
Operating Income/(Loss)			71.8		5.3		134.6		(50.5)		(1.7)		159.5
Interest Expense			(44.8)		(8.8)		(26.2)		(11.1)		1.9		(89.0)
Interest Income			1.0		-		0.1		1.4		(1.4)		1.1
Other Income/(Loss), Net			(0.2)		0.1		0.7		117.9		(117.8)		0.7
Income Tax (Expense)/Benefit			(6.9)		1.3		(44.8)		25.0		(0.7)		(26.1)
Net Income/(Loss)			20.9		(2.1)		64.4		82.7		(119.7)		46.2
Net Income Attributable
	to Noncontrolling Interests		(1.2)		-		(0.7)		-		-		(1.9)
Net Income/(Loss) Attributable
	to Controlling Interest	$	19.7	$	(2.1)	$	63.7	$	82.7	$	(119.7)	$	44.3

		For the Six Months Ended June 30, 2012
		Regulated Companies
		Distribution
(Millions of Dollars)		Electric		Natural Gas		Transmission		Other		Eliminations		Total
Operating Revenues		$	2,016.0	$	272.5	$	391.6	$	363.4	$	(315.2)	$	2,728.3
Depreciation and Amortization			(225.4)		(20.1)		(49.8)		(21.6)		1.5		(315.4)
Other Operating Expenses			(1,627.0)		(218.0)		(113.2)		(397.8)		317.0		(2,039.0)
Operating Income/(Loss)			163.6		34.4		228.6		(56.0)		3.3		373.9
Interest Expense			(77.9)		(14.3)		(45.8)		(20.4)		2.9		(155.5)
Interest Income			2.1		-		0.3		2.6		(2.7)		2.3
Other Income, Net			4.2		0.1		3.9		240.5		(240.4)		8.3
Income Tax (Expense)/Benefit			(28.3)		(7.6)		(75.6)		31.0		(1.5)		(82.0)
Net Income			63.7		12.6		111.4		197.7		(238.4)		147.0
Net Income Attributable
	to Noncontrolling Interests		(2.0)		-		(1.4)		-		-		(3.4)
Net Income Attributable
	to Controlling Interest	$	61.7	$	12.6	$	110.0	$	197.7	$	(238.4)	$	143.6
Cash Flows for Total
	Investments in Plant	$	305.7	$	59.7	$	297.2	$	27.8	$	-	$	690.4

		For the Three Months Ended June 30, 2011
		Regulated Companies
		Distribution
(Millions of Dollars)		Electric		Natural Gas		Transmission		Other		Eliminations		Total
Operating Revenues		$	794.4	$	78.4	$	152.1	$	130.8	$	(108.2)	$	1,047.5
Depreciation and Amortization			(76.5)		(6.3)		(21.4)		(3.9)		0.4		(107.7)
Other Operating Expenses			(633.2)		(65.7)		(44.2)		(126.8)		108.2		(761.7)
Operating Income			84.7		6.4		86.5		0.1		0.4		178.1
Interest Expense			(31.0)		(5.2)		(19.1)		(8.5)		1.6		(62.2)
Interest Income			0.6		-		0.1		1.5		(1.5)		0.7
Other Income, Net			2.8		0.4		3.3		85.4		(85.3)		6.6
Income Tax (Expense)/Benefit			(17.2)		(0.4)		(28.0)		2.0		(0.9)		(44.5)
Net Income			39.9		1.2		42.8		80.5		(85.7)		78.7
Net Income Attributable
	to Noncontrolling Interests		(0.8)		-		(0.6)		-		-		(1.4)
Net Income Attributable
	to Controlling Interest	$	39.1	$	1.2	$	42.2	$	80.5	$	(85.7)	$	77.3

		For the Six Months Ended June 30, 2011
		Regulated Companies
		Distribution
(Millions of Dollars)		Electric		Natural Gas		Transmission		Other		Eliminations		Total
Operating Revenues		$	1,686.0	$	258.6	$	310.3	$	261.2	$	(233.4)	$	2,282.7
Depreciation and Amortization			(167.5)		(13.1)		(44.8)		(8.3)		1.3		(232.4)
Other Operating Expenses			(1,326.3)		(199.2)		(92.5)		(261.7)		234.9		(1,644.8)
Operating Income/(Loss)			192.2		46.3		173.0		(8.8)		2.8		405.5
Interest Expense			(60.6)		(10.4)		(35.4)		(17.1)		2.7		(120.8)
Interest Income			1.9		-		0.3		2.7		(2.8)		2.1
Other Income, Net			6.6		0.8		8.1		234.9		(234.8)		15.6
Income Tax (Expense)/Benefit			(43.6)		(13.0)		(57.9)		7.8		(1.4)		(108.1)
Net Income			96.5		23.7		88.1		219.5		(233.5)		194.3
Net Income Attributable
	to Noncontrolling Interests		(1.7)		-		(1.2)		-		-		(2.9)
Net Income Attributable
	to Controlling Interest	$	94.8	$	23.7	$	86.9	$	219.5	$	(233.5)	$	191.4
Cash Flows Used for
	Investments in Plant	$	251.1	$	45.4	$	146.0	$	26.0	$	-	$	468.5

The information related to the distribution and transmission segments for CL&P, PSNH and WMECO for the three and six months
ended June 30, 2012 and 2011 is as follows:
	For the Three Months Ended
	June 30, 2012						June 30, 2011
(Millions of Dollars)	Distribution		Transmission		Total		Distribution		Transmission		Total
CL&P
Operating Revenues	$	442.2	$	119.9	$	562.1	$	489.9	$	118.1	$	608.0
Net Income/(Loss)		(27.2)		34.1		6.9		19.8		32.8		52.6
PSNH
Operating Revenues		229.4		25.7		255.1		219.1		21.1		240.2
Net Income		14.7		6.5		21.2		16.0		5.7		21.7
WMECO
Operating Revenues		81.6		25.2		106.8		85.4		13.0		98.4
Net Income		1.4		9.7		11.1		4.0		4.2		8.2

	For the Six Months Ended
	June 30, 2012						June 30, 2011
(Millions of Dollars)	Distribution		Transmission		Total		Distribution		Transmission		Total
CL&P
Operating Revenues	$	916.9	$	237.2	$	1,154.1	$	1,039.8	$	241.9	$	1,281.7
Net Income/(Loss)		(5.5)		66.4		60.9		49.2		67.8		117.0
PSNH
Operating Revenues		448.9		49.2		498.1		467.0		42.7		509.7
Net Income		29.9		12.6		42.5		37.5		11.6		49.1
WMECO
Operating Revenues		173.6		47.3		220.9		179.3		25.8		205.1
Net Income		7.5		17.8		25.3		9.7		8.4		18.1

The following tables summarize NU, CL&P, PSNH and WMECO's segmented total assets:

	Regulated Companies
NU	Distribution
(Millions of Dollars)	Electric		Natural Gas		Transmission		Other		Eliminations		Total
As of June 30, 2012	$	15,161.3	$	2,432.7	$	5,327.7	$	20,614.1	$	(16,029.5)	$	27,506.3
As of December 31, 2011		9,653.1		1,511.3		3,792.9		6,618.0		(5,928.2)		15,647.1
	As of June 30, 2012						As of December 31, 2011
(Millions of Dollars)	Distribution		Transmission		Total		Distribution		Transmission		Total
CL&P	$	6,137.5	$	2,697.9	$	8,835.4	$	6,161.0	$	2,630.4	$	8,791.4
PSNH		2,451.5		585.3		3,036.8		2,551.3		565.2		3,116.5
WMECO		943.3		690.2		1,633.5		942.6		560.3		1,502.9