PENSION BENEFITS AND POSTRETIREMENT BENEFITS OTHER THAN PENSIONS (Tables)

9 Months Ended

Sep. 30, 2011

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Net Benefit Costs [Table Text Block]

		For the Three Months Ended September 30, 2011
		Pension								PBOP
(Millions of Dollars)		NU		CL&P		PSNH		WMECO		NU		CL&P		PSNH		WMECO
Service Cost		$	13.8	$	4.9	$	2.6	$	1.0	$	2.3	$	0.7	$	0.5	$	0.2
Interest Cost			38.3		13.0		6.1		2.7		6.4		2.5		1.2		0.5
Expected Return on Plan Assets			(42.7)		(19.1)		(5.0)		(4.4)		(5.4)		(2.2)		(1.1)		(0.5)
Actuarial Loss			21.1		8.2		2.6		1.7		4.8		1.9		0.8		0.3
Prior Service Cost/(Credit)			2.4		1.1		0.5		0.2		(0.1)		-		-		-
Net Transition Obligation Cost			-		-		-		-		2.9		1.5		0.6		0.3
Total - Net Periodic Expense		$	32.9	$	8.1	$	6.8	$	1.2	$	10.9	$	4.4	$	2.0	$	0.8
Related Intercompany
	Allocations	$	N/A	$	8.5	$	1.9	$	1.6	$	N/A	$	2.0	$	0.5	$	0.4

		For the Three Months Ended September 30, 2010
		Pension								PBOP
(Millions of Dollars)		NU		CL&P		PSNH		WMECO		NU		CL&P		PSNH		WMECO
Service Cost		$	12.8	$	4.4	$	2.5	$	0.9	$	2.1	$	0.7	$	0.4	$	0.2
Interest Cost			38.2		13.2		6.2		2.7		6.7		2.6		1.2		0.6
Expected Return on Plan Assets			(45.7)		(21.5)		(3.7)		(4.8)		(5.4)		(2.2)		(1.0)		(0.5)
Actuarial Loss			13.4		5.1		1.7		1.0		2.9		1.6		0.7		0.2
Prior Service Cost/(Credit)			2.4		1.0		0.4		0.2		(0.1)		-		-		-
Net Transition Obligation Cost			-		-		-		-		4.2		1.5		0.6		0.3
Total - Net Periodic Expense		$	21.1	$	2.2	$	7.1	$	0.0	$	10.4	$	4.2	$	1.9	$	0.8
Related Intercompany
	Allocations	$	N/A	$	6.3	$	1.4	$	1.1	$	N/A	$	2.0	$	0.5	$	0.3

		For the Nine Months Ended September 30, 2011
		Pension								PBOP
(Millions of Dollars)		NU		CL&P		PSNH		WMECO		NU		CL&P		PSNH		WMECO
Service Cost		$	27.5	$	14.6	$	7.9	$	3.0	$	6.8	$	2.2	$	1.4	$	0.4
Interest Cost			76.5		39.1		18.4		8.1		19.3		7.5		3.6		1.6
Expected Return on Plan Assets			(85.8)		(57.4)		(15.0)		(13.2)		(16.2)		(6.5)		(3.3)		(1.5)
Actuarial Loss			42.1		24.8		7.8		5.1		14.3		5.4		2.4		0.9
Prior Service Cost/(Credit)			4.8		3.1		1.5		0.6		(0.2)		-		-
Net Transition Obligation Cost			-		-		-		-		8.7		4.6		1.9		1.0
Total - Net Periodic Expense		$	65.1	$	24.2	$	20.6	$	3.6	$	32.7	$	13.2	$	6.0	$	2.4
Related Intercompany
	Allocations	$	N/A	$	25.0	$	5.7	$	4.6	$	N/A	$	6.2	$	1.5	$	1.1

		For the Nine Months Ended September 30, 2010
		Pension								PBOP
(Millions of Dollars)		NU		CL&P		PSNH		WMECO		NU		CL&P		PSNH		WMECO
Service Cost		$	38.2	$	13.2	$	7.4	$	2.5	$	6.3	$	2.0	$	1.4	$	0.4
Interest Cost			114.5		39.2		18.3		8.0		20.1		7.8		3.7		1.8
Expected Return on Plan Assets			(137.0)		(64.4)		(10.8)		(14.6)		(16.2)		(6.5)		(3.2)		(1.6)
Actuarial Loss			40.3		15.7		5.2		3.3		8.7		4.8		2.1		0.7
Prior Service Cost/(Credit)			7.3		3.0		1.1		0.7		(0.2)		-		-		-
Net Transition Obligation Cost			-		-		-		-		12.5		4.6		1.8		1.0
Total - Net Periodic
	Expense/(Income)	$	63.3	$	6.7	$	21.2	$	(0.1)	$	31.2	$	12.7	$	5.8	$	2.3
Related Intercompany
	Allocations	$	N/A	$	18.9	$	4.4	$	3.4	$	N/A	$	6.0	$	1.5	$	1.0

	For the Three Months Ended				For the Nine Months Ended
(Millions of Dollars)	September 30, 2011		September 30, 2010		September 30, 2011		September 30, 2010
NU	$	7.8	$	4.4	$	23.5	$	13.2
CL&P		4.5		1.7		13.4		5.2
PSNH		2.1		2.0		5.9		6.1
WMECO		0.7		0.2		2.1		0.5