FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Fair Value By Balance Sheet Grouping Text Block

		As of September 30, 2012				As of December 31, 2011
		NU				NU
		Carrying		Fair		Carrying		Fair
(Millions of Dollars)		Amount		Value		Amount		Value
Preferred Stock Not
	Subject to Mandatory Redemption	$	155.6	$	154.0	$	116.2	$	105.1
Long-Term Debt			7,612.3		8,378.5		4,950.7		5,517.0
Rate Reduction Bonds			101.3		103.0		112.3		116.8

		As of September 30, 2012
		CL&P				NSTAR Electric				PSNH				WMECO
		Carrying		Fair		Carrying		Fair		Carrying		Fair		Carrying		Fair
(Millions of Dollars)		Amount		Value		Amount		Value		Amount		Value		Amount		Value
Preferred Stock Not
	Subject to Mandatory Redemption	$	116.2	$	112.0	$	43.0	$	42.0	$	-	$	-	$	-	$	-
Long-Term Debt			2,584.2		3,063.0		1,603.6		1,846.4		997.9		1,098.0		499.7		564.3
Rate Reduction Bonds			-		-		43.5		44.3		44.1		44.6		13.8		14.0
		As of December 31, 2011
		CL&P				NSTAR Electric(1)				PSNH				WMECO
		Carrying		Fair		Carrying		Fair		Carrying		Fair		Carrying		Fair
(Millions of Dollars)		Amount		Value		Amount		Value		Amount		Value		Amount		Value
Preferred Stock Not
	Subject to Mandatory Redemption	$	116.2	$	105.1	$	43.0	$	41.2	$	-	$	-	$	-	$	-
Long-Term Debt			2,587.8		2,987.1		1,605.1		1,816.1		999.5		1,075.2		501.1		539.8
Rate Reduction Bonds			-		-		127.9		131.2		85.4		88.8		26.9		28.1