FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2012

Notes To Consolidated Financial Statements [Abstract]

Fair Value By Balance Sheet Grouping Text Block

		As of March 31, 2012
		NU				CL&P				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	$	106.9	$	116.2	$	106.9	$	-	$	-	$	-	$	-
Long-Term Debt			5,250.7		5,744.0		2,587.8		2,946.5		999.5		1,056.3		501.1		527.0
Rate Reduction Bonds			94.4		97.6		-		-		71.9		74.3		22.5		23.3
		As of December 31, 2011
		NU				CL&P				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	$	116.2	$	105.1	$	-	$	-	$	-	$	-
Long-Term Debt			4,950.7		5,517.0		2,587.8		2,987.1		999.5		1,075.2		501.1		539.8
Rate Reduction Bonds			112.3		116.8		-		-		85.4		88.8		26.9		28.1