ASSET RETIREMENT OBLIGATIONS (TABLE)

12 Months Ended

Dec. 31, 2013

Notes To Consolidated Financial Statements [Abstract]

Schedule of Change in Asset Retirement Obligation [Table Text Block]

NU			As of December 31,
(Millions of Dollars)			2013		2012
Balance as of Beginning of Year			$	412.2	$	56.2
Liability Assumed Upon Consolidation of CYAPC and YAEC				-		284.2
Liability Assumed Upon Merger With NSTAR				-		35.9
Liabilities Incurred During the Year				0.1		1.5
Liabilities Settled During the Year				(13.8)		(7.2)
Accretion				23.8		20.2
Revisions in Estimated Cash Flows				2.6		21.4
Balance as of End of Year			$	424.9	$	412.2
	As of December 31,
	2013								2012
			NSTAR								NSTAR
(Millions of Dollars)	CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
Balance as of Beginning of Year	$	33.6	$	31.4	$	18.4	$	4.3	$	32.2	$	27.5	$	17.0	$	4.0
Liabilities Incurred During the Year		-		-		-		-		-		-		0.3		-
Liabilities Settled During the Year		(0.7)		(0.1)		-		-		(0.9)		(1.0)		-		-
Accretion		2.2		1.5		1.2		0.3		2.0		1.5		1.1		0.3
Revisions in Estimated Cash Flows		(0.1)		-		(0.1)		(0.1)		0.3		3.4		-		-
Balance as of End of Year	$	35.0	$	32.8	$	19.5	$	4.5	$	33.6	$	31.4	$	18.4	$	4.3