Environmental Matters (Tables)

9 Months Ended

Sep. 30, 2014

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Environmental Loss Contingencies By Site Text Block

	As of September 30, 2014				As of December 31, 2013
			Reserve				Reserve
	Number of Sites		(in millions)		Number of Sites		(in millions)
NU		65	$	34.7		68	$	35.4
CL&P		16		4.0		18		3.4
NSTAR Electric		13		1.1		12		1.2
PSNH		13		5.3		15		5.4
WMECO		4		0.5		5		0.4