REGULATORY ACCOUNTING (Tables)

3 Months Ended

Sep. 30, 2015

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Regulatory Assets Text Block

	As of September 30, 2015		As of December 31, 2014
(Millions of Dollars)	Eversource		Eversource
Benefit Costs	$	1,941.8	$	2,016.0
Derivative Liabilities		412.8		425.5
Income Taxes, Net		635.8		635.3
Storm Restoration Costs		461.3		502.8
Goodwill-related		490.0		505.4
Regulatory Tracker Mechanisms		373.1		350.5
Contractual Obligations - Yankee Companies		142.0		123.8
Other Regulatory Assets		148.9		167.3
Total Regulatory Assets		4,605.7		4,726.6
Less: Current Portion		653.9		672.5
Total Long-Term Regulatory Assets	$	3,951.8	$	4,054.1

	As of September 30, 2015								As of December 31, 2014
			NSTAR								NSTAR
(Millions of Dollars)	CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
Benefit Costs	$	434.8	$	486.8	$	171.1	$	84.2	$	445.4	$	515.9	$	174.3	$	85.0
Derivative Liabilities		406.9		1.4		-		-		410.9		4.5		-		-
Income Taxes, Net		435.7		83.5		34.2		30.5		437.7		83.7		38.0		35.5
Storm Restoration Costs		286.5		113.5		36.3		25.0		319.6		103.7		47.7		31.8
Goodwill-related		-		420.7		-		-		-		433.9		-		-
Regulatory Tracker Mechanisms		16.0		228.0		85.4		30.1		16.1		141.4		103.5		33.0
Other Regulatory Assets		84.4		69.6		34.9		12.7		66.1		94.7		41.3		12.9
Total Regulatory Assets		1,664.3		1,403.5		361.9		182.5		1,695.8		1,377.8		404.8		198.2
Less: Current Portion		243.3		223.5		89.5		48.8		220.3		198.7		111.7		51.9
Total Long-Term Regulatory Assets	$	1,421.0	$	1,180.0	$	272.4	$	133.7	$	1,475.5	$	1,179.1	$	293.1	$	146.3

Schedule Of Regulatory Liabilities Text Block

	As of September 30, 2015		As of December 31, 2014
(Millions of Dollars)	Eversource		Eversource
Cost of Removal	$	433.7	$	439.9
Regulatory Tracker Mechanisms		215.9		192.3
AFUDC - Transmission		66.2		67.1
Other Regulatory Liabilities		27.9		50.8
Total Regulatory Liabilities		743.7		750.1
Less: Current Portion		226.1		235.0
Total Long-Term Regulatory Liabilities	$	517.6	$	515.1

	As of September 30, 2015								As of December 31, 2014
			NSTAR								NSTAR
(Millions of Dollars)	CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
Cost of Removal	$	17.2	$	257.7	$	49.1	$	2.0	$	19.7	$	258.3	$	50.3	$	1.1
Regulatory Tracker Mechanisms		131.1		13.0		8.6		24.2		122.6		20.7		14.2		22.3
AFUDC - Transmission		51.8		5.4		-		9.0		53.6		4.4		-		9.1
Other Regulatory Liabilities		13.2		3.5		3.3		1.0		10.1		28.9		2.9		0.8
Total Regulatory Liabilities		213.3		279.6		61.0		36.2		206.0		312.3		67.4		33.3
Less: Current Portion		136.4		12.3		11.3		24.3		124.7		49.6		16.0		22.5
Total Long-Term Regulatory Liabilities	$	76.9	$	267.3	$	49.7	$	11.9	$	81.3	$	262.7	$	51.4	$	10.8