Allowance for Funds Used During Construction (Tables)

12 Months Ended

Dec. 31, 2013

Notes To Consolidated Financial Statements [Abstract]

Schedule Of Allowance For Funds Used During Construction [Table Text Block]

NU		For the Years Ended December 31,
(Millions of Dollars, except percentages)		2013		2012 (1)		2011
AFUDC:
	Borrowed Funds	$	4.1	$	5.3	$	11.8
	Equity Funds		7.1		6.8		22.5
Total		$	11.2	$	12.1	$	34.3
Average AFUDC Rate			2.7%		3.7%		7.3%
(1) NSTAR amounts were included in NU beginning April 10, 2012.

		For the Years Ended December 31,
		2013								2012								2011
(Millions of Dollars,				NSTAR								NSTAR								NSTAR
except percentages)		CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO		CL&P		Electric		PSNH		WMECO
AFUDC:
	Borrowed Funds	$	2.2	$	0.5	$	0.5	$	0.5	$	2.5	$	0.3	$	1.6	$	0.5	$	3.3	$	0.2	$	7.1	$	0.5
	Equity Funds		2.9		-		0.2		1.0		1.9		-		1.9		1.0		6.0		-		13.2		1.0
Total		$	5.1	$	0.5	$	0.7	$	1.5	$	4.4	$	0.3	$	3.5	$	1.5	$	9.3	$	0.2	$	20.3	$	1.5
Average AFUDC Rate			3.7%		0.5%		1.1%		6.1%		3.6%		0.4%		5.9%		6.8%		8.3%		0.3%		7.1%		7.4%