SHORT TERM DEBT (TABLES)

12 Months Ended

Dec. 31, 2011

Notes To Consolidated Financial Statements [Abstract]

Schedule of Short-term Debt [Table Text Block]

	As of and for the Years Ended December 31,
	2011									2010
(Millions of Dollars, except percentages)	CL&P			PSNH			WMECO			CL&P			PSNH			WMECO
Borrowings from/(Lendings to)	$	58.5		$	(55.9)		$	(11.0)		$	6.2		$	47.9		$	20.4
Weighted-Average Interest Rates		0.08	%		0.1	%		0.1	%		0.19	%		0.18	%		0.14	%