Other Taxes (Tables)

6 Months Ended

Jun. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

State Of Connecticut Gross Earnings Taxes [Table Text Block]

	For the Three Months Ended				For the Six Months Ended
(Millions of Dollars)	June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
NU	$	30.5	$	32.0	$	65.5	$	70.7
CL&P		27.7		28.8		57.1		60.2