Other Taxes (Tables)

6 Months Ended

Jun. 30, 2013

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, 2013		June 30, 2012		June 30, 2013		June 30, 2012
NU	$	33.0	$	30.5	$	71.4	$	65.5
CL&P		29.8		27.7		61.8		57.1