Other Taxes (Tables)

3 Months Ended

Mar. 31, 2013

Notes To Consolidated Financial Statements [Abstract]

State Of Connecticut Gross Earnings Taxes [Table Text Block]

	For the Three Months Ended
(Millions of Dollars)	March 31, 2013		March 31, 2012
NU	$	38.4	$	35.0
CL&P		32.0		29.4