EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the components of basic and diluted EPS:

Eversource (Millions of Dollars, except share information)	For the Three Months Ended
	March 31, 2018		March 31, 2017
Net Income Attributable to Common Shareholders	$	269.5	$	259.5
Weighted Average Common Shares Outstanding:
Basic	317,397,052		317,463,151
Dilutive Effect	595,947		661,385
Diluted	317,992,999		318,124,536
Basic and Diluted EPS	$	0.85	$	0.82