EARNINGS PER SHARE (Tables)

6 Months Ended

Jun. 30, 2017

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				For the Six Months Ended
	June 30, 2017		June 30, 2016		June 30, 2017		June 30, 2016
Net Income Attributable to Common Shareholders	$	230.7	$	203.6	$	490.2	$	447.8
Weighted Average Common Shares Outstanding:
Basic	317,391,365		317,785,495		317,427,258		317,651,319
Dilutive Effect	555,829		691,204		608,606		827,557
Diluted	317,947,194		318,476,699		318,035,864		318,478,876
Basic and Diluted EPS	$	0.72	$	0.64	$	1.54	$	1.41