EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Components of Basic and Diluted EPS

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

Eversource (Millions of Dollars, except share information)	For the Years Ended December 31,
	2021		2020		2019
Net Income Attributable to Common Shareholders	$	1,220.5	$	1,205.2	$	909.1
Weighted Average Common Shares Outstanding:
Basic	343,972,926		338,836,147		321,416,086
Dilutive Effect of:
Share-Based Compensation Awards and Other	658,130		738,994		762,215
Equity Forward Sale Agreement	—		271,921		763,335
Total Dilutive Effect	658,130		1,010,915		1,525,550
Diluted	344,631,056		339,847,062		322,941,636
Basic EPS	$	3.55	$	3.56	$	2.83
Diluted EPS	$	3.54	$	3.55	$	2.81