COMMON SHARES (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Schedule of Stock by Class

The following table sets forth the Eversource parent common shares and the shares of common stock of CL&P, NSTAR Electric, PSNH and WMECO that were authorized and issued, as well as the respective per share par values:  

	Shares
			Authorized as of March 31, 2017 and	Issued as of
	Par Value		December 31, 2016	March 31, 2017	December 31, 2016
Eversource	$	5	380,000,000	333,878,402	333,878,402
CL&P	$	10	24,500,000	6,035,205	6,035,205
NSTAR Electric	$	1	100,000,000	100	100
PSNH	$	1	100,000,000	301	301
WMECO	$	25	1,072,471	434,653	434,653