PUBLIC SERVICE COMPANY OF NEW HAMPSHIRE AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net Income	$ 1,228,046	$ 1,212,686	$ 916,572
Other Comprehensive Income/(Loss), Net of Tax:
Qualified Cash Flow Hedging Instruments	972	1,596	1,393
Changes in Unrealized (Losses)/Gains on Marketable Securities	(671)	342	1,166
Other Comprehensive Income/(Loss), Net of Tax	34,136	(11,352)	(5,059)
Comprehensive Income Attributable to Common Shareholders	1,254,663	1,193,815	903,994
Public Service Company of New Hampshire
Net Income	150,338	147,312	134,048
Other Comprehensive Income/(Loss), Net of Tax:
Qualified Cash Flow Hedging Instruments	673	1,075	1,075
Changes in Unrealized (Losses)/Gains on Marketable Securities	(37)	19	69
Other Comprehensive Income/(Loss), Net of Tax	636	1,094	1,144
Comprehensive Income Attributable to Common Shareholders	$ 150,974	$ 148,406	$ 135,192