NSTAR ELECTRIC COMPANY AND SUBSIDIARY CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Other Comprehensive Income, Net of Tax:
Comprehensive Income/(Loss) Attributable to Common Shareholders	$ 368,386	$ (116,681)	$ 1,274,463	$ 744,665
NSTAR Electric Company
Net Income/(Loss)	193,128	184,549	529,232	502,129
Other Comprehensive Income, Net of Tax:
Changes in Funded Status of SERP Benefit Plan	(4)	(23)	(16)	(67)
Qualified Cash Flow Hedging Instruments	5	5	15	15
Other Comprehensive Loss, Net of Tax	1	(18)	(1)	(52)
Comprehensive Income/(Loss) Attributable to Common Shareholders	$ 193,129	$ 184,531	$ 529,231	$ 502,077