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DERIVATIVE INSTRUMENTS (Tables)
 6 Months Ended
Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Gross Fair Values and Net Amounts of Contracts The following table presents the gross fair values of contracts, categorized by risk type, and the net amounts recorded as current or long-term derivative assets or liabilities:
 As of June 30, 2024As of December 31, 2023
CL&P
(Millions of Dollars)
Fair Value HierarchyCommodity Supply and Price Risk
Management
Netting (1)
Net Amount
Recorded as a Derivative		Commodity Supply and Price Risk
Management
Netting (1)
Net Amount
Recorded as
a Derivative
Current Derivative AssetsLevel 2$15.5 $(0.4)$15.1 $16.4 $(0.5)$15.9 
Long-Term Derivative AssetsLevel 26.2 (0.2)6.0 13.6 (0.5)13.1 
Current Derivative LiabilitiesLevel 2(77.4)— (77.4)(81.9)— (81.9)
Long-Term Derivative LiabilitiesLevel 2(31.1)— (31.1)(68.0)— (68.0)
    

(1)    Amounts represent derivative assets and liabilities that Eversource elected to record net on the balance sheets.  These amounts are subject to master netting agreements or similar agreements for which the right of offset exists.
Changes in the Level 3 Category of Derivative Assets Measured at Fair Value on a Recurring Basis
The following table presents changes in the Level 3 category of derivative assets and derivative liabilities measured at fair value on a recurring basis.  The derivative assets and liabilities are presented on a net basis.

CL&PFor the Three Months Ended June 30, 2023For the Six Months Ended June 30, 2023
(Millions of Dollars)
Derivatives, Net:
Fair Value as of Beginning of Period$(168.8)$(181.8)
Net Realized/Unrealized Gains/(Losses) Included in Regulatory Assets1.8 (0.1)
Settlements14.9 29.8 
Fair Value as of End of Period$(152.1)$(152.1)