XML 101 R73.htm IDEA: XBRL DOCUMENT v3.25.0.1
FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
Carrying Amounts and Estimated Fair Values of Financial Instruments The fair values provided in the table below are classified as Level 2 within the fair value hierarchy.  Carrying amounts and estimated fair values are as follows:
 EversourceCL&PNSTAR ElectricPSNH
(Millions of Dollars)Carrying AmountFair ValueCarrying
Amount		Fair
Value		Carrying
Amount		Fair
Value		Carrying
Amount		Fair
Value
As of December 31, 2024:
Preferred Stock Not Subject to Mandatory Redemption$155.6 $123.8 $116.2 $90.3 $43.0 $33.5 $— $— 
Long-Term Debt26,704.8 24,791.4 5,111.1 4,705.8 5,094.9 4,759.4 1,732.1 1,529.7 
Rate Reduction Bonds367.3 352.1 — — — — 367.3 352.1 
As of December 31, 2023:
Preferred Stock Not Subject to Mandatory Redemption$155.6 $122.2 $116.2 $90.4 $43.0 $31.8 $— $— 
Long-Term Debt24,413.5 22,855.2 4,814.4 4,572.0 4,496.9 4,273.7 1,431.6 1,292.6 
Rate Reduction Bonds410.5 395.0 — — — — 410.5 395.0