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SEGMENT INFORMATION - Narrative (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2025 USD ($) reportableSegment
CL&P |
Segment Reporting Information [Line Items] |
Number of reportable segment | 1
NSTAR Electric |
Segment Reporting Information [Line Items] |
Number of reportable segment | 1
PSNH |
Segment Reporting Information [Line Items] |
Number of reportable segment | 1
Related Party |
Segment Reporting Information [Line Items] |
Amount of natural gas transmission purchased | $ | $ 77.7

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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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