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DIVIDEND RESTRICTIONS (Details) $ in Millions | Dec. 31, 2022 USD ($)
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Schedule of Restrictions on Retained Earnings [Line Items] |
Consolidated total debt to total capital ratio (as a percentage) | 0.65
Retained earnings subject to restrictions | $ 5,530.0
CL&P |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | 2,460.0
NSTAR Electric |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | 2,920.0
PSNH |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | $ 572.1

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