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DIVIDEND RESTRICTIONS (Details) $ in Millions | Dec. 31, 2021 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 | $ 5,010.0
The Connecticut Light and Power Company |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | 2,230.0
NSTAR Electric Company |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | 2,720.0
Public Service Company of New Hampshire |
Schedule of Restrictions on Retained Earnings [Line Items] |
Retained earnings subject to restrictions | $ 504.6

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