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LEASES - Other Information Related to Leases (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Weighted-Average Remaining Lease Term (Years): |  |  |
Operating Leases | 13 years | 10 years |
Finance Leases | 16 years | 17 years |
Weighted-Average Discount Rate (Percentage): |  |  |
Operating Leases | 4.10% | 4.00% |
Finance Leases | 2.70% | 2.90% |
Cash Paid for Amounts Included in the Measurement of Lease Liabilities: |  |  |
Operating Cash Flows from Operating Leases | $ 12.1 | $ 10.9 | $ 11.4
Operating Cash Flows from Finance Leases | 3.4 | 1.7 | 1.2
Financing Cash Flows from Finance Leases | 4.1 | 2.8 | 2.6
Supplemental Non-Cash Information on Lease Liabilities: |  |  |
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities | 2.1 | 0.6 | 2.9
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities | $ 2.3 | $ 0.7 | 2.0
The Connecticut Light and Power Company |  |  |
Weighted-Average Remaining Lease Term (Years): |  |  |
Operating Leases | 7 years | 3 years |
Finance Leases |  | 1 year |
Weighted-Average Discount Rate (Percentage): |  |  |
Operating Leases | 3.00% | 2.40% |
Finance Leases | 0.00% | 10.50% |
Cash Paid for Amounts Included in the Measurement of Lease Liabilities: |  |  |
Operating Cash Flows from Operating Leases | $ 0.3 | $ 0.6 | 0.4
Operating Cash Flows from Finance Leases | 0.1 | 0.3 | 0.6
Financing Cash Flows from Finance Leases | 1.4 | 1.6 | 1.4
Supplemental Non-Cash Information on Lease Liabilities: |  |  |
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities | 0.0 | 0.1 | 1.0
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities | $ 0.0 | $ 0.0 | 0.0
NSTAR Electric Company |  |  |
Weighted-Average Remaining Lease Term (Years): |  |  |
Operating Leases | 18 years | 19 years |
Finance Leases | 20 years | 21 years |
Weighted-Average Discount Rate (Percentage): |  |  |
Operating Leases | 4.00% | 4.10% |
Finance Leases | 2.90% | 2.90% |
Cash Paid for Amounts Included in the Measurement of Lease Liabilities: |  |  |
Operating Cash Flows from Operating Leases | $ 2.1 | $ 1.8 | 1.6
Operating Cash Flows from Finance Leases | 0.6 | 0.6 | 0.6
Financing Cash Flows from Finance Leases | 0.0 | 0.0 | 0.0
Supplemental Non-Cash Information on Lease Liabilities: |  |  |
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities | 1.9 | 0.2 | 0.1
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities | $ 0.0 | $ 0.3 | 0.0
Public Service Company of New Hampshire |  |  |
Weighted-Average Remaining Lease Term (Years): |  |  |
Operating Leases | 7 years | 8 years |
Finance Leases | 7 years | 8 years |
Weighted-Average Discount Rate (Percentage): |  |  |
Operating Leases | 3.70% | 3.70% |
Finance Leases | 3.50% | 3.50% |
Cash Paid for Amounts Included in the Measurement of Lease Liabilities: |  |  |
Operating Cash Flows from Operating Leases | $ 0.1 | $ 0.1 | 0.1
Operating Cash Flows from Finance Leases | 0.0 | 0.0 | 0.0
Financing Cash Flows from Finance Leases | 0.1 | 0.1 | 0.1
Supplemental Non-Cash Information on Lease Liabilities: |  |  |
Right-of-use-Assets Obtained in Exchange for New Operating Lease Liabilities | 0.0 | 0.0 | 0.2
Right-of-use-Assets Obtained in Exchange for New Finance Lease Liabilities | $ 0.0 | $ 0.0 | $ 0.0

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