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INVESTMENTS IN UNCONSOLIDATED AFFILIATES (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity Method Investments and Joint Ventures [Abstract] |
Summary of Investments | Eversource's investments included the following:
|  |  | Investment Balance as of December 31,
(Millions of Dollars) | Ownership Interest |  | 2021 |  | 2020
Offshore Wind Business - North East Offshore | 50 | % |  | $ | 1,213.6 |  |  | $ | 887.1 |
Natural Gas Pipeline - Algonquin Gas Transmission, LLC | 15 | % |  | 121.9 |  |  | 125.2 |
Renewable Energy Investment Fund | 90 | % |  | 76.5 |  |  | 71.6 |
Other | various |  | 24.3 |  |  | 23.2 |
Total Investments in Unconsolidated Affiliates |  |  | $ | 1,436.3 |  |  | $ | 1,107.1 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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