Guarantor Obligations, Maximum Exposure, Percent Of Obligation

No definition available.

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- Definition

Number Of Letters Of Credit Issued

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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COMMITMENTS AND CONTINGENCIES - Guarantees and Indemnifications (Details) $ in Millions	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jan. 31, 2022 USD ($) letterOfCredit	Sep. 16, 2020 USD ($)
Guarantor Obligations [Line Items]
Number of letters of credit \| letterOfCredit			2
Letters of Credit \| Eversource Investment LLC
Guarantor Obligations [Line Items]
Long-term debt and long term borrowing limit approved by regulatory agency				$ 25.0
North East Offshore
Guarantor Obligations [Line Items]
Ownership interest (percent)	50.00%
Sunrise Wind LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 1,060.0
Ownership interest (percent)	50.00%
Revolution Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 546.4
Ownership interest (percent)	50.00%
South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 7.1
Ownership interest (percent)	50.00%
Eversource Investment LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 110.0
South Fork Class B Member, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 499.5
Ownership interest (percent)	50.00%
Sunrise Wind LLC \| Letters of Credit
Guarantor Obligations [Line Items]
Amount outstanding under line of credit		$ 9.9
Revolution Wind, LLC \| Letters of Credit
Guarantor Obligations [Line Items]
Amount outstanding under line of credit	$ 1.0
South Fork Wind, LLC \| Letters of Credit
Guarantor Obligations [Line Items]
Amount outstanding under line of credit			$ 4.3
Construction-related purchase agreements with third-party contractors \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 161.0
Ownership interest (percent)	50.00%
Construction-related purchase agreements with third-party contractors \| North East Offshore
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 705.8
Construction-related purchase agreements with third-party contractors \| Sunrise Wind LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	823.3
Construction-related purchase agreements with third-party contractors \| Revolution Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	381.1
Construction-related purchase agreements with third-party contractors \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	55.5
Indemnification Agreement \| Eversource Investment LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	29.8
Indemnification Agreement \| Eversource Investment LLC \| North East Offshore
Guarantor Obligations [Line Items]
Maximum exposure (up to)	910.0
Indemnification Agreement \| Eversource Investment LLC \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	77.4
Indemnification Agreement \| South Fork Class B Member, LLC \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	77.4
Power Purchase Agreement \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	7.1
OREC capacity production \| Sunrise Wind LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 15.4
Ownership interest (percent)	50.00%
OREC capacity production \| Sunrise Wind LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 11.0
Real estate purchase \| Bay State Wind LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	2.5
Transmission interconnection \| South Fork Wind, LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	1.2
Letters of Credit \| Eversource Investment LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	15.2
South Fork Wind Tax Equity \| Eversource TEI LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	528.4
South Fork Wind Tax Equity \| Eversource TEI LLC
Guarantor Obligations [Line Items]
Maximum exposure (up to)	0.0
Surety bonds \| Various
Guarantor Obligations [Line Items]
Maximum exposure (up to)	38.8
Lease payments for real estate \| Eversource Service
Guarantor Obligations [Line Items]
Maximum exposure (up to)	0.3
Performance guarantee \| North East Offshore
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 1,300.0
Percent of obligations guaranteed (in percent)	50.00%
Payment guarantee \| North East Offshore
Guarantor Obligations [Line Items]
Maximum exposure (up to)	$ 62.5
Percent of obligations guaranteed (in percent)	50.00%