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Assets Held For Sale - Narrative (Details) - Disposal Group, Held-for-Sale, Not Discontinued Operations - Aquarion - USD ($) $ in Millions		3 Months Ended
	Jan. 27, 2025	Mar. 31, 2025	Mar. 31, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, pre-tax income		$ 2.6	$ 7.8
Proceeds from divestiture of business	$ 2,400.0
Disposal group, including discontinued operation, equity	1,600.0
Disposal group, including discontinues operation, debt	$ 800.0

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- Definition

Disposal Group, Including Discontinued Operation, Debt

+ References

No definition available.

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- Definition

Disposal Group, Including Discontinued Operation, Pre-Tax Income

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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.

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- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

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