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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

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The amount of cash paid during the reporting period for charges associated with the mergers.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (g)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

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Mergers, Acquisitions and Divestitures - Narrative (Details) $ in Millions				3 Months Ended		9 Months Ended
	Jul. 27, 2026 USD ($) customer shares	Jun. 01, 2026 USD ($) employee customer	Oct. 26, 2025 Rate	Sep. 30, 2026 USD ($) customer	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) acquisition customer	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 09, 2021 USD ($)
Business Combination [Line Items]
Aggregate purchase price		$ 319				$ 116
Number of customers in service \| customer		47,000		34,000		34,000
Number of employees \| employee		70
Number of acquisitions \| acquisition						8
Assets acquired						$ 117
Liabilities assumed				$ 29		$ 29
Number of business combination and asset acquisition acquired \| acquisition						5
Goodwill related to acquisition						$ 28
Interest income				3	$ 23	18	$ 67
Disposal Group, Disposed of by Sale \| Homeowner Services Group
Business Combination [Line Items]
Consideration									$ 1,275
Interest income				0	$ 20	9	$ 60
Disposal Group, Disposed of by Sale \| Homeowner Services Group \| Secured Seller Promissory Note
Business Combination [Line Items]
Debt instrument, face amount								$ 795
Interest rate								10.00%
Essential Utilities, Inc.
Business Combination [Line Items]
Merger transaction, share exchange ratio \| Rate			30.50%
Merger related costs				$ 6		$ 15
Gordon's Corner Water Company
Business Combination [Line Items]
Total consideration for business combination	$ 46
Number of shares issued in business combination (in shares) \| shares	350,652
Number of customers in service \| customer	15,500