Number of Assets Acquired from Business Combination and Asset Acquisition

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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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.

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No definition available.

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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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- Definition

Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Goodwill and Other Intangible Assets - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) acquisition	Dec. 31, 2021 USD ($) acquisition	Dec. 31, 2020 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill from acquisitions	$ 4,000,000
Number of acquisitions \| acquisition	26	23
Finite-lived intangible assets, amortization		$ 9,000,000	$ 12,000,000
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	$ 0	0
Finite-lived intangible assets, amortization	0
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets	0	0
Finite-lived intangible assets, amortization	0
Other \| Disposal Group, Disposed of by Sale \| Homeowner Services Group
Finite-Lived Intangible Assets [Line Items]
Goodwill reduced through sale of HOS		$ 370,000,000
Operating Segments \| Regulated Businesses
Finite-Lived Intangible Assets [Line Items]
Goodwill from acquisitions	$ 4,000,000
Number of acquisitions \| acquisition	1