Acquisition and Assets Held for Sale - Summary of Preliminary Fair Values and Weighted Average Useful Lives for Intangible Assets Acquired (Details) - Signify Health, Inc. $ in Millions	Mar. 29, 2023 USD ($)
Business Acquisition [Line Items]
Gross Fair Value	$ 1,920
Weighted Average Useful Life (years)	16 years
Customer Relationships
Business Acquisition [Line Items]
Gross Fair Value	$ 1,810
Weighted Average Useful Life (years)	16 years 8 months 12 days
Technology
Business Acquisition [Line Items]
Gross Fair Value	$ 50
Weighted Average Useful Life (years)	3 years
Trademarks
Business Acquisition [Line Items]
Gross Fair Value	$ 60
Weighted Average Useful Life (years)	5 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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

No definition available.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

+ References

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-Name Accounting Standards Codification
-Topic 805
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