Acquisition and Assets Held for Sale - Schedule of Fair Value of Consideration Transferred (Details) - Signify Health, Inc. shares in Millions, $ in Millions	Mar. 29, 2023 USD ($) shares
Business Acquisition [Line Items]
Cash	$ 7,450
Effective settlement of pre-existing relationship	(111)
Total consideration transferred	7,353
Pre-combination services
Business Acquisition [Line Items]
Fair value of replacement equity awards for pre-combination services	$ 14
Replacement equity awards for pre-combination services (in shares) \| shares	3.2
Post-combination services
Business Acquisition [Line Items]
Fair value of replacement equity awards for pre-combination services	$ 167

Business Combination, Consideration Transferred, Effective Settlement Of Pre-Existing Relationship

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