Acquisitions and Assets Held for Sale - Schedule of Fair Value of Consideration Transferred (Details) - USD ($) shares in Millions, $ in Millions	May 02, 2023	Mar. 29, 2023
Oak Street Health Inc.
Business Acquisition [Line Items]
Cash	$ 9,579
Effective settlement of pre-existing relationship	(29)
Total consideration transferred	9,668
Oak Street Health Inc. \| Pre-combination services
Business Acquisition [Line Items]
Fair value of replacement equity awards for pre-combination services	$ 118
Replacement equity awards for pre-combination services (in shares)	3.9
Oak Street Health Inc. \| Post-combination services
Business Acquisition [Line Items]
Fair value of replacement equity awards for pre-combination services	$ 165
Signify Health, Inc.
Business Acquisition [Line Items]
Cash		$ 7,450
Effective settlement of pre-existing relationship		(111)
Total consideration transferred		7,353
Signify Health, Inc. \| 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)		3.2
Signify Health, Inc. \| Post-combination services
Business Acquisition [Line Items]
Fair value of replacement equity awards for pre-combination services		$ 167

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Number of shares of equity interests issued or issuable to acquire entity.

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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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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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