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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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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No definition available.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Acquisition and Assets Held for Sale - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended	2 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 02, 2023	May 01, 2023	Feb. 21, 2023	Feb. 28, 2023	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	May 02, 2023	Mar. 29, 2023
Business Acquisition [Line Items]
Proceeds from debt	$ 4,900	$ 5,000	$ 6,000	$ 6,000
Loss on assets held for sale							$ 0		$ 0	$ 349	$ 41
Oak Street Health Inc.
Business Acquisition [Line Items]
Percentage of voting interests acquired													100.00%
Cash to be received by shareholders in proposed acquisition (in dollars per share)													$ 39.00
Deferred income taxes													$ 773
Revenue since acquisition date					$ 507
Transaction costs										77
Signify Health, Inc.
Business Acquisition [Line Items]
Percentage of voting interests acquired														100.00%
Cash to be received by shareholders in proposed acquisition (in dollars per share)														$ 30.50
Goodwill deductible for income tax purposes														$ 1,700
Deferred income taxes														$ 274
Revenue since acquisition date						$ 267
Transaction costs										$ 37
Disposal Group, Held-for-sale, Not Discontinued Operations \| Omnicare Long-Term Care Business \| Pharmacy & Consumer Wellness
Business Acquisition [Line Items]
Loss on assets held for sale								$ 349				$ 2,500