Accounts Receivable, Net - Amounts (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Receivables [Abstract]
Noninsurance customer receivables	$ 14,690
Pharmaceutical manufacturer receivables	14,094
Insurance customer receivables	1,606
Other receivables	758
Accounts receivable, net	$ 31,148	$ 24,227

Receivables due from customers under insurance contracts.

No definition available.

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- Definition

Receivables due from customers that are not under insurance contracts. These include pharmacy sales and fees due from employer clients.

+ References

No definition available.

+ Details

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- Definition

Receivables due from pharmaceutical manufacturers related to rebate contracts.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

+ Details

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