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Sale of Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Feb. 28, 2026
Accounting Policies [Abstract]
Accounts receivable purchase amount permitted under the agreement		$ 4,250
Participating interest	$ 1,000
Net cash proceeds	970
Sale of accounts receivable	30
Stand-alone Part D risk sharing programs receivables	3,024
Accounts receivable purchase agreement permitted amount, remaining	$ 3,250

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2025 Plan Year Stand-Alone Part D Risk-Sharing Programs Receivable

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- Definition

Accounts Receivable Purchase Agreement Permitted Amount, Maximum

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- Definition

Accounts Receivable Purchase Agreement Permitted Amount, Remaining

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- Definition

Proceeds From Sale Of Participating Interest In Accounts Receivables

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- Definition

Amount of gain (loss) on sale of accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 860
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-5

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Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 4D
-Subparagraph (a)
-SubTopic 20
-Topic 860
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481326/860-20-50-4D

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