Medical Claims and Benefits Payable - Narrative (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Insurance [Abstract] | ||
| Incurred but not paid | $ 2,985 | |
| Prior period claims, favorable development | $ 352 | $ 124 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Estimated amount after valuation allowance of reinsurance recoverables, due from reinsurers for incurred claims not yet reported, and claims settlement expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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