v3.26.3
Medical Claims Payable - Schedule of Reconciliation of Medical Claims Payable (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]    
Gross medical claims payable, beginning of period $ 16,829 $ 15,580
Ceded medical claims payable, beginning of period (48) (13)
Net medical claims payable, beginning of period 16,781 15,567
Business combinations and purchase adjustments 0 344
Net incurred medical claims:    
Current period 108,608 108,423
Prior periods redundancies (1,295) (1,266)
Total net incurred medical claims 107,313 107,157
Net payments attributable to:    
Current period medical claims 92,416 93,545
Prior periods medical claims 13,629 12,699
Total net payments 106,045 106,244
Net medical claims payable, end of period 18,049 16,824
Ceded medical claims payable, end of period 45 44
Gross medical claims payable, end of period $ 18,094 $ 16,868