v3.26.3
Medical Claims Payable - Schedule of Reconciliation of the Claims Development to the Claims Liability (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Insurance [Abstract]    
Net medical claims payable, end of period $ 18,049  
Ceded medical claims payable, end of period 45  
Insurance lines other than short duration 344  
Gross medical claims payable, end of period $ 18,438 $ 17,084