XML 46 R36.htm IDEA: XBRL DOCUMENT v3.25.3
Medical Costs Payable (Narrative) (Details) - USD ($)
$ in Billions
Sep. 30, 2025
Dec. 31, 2024
Insurance [Abstract]    
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount $ 27.8 $ 23.7