v3.26.1
Insurance Liabilities - Components of Change in Health Care Costs Payable (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
state
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]      
Health care costs payable, beginning of the period   $ 15,399 $ 15,064
Less: Reinsurance recoverables   90 81
Less: Impact of discount rate on long-duration insurance reserves   (20) (1)
Health care costs payable, beginning of the period, net   15,329 14,984
Add: Components of incurred health care costs      
Current year   61,927 61,345
Prior years   (1,242) (1,900)
Total incurred health care costs   60,685 59,445
Less: Claims paid      
Current year   48,007 48,791
Prior years   11,804 11,342
Total claims paid   59,811 60,133
Health care costs payable, end of the period, net $ 16,203 16,203 14,296
Add: Premium deficiency reserves 15 15 902
Add: Reinsurance recoverables 112 112 103
Add: Impact of discount rate on long-duration insurance reserves (17) (17) (30)
Health care costs payable, end of the period $ 16,313 16,313 15,271
Medicaid Product Line      
Less: Claims paid      
Premium deficiency reserve, number of states | state 1    
Health Care Benefits      
Less: Claims paid      
Benefit costs recorded in other insurance liabilities   53 19
Corporate/ Other      
Less: Claims paid      
Benefit costs recorded in other insurance liabilities   $ 90 $ 86