v3.25.3
Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Insurance Claims    
Medical claims and benefits payable, beginning balance $ 4,640 $ 4,204
Components of medical care costs related to:    
Current year 29,476 26,050
Prior years (124) (625)
Total medical care costs 29,352 25,425
Payments for medical care costs related to:    
Current year 25,425 22,172
Prior years 4,059 3,215
Total paid 29,484 25,387
Acquired balances, net of post-acquisition adjustments 361 463
Change in non-risk and other payables (25) 27
Medical claims and benefits payable, ending balance 4,844 4,732
Medicaid    
Insurance Claims    
Medical claims and benefits payable, beginning balance 3,667 3,444
Components of medical care costs related to:    
Current year 22,165 20,903
Prior years (118) (553)
Total medical care costs 22,047 20,350
Payments for medical care costs related to:    
Current year 19,074 17,813
Prior years 3,067 2,256
Total paid 22,141 20,069
Acquired balances, net of post-acquisition adjustments 0 0
Change in non-risk and other payables (25) 27
Medical claims and benefits payable, ending balance 3,548 3,752
Medicare    
Insurance Claims    
Medical claims and benefits payable, beginning balance 722 532
Components of medical care costs related to:    
Current year 4,306 3,798
Prior years (56) (70)
Total medical care costs 4,250 3,728
Payments for medical care costs related to:    
Current year 3,753 3,237
Prior years 676 742
Total paid 4,429 3,979
Acquired balances, net of post-acquisition adjustments 152 463
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance 695 744
Marketplace    
Insurance Claims    
Medical claims and benefits payable, beginning balance 251 228
Components of medical care costs related to:    
Current year 2,940 1,349
Prior years 50 (2)
Total medical care costs 2,990 1,347
Payments for medical care costs related to:    
Current year 2,525 1,122
Prior years 306 217
Total paid 2,831 1,339
Acquired balances, net of post-acquisition adjustments 173 0
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance 583 236
Other    
Insurance Claims    
Medical claims and benefits payable, beginning balance 0 0
Components of medical care costs related to:    
Current year 65 0
Prior years 0 0
Total medical care costs 65 0
Payments for medical care costs related to:    
Current year 73 0
Prior years 10 0
Total paid 83 0
Acquired balances, net of post-acquisition adjustments 36 0
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance $ 18 $ 0