v3.26.3
Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Insurance Claims    
Medical claims and benefits payable, beginning balance $ 4,887 $ 4,640
Components of medical care costs related to:    
Current year 28,781 29,476
Prior years (352) (124)
Total medical care costs 28,429 29,352
Payments for medical care costs related to:    
Current year 24,692 25,425
Prior years 3,963 4,059
Total paid 28,655 29,484
Acquired balances, net of post-acquisition adjustments   361
Change in non-risk and other payables 327 (25)
Medical claims and benefits payable, ending balance 4,988 4,844
Medicaid    
Insurance Claims    
Medical claims and benefits payable, beginning balance 3,638 3,667
Components of medical care costs related to:    
Current year 22,585 22,165
Prior years (203) (118)
Total medical care costs 22,382 22,047
Payments for medical care costs related to:    
Current year 19,369 19,074
Prior years 2,913 3,067
Total paid 22,282 22,141
Acquired balances, net of post-acquisition adjustments   0
Change in non-risk and other payables 324 (25)
Medical claims and benefits payable, ending balance 4,062 3,548
Medicare    
Insurance Claims    
Medical claims and benefits payable, beginning balance 688 722
Components of medical care costs related to:    
Current year 4,399 4,306
Prior years (114) (56)
Total medical care costs 4,285 4,250
Payments for medical care costs related to:    
Current year 3,787 3,753
Prior years 556 676
Total paid 4,343 4,429
Acquired balances, net of post-acquisition adjustments   152
Change in non-risk and other payables 3 0
Medical claims and benefits payable, ending balance 633 695
Marketplace    
Insurance Claims    
Medical claims and benefits payable, beginning balance 547 251
Components of medical care costs related to:    
Current year 1,789 2,940
Prior years (28) 50
Total medical care costs 1,761 2,990
Payments for medical care costs related to:    
Current year 1,529 2,525
Prior years 487 306
Total paid 2,016 2,831
Acquired balances, net of post-acquisition adjustments   173
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance 292 583
Other    
Insurance Claims    
Medical claims and benefits payable, beginning balance 14 0
Components of medical care costs related to:    
Current year 8 65
Prior years (7) 0
Total medical care costs 1 65
Payments for medical care costs related to:    
Current year 7 73
Prior years 7 10
Total paid 14 83
Acquired balances, net of post-acquisition adjustments   36
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance $ 1 $ 18