v3.26.1
Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Insurance Claims    
Medical claims and benefits payable, beginning balance $ 4,887 $ 4,640
Components of medical care costs related to:    
Current year 9,523 9,665
Prior years (253) (186)
Total medical care costs 9,270 9,479
Payments for medical care costs related to:    
Current year 5,883 5,789
Prior years 3,628 3,684
Total paid 9,511 9,473
Acquired balances, net of post-acquisition adjustments   245
Change in non-risk and other payables 295 (87)
Medical claims and benefits payable, ending balance 4,941 4,804
Medicaid    
Insurance Claims    
Medical claims and benefits payable, beginning balance 3,638 3,667
Components of medical care costs related to:    
Current year 7,449 7,495
Prior years (153) (156)
Total medical care costs 7,296 7,339
Payments for medical care costs related to:    
Current year 4,717 4,593
Prior years 2,688 2,760
Total paid 7,405 7,353
Acquired balances, net of post-acquisition adjustments   0
Change in non-risk and other payables 295 (87)
Medical claims and benefits payable, ending balance 3,824 3,566
Medicare    
Insurance Claims    
Medical claims and benefits payable, beginning balance 688 722
Components of medical care costs related to:    
Current year 1,434 1,352
Prior years (71) (56)
Total medical care costs 1,363 1,296
Payments for medical care costs related to:    
Current year 818 721
Prior years 532 623
Total paid 1,350 1,344
Acquired balances, net of post-acquisition adjustments   122
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance 701 796
Marketplace    
Insurance Claims    
Medical claims and benefits payable, beginning balance 547 251
Components of medical care costs related to:    
Current year 634 795
Prior years (26) 26
Total medical care costs 608 821
Payments for medical care costs related to:    
Current year 344 458
Prior years 405 287
Total paid 749 745
Acquired balances, net of post-acquisition adjustments   88
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance 406 415
Other    
Insurance Claims    
Medical claims and benefits payable, beginning balance 14 0
Components of medical care costs related to:    
Current year 6 23
Prior years (3) 0
Total medical care costs 3 23
Payments for medical care costs related to:    
Current year 4 17
Prior years 3 14
Total paid 7 31
Acquired balances, net of post-acquisition adjustments   35
Change in non-risk and other payables 0 0
Medical claims and benefits payable, ending balance $ 10 $ 27