Quarterly report pursuant to Section 13 or 15(d)

Medical Claims Liability - Schedule of Change in Medical Claims Liability (Details)

v3.22.1
Medical Claims Liability - Schedule of Change in Medical Claims Liability (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]    
Balance, January 1 $ 14,243 $ 12,438
Less: Reinsurance recoverable 23 23
Balance, January 1, net 14,220 12,415
Acquisitions and divestitures 249 0
Incurred related to:    
Current year 28,561 24,255
Prior years (723) (864)
Total incurred 27,838 23,391
Paid related to:    
Current year 17,398 15,161
Prior years 8,662 7,828
Total paid 26,060 22,989
Balance at March 31, net 16,247 12,817
Plus: Reinsurance recoverable 12 25
Balance, March 31 $ 16,259 $ 12,842