Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Medical Claims Liability - Schedule of Change in Medical Claims Liability (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]    
Balance, January 1 $ 12,438 $ 7,473
Less: Reinsurance recoverable 23 20
Balance, January 1, net 12,415 7,453
Acquisitions and divestitures 0 3,746
Incurred related to:    
Current year 49,147 41,149
Prior years (1,367) (422)
Total incurred 47,780 40,727
Paid related to:    
Current year 38,618 34,783
Prior years 8,837 5,742
Total paid 47,455 40,525
Balance at June 30, net 12,740 11,401
Plus: Reinsurance recoverable 23 17
Balance, June 30 $ 12,763 $ 11,418