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Medical Costs Payable (Tables)
3 Months Ended
Mar. 31, 2022
Insurance [Abstract]  
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense
The following table shows the components of the change in medical costs payable for the three months ended March 31:
(in millions)20222021
Medical costs payable, beginning of period$24,483 $21,872 
Acquisitions12 
Reported medical costs:
Current year52,813 45,914 
Prior years(290)(1,010)
Total reported medical costs52,523 44,904 
Medical payments:
Payments for current year
(29,589)(25,960)
Payments for prior years(18,749)(15,995)
Total medical payments(48,338)(41,955)
Medical costs payable, end of period$28,676 $24,833