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Medical Costs Payable (Tables)
3 Months Ended
Mar. 31, 2023
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)20232022
Medical costs payable, beginning of period$29,056 $24,483 
Acquisitions
Reported medical costs:
Current year60,315 52,813 
Prior years(470)(290)
Total reported medical costs59,845 52,523 
Medical payments:
Payments for current year
(35,087)(29,589)
Payments for prior years(22,006)(18,749)
Total medical payments(57,093)(48,338)
Medical costs payable, end of period$31,809 $28,676