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Medical Costs Payable (Tables)
6 Months Ended
Jun. 30, 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 six months ended June 30:
(in millions)20232022
Medical costs payable, beginning of period$29,056 $24,483 
Acquisitions171 
Reported medical costs:
Current year120,773 104,936 
Prior years(660)(320)
Total reported medical costs120,113 104,616 
Medical payments:
Payments for current year
(91,621)(78,937)
Payments for prior years(25,602)(21,355)
Total medical payments(117,223)(100,292)
Medical costs payable, end of period$31,947 $28,978