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Medical Costs Payable (Notes)
 6 Months Ended
Jun. 30, 2024
Insurance [Abstract]  
Short-Duration Insurance and Deposit Contracts Medical Costs Payable
The following table shows the components of the change in medical costs payable for the six months ended June 30:
(in millions)20242023
Medical costs payable, beginning of period$32,395 $29,056 
Acquisitions (dispositions), net(687)1 
Reported medical costs:
Current year131,583 120,773 
Prior years(390)(660)
Total reported medical costs131,193 120,113 
Medical payments:
Payments for current year
(102,288)(91,621)
Payments for prior years(27,887)(25,602)
Total medical payments(130,175)(117,223)
Less: medical costs payable included within businesses held for sale(179)— 
Medical costs payable, end of period$32,547 $31,947 
For the six months ended June 30, 2024 and 2023, prior years’ medical cost reserve development included no individual factors that were significant. Medical costs payable included reserves for claims incurred by consumers but not yet reported to the Company of $23.6 billion and $22.3 billion at June 30, 2024 and December 31, 2023, respectively.