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Medical Claims and Benefits Payable | 3 Months Ended
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Mar. 31, 2024
Other Liabilities Disclosure [Abstract] |
Medical Claims and Benefits Payable | Medical Claims and Benefits Payable The following table provides the details of our medical claims and benefits payable as of the dates indicated:
| March 31, 2024 |  | December 31, 2023
| (In millions)
Claims incurred but not paid (“IBNP”) | $ | 3,239 |  |  | $ | 2,901 |
Pharmacy payable | 229 |  |  | 202 |
Capitation payable | 152 |  |  | 100 |
Other | 951 |  |  | 1,001 |
Total | $ | 4,571 |  |  | $ | 4,204 |
“Other” medical claims and benefits payable mainly includes amounts payable to certain providers for which we act as an intermediary on behalf of various government agencies without assuming financial risk. Such receipts and payments do not impact our consolidated statements of income. Non-risk provider payables amounted to $353 million and $481 million as of March 31, 2024, and December 31, 2023, respectively. The following tables present the components of the change in our medical claims and benefits payable for the periods indicated. The amounts presented for “Components of medical care costs related to: Prior years” represent the amount by which our original estimate of medical claims and benefits payable at the beginning of the year varied from the actual liabilities, based on information (principally the payment of claims) developed since those liabilities were first reported.
| Three Months Ended March 31, 2024
| Medicaid |  | Medicare |  | Marketplace |  | Consolidated
| (In millions)
Medical claims and benefits payable, beginning balance | $ | 3,444 |  |  | $ | 532 |  |  | $ | 228 |  |  | $ | 4,204 |
Components of medical care costs related to: |  |  |  |  |  |  |
Current year | 7,007 |  |  | 1,318 |  |  | 423 |  |  | 8,748 |
Prior years | (289) |  |  | (39) |  |  | (6) |  |  | (334) |
Total medical care costs | 6,718 |  |  | 1,279 |  |  | 417 |  |  | 8,414 |
Payments for medical care costs related to: |  |  |  |  |  |  |
Current year | 4,491 |  |  | 702 |  |  | 216 |  |  | 5,409 |
Prior years | 2,066 |  |  | 630 |  |  | 183 |  |  | 2,879 |
Total paid | 6,557 |  |  | 1,332 |  |  | 399 |  |  | 8,288 |
Acquired balances, net of post-acquisition adjustments | — |  |  | 391 |  |  | — |  |  | 391 |
Change in non-risk and other payables | (119) |  |  | (31) |  |  | — |  |  | (150) |
Medical claims and benefits payable, ending balance | $ | 3,486 |  |  | $ | 839 |  |  | $ | 246 |  |  | $ | 4,571 |
| Three Months Ended March 31, 2023
| Medicaid |  | Medicare |  | Marketplace |  | Consolidated
| (In millions)
Medical claims and benefits payable, beginning balance | $ | 2,815 |  |  | $ | 452 |  |  | $ | 261 |  |  | $ | 3,528 |
Components of medical care costs related to: |  |  |  |  |  |  |
Current year | 5,865 |  |  | 934 |  |  | 370 |  |  | 7,169 |
Prior years | (250) |  |  | (14) |  |  | (34) |  |  | (298) |
Total medical care costs | 5,615 |  |  | 920 |  |  | 336 |  |  | 6,871 |
Payments for medical care costs related to: |  |  |  |  |  |  |
Current year | 3,728 |  |  | 542 |  |  | 217 |  |  | 4,487 |
Prior years | 1,822 |  |  | 369 |  |  | 167 |  |  | 2,358 |
Total paid | 5,550 |  |  | 911 |  |  | 384 |  |  | 6,845 |
Acquired balances, net of post-acquisition adjustments | — |  |  | — |  |  | — |  |  | — |
Change in non-risk and other provider payables | 270 |  |  | — |  |  | — |  |  | 270 |
Medical claims and benefits payable, ending balance | $ | 3,150 |  |  | $ | 461 |  |  | $ | 213 |  |  | $ | 3,824 |
Our estimates of medical claims and benefits payable recorded at December 31, 2023, and 2022 developed favorably by approximately $334 million and $298 million as of March 31, 2024, and 2023, respectively. The favorable prior year development recognized in the three months ended March 31, 2024 was primarily due to lower than expected utilization of medical services by our members and improved operating performance, mainly in the Medicaid segment. Consequently, the ultimate costs recognized in 2024, as claims payments were processed, were lower than our estimates in 2023.

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