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Medical Claims and Benefits Payable (Tables)
9 Months Ended
Sep. 30, 2021
Other Liabilities Disclosure [Abstract]  
Schedule of liability for unpaid claims and claims adjustment expense
The following table provides the details of our medical claims and benefits payable as of the dates indicated:
September 30,
2021
December 31,
2020
 (In millions)
Fee-for-service claims incurred but not paid (“IBNP”)$2,246 $1,647 
Pharmacy payable209 157 
Capitation payable86 70 
Other650 528 
Magellan Complete Care acquisition opening balance— 294 
Total$3,191 $2,696 
Components of the change in medical claims and benefits payable The following table presents the components of the change in our medical claims and benefits payable for the periods indicated, with the prior period recast to conform to the current year presentation. The amounts presented for “Components of medical care costs related to: Prior years” represent decreases in medical care costs resulting from actual medical care costs being less than we previously estimated in the prior year.
Nine Months Ended September 30, 2021
Medicaid Medicare MarketplaceConsolidated
 (In millions)
Medical claims and benefits payable, beginning balance$2,129 $392 $175 $2,696 
Components of medical care costs related to:
Current year13,491 2,195 1,872 17,558 
Prior years(158)(36)(22)(216)
Total medical care costs13,333 2,159 1,850 17,342 
Payments for medical care costs related to:
Current year11,530 1,816 1,534 14,880 
Prior years1,538 340 130 2,008 
Total paid13,068 2,156 1,664 16,888 
Change in acquired balances (19)(8)— (27)
Change in non-risk and other provider payables68 — — 68 
Medical claims and benefits payable, ending balance$2,443 $387 $361 $3,191 

Nine Months Ended September 30, 2020
Medicaid MedicareMarketplaceConsolidated
 (In millions)
Medical claims and benefits payable, beginning balance$1,465 $267 $122 $1,854 
Components of medical care costs related to:
Current year9,029 1,588 861 11,478 
Prior years(41)(25)— (66)
Total medical care costs8,988 1,563 861 11,412 
Payments for medical care costs related to:
Current year7,470 1,316 714 9,500 
Prior years1,193 233 101 1,527 
Total paid8,663 1,549 815 11,027 
Change in non-risk and other provider payables50 — — 50 
Medical claims and benefits payable, ending balance$1,840 $281 $168 $2,289