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Medical Claims and Benefits Payable | 12 Months Ended
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Dec. 31, 2019
Insurance [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.
| December 31,
| 2019 |  | 2018 |  | 2017
| (In millions)
Fee-for-service claims incurred but not paid (“IBNP”) | $ | 1,406 |  |  | $ | 1,562 |  |  | $ | 1,717 |
Pharmacy payable | 126 |  |  | 115 |  |  | 112 |
Capitation payable | 55 |  |  | 52 |  |  | 67 |
Other | 267 |  |  | 232 |  |  | 296 |
Total | $ | 1,854 |  |  | $ | 1,961 |  |  | $ | 2,192 |
“Other” medical claims and benefits payable include 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 operations. Non-risk provider payables amounted to $132 million, $107 million and $122 million, as of December 31, 2019, 2018, and 2017, respectively. The following table presents 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 periods” represent the amount by which our original estimate of medical claims and benefits payable at the beginning of the period were (more) less than the actual amount of the liability based on information (principally the payment of claims) developed since that liability was first reported.
| Year Ended December 31,
| 2019 |  | 2018 |  | 2017
| (In millions)
Medical claims and benefits payable, beginning balance | $ | 1,961 |  |  | $ | 2,192 |  |  | $ | 1,929 |
Components of medical care costs related to: |  |  |  |  |
Current period | 14,176 |  |  | 15,478 |  |  | 17,037 |
Prior periods (1) | (271 | ) |  | (341 | ) |  | 36 |
Total medical care costs | 13,905 |  |  | 15,137 |  |  | 17,073 |
Change in non-risk and other provider payables | 24 |  |  | 13 |  |  | (106 | )
Payments for medical care costs related to: |  |  |  |  |
Current period | 12,554 |  |  | 13,671 |  |  | 15,130 |
Prior periods | 1,482 |  |  | 1,710 |  |  | 1,574 |
Total paid | 14,036 |  |  | 15,381 |  |  | 16,704 |
Medical claims and benefits payable, ending balance | $ | 1,854 |  |  | $ | 1,961 |  |  | $ | 2,192 |
________________
(1) | December 31, 2018, includes the 2018 benefit of the 2017 Marketplace CSR reimbursement of $81 million.
The following tables provide information about incurred and paid claims development as of December 31, 2019, as well as cumulative claims frequency and the total of incurred but not paid claims liabilities. The cumulative claim frequency is measured by claim event, and includes claims covered under capitated arrangements.
Incurred Claims and Allocated Claims Adjustment Expenses |  | Total IBNP |  | Cumulative number of reported claims
Benefit Year |  | 2017 |  | 2018 |  | 2019 |
|  | (Unaudited) |  | (Unaudited) |  |  |  |  |  |
|  | (In millions)
2017 |  | $ | 17,037 |  |  | $ | 16,728 |  |  | $ | 16,704 |  |  | $ | 18 |  |  | 119 |
2018 |  |  |  | 15,478 |  |  | 15,245 |  |  | 25 |  |  | 110 |
2019 |  |  |  |  |  | 14,176 |  |  | 1,348 |  |  | 93 |
|  |  |  |  |  | $ | 46,125 |  |  | $ | 1,391 |  |  |
Cumulative Paid Claims and Allocated Claims Adjustment Expenses |
Benefit Year |  | 2017 |  | 2018 |  | 2019 |
|  | (Unaudited) |  | (Unaudited) |  |  |
|  | (In millions) |
2017 |  | $ | 15,130 |  |  | $ | 16,671 |  |  | $ | 16,686 |  |
2018 |  |  |  | 13,752 |  |  | 15,220 |  |
2019 |  |  |  |  |  | 12,554 |  |
|  |  |  |  |  | $ | 44,460 |  |
The following table represents a reconciliation of claims development to the aggregate carrying amount of the liability for medical claims and benefits payable.
|  |  |  |  |  | 2019 |
|  |  |  |  |  | (In millions) |
Incurred claims and allocated claims adjustment expenses |  | $ | 46,125 |  |
Less: cumulative paid claims and allocated claims adjustment expenses |  | (44,460 | ) |
All outstanding liabilities before 2017 |  | 15 |  |
Non-risk and other provider payables |  | 174 |  |
Medical claims and benefits payable |  | $ | 1,854 |  |
Our estimates of medical claims and benefits payable recorded at December 31, 2018, 2017 and 2016 developed favorably (unfavorably) by approximately $271 million, $341 million and $(36) million in 2019, 2018 and 2017, respectively. The favorable prior year development recognized in 2019 was primarily due to lower than expected utilization of medical services by our Medicaid members, and improved operating performance. Consequently, the ultimate costs recognized in 2019 were lower than our original estimates in 2018, which was not discernible until additional information was provided, and as claims payments were processed. The favorable prior year development recognized in 2018 includes a benefit of approximately $81 million in reduced medical care costs relating to Marketplace CSR subsidies for 2017 dates of service. The remainder of the favorable prior period development was primarily due to lower than expected utilization of medical services by our Medicaid and Marketplace members and improved operating performance. The differences between our original estimates in 2017 and the ultimate costs in 2018 were not discernable until additional information was provided to us in 2018 and the effect became clearer over time as claim payments were processed. The unfavorable prior year development in 2017 was primarily due to higher than expected costs for settling certain claims with certain providers in states where we had recently commenced operations, such as in Illinois and Puerto Rico, or had instituted significant changes due to provider contract changes, such as in Florida and New Mexico. The differences between our original estimates in 2016 and the ultimate costs in 2017 were not discernible until additional information was provided to us in 2017, and the effect became clearer over time as claim payments were processed.

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- Definition The entire disclosure for insurance products considered to be short-duration contracts because the contract provides insurance protection for a fixed period of short duration and enables the insurer to cancel the contract or to adjust the provisions of the contract at the end of any contract period, such as adjusting the amount of premiums charged or coverage provided, and on contracts on which amounts are paid but insurance risk is not transferred. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -URI http://asc.fasb.org/topic&trid=2303980 + Details
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