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Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2017
Accounting Policies [Abstract] |
Receivables (payables) for 3R programs | Our receivables (payables) for each of these programs, as of the dates indicated, were as follows:
| June 30, 2017 |  | December 31, 2016
| Current Benefit Year |  | Prior Benefit Years |  | Total |
| (In millions)
Risk adjustment | $ | (502 | ) |  | $ | (546 | ) |  | $ | (1,048 | ) |  | $ | (522 | )
Reinsurance | — |  |  | 57 |  |  | 57 |  |  | 55 |
Risk corridor | — |  |  | (1 | ) |  | (1 | ) |  | (1 | )
Minimum MLR | (3 | ) |  | (2 | ) |  | (5 | ) |  | (1 | )
Quality incentive premium revenue recognized | The following table quantifies the quality incentive premium revenue recognized for the periods presented, including the amounts earned in the periods presented and prior periods. Although the reasonably possible effects of a change in estimate related to quality incentive premium revenue as of June 30, 2017 are not known, we have no reason to believe that the adjustments to prior years noted below are not indicative of the potential future changes in our estimates as of June 30, 2017.
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
| (Dollars in millions)
Maximum available quality incentive premium - current period | $ | 39 |  |  | $ | 41 |  |  | $ | 77 |  |  | $ | 81 |
Quality incentive premium revenue recognized in current period: |  |  |  |  |  |  |
Earned current period | $ | 29 |  |  | $ | 36 |  |  | $ | 48 |  |  | $ | 54 |
Earned prior periods | 1 |  |  | 49 |  |  | 6 |  |  | 54 |
Total | $ | 30 |  |  | $ | 85 |  |  | $ | 54 |  |  | 108 |
Quality incentive premium revenue recognized as a percentage of total premium revenue | 0.6 | % |  | 2.1 | % |  | 0.6 | % |  | 1.3 | %

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