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Restricted Investments | 12 Months Ended
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Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract] |
Restricted Investments | Restricted Investments Pursuant to the regulations governing our Health Plans segment subsidiaries, we maintain statutory deposits and deposits required by government authorities primarily in certificates of deposit and U.S. Treasury securities. We also maintain restricted investments as protection against the insolvency of certain capitated providers. The use of these funds is limited as required by regulation in the various states in which we operate, or as needed in the event of insolvency of capitated providers. Therefore, such investments are reported as “Restricted investments” in the accompanying consolidated balance sheets. We have the ability to hold these restricted investments until maturity, and as a result, we would not expect the value of these investments to decline significantly due to a sudden change in market interest rates. The following table presents the balances of restricted investments:
| December 31,
| 2018 |  | 2017
| (In millions)
Florida | $ | 32 |  |  | $ | 31 |
New Mexico | 43 |  |  | 43 |
Ohio | 12 |  |  | 12 |
Puerto Rico | 10 |  |  | 10 |
Other | 23 |  |  | 23 |
Total Health Plans segment | $ | 120 |  |  | $ | 119 |
The contractual maturities of our held-to-maturity restricted investments, which are carried at amortized cost, which approximates fair value, as of December 31, 2018 are summarized below.
| Amortized Cost |  | Estimated Fair Value
| (In millions)
Due in one year or less | $ | 105 |  |  | $ | 105 |
Due after one year through five years | 15 |  |  | 15 |
| $ | 120 |  |  | $ | 120 |

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- Definition The entire disclosure for assets that are restricted in their use, generally by contractual agreements or regulatory requirements. This would include, but not limited to, a description of the restricted assets and the terms of the restriction. + References No definition available. + Details
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