XML 50 R32.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract] |
Investments | The following tables summarize our current investments as of the dates indicated:
| December 31, 2019
| Amortized |  | Gross Unrealized |  | Estimated
| Cost |  | Gains |  | Losses |  | Fair Value
| (In millions)
Corporate debt securities | $ | 1,174 |  |  | $ | 5 |  |  | $ | 1 |  |  | $ | 1,178 |
Mortgage-backed securities | 420 |  |  | 1 |  |  | 1 |  |  | 420 |
Asset-backed securities | 126 |  |  | 1 |  |  | — |  |  | 127 |
U.S. Treasury notes | 86 |  |  | — |  |  | — |  |  | 86 |
Municipal securities | 78 |  |  | — |  |  | — |  |  | 78 |
GSEs | 49 |  |  | — |  |  | — |  |  | 49 |
Foreign securities | 7 |  |  | — |  |  | — |  |  | 7 |
Certificates of deposit | 1 |  |  | — |  |  | — |  |  | 1 |
Total | $ | 1,941 |  |  | $ | 7 |  |  | $ | 2 |  |  | $ | 1,946 |
| December 31, 2018
| Amortized Cost |  | Gross Unrealized |  | Estimated Fair Value
|  | Gains |  | Losses |
| (In millions)
Corporate debt securities | $ | 1,131 |  |  | $ | — |  |  | $ | 8 |  |  | $ | 1,123 |
Asset-backed securities | 83 |  |  | — |  |  | 1 |  |  | 82 |
U.S. Treasury notes | 181 |  |  | — |  |  | — |  |  | 181 |
Municipal securities | 115 |  |  | — |  |  | 1 |  |  | 114 |
GSEs | 164 |  |  | — |  |  | 1 |  |  | 163 |
Foreign securities | 4 |  |  | — |  |  | — |  |  | 4 |
Certificates of deposit | 14 |  |  | — |  |  | — |  |  | 14 |
Total | $ | 1,692 |  |  | $ | — |  |  | $ | 11 |  |  | $ | 1,681 |
Contractual maturities of investments | The contractual maturities of our current investments as of December 31, 2019 are summarized below:
| Amortized Cost |  | Estimated Fair Value
| (In millions)
Due in one year or less | $ | 453 |  |  | $ | 453 |
Due after one year through five years | 957 |  |  | 962 |
Due after five years through ten years | 171 |  |  | 171 |
Due after ten years | 360 |  |  | 360 |
Total | $ | 1,941 |  |  | $ | 1,946 |
Available-for-sale investments | The following table segregates those available-for-sale investments that have been in a continuous loss position for less than 12 months, and those that have been in a continuous loss position for 12 months or more as of December 31, 2019:
| In a Continuous Loss Position for Less than 12 Months |  | In a Continuous Loss Position for 12 Months or More
| Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions |  | Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions
| (Dollars in millions)
Corporate debt securities | $ | 222 |  |  | $ | 1 |  |  | 167 |  |  | $ | — |  |  | $ | — |  |  | — |
Mortgage-backed securities | 143 |  |  | 1 |  |  | 72 |  |  | — |  |  | — |  |  | — |
Total | $ | 365 |  |  | $ | 2 |  |  | 239 |  |  | $ | — |  |  | $ | — |  |  | — |
The following table segregates those available-for-sale investments that have been in a continuous loss position for less than 12 months, and those that have been in a continuous loss position for 12 months or more as of December 31, 2018:
| In a Continuous Loss Position for Less than 12 Months |  | In a Continuous Loss Position for 12 Months or More
| Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions |  | Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions
| (Dollars in millions)
Corporate debt securities | $ | 509 |  |  | $ | 3 |  |  | 285 |  |  | $ | 412 |  |  | $ | 5 |  |  | 298 |
Asset-backed securities | — |  |  | — |  |  | — |  |  | 68 |  |  | 1 |  |  | 52 |
Municipal securities | — |  |  | — |  |  | — |  |  | 87 |  |  | 1 |  |  | 90 |
GSEs | — |  |  | — |  |  | — |  |  | 127 |  |  | 1 |  |  | 76 |
Total | $ | 509 |  |  | $ | 3 |  |  | 285 |  |  | $ | 694 |  |  | $ | 8 |  |  | 516 |
Balances of restricted investments | The following table presents the balances of restricted investments:
| December 31,
| 2019 |  | 2018
| (In millions)
Florida | $ | 12 |  |  | $ | 32 |
New Mexico | 21 |  |  | 43 |
Ohio | 12 |  |  | 12 |
Puerto Rico | 11 |  |  | 10 |
Other | 23 |  |  | 23 |
Total Health Plans segment | $ | 79 |  |  | $ | 120 |

X
- Definition Restrictions On Investments [Table Text Block] + References No definition available. + Details
Name: | moh_RestrictionsOnInvestmentsTableTextBlock
Namespace Prefix: | moh_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=118942371&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration