XML 47 R30.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Investments | The following tables summarize our current investments as of the dates indicated:
| December 31, 2021
| Amortized Cost |  | Gross Unrealized |  | Estimated Fair Value
|  | Gains |  | Losses |
| (In millions)
Corporate debt securities | $ | 1,836 |  |  | $ | 9 |  |  | $ | 12 |  |  | $ | 1,833 |
Mortgage-backed securities | 616 |  |  | 2 |  |  | 4 |  |  | 614 |
U.S. Treasury notes | 353 |  |  | — |  |  | — |  |  | 353 |
Asset-backed securities | 248 |  |  | — |  |  | 1 |  |  | 247 |
Municipal securities | 123 |  |  | 1 |  |  | 1 |  |  | 123 |
Other | 32 |  |  | — |  |  | — |  |  | 32 |
Total | $ | 3,208 |  |  | $ | 12 |  |  | $ | 18 |  |  | $ | 3,202 |
| December 31, 2020
| Amortized Cost |  | Gross Unrealized |  | Estimated Fair Value
|  | Gains |  | Losses |
| (In millions)
Corporate debt securities | $ | 1,220 |  |  | $ | 36 |  |  | $ | — |  |  | $ | 1,256 |
Mortgage-backed securities | 383 |  |  | 10 |  |  | 1 |  |  | 392 |
U.S. Treasury notes | 27 |  |  | — |  |  | — |  |  | 27 |
Asset-backed securities | 130 |  |  | 2 |  |  | — |  |  | 132 |
Municipal securities | 66 |  |  | 2 |  |  | — |  |  | 68 |
Total | $ | 1,826 |  |  | $ | 50 |  |  | $ | 1 |  |  | $ | 1,875 |
Contractual maturities of investments | The contractual maturities of our current investments as of December 31, 2021 are summarized below:
| Amortized Cost |  | Estimated Fair Value
| (In millions)
Due in one year or less | $ | 665 |  |  | $ | 667 |
Due after one year through five years | 1,667 |  |  | 1,662 |
Due after five years through ten years | 335 |  |  | 335 |
Due after ten years | 541 |  |  | 538 |
Total | $ | 3,208 |  |  | $ | 3,202 |
Available-for-sale investments | The following table summarizes those available-for-sale investments that have been in a continuous loss position for less than 12 months. No investments have been in a continuous loss position for 12 months or more as of December 31, 2021, and 2020.
| In a Continuous Loss Position for Less than 12 Months as of December 31, 2021 |  | In a Continuous Loss Position for Less than 12 Months as of December 31, 2020
| Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions |  | Estimated Fair Value |  | Unrealized Losses |  | Total Number of Positions
| (Dollars in millions)
Corporate debt securities | $ | 1,063 |  |  | $ | 12 |  |  | 395 |  |  | $ | — |  |  | $ | — |  |  | — |
Mortgage-backed securities | 408 |  |  | 4 |  |  | 146 |  |  | 77 |  |  | 1 |  |  | 21 |
Asset-backed securities | 166 |  |  | 1 |  |  | 75 |  |  | — |  |  | — |  |  | — |
Municipal securities | 69 |  |  | 1 |  |  | 61 |  |  | — |  |  | — |  |  | — |
Total | $ | 1,706 |  |  | $ | 18 |  |  | 677 |  |  | $ | 77 |  |  | $ | 1 |  |  | 21 |
Balances of restricted investments | The following table presents the balances of restricted investments:
| December 31,
| 2021 |  | 2020
| (In millions)
Cash and cash equivalents | $ | 68 |  |  | $ | 63 |
U.S. Treasury notes | 144 |  |  | 24 |
Magellan Complete Care acquisition opening balance | — |  |  | 49 |
Total restricted investments | $ | 212 |  |  | $ | 136 |

X
- Definition Restrictions On Investments [Table Text Block] + References No definition available. + Details
Name: | moh_RestrictionsOnInvestmentsTableTextBlock
Namespace Prefix: | moh_
Data Type: | dtr-types: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=121590138&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=123581744&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=124269663&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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: | dtr-types: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: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration