3.26.1 html 198 227 1 false 48 0 false 8 false false R1.htm 0000001 - Document - Cover Page Sheet http://www.molinahealthcare.com/role/CoverPage Cover Page Cover 1 false false R2.htm 9952151 - Statement - CONSOLIDATED STATEMENTS OF INCOME Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDSTATEMENTSOFINCOME CONSOLIDATED STATEMENTS OF INCOME Statements 2 false false R3.htm 9952152 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVELOSSINCOME CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME Statements 3 false false R4.htm 9952153 - Statement - CONSOLIDATED BALANCE SHEETS Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDBALANCESHEETS CONSOLIDATED BALANCE SHEETS Statements 4 false false R5.htm 9952154 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDBALANCESHEETSParenthetical CONSOLIDATED BALANCE SHEETS (Parenthetical) Statements 5 false false R6.htm 9952155 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Statements 6 false false R7.htm 9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Sheet http://www.molinahealthcare.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWS CONSOLIDATED STATEMENTS OF CASH FLOWS Statements 7 false false R8.htm 9952157 - Disclosure - Organization and Basis of Presentation Sheet http://www.molinahealthcare.com/role/OrganizationandBasisofPresentation Organization and Basis of Presentation Notes 8 false false R9.htm 9952158 - Disclosure - Significant Accounting Policies Sheet http://www.molinahealthcare.com/role/SignificantAccountingPolicies Significant Accounting Policies Notes 9 false false R10.htm 9952159 - Disclosure - Net Income Per Share Sheet http://www.molinahealthcare.com/role/NetIncomePerShare Net Income Per Share Notes 10 false false R11.htm 9952160 - Disclosure - Fair Value Measurements Sheet http://www.molinahealthcare.com/role/FairValueMeasurements Fair Value Measurements Notes 11 false false R12.htm 9952161 - Disclosure - Investments Sheet http://www.molinahealthcare.com/role/Investments Investments Notes 12 false false R13.htm 9952162 - Disclosure - Medical Claims and Benefits Payable Sheet http://www.molinahealthcare.com/role/MedicalClaimsandBenefitsPayable Medical Claims and Benefits Payable Notes 13 false false R14.htm 9952163 - Disclosure - Debt Sheet http://www.molinahealthcare.com/role/Debt Debt Notes 14 false false R15.htm 9952164 - Disclosure - Segments Sheet http://www.molinahealthcare.com/role/Segments Segments Notes 15 false false R16.htm 9952165 - Disclosure - Commitments and Contingencies Sheet http://www.molinahealthcare.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 16 false false R17.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 17 false false R18.htm 9955511 - Disclosure - Significant Accounting Policies (Policies) Sheet http://www.molinahealthcare.com/role/SignificantAccountingPoliciesPolicies Significant Accounting Policies (Policies) Policies http://www.molinahealthcare.com/role/SignificantAccountingPolicies 18 false false R19.htm 9955512 - Disclosure - Significant Accounting Policies (Tables) Sheet http://www.molinahealthcare.com/role/SignificantAccountingPoliciesTables Significant Accounting Policies (Tables) Tables http://www.molinahealthcare.com/role/SignificantAccountingPolicies 19 false false R20.htm 9955513 - Disclosure - Net Income Per Share (Tables) Sheet http://www.molinahealthcare.com/role/NetIncomePerShareTables Net Income Per Share (Tables) Tables http://www.molinahealthcare.com/role/NetIncomePerShare 20 false false R21.htm 9955514 - Disclosure - Fair Value Measurements (Tables) Sheet http://www.molinahealthcare.com/role/FairValueMeasurementsTables Fair Value Measurements (Tables) Tables http://www.molinahealthcare.com/role/FairValueMeasurements 21 false false R22.htm 9955515 - Disclosure - Investments (Tables) Sheet http://www.molinahealthcare.com/role/InvestmentsTables Investments (Tables) Tables http://www.molinahealthcare.com/role/Investments 22 false false R23.htm 9955516 - Disclosure - Medical Claims and Benefits Payable (Tables) Sheet http://www.molinahealthcare.com/role/MedicalClaimsandBenefitsPayableTables Medical Claims and Benefits Payable (Tables) Tables http://www.molinahealthcare.com/role/MedicalClaimsandBenefitsPayable 23 false false R24.htm 9955517 - Disclosure - Debt (Tables) Sheet http://www.molinahealthcare.com/role/DebtTables Debt (Tables) Tables http://www.molinahealthcare.com/role/Debt 24 false false R25.htm 9955518 - Disclosure - Segments (Tables) Sheet http://www.molinahealthcare.com/role/SegmentsTables Segments (Tables) Tables http://www.molinahealthcare.com/role/Segments 25 false false R26.htm 9955519 - Disclosure - Organization and Basis of Presentation (Details) Sheet http://www.molinahealthcare.com/role/OrganizationandBasisofPresentationDetails Organization and Basis of Presentation (Details) Details http://www.molinahealthcare.com/role/OrganizationandBasisofPresentation 26 false false R27.htm 9955520 - Disclosure - Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) Sheet http://www.molinahealthcare.com/role/SignificantAccountingPoliciesCashCashEquivalentsandRestrictedCashDetails Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) Details 27 false false R28.htm 9955521 - Disclosure - Significant Accounting Policies - Narrative (Details) Sheet http://www.molinahealthcare.com/role/SignificantAccountingPoliciesNarrativeDetails Significant Accounting Policies - Narrative (Details) Details 28 false false R29.htm 9955522 - Disclosure - Net Income Per Share (Details) Sheet http://www.molinahealthcare.com/role/NetIncomePerShareDetails Net Income Per Share (Details) Details http://www.molinahealthcare.com/role/NetIncomePerShareTables 29 false false R30.htm 9955523 - Disclosure - Fair Value Measurements - Financial Instruments on a Recurring Basis (Details) Sheet http://www.molinahealthcare.com/role/FairValueMeasurementsFinancialInstrumentsonaRecurringBasisDetails Fair Value Measurements - Financial Instruments on a Recurring Basis (Details) Details 30 false false R31.htm 9955524 - Disclosure - Fair Value Measurements - Long-Term Debt (Details) Sheet http://www.molinahealthcare.com/role/FairValueMeasurementsLongTermDebtDetails Fair Value Measurements - Long-Term Debt (Details) Details 31 false false R32.htm 9955525 - Disclosure - Investments -Schedule of Investments (Details) Sheet http://www.molinahealthcare.com/role/InvestmentsScheduleofInvestmentsDetails Investments -Schedule of Investments (Details) Details 32 false false R33.htm 9955526 - Disclosure - Investments - Contractual Maturities of Available-for-Sale Investments (Details) Sheet http://www.molinahealthcare.com/role/InvestmentsContractualMaturitiesofAvailableforSaleInvestmentsDetails Investments - Contractual Maturities of Available-for-Sale Investments (Details) Details 33 false false R34.htm 9955527 - Disclosure - Investments - Narrative (Details) Sheet http://www.molinahealthcare.com/role/InvestmentsNarrativeDetails Investments - Narrative (Details) Details 34 false false R35.htm 9955528 - Disclosure - Investments - Available-for-Sale Investments (Details) Sheet http://www.molinahealthcare.com/role/InvestmentsAvailableforSaleInvestmentsDetails Investments - Available-for-Sale Investments (Details) Details 35 false false R36.htm 9955529 - Disclosure - Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) Sheet http://www.molinahealthcare.com/role/MedicalClaimsandBenefitsPayableComponentsofChangeinMedicalClaimsandBenefitsPayableDetails Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) Details 36 false false R37.htm 9955530 - Disclosure - Medical Claims and Benefits Payable - Narrative (Details) Sheet http://www.molinahealthcare.com/role/MedicalClaimsandBenefitsPayableNarrativeDetails Medical Claims and Benefits Payable - Narrative (Details) Details 37 false false R38.htm 9955531 - Disclosure - Debt - Schedule of Long-Term Debt (Details) Sheet http://www.molinahealthcare.com/role/DebtScheduleofLongTermDebtDetails Debt - Schedule of Long-Term Debt (Details) Details 38 false false R39.htm 9955532 - Disclosure - Debt - Narrative (Details) Sheet http://www.molinahealthcare.com/role/DebtNarrativeDetails Debt - Narrative (Details) Details 39 false false R40.htm 9955533 - Disclosure - Segments - Narrative (Details) Sheet http://www.molinahealthcare.com/role/SegmentsNarrativeDetails Segments - Narrative (Details) Details 40 false false R41.htm 9955534 - Disclosure - Segments - Reconciliation of Gross Margin to Consolidated Income (Details) Sheet http://www.molinahealthcare.com/role/SegmentsReconciliationofGrossMargintoConsolidatedIncomeDetails Segments - Reconciliation of Gross Margin to Consolidated Income (Details) Details 41 false false All Reports Book All Reports moh-20260331.htm moh-20260331.xsd moh-20260331_cal.xml moh-20260331_def.xml moh-20260331_lab.xml moh-20260331_pre.xml moh-20260331_g1.jpg http://fasb.org/us-gaap/2025 http://xbrl.sec.gov/dei/2025 http://xbrl.sec.gov/ecd/2025 true true