Organization and Basis of Presentation	12 Months Ended
Organization and Basis of Presentation	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Organization and Operations Molina Healthcare, Inc. provides managed healthcare services under the Medicaid and Medicare programs, through the state insurance marketplaces (the “Marketplace”), and under other government-sponsored healthcare programs for low-income families and individuals, most of whom receive government subsidies for premiums. As of December 31, 2020, we had two reportable segments: the Health Plans segment, and the Other segment. Our reportable segments are consistent with how we currently manage the business and view the markets we serve. Through our locally operated health plans in 15 states, we served approximately 4.0 million members as of December 31, 2020. In addition, in connection with our acquisition of Magellan Complete Care on December 31, 2020, we added approximately 200,000 members, and now operate health plans in 18 states. These health plans are generally operated by our respective wholly owned subsidiaries in those states, and licensed as health maintenance organizations (“HMOs”). Our state Medicaid contracts typically have terms of three to five years, contain renewal options exercisable by the state Medicaid agency, and allow either the state or the health plan to terminate the contract with or without cause. Such contracts are subject to risk of loss in states that issue requests for proposal (“RFP”) open to competitive bidding by other health plans. If one of our health plans is not a successful responsive bidder to a state RFP, its contract may not be renewed. In addition to contract renewal, our state Medicaid contracts may be periodically amended to include or exclude certain health benefits (such as pharmacy services, behavioral health services, or long-term care services); populations such as the aged, blind or disabled; and regions or service areas. Recent Developments – Health Plans Segment Acquisition of Magellan Complete Care. On December 31, 2020, we closed on our acquisition of 100% of the outstanding equity interests of the Magellan Complete Care line of business of Magellan Health, Inc., for total purchase consideration of approximately $1,037 million. Because this acquisition closed on December 31, 2020, Magellan Complete Care’s operating results were insignificant to our consolidated results of operations for the year ended December 31, 2020. See Note 4, “Business Combinations,” for further information. New York. In September 2020, we entered into a definitive agreement to acquire substantially all the assets of Affinity Health Plan, Inc. The net purchase price for the transaction is approximately $380 million, subject to various adjustments at closing, which we intend to fund with cash on hand. We currently expect the transaction to close as early as the second quarter of 2021. In July 2020, we completed the acquisition of certain assets of YourCare Health Plan, Inc. See Note 4, “Business Combinations,” for further information. Kentucky. In May 2020, our Kentucky health plan was selected as an awardee pursuant to the statewide Medicaid managed care RFP issued by the Kentucky Cabinet for Health and Family Services, Department of Medicaid Services. The new Medicaid contract began on January 1, 2021. In connection with this RFP award, we completed the acquisition of certain assets of Passport Health Plan, Inc. (“Passport”) in September 2020. See Note 4, “Business Combinations,” for further information. Texas. In March 2020, the Texas Health and Human Services Commission (“HHSC”) notified our Texas health plan that HHSC had upheld our protest and had canceled all previously awarded contracts associated with the re-procurement awards announced in October 2019 for the ABD program (known in Texas as “STAR+PLUS”). In addition, HHSC canceled the pending re-procurement associated with the TANF and CHIP programs (known in Texas as “STAR/CHIP”). HHSC has indicated that the STAR+PLUS RFP will be posted in late 2021 or early 2022, with awards estimated to be announced in the second quarter of 2022, and start of operations in the fourth quarter of 2023. HHSC has also indicated that the STAR/CHIP RFP will be posted in the fourth quarter of 2022, with awards estimated to be announced in late 2022 or early 2023, and start of operations in the third quarter of 2024. Puerto Rico. We exited Puerto Rico’s Medicaid program when our contract expired on October 31, 2020. We have been working with the regulatory authorities and the provider community to ensure that our former members in Puerto Rico have reliable continuity of care. Consolidation and Presentation The consolidated financial statements include the accounts of Molina Healthcare, Inc., and its subsidiaries. All significant inter-company balances and transactions have been eliminated in consolidation. Financial information related to subsidiaries acquired during any year is included only for periods subsequent to their acquisition. In the opinion of management, all adjustments considered necessary for a fair presentation of the results as of the date and for the periods presented have been included; such adjustments consist of normal recurring adjustments. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Estimates also affect the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. Principal areas requiring the use of estimates include: •The determination of medical claims and benefits payable of our Health Plans segment; •Health Plans segment contractual provisions that may limit revenue recognition based upon the costs incurred or the profits realized under a specific contract; •Health Plans segment quality incentives that allow us to recognize incremental revenue if certain quality standards are met; •Settlements under risk or savings sharing programs; •Purchase price allocations relating to business combinations, including the determination of contingent consideration; •The assessment of long-lived and intangible assets, and goodwill, for impairment; •The determination of reserves for potential absorption of claims unpaid by insolvent providers; •The determination of reserves for the outcome of litigation; •The determination of valuation allowances for deferred tax assets; and •The determination of unrecognized tax benefits.