Organization and Basis of Presentation	6 Months Ended
Organization and Basis of Presentation	Jun. 30, 2021
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, and through the state insurance marketplaces (the “Marketplace”). In the first quarter of 2021, we realigned our reportable operating segments to reflect recent changes in our internal operating and reporting structure, which is now organized by government program. These reportable segments consist of: 1) Medicaid; 2) Medicare; 3) Marketplace; and 4) Other. For further information, refer to Note 10, “Segments.” As of June 30, 2021, we served approximately 4.7 million members eligible for government-sponsored healthcare programs, located across 18 states. 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 (“RFPs”) 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 (“ABD”); and regions or service areas. Recent Developments California Procurement—Medicaid. The state currently expects a final RFP to be released at the end of 2021. Texas Acquisition—Medicaid and Medicare. On April 22, 2021, we announced a definitive agreement to acquire Cigna Corporation’s Texas Medicaid and Medicare-Medicaid Plan (“MMP”) contracts, along with certain operating assets. As of December 31, 2020, Cigna served approximately 48,000 members in the Texas ABD program, also known as “STAR+PLUS,” in the Hidalgo, Tarrant and Northeast service areas, and approximately 2,000 MMP members in the Hidalgo service area, with full year 2020 premium revenue of approximately $1.0 billion. The purchase price for the transaction is approximately $60 million, which we intend to fund with cash on hand. The transaction is subject to receipt of applicable federal and state regulatory approvals and satisfaction of other customary closing conditions. We currently expect the transaction to close in January 2022. Ohio Procurement—Medicaid. On April 13, 2021, we announced that our Ohio health plan subsidiary was selected as an awardee in all three regions across the state pursuant to the Medicaid managed care request for award issued on September 30, 2020, by the Ohio Department of Medicaid. This new contract is expected to begin in early 2022, and will offer health care coverage to Medicaid beneficiaries through the state of Ohio’s Covered Family and Children, Expansion, and ABD programs. New York Acquisition—Medicaid. In September 2020, we entered into a definitive agreement to acquire substantially all of the assets of Affinity Health Plan, Inc., a Medicaid health plan in New York. 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 in the fourth quarter of 2021. Consolidation and Interim Financial Information The consolidated financial statements include the accounts of Molina Healthcare, Inc., and its subsidiaries. In the opinion of management, all adjustments considered necessary for a fair presentation of the results as of the date and for the interim periods presented have been included; such adjustments consist of normal recurring adjustments. All significant intercompany balances and transactions have been eliminated. The consolidated results of operations for the six months ended June 30, 2021 are not necessarily indicative of the results for the entire year ending December 31, 2021. The unaudited consolidated interim financial statements have been prepared under the assumption that users of the interim financial data have either read or have access to our audited consolidated financial statements for the fiscal year ended December 31, 2020. Accordingly, certain disclosures that would substantially duplicate the disclosures contained in our December 31, 2020, audited consolidated financial statements have been omitted. These unaudited consolidated interim financial statements should be read in conjunction with our audited consolidated financial statements for the fiscal year ended December 31, 2020. Reclassifications Consistent with the change in reportable segments described above, certain prior year disclosures in Note 7, “Medical Claims and Benefits Payable,” and Note 10, “Segments,” have been recast to conform to the current year presentation. Certain immaterial amounts presented in the accompanying consolidated statement of cash flows for the six months ended June 30, 2020, have been reclassified to conform to the current year presentation. 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; •Contractual provisions that may limit revenue recognition based upon the costs incurred or the profits realized under a specific contract; •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.