Basis of Presentation	9 Months Ended
Sep. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Organization and Operations Molina Healthcare, Inc. provides quality managed health care to people receiving government assistance. We offer cost-effective Medicaid-related solutions to meet the health care needs of low-income families and individuals, and to assist government agencies in their administration of the Medicaid program. We have three reportable segments. These segments consist of our Health Plans segment, which constitutes the vast majority of our operations; our Molina Medicaid Solutions segment; and our Other segment. The Health Plans segment consists of health plans operating in 12 states and the Commonwealth of Puerto Rico. As of September 30, 2017, these health plans served approximately 4.5 million members eligible for Medicaid, Medicare, and other government-sponsored health care programs for low-income families and individuals. This membership includes Affordable Care Act Marketplace (Marketplace) members, most of whom receive government premium subsidies. The health plans are operated by our respective wholly owned subsidiaries in those states, each of which is licensed as a health maintenance organization (HMO). Our health plans’ state Medicaid contracts generally have terms of three to four years. These contracts typically 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. Our health plan subsidiaries have generally been successful in retaining their contracts, but such contracts are subject to risk of loss when a state issues a new request 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 be subject to non-renewal. 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. The Molina Medicaid Solutions segment provides support to state government agencies in the administration of their Medicaid programs, including business processing, information technology development and administrative services. The Other segment includes primarily our Pathways behavioral health and social services provider, and corporate amounts not allocated to other reportable segments. Recent Developments — Health Plans Segment Illinois Health Plan. In August 2017, Molina Healthcare of Illinois, Inc. was awarded a statewide Medicaid managed care contract by the Illinois Department of Healthcare and Family Services. This Medicaid contract further integrates behavioral health and physical health by combining the State’s three current managed care programs into one program. The contract begins January 1, 2018, for four years with options to renew annually for up to four additional years. Mississippi Health Plan. In June 2017, Molina Healthcare of Mississippi, Inc. was awarded a Medicaid Coordinated Care Contract for the statewide administration of the Mississippi Coordinated Access Network (MississippiCAN). The operational start date for the program is currently scheduled for October 1, 2018, pending the completion of a readiness review. The initial term of the contract is through June 2020, with options to renew annually for up to two additional years. Washington Health Plan. In May 2017, Molina Healthcare of Washington, Inc. was selected by the Washington State Health Care Authority to negotiate and enter into managed care contracts for the North Central region of the state’s Apple Health Integrated Managed Care Program. The start date for the new contract is scheduled for January 1, 2018. Terminated Medicare Acquisition. In August 2016, we entered into agreements with each of Aetna Inc. and Humana Inc. to acquire certain assets related to their Medicare Advantage business. The transaction was subject to closing conditions including the completion of the proposed acquisition of Humana by Aetna (the Aetna-Humana Merger). In January 2017, the U.S. District Court for the District of Columbia granted the request for relief made by the U.S. Department of Justice in its civil antitrust lawsuit against Aetna and Humana, to prohibit the Aetna-Humana Merger. In February 2017, our agreements with each of Aetna and Humana were terminated by the parties pursuant to the terms of the agreements. Under the termination agreements, we received an aggregate termination fee of $75 million from Aetna and Humana in the first quarter of 2017, which is reported in “Other income, net” in the accompanying consolidated statements of operations. New York Health Plan. In August 2016, we closed on our acquisition of the outstanding equity interests of Today’s Options of New York, Inc., which now operates as Molina Healthcare of New York, Inc. The purchase price allocation was completed, and the final purchase price adjustments were recorded, in the first quarter of 2017. Such adjustments were insignificant, and the final cash purchase price was $38 million. Impairment Losses Molina Medicaid Solutions segment. In the third quarter of 2017, we recorded a non-cash goodwill impairment loss of $28 million. See Note 10, “Impairment Losses.” Other segment. In the third quarter of 2017, we recorded a non-cash goodwill impairment loss of $101 million for our Pathways subsidiary. In the second quarter of 2017, we recorded non-cash goodwill and intangible assets impairment losses of $72 million, primarily for our Pathways subsidiary. See Note 10, “Impairment Losses.” Consolidation and Interim Financial Information The consolidated financial statements include the accounts of Molina Healthcare, Inc., its subsidiaries, and variable interest entities (VIEs) in which Molina Healthcare, Inc. is considered to be the primary beneficiary. Such VIEs are insignificant to our consolidated financial position and results of operations. 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 current interim period are not necessarily indicative of the results for the entire year ending December 31, 2017. 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, 2016. Accordingly, certain disclosures that would substantially duplicate the disclosures contained in the December 31, 2016 audited consolidated financial statements have been omitted. These unaudited consolidated interim financial statements should be read in conjunction with our December 31, 2016 audited consolidated financial statements.

Basis of Presentation

Organization and Operations

Molina Healthcare, Inc. provides quality managed health care to people receiving government assistance. We offer cost-effective Medicaid-related solutions to meet the health care needs of low-income families and individuals, and to assist government agencies in their administration of the Medicaid program. We have three reportable segments. These segments consist of our Health Plans segment, which constitutes the vast majority of our operations; our Molina Medicaid Solutions segment; and our Other segment.

The Health Plans segment consists of health plans operating in 12 states and the Commonwealth of Puerto Rico. As of September 30, 2017, these health plans served approximately 4.5 million members eligible for Medicaid, Medicare, and other government-sponsored health care programs for low-income families and individuals. This membership includes Affordable Care Act Marketplace (Marketplace) members, most of whom receive government premium subsidies. The health plans are operated by our respective wholly owned subsidiaries in those states, each of which is licensed as a health maintenance organization (HMO).

Our health plans’ state Medicaid contracts generally have terms of three to four years. These contracts typically 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. Our health plan subsidiaries have generally been successful in retaining their contracts, but such contracts are subject to risk of loss when a state issues a new request 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 be subject to non-renewal.

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.

The Molina Medicaid Solutions segment provides support to state government agencies in the administration of their Medicaid programs, including business processing, information technology development and administrative services.

The Other segment includes primarily our Pathways behavioral health and social services provider, and corporate amounts not allocated to other reportable segments.

Recent Developments — Health Plans Segment

Illinois Health Plan. In August 2017, Molina Healthcare of Illinois, Inc. was awarded a statewide Medicaid managed care contract by the Illinois Department of Healthcare and Family Services. This Medicaid contract further integrates behavioral health and physical health by combining the State’s three current managed care programs into one program. The contract begins January 1, 2018, for four years with options to renew annually for up to four additional years.

Mississippi Health Plan. In June 2017, Molina Healthcare of Mississippi, Inc. was awarded a Medicaid Coordinated Care Contract for the statewide administration of the Mississippi Coordinated Access Network (MississippiCAN). The operational start date for the program is currently scheduled for October 1, 2018, pending the completion of a readiness review. The initial term of the contract is through June 2020, with options to renew annually for up to two additional years.

Washington Health Plan. In May 2017, Molina Healthcare of Washington, Inc. was selected by the Washington State Health Care Authority to negotiate and enter into managed care contracts for the North Central region of the state’s Apple Health Integrated Managed Care Program. The start date for the new contract is scheduled for January 1, 2018.

Terminated Medicare Acquisition. In August 2016, we entered into agreements with each of Aetna Inc. and Humana Inc. to acquire certain assets related to their Medicare Advantage business. The transaction was subject to closing conditions including the completion of the proposed acquisition of Humana by Aetna (the Aetna-Humana Merger). In January 2017, the U.S. District Court for the District of Columbia granted the request for relief made by the U.S. Department of Justice in its civil antitrust lawsuit against Aetna and Humana, to prohibit the Aetna-Humana Merger. In February 2017, our agreements with each of Aetna and Humana were terminated by the parties pursuant to the terms of the agreements. Under the termination agreements, we received an aggregate termination fee of $75 million from Aetna and Humana in the first quarter of 2017, which is reported in “Other income, net” in the accompanying consolidated statements of operations.

New York Health Plan. In August 2016, we closed on our acquisition of the outstanding equity interests of Today’s Options of New York, Inc., which now operates as Molina Healthcare of New York, Inc. The purchase price allocation was completed, and the final purchase price adjustments were recorded, in the first quarter of 2017. Such adjustments were insignificant, and the final cash purchase price was $38 million.

Impairment Losses

Molina Medicaid Solutions segment. In the third quarter of 2017, we recorded a non-cash goodwill impairment loss of $28 million. See Note 10, “Impairment Losses.”

Other segment. In the third quarter of 2017, we recorded a non-cash goodwill impairment loss of $101 million for our Pathways subsidiary. In the second quarter of 2017, we recorded non-cash goodwill and intangible assets impairment losses of $72 million, primarily for our Pathways subsidiary. See Note 10, “Impairment Losses.”

Consolidation and Interim Financial Information

The consolidated financial statements include the accounts of Molina Healthcare, Inc., its subsidiaries, and variable interest entities (VIEs) in which Molina Healthcare, Inc. is considered to be the primary beneficiary. Such VIEs are insignificant to our consolidated financial position and results of operations. 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 current interim period are not necessarily indicative of the results for the entire year ending December 31, 2017.

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, 2016. Accordingly, certain disclosures that would substantially duplicate the disclosures contained in the December 31, 2016 audited consolidated financial statements have been omitted. These unaudited consolidated interim financial statements should be read in conjunction with our December 31, 2016 audited consolidated financial statements.