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v3.20.2

Organization and Basis of Presentation (Details) member in Millions, $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) state member | Apr. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) state segment member | Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Net cash paid in business combinations |  |  | $ 62 | $ 0
Affinity health plan |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net cash paid in business combinations | $ 380 |  |  |
Magellan complete care |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net cash paid in business combinations |  | $ 820 |  |
Health Plans |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Number of states in which entity operates | state | 15 |  | 15 |
Number of members eligible for the health care programs, approximately | member | 4.0 |  | 4.0 |
Minimum | Health Plans |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Contract term |  |  | 3 years |
Maximum | Health Plans |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Contract term |  |  | 5 years |

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