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Significant Accounting Policies - Amounts Due To Government Agencies (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Medicaid program: |  |
Minimum MLR and profit sharing | $ 513 | $ 92
Other | 76 | 95
Medicare program: |  |
Risk adjustment and Part D risk sharing | 45 | 14
Minimum MLR and profit sharing | 62 | 36
Other | 30 | 21
Marketplace program: |  |
Risk adjustment | 326 | 368
Minimum MLR | 37 | 15
Other | 21 | 23
Magellan Complete Care | 143 | 0
Total amounts due government agencies | $ 1,253 | $ 664

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