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Significant Accounting Policies - Amounts Due To Government Agencies (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Medicaid program: |  |
Medical cost floors and corridors | $ 74 | $ 74
Other amounts due to states | 76 | 84
Marketplace program: |  |
Risk adjustment | 456 | 368
Other | 171 | 138
Total amounts due government agencies | $ 777 | $ 664

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