Quarterly report pursuant to Section 13 or 15(d)

Affordable Care Act - Net Receivables (Payables) for Each of the Ongoing Programs (Details)

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Affordable Care Act - Net Receivables (Payables) for Each of the Ongoing Programs (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Affordable Care Act [Abstract]    
Risk adjustment receivable $ 463 $ 340
Risk adjustment payable (472) (1,224)
Minimum medical loss ratio (65) (238)
Cost sharing reduction receivable 92 101
Cost sharing reduction payable $ (12) $ (1)