Affordable Care Act - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2024 |
|
| Affordable Care Act [Abstract] | ||
| Risk adjustment, increase (decrease) to net payable | $ (131) | $ (1,475) |
| Risk adjustment and reinsurance pre-tax benefit | $ 920 |