Variable Interest Entities - Schedule of the Impact of Qualifying LIHTC Investments (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Low income housing tax credits | ||||
| Variable Interest Entity [Line Items] | ||||
| Amortization of qualifying investments | $ 21 | $ 17 | $ 42 | $ 35 |
| Tax credits and Other tax benefits related to qualifying investments | (24) | (21) | (47) | (40) |
| Other tax benefits related to qualifying LIHTC investments | ||||
| Variable Interest Entity [Line Items] | ||||
| Tax credits and Other tax benefits related to qualifying investments | $ (2) | $ (3) | $ (5) | $ (5) |