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Variable Interest Entities - Additional Information (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
CDC investments |  |  |  |  |
Variable Interest Entity |  |  |  |  |
CDC investments | $ 2,900 |  | $ 2,900 |  | $ 2,100
Unfunded commitments in qualifying LIHTC investments | 1,100 |  | $ 1,100 |  | $ 714
CDC investments | Minimum |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Unfunded commitments, year expected to be funded |  |  | 2026 |  |
CDC investments | Maximum |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Unfunded commitments, year expected to be funded |  |  | 2044 |  |
Private equity investments |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Capital contribution to private equity investments | $ 20 | $ 14 | $ 33 | $ 31 |

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