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Variable Interest Entities and Asset Securitizations - Summary of Carrying Amount (Details) - Variable Interest Entity Primary Beneficiary - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Affordable Housing Projects |  |
Variable Interest Entity [Line Items] |  |
Investment in partnership carrying amount | $ 1,365 | $ 1,340
Unfunded commitments includes carrying amount of its investments | 431 | 410
Contingent commitments to provide additional capital contributions to partnerships | 65 | 55
Renewable Energy |  |
Variable Interest Entity [Line Items] |  |
Investment in partnership carrying amount | 71 | 80
Unfunded commitments includes carrying amount of its investments | 0 | 31
Other Projects |  |
Variable Interest Entity [Line Items] |  |
Investment in partnership carrying amount | 38 | 41
Unfunded commitments includes carrying amount of its investments | $ 0 | $ 0

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