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Variable Interest Entities and Securitizations - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Variable Interest Entity [Line Items] |  |  |
Amortization method qualified affordable housing investments, amortization | $ 178 | $ 170 |
Affordable housing tax credits | 184 | $ 177 |
Amortization method qualified affordable housing investments | 5,300 |  | $ 5,500
Qualified affordable housing investments, commitment | 2,200 |  | 2,300
Assets | 481,720 |  | 478,464
VIE, reporting entity involvement, maximum loss exposure | 6,061 |  | 6,175
Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 6,061 |  | 6,175
Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 32,051 |  | 33,288
Affordable housing entities |  |  |
Variable Interest Entity [Line Items] |  |  |
VIE, reporting entity involvement, maximum loss exposure | 5,650 |  | 5,726
Affordable housing entities | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 5,650 |  | 5,726
Total assets of the unconsolidated VIE investment funds | 18,800 |  | 18,600
Affordable housing entities | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 295 |  | 297
Entities that provide capital to low-income and rural communities |  |  |
Variable Interest Entity [Line Items] |  |  |
VIE, reporting entity involvement, maximum loss exposure | 0 |  | 0
Entities that provide capital to low-income and rural communities | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 0 |  | 0
Entities that provide capital to low-income and rural communities | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 2,872 |  | 2,498
Other |  |  |
Variable Interest Entity [Line Items] |  |  |
VIE, reporting entity involvement, maximum loss exposure | 411 |  | 449
Other | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 411 |  | 449
Other | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | $ 0 |  | $ 0

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