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Variable Interest Entities and Securitizations - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Variable Interest Entity [Line Items] |  |  |
Amortization method qualified affordable housing investments, amortization | $ 701 | $ 682 |
Affordable housing tax credits | 718 | 721 |
Amortization method qualified affordable housing investments | 5,300 | 5,500 |
Qualified affordable housing investments, commitment | 2,100 | 2,300 |
Assets | $ 490,144 | $ 478,464 |
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Cash Flows [Extensible Enumeration] | Income tax provision | Income tax provision | Income tax provision
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Income or Comprehensive Income [Extensible Enumeration] | Income tax provision | Income tax provision | Income tax provision
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Cash Flows [Extensible Enumeration] | Income tax provision | Income tax provision | Income tax provision
Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets | Other assets
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] | Income tax provision | Income tax provision | Income tax provision
Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | $ 6,418 | $ 6,175 |
VIE, reporting entity involvement, maximum loss exposure | 6,418 | 6,175 |
Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 31,812 | 33,288 |
Affordable housing entities | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 5,544 | 5,726 |
Total assets of the unconsolidated VIE investment funds | 18,100 | 18,600 |
VIE, reporting entity involvement, maximum loss exposure | 5,544 | 5,726 |
Affordable housing entities | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 354 | 297 |
Entities that provide capital to low-income and rural communities | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 0 | 0 |
VIE, reporting entity involvement, maximum loss exposure | 0 | 0 |
Entities that provide capital to low-income and rural communities | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 2,605 | 2,498 |
Other |  |  |
Variable Interest Entity [Line Items] |  |  |
Amortization method qualified affordable housing investments, amortization | 28 |  |
Affordable housing tax credits | 21 |  |
Amortization method qualified affordable housing investments | 562 |  |
Qualified affordable housing investments, commitment | 110 |  |
VIE, reporting entity involvement, maximum loss exposure |  | 449 |
Other | Unconsolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | 874 | 449 |
VIE, reporting entity involvement, maximum loss exposure | 874 | 449 |
Other | Consolidated |  |  |
Variable Interest Entity [Line Items] |  |  |
Assets | $ 0 | $ 0 |

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