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Fair Value Measurement - Nonrecurring Fair Value Measurements (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | $ 347 | $ 191
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for investment | 0 | 0
Loans held for sale | 515 | 11
Other investments | 1,329 | 1,326
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for investment | 308,044 | 302,920
Loans held for sale | 0 | 0
Other investments | 0 | 0
Nonrecurring |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for investment | 545 | 284
Loans held for sale | 37 | 11
Other assets | 214 | 220
Total | 796 | 515
Nonrecurring | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for investment | 0 | 0
Loans held for sale | 37 | 11
Other assets | 0 | 0
Total | 37 | 11
Nonrecurring | Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for investment | 545 | 284
Loans held for sale | 0 | 0
Other assets | 214 | 220
Total | 759 | 504
Equity investments accounted for under measurement alternative | 46 | 4
Foreclosed property and repossessed assets, fair value disclosure | 45 | 55
Other investments |  | 3
Long lived assets held for sale | $ 123 | $ 158

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