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Other Liabilities - Schedule of Other Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
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Other Liabilities Disclosure [Abstract] |  |
Fair value of derivative financial instruments | $ 912 | $ 486
Lease liabilities | 411 | 352
Accrued expenses and accounts payable | 462 | 275
Commitments to fund tax credit investments | 901 | 295
Deferred taxes | 3,627 | 286
Reserve for off-balance sheet credit exposure | 318 | 106
Incentive plan liabilities | 518 | 267
Accrued interest payable | 146 | 57
Other | 854 | 464
Total other liabilities | $ 8,149 | $ 2,588

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