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Other Borrowed Funds (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
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Debt Disclosure [Abstract] |  |
Other Short-term Borrowings | $ 2,080.0 | $ 2,603.0
Short-Term Debt [Line Items] |  |
Other Short-term Borrowings | 2,080.0 | 2,603.0
Average fixed rate borrowings in tenors up to one-week |  |
Debt Disclosure [Abstract] |  |
Other Short-term Borrowings |  | $ 2,603.0
Fixed-to-floating rate (percent) |  | 5.52%
Short-Term Debt [Line Items] |  |
Fixed-to-floating rate (percent) |  | 5.52%
Other Short-term Borrowings |  | $ 2,603.0
Average fixed rate borrowings in tenors of 12-months |  |
Debt Disclosure [Abstract] |  |
Other Short-term Borrowings | $ 1,830.0 |
Fixed-to-floating rate (percent) | 4.87% |
Short-Term Debt [Line Items] |  |
Fixed-to-floating rate (percent) | 4.87% |
Other Short-term Borrowings | $ 1,830.0 |
Average fixed rate borrowings in tenors over twelve-months |  |
Debt Disclosure [Abstract] |  |
Other Short-term Borrowings | $ 250.0 |
Fixed-to-floating rate (percent) | 4.72% |
Short-Term Debt [Line Items] |  |
Fixed-to-floating rate (percent) | 4.72% |
Other Short-term Borrowings | $ 250.0 |

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