Borrowings (Narrative) (Details) - USD ($) $ in Billions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items] | ||
| FHLB advances | $ 3.4 | $ 3.2 |
| Minimum | ||
| Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items] | ||
| FHLB advances fixed interest rate | 3.84% | |
| Maximum | ||
| Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items] | ||
| FHLB advances fixed interest rate | 3.87% |