Borrowed Funds - Schedule of Breakdown of borrowed funds (Details) - USD ($) $ in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Debt Instrument | ||
| Total short-term borrowings | $ 4,000 | $ 2,750 |
| Total long-term debt | 8,184 | 11,676 |
| Borrowed Funds | $ 12,184 | $ 14,426 |
| Weighted average interest rate on short-term borrowings | 3.92% | 4.67% |
| Weighted average interest rate on long-term debt | 4.53% | 4.94% |
| FHLB advances | ||
| Debt Instrument | ||
| Total long-term debt | $ 7,151 | $ 10,650 |
| Junior subordinated debentures | ||
| Debt Instrument | ||
| Total long-term debt | 585 | 582 |
| Subordinated notes | ||
| Debt Instrument | ||
| Total long-term debt | $ 448 | $ 444 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available.
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- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average interest rate of long-term debt outstanding calculated over time. No definition available.
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- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average interest rate of short-term debt outstanding calculated over time. No definition available.
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