Borrowed Funds - Schedule of Interest Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Debt Disclosure [Abstract] | ||||
| Interest expense on short-term borrowings | $ 30 | $ 28 | $ 63 | $ 59 |
| Interest expense on long-term debt | 81 | 135 | 170 | 270 |
| Total interest expense | 111 | 163 | 233 | 329 |
| Amortization expense | $ 1 | $ 2 | $ 2 | $ 4 |
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- Definition Amount of amortization expense attributable to debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Aggregate amount of interest expense on all borrowings. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Interest expense incurred during the reporting period on long-term borrowings associated with Federal Home Loan Bank and Federal Reserve Bank advances. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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