Unsecured Borrowings - Subordinated Borrowings (Detail) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Debt Instrument [Line Items] | ||
| Total subordinated Borrowings, par amount | $ 13,386 | $ 11,064 |
| Total subordinated Borrowings | $ 12,713 | $ 10,439 |
| Rate | 5.88% | 6.07% |
| Subordinated debt | ||
| Debt Instrument [Line Items] | ||
| Subordinated debt, par amount | $ 12,418 | $ 10,096 |
| Subordinated debt outstanding | $ 11,694 | $ 9,413 |
| Rate | 5.93% | 6.12% |
| Junior subordinated debt | ||
| Debt Instrument [Line Items] | ||
| Subordinated debt, par amount | $ 968 | $ 968 |
| Junior subordinated debt | $ 1,019 | $ 1,026 |
| Rate | 5.16% | 5.58% |
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- Definition Subordinated debt outstanding. No definition available.
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- Definition Total subordinated Borrowings, par amount. No definition available.
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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 Weighted average interest rate of debt outstanding. No definition available.
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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