Commitments and contingencies - Commitments and Contingent Liabilities Outstanding (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Commitments to extend credit | ||
| Commercial and industrial | $ 37,156 | $ 35,654 |
| Commercial real estate loans to be sold | 485 | 773 |
| Other commercial real estate | 3,292 | 2,331 |
| Residential real estate loans to be sold | 258 | 224 |
| Other residential real estate | 794 | 679 |
| Home equity lines of credit | 7,885 | 7,974 |
| Credit cards | 6,762 | 6,601 |
| Other | 354 | 444 |
| Standby letters of credit | 2,332 | 2,318 |
| Commercial letters of credit | 63 | 72 |
| Financial guarantees and indemnification contracts | 4,883 | 4,751 |
| Commitments to sell real estate loans | $ 1,207 | $ 1,898 |
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- Definition Commitments regarding commercial letters of credit. No definition available.
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- Definition Commitments regarding financial guarantees and indemnification contracts. No definition available.
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- Definition Commitments to extend credit. No definition available.
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- Definition Commitments To Extend Credit For Commercial And Industrial No definition available.
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- Definition Commitments to extend credit for commercial and other. No definition available.
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- Definition Commitments to extend credit for commercial real estate loans to be sold. No definition available.
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- Definition Commitments To Extend Credit For Credit Cards No definition available.
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- Definition Commitments to extend credit for home equity lines of credit. No definition available.
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- Definition Commitments to extend credit for other commercial real estate. No definition available.
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- Definition Commitments to extend credit for other residential real estate. No definition available.
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- Definition Commitments to extend credit for residential real estate loans to be sold. No definition available.
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- Definition Commitments to sell real estate loans notional amount. No definition available.
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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