Debt issued measured at amortized cost (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Disclosure Of Financial Liabilities [Line Items] | ||
| Short-term debt | $ 44,031 | $ 33,870 |
| Senior unsecured debt | 22,309 | 24,695 |
| Covered bonds | 14,666 | 11,689 |
| Subordinated debt | 310 | 328 |
| Debt issued through the Swiss central mortgage institutions | 28,440 | 29,169 |
| Other long-term debt | 183 | 456 |
| Long-term debt | 65,908 | 66,337 |
| Total debt issued measured at amortized cost | $ 109,939 | $ 100,207 |
| Secured portion of Covered bonds | 100.00% | 100.00% |
| Secured portion of Debt issued through the Swiss central mortgage institutions | 100.00% | 100.00% |
| Secured portion of Other long-term debt | 91.00% | 97.00% |
| Unsecured portion of total debt issued measured at amortized cost | 100.00% | 100.00% |
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- Definition The amount of current debt instruments issued. [Refer: Debt instruments issued] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of instruments issued by the entity that represent indebtedness. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. No definition available.
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- Definition The amount of non-current debt instruments issued. [Refer: Debt instruments issued] Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of liabilities that are subordinate to other liabilities with respect to claims. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of covered bonds issued by the entity. No definition available.
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- Definition The percentage for secured portion of Covered bonds. No definition available.
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- Definition The amount of senior unsecured bonds other than TLAC issued by the entity. No definition available.
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- Definition The percentage for unsecured portion of total debt issued measured at amortized cost balance, after excluding Covered bonds, Debt issued through the Swiss central mortgage institutions, and Other long-term debt. No definition available.
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- Definition The amount of debt issued through the central bond institutions of the Swiss regional or cantonal banks No definition available.
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- Definition The percentage for secured portion of Debt issued through the Swiss central mortgage institutions. No definition available.
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- Definition The amount of other miscellaneous long-term debt issued by the entiy No definition available.
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- Definition The percentage for secured portion of Other long-term debt. No definition available.
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