Derivative Financial Instruments and Hedging (Credit Derivatives) (Detail) - Credit Default Swap - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Credit Derivatives [Line Items] | ||
| Maximum potential amount of future payment under the credit derivative | ¥ 1,000 | ¥ 1,000 |
| Fair value of the credit derivative | ¥ (2) | ¥ (3) |
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- Definition Maximum potential amount of future undiscounted payments that could be required under the credit derivative, before reduction for potential recoveries under recourse or collateralization provisions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 Fair value of credit risk derivative asset after deduction of credit risk derivative liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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