Securitizations and Variable Interest Entities - Additional information (Detail) - JPY (¥) ¥ in Billions |
12 Months Ended | |
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Mar. 31, 2026 |
Mar. 31, 2025 |
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| Variable Interest Entity [Line Items] | ||
| Cash proceeds from SPEs in new securitizations | ¥ 512 | ¥ 635 |
| Securitization or asset-backed financing arrangement, financial asset for which transfer is accounted as sale, gain on sale | 2 | 0 |
| Debt securities issued by SPEs with an initial fair value | 824 | 708 |
| Cash inflows from third parties on the sale of debt securities | 1,106 | 743 |
| Cumulative balance of financial assets transferred to SPEs | 7,919 | 7,123 |
| Retained interests | 208 | 250 |
| Cash inflows from the SPEs on the retained interests | ¥ 43 | ¥ 28 |
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- Definition Cash inflow (outflow) from SPEs on retained interests continuously held by entity. No definition available.
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- Definition Cumulative Balance of Financial Assets Transferred to Spes No definition available.
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- Definition Debt Securities Issued by Special Purpose Entities Initial Fair Value No definition available.
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- Definition The carrying amount (fair value) as of the balance sheet date of the transferor's interests in transferred financial assets (typically securitized receivables, generally not involved in the collection of principal) following transfer of significant portions of such financial instruments to other parties. Such interests could be ancillary cash flows and interest-only strips. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The cash inflow from the securitization of loans held for investment. Securitization is the structured process whereby interests in loans and other receivables are packaged, underwritten, and sold in the form of asset-backed securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Reflects, by transferred financial asset type, the amount of sales proceeds in excess of or deficient from the sum of the carrying amounts of transferred financial assets plus transaction costs, including those transactions in which the seller/transferor has continuing involvement with the financial assets that have been transferred. 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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