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Commitments, Guarantees and Contingent Liabilities (Tables) | 12 Months Ended
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Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract] |
Amounts Due of Certain Computer Systems Operated and Maintained under Non-cancelable Contracts with Third-party Service Providers | As of March 31, 2024 and 2025, the amounts due are as follows:
Years ending March 31, |  | 2024 |  |  | 2025 |
| Millions of yen |  |  | Millions of yen |
2025 |  |  | 6,218 |  |  |  | — |
2026 |  |  | 3,462 |  |  |  | 5,809 |
2027 |  |  | 2,735 |  |  |  | 4,618 |
2028 |  |  | 1,704 |  |  |  | 2,884 |
2029 |  |  | 52 |  |  |  | 106 |
2030 |  |  | — |  |  |  | 51 |
On or after 2030 |  |  | 1 |  |  |  | — |
On or after 2031 |  |  | — |  |  |  | 1 |
Total |  | ¥ | 14,172 |  |  | ¥ | 13,469 |
Summary of Potential Future Payments, Book Value Recorded as Guarantee Liabilities of Guarantee Contracts Outstanding and Maturity of Longest Guarantee Contracts | The following table represents the summary of potential future payments, book value recorded as guarantee liabilities of the guarantee contracts outstanding and maturity of the longest guarantee contracts as of March 31, 2024 and 2025:
|  | 2024 |  |  | 2025 |
|  | Millions of yen |  |  | Fiscal year |  |  | Millions of yen |  |  | Fiscal year |
Guarantees |  | Potential future payment |  |  | Book value of guarantee liabilities |  |  | Maturity of the longest contract |  |  | Potential future payment |  |  | Book value of guarantee liabilities |  |  | Maturity of the longest contract |
Corporate loans |  | ¥ | 608,543 |  |  | ¥ | 4,839 |  |  |  | 2048 |  |  | ¥ | 558,862 |  |  | ¥ | 5,223 |  |  |  | 2031 |
Transferred loans |  |  | 519,665 |  |  |  | 3,405 |  |  |  | 2062 |  |  |  | 543,453 |  |  |  | 6,918 |  |  |  | 2062 |
Real estate loans |  |  | 9,856 |  |  |  | 180 |  |  |  | 2048 |  |  |  | 8,408 |  |  |  | 135 |  |  |  | 2048 |
Other |  |  | 13,350 |  |  |  | 0 |  |  |  | 2044 |  |  |  | 13,261 |  |  |  | 0 |  |  |  | 2044 |
Total |  | ¥ | 1,151,414 |  |  | ¥ | 8,424 |  |  |  | — |  |  | ¥ | 1,123,984 |  |  | ¥ | 12,276 |  |  |  | — |

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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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