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Commitments, Guarantees and Contingent Liabilities (Tables)

6 Months Ended

Sep. 30, 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, 2025 and September 30, 2025, the amounts due are as follows:

		Millions of yen
		March 31, 2025				September 30, 2025
Within one year		¥	5,809			¥	5,812
More than one year			7,660				6,113
Total		¥	13,469			¥	11,925

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, 2025 and September 30, 2025:

		March 31, 2025												September 30, 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		¥	558,862			¥	5,223				2031			¥	570,319			¥	5,565				2032
Transferred loans			543,453				6,918				2062				550,686				8,535				2062
Real estate loans			8,408				135				2048				3,214				0				2026
Other			13,261				0				2044				15,411				0				2043
Total		¥	1,123,984			¥	12,276				—			¥	1,139,630			¥	14,100				—

Assets Provided as Collateral for Short-Term and Long-Term Debt Payables to Financial Institutions

Collateral—Other than the assets of the consolidated VIEs pledged as collateral for financing described in Note 10 “Variable Interest Entities”, the Company and certain subsidiaries provide the following assets as collateral for the short-term and long-term debt payables to financial institutions as of March 31, 2025 and September 30, 2025:

		Millions of yen
		March 31, 2025				September 30, 2025
Lease payments, loans and investment in operating leases		¥	301,092			¥	294,204
Investment in securities			299,588				338,366
Property under facility operations			303,491				345,472
Other assets and other			115,982				165,832
Total		¥	1,020,153			¥	1,143,874

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Contractual Commitments

+ References

No definition available.

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Tabular disclosure of financial instruments held by the entity for its own account for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Description may include equity, fixed income, debt or other securities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481444/860-30-45-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 860
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481420/860-30-50-1A

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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

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