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Leases - Lessee: Supplemental Balance Sheet Information (Detail) - JPY (¥) ¥ in Millions | Mar. 31, 2024 | Mar. 31, 2023
--- | --- | ---
Operating And Finance Lease Supplemental Balance Sheet Information [Line Items] |  |
Right-of-use asset (operating leases) | ¥ 249,890 | ¥ 279,415
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other Assets | Other Assets
Operating lease, Other Liabilities | ¥ 252,344 | ¥ 280,829
Operating lease, Total lease liabilities | ¥ 252,344 | ¥ 280,829
Operating Lease, Liability, Statement of Financial Position [Extensible List] | Liabilities | Liabilities
Operating lease, Weighted average remaining lease term | 11 years | 11 years
Operating lease, Weighted average discount rate | 1.70% | 1.30%
Right-of-use asset (finance leases) | ¥ 7,284 | ¥ 6,544
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Net Investment in Lease, before Allowance for Credit Loss | Net Investment in Lease, before Allowance for Credit Loss
Finance leases, Other Liabilities | ¥ 7,877 | ¥ 7,129
Finance leases, Total lease liabilities | ¥ 7,877 | ¥ 7,129
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] | Liabilities | Liabilities
Finance leases, Weighted average remaining lease term | 35 years | 37 years
Finance leases, Weighted average discount rate | 2.20% | 2.40%
Investment in Operating Leases |  |
Operating And Finance Lease Supplemental Balance Sheet Information [Line Items] |  |
Right-of-use asset (operating leases) | ¥ 82,674 | ¥ 93,635
Right-of-use asset (finance leases) | 4,685 | 4,782
Property under Facility Operations |  |
Operating And Finance Lease Supplemental Balance Sheet Information [Line Items] |  |
Right-of-use asset (operating leases) | 72,284 | 85,036
Right-of-use asset (finance leases) | 2,306 | 1,394
Office Facilities |  |
Operating And Finance Lease Supplemental Balance Sheet Information [Line Items] |  |
Right-of-use asset (operating leases) | 94,932 | 100,744
Right-of-use asset (finance leases) | ¥ 293 | ¥ 368

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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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