Leases - Lessor: Investment in Operating Leases (Detail) - Investment in Operating Leases - JPY (¥) ¥ in Millions	Mar. 31, 2026	Mar. 31, 2025
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Gross	¥ 3,074,066	¥ 2,795,246
Accumulated depreciation	(1,033,293)	(946,341)
Net	2,040,773	1,848,905
Right-of-use assets	69,030	73,518
Accrued rental receivables	44,415	46,248
Allowance for doubtful receivables on operating leases	(1,398)	(1,493)
Investment in Operating Leases	2,152,820	1,967,178
Transportation equipment
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Gross	1,987,797	1,912,604
Measuring and information-related equipment
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Gross	523,388	436,122
Real estate
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Gross	461,203	364,004
Other
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Gross	¥ 101,678	¥ 82,516

Allowances for doubtful receivables on operating leases.

No definition available.

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- Definition

Operating lease right of use asset Net.

+ References

No definition available.

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- Definition

Operating Leases Accrued Rental Receivable

+ References

No definition available.

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- Definition

Property Subject to or Available for Operating Lease, Net of Accumulated Depreciation

+ References

No definition available.

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- Definition

Amount of accumulated depreciation of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

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- Definition

Amount, before accumulated depreciation, of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

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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.

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Amount, after accumulated depreciation, of lessor's underlying asset for which right to use has been conveyed to lessee under operating lease.

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