Related party transactions - Additional information (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2025 |
Mar. 31, 2024 |
---|---|---|
Disclosure of transactions between related parties [line items] | ||
Investment commitments amount, related party transactions | ¥ 5,905 | |
Joint ventures | ||
Disclosure of transactions between related parties [line items] | ||
Estimated financial effect of contingent liabilities | ¥ 3,856 |