Financial income and expense - Summary of financial expenses (Detail) - JPY (¥) ¥ in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|||
| Disclosure of Detailed Information about Financial Expense [Abstract] | |||||
| Interest expenses, Financial liabilities measured at AC | ¥ 18,249 | ¥ 25,476 | ¥ 28,163 | ||
| Interest expenses, Other | 17,326 | 15,400 | 12,833 | ||
| Foreign exchange loss, net | [1] | 30,181 | 1,902 | 6,989 | |
| Other | 35,418 | 29,683 | 17,781 | ||
| Total | ¥ 101,174 | ¥ 72,461 | ¥ 65,766 | ||
| |||||