Trade Receivables - Changes in Allowance for Impairment Losses on Trade Receivables (Detail) - Trade receivables [member] - JPY (¥) ¥ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Disclosure of financial assets [line items] | |||
| Balance at beginning of year | ¥ 8,466 | ¥ 8,402 | ¥ 8,620 |
| Remeasurement | 75 | 490 | 274 |
| Write-offs | (492) | (133) | (1,114) |
| Exchange differences on translating foreign operations | 689 | (293) | 622 |
| Balance at end of year | ¥ 8,738 | ¥ 8,466 | ¥ 8,402 |