Assets and Disposal Groups Held for Sale - Schedule of Assets Held for Sale and Disposal Groups (Details) - Disposal groups held for sale - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
|---|---|---|
| Disclosure of analysis of single amount of discontinued operations [line items] | ||
| Property, plant and equipment | ¥ 5,444 | ¥ 6,259 |
| Goodwill | 8,953 | 7,011 |
| Intangible assets | 3,497 | 33 |
| Other assets | 61 | 95 |
| Total assets | 17,955 | 13,397 |
| Trade and other payables | 102 | 0 |
| Other liabilities | 716 | 0 |
| Total liabilities | ¥ 818 | ¥ 0 |